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1.
ABC., imagem cardiovasc ; 37(1): e20230072-e20230072, jan. 2024. ilus.
Article in Portuguese | CONASS, SES-SP, LILACS, SESSP-IDPCPROD, SES-SP | ID: biblio-1527034

ABSTRACT

Relato de caso: Paciente masculino, 70 anos, hipertenso, diabético, dislipidêmico e ex-tabagista. Apresentou infarto agudo do miocárdio com supradesnivelamento do segmento ST de parede anterior, sendo submetido à angioplastia da artéria descendente anterior em julho de 2022. Em setembro de 2022, foi admitido em serviço de emergência de hospital geral com quadro de dor torácica ventilatório-dependente e dispneia. Ao exame físico, seu quadro era estável hemodinamicamente.


Subject(s)
Humans , Male , Aged , Heart Aneurysm/surgery , Myocardial Infarction , Ventricular Dysfunction, Left/diagnostic imaging
2.
Article in Spanish | LILACS, CUMED | ID: biblio-1550907

ABSTRACT

Introducción: El infarto del miocardio tipo 4a es una complicación del intervencionismo coronario percutáneo que incrementa el estado inflamatorio de los pacientes. Objetivo: Evaluar el valor diagnóstico del conteo absoluto de neutrófilos en la aparición de infarto del miocardio tipo 4a. Métodos: Se realizó una cohorte prospectiva en el Hospital Hermanos Ameijeiras. El universo estuvo constituido por 412 pacientes a los que se les realizó intervencionismo coronario percutáneo en el período comprendido de noviembre de 2018 a enero de 2021, la muestra fue de 232 pacientes. Se definieron variables clínicas, anatómicas, e inflamatorias. Resultados: Existieron diferencias significativas entre los pacientes con infarto tipo 4a y los que no tuvieron esta complicación según las variables clínicas: edad, índice de masa corporal, diabetes mellitus, enfermedad renal crónica y disfunción sistólica ventricular. La elevación del conteo absoluto de neutrófilos posterior al proceder con un área bajo la curva de 0,947 tuvo buena capacidad de discriminación de esta complicación (p = 0,000). En el diagnóstico de infarto periproceder el conteo absoluto de neutrófilos fue 7,35 posterior al proceder, tuvo una sensibilidad de 91,3 por ciento una especificidad de 96,2 por ciento. Conclusiones: Los neutrófilos fueron sensibles y específicos para el diagnóstico de infarto del miocardio tipo 4a(AU)


Introduction: Type 4 myocardial infarction is a complication of percutaneous coronary intervention that increases the inflammatory state of patients. Objective: To evaluate the diagnostic value of the absolute neutrophil count in the occurrence of type 4 myocardial infarction. Methods: A prospective cohort was carried out at Hermanos Ameijeiras Clinical Surgical Hospital. The universe consisted of 412 patients who underwent percutaneous coronary intervention from November 2018 to January 2021, two hundred thirty-two (232) patients form the sample. Clinical, anatomical and inflammatory variables were defined. Results: There were significant differences between patients with type 4 infarction and those who did not have this complication according to the clinical variables such as age, body mass index, diabetes mellitus, chronic kidney disease and ventricular systolic dysfunction. The subsequent elevation of the absolute neutrophil count when proceeding with an area under the 0.947 curve had good ability to discriminate this complication (p = 0.000). In the diagnosis of periprocedural infarction, the absolute neutrophil count was ≥ 7.35 after the procedure, it had 91.3percent sensitivity and 96.2percent specificity. Conclusions: Neutrophils were sensitive and specific for the diagnosis of type 4 myocardial infarction(AU)


Subject(s)
Humans , Male , Female , Percutaneous Coronary Intervention/methods , Neutrophils , Prospective Studies , Myocardial Infarction/epidemiology
3.
Evid. actual. práct. ambul. (En línea) ; 27(1): e007089, 2024. ilus, tab
Article in Spanish | LILACS, UNISALUD, BINACIS | ID: biblio-1552204

ABSTRACT

Antecedentes. El valor pronóstico de una ergometría positiva en el contexto de imágenes tomográficas de perfusión miocárdica de estrés y reposo (SPECT) normales no está bien establecido. Objetivos. Documentar la incidencia de infarto, muerte y revascularización coronaria en pacientes con una ergometría positiva de riesgo intermedio e imágenes de perfusión SPECT normales, y explorar el potencial valor del puntaje de riesgo de Framingham en la estratificación pronóstica de estos pacientes. Métodos. Cohorte retrospectiva integrada por pacientes que habían presentado síntomas o hallazgos electrocardiográficos compatibles con enfermedad arterial coronaria durante la prueba de esfuerzo, con criterios de riesgo intermedio en la puntuación de Duke y perfusión miocárdica SPECT normal. Fueron identificados a partir de la base de datos del laboratorio de cardiología nuclear del Instituto de Cardiología y Cirugía Cardiovascular de la ciudad de Posadas, Argentina. Resultados. Fueron elegibles 217 pacientes. El seguimiento fue de 3 1,5 años. La sobrevida libre de eventos (muerte,infarto de miocardio no fatal, angioplastia coronaria o cirugía de bypass de arteria coronaria) a uno, tres y cinco años fue significativamente menor (Log-rank test, p= 0,001) en el grupo con puntaje de Framingham alto o muy alto (77, 71y 59 %, respectivamente) que en el grupo de puntaje bajo o intermedio (89, 87 y 83 %). Tomando como referencia a los pacientes con riesgo bajo en el puntaje de Framingham, luego de ajustar por edad, sexo y puntaje de Duke, los pacientes categorizados en los estratos alto y muy alto riesgo del puntaje de Framingham presentaron una incidencia del evento combinado cercana al triple (hazard ratio [HR] 2,81; intervalo de confianza [IC] del 95 % 0,91 a 8,72; p= 0,07 y HR 3,61;IC 95 % 1,23 a 10,56; p= 0,019 respectivamente). Conclusiones. La estimación de riesgo con el puntaje de Framingham sería de ayuda en la estratificación pronóstica de los pacientes con ergometría positiva y SPECT normal. (AU)


Background. The prognostic value of positive exercise testing with normal SPECT myocardial perfusion imaging is not well established. Objectives. To document the incidence of infarction, death, and coronary revascularization in patients with a positive intermediate-risk exercise test and normal SPECT perfusion images and to explore the potential value of the Framingham Risk Score in the prognostic stratification of these patients. Methods. A retrospective cohort comprised patients who presented symptoms or electrocardiographic findings compatible with coronary artery disease during the stress test, with intermediate risk criteria in the Duke score and normal SPECT myocardial perfusion. They were identified from the database of the nuclear cardiology laboratory of the Instituto de Cardiología y Cirugía Cardiovascular of Posadas, Argentina. Results. 217 patients were eligible. Follow-up was 3 1.5 years. Event-free survival (death, non-fatal myocardial infarction, coronary angioplasty, or coronary artery bypass surgery) at one, three, and five years was significantly lower (Log-ranktest, p: 0.001) in the group with a score of Framingham high or very high (77, 71 and 59 %, respectively) than in the lowor intermediate score group (89, 87 and 83 %). Taking as reference the low-risk patients in the Framingham score, after adjusting for age, sex, and Duke score, the patients categorized in the high-risk and very high-risk strata showed about three times higher incidence of the combined event (hazard ratio [HR] 2.81; 95 % confidence interval [CI] 0.91 to 8.72;p=0.07 and HR 3.61; 95 % CI 1.23 to 10.56; p=0.019 respectively). Conclusions. Risk estimation with the Framingham score would be helpful in the prognostic stratification of patients with positive exercise testing and normal SPECT. (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Prognosis , Myocardial Infarction/prevention & control , Myocardial Infarction/diagnostic imaging , Survival Analysis , Tomography, Emission-Computed, Single-Photon , Incidence , Retrospective Studies , Risk Factors , Sensitivity and Specificity , Ergometry , Risk Assessment/methods , Exercise Test , Myocardial Perfusion Imaging , Percutaneous Coronary Intervention , Myocardial Infarction/mortality
4.
Article in Spanish | LILACS, UNISALUD, BINACIS | ID: biblio-1552286

ABSTRACT

La evaluación de la perfusión miocárdica con SPECT combina una prueba de esfuerzo (ergometría o estrés farmacológico) junto a imágenes de perfusión con radioisótopos. Este estudio es útil para establecer el diagnóstico de enfermedad arterial coronaria, estratificar el riesgo de infarto y tomar decisiones terapéuticas. Un resultado normal aporta un alto valor predictivo negativo, es decir, una muy baja probabilidad de que el paciente presente eventos cardiovasculares. El hallazgo de signos de isquemia en la ergometría podría poner en jaque el valor predictivo negativo de una perfusión normal. En presencia de este resultado, el paso siguiente es evaluar los predictores de riesgo en la ergometría, el riesgo propio del paciente en función de los antecedentes clínicos y el puntaje cálcico coronario, cuando este se encuentra disponible. Ante la presencia concomitante de otros marcadores de riesgo se sugiere completar la evaluación con un estudio anatómico.El uso de nuevas tecnologías podría mejorar la precisión en la predicción de eventos. (AU)


Assessment of myocardial perfusion with SPECT combines a stress test (ergometry or pharmacological stress) with radioisotope perfusion imaging. This test is helpful to diagnose coronary artery disease, stratify the risk of heart attack, and make therapeutic decisions. A normal result provides a high negative predictive value; therefore, the probability of cardiovascular events is very low. Signs of ischemia on an ergometry could jeopardize the negative predictive value of normal perfusion. In this clinical setting, the next step is to evaluate the risk predictors in the stress test, the individual risk based on the clinical history, and the coronary calcium score when available. Given the simultaneous presence of other risk markers,completing the evaluation with an anatomical study is suggested. The use of new technologies could improve the accuracy of event prediction. (AU)


Subject(s)
Humans , Tomography, Emission-Computed, Single-Photon , Ergometry , Myocardial Ischemia/diagnostic imaging , Risk Assessment/methods , Myocardial Perfusion Imaging , Myocardial Infarction/prevention & control , Prognosis , Survival , Coronary Artery Disease/diagnostic imaging , Sensitivity and Specificity , Exercise Test , Clinical Decision-Making
5.
Chinese Medical Journal ; (24): 63-72, 2024.
Article in English | WPRIM | ID: wpr-1007587

ABSTRACT

BACKGROUND@#The 2017 American College of Cardiology/American Heart Association (ACC/AHA) blood pressure (BP) guideline lowered the threshold defining hypertension to 130/80 mmHg. However, how stage 1 hypertension defined using this guideline is associated with cardiovascular events in Chinese adults remains unclear. This study assessed the association between stage 1 hypertension defined by the 2017 ACC/AHA guideline and clinical outcomes in the Chinese population.@*METHODS@#Participants with stage 1 hypertension ( n = 69,509) or normal BP ( n = 34,142) were followed in this study from 2006/2007 to 2020. Stage 1 hypertension was defined as a systolic blood pressure of 130-139 mmHg or a diastolic blood pressure of 80-89 mmHg. None were taking antihypertensive medication or had a history of myocardial infarction (MI), stroke, or cancer at baseline. The primary outcome was a composite of MI, stroke, and all-cause mortality. The secondary outcomes were individual components of the primary outcome. Cox proportional hazards models were used for the analysis.@*RESULTS@#During a median follow-up of 11.09 years, we observed 10,479 events (MI, n = 995; stroke, n = 3408; all-cause mortality, n = 7094). After multivariable adjustment, the hazard ratios for stage 1 hypertension vs. normal BP were 1.20 (95% confidence interval [CI], 1.13-1.25) for primary outcome, 1.24 (95% CI, 1.05-1.46) for MI, 1.45 (95% CI, 1.33-1.59) for stroke, and 1.11 (95% CI, 1.04-1.17) for all-cause mortality. The hazard ratios for participants with stage 1 hypertension who were prescribed antihypertensive medications compared with those without antihypertensive treatment during the follow-up was 0.90 (95% CI, 0.85-0.96).@*CONCLUSIONS@#Using the new definition, Chinese adults with untreated stage 1 hypertension are at higher risk for MI, stroke, and all-cause mortality. This finding may help to validate the new BP classification system in China.


Subject(s)
Adult , Humans , United States , Antihypertensive Agents/therapeutic use , Hypertension/complications , Blood Pressure/physiology , Myocardial Infarction/drug therapy , Stroke/drug therapy , American Heart Association , China/epidemiology
6.
Int. j. morphol ; 41(5): 1427-1438, oct. 2023.
Article in English | LILACS | ID: biblio-1521021

ABSTRACT

SUMMARY: The main cause of mortality and disability globally is myocardial infarction (MI). Isoproterenol (ISO), a β-adrenoceptor agonist, has been used to induce rat myocardial necrosis. Whereas interleukin-37 (IL-37) has anti-inflammatory and cytoprotective properties. The study aimed to investigate the potential protective effects of IL-37 administration on cardiac architecture, oxidative stress, and inflammatory markers during ISO-induced MI in rats. Three groups of adult male rats were used in this study, the normal control group (n=8), ISO-induced MI group (n=8) that received isoproterenol hydrochloride (ISO) (100 mg/kg/day, SC, for the first 2 consecutive days), and IL-37-treated group (ISO+IL-37) (n=8) that received recombinant human IL-37 (40 µg/kg /day, intraperitoneally, for 2 weeks during and after ISO injections. Heart rate (HR.) and ECG changes were monitored. Some oxidative stress markers such as superoxide dismutase (SOD), nitric oxide (NOx), malondialdehyde (MDA), and glutathione (GSH) tissue levels in the tissue homogenate were assayed. Interleukin- 6 (IL-6), tumor necrosis factor- α (TNF-α), caspase-8, P53, and C- reactive protein (CRP) were among the inflammatory markers examined. In addition, serum levels of creatinine kinase (CK-MB) and lactate dehydrogenase (LDH) were analyzed to evaluate the myocardial injury. For histological analysis, tissues were sectioned, fixed in paraffin, and stained with hematoxylin and eosin (H&E), Masson Trichrome and, immunohistochemical against NF-kB, TNF-α, and Caspase-9. IL-37 improved ECG changes, cardiac enzyme markers, and some inflammatory markers of oxidative stress in ISO-induced MI. It also improved the histopathological and immunohistochemical changes in MI. In conclusion: IL-37 might be a promising therapeutic modality in myocardial infarction.


La principal causa de mortalidad y discapacidad a nivel mundial es el infarto de miocardio (IM). El isoproterenol (ISO), un agonista de los receptores adrenérgicos β, se ha utilizado para inducir necrosis miocárdica en ratas. Mientras que la interleucina-37 (IL-37) tiene propiedades antiinflamatorias y citoprotectoras. El estudio tuvo como objetivo investigar los posibles efectos protectores de la administración de IL-37 en la arquitectura cardíaca, el estrés oxidativo y los marcadores inflamatorios durante el infarto de miocardio inducido por ISO en ratas. En este estudio se utilizaron tres grupos de ratas macho adultas, el grupo control normal (n=8), el grupo con IM inducido por ISO (n=8) que recibió clorhidrato de isoproterenol (ISO) (100 mg/kg/día, SC, durante los primeros 2 días consecutivos) y el grupo tratado con IL-37 (ISO+IL- 37) (n=8) que recibió IL-37 humana recombinante (40 µg/kg/día, por vía intraperitoneal, durante 2 semanas durante y después de las inyecciones de ISO. Se monitorearon la frecuencia cardíaca (FC) y los cambios en el ECG. Se analizaron algunos marcadores de estrés oxidativo como la superóxido dismutasa (SOD), el óxido nítrico (NOx), el malondialdehído (MDA) y los niveles tisulares de glutatión (GSH) en el homogeneizado de tejido. La interleucina-6 (IL-6), el factor de necrosis tumoral-α (TNF-α), la caspasa-8, la P53 y la proteína C reactiva (CRP) se encontraban entre los marcadores inflamatorios examinados. Se analizaron los niveles de creatinoquinasa (CK-MB) y lactato deshidrogenasa (LDH) para evaluar la lesión miocárdica; para el análisis histológico se seccionaron los tejidos, se fijaron en parafina y se tiñeron con hematoxilina y eosina (H&E), Tricromo de Masson e inmunohistoquímica contra NF-kB, TNF-α y Caspasa-9. IL-37 mejoró los cambios de ECG, los marcadores de enzimas cardíacas y algunos marcadores inflamatorios de estrés oxidativo en el IM inducido por ISO. Además mejoró los cambios histopatológicos e inmunohistoquímicos en MI. En conclusión: la IL-37 podría ser una modalidad terapéutica prometedora en el infarto de miocardio.


Subject(s)
Animals , Male , Rats , Interleukins/administration & dosage , Heart/drug effects , Myocardial Infarction/chemically induced , Myocardial Infarction/prevention & control , Immunohistochemistry , Rats, Wistar , Oxidative Stress/drug effects , Inflammation , Isoproterenol/adverse effects
7.
Medicentro (Villa Clara) ; 27(3)sept. 2023.
Article in Spanish | LILACS | ID: biblio-1514485

ABSTRACT

Introducción: La rehabilitación cardiovascular integral del paciente con infarto agudo de miocardio resulta fundamental para el logro de su bienestar físico y psicológico, y su reinserción a la vida social. Objetivo: Elaborar una estrategia de intervención psicoeducativa para potenciar la rehabilitación cardiovascular integral en pacientes convalecientes de infarto agudo de miocardio, con la visión de especialistas consultados. Métodos: Se realizó un estudio observacional, descriptivo y de corte transversal en el Hospital Universitario «Dr. Celestino Hernández Robau», de Santa Clara, entre octubre de 2019 y enero de 2021. La muestra estuvo conformada por 27 pacientes que asistieron a la consulta de Cardiología, y 7 especialistas según criterios de inclusión. Las técnicas aplicadas fueron: la revisión de historia clínica, entrevistas semiestructuradas a pacientes y especialistas, la encuesta sobre el conocimiento de la enfermedad, un autorreporte vivencial y la evaluación del estilo vida. Se utilizaron estadísticos descriptivos acorde a la medición de las variables, análisis de contenido y triangulación de la información. Resultados: En los pacientes diagnosticados con estilo de vida poco saludable, predominó un conocimiento medianamente suficiente de la enfermedad; la hipertensión arterial fue el principal factor de riesgo asociado. Se elaboró la estrategia de intervención según las necesidades psicoeducativas identificadas por los pacientes con la visión de especialistas consultados. Se constató que presentan carencia de habilidades para autocontrolar las reacciones emocionales posteriores al suceso cardiovascular. Conclusiones: La estrategia elaborada fue valorada satisfactoriamente por juicio de profesionales, indicándose la posibilidad de ser aplicada en los usuarios a los que está dirigida.


Introduction: comprehensive cardiovascular rehabilitation of patients with acute myocardial infarction is essential to achieve their physical and psychological well-being, and their reintegration into social life. Objective: to develop a psychoeducational intervention strategy to enhance comprehensive cardiovascular rehabilitation in patients convalescent from acute myocardial infarction, with the vision of consulted specialists. Methods: an observational, descriptive and cross-sectional study was carried out at "Dr. Celestino Hernández Robau" University Hospital, in Santa Clara, between October 2019 and January 2021. The sample consisted of 27 patients who come to the Cardiology consultation, and 7 specialists according to inclusion criteria. Medical history review, semi-structured interviews with patients and specialists, a survey on knowledge of the disease, an experiential self-report, and a lifestyle evaluation were the techniques applied. Descriptive statistics were used according to the measurement of the variables as well as content analysis and triangulation of the information. Results: a moderately sufficient knowledge of the disease prevailed in patients diagnosed with an unhealthy lifestyle; arterial hypertension was the main associated risk factor. The intervention strategy was developed according to the psychoeducational needs identified by the patients with the vision of the consulted specialists. We verified that they have a lack of abilities to self-control their emotional reactions after the cardiovascular event. Conclusions: the elaborated strategy was satisfactorily valued by professional judgment, which indicates the possibility of being applied to the users to whom it is directed.


Subject(s)
Cardiac Rehabilitation , Patient Care , Psychosocial Intervention , Myocardial Infarction
8.
J. Health NPEPS ; 8(1): e10656, jan - jun, 2023.
Article in Portuguese | ColecionaSUS, BDENF, LILACS | ID: biblio-1512665

ABSTRACT

Objetivo: identificar a incidência, fatores de risco e desfechos associados ao infarto agudo do miocárdio sem obstrução de artérias coronárias (myocardial infarction with nonobstructive coronary arteries ­ MINOCA). Método: estudo de coorte prospectivo em prontuários clínicos num hospital terciário do extremo Sul catarinense. Foram incluídos pacientes diagnosticados com infarto agudo do miocárdico (IAM) submetidos a estudo hemodinâmico nos anos de 2017 e 2018. Resultados: ao analisar 445 prontuários, observou-se a ocorrência de MINOCA em 28 pacientes (6,3%). Comparando o grupo MINOCA com o grupo IAM obstrutivo, os pacientes do grupo MINOCA eram mais jovens, com média de 54 anos (DP ± 14; p=0,007), tinham menor incidência de tabagismo (2 versus 156, p<0,001), hipertensão arterial (10 versus 242; p=0,002), menor tempo médio (dias) de internação hospitalar (5,79 ± 3,05 versus 7,49 ± 5,20; p= 0,02) e menos admissões em unidade de tratamento intensivo (5 versus 212; p=0,002). Conclusão: a incidência de MINOCA estimada dentre o total de IAM no Sul de Santa Catarina foi de 6,3% [IC 95]. Os pacientes do grupo MINOCA tiveram menor prevalência de comorbidades, melhor evolução intra-hospitalar e melhor desfecho.


Objective: to identify the incidence, risk factors and outcomes associated with myocardial infarction with nonobstructive coronary arteries (MINOCA). Method: it is a with prospective cohort study data collection from medical records data. Patients with acute myocardial infarction (AMI) that went through hemodynamic study in 2017 and 2018 were included. Results: when analyzing 445 medical records, the occurrence of MINOCA was observed in 28 patients (6.3%). Comparing the MINOCA group with the obstructive AMI group, patients in the MINOCA group were younger, with a mean age of 54 years (SD ± 14; p=0.007), had a lower incidence of smoking (2 versus 156, p<0.001), hypertension (10 versus 242; p=0.002), shorter mean length of hospital stay (days) (5.79 ± 3.05 versus 7.49 ± 5.20; p= 0.02) and fewer admissions to intensive care unit (5 versus 212; p=0.002). Conclusion: the estimated incidence of MINOCA among the total number of AMI in southern Santa Catarina was 6.3% [CI 95]. Patients in the MINOCA group had a lower prevalence of comorbidities, better in-hospital evolution and better outcome.


Subject(s)
Cardiovascular Diseases , Coronary Occlusion , Plaque, Atherosclerotic , Heart Disease Risk Factors , Myocardial Infarction
9.
Nursing (Ed. bras., Impr.) ; 26(300): 9616-9624, ju.2023. tab.
Article in English, Portuguese | LILACS, BDENF | ID: biblio-1443498

ABSTRACT

Objetivo: Identificar práticas clínicas com resultados favoráveis aos pacientes com diagnóstico de infarto agudo do miocárdio sem obstrução de artéria coronária. Método: Revisão integrativa da literatura pela base de dados National Library of Medicine e Biblioteca Virtual de Saúde de estudos publicados entre 2018 e 2022. Resultados:87,5% dos estudos encontrados destacaram estratégias farmacológicas e destes, 62,5% citaram o uso da dupla antiagregaçãoplaquetária como mais utilizada, apesar de nenhum estudo evidenciar benefícios. Os inibidores do sistema renina-angiotensina-aldosterona comprovaram benefícios em três estudos. 75% dos artigos apontaram que esse grupo de pacientes recebem menos medicamentos preventivos comparados aos pacientes com infarto por obstrução coronariana. Outros seis estudos, revelaram condução clínica variável desses pacientes. Conclusão: O uso de inibidores do sistema renina-angiotensina-aldosterona deve ser considerado por ser a única medicação com redução da mortalidade evidenciada. São necessários estudos maiores para orientar com mais segurança à condução do infarto do miocárdio sem obstrução de coronária.(AU)


Objective: To identify clinical practices with favorable results for patients diagnosed with acute myocardial infarction without coronary artery obstruction. Method: Integrative literature review using the National Library of Medicine and Virtual Health Library databases of studies published between 2018 and 2022. Results: 87.5% of the studies found highlighted pharmacological strategies and of these, 62.5% cited the use of dual antiplatelet therapy as the most used, despite no study showing benefits. Inhibitors of the renin-angiotensin-aldosterone system have shown benefits in three studies. 75% of the articles pointed out that this group of patients receive less preventive medication compared to patients with infarction due to coronary obstruction. Another six studies revealed variable clinical management of these patients. Conclusion: The use of renin-angiotensin-aldosterone system inhibitors should be considered as it is the only medication with proven reduction in mortality. Larger studies are needed to guide with more safety the management of myocardial infarction without coronary obstruction.(AU)


Objetivo: Identificar prácticas clínicas con resultados favorables para pacientes con diagnóstico de infarto agudo de miocardio sin obstrucción arterial coronaria. Método: revisión integrativa de la literatura utilizando las bases de datos de la Biblioteca Nacional de Medicina y la Biblioteca Virtual en Salud de estudios publicados entre 2018 y 2022. Resultados: el 87,5% de los estudios encontrados destacaron estrategias farmacológicas y de estos, el 62,5% citó el uso de la terapia antiplaquetaria dual como el más utilizados, a pesar de que ningún estudio muestra beneficios. Los inhibidores del sistema renina-angiotensina-aldosterona han mostrado beneficios en tres estudios. El 75% de los artículos señalaron que este grupo de pacientes recibe menos medicación preventiva en comparación con los pacientes con infarto por obstrucción coronaria. Otros seis estudios revelaron un manejo clínico variable de estos pacientes. Conclusión: Se debe considerar el uso de inhibidores del sistema renina-angiotensina-aldosterona, ya que es el único medicamento con reducción comprobada de la mortalidad. Son necesarios estudios más amplios que orienten con mayor seguridad el manejo del infarto de miocardio sin obstrucción coronaria.(AU)


Subject(s)
Therapeutics , Homeopathic Therapeutic Approaches , Clinical Decision-Making , MINOCA , Myocardial Infarction
10.
Medisan ; 27(2)abr. 2023. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1440578

ABSTRACT

Introducción: Aunque la incidencia general de infarto agudo de miocardio ha disminuido en muchos países desarrollados en las últimas décadas, aún genera números elevados de morbilidad y mortalidad en los de bajos ingresos; mostrando cifras mayores en tiempos de la pandemia por coronavirus. Objetivo: Caracterizar a pacientes con diagnóstico de infarto agudo de miocardio según variables clinicoepidemiológicas, ecocardiográficas y terapéuticas. Métodos: Se realizó una investigación descriptiva y retrospectiva, desde enero de 2018 hasta noviembre de 2022, de 263 pacientes con diagnóstico de infarto agudo de miocardio, atendidos en el Centro de Cardiología y Cirugía Cardiovascular de Santiago de Cuba. Entre las variables analizadas figuraron la edad, el sexo, la topografía del infarto, las complicaciones, las alteraciones ecocardiográficas y el tratamiento trombolítico. Resultados: En la serie predominaron el sexo masculino y el grupo etario menor o igual de 65 años. Se observó una mayor frecuencia del infarto en la topografía inferior (177, para 67,3 %); de estos afectados, 52,1 % tuvo complicaciones. Asimismo, la complicación de mayor frecuencia fue la fibrilación auricular paroxística, seguida del infarto de ventrículo derecho; mientras que la fracción de eyección menor de 45 %, el volumen de la aurícula izquierda y la motilidad parietal presentaron significación estadística. Conclusiones: Las características clinicoepidemiológicas, ecocardiográficas y terapéuticas de los pacientes con infarto agudo de miocardio en la provincia de Santiago de Cuba no difieren del contexto epidemiológico mundial.


Introduction: Although the general incidence of acute myocardial infarction has diminished in many developed countries in the last decades, it still generates high numbers of morbidity and mortality in those with low income; showing higher figures in times of coronavirus. Objective: To characterize patients with diagnosis of acute myocardial infarction according to clinical, epidemiological, echocardiographic and therapeutic variables. Methods: A descriptive and retrospective investigation was carried out from January, 2018 to November, 2022, of 835 patients with diagnosis of acute myocardial infarction, assisted in the Cardiology and Cardiovascular Surgery Center of Santiago de Cuba. Among the analyzed variables there were age, sex, topography of infarction, complications, echocardiographic disorders and thrombolytic treatment. Results: In the series there was a prevalence of the male sex and the 65 or less age group. A higher frequency of infarction in the lower topography (177, for 67.3 %) was observed; of these patients, 52.9 % had complications. Also, the complication of more frequency was the paroxysmal atrial fibrillation, followed by the infarction of the right ventricle; while the ejection fraction smaller than 45 %, the volume of the left auricle and the parietal motility presented statistical significance. Conclusions: Clinical, epidemiological, echocardiographic and therapeutic characteristics of patients with acute myocardial infarction in Santiago de Cuba province do not differ from the world epidemiological context.


Subject(s)
Echocardiography , Myocardial Infarction , Acute Coronary Syndrome
11.
Medicina (Ribeirao Preto, Online) ; 56(1)abr. 2023. ilus, tab
Article in Portuguese | LILACS | ID: biblio-1442404

ABSTRACT

Objetivo: Relatar a experiência e a percepção dos profissionais de enfermagem com a utilização de simulação in situnão anunciada de parada cardiorrespiratória (PCR) em ritmo de fibrilação ventricular no ambiente intra-hospitalar. Métodos: Manequim (Laerdal®) de alta fidelidade foi colocado no leito de isolamento de uma Unidade Coronariana que dispõe de central de monitoramento, sem o conhecimento dos profissionais de enfermagem que estavam assumindo o plantão. Um técnico de enfermagem do turno anterior de trabalho passou o caso como um paciente fictício recém-admitido com infarto agudo do miocárdio. Após a passagem do plantão, modificou-se o ritmo cardíaco do manequim de ritmo sinusal para fibrilação ventricular. Registrou-se o tempo (em minutos e segundos) desde a modificação do ritmo até algum profissional da enfermagem desencadear uma ação efetiva relacionada ao fato. Após o profissional perceber que se tratava de um manequim, ele foi orientado a desencadear as intervenções adequadas como se fosse um paciente real. Após o final da simulação, um questionário para avaliação da percepção desses profissionais em relação à atividade foi aplicado. Resultado: Quinze profissionais participaram da simulação in situ. O tempo para reação foi 28 segundos no turno diurno, dois minutos e seis segundos no turno vespertino e quatro minutos e três segundos no período noturno. Todos profissionais (100%) reconheceram a importância do treinamento, todos (100%) acharam que este treinamento aumenta a segurança do profissional e do paciente, a maioria (90%) achou que pode melhorar a comunicação entre a equipe, e todos (100%) acharam que atividades como esta deveriam ser repetidas. Conclusão: A simulação in situ parece ser uma alternativa viável para o treinamento dos profissionais de enfermagem no atendimento inicial da PCR em um hospital de emergência brasileiro. Esta atividade foi avaliada positivamente pelos participantes (AU).


Objective: Report the experience and perception of nursing professionals with an unannounced in-situ simulation of cardiopulmonary arrest (CPA) in ventricular fibrillation in an in-hospital environment. Methods: A high-fidelity mannequin (Laerdal®) was placed on the isolation bed of a Coronary Care Unit with a monitoring center without the knowledge of the nursing professionals taking over the shift. A nurse technician from the previous shift was told to report the case as a fictitious newly admitted patient with acute myocardial infarction. After the care transition, the cardiac rhythm was changed from sinus rhythm to ventricular fibrillation. The time was recorded (in minutes and seconds) from the onset of ventricular fibrillation until a nursing professional triggered an effective action. After the professionals realized it was a mannequin, they were instructed to initiate the appropriate interventions as if the mannequin were an actual patient. After the end of the simulation, a questionnaire was used to assess the professionals' perception of the activity. Results: Fifteen professionals participated in this in-situ simulation. The reaction time was 28 seconds on the morning shift, two minutes and six seconds on the afternoon shift, and four minutes and three seconds on the night shift. All professionals (100%) recognized the importance of this training, and all thought it increased professional and patient safety. Most participants (90%) thought it could improve communication among the team. All professionals (100%) felt that such activities should be repeated. Conclusion: In-situ simulation is a feasible alternative to train nursing professionals in the initial CPA management in a Brazilian emergency hospital. Participants positively evaluated this activity (AU).


Subject(s)
Humans , Ventricular Fibrillation , Health Education , Myocardial Infarction/therapy
12.
Rev. enferm. Inst. Mex. Seguro Soc ; 31(2): 51-56, 10-abr-2023. tab
Article in Spanish | LILACS, BDENF | ID: biblio-1518760

ABSTRACT

Introducción: la cardiopatía isquémica fue la primera causa de muerte en México en el año 2020. Su prevalencia aumenta con la edad y es superior en los hombres que en las mujeres; se presenta mayormente en forma de infarto en edades entre 45 y 94 años. Objetivo: describir el caso de un paciente sometido a revascularización aorto-coronaria por cardiopatía isquémica con enfoque del proceso de atención de enfermería (PAE). Metodología: estudio de caso observacional y descriptivo con aplicación del PAE en el perioperatorio de un hombre de 50 años con cardiopatía isquémica crónica, enfermedad multivascular e hipertensión sistémica controlada de 6 años desde que inició, en un hospital público de tercer nivel en Mérida, Yucatán, México. Resultados: se demostró que si se aplica el PAE hay menor riesgo de shock hipovolémico ocasionado por sangrado activo y disminución de riesgo de infección del sitio de herida quirúrgica, evidenciado por el procedimiento quirúrgico extenso. Conclusiones: la metodología del PAE como método científico facilita innovaciones dentro de los cuidados enfermeros, además de las diferentes alternativas en las acciones a seguir para el tratamiento del paciente quirúrgico cardiovascular. También proporciona un método informativo para la atención de cuidados, desarrolla una autonomía para la enfermería y fomenta la consideración como profesional de salud.


Introduction: Ischemic heart disease was the leading cause of death in Mexico in 2020. Its prevalence increases with age and it is higher in men than in women; it is presented mostly as a heart attack between the ages of 45 and 94 years. Objective: To describe the case of a patient undergoing aorto-coronary revascularization for ischemic heart disease with a nursing care process (NCP) approach. Methodology: Observational and descriptive case study with application of NCP in the perioperative period of a 50-year-old man with chronic ischemic heart disease, multivessel disease and controlled systemic hypertension of 6 years since its onset, in a third level public hospital in Merida, Yucatan, Mexico. Results: It was demonstrated that by applying NCP there is a lower risk of hypovolemic shock caused by active bleeding and decreased risk of surgical wound site infection, evidenced by the extensive surgical procedure. Conclusions: The NCP methodology as a scientific method facilitates innovations within nursing care, in addition to the different alternatives in the actions to follow for the treatment of the cardiovascular surgical patient. It also provides an informative method for care, develops autonomy for nursing and promotes consideration as a health professional.


Subject(s)
Humans , Male , Middle Aged , Myocardial Ischemia/etiology , Myocardial Infarction/etiology
13.
Nursing (Ed. bras., Impr.) ; 26(298): 9475-9478, mar.2023. tab
Article in English, Portuguese | LILACS, BDENF | ID: biblio-1427609

ABSTRACT

Objetivo: descrever a impotância de uma detecção precoce do Infarto Agudo do Miocárdio (IAM) por meio da equipe multidisciplinar de saúde e expor se o tempo interfere ou não na piora da lesão miocárdica. Método:Trata-se de uma revisão integrativa da literatura com artigos de 2015 e 2020. As bases utilizadas foram LILACS, MEDLINE, SCIELO, BDEFN e Google Acadêmico. Resulatdos: O tempo porta-balão <90 minutos é eficiente no manejo do paciente com IAM, pois quanto mais rápido atendimento melhor o prognóstico, mas ainda existem muitas dificuldades na realização desse manejo, pois muitos sintomas não são detectados precocemente, a busca pelo atendimento é demorada e as instituições não seguem os protocolos corretamente. Conclusão: Diante deste cenário a telemedicina surge como um aliado no prevenção, diagnóstico e tratamento e principalmente o menor tempo para o atendimento, pois trará mais saúde para o miocárdio e consequentemente para o paciente.(AU)


Objetivo: describir la importancia de la detección precoz del Infarto Agudo de Miocardio (IAM) a través del equipo multidisciplinario de salud y exponer si el tiempo interfiere o no en el empeoramiento de la lesión miocárdica. Método: Se trata de una revisión integrativa de la literatura con artículos de 2015 y 2020. Las bases de datos utilizadas fueron LILACS, MEDLINE, SCIELO, BDEFN y Google Scholar. Resultados: El tiempo puerta-balón < 90 minutos es eficiente en el manejo de los pacientes con IAM, pues cuanto más rápido el tratamiento, mejor el pronóstico, pero aún existen muchas dificultades para realizar este manejo, ya que muchos síntomas no se resuelven. detectada a tiempo, la búsqueda de atención lleva mucho tiempo y las instituciones no siguen correctamente los protocolos. Conclusión: Ante este escenario, la telemedicina surge como un aliado en la prevención, diagnóstico y tratamiento y sobre todo en el menor tiempo de atención, ya que traerá más salud al miocardio y consecuentemente al paciente.(AU)


Objective: to describe the importance of an early detection of Acute Myocardial Infarction (AMI) through the multidisciplinary health team and expose whether or not time interferes in the worsening of the myocardial injury. Method: This is an integrative literature review with articles from 2015 and 2020. The databases used were LILACS, MEDLINE, SCIELO, BDEFN and Google Scholar. Results: The door- to-balloon time <90 minutes is efficient in the management of patients with AMI, because the faster the treatment, the better the prognosis, but there are still many difficulties in carrying out this management, since many symptoms are not detected early, the search for care it is time consuming and institutions do not follow protocols correctly. Conclusion: Given this scenario, telemedicine emerges as an ally in prevention, diagnosis and treatment and especially the shortest time for care, as it will bring more health to the myocardium and consequently to the patient.(AU)


Subject(s)
Cardiovascular Diseases , Diagnosis , Myocardial Infarction
14.
Online braz. j. nurs. (Online) ; 22: e20236639, 01 jan 2023. tab
Article in English, Portuguese | LILACS, BDENF | ID: biblio-1442731

ABSTRACT

OBJETIVO: Comparar o atendimento de infartados submetidos à angioplastia antes e durante a pandemia da COVID-19. MÉTODO: Pesquisa transversal, de abordagem retrospectiva, com 498 pacientes, por meio de prontuários eletrônicos e físicos, referente a atendimentos antes e durante a pandemia, no serviço de hemodinâmica de hospital de referência para doenças cardiovasculares. Dados analisados por estatística descritiva e inferencial. RESULTADOS: Em 2019, pré-pandemia, realizaram-se 157 procedimentos de intervenção coronária percutânea. Em 2020, início da pandemia, 166 procedimentos, aumento de 5,73%. Em 2021, ocorreram 175 procedimentos, acréscimo de 11,46% em comparação a 2019. CONCLUSÃO: Houve aumento no número de procedimentos de ATC, em 11,46% de 2019 a 2021, com consequente elevação da assistência de enfermagem e multiprofissional durante a pandemia da COVID-19.


OBJECTIVE: To compare the care provided to infarcted patients submitted to angioplasty before and during the COVID-19 pandemic. METHOD: Cross-sectional research, with a retrospective approach, conducted with 498 patients through the assessment of electronic and physical medical records, referring to care provided before and during the pandemic in the hemodynamics clinic of a reference hospital for cardiovascular diseases. Descriptive and inferential statistics were used. RESULTS: In 2019, pre-pandemic period, 157 percutaneous coronary angioplasties were performed. In 2020, at the pandemic's beginning, 166 procedures were performed ­ an increase of 5.73%. In 2021, there were 175 procedures ­an increase of 11.46% compared to 2019. CONCLUSION: There was an increase in percutaneous coronary angioplasties by 11.46% from 2019 to 2021, with a consequent increase in nursing and multidisciplinary care during the COVID-19 pandemic.


Subject(s)
Humans , Male , Female , Middle Aged , Angioplasty , COVID-19 , Myocardial Infarction/therapy , Cross-Sectional Studies , Retrospective Studies , Heart Disease Risk Factors
15.
Chinese journal of integrative medicine ; (12): 1059-1065, 2023.
Article in English | WPRIM | ID: wpr-1010317

ABSTRACT

BACKGROUND@#Ventricular remodeling after acute anterior wall ST-segment elevation myocardial infarction (AAMI) is an important factor in occurrence of heart failure which additionally results in poor prognosis. Therefore, the treatment of ventricular remodeling needs to be further optimized. Compound Danshen Dripping Pills (CDDP), a traditional Chinese medicine, exerts a protective effect on microcirculatory disturbance caused by ischemia-reperfusion injury and attenuates ventricular remodeling after myocardial infarction.@*OBJECTIVE@#This study is designed to evaluate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function after AAMI on a larger scale.@*METHODS@#This study is a multi-center, randomized, double-blind, placebo-controlled, parallel-group clinical trial. The total of 268 patients with AAMI after primary percutaneous coronary intervention (pPCI) will be randomly assigned 1:1 to the CDDP group (n=134) and control group (n=134) with a follow-up of 48 weeks. Both groups will be treated with standard therapy of ST-segment elevation myocardial infarction (STEMI), with the CDDP group administrating 20 tablets of CDDP before pPCI and 10 tablets 3 times daily after pPCI, and the control group treated with a placebo simultaneously. The primary endpoint is 48-week echocardiographic outcomes including left ventricular ejection fraction (LVEF), left ventricular end-diastolic volume index (LVEDVI), and left ventricular end-systolic volume index (LVESVI). The secondary endpoint includes the change in N terminal pro-B-type natriuretic peptide (NT-proBNP) level, arrhythmias, and cardiovascular events (death, cardiac arrest, or cardiopulmonary resuscitation, rehospitalization due to heart failure or angina pectoris, deterioration of cardiac function, and stroke). Investigators and patients are both blinded to the allocated treatment.@*DISCUSSION@#This prospective study will investigate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function in patients undergoing pPCI for a first AAMI. Patients in the CDDP group will be compared with those in the control group. If certified to be effective, CDDP treatment in AAMI will probably be advised on a larger scale. (Trial registration No. NCT05000411).


Subject(s)
Humans , ST Elevation Myocardial Infarction/therapy , Stroke Volume , Ventricular Remodeling , Prospective Studies , Microcirculation , Ventricular Function, Left , Myocardial Infarction/etiology , Treatment Outcome , Percutaneous Coronary Intervention/adverse effects , Heart Failure/drug therapy , Drugs, Chinese Herbal/therapeutic use , Randomized Controlled Trials as Topic , Multicenter Studies as Topic
16.
Chinese journal of integrative medicine ; (12): 1066-1076, 2023.
Article in English | WPRIM | ID: wpr-1010314

ABSTRACT

OBJECTIVE@#To explore the protective effect of Huoxin Pill (HXP) on acute myocardial ischemia-reperfusion (MIRI) injury in rats.@*METHODS@#Seventy-five adult SD rats were divided into the sham-operated group, model group, positive drug group (diltiazem hydrochloride, DH), high dose group (24 mg/kg, HXP-H) and low dose group (12 mg/kg, HXP-L) of Huoxin Pill (n=15 for every group) according to the complete randomization method. After 1 week of intragastric administration, the left anterior descending coronary artery of the rat's heart was ligated for 45 min and reperfused for 3 h. Serum was separated and the levels of creatine kinase (CK), creatine kinase isoenzyme (CK-MB) and lactate dehydrogenase (LDH), superoxide dismutase (SOD), and malondialdehyde (MDA), hypersensitive C-reactive protein (hs-CRP) and interleukin-1β (IL-1β) were measured. Myocardial ischemia rate, myocardial infarction rate and myocardial no-reflow rate were determined by staining with Evans blue and 2,3,5-triphenyltetrazolium chloride (TTC). Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and Bioinformatics Analysis Tool for Molecular mechANism of Traditional Chinese Medicine (BATMAN) databases were used to screen for possible active compounds of HXP and their potential therapeutic targets; the results of anti-inflammatory genes associated with MIRI were obtained from GeneCards, Drugbank, Online Mendelian Inheritance in Man (OMIM), and Therapeutic Target Datebase (TTD) databases was performed; Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment were used to analyze the intersected targets; molecular docking was performed using AutoDock Tools. Western blot was used to detect the protein expression of Toll-like receptor 4 (TLR4)/nuclear factor kappa-B (NFκB)/NOD-like receptor protein 3 (NLRP3).@*RESULTS@#Compared with the model group, all doses of HXP significantly reduced the levels of LDH, CK and CK-MB (P<0.05, P<0.01); HXP significantly increased serum activity of SOD (P<0.05, P<0.01); all doses of HXP significantly reduced the levels of hs-CRP and IL-1β (P<0.05, P<0.01) and the myocardial infarction rate and myocardial no-reflow rate (P<0.01). GO enrichment analysis mainly involved positive regulation of gene expression, extracellular space and identical protein binding, KEGG pathway enrichment mainly involved PI3K-Akt signaling pathway and lipid and atherosclerosis. Molecular docking results showed that kaempferol and luteolin had a better affinity with TLR4, NFκB and NLRP3 molecules. The protein expressions of TLR4, NFκB and NLRP3 were reduced in the HXP group (P<0.01).@*CONCLUSIONS@#HXP has a significant protective effect on myocardial ischemia-reperfusion injury in rats, and its effect may be related to the inhibition of redox response and reduction of the inflammatory response by inhibiting the TLR4NFκB/NLRP3 signaling pathway.


Subject(s)
Humans , Rats , Animals , NF-kappa B/metabolism , Myocardial Reperfusion Injury/drug therapy , NLR Family, Pyrin Domain-Containing 3 Protein , Rats, Sprague-Dawley , C-Reactive Protein , Toll-Like Receptor 4 , Phosphatidylinositol 3-Kinases/metabolism , Molecular Docking Simulation , Signal Transduction , Myocardial Infarction/drug therapy , Creatine Kinase , L-Lactate Dehydrogenase/metabolism , Superoxide Dismutase/metabolism
17.
Chinese journal of integrative medicine ; (12): 1099-1110, 2023.
Article in English | WPRIM | ID: wpr-1010309

ABSTRACT

OBJECTIVE@#To investigate the involvement of endothelial cells (ECs)-derived exosomes in the anti-apoptotic effect of Danhong Injection (DHI) and the mechanism of DHI-induced exosomal protection against postinfarction myocardial apoptosis.@*METHODS@#A mouse permanent myocardial infarction (MI) model was established, followed by a 14-day daily treatment with DHI, DHI plus GW4869 (an exosomal inhibitor), or saline. Phosphate-buffered saline (PBS)-induced ECs-derived exosomes were isolated, analyzed by miRNA microarray and validated by droplet digital polymerase chain reaction (ddPCR). The exosomes induced by DHI (DHI-exo), PBS (PBS-exo), or DHI+GW4869 (GW-exo) were isolated and injected into the peri-infarct zone following MI. The protective effects of DHI and DHI-exo on MI hearts were measured by echocardiography, Masson's trichrome staining, and TUNEL apoptosis assay. The Western blotting and quantitative reverse transcription PCR (qRT-PCR) were used to evaluate the expression levels of miR-125b/p53-mediated pathway components, including miR-125b, p53, Bak, Bax, and caspase-3 activities.@*RESULTS@#DHI significantly improved cardiac function and reduced infarct size in MI mice (P<0.01), which was abolished by the GW4869 intervention. DHI promoted the exosomal secretion in ECs (P<0.01). According to the results of exosomal miRNA microarray assay, 30 differentially expressed miRNAs in the DHI-exo were identified (28 up-regulated miRNAs and 2 down-regulated miRNAs). Among them, DHI significantly elevated miR-125b level in DHI-exo and DHI-treated ECs, a recognized apoptotic inhibitor impeding p53 signaling (P<0.05). Remarkably, treatment with DHI and DHI-exo attenuated apoptosis, elevated miR-125b expression level, inhibited capsase-3 activity, and down-regulated the expression levels of proapoptotic effectors (p53, Bak, and Bax) in post-MI hearts, whereas these effects were blocked by GW4869 (P<0.05 or P<0.01).@*CONCLUSION@#DHI and DHI-induced exosomes inhibited apoptosis, promoted the miR-125b expression level, and regulated the p53 apoptotic pathway in post-infarction myocardium.


Subject(s)
Mice , Animals , Tumor Suppressor Protein p53/metabolism , Endothelial Cells/metabolism , Exosomes/metabolism , bcl-2-Associated X Protein/metabolism , Myocardium/metabolism , Myocardial Infarction/drug therapy , Apoptosis , MicroRNAs/metabolism
18.
Acta Physiologica Sinica ; (6): 36-48, 2023.
Article in English | WPRIM | ID: wpr-970104

ABSTRACT

Myocardial infarction (MI) is one of the leading causes of death in the world. With the improvement of clinical therapy, the mortality of acute MI has been significantly reduced. However, as for the long-term impact of MI on cardiac remodeling and cardiac function, there is no effective prevention and treatment measures. Erythropoietin (EPO), a glycoprotein cytokine essential to hematopoiesis, has anti-apoptotic and pro-angiogenetic effects. Studies have shown that EPO plays a protective role in cardiomyocytes in cardiovascular diseases, such as cardiac ischemia injury and heart failure. EPO has been demonstrated to protect ischemic myocardium and improve MI repair by promoting the activation of cardiac progenitor cells (CPCs). This study aimed to investigate whether EPO can promote MI repair by enhancing the activity of stem cell antigen 1 positive stem cells (Sca-1+ SCs). Darbepoetin alpha (a long-acting EPO analog, EPOanlg) was injected into the border zone of MI in adult mice. Infarct size, cardiac remodeling and performance, cardiomyocyte apoptosis and microvessel density were measured. Lin- Sca-1+ SCs were isolated from neonatal and adult mouse hearts by magnetic sorting technology, and were used to identify the colony forming ability and the effect of EPO, respectively. The results showed that, compared to MI alone, EPOanlg reduced the infarct percentage, cardiomyocyte apoptosis ratio and left ventricular (LV) chamber dilatation, improved cardiac performance, and increased the numbers of coronary microvessels in vivo. In vitro, EPO increased the proliferation, migration and clone formation of Lin- Sca-1+ SCs likely via the EPO receptor and downstream STAT-5/p38 MAPK signaling pathways. These results suggest that EPO participates in the repair process of MI by activating Sca-1+ SCs.


Subject(s)
Animals , Mice , Ventricular Remodeling , Erythropoietin , Myocardial Infarction , Heart , Stem Cells
19.
Chinese Medical Journal ; (24): 322-330, 2023.
Article in English | WPRIM | ID: wpr-970070

ABSTRACT

BACKGROUND@#There are few data comparing clinical outcomes of complex percutaneous coronary intervention (CPCI) when using biodegradable polymer drug-eluting stents (BP-DES) or second-generation durable polymer drug-eluting stents (DP-DES). The purpose of this study was to investigate the safety and efficacy of BP-DES and compare that with DP-DES in patients with and without CPCI during a 5-year follow-up.@*METHODS@#Patients who exclusively underwent BP-DES or DP-DES implantation in 2013 at Fuwai Hospital were consecutively enrolled and stratified into two categories based on CPCI presence or absence. CPCI included at least one of the following features: unprotected left main lesion, ≥2 lesions treated, ≥2 stents implanted, total stent length >40 mm, moderate-to-severe calcified lesion, chronic total occlusion, or bifurcated target lesion. The primary endpoint was major adverse cardiac events (MACE) including all-cause death, recurrent myocardial infarction, and total coronary revascularization (target lesion revascularization, target vessel revascularization [TVR], and non-TVR) during the 5-year follow-up. The secondary endpoint was total coronary revascularization.@*RESULTS@#Among the 7712 patients included, 4882 (63.3%) underwent CPCI. Compared with non-CPCI patients, CPCI patients had higher 2- and 5-year incidences of MACE and total coronary revascularization. Following multivariable adjustment including stent type, CPCI was an independent predictor of MACE (adjusted hazard ratio [aHR]: 1.151; 95% confidence interval [CI]: 1.017-1.303, P  = 0.026) and total coronary revascularization (aHR: 1.199; 95% CI: 1.037-1.388, P  = 0.014) at 5 years. The results were consistent at the 2-year endpoints. In patients with CPCI, BP-DES use was associated with significantly higher MACE rates at 5 years (aHR: 1.256; 95% CI: 1.078-1.462, P  = 0.003) and total coronary revascularization (aHR: 1.257; 95% CI: 1.052-1.502, P  = 0.012) compared with that of DP-DES, but there was a similar risk at 2 years. However, BP-DES had comparable safety and efficacy profiles including MACE and total coronary revascularization compared with DP-DES in patients with non-CPCI at 2 and 5 years.@*CONCLUSIONS@#Patients underwent CPCI remained at a higher risk of mid- to long-term adverse events regardless of the stent type. The effect of BP-DES compared with DP-DES on outcomes was similar in CPCI and non-CPCI patients at 2 years but had inconsistent effects at the 5-year clinical endpoints.


Subject(s)
Humans , Drug-Eluting Stents/adverse effects , Myocardial Infarction/complications , Polymers/therapeutic use , Treatment Outcome , Coronary Artery Disease/complications , Percutaneous Coronary Intervention/adverse effects , Absorbable Implants , Prosthesis Design
20.
Chinese Medical Journal ; (24): 82-87, 2023.
Article in English | WPRIM | ID: wpr-970043

ABSTRACT

BACKGROUND@#Preliminary studies have indicated that Shexiang Baoxin Pill (MUSKARDIA) has a coronary artery dilation effect and increases the coronary blood flow, relieving the symptoms of angina. This study aimed to evaluate the benefit of MUSKARDIA on patients with stable coronary artery disease (CAD) and diabetes mellitus (DM).@*METHODS@#This was a subgroup analysis of a multicenter, randomized, placebo-controlled phase IV trial. CAD patients with a medical history of DM or baseline fasting blood glucose (FBG) ≥7.0 mmol/L were grouped according to the treatment (standard therapy plus MUSKARDIA or placebo). The primary outcome was major adverse cardiovascular events (MACEs), which was the composite outcome of cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke. The secondary outcome was the composite outcome of all-cause death, non-fatal myocardial infarction, non-fatal stroke, hospitalization for unstable angina or heart failure, and coronary angioplasty.@*RESULTS@#MACEs occurred in 2.6% (9/340) and 4.8% (18/376) of patients in the MUSKARDIA and placebo groups, respectively ( P  = 0.192). Secondary composite outcome was significantly less frequent with MUSKARDIA than with placebo (15.3% [52/340] vs . 22.6% [85/376], P  = 0.017). Risk of MACEs (hazard ratio [HR] = 0.69, 95% confidence interval [CI]: 0.31-1.57) was comparable between two groups. In patients with uncontrolled DM (≥4 measurements of FBG ≥7 mmol/L in five times of follow-up), the risk of secondary outcome was significantly lower with MUSKARDIA (5/83, 6.0%) than with placebo (15/91, 16.5%) (HR = 0.35, 95%CI: 0.13-0.95).@*CONCLUSION@#As an add-on to standard therapy, MUSKARDIA shows a trend of reduced MACEs in patients with stable CAD and DM. Furthermore, MUSKARDIA may reduce the frequency of all-cause death, hospitalization, and coronary angioplasty in this population, especially in those with uncontrolled DM.@*TRIAL REGISTRATION@#ChiCTR.org.cn, ChiCTR-TRC-12003513.


Subject(s)
Humans , Coronary Artery Disease/complications , Diabetes Mellitus, Type 2/drug therapy , Myocardial Infarction/complications , Stroke/epidemiology
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