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1.
Crit Care ; 26(1): 393, 2022 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-36539907

RESUMO

BACKGROUND: Epinephrine is routinely utilized in cardiac arrest; however, it is unclear if the route of administration affects outcomes in acute myocardial infarction patients with cardiac arrest. OBJECTIVES: To compare the efficacy of epinephrine administered via the peripheral intravenous (IV), central IV, and intracoronary (IC) routes. METHODS: Prospective two-center pilot cohort study of acute myocardial infarction patients who suffered cardiac arrest in the cardiac catheterization laboratory during percutaneous coronary intervention. We compared the outcomes of patients who received epinephrine via peripheral IV, central IV, or IC. RESULTS: 158 participants were enrolled, 48 (30.4%), 50 (31.6%), and 60 (38.0%) in the central IV, IC, and peripheral IV arms, respectively. Peripheral IV epinephrine administration route was associated with lower odds of achieving return of spontaneous circulation (ROSC, odds ratio = 0.14, 95% confidence interval = 0.05-0.36, p < 0.0001) compared with central IV and IC administration. (There was no difference between central IV and IC routes; p = 0.9343.) The odds of stent thrombosis were significantly higher with the IC route (IC vs. peripheral IV OR = 4.6, 95% CI = 1.5-14.3, p = 0.0094; IC vs. central IV OR = 6.0, 95% CI = 1.9-19.2, p = 0.0025). Post-ROSC neurologic outcomes were better for central IV and IC routes when compared with peripheral IV. CONCLUSION: Epinephrine administration via central IV and IC routes was associated with a higher rate of ROSC and better neurologic outcomes compared with peripheral IV administration. IC administration was associated with a higher risk of stent thrombosis. Trial registration This trial is registered at NCT05253937 .


Assuntos
Reanimação Cardiopulmonar , Parada Cardíaca , Humanos , Estudos Prospectivos , Projetos Piloto , Epinefrina/farmacologia , Epinefrina/uso terapêutico , Parada Cardíaca/tratamento farmacológico
2.
Scand Cardiovasc J ; 56(1): 56-64, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35481408

RESUMO

Objective. To compare the long-term (5 year) prognostic values of commonly used risk scores on major adverse cardiovascular events (MACE) in a cohort of patients who underwent primary PCI for STEMI. Design. We created a composite endpoint of MACE, defined as the occurrence of any of the following events within 5 years: ischemic or hemorrhagic stroke, target vessel revascularization, nonfatal myocardial infarction, cardiovascular death. We dichotomized risk scores into high risk and not high risk according to the literature's pre-existing cutoffs as follows: GRACE score >127 = high risk, SYNTAX I score ≥33 = high risk, SYNTAX II ≥32 high risk, TIMI >8 = high risk. We utilized the area under the receiver operating characteristic curve (AUC) as the metric for predictive ability. Results. There were 768 patients in this study and 416 (54.2%), 209 (27.2%), 511 (66.5%), and 74 (9.6%) were at high risk according to the GRACE, SYNTAX I, SYNTAX II, and TIMI scores, respectively. The AUCs for 5-year MACE were 0.54 (95% confidence interval (CI): 0.49-0.59, p = .0947), 0.79 (95% CI: 0.75-0.83, p < .0001), 0.58 (95% CI: 0.54-0.62, p = .0004), and 0.5 (95% CI: 0.48-0.53, p = .7259), respectively. Conclusion. SYNTAX I score was superior in predicting MACE in patients with STEMI and a high burden of CAD. Utilizing the basal SYNTAX I score in STEMI patients with significant non-culprit CAD may improve risk stratification, decision-making, and outcomes.


Assuntos
Infarto do Miocárdio , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Infarto do Miocárdio/diagnóstico , Intervenção Coronária Percutânea/efeitos adversos , Medição de Risco/métodos , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico por imagem , Infarto do Miocárdio com Supradesnível do Segmento ST/terapia
3.
Heart Fail Rev ; 26(4): 973-979, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33405001

RESUMO

Observational studies suggest that a heart failure (HF) diagnosis carries a poor prognosis in subjects with severe SARS-CoV2 (COVID-19) infection, but it is unknown whether this association reflects direct myocardial damage due to COVID-19 or the consequence of preexisting cardiac defects and related cardiovascular disease (CVD) risk burden. Although the close relation between CVD and COVID-19 outcomes is well established, contrasting data exists about the occurrence of HF complications during COVID-19 infection. Therefore, a specific algorithm focused on diagnostic differentiation in acute patients distinguishing between acute HF and acute respiratory distress syndrome related to COVID-19 is needed. Further, several concerns exist for the management of patients with an uncertain diagnosis and acute dyspnea, the exact relationship existing between COVID-19 and HF. Therefore, the treatment for subjects with both COVID-19 and HF and which criteria may be defined for domiciliary or hospital management, remain poorly defined. Herein, we describe practices to be adopted in order to address these concerns and avoid further virus spread among patients, l and their familiars involved in such patients' care.


Assuntos
COVID-19/diagnóstico , COVID-19/terapia , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/terapia , Teste para COVID-19 , Gerenciamento Clínico , Dispneia/etiologia , Hospitalização , Humanos , Miocárdio/patologia
4.
Rev Cardiovasc Med ; 21(3): 315-319, 2020 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-33070537

RESUMO

Great attention has been paid to endothelial dysfunction (ED) in coronavirus disease 2019 (COVID-19). There is growing evidence to suggest that the angiotensin converting enzyme 2 receptor (ACE2 receptor) is expressed on endothelial cells (ECs) in the lung, heart, kidney, and intestine, particularly in systemic vessels (small and large arteries, veins, venules, and capillaries). Upon viral infection of ECs by severe acute respiratory syndrome coronarvirus 2 (SARS-CoV-2), ECs become activated and dysfunctional. As a result of endothelial activation and ED, the levels of pro-inflammatory cytokines (interleukin -1, interleukin-6 (IL-6), and tumor necrosis factor-α), chemokines (monocyte chemoattractant protein-1), von Willebrand factor (vWF) antigen, vWF activity, and factor VIII are elevated. Higher levels of acute phase reactants (IL-6, C-reactive protein, and D-dimer) are also associated with SARS-CoV-2 infection. Therefore, it is reasonable to assume that ED contributes to COVID-19-associated vascular inflammation, particularly endotheliitis, in the lung, heart, and kidney, as well as COVID-19-associated coagulopathy, particularly pulmonary fibrinous microthrombi in the alveolar capillaries. Here we present an update on ED-relevant vasculopathy in COVID-19. Further research for ED in COVID-19 patients is warranted to understand therapeutic opportunities.


Assuntos
Betacoronavirus , Transtornos da Coagulação Sanguínea/etiologia , Infecções por Coronavirus/complicações , Endotélio Vascular/fisiopatologia , Pneumonia Viral/complicações , Doenças Vasculares/etiologia , Vasodilatação/fisiologia , Transtornos da Coagulação Sanguínea/fisiopatologia , COVID-19 , Infecções por Coronavirus/epidemiologia , Humanos , Inflamação/etiologia , Inflamação/fisiopatologia , Pandemias , Pneumonia Viral/epidemiologia , SARS-CoV-2 , Doenças Vasculares/fisiopatologia
5.
Rev Cardiovasc Med ; 21(3): 339-344, 2020 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-33070539

RESUMO

There is emerging evidence to suggest that vitamin D deficiency is associated with adverse outcomes in COVID-19 patients. Conversely, vitamin D supplementation protects against an initial alveolar diffuse damage of COVID-19 becoming progressively worse. The mechanisms by which vitamin D deficiency exacerbates COVID-19 pneumonia remain poorly understood. In this review we describe the rationale of the putative role of endothelial dysfunction in this event. Herein, we will briefly review (1) anti-inflammatory and anti-thrombotic effects of vitamin D, (2) vitamin D receptor and vitamin D receptor ligand, (3) protective role of vitamin D against endothelial dysfunction, (4) risk of vitamin D deficiency, (5) vitamin D deficiency in association with endothelial dysfunction, (6) the characteristics of vitamin D relevant to COVID-19, (7) the role of vitamin D on innate and adaptive response, (8) biomarkers of endothelial cell activation contributing to cytokine storm, and (9) the bidirectional relationship between inflammation and homeostasis. Finally, we hypothesize that endothelial dysfunction relevant to vitamin D deficiency results from decreased binding of the vitamin D receptor with its ligand on the vascular endothelium and that it may be immune-mediated via increased interferon 1 α. A possible sequence of events may be described as (1) angiotensin II converting enzyme-related initial endothelial injury followed by vitamin D receptor-related endothelial dysfunction, (2) endothelial lesions deteriorating to endothelialitis, coagulopathy and thrombosis, and (3) vascular damage exacerbating pulmonary pathology and making patients with vitamin D deficiency vulnerable to death.


Assuntos
Betacoronavirus , Infecções por Coronavirus/epidemiologia , Endotélio Vascular/fisiopatologia , Pneumonia Viral/epidemiologia , Vasodilatação/fisiologia , Deficiência de Vitamina D/epidemiologia , COVID-19 , Comorbidade , Infecções por Coronavirus/fisiopatologia , Humanos , Pandemias , Pneumonia Viral/fisiopatologia , SARS-CoV-2 , Deficiência de Vitamina D/fisiopatologia
6.
Cardiovasc Diabetol ; 18(1): 99, 2019 08 05.
Artigo em Inglês | MEDLINE | ID: mdl-31382965

RESUMO

BACKGROUND: To summarize the four recent sodium-glucose cotransporter 2 inhibitor (SGLT2i) trials: Dapagliflozin Effect on CardiovascuLAR Events (DECLARE-TIMI 58), CANagliflozin CardioVascular Assessment Study (CANVAS) Program, Empagliflozin Cardiovascular Outcome Event Trial in Type 2 Diabetes Mellitus Patients-Removing Excess Glucose (EMPA-REG OUTCOME), Canagliflozin and Renal Events in Diabetes with Established Nephropathy Clinical Evaluation (CREDENCE), and explore the potential determinants for their cardiovascular, renal, and safety outcomes. RESULTS: The composite renal outcome event rates per 1000 patient-years for drug and placebo, as well as the corresponding relative risk reductions, were 3.7, 7.0, 47%; 5.5, 9.0, 40%; 6.3, 11.5, 46%; 43.2, 61.2, 30% for DECLARE-TIMI 58, CANVAS, EMPA-REG OUTCOME, and CREDENCE, respectively (event definitions varied across trials). The major adverse cardiovascular (CV) event rates per 1000 patient-years for drug and placebo, as well as the corresponding relative risk reductions, were 22.6, 24.2, 7%; 26.9, 31.5, 14%; 37.4, 43.9, 14%; 38.7, 48.7, 20% for DECLARE-TIMI 58, CANVAS, EMPA-REG OUTCOME, and CREDENCE, respectively. DECLARE-TIMI 58 had the fewest cardiorenal events and CREDENCE the most. These differences were presumably due to varying inclusion criteria resulting in DECLARE-TIMI 58 having the best baseline renal filtration function and CREDENCE the worst (mean estimated glomerular filtration rate 85.2, 76.5, 74, 56.2 mL/min/1.73 m2 for DECLARE-TIMI 58, CANVAS, EMPA-REG OUTCOME, and CREDENCE, respectively). Additionally, CREDENCE had considerably higher rates of albuminuria (median urinary albumin-creatinine ratios (UACR) were 927, 12.3, and 13.1 mg/g for CREDENCE, CANVAS, and DECLARE-TIMI 58, respectively; EMPA-REG OUTCOME had 59.4% UACR < 30, 28.6% UACR > 30-300, 11.0% UACR > 300 mg/g). CONCLUSIONS: Dapagliflozin, empagliflozin, and canagliflozin have internally and externally consistent and biologically plausible class effects on cardiorenal outcomes. Baseline renal filtration function and degree of albuminuria are the most significant indicators of risk for both CV and renal events. Thus, these two factors also anticipate the greatest clinical benefit for SGLT2i.


Assuntos
Compostos Benzidrílicos/uso terapêutico , Canagliflozina/uso terapêutico , Doenças Cardiovasculares/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Nefropatias Diabéticas/tratamento farmacológico , Glucosídeos/uso terapêutico , Insuficiência Renal Crônica/tratamento farmacológico , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Compostos Benzidrílicos/efeitos adversos , Canagliflozina/efeitos adversos , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/fisiopatologia , Sistema Cardiovascular/efeitos dos fármacos , Sistema Cardiovascular/fisiopatologia , Diabetes Mellitus Tipo 2/mortalidade , Diabetes Mellitus Tipo 2/fisiopatologia , Nefropatias Diabéticas/mortalidade , Nefropatias Diabéticas/fisiopatologia , Progressão da Doença , Glucosídeos/efeitos adversos , Humanos , Rim/efeitos dos fármacos , Rim/fisiopatologia , Fatores de Proteção , Ensaios Clínicos Controlados Aleatórios como Assunto , Insuficiência Renal Crônica/mortalidade , Insuficiência Renal Crônica/fisiopatologia , Medição de Risco , Fatores de Risco , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
7.
Scand Cardiovasc J ; 53(6): 299-304, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31315473

RESUMO

Objectives. Using composite endpoints and/or only first events in clinical research result in information loss and alternative statistical methods which incorporate recurrent event data exist. We compared information-loss under traditional analyses to alternative models. Design. We conducted a retrospective analysis of patients who underwent percutaneous coronary intervention (Jan2010-Dec2014) and constructed Cox models for a composite endpoint (readmission/death), a shared frailty model for recurrent events, and a joint frailty (JF) model to simultaneously account for recurrent and terminal events and evaluated the impact of heart failure (HF) on the outcome. Results. Among 4901 patients, 2047(41.8%) experienced a readmission or death within 1 year. Of those with recurrent events, 60% had ≥1 readmission and 6% had >4; a total of 121(2.5%) patients died during follow-up. The presence of HF conferred an adjusted Hazard ratio (HR) of 1.32 (95% CI: 1.18-1.47, p < .001) for the risk of composite endpoint (Cox model), 1.44 (95% CI: 1.36-1.52, p < .001) in the frailty model, and 1.34 (95% CI:1.22-1.46, p < .001) in the JF model. However, HF was not associated with death (HR 0.87, 95% CI: 0.52-1.48, p = .61) in the JF model. Conclusions. Using a composite endpoint and/or only the first event yields substantial loss of information, as many individuals endure >1 event. JF models reduce bias by simultaneously providing event-specific HRs for recurrent and terminal events.


Assuntos
Readmissão do Paciente , Intervenção Coronária Percutânea/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/mortalidade , Recidiva , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
8.
Artif Organs ; 43(3): 234-241, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30357882

RESUMO

Left ventricular assist devices (LVADs) have improved clinical outcomes and quality of life for those with end-stage heart failure. However, the costs and risks associated with these devices necessitate appropriate patient selection. LVAD candidates are becoming increasingly more obese and there are conflicting reports regarding obesity's effect on outcomes. Hence, we sought to evaluate the impact of extreme obesity on clinical outcomes after LVAD placement. Consecutive LVAD implantation patients at our center from June 2008 to May 2016 were studied retrospectively. We compared patients with a body mass index (BMI) ≥40 kg/m2 (extremely obese) to those with BMI < 40 kg/m2 with respect to patient characteristics and surgical outcomes, including survival. 252 patients were included in this analysis, 30 (11.9%) of whom met the definition of extreme obesity. We found that patients with extreme obesity were significantly younger (47[33, 57] vs. 60[52, 67] years, P < 0.001) with fewer prior sternotomies (16.7% vs. 36.0%, P = 0.04). They had higher rates of pump thrombosis (30% vs. 9.0%, P = 0.003) and stage 2/3 acute kidney injury (46.7% vs. 27.0%, P = 0.003), but there were no differences in 30-day or 1-year survival, even after adjusting for age and clinical factors. Extreme obesity does not appear to place LVAD implantation patients at a higher risk for mortality compared to those who are not extremely obese; however, extreme obesity was associated with an increased risk of pump thrombosis, suggesting that these patients may require additional care to reduce the need for urgent device exchange.


Assuntos
Insuficiência Cardíaca/cirurgia , Coração Auxiliar , Obesidade Mórbida/complicações , Complicações Pós-Operatórias/epidemiologia , Implantação de Prótese/efeitos adversos , Adulto , Idoso , Índice de Massa Corporal , Feminino , Ventrículos do Coração/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Implantação de Prótese/métodos , Qualidade de Vida , Estudos Retrospectivos , Resultado do Tratamento
9.
J Nurs Manag ; 27(1): 103-108, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29993153

RESUMO

BACKGROUND: The relationship between informal leaders, i.e., highly competent individuals who have influence over peers without holding formal leadership positions, and organisational outcomes has not been adequately assessed in health care. AIMS: We evaluated the relationships between informal leaders and experience, job satisfaction and patient satisfaction, among hospital nurses. METHODS: Floor nurses in non-leadership positions participated in an online survey and rated colleagues' leadership behaviours. Nurses identified as informal leaders took an additional survey to determine their leadership styles via the Multifactor Leadership QuestionnaireTM . Six months of patient satisfaction data were linked to the nursing units. RESULTS: A total of 3,456 (91%) nurses received peer ratings and 628 (18%) were identified as informal leaders. Informal leaders had more experience (13.2 ± 10.9 vs. 8.4 ± 9.7 years, p < 0.001) and higher job satisfaction than their counterparts (4.8 ± 1.2 vs. 4.5 ± 1.1, p = 0.007). Neither the proportion of informal leaders on a unit nor leadership style was associated with patient satisfaction (p = 0.53, 0.46, respectively). CONCLUSION: While significant relationships were not detected between patient satisfaction and styles/proportion of informal leaders, we found that informal leaders had more years of experience and higher job satisfaction. More work is needed to understand the informal leaders' roles in achieving organisational outcomes. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse informal leaders are unique resources and health care organisations should utilise them for optimal outcomes.


Assuntos
Liderança , Enfermeiras e Enfermeiros/psicologia , Satisfação do Paciente , Controles Informais da Sociedade/métodos , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Enfermeiras e Enfermeiros/normas , Enfermeiras e Enfermeiros/estatística & dados numéricos , Psicometria/instrumentação , Psicometria/métodos , Inquéritos e Questionários , Texas
10.
Rev Cardiovasc Med ; 19(3): 77-88, 2018 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-31054556

RESUMO

The role of anti-hyperlipidemic therapy remains of key importance in the treatment of atherosclerotic disease. Moreover, given an already exaggerated predisposition for vascular disease at baseline, there is a preponderance of data that show management of hyperlipidemia is especially important in patients with chronic kidney disease. This is a concise, up-to-date review of lipid physiology, alterations in lipid concentrations with progressive renal failure, and currently available and emerging hyperlipidemic treatment options. Specifically, the roles of these therapies in patients with chronic kidney disease are reviewed.


Assuntos
Dislipidemias/tratamento farmacológico , Hipolipemiantes/uso terapêutico , Rim/fisiopatologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Lipídeos/sangue , Insuficiência Renal Crônica/fisiopatologia , Animais , Biomarcadores/sangue , Dislipidemias/sangue , Dislipidemias/diagnóstico , Dislipidemias/epidemiologia , Humanos , Hipolipemiantes/efeitos adversos , Rim/metabolismo , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Resultado do Tratamento
11.
Rev Cardiovasc Med ; 19(2): 41-49, 2018 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-31032602

RESUMO

In this systematic review, we sought to summarize the 3 recent sodium-glucose cotransporter 2 inhibitor (SGLT2i) trials (Dapagliflozin Effect on CardiovasculAR Events (DECLARE-TIMI 58), Canagliflozin Cardiovascular Assessment Study (CANVAS) Program, and Empagliflozin, Cardiovascular Outcomes, and Mortality in Type 2 Diabetes (EMPA-REG OUTCOME)) and to explore the potential causes for their different results. We found that the major adverse cardiovascular event rates per 1000 patient-years for drug and placebo, as well as the corresponding relative risk reductions, were 22.6, 24.2, 7%; 26.9, 31.5, 14%; 37.4, 43.9, 14% for DECLARE-TIMI 58, CANVAS, and EMPA-REG OUTCOME, respectively. DECLARETIMI 58 had the fewest cardiorenal events (across treatment and control arms) and EMPA-REG OUTCOME the most. DECLARE-TIMI 58 used alternative inclusion criterion for baseline renal function (creatinine clearance ≧ 60 mL/min) compared to the other trials (estimated glomerular filtration rate (eGFR) > 30 mL/min/1.73 m2 bodysurface area). Therefore, the DECLARE-TIMI 58 study cohort had higher eGFR (mean eGFR 85.2 mL/min/1.73 m2 compared to 76.5 and 74 in CANVAS and EMPAREG OUTCOME, respectively); this may have caused the difference in results. Additionally contributing to the high event rate in EMPA-REG OUTCOME was the requirement of prior confirmed cardiovascular disease (CVD), resulting in 99.2% of patients with CVD compared to only 65.6% and 40.6% in CANVAS and DECLARE-TIMI 58, respectively (which did not require CVD). In conclusion, there is a need for large-scale studies of SGLT2i with matching inclusion/exclusion criteria and appropriate endpoints to ensure a truly direct comparison of the drugs.


Assuntos
Compostos Benzidrílicos/uso terapêutico , Canagliflozina/uso terapêutico , Doenças Cardiovasculares/fisiopatologia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucosídeos/uso terapêutico , Nefropatias/fisiopatologia , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Compostos Benzidrílicos/efeitos adversos , Biomarcadores , Glicemia/efeitos dos fármacos , Glicemia/metabolismo , Canagliflozina/efeitos adversos , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/mortalidade , Causas de Morte , Comorbidade , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/metabolismo , Glucosídeos/efeitos adversos , Nível de Saúde , Humanos , Nefropatias/diagnóstico , Nefropatias/mortalidade , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa , Fatores de Risco , Transportador 2 de Glucose-Sódio/efeitos dos fármacos , Transportador 2 de Glucose-Sódio/metabolismo , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Resultado do Tratamento
12.
Rev Cardiovasc Med ; 19(2): 51-63, 2018 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-31032603

RESUMO

Clinical trials of sodium glucose co-transporter 2 inhibitors (SGLT2i) in patients with type 2 diabetes and comorbid cardiovascular and kidney disease have shown reductions in major adverse cardiovascular events, heart failure hospitalizations, and attenuation of the progression of kidney disease. The magnitude of benefit appears to be greater than expected due to glycemic control, reduced blood pressure, and loss of adiposity. This impact is also independent from reduced renal function and lesser degrees of natriuresis and glycosuria. However, these agents have also been associated with limb amputation, Fournier's gangrene, diabetic ketoacidosis, metabolic bone disease, and increased hematopoiesis. A strong off-target effect of SGLT2i on the sodium-proton antiporter (exchanger) on the cell surface and intracellular organelles explains the wide-ranging effects of these agents. By slowing the restoration of pH within cells, SGLT2i activate secondary processes that mimic ischemic preconditioning in the heart and kidney and increased hematopoiesis in bone marrow which would explain salutary effects. Conversely, the inability to rapidly recover pH in ischemic peripheral tissues explains the progression of diabetic extremity ulcers, gangrene, propensity for metabolic bone disease, and diabetic ketoacidosis in patients who are predisposed. This paper will review the evidence for the strong off-target effect of SGLT2i on the sodium-proton exchanger and its potential effect on the organ systems and processes in which SGLT2i appear to have activity.


Assuntos
Doenças Cardiovasculares/metabolismo , Sistema Cardiovascular/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Nefropatias/metabolismo , Rim/efeitos dos fármacos , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Trocadores de Sódio-Hidrogênio/antagonistas & inibidores , Animais , Biomarcadores , Glicemia/efeitos dos fármacos , Glicemia/metabolismo , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/fisiopatologia , Sistema Cardiovascular/metabolismo , Sistema Cardiovascular/fisiopatologia , Comorbidade , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/mortalidade , Nível de Saúde , Humanos , Concentração de Íons de Hidrogênio , Rim/metabolismo , Rim/fisiopatologia , Nefropatias/diagnóstico , Nefropatias/mortalidade , Nefropatias/fisiopatologia , Fatores de Risco , Transportador 2 de Glucose-Sódio/efeitos dos fármacos , Transportador 2 de Glucose-Sódio/metabolismo , Trocadores de Sódio-Hidrogênio/metabolismo , Resultado do Tratamento
13.
Catheter Cardiovasc Interv ; 92(4): 653-658, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-29193683

RESUMO

AIM: There is a variable cardiovascular risk reduction attributable to aspirin because of individual differences in the suppression of thromboxane A2 and its downstream metabolite 11-dehydro-thromboxane B2 (11dhTxB2 ). The aim of this study is to evaluate the optimal cut point of urinary 11dhTxB2 for the risk of mortality in aspirin-treated coronary artery disease (CAD) patients. METHODS AND RESULTS: This was a prospective cohort study including stable CAD patients who visited the Baylor Heart and Vascular Hospital in Dallas or the Texas Heart Hospital Baylor Plano, TX between 2010 and 2013. The outcome of all-cause mortality was ascertained from chart review and automated sources. The 449 patients included in this analysis had a mean age of 66.1 ± 10.1 years. 67 (14.9%) patients died within 5 years; 56 (87.5%) of the 64 patients with known cause of death suffered a cardiovascular related mortality. Baseline ln(urinary 11dhTxB2 /creatinine) ranged between 5.8 and 11.1 (median = 7.2) with the higher concentrations among those who died (median: 7.6) than those who survived (median = 7.2, P < 0.001). Using baseline ln(11dhTxB2 ) to predict all-cause mortality, the area under the curve was 0.70 (95% CI: 0.64-0.76). The optimal cut point was found to be ln(7.38) = 1597.8 pg/mg, which had the following decision statistics: sensitivity = 0.67, specificity = 0.62, positive predictive value = 0.24, negative predictive value = 0.92, and accuracy = 0.63. CONCLUSION: Our data indicate the optimal cut point for urine 11dhTxB2 is 1597.8 (pg/mg) for the risk prediction of mortality over five years in stable patients with CAD patients treated with aspirin.


Assuntos
Aspirina/uso terapêutico , Doença da Artéria Coronariana/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Tromboxano B2/análogos & derivados , Idoso , Idoso de 80 Anos ou mais , Aspirina/urina , Biomarcadores/urina , Causas de Morte , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/urina , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/urina , Valor Preditivo dos Testes , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Texas , Tromboxano B2/urina , Fatores de Tempo , Resultado do Tratamento , Urinálise
14.
Rev Cardiovasc Med ; 18(1): 21-28, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28509890

RESUMO

Homozygous familial hypercholesterolemia (HoFH) is an autosomal codominant disorder manifested by high concentrations of total cholesterol and low-density lipoprotein (LDL) cholesterol, and premature cardiovascular disease. Despite conventional lipid-lowering therapy, LDL cholesterol levels remain elevated in patients with HoFH; these patients are considered to be at high risk for cardiovascular events. In 2012-2013, two drugs with novel mechanisms of action were approved by the US Food and Drug Administration for the treatment of HoFH: lomitapide mesylate and mipomersen. Both of these treatments reduce total cholesterol, LDL cholesterol, non-high-density lipoprotein cholesterol, apolipoprotein B, lipoprotein a, and triglyceride levels. This review describes the clinical tradeoffs in efficacy and hepatotoxicity of these drugs in two cases of HoFH.


Assuntos
Anticolesterolemiantes/uso terapêutico , Benzimidazóis/uso terapêutico , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , LDL-Colesterol/sangue , Homozigoto , Hiperlipoproteinemia Tipo II/tratamento farmacológico , Oligonucleotídeos/uso terapêutico , Anticolesterolemiantes/efeitos adversos , Benzimidazóis/efeitos adversos , Biomarcadores/sangue , Doença Hepática Induzida por Substâncias e Drogas/diagnóstico , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Regulação para Baixo , Feminino , Predisposição Genética para Doença , Humanos , Hiperlipoproteinemia Tipo II/sangue , Hiperlipoproteinemia Tipo II/diagnóstico , Hiperlipoproteinemia Tipo II/genética , Pessoa de Meia-Idade , Oligonucleotídeos/efeitos adversos , Fenótipo , Fatores de Risco , Resultado do Tratamento
15.
Proc (Bayl Univ Med Cent) ; 36(2): 171-177, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36876264

RESUMO

As the prevalence of morbid obesity continues to climb in America, so does the popularity of the Roux-en-Y gastric bypass (RYGB) to achieve weight loss goals; however, a long-term risk of RYGB is marginal ulceration, which requires urgent surgery if perforated. We sought to identify characteristics associated with elective vs urgent presentation for marginal ulcer following RYGB. Retrospective data for consecutive cases with marginal ulcers that required surgical intervention from May 2016 to February 2021 were queried from our institution's bariatric database, and differences in patient characteristics and clinical course were assessed according to presentation. Forty-three patients underwent surgery for marginal ulcer during the study timeframe. Twenty-four (56%) patients presented electively and were treated with resection of the gastroenterostomy and reanastomosis; the remaining 19 (44%) presented urgently with perforation and were treated with omental patch repair. Demographics, comorbidities, and medications were similar between groups. Patients with urgent presentations were less likely to have bleeds (0% vs. 33%, P = 0.0056) and strictures (16% vs. 46%, P = 0.0368), but were more likely to require admission to the intensive care unit (32% vs. 4%, P = 0.0325) and have a longer median length of stay (2 vs. 5 days, P < 0.0001). Bariatric surgeons must properly counsel patients about the risk of marginal ulcer development to prevent dangerous perforation, intensive care unit stays, and long hospitalizations.

16.
Heart Lung ; 57: 41-44, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36027738

RESUMO

BACKGROUND: Heart transplant recipients must regularly be assessed for graft rejection; however, endomyocardial biopsy (EMB), can be stressful, painful, and inconvenient. AlloMap® is the only commercially available non-invasive test for graft rejection. Current guidelines include AlloMap® testing in low-risk patients OBJECTIVES: To examine the patients' perspective, this study compared patients' experiences of AlloMap® and EMB surveillance at our center. METHODS: We enrolled consecutive heart transplant recipients who were to undergo routine EMB and AlloMap® testing (on different visits) to quantify their anxiety on the GAD-7 scale and their pain level on the Polyclinic Pain Scale. We assessed paired differences of anxiety and pain within patients according to surveillance method. RESULTS: We studied 43 participants (median age 60.5[54, 66] years; 35(81%) men; 27(63%) Caucasian). The median GAD-7 scores were 1[0, 4] and 2[0, 5] prior to EMB and AlloMap®, respectively (paired difference: 0[-1, 1],P = 0.323). The median pain scores were 1[0, 1] and 0[0, 0] for EMB and AlloMap®, respectively. Patients experienced less pain with AlloMap® testing compared to EMB (EMB-AlloMap;1[0, 1],P = 0.006). Seven (16%) participants experienced a total of 9 adverse events (pain, bruising, bleeding, swelling) from EMB vs 2(5%) participants who experienced a total of 3 adverse events (pain, bruising) from AlloMap®(P = 0.059). CONCLUSION: Heart transplant recipients had less pain and fewer adverse events while undergoing graft rejection surveillance with AlloMap® testing compared to EMB. An additional benefit of AlloMap® testing is that it may be performed at home and reduce these high-risk patients' infectious exposures.


Assuntos
Transplante de Coração , Masculino , Humanos , Pessoa de Meia-Idade , Feminino , Transplante de Coração/efeitos adversos , Rejeição de Enxerto/epidemiologia , Biópsia , Coração , Dor/etiologia , Miocárdio/patologia
17.
Am J Cardiol ; 191: 110-118, 2023 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-36669380

RESUMO

Discordance exists between Doppler-derived and left heart catheterization (LHC)-derived mean gradient (MG) in transcatheter aortic valve implantation (TAVI). We compared echocardiographic parameters of prosthetic valve stenosis and LHC-derived MG in new TAVIs. In a retrospective, single-center study, intraoperative transesophageal echocardiogram (TEE)-derived MG, LHC-derived MG, and acceleration time (AT) were obtained before and after TAVI in 362 patients. Discharge MG, AT, and Doppler velocity index (DVI) using transthoracic echocardiogram (TTE) were also obtained. MG ≥10 mm Hg was defined as abnormal. During native valve assessment with pre-TAVI TEE and pre-TAVI LHC, Pearson correlation coefficient revealed a nearly perfect linear relation between both methods' MGs (r = 0.97, p <0.0001). Intraoperatively, after TAVI, Spearman correlation coefficient revealed a weak-to-moderate relation between post-TAVI TEE and LHC MGs (r = 0.33, p <0.0001). Significant differences were observed in categorizations between post-TAVI TEE MG and post-TAVI AT (McNemar test p = 0.0003) and between post-TAVI TEE MG and post-TAVI LHC MG (signed-rank test p <0.0001), with TEE MG more likely to misclassify a patient as abnormal. At discharge, 30% of patients had abnormal TTE MG, whereas 0% and 0.8% of patients had abnormal DVI and AT, respectively. Discharge TTE MG was not associated with death or hospitalization for heart failure at a median follow-up of 862 days. Post-TAVI Doppler-derived MG by intraoperative TEE was higher than LHC, despite being virtually identical before implantation. At discharge, patients were more likely to be classified as abnormal using MG than DVI and AT. Elevated MG at discharge was not associated with death or hospitalization for heart failure.


Assuntos
Estenose da Valva Aórtica , Implante de Prótese de Valva Cardíaca , Substituição da Valva Aórtica Transcateter , Humanos , Substituição da Valva Aórtica Transcateter/efeitos adversos , Valva Aórtica/cirurgia , Constrição Patológica/cirurgia , Estenose da Valva Aórtica/diagnóstico , Estenose da Valva Aórtica/cirurgia , Estudos Retrospectivos , Ecocardiografia , Ecocardiografia Transesofagiana , Catéteres , Resultado do Tratamento
18.
Kidney Med ; 5(12): 100736, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38046912

RESUMO

Rationale & Objective: Providing fruits and vegetables (F&Vs) to health care system patients with elevated urine albumin-creatinine ratio (ACR) reduced ACR, slowed chronic kidney disease (CKD) progression and reduced cardiovascular disease (CVD) risk factors in previous studies. This study evaluated a community-based strategy in lower-income populations to identify African Americans with elevated ACR before health care system involvement and sustain them in a 6-month F&V protocol with (F&V + Cook) and without (F&V Only) cooking instructions, with the hypothesis that adjuvant cooking instructions with F&Vs would further reduce ACR. Study Design: Prospective, randomized, parallel 2-arm design. Setting & Participants: African American adults with ACR >10 mg/g creatinine randomized to 1 of 2 study arms. Interventions: Two cups/day of F&Vs with or without cooking instructions in participants followed 6 months. Outcomes: Participants sustaining the F&V protocol and between-group indicators of CVD risk, kidney injury, and dietary intake at 6 weeks and 6 months. Results: A total of 142 African American adults (mean age, 57.0 years; ACR, 27.4 mg/g; body mass index, 34.4; 24.9% CKD 1; 24.8% CKD 2; 50.4% CKD 3; 55% female) randomized to F&V Only (n=72) or F&V + Cook (n=70), and 71% were retained at 6 months. Participants received 90% of available F&V pick-ups over 6 weeks and 69% over 6 months. In the adjusted model, 6-month ACR was 31% lower for F&V + Cook than F&V Only (P = 0.02). Net 6-week F&V intake significantly increased and biometric variables improved for participants combined into a single group. Limitations: Small sample size, low-baseline ACR, and potential nonresponse bias for 24-hour dietary recall measure. Conclusions: These data support the feasibility of identifying community-dwelling African Americans with ACR indicating elevated CVD and CKD risk and sustaining a F&V protocol shown to improve kidney outcomes and CVD risk factors and provides preliminary evidence that cooking instructions adjuvant to F&Vs are needed to lower ACR. Funding: National Institute on Diabetes, Digestive, and Kidney Diseases grant "Reducing chronic kidney disease burden in an underserved population" (R21DK113440). Trial Registration: NCT03832166. Plain-Language Summary: African Americans, particularly those in low-income communities, have increased rates of chronic kidney disease (CKD) with worsening outcomes over time. Giving fruits and vegetables to individuals with CKD identified in health care systems was previously shown to reduce kidney damage, measured by urine protein albumin, and slow kidney function decline. We recruited African Americans in low-income communities with increased urine albumin levels. They received fruits and vegetables for 6 months, and we tested whether added cooking instructions further reduced urine albumin levels. Most participants continued to receive fruits and vegetables throughout the 6 months. Those given cooking instructions had lower urine albumin levels after 6 months, indicating decreased kidney damage. Providing cooking instructions with fruits and vegetables appears to lessen kidney damage more than just fruits and vegetables alone.

19.
Respir Care ; 68(4): 497-504, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36220192

RESUMO

BACKGROUND: Many COVID-19 studies are constructed to report hospitalization outcomes, with few large multi-center population-based reports on the time course of intra-hospitalization characteristics, including daily oxygenation support requirements. Comprehensive epidemiologic profiles of oxygenation methods used by day and by week during hospitalization across all severities are important to illustrate the clinical and economic burden of COVID-19 hospitalizations. METHODS: This was a retrospective, multi-center observational cohort study of 15,361 consecutive hospitalizations of patients with COVID-19 at 25 adult acute care hospitals in Texas participating in the Society of Critical Care Medicine Discovery Viral Respiratory Illness Universal Study COVID-19 registry. RESULTS: At initial hospitalization, the majority required nasal cannula (44.0%), with an increasing proportion of invasive mechanical ventilation in the first week and particularly the weeks to follow. After 4 weeks of acute illness, 69.9% of adults hospitalized with COVID-19 required intermediate (eg, high-flow nasal cannula, noninvasive ventilation) or advanced respiratory support (ie, invasive mechanical ventilation), with similar proportions that extended to hospitalizations that lasted ≥ 6 weeks. CONCLUSIONS: Data representation of intra-hospital processes of care drawn from hospitals with varied size, teaching and trauma designations is important to presenting a balanced perspective of care delivery mechanisms employed, such as daily oxygen method utilization.


Assuntos
COVID-19 , Prestação Integrada de Cuidados de Saúde , Adulto , Humanos , SARS-CoV-2 , COVID-19/epidemiologia , COVID-19/terapia , Estudos Retrospectivos , Pulmão , Hospitalização
20.
Am J Cardiol ; 162: 111-115, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34903336

RESUMO

Cardiac arrhythmias have been observed in patients hospitalized with coronavirus disease (COVID-19). Most analyses of rhythm disturbances to date include cases of sinus tachycardia, which may not accurately reflect true cardiac dysfunction. Furthermore, limited data exist regarding the development of conduction disturbances in patients hospitalized with COVID-19. Hence, we performed a retrospective review and compared characteristics and outcomes for patients with versus without incident arrhythmia, excluding sinus tachycardia, as well as between those with versus without incident conduction disturbances. There were 27 of 173 patients (16%) hospitalized with COVID-19 who developed a new arrhythmia. Incident arrhythmias were associated with an increased risk of intensive care unit admission (59% vs 31%, p = 0.0045), intubation (56% vs 20%, p <0.0001), and inpatient death (41% vs 10%, p = 0.0002) without an associated increase in risk of decompensated heart failure or other cardiac issues. New conduction disturbances were found in 13 patients (8%). Incident arrhythmias in patients hospitalized with COVID-19 are associated with an increased risk of mortality, likely reflective of underlying COVID-19 disease severity more than intrinsic cardiac dysfunction. Conduction disturbances occurred less commonly and were not associated with adverse patient outcomes.


Assuntos
Arritmias Cardíacas/etiologia , COVID-19/complicações , Sistema de Condução Cardíaco/fisiopatologia , Hospitalização/estatística & dados numéricos , Pacientes Internados , SARS-CoV-2 , Idoso , Arritmias Cardíacas/epidemiologia , Arritmias Cardíacas/terapia , COVID-19/epidemiologia , COVID-19/terapia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Estados Unidos/epidemiologia
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