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Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings
BACKGROUND: The efficacy of implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy-defibrillator (CRT-D) therapy has already been established in clinical trials but their effectiveness in several clinical settings remains undetermined. This study aimed to assess the effec...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4364497/ https://www.ncbi.nlm.nih.gov/pubmed/25888219 http://dx.doi.org/10.1186/s12872-015-0016-2 |
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author | Migowski, Arn Ribeiro, Antonio Luiz Carvalho, Marilia Sá Azevedo, Vitor Manuel Pereira Chaves, Rogério Brant Martins Hashimoto, Lucas de Aquino Xavier, Carolina de Aquino Xavier, Regina Maria de Aquino |
author_facet | Migowski, Arn Ribeiro, Antonio Luiz Carvalho, Marilia Sá Azevedo, Vitor Manuel Pereira Chaves, Rogério Brant Martins Hashimoto, Lucas de Aquino Xavier, Carolina de Aquino Xavier, Regina Maria de Aquino |
author_sort | Migowski, Arn |
collection | PubMed |
description | BACKGROUND: The efficacy of implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy-defibrillator (CRT-D) therapy has already been established in clinical trials but their effectiveness in several clinical settings remains undetermined. This study aimed to assess the effectiveness of ICD and CRT-D therapies within the Brazilian National Health System (SUS). METHODS: All patients who underwent ICD or CRT-D implantation within the SUS from 2001 to 2007 were included in the study. We compared estimated Kaplan-Meier survival curves using the Peto’s test. Prognostic factors were selected using Cox’s models. RESULTS: There were included 3,295 patients in the ICD group and 681 patients in the CRT-D group. Cardiac causes accounted for 79% of all deaths in both groups and Chagas’ heart disease accounted for 31% of these deaths. In the CRT-D group, survival significantly decreased around the fourth year of follow-up, with a decrease from 59.5% to 38.3% in 5.5 months. Transvenous implantation technique was used in 62% of CRT-D patients. In-hospital case-fatality rates were higher in those undergoing surgical implantation (5.3%) than those undergoing transvenous implantation (1.6%) (p = 0.02). CONCLUSIONS: The results show that short-term, medium-term and long-term effectiveness of ICD therapy appears to be similar to that evidenced in clinical trials. In the CRT-D group, in-hospital case-fatality and 30-day case-fatality were higher than those reported in other studies. Surgical epicardial implantation technique was performed in this group at a higher frequency than that reported in the literature and was associated with poorer short-term prognosis. |
format | Online Article Text |
id | pubmed-4364497 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-43644972015-03-19 Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings Migowski, Arn Ribeiro, Antonio Luiz Carvalho, Marilia Sá Azevedo, Vitor Manuel Pereira Chaves, Rogério Brant Martins Hashimoto, Lucas de Aquino Xavier, Carolina de Aquino Xavier, Regina Maria de Aquino BMC Cardiovasc Disord Research Article BACKGROUND: The efficacy of implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy-defibrillator (CRT-D) therapy has already been established in clinical trials but their effectiveness in several clinical settings remains undetermined. This study aimed to assess the effectiveness of ICD and CRT-D therapies within the Brazilian National Health System (SUS). METHODS: All patients who underwent ICD or CRT-D implantation within the SUS from 2001 to 2007 were included in the study. We compared estimated Kaplan-Meier survival curves using the Peto’s test. Prognostic factors were selected using Cox’s models. RESULTS: There were included 3,295 patients in the ICD group and 681 patients in the CRT-D group. Cardiac causes accounted for 79% of all deaths in both groups and Chagas’ heart disease accounted for 31% of these deaths. In the CRT-D group, survival significantly decreased around the fourth year of follow-up, with a decrease from 59.5% to 38.3% in 5.5 months. Transvenous implantation technique was used in 62% of CRT-D patients. In-hospital case-fatality rates were higher in those undergoing surgical implantation (5.3%) than those undergoing transvenous implantation (1.6%) (p = 0.02). CONCLUSIONS: The results show that short-term, medium-term and long-term effectiveness of ICD therapy appears to be similar to that evidenced in clinical trials. In the CRT-D group, in-hospital case-fatality and 30-day case-fatality were higher than those reported in other studies. Surgical epicardial implantation technique was performed in this group at a higher frequency than that reported in the literature and was associated with poorer short-term prognosis. BioMed Central 2015-03-13 /pmc/articles/PMC4364497/ /pubmed/25888219 http://dx.doi.org/10.1186/s12872-015-0016-2 Text en © Migowski et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Migowski, Arn Ribeiro, Antonio Luiz Carvalho, Marilia Sá Azevedo, Vitor Manuel Pereira Chaves, Rogério Brant Martins Hashimoto, Lucas de Aquino Xavier, Carolina de Aquino Xavier, Regina Maria de Aquino Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title | Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title_full | Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title_fullStr | Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title_full_unstemmed | Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title_short | Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
title_sort | seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4364497/ https://www.ncbi.nlm.nih.gov/pubmed/25888219 http://dx.doi.org/10.1186/s12872-015-0016-2 |
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