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Background Heart failure with improved ejection fraction (EF) is increasingly recognized as a sizable and distinct entity. While the features associated with improvedEF have been explored and new guidelines have emerged, factors associated with sustaining an improved EF over time have not been defined. We aimed to assess factors associated with maintenance of an improved EF in a large real-world patient cohort. Methods and Results A total of 7070 participants with heart failure with improved EF and a subsequent echocardiogram performed after at least 9 months of follow-up were included in a retrospective cohort study conducted at the Cleveland Clinic in Cleveland, Ohio. Multiple logistic regression models, adjusted for demographics, comorbidities, and medications were built to identify characteristics and therapeutic interventions associated with maintaining an improved EF. Mean age (SD) was 64.9 (13.8) years, 62.7% were men, and 75.1% were White participants. White race and the use of angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or angiotensin receptor-neprilysin inhibitors were associated with maintaining the EF at least 9 months after EF improvement. In contrast, male sex or having atrial fibrillation/flutter, coronary artery disease, history of myocardial infarction, presence of an implanted cardioverter-defibrillator, and use of loop diuretics were associated with a decline in EF after previously documented improvement. Conclusions Continued use of renin-angiotensin-aldosterone system inhibitors was associated with maintaining the EF beyond the initial improvement phase.
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Insuficiencia Cardíaca , Humanos , Masculino , Persona de Mediana Edad , Anciano , Femenino , Estudios Retrospectivos , Volumen Sistólico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Antagonistas de Receptores de Angiotensina/uso terapéutico , Sistema de RegistrosRESUMEN
As the mainstay of therapy for end-stage liver disease (ESLD), orthotopic liver transplantation (OLT) has complex effects on multiple organ systems. We present a representative case of acute heart failure with apical ballooning syndrome following OLT and review its mechanisms. Recognition of this and other potential cardiovascular and hemodynamic complications of OLT are essential to periprocedural anesthesia management. Once an acute phase of the condition is stabilized, conservative treatment and resolution of physical or emotional stressors usually allow for rapid resolution of symptoms, typically recovering systolic ventricular function within one to three weeks.
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In stable coronary artery disease (CAD), revascularization improves outcomes only for patients with high-risk coronary anatomy (HRCA). We sought to derive and validate a prediction model, incorporating clinical and exercise stress test characteristics, to identify patients with HRCA. We conducted a retrospective analysis of patients undergoing exercise stress testing at Cleveland Clinic (2005 to 2014), followed by invasive coronary angiography within 3 months. We excluded patients with acute coronary syndrome, known CAD or ejection fraction <50%. HRCA was defined as left main, 3-vessel, or 2-vessel disease involving the proximal left anterior descending artery. Clinical and stress test predictors of HRCA were identified in a multivariable logistic regression model, internally validated with 1,000-fold bootstrapping. The model was then externally validated at the University of Pittsburgh Medical Center (2017 to 2019). The model was derived from 2,758 patients with complete data. HRCA was identified in 418 patients (15.2%) in the derivation cohort. The model consisted of 10 variables: age, male gender, hypertension, hypercholesterolemia, diabetes mellitus, family history of premature CAD, high-density lipoprotein, chest pain, exercise time, and Duke Treadmill Score. Bias-corrected c-statistic was 0.79 (95% confidence interval 0.77 to 0.81) with excellent calibration. In all, 762 patients (27.6%) had a predicted probability and observed prevalence of HRCA <5%. In the validation cohort, the model had a c-statistic of 0.79 (95% confidence interval 0.74 to 0.85) and 210 patients had an observed prevalence of HRCA <5% (40%). In conclusion, an externally validated prediction model, based on clinical characteristics and exercise stress test variables, can identify stable patients with CAD who have HRCA.
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Enfermedad de la Arteria Coronaria , Angiografía Coronaria , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/epidemiología , Prueba de Esfuerzo , Humanos , Masculino , Estudios Retrospectivos , Medición de Riesgo , Factores de RiesgoRESUMEN
Eosinophilic myocarditis is a clinical condition whereby myocardial injury is mediated by eosinophilic infiltration. A number of underlying causes, including reactive, clonal, or idiopathic hypereosinophilic syndrome, may trigger eosinophilia. Disease presentation may vary from mild subclinical variants to fulminant myocarditis with thromboembolic complications, and in some cases, endomyocardial and valvular fibrosis may be seen. A detailed examination coupled with the use of multimodality imaging, and endomyocardial biopsy may help establish diagnosis. Treatment is aimed at symptomatic management and treating the underlying cause of eosinophilia, such as withdrawal of implicated drugs, antihelminthic therapy for infection, immunosuppression for autoimmune conditions, and targeted therapy with tyrosine kinase inhibitors in cases with clonal myeloid disorders.
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Síndrome Hipereosinofílico , Hipersensibilidad , Miocarditis , Corazón , Humanos , Síndrome Hipereosinofílico/diagnóstico , Síndrome Hipereosinofílico/tratamiento farmacológico , Miocarditis/diagnóstico , Miocarditis/etiología , MiocardioRESUMEN
Outpatient follow-up after hospital discharge improves continuity of care and reduces readmissions, but rates of follow-up remain low. It is not known whether electronic medical record (EMR)-based tools improve follow-up. The aim of this study was to determine if an EMR-based order to secure cardiology follow-up appointments at hospital discharge would improve follow-up rates and hospital readmission rates. A pre-post interventional study was conducted and evaluated 39,209 cardiovascular medicine discharges within an academic center between 2012 and 2017. Follow-up rates and readmission rates were compared during 2 years prior to EMR-order implementation (pre-order era 2012-2013, n = 12,852) and 4 years after implementation (EMR-order era 2014-2017, n = 26,357). The primary endpoint was 90-day cardiovascular follow-up rates within our health system. In the overall cohort, the mean age of patients was 69.3 years [SD 14.7] and 60.7% (n = 23,827) were male. In the pre-order era, 90-day follow-up was 56.7 ± 0.4% (7286 of 12,852) and increased to 67.9 ± 0.3% (17,888 of 26,357, P < 0.001) in the EMR-order era. The use of the EMR follow-up order was independently associated with increased outpatient follow-up within 90 days after adjusting for patient demographics and payor status (OR 3.28, 95% CI 3.10-3.47, P < 0.001). The 30-day readmission rate in the pre-order era was 12.8% (1642 of 12,852) compared with 13.7% (3601 of 26,357, P = 0.016) in the EMR-order era. An EMR-based appointment order for follow-up appointment scheduling was associated with increased cardiovascular medicine follow-up, but was not associated with an observed reduction in 30-day readmission rates.
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BACKGROUND: Data are lacking on the effect of renin-angiotensin system (RAS) blockade therapy with angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers after surgical aortic valve replacement (SAVR) for severe aortic stenosis (AS). OBJECTIVE: To investigate the association between RAS blockade therapy and outcomes after SAVR for severe AS. DESIGN: Retrospective study. SETTING: Single tertiary referral care center. PATIENTS: Patients who were prescribed angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers after SAVR for severe AS between 1991 and 2010 who had at least 2 refills 90 days apart and at least a 6-month follow-up constituted the RAS blockade group (n = 741). Patients who did not receive these prescriptions were in the untreated group (n = 1011). Unadjusted and propensity-matched analyses (594 matched pairs of treated and untreated patients) were performed. MEASUREMENTS: The primary outcome was survival rates after SAVR. Secondary end points were changes in left ventricular mass index, left ventricular ejection fraction, and left atrial size. RESULTS: Overall unadjusted estimated survival rates at 1, 5, and 10 years were significantly greater in the RAS blockade group than in the non-RAS blockade group (99%, 90%, and 60% vs. 99%, 81%, and 53%, respectively; P < 0.001). Among propensity-matched patients, estimated survival rates at 1, 5, and 10 years remained significantly greater in the RAS blockade group than in the non-RAS blockade group (99%, 90%, and 71% vs. 96%, 78%, and 49%, respectively; P < 0.001). For the matched cohorts, the groups did not significantly differ in the change in left ventricular mass index (P = 0.37), left ventricular ejection fraction (P = 0.67), or left atrial size (P = 0.43) after SAVR on echocardiographic analysis. LIMITATION: Retrospective, single-center analysis. CONCLUSION: Renin-angiotensin system blockade therapy is associated with increased survival rates in patients after SAVR for severe AS. A randomized trial of RAS blockade therapy after SAVR should be considered. PRIMARY FUNDING SOURCE: None.
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Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Estenosis de la Válvula Aórtica/cirugía , Implantación de Prótesis de Válvulas Cardíacas , Sistema Renina-Angiotensina/efectos de los fármacos , Anciano , Antagonistas de Receptores de Angiotensina/farmacología , Inhibidores de la Enzima Convertidora de Angiotensina/farmacología , Válvula Aórtica/diagnóstico por imagen , Válvula Aórtica/cirugía , Estenosis de la Válvula Aórtica/mortalidad , Femenino , Estudios de Seguimiento , Ventrículos Cardíacos/anatomía & histología , Ventrículos Cardíacos/diagnóstico por imagen , Humanos , Masculino , Estudios Retrospectivos , Tasa de Supervivencia , UltrasonografíaRESUMEN
BACKGROUND: Transcatheter aortic valve replacement (TAVR) is an important treatment option for patients with severe symptomatic aortic stenosis (AS) who are inoperable or at high risk for complications with surgical aortic valve replacement. We report here our single-center data on consecutive patients undergoing transfemoral (TF) TAVR since the inception of our program, with a special focus on minimizing and managing complications. METHODS: The patient population consists of all consecutive patients who underwent an attempted TF-TAVR at our institution, beginning with the first proctored case in May 2006, through December 2012. Clinical, procedural, and echocardiographic data were collected by chart review and echo database query. All events are reported according to Valve Academic Research Consortium-2. RESULTS: During the study period, 255 patients with AS had attempted TF-TAVR. The procedure was successful in 244 (95.7%) patients. Serious complications including aortic annular rupture (n = 2), coronary occlusion (n = 2), iliac artery rupture (n = 1), and ventricular embolization (n = 1) were successfully managed. Death and stroke rate at 30 days was 0.4% and 1.6%, respectively. One-year follow-up was complete in 171 (76%) patients. One-year mortality was 17.5% with a 3.5% stroke rate. Descending aortic rupture, while advancing the valve, was the only fatal procedural event. There were 24.4% patients with ≥2+ aortic regurgitation. CONCLUSIONS: TAVR can be accomplished with excellent safety in a tertiary center with a well-developed infrastructure for the management of serious complications. The data presented here provide support for TAVR as an important treatment option, and results from randomized trials of patients with lower surgical risk are eagerly awaited.
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Estenosis de la Válvula Aórtica/mortalidad , Estenosis de la Válvula Aórtica/cirugía , Complicaciones Posoperatorias/prevención & control , Complicaciones Posoperatorias/fisiopatología , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Centros Médicos Académicos , Anciano , Anciano de 80 o más Años , Rotura de la Aorta/mortalidad , Rotura de la Aorta/prevención & control , Válvula Aórtica/fisiopatología , Estenosis de la Válvula Aórtica/diagnóstico por imagen , Estudios de Cohortes , Estenosis Coronaria/prevención & control , Ecocardiografía Doppler , Femenino , Estudios de Seguimiento , Mortalidad Hospitalaria , Humanos , Estimación de Kaplan-Meier , Masculino , Complicaciones Posoperatorias/mortalidad , Estudios Retrospectivos , Medición de Riesgo , Rotura Espontánea/prevención & control , Índice de Severidad de la Enfermedad , Accidente Cerebrovascular/mortalidad , Accidente Cerebrovascular/prevención & control , Tasa de Supervivencia , Reemplazo de la Válvula Aórtica Transcatéter/métodos , Reemplazo de la Válvula Aórtica Transcatéter/mortalidad , Resultado del TratamientoAsunto(s)
Insuficiencia Cardíaca/epidemiología , Prótesis Valvulares Cardíacas , Insuficiencia de la Válvula Mitral/cirugía , Válvula Mitral/cirugía , Progresión de la Enfermedad , Estudios de Seguimiento , Insuficiencia Cardíaca/etiología , Humanos , Insuficiencia de la Válvula Mitral/complicaciones , Prevalencia , Pronóstico , Diseño de Prótesis , Estudios Retrospectivos , Estados Unidos/epidemiologíaRESUMEN
BACKGROUND: Hereditary hemorrhagic telangiectasia is characterized by arteriovenous malformations or telangiectasias in multiple organs. Nose bleeding is the most common manifestation of hereditary hemorrhagic telangiectasia and can be debilitating. Cardiac involvement in the form of high-output cardiac failure is a poorly studied complication of hereditary hemorrhagic telangiectasia. The objective of this study is to describe the natural history of high-output cardiac failure in hereditary hemorrhagic telangiectasia and define the relation between bleeding complications and high-output cardiac failure. METHODS: In this case-control study at the Washington University hereditary hemorrhagic telangiectasia center, all patients evaluated for hereditary hemorrhagic telangiectasia and found to have high cardiac output between 1999 and 2006 were enrolled as cases (n = 17) and compared with 17 hereditary hemorrhagic telangiectasia controls without high-output cardiac failure. RESULTS: During lifetime, cases needed more transfusions, emergency department visits, and hospital admission for nose bleeding. Cases experienced significant worsening of nose bleeding immediately before heart failure diagnosis. During the 2 years before study-related evaluation, 16 (94%) cases needed transfusions every month as compared with 2 (12%) controls (P <.001). The number of transfusions required during these 2 years also was higher in cases (median 3, range 0-12) as compared with controls (median 0, range 0-1.5, P <.001). CONCLUSIONS: Hereditary hemorrhagic telangiectasia patients with high-output cardiac failure have significantly greater nose bleeding as compared with patients without high-output cardiac failure. In addition, nose bleeding worsens around the time of development of high-output cardiac failure. Early recognition of the relationship between severe nose bleeding and high-output cardiac failure can lead to earlier diagnosis and provide an opportunity for earlier institution of therapy for high-output cardiac failure.
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Gasto Cardíaco Elevado/diagnóstico , Epistaxis/etiología , Telangiectasia Hemorrágica Hereditaria/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Malformaciones Arteriovenosas/complicaciones , Malformaciones Arteriovenosas/patología , Cateterismo Cardíaco , Gasto Cardíaco Elevado/etiología , Gasto Cardíaco Elevado/fisiopatología , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Telangiectasia Hemorrágica Hereditaria/fisiopatología , Función Ventricular DerechaRESUMEN
BACKGROUND: Adverse cardiac events that follow cardiac surgery are an important source of perioperative morbidity and mortality for women. Troponin I provides a sensitive measure of cardiac injury, but the levels after cardiac surgery may vary between sexes. Our purpose in this study was to evaluate the prognostic value of troponin I levels for predicting cardiovascular complications in postmenopausal women undergoing cardiac surgery. METHODS: The cohort of this study were women enrolled in a previously reported clinical trial evaluating the neuroprotective potential of 17beta-estradiol in elderly women. In that study, 175 postmenopausal women not receiving estrogen replacement therapy and scheduled to undergo coronary artery bypass graft (with or without valve surgery) were prospectively randomized to receive 17beta-estradiol or placebo in a double-blind manner beginning the day before surgery and continuing for 5 days postoperatively. Serial 12-lead electrocardiograms were performed and serum troponin I concentrations were measured before surgery, after surgery on arrival in the intensive care unit, and for the first four postoperative days. The primary end-point of the present study was major adverse cardiovascular events (MACE) defined as a Q-wave myocardial infarction, low cardiac output state or death within 30 days of surgery. The diagnosis of Q-wave myocardial infarction was made independently by two physicians blinded to treatment and patient outcomes with the final diagnosis requiring consensus. Low cardiac output state was defined as cardiac index <2.0 L x min(-1) x m(-2) for >8 h regardless of treatment. RESULTS: Troponin I levels on postoperative day 1 were predictive of MACE (area under the receiver operator curve = 0.862). A cutoff point for troponin I of >7.6 ng/mL (95% confidence interval, 6.4-10.8) provided the optimal sensitivity and specificity for identifying patients at risk for MACE. The negative predictive value of a troponin I level for identifying a patient with a composite cardiovascular outcome was high (96%) and the positive predictive value moderate (40%). Postoperative troponin I levels were not different between women receiving perioperative 17beta-estradiol treatment compared with placebo and the frequency of MACE was not influenced by 17beta-estradiol treatment. CONCLUSIONS: In postmenopausal women, elevated troponin I levels on postoperative day 1 are predictive of MACE. Monitoring of perioperative troponin I levels might provide a means for stratifying patients at risk for adverse cardiovascular events.
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Procedimientos Quirúrgicos Cardíacos/efectos adversos , Enfermedades Cardiovasculares/etiología , Complicaciones Posoperatorias/sangre , Troponina I/sangre , Anciano , Gasto Cardíaco Bajo/epidemiología , Gasto Cardíaco Bajo/etiología , Enfermedades Cardiovasculares/epidemiología , Método Doble Ciego , Electrocardiografía , Estradiol/uso terapéutico , Femenino , Humanos , Modelos Logísticos , Persona de Mediana Edad , Infarto del Miocardio/epidemiología , Infarto del Miocardio/etiología , Atención Perioperativa , Valor Predictivo de las Pruebas , Pronóstico , Curva ROC , Resultado del TratamientoRESUMEN
BACKGROUND: Women are prone to neurological complications after cardiac surgery. We have previously reported that treatment perioperatively with the neuroprotectant steroid 17beta-estradiol did not improve neurocognitive end-points 4 to 6 wk after surgery for elderly women. In this study, we evaluated the influence of early postoperative neurocognitive dysfunction on quality of life in postmenopausal women undergoing cardiac surgery and whether it is impacted by perioperative 17beta-estradiol treatment. METHODS: One hundred seventy-four postmenopausal women randomly received 17beta-estradiol or placebo in a double-blind manner beginning the day before surgery and continued until the fifth postoperative day. The patients underwent psychometric testing using a standard battery before surgery and again 4 to 6 wk and 6 mo postoperatively. Quality of life was assessed at baseline and 6 mo after surgery with the SF-36 questionnaire and the Lawton instrumental activities of daily living scale. RESULTS: Complete data were available from 108 women of whom 13% demonstrated postoperative neurocognitive dysfunction. Based on multiple logistic regression analysis, a neurocognitive deficit 4 to 6 wk after surgery was an independent predictor of a lower SF-36 physical component score (P = 0.004) and lower Lawton instrumental activities of daily living scale 6 mo postoperatively (P = 0.026). Treatment with 17beta-estradiol (P = 0.003) and smoking status (P = 0.015) were predictors of worse SF-36 mental health component rating. Preoperative lower scores were independently associated with low quality of life postoperatively for all measurements. CONCLUSIONS: Postoperative neurocognitive dysfunction is associated with impaired quality of life in women after cardiac surgery. Perioperative treatment with 17beta-estradiol provides no benefits to postoperative quality of life. The relationship between low preoperative and postoperative self-rated health status suggests that some aspects of quality of life in postmenopausal women are not amenable to improvements with cardiac surgery.
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Procedimientos Quirúrgicos Cardíacos/efectos adversos , Trastornos del Conocimiento/psicología , Complicaciones Posoperatorias/psicología , Calidad de Vida , Anciano , Anciano de 80 o más Años , Procedimientos Quirúrgicos Cardíacos/psicología , Método Doble Ciego , Estradiol/uso terapéutico , Femenino , Humanos , Modelos Lineales , Modelos Logísticos , Masculino , Persona de Mediana Edad , Posmenopausia , Caracteres Sexuales , Factores de TiempoAsunto(s)
Dolor en el Pecho/diagnóstico por imagen , Angiografía Coronaria/métodos , Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Síndrome Metabólico/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Calcinosis/diagnóstico por imagen , Dolor en el Pecho/etiología , Enfermedad de la Arteria Coronaria/complicaciones , Electrocardiografía/métodos , Femenino , Humanos , Síndrome Metabólico/complicaciones , Persona de Mediana Edad , Dosis de RadiaciónRESUMEN
BACKGROUND AND PURPOSE: Neurocognitive dysfunction is an important source of patient morbidity and mortality after cardiac surgery that may disproportionately affect postmenopausal women. 17beta-Estradiol limits the extent of ischemic neuronal injury in a variety of experimental models. The purpose of this study was to evaluate whether perioperative administration of 17beta-estradiol to postmenopausal women reduces the frequency of neurocognitive dysfunction after cardiac surgery. METHODS: One hundred seventy-four postmenopausal women not on estrogen replacement therapy who were undergoing primary coronary artery bypass graft surgery and/or valve surgery with cardiopulmonary bypass were prospectively randomized to receive in a double-blinded manner either 17beta-estradiol or placebo beginning the day before surgery and continuing for 5 days postoperatively. The patients were evaluated before and after surgery with the National Institutes of Health Stroke Scale and a psychometric test battery. RESULTS: There were no differences in the frequency of neurocognitive dysfunction (primary outcome) between patients randomized to perioperative 17beta-estradiol (n=86) and those randomized to placebo (n=88) 4 to 6 weeks after surgery (17beta-estradiol, 22.4% versus placebo, 21.4%, P=0.45). The mean scores on tests of psychomotor speed were worse in women in the 17beta-estradiol group than in the placebo group at the 4- to 6-week (P=0.005) postoperative testing sessions. CONCLUSIONS: Perioperative treatment with 17beta-estradiol did not result in improved neurocognitive outcomes in postmenopausal women undergoing cardiac surgery.
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Isquemia Encefálica , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Trastornos del Conocimiento , Cognición/efectos de los fármacos , Estradiol , Posmenopausia , Isquemia Encefálica/complicaciones , Isquemia Encefálica/etiología , Isquemia Encefálica/fisiopatología , Isquemia Encefálica/prevención & control , Trastornos del Conocimiento/tratamiento farmacológico , Trastornos del Conocimiento/etiología , Trastornos del Conocimiento/mortalidad , Estradiol/farmacología , Estradiol/uso terapéutico , Femenino , Humanos , Complicaciones Intraoperatorias , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Resultado del TratamientoRESUMEN
OBJECTIVE: The purpose of this study was to investigate if the preoperative use of new platelet inhibitors and low-molecular-weight heparins may contribute to bleeding after cardiac surgery. DESIGN: Retrospective data review. SETTING: University teaching hospital. PARTICIPANTS: One hundred eleven patients divided in 5 groups. INTERVENTIONS: Patients were grouped according to preoperative antithrombotic regimen: group 1, control, no agents (n=55); group 2, clopidogrel (n=9); group 3, enoxaparin (n=17); group 4, any GP IIb/IIIa inhibitor (n=14); and group 5, any drug combination (n=15). Data included cumulative mediastinal chest tube drainage, allogeneic blood transfusions, total blood donor exposures, and re-exploration. MEASUREMENTS AND MAIN RESULTS: Use of any drug (groups 2-5) resulted in greater total blood transfusions and donor exposure (p=0.0003) than control, especially red cells (p=0.002) and platelets (p=0.006). A greater percentage of patients on enoxaparin required mediastinal re-exploration for nonsurgical bleeding versus control (3/17 v 0/55, p=0.001). The use of enoxaparin was associated with significantly higher chest tube output after the first 24 hours postoperatively (p=0.048). CONCLUSION: Newer antithrombotic agents were associated with greater transfusion rates and total donor exposures. Enoxaparin use was associated with greater overall blood loss and with higher incidence of mediastinal re-exploration. The relative risk-benefit ratio of reduced periprocedure morbidity versus increased bleeding complications has yet to be determined.
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Enoxaparina/efectos adversos , Hemorragia Posoperatoria/sangre , Hemorragia Posoperatoria/inducido químicamente , Análisis de Varianza , Procedimientos Quirúrgicos Cardiovasculares/efectos adversos , Procedimientos Quirúrgicos Cardiovasculares/estadística & datos numéricos , Enoxaparina/uso terapéutico , Heparina de Bajo-Peso-Molecular/efectos adversos , Heparina de Bajo-Peso-Molecular/uso terapéutico , Humanos , Análisis Multivariante , Inhibidores de Agregación Plaquetaria/efectos adversos , Inhibidores de Agregación Plaquetaria/uso terapéutico , Cuidados Preoperatorios , Estudios Retrospectivos , Factores de RiesgoRESUMEN
The prognostic ability of simplified peak power (SPP) reserve, a novel measure of left ventricular systolic performance, was prospectively studied in patients with advanced heart failure (HF) and implantable cardioverter-defibrillators. Reduced SPP reserve identified patients who are at high risk for experiencing progressive HF.
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Desfibriladores Implantables , Insuficiencia Cardíaca/fisiopatología , Disfunción Ventricular Izquierda , Estudios de Casos y Controles , Dobutamina , Ecocardiografía , Femenino , Insuficiencia Cardíaca/diagnóstico por imagen , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Índice de Severidad de la EnfermedadRESUMEN
OBJECTIVES: This study was designed to determine the effects of obesity on left ventricular (LV) structure and function in young obese women. BACKGROUND: Severe prolonged obesity in older adults results in increased plasma volume, eccentric LV hypertrophy, and systolic and diastolic dysfunction. Obese women are at increased risk for the development of heart failure. However, the effects of the obesity on cardiac structure and function in young, otherwise-healthy women are controversial. METHODS: Fifty-one women were evaluated: 20 were obese (body mass index [BMI] > or =30 kg/m(2)) and 31 were non-obese (BMI <30 kg/m(2)). Left ventricular structure and systolic and diastolic function were assessed by two-dimensional echocardiography and tissue Doppler imaging, including the load-independent systolic myocardial velocity (Sm global) and early diastolic myocardial velocity (Em global), respectively. The effects of BMI on LV structure and function were assessed using multivariate regression analyses. RESULTS: Obese women had higher end-diastolic septal and posterior wall thickness, LV mass, and relative wall thickness than non-obese women; BMI values showed significant correlations with these variables (r = 0.58, p < 0.0001; r = 0.50, p < 0.0002; r = 0.52, p < 0.0001, and r = 0.40, p < 0.005, respectively). The Sm global and Em global were lower in obese women, suggesting systolic and diastolic function are decreased; both were negatively correlated with BMI (r = -0.43, p <. 002 and r = -0.61, p < 0.0001, respectively). Multivariate analysis showed BMI was the only independent predictor of relative wall thickness, Sm global, and Em global. CONCLUSIONS: Obesity in young otherwise-healthy women is associated with concentric LV remodeling and decreased systolic and diastolic function. These early abnormalities in LV structure and function may have important implications for explaining the myocardial dysfunction that is associated with increased cardiovascular morbidity and mortality caused by obesity.
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Obesidad/fisiopatología , Disfunción Ventricular Izquierda/etiología , Remodelación Ventricular , Adulto , Índice de Masa Corporal , Diástole , Ecocardiografía , Femenino , Ventrículos Cardíacos/anatomía & histología , Ventrículos Cardíacos/diagnóstico por imagen , Humanos , Análisis Multivariante , Obesidad/complicaciones , Disfunción Ventricular Izquierda/diagnóstico por imagen , Función VentricularRESUMEN
STUDY OBJECTIVES: Transesophageal echocardiography (TEE) has a high sensitivity for the diagnosis of infective endocarditis (IE), but the prospective role of TEE when added to a careful clinical examination has not been well-studied. DESIGN: We compared the results of TEE to a clinical evaluation by an infectious disease specialist in 43 consecutive patients in whom TEE was ordered to rule out IE. Prior to TEE, the patients were classified on clinical grounds as to their likelihood of IE using a modification of the von Reyn criteria. Changes in management occurring as a result of TEE also were evaluated. MEASUREMENTS AND RESULTS: TEE was positive in 11 patients, negative in 29, and indeterminate in 3. TEE was positive in 6 (46%) of 13 high probability patients, 2 (67%) of medium probability patients, and 3 (11%) of 27 low probability patients. A change in management based on TEE occurred in 4 (31%) patients with high probability, in no patients with medium probability, and in 1 (4%) patient with low probability. CONCLUSIONS: TEE confirms IE in patients with high probability of IE and often leads to a management change. However, TEE is unlikely to establish the diagnosis or change management in patients with low probability.
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Ecocardiografía Transesofágica , Endocarditis Bacteriana/diagnóstico por imagen , Antibacterianos/uso terapéutico , Endocarditis Bacteriana/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Examen Físico , Probabilidad , Estudios ProspectivosRESUMEN
OBJECT: Aneurysmal subarachnoid hemorrhage (SAH) is associated with electrocardiographic abnormalities, regional or focal wall-motion abnormalities on echocardiograms, and/or increased creatine kinase MB isoenzyme (CK-MB) or cardiac troponin I (cTnI). The goal of this prospective study was to compare the sensitivity and specificity of cTnI with those of CK-MB in the prediction of left ventricular dysfunction on echocardiograms in patients with nontraumatic SAH. In addition, those patients with abnormal findings on their echocardiograms and elevated cTnI levels were further evaluated for the presence of coronary artery disease (CAD) by a cardiologist and to determine whether any left ventricular dysfunction that had been detected was reversible. METHODS: The authors obtained electrocardiograms and echocardiograms, and measured serial levels of cardiac enzymes (CK-MB and cTnI) in 43 patients with nontraumatic SAH. Patients with known CAD were excluded. Those patients found to have elevated enzyme levels and abnormal findings on their echocardiograms underwent additional evaluation for CAD. The sensitivity and specificity of both cTnI and CK-MB for detecting left ventricular function were determined. Twenty-eight percent of patients with SAH in the study had elevated cTnI levels within the first 24 hours after hemorrhage. Seven of the 12 patients had evidence of left ventricular dysfunction on echocardiograms. In all these patients a return to baseline function was found during follow-up examinations. The authors found that cTnI is much more sensitive than CK-MB (100% compared with 29%) in the detection of left ventricular dysfunction in patients with SAH. CONCLUSIONS: An elevated level of cTnI is a good indicator of left ventricular dysfunction in patients with SAH. In this study cardiac dysfunction was reversible and should not necessarily preclude these patients from undergoing operative interventions or becoming heart donors. Clinical management may require more aggressive hemodynamic monitoring until cardiac function returns to normal.
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Hemorragia Subaracnoidea/sangre , Troponina I/sangre , Adulto , Anciano , Biomarcadores , Catecolaminas/metabolismo , Creatina Quinasa/sangre , Ecocardiografía , Electrocardiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/sangre , Infarto del Miocardio/complicaciones , Mioglobina/sangre , Edema Pulmonar/diagnóstico , Edema Pulmonar/etiología , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad , Hemorragia Subaracnoidea/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Tropomiosina/sangreRESUMEN
BACKGROUND: Ischemic mitral regurgitation is known to be associated with poor long-term outcome after coronary artery bypass grafting; however, our ability to alter that outcome with intervention on the valve is unclear. The decision to address the valve is most challenging for patients with only moderate mitral regurgitation, particularly with the popularization of off-pump surgery. We therefore reviewed early and late outcomes of patients undergoing revascularization with or without mitral valve surgery. METHODS: Patients with moderate mitral regurgitation undergoing revascularization with and without mitral surgery between January 1991 and September 1996 were identified retrospectively. Operative notes were reviewed and patients with structural valve disease excluded. Perioperative events and late outcomes as determined by telephone contact and search of the social security death index (survival data 97% complete) were compared. RESULTS: One hundred seventy-six patients with moderate mitral regurgitation underwent revascularization alone (n = 142) or with mitral repair or replacement (n = 34). Those undergoing revascularization alone had a higher serum creatinine, somewhat less mitral regurgitation, and lower New York Heart Association functional class preoperatively. Operative mortality was greater with valve surgery (21% vs 9%, p = 0.047). Actuarial survival of both groups at 5 years was similar (52% vs 58%, p = NS); however, when stratified by preoperative functional class, those with more advanced heart failure preoperatively had superior late survival if their mitral valve was intervened upon. CONCLUSIONS: The late survival of patients with ischemic mitral regurgitation undergoing coronary revascularization remains poor; however, intervention on the mitral valve appears to benefit those with symptomatic heart failure.