- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00037349
Heart Rate Recovery and Mortality
Descripción general del estudio
Estado
Condiciones
Descripción detallada
BACKGROUND:
Although there has been considerable attention paid to the prognostic significance of the heart rate rise during exercise, only recently has it been noted that the heart rate fall after exercise, or "heart-rate recovery," may be an even more powerful predictor of outcome. Heart-rate recovery after exercise is a consequence of central reactivation of vagal tone. As impaired parasympathetic function has been associated with increased risk of death, the study tests the hypothesis that an impaired heart-rate recovery is a powerful and independent predictor of mortality.
DESIGN NARRATIVE:
The overall aim of this project was to use heart-rate recovery to substantially improve the prognostic value of the exercise test. The specific aims of this project were: 1) Derive biologically meaningful mathematical models of heart-rate recovery. Data from over 20,000 patients who had undergone exercise testing at Cleveland Clinic Foundation between 1990 and 1998 were used; all of these patients had had their tests performed on exercise workstations which recorded heart rates every 10 seconds during and after exercise. Heart-rate recovery measures were the difference between heart rate at peak exercise and heart rate at different points during recovery. Modeling was based on exponential families, using stepwise selection, bootstrapping, and information theory approaches. Correlates of different patterns of heart rate recovery were determined. 2) Using the results of modeling of heart-recovery derived from the work in Specific Aim 1, determined a prognostically defined optimal definition of abnormal heart rate recovery and demonstrated that an abnormal heart rate recovery was a powerful and independent predictor of mortality in diverse patient groups. Data from exercise tolerance tests of over 40,000 patients studied at the Cleveland Clinic Foundation between 1990 and 1999 were analyzed. Statistical methods used included the nonparametric Kaplan-Meier product limit method and the Cox proportional hazards model with bootstrap validation, which included use of the random forest technique. 3) Using completely parametric techniques, developed predictive survival models in which heart-rate recovery was included along with clinical data and other exercise findings, including exercise capacity and heart rate changes during exercise. The advantages of the parametric technique included: a) it allowed for modeling of nonproportional hazards that might permit differential strength of effect at different follow-up times for different sets of risk factors; b) it generated absolute risk, not just relative risk; and c) it permitted patient-specific prediction.
The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.
Tipo de estudio
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Plan de estudios
¿Cómo está diseñado el estudio?
Colaboradores e Investigadores
Patrocinador
Investigadores
- Michael Lauer, The Cleveland Clinic
Publicaciones y enlaces útiles
Publicaciones Generales
- Aktas MK, Ozduran V, Pothier CE, Lang R, Lauer MS. Global risk scores and exercise testing for predicting all-cause mortality in a preventive medicine program. JAMA. 2004 Sep 22;292(12):1462-8. doi: 10.1001/jama.292.12.1462.
- Lauer MS, Alexe S, Pothier Snader CE, Blackstone EH, Ishwaran H, Hammer PL. Use of the logical analysis of data method for assessing long-term mortality risk after exercise electrocardiography. Circulation. 2002 Aug 6;106(6):685-90. doi: 10.1161/01.cir.0000024410.15081.fd.
- Pereira JJ, Lauer MS, Bashir M, Afridi I, Blackstone EH, Stewart WJ, McCarthy PM, Thomas JD, Asher CR. Survival after aortic valve replacement for severe aortic stenosis with low transvalvular gradients and severe left ventricular dysfunction. J Am Coll Cardiol. 2002 Apr 17;39(8):1356-63. doi: 10.1016/s0735-1097(02)01759-x.
- Watanabe J, Thamilarasan M, Blackstone EH, Thomas JD, Lauer MS. Heart rate recovery immediately after treadmill exercise and left ventricular systolic dysfunction as predictors of mortality: the case of stress echocardiography. Circulation. 2001 Oct 16;104(16):1911-6.
- Lauer MS. Exercise testing for assessment of autonomic function. Am Heart J. 2002 Oct;144(4):580-2. doi: 10.1067/mhj.2002.124830. No abstract available.
- Frolkis JP, Pothier CE, Blackstone EH, Lauer MS. Frequent ventricular ectopy after exercise as a predictor of death. N Engl J Med. 2003 Feb 27;348(9):781-90. doi: 10.1056/NEJMoa022353. Erratum In: N Engl J Med. 2003 Apr 10;348(15):1508.
- Shishehbor MH, Baker DW, Blackstone EH, Lauer MS. Association of educational status with heart rate recovery: a population-based propensity analysis. Am J Med. 2002 Dec 1;113(8):643-9. doi: 10.1016/s0002-9343(02)01324-4.
- Lauer MS, Froelicher V. Abnormal heart-rate recovery after exercise. Lancet. 2002 Oct 12;360(9340):1176-7. doi: 10.1016/S0140-6736(02)11224-4. No abstract available.
- Ellis K, Pothier CE, Blackstone EH, Lauer MS. Is systolic blood pressure recovery after exercise a predictor of mortality? Am Heart J. 2004 Feb;147(2):287-92. doi: 10.1016/j.ahj.2003.08.009.
- Vivekananthan DP, Blackstone EH, Pothier CE, Lauer MS. Heart rate recovery after exercise is a predictor of mortality, independent of the angiographic severity of coronary disease. J Am Coll Cardiol. 2003 Sep 3;42(5):831-8. doi: 10.1016/s0735-1097(03)00833-7.
- Cheng YJ, Lauer MS, Earnest CP, Church TS, Kampert JB, Gibbons LW, Blair SN. Heart rate recovery following maximal exercise testing as a predictor of cardiovascular disease and all-cause mortality in men with diabetes. Diabetes Care. 2003 Jul;26(7):2052-7. doi: 10.2337/diacare.26.7.2052.
- Seshadri N, Gildea TR, McCarthy K, Pothier C, Kavuru MS, Lauer MS. Association of an abnormal exercise heart rate recovery with pulmonary function abnormalities. Chest. 2004 Apr;125(4):1286-91. doi: 10.1378/chest.125.4.1286.
- Chen MS, Blackstone EH, Pothier CE, Lauer MS. Heart rate recovery and impact of myocardial revascularization on long-term mortality. Circulation. 2004 Nov 2;110(18):2851-7. doi: 10.1161/01.CIR.0000147539.39775.F4. Epub 2004 Oct 25.
- Christopher Jones R, Pothier CE, Blackstone EH, Lauer MS. Prognostic importance of presenting symptoms in patients undergoing exercise testing for evaluation of known or suspected coronary disease. Am J Med. 2004 Sep 15;117(6):380-9. doi: 10.1016/j.amjmed.2004.06.004.
- O'Neill JO, Young JB, Pothier CE, Lauer MS. Severe frequent ventricular ectopy after exercise as a predictor of death in patients with heart failure. J Am Coll Cardiol. 2004 Aug 18;44(4):820-6. doi: 10.1016/j.jacc.2004.02.063.
- Lauer MS. Clinical epidemiology, clinical care, and the public's health. Mayo Clin Proc. 2004 Aug;79(8):975-6. doi: 10.4065/79.8.975. No abstract available.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 1164 (Otro número de subvención/financiamiento: Nova Scotia Health Research Foundation EGMS)
- R01HL066004 (Subvención/contrato del NIH de EE. UU.)
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
Ensayos clínicos sobre Enfermedades cardíacas
-
Region SkaneInscripción por invitaciónInsuficiencia cardíaca New York Heart Association (NYHA) Clase II | Insuficiencia cardíaca New York Heart Association (NYHA) Clase IIISuecia
-
Medical University of BialystokInstitute of Cardiology, Warsaw, Poland; Medical University of Lodz; Poznan University... y otros colaboradoresAún no reclutandoInsuficiencia Cardíaca Sistólica | Insuficiencia cardíaca con fracción de eyección reducida | Insuficiencia cardíaca Clase IV de la New York Heart Association | Insuficiencia cardíaca Clase III de la New York Heart AssociationPolonia
-
Novartis PharmaceuticalsTerminadoPacientes que completaron con éxito el período de tratamiento de 12 meses del estudio principal (receptores de Novo Heart) que estaban interesados en recibir tratamiento con EC-MPS
-
University of WashingtonAmerican Heart AssociationTerminadoInsuficiencia cardíaca, congestiva | Alteración mitocondrial | Insuficiencia cardíaca Clase IV de la New York Heart AssociationEstados Unidos