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Causes-of-death analysis of patients with cardiac resynchronization therapy: an analysis of the CeRtiTuDe cohort study

Eloi Marijon 1, 2 Christophe Leclercq 3, 4 Kumar Narayanan 2 Serge Boveda 5 Didier Klug 6 Jonathan Lacaze-Gadonneix 1 Pascal Defaye 7 Sophie Jacob 8 Olivier Piot 9 Jean-Claude Deharo 10 Marie-Cécile Perier 11 Genevieve Mulak 12 Jean-Sylvain Hermida 13 Paul Milliez 14 Daniel Gras 15 Olivier Cesari 16 Françoise Hidden-Lucet 17, 18 Frederic Anselme 19 Philippe Chevalier 20 Philippe Maury 21 Nicolas Sadoul 22 Pierre Bordachar 23 Serge Cazeau 24 Michel Chauvin 25 Jean-Philippe Empana 2 Xavier Jouven 2 Jean-Claude Daubert 4, 3 Jean-Yves Le Heuzey 2
1 HEGP - Hôpital Européen Georges Pompidou [APHP]
2 PARCC - UMR-S U970 - Paris-Centre de Recherche Cardiovasculaire
3 LTSI - Laboratoire Traitement du Signal et de l'Image
4 Service de cardiologie et maladies vasculaires
5 Clinique Pasteur et Groupe Rythmologie Stimulation Cardiaque/SFC
6 Hôpital cardiologique
7 Cardiac Stimulation and Rhythmology
8 DRPH/SRBE - Radiobiologie et épidémiologie
9 CCN - Centre cardiologique du Nord
10 Service de cardiologie
11 LRI - EA4062 - Laboratoire de Recherche en Imagerie : Méthodes d'imagerie des Échanges transcapillaires
12 Société française de cardiologie
13 CHU Amiens-Picardie
14 Hôpital Universitaire de Caen
15 Cardiopathies et mort subite [ERL 3147]
16 Clinique Saint Gatien
17 CHU Pitié-Salpêtrière [AP-HP]
18 ICAN - Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition
19 Service de cardiologie [CHU Rouen]
20 Service de cardiologie
21 CHU Toulouse [Toulouse]
22 Service de Cardiologie [CHRU Nancy]
23 IHU-LIRYC
24 Département de Rythmologie-Stimulation - Département de Rythmologie-Stimulation- Hôpital Saint-Joseph, Paris
25 Hôpital universitaire de Strasbourg
Abstract : AIMS: The choice of resynchronization therapy between with (CRT-D) and without (CRT-P) a defibrillator remains a contentious issue. Cause-of-death analysis among CRT-P, compared with CRT-D, patients could help evaluate the extent to which CRT-P patients would have additionally benefited from a defibrillator in a daily clinical practice. METHODS AND RESULTS: A total of 1705 consecutive patients implanted with a CRT (CRT-P: 535 and CRT-D: 1170) between 2008 and 2010 were enrolled in CeRtiTuDe, a multicentric prospective follow-up cohort study, with specific adjudication for causes of death at 2 years. Patients with CRT-P compared with CRT-D were older (P \textless 0.0001), less often male (P \textless 0.0001), more symptomatic (P = 0.0005), with less coronary artery disease (P = 0.003), wider QRS (P = 0.002), more atrial fibrillation (P \textless 0.0001), and more co-morbidities (P = 0.04). At 2-year follow-up, the annual overall mortality rate was 83.80 [95% confidence interval (CI) 73.41-94.19] per 1000 person-years. The crude mortality rate among CRT-P patients was double compared with CRT-D (relative risk 2.01, 95% CI 1.56-2.58). In a Cox proportional hazards regression analysis, CRT-P remained associated with increased mortality (hazard ratio 1.54, 95% CI 1.07-2.21, P = 0.0209), although other potential confounders may persist. By cause-of-death analysis, 95% of the excess mortality among CRT-P subjects was related to an increase in non-sudden death. CONCLUSION: When compared with CRT-D patients, excess mortality in CRT-P recipients was mainly due to non-sudden death. Our findings suggest that CRT-P patients, as currently selected in routine clinical practice, would not potentially benefit with the addition of a defibrillator
Keywords : Cardiac resynchronization Cardioverter defibrillator Competing risk Heart failure Sudden death
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CNRS | UNIV-RENNES1 | IRSN | UPMC | ICAN | UNIV-NANTES | UNIV-PARIS5 | LTSI | UNIV-AMU | USPC | UNIV-RENNES | COMUE-NORMANDIE | UNIROUEN | SORBONNE-UNIVERSITE | SU-MEDECINE | SU-SCIENCES | UNIV-PARIS | UP-SANTE | POLITIQUES-PUBLIQUES | SU-TI

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Eloi Marijon, Christophe Leclercq, Kumar Narayanan, Serge Boveda, Didier Klug, et al.. Causes-of-death analysis of patients with cardiac resynchronization therapy: an analysis of the CeRtiTuDe cohort study. European Heart Journal, Oxford University Press (OUP): Policy B, 2015, 36 (41), pp.2767--2776. ⟨10.1093/eurheartj/ehv455⟩. ⟨hal-01263258⟩

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