Deceptive meaning of oxygen uptake measured at the anaerobic threshold in patients with systolic heart failure and atrial fibrillation
| Autor: | Damiano, Magrì, Piergiuseppe, Agostoni, Ugo, Corrà, Claudio, Passino, Domenico, Scrutinio, Pasquale, Perrone-Filardi, Michele, Correale, Gaia, Cattadori, Marco, Metra, Davide, Girola, Massimo F, Piepoli, AnnaMaria, Iorio, Michele, Emdin, Rosa, Raimondo, Federica, Re, Mariantonietta, Cicoira, Romualdo, Belardinelli, Marco, Guazzi, Giuseppe, Limongelli, Francesco, Clemenza, Gianfranco, Parati, Maria, Frigerio, Matteo, Casenghi, Angela B, Scardovi, Alessandro, Ferraironi, Andrea, Di Lenarda, Maurizio, Bussotti, Anna, Apostolo, Stefania, Paolillo, Rocco, La Gioia, Paola, Gargiulo, Pietro, Palermo, Chiara, Minà, Stefania, Farina, Elisa, Battaia, Antonello, Maruotti, Giuseppe, Pacileo, Mauro, Contini, Fabrizio, Oliva, Roberto, Ricci, Gianfranco, Sinagra, Corrado, Vassanelli |
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| Přispěvatelé: | Magrì, D, Agostoni, P, Corrà, U, Passino, C, Scrutinio, D, Perrone Filardi, P, Correale, M, Cattadori, G, Metra, M, Girola, D, Piepoli, M, Iorio, A, Emdin, M, Raimondo, R, Re, F, Cicoira, M, Belardinelli, R, Guazzi, M, Limongelli, G, Clemenza, F, Parati, G, Frigerio, M, Casenghi, M, Scardovi, A, Ferraironi, A, Di Lenarda, A, Bussotti, M, Apostolo, A, Paolillo, S, La Gioia, R, Gargiulo, P, Palermo, P, Minà, C, Farina, S, Battaia, E, Maruotti, A, Pacileo, G, Contini, M, Oliva, F, Ricci, R, Sinagra, G, Magrì, Damiano, Agostoni, Piergiuseppe, Corrà, Ugo, Passino, Claudio, Scrutinio, Domenico, Perrone Filardi, Pasquale, Correale, Michele, Cattadori, Gaia, Metra, Marco, Girola, Davide, Piepoli, Massimo F., Iorio, Annamaria, Emdin, Michele, Raimondo, Rosa, Re, Federica, Cicoira, Mariantonietta, Belardinelli, Romualdo, Guazzi, Marco, Limongelli, Giuseppe, Clemenza, Francesco, Parati, Gianfranco, Frigerio, Maria, Casenghi, Matteo, Scardovi, Angela B., Ferraironi, Alessandro, DI LENARDA, Andrea, Bussotti, Maurizio, Apostolo, Anna, Paolillo, Stefania, La Gioia, Rocco, Gargiulo, Paola, Palermo, Pietro, Minà, Chiara, Farina, Stefania, Battaia, Elisa, Maruotti, Antonello, Pacileo, Giuseppe, Contini, Mauro, Oliva, Fabrizio, Ricci, Roberto, Sinagra, Gianfranco, PERRONE FILARDI, Pasquale, Piepoli, Massimo F, Scardovi, Angela B, Di Lenarda, Andrea, Magri', D, Corra', U, PERRONE FILARDI, P, Correal, M, Piepoli, Mf, Iorio, Am, Raimonod, R, Cicoria, M, Scardovi, Ab, DI LENARDA, A, LA GIOIA, R, Mina', C, Sinagra, G. |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Male
Time Factors Digoxin Anaerobic Threshold Epidemiology medicine.medical_treatment Heart failure anaerobic threshold atrial fibrillation exercise prognosis Predictive Value of Test Kaplan-Meier Estimate Risk Factors Atrial Fibrillation Sinus rhythm Prospective Studies Multivariate Analysi Heart transplantation Ejection fraction Cardiology and Cardiovascular Medicine Atrial fibrillation Middle Aged Prognosis Italy Area Under Curve Cardiology Female Anaerobic exercise prognosi medicine.drug Human medicine.medical_specialty Time Factor Prognosi Reproducibility of Result Oxygen Consumption Predictive Value of Tests Internal medicine Aged Heart Failure Systolic Heart Transplantation Humans Multivariate Analysis Proportional Hazards Models ROC Curve Reproducibility of Results Exercise Test medicine business.industry Risk Factor medicine.disease Transplantation Prospective Studie Proportional Hazards Model business Systolic |
| Popis: | Background: Oxygen uptake at the anaerobic threshold (VO 2 AT), a submaximal exercise-derived variable, independent of patients' motivation, is a marker of outcome in heart failure (HF). However, previous evidence of VO 2 AT values paradoxically higher in HF patients with permanent atrial fibrillation (AF) than in those with sinus rhythm (SR) raised uncertainties. Design: We tested the prognostic role of VO 2 AT in a large cohort of systolic HF patients, focusing on possible differences between SR and AF. Methods: Altogether 2976 HF patients (2578 with SR and 398 with AF) were prospectively followed. Besides a clinical examination, each patient underwent a maximal cardiopulmonary exercise test (CPET). Results: The follow-up was analysed for up to 1500 days. Cardiovascular death or urgent cardiac transplantation occurred in 303 patients (250 (9.6%) patients with SR and 53 (13.3%) patients with AF, p=0.023). In the entire population, multivariate analysis including peak oxygen uptake (VO 2 ) showed a prognostic capacity (C-index) similar to that obtained including VO 2 AT (0.76 vs 0.72). Also, left ventricular ejection fraction, ventilation vs carbon dioxide production slope, β-blocker and digoxin therapy proved to be significant prognostic indexes. The receiver-operating characteristic (ROC) curves analysis showed that the best predictive VO 2 AT cut-off for the SR group was 11.7 ml/kg/min, while it was 12.8 ml/kg/min for the AF group. Conclusions: VO 2 AT, a submaximal CPET-derived parameter, is reliable for long-term cardiovascular mortality prognostication in stable systolic HF. However, different VO 2 AT cut-off values between SR and AF HF patients should be adopted. |
| Databáze: | OpenAIRE |
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