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1. Use of nonsteroidal anti-inflammatory drugs and breast cancer risk in a prospective cohort of postmenopausal women

Author

Agnès Fournier, Marc J. Gunter, Gianluca Severi, Manon Cairat, Laure Dossus, Marie Al Rahmoun, Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France, International Agency for Cancer Research (IACR), Centre de recherche en épidémiologie et santé des populations (CESP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut Gustave Roussy (IGR), Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Ligue Contre le Cancer Mutuelle Générale de l'Education Nationale, MGEN Institut Gustave-Roussy Institut National de la Santé et de la Recherche Médicale, Inserm, Ligue Contre le Cancer (support for the E3N cohort and PhD fellowship to Manon Cairat). Acknowledgements Disclaimer, and The research was carried out using data from the Inserm (French National Institutes for Health and Medical Research) E3N cohort, which was established and maintained with the support of the Mutuelle Générale de l’Education Nationale (MGEN), Gustave Roussy, and the French League against Cancer (LNCC). We are grateful to the study participants for their continued participation and to medical practitioners for providing pathology reports. We also thank all members of the E3N-EPIC study group, in particular Rafika Chaït, Ghizlane Esselma, Marie Fangon, Pascale Gerbouin-Rérolle, Lyan Hoang, Roselyn Gomes and the data management team, and Amandine Gelot for data management and/or technical assistance. The work reported in this paper was performed during Agnès Fournier’s term as a Visiting Scientist at the International Agency for Research on Cancer.

Subjects
medicine.medical_specialty, Proton pump inhibitors, Breast Neoplasms, [SDV.CAN]Life Sciences [q-bio]/Cancer, Comorbidity, Lower risk, lcsh:RC254-282, Cohort Studies, 03 medical and health sciences, 0302 clinical medicine, Breast cancer, Risk Factors, Surveys and Questionnaires, Internal medicine, medicine, Humans, Medical history, Prospective Studies, Prospective cohort study, Aged, Proportional Hazards Models, 030304 developmental biology, 0303 health sciences, Aspirin, business.industry, Proportional hazards model, Incidence, Incidence (epidemiology), Anti-Inflammatory Agents, Non-Steroidal, Hazard ratio, Nonsteroidal anti-inflammatory drugs, Middle Aged, medicine.disease, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, Postmenopausal women, 3. Good health, Postmenopause, 030220 oncology & carcinogenesis, Female, France, business, Research Article, Cohort study
Abstract

BackgroundAlthough anti-inflammatory agents could theoretically have anticancer properties, results from cohort studies on nonsteroidal anti-inflammatory drugs (NSAIDs) and breast cancer (BC) risk are inconsistent.MethodsWe investigated the association between NSAID use and BC incidence in the French E3N prospective cohort, which includes 98,995 women born between 1925 and 1950 and insured by a health insurance plan that covers mostly teachers. Self-reported information on lifestyle and medical history has been collected biennially by questionnaires and matched with data from a drug reimbursement database covering the period 2004–2014. Women who self-reported current NSAID use in the 2000 or 2002 questionnaires or with at least two reimbursements in any previous 3-month period were defined as exposed to NSAIDs. Multivariable Cox regression models were used to estimate hazard ratios (HRs) for the association of NSAID use with BC risk.ResultsIn the current analysis, 62,512 postmenopausal women were followed between 2004 and 2014 (9 years on average, starting at a mean age of 63 years; 2864 incident BC). In multivariable models, there was no statistically significant association between NSAID use and BC risk [HR = 1.00 (0.92–1.08), compared with non-exposed women]. The NSAID-BC associations did not differ by NSAID types, BC subtypes, risk factors, and comorbidities, nor by duration and dose of use. However, a statistically significant interaction was observed by proton pump inhibitor (PPI) drug use (Pinteraction = 0.01) whereby a decreased risk of BC with NSAID use was only observed among women who also used PPI before.ConclusionOnly women who used NSAIDs after having used PPI had a lower risk of BC. This result is novel and requires replication in other studies.

Published
2020
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2. The association between the incidence of postmenopausal breast cancer and concentrations at street-level of nitrogen dioxide and ultrafine particles

Author

Mark S. Goldberg, France Labrèche, Scott Weichenthal, Eric Lavigne, Marie-France Valois, Marianne Hatzopoulou, Keith Van Ryswyk, Maryam Shekarrizfard, Paul J. Villeneuve, Daniel Crouse, Marie-Élise Parent, Research Institute of the McGill University Hospital Centre, Department of Medecine [Montréal], McGill University = Université McGill [Montréal, Canada], Department of Environmental and Occupational Health, School of Public Health, Université de Montréal (UdeM), Department of Epidemiology, Biostatistics and Occupational Health [Montréal], Health Canada, Air Health Science Division, Health Canada, Department of Epidemiology, Public Health and Preventive Medicine, University of Ottawa [Ottawa], Department of Civil Engineering, University of Toronto, Department of Health Sciences, School of Mathematics and Statistics, Carleton University, Department of Sociology, and New Brunswick Institute for Research, Data, and Training, University of New Brunswick (UNB), Institut Armand Frappier (INRS-IAF), Réseau International des Instituts Pasteur (RIIP)-Institut National de la Recherche Scientifique [Québec] (INRS), and The data collection for the breast cancer study was funded by the Quebec Breast Cancer Foundation and analyses for this paper were funded by Health Canada. Dr. Weichenthal also received support from a GRePEC salary award funded by the Cancer Research Society, the Quebec Ministry of Economy, Science and Innovation, and les Fonds de Recherche du Québec- Santé (FRQS). Marie-Élise Parent held a career award from the FRQS

Subjects
Postmenopausal breast cancer, [SDV]Life Sciences [q-bio], 010501 environmental sciences, 01 natural sciences, Biochemistry, 0302 clinical medicine, Interquartile range, Ultrafine particle, Medicine, General Environmental Science, education.field_of_study, Air Pollutants, Incidence (epidemiology), Incidence, Quebec, Case-control study, Environmental exposure, Middle Aged, 3. Good health, Postmenopause, 030220 oncology & carcinogenesis, Female, Environmental Monitoring, Diesel exhaust, Population, Nitrogen Dioxide, [SDV.CAN]Life Sciences [q-bio]/Cancer, Breast Neoplasms, 03 medical and health sciences, Breast cancer, Traffic-related air pollution, Occupational Exposure, Humans, Particle Size, education, 0105 earth and related environmental sciences, Aged, business.industry, Odds ratio, Environmental Exposure, medicine.disease, [SDE.ES]Environmental Sciences/Environmental and Society, Logistic Models, Ultrafine particles, [SHS.ENVIR]Humanities and Social Sciences/Environmental studies, Case-Control Studies, Particulate Matter, business, Demography
Abstract

International audience; There is scant information as to whether traffic-related air pollution is associated with the incidence of breast cancer. Nitrogen dioxide (NO2) and ultrafine particles (UFPs

Published
2017
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3. Use of explicit ICD9-CM codes to identify adult severe sepsis: impacts on epidemiological estimates

Author

J. M. Amate-Blanco, Teresa López-Cuadrado, Carmen Bouza, Plan Nacional de I+D+i (España), Ministerio de Sanidad Política Social e Igualdad (España), Funding was provided by the Spanish National I + D Programme (grant number STPY 1346/09). The funding body had no further role in study design, data collection, analysis, interpretation, writing of the report or the decision to submit the paper for publication., Ministerio de Economía y Competitividad (España), and Ministerio de Sanidad, Servicios Sociales e Igualdad (España)

Subjects
Male, medicine.medical_specialty, Epidemiology, Administrative data, Critical Care and Intensive Care Medicine, Cohort Studies, 03 medical and health sciences, 0302 clinical medicine, International Classification of Diseases, Sepsis, Internal medicine, Humans, Medicine, Health services research, 030212 general & internal medicine, Severe sepsis, Aged, Outcome, Surveillance, business.industry, Mortality rate, Incidence (epidemiology), Incidence, Organ dysfunction, Hospital discharge database, 030208 emergency & critical care medicine, Middle Aged, Epidemiologic Studies, Editorial, Spain, Relative risk, Cohort, Emergency medicine, Female, medicine.symptom, Trends, business
Abstract

Background: Severe sepsis is a challenge for healthcare systems, and epidemiological studies are essential to assess its burden and trends. However, there is no consensus on which coding strategy should be used to reliably identify severe sepsis. This study assesses the use of explicit codes to define severe sepsis and the impacts of this on the incidence and in-hospital mortality rates. Methods: We examined episodes of severe sepsis in adults aged ≥18 years registered in the 2006–2011 national hospital discharge database, identified in an exclusive manner by two ICD-9-CM coding strategies: (1) those assigned explicit ICD-9-CM codes (995.92, 785.52); and (2) those assigned combined ICD-9-CM infection and organ dysfunction codes according to modified Martin criteria. The coding strategies were compared in terms of the populations they defined and their relative implementation. Trends were assessed using Joinpoint regression models and expressed as annual percentage change (APC). Results: Of 222 846 episodes of severe sepsis identified, 138 517 (62.2 %) were assigned explicit codes and 84 329 (37.8 %) combination codes; incidence rates were 60.6 and 36.9 cases per 100 000 inhabitants, respectively. Despite similar demographic characteristics, cases identified by explicit codes involved fewer comorbidities, fewer registered pathogens, greater extent of organ dysfunction (two or more organs affected in 60 % versus 26 % of cases) and higher in-hospital mortality (54.5 % versus 29 %; risk ratio 1.86, 95 % CI 1.83, 1.88). Between 2006 and 2011, explicit codes were increasingly implemented. Standardised incidence rates in this cohort increased over time with an APC of 12.3 % (95 % CI 4.4, 20.8); in the combination code cohort, rates increased by 3.8 % (95 % CI 1.3, 6.3). A decreasing trend in mortality was observed in both cohorts though the APC was −8.1 % (95 % CI −10.4, −5.7) in the combination code cohort and −3.5 % (95 % CI −3.9, −3.2) in the explicit code cohort. Conclusions: Our findings suggest greater and increasing use of explicit codes for adult severe sepsis in Spain. This trend will have substantial impacts on epidemiological estimates, because these codes capture cases featuring greater organ dysfunction and in-hospital mortality. We especially thank the Subdirección General de Información Sanitaria (Ministry of Health, Social Services and Equality) for providing the data used in this study. Funding was provided by the Spanish National I + D Programme (grant number STPY 1346/09). The funding body had no further role in study design, data collection, analysis, interpretation, writing of the report or the decision to submit the paper for publication. Sí

Published
2016

4. Underestimation of Leptospirosis Incidence in the French West Indies

Author

Sylvie Cassadou, Martine Ledrans, Pascale Bourhy, Philippe Quénel, Martina Escher, Claude Flamand, Jacques Rosine, Mathieu Picardeau, Institut de Veille Sanitaire (INVS), Cellule de l'Institut de Veille Sanitaire en régions Antilles Guyane, Cellule Interrégionale d'Epidémiologie Antilles-Guyane, Cellule interrégionale d'épidémiologie Antilles-Guyane [CIRE], Unité d'Epidémiologie, Institut Pasteur de la Guyane, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Centre National de Référence de la Leptospirose-Centre Collaborateur FAO/OMS pour l'épidémiologie de la leptospirose-Biologie des Spirochètes, Institut Pasteur [Paris], Institut de recherche, santé, environnement et travail (Irset), Université d'Angers (UA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), CIRE Antilles-Guyane - Gourbeyre, Centre Collaborateur FAO/OMS pour l'épidémiologie de la leptospirose, Centre National de Référence de la Leptospirose - National Reference Center Leptospirosis (CNR), Biologie des Spirochètes / Biology of Spirochetes, CIRE Antilles-Guyane - Fort de France, The authors received specific funding only from the Institut de Veille Sanitaire, their institution. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Conceived and designed the experiments: SC JR CF ME ML PB MP PQ. Performed the experi- ments: SC JR ME PB. Analyzed the data: SC JR CF. Contributed reagents/materials/analysis tools: PB MP. Wrote the paper: SC JR CF ME ML PB MP PQ. Organized and strenghtened the partners network: PQ ML., Jean-Baptiste Adrien, Hélène Bazus, Sylvie Boa, Fabrice Boulard, André Cabié, Arnaud Duthilly, Emilie Gaubert-Maréchal, Stéphanie Guyomard, Cécile Herrmann, Patrick Hoche- dez, Isabelle Lamaury, Claude Olive, Marion Petit-Sinturel, Raphaelle Théodose, the public health nurses of the CVAGS, all the General Practitionners of the two sentinel networks in Guadeloupe and Martinique, the ambulatory labs, the hospital labs, the hospital medical staffs, the Pasteur Institute of Guadeloupe, the Pasteur Institute of Paris and Jude Sweeney for the revision of the English text., Institut Pasteur [Paris] (IP), and École des Hautes Études en Santé Publique [EHESP] (EHESP)

Subjects
0301 basic medicine, Male, [SDV]Life Sciences [q-bio], Antibodies, Protozoan, Disease, Polymerase Chain Reaction, Dengue fever, 0302 clinical medicine, Environmental protection, Epidemiology, Enzyme-linked immunoassays, Child, Guadeloupe, Aged, 80 and over, Disease surveillance, Incidence (epidemiology), Incidence, lcsh:Public aspects of medicine, Middle Aged, Leptospirosis, Hospitals, 3. Good health, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Infectious Diseases, Child, Preschool, Female, France, Martinique, Adult, medicine.medical_specialty, lcsh:Arctic medicine. Tropical medicine, Adolescent, lcsh:RC955-962, 030231 tropical medicine, 030106 microbiology, Enzyme-Linked Immunosorbent Assay, Sensitivity and Specificity, 03 medical and health sciences, Young Adult, Environmental health, Agglutination Tests, medicine, Humans, Aged, Demography, business.industry, Public Health, Environmental and Occupational Health, Infant, Newborn, Outbreak, Infant, Correction, lcsh:RA1-1270, DNA, Protozoan, medicine.disease, Public and occupational health, Immunoglobulin M, business
Abstract

BACKGROUND:Leptospirosis is a neglected zoonosis affecting mainly tropical and subtropical regions worldwide, particularly South America and the Caribbean. As in many other countries, under-reporting of cases was suspected in the French West Indies because of inadequate access to diagnostic tests for the general population. METHODOLOGY/PRINCIPAL FINDINGS:In order to estimate the real incidence of leptospirosis in Guadeloupe and Martinique, a study was performed in 2011 using the three prevailing available biological tests for diagnosis: Microscopic Agglutination Test (MAT), IgM ELISA and PCR. The study investigated inpatients and outpatients and used active case ascertainment from data provided by a general practitioners' sentinel network. The epidemiology of the disease was also described in terms of severity and demographic characteristics. Leptospirosis incidence was estimated at 69.4 (95%CI 47.6-91.1) and 60.6 (95%CI 36.3-85.0) annual cases per 100,000 inhabitants in Guadeloupe and Martinique, respectively, which was 3 and 4 times higher than previous estimations. CONCLUSION/SIGNIFICANCE:Inclusion of PCR and IgM ELISA tests for diagnosis of leptospirosis resulted in improved sensitivity in comparison with MAT alone. Our results highlighted the substantial health burden of the disease in these two territories and the importance of access to appropriate laboratory tests. Based on our results, PCR and IgM ELISA tests have now been included in the list of tests reimbursed by the national system of social security insurance in France. Our results also underline the relevance of implementing an integrated strategy for the surveillance, prevention and control of leptospirosis in the French West Indies.

Published
2016
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5. Impact of early complications on outcomes in patients with implantable cardioverter-defibrillator for primary prevention

Author

Maria Soledad Ascoeta, Marie-Cécile Perier, Olivier Piot, Daniel Gras, Laurent Fauchier, Nicolas Sadoul, Pascal Defaye, Didier Klug, Frankie Beganton, Eloi Marijon, Serge Boveda, Vincent Algalarrondo, Dominique Babuty, Christophe Leclercq, Jean-Claude Deharo, Pierre Bordachar, Centre cardiologique du Nord (CCN), Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Centre Hospitalier Universitaire [Grenoble] (CHU), Hôpital cardiologique, Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Paris-Centre de Recherche Cardiovasculaire (PARCC - UMR-S U970), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Nouvelles Cliniques Nantaises, Hôpital Antoine Béclère, Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de cardiologie, Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de cardiologie et maladies vasculaires [Rennes] = Cardiac, Thoracic, and Vascular Surgery [Rennes], CHU Pontchaillou [Rennes], Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Hôpital Haut-Lévêque, Université Sciences et Technologies - Bordeaux 1-CHU Bordeaux [Bordeaux], Service de Cardiologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Clinique Pasteur et Groupe Rythmologie Stimulation Cardiaque/SFC, Clinique Pasteur [Toulouse], Editorial support on the final version of the paper was provided by MedLink Healthcare Communications Ltd and was funded by the authors. ADREC (Association Dyonisienne de Recherche et Enseignement de Cardiologie) provided secretarial assistance., Centre cardiologique du Nord, Hôpital Européen Georges Pompidou [APHP] ( HEGP ), Centre Hospitalier Universitaire [Grenoble] ( CHU ), Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ), Paris-Centre de Recherche Cardiovasculaire ( PARCC - U970 ), Hôpital Européen Georges Pompidou [APHP] ( HEGP ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Université Paris-Sud - Paris 11 ( UP11 ) -Assistance publique - Hôpitaux de Paris (AP-HP), Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille ( APHM ) - Hôpital de la Timone [CHU - APHM] ( TIMONE ), Laboratoire Traitement du Signal et de l'Image ( LTSI ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service de cardiologie et maladies vasculaires, Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Hôpital Pontchaillou-CHU Pontchaillou [Rennes], CHU de Tours, Centre Hospitalier Régional Universitaire de Nancy ( CHRU Nancy ), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Université Sciences et Technologies - Bordeaux 1 (UB)-CHU Bordeaux [Bordeaux], Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Université Paris Descartes - Paris 5 (UPD5)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-CHU Pontchaillou [Rennes], and CHU Bordeaux [Bordeaux]-Université Sciences et Technologies - Bordeaux 1

Subjects
Male, Pediatrics, medicine.medical_treatment, [SDV]Life Sciences [q-bio], Coronary Artery Disease, 030204 cardiovascular system & hematology, Coronary artery disease, 0302 clinical medicine, Postoperative Complications, Risk Factors, Medicine, 030212 general & internal medicine, Registries, education.field_of_study, Hematoma, Primary prevention, Sudden death, Incidence (epidemiology), Incidence, Middle Aged, Implantable cardioverter-defibrillator, 3. Good health, Defibrillators, Implantable, Female, France, Cardiology and Cardiovascular Medicine, Cardiomyopathy, Dilated, medicine.medical_specialty, Population, Cardiac resynchronization therapy, Electric Countershock, Risk Assessment, 03 medical and health sciences, Physiology (medical), Humans, Mortality, education, Aged, [ SDV ] Life Sciences [q-bio], business.industry, Implantable cardiac-defibrillator, Odds ratio, medicine.disease, Survival Analysis, Equipment Failure Analysis, Death, Sudden, Cardiac, Tachycardia, Ventricular, Morbidity, Complication, business
Abstract

International audience; Background - The lifesaving benefit of implantable cardioverter-defibrillators (ICDs) has been demonstrated. Their use has increased considerably in the past decade, but related complications have become a major concern. Objective - The purpose of this study was to assess the incidence and effect on outcomes of early (≤30 days) complications after ICD implantation for primary prevention in a large French population. Methods - We analyzed data from 5539 patients from the multicenter French DAI-PP (Défibrillateur Automatique Implantable-Prévention Primaire) registry (2002-2012) who had coronary artery disease or dilated cardiomyopathy and were implanted with an ICD for primary prevention. Results - Overall, early complications occurred in 707 patients (13.5%), mainly related to lead dislodgment or hematoma (57%). Independent factors associated with occurrence of early complications were severe renal impairment (odds ratio [OR] 1.66, 95% confidence interval [CI] 1.17-2.37, P = .02), age ≥75 years (OR 1.01, 95% CI 1.00-1.02, P = .03), cardiac resynchronization therapy (OR 1.58, 95% CI 1.16-2.17, P = .01), and anticoagulant therapy (OR 1.28, 95% CI 1.02-1.61, P = .03). During a mean ± SD follow-up of 3.1 ± 2.3 years, 824 (15.8%) patients experienced ≥1 late complication (>30 days), and 782 (14.9%) patients died. After adjustment, early complications remained associated with occurrence of late complications (OR 2.15, 95% CI 1.73-2.66, P < .0001) and mortality (OR 1.70, 95% CI 1.34-2.17, P = .003). Conclusion - Early complications are common after ICD implantation for primary prevention, occurring in 1 in 7 patients, and are associated with an increased risk of late complications and overall mortality. Further studies are needed to investigate the underlying mechanisms of such associations.

Published
2016
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