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1.
J Electrocardiol ; 51(5): 756-759, 2018.
Article in English | MEDLINE | ID: mdl-30177308

ABSTRACT

Algorithms used for the differential diagnosis of wide QRS complex tachycardia are extremely important in clinical practice, but they have limitations and should be applied with caution. We describe a case of a patient with positive serology for Chagas disease and normal echocardiogram who presented an episode of wide QRS complex tachycardia. It was initially diagnosed as sustained ventricular tachycardia using the Brugada and Vereckei algorithms and it was sent to the reference service for the implant of a cardioverter defibrillator. However, the clinical history, electrocardiogram in sinus rhythm and the electrophysiological study were fundamental to the correct diagnosis and treatment of a posterolateral atrioventricular accessory pathway.


Subject(s)
Chagas Disease/complications , Electrocardiography , Tachycardia, Ventricular/etiology , Accessory Atrioventricular Bundle , Algorithms , Diagnosis, Differential , Female , Humans , Middle Aged , Tachycardia, Atrioventricular Nodal Reentry/diagnosis , Tachycardia, Ventricular/diagnosis
2.
Am Heart J ; 176: 10-6, 2016 Jun.
Article in English | MEDLINE | ID: mdl-27264215

ABSTRACT

BACKGROUND: Atrial fibrillation (AF) is an important and growing public health problem worldwide, but data about its actual prevalence, therapeutic management, and clinical outcomes in middle- to low-income countries are scarce. DESIGN: The First Brazilian Cardiovascular Registry of Atrial Fibrillation (the RECALL study) will assess demographic characteristics and evidence-based practice of a representative sample of patients with AF in Brazil. The prospective, multicenter registry has a planned sample size of around 5,000 patients at approximately 80 sites. Eligibility criteria include age >18 years and permanent, paroxysmal, or persistent AF documented by electrocardiogram, 24-hour Holter monitoring, or device interrogation. Patients will be followed up through 1 year after enrollment. Information on laboratory tests, echocardiographic data, medication use, and clinical outcomes will be obtained. Various aspects of the population will be described, including demographic characteristics; antithrombotic therapies; antiarrhythmic agents; level of control of international normalized ratio (by average time within the therapeutic range) among patients using vitamin K antagonists; rates of warfarin discontinuation; outcomes such as death, stroke, systemic embolism, and major bleeding within 1 year after enrollment in the study; and rates of electrical cardioversion, percutaneous ablation of AF, ablation of the atrioventricular junction, and pacemaker/cardioverter-defibrillator implantation. SUMMARY: RECALL is the first prospective, multicenter registry of AF in Brazil. This study will provide important information about demographics, practice patterns, treatments, and associated outcomes in patients with AF. The results of this registry will also allow Brazilian data to be put in perspective with other AF registries across the world and provide opportunities to improve care of patients with AF in Brazil.


Subject(s)
Anti-Arrhythmia Agents/therapeutic use , Anticoagulants , Atrial Fibrillation , Electric Countershock , Patient Care Management , Adult , Anticoagulants/administration & dosage , Anticoagulants/adverse effects , Atrial Fibrillation/diagnosis , Atrial Fibrillation/epidemiology , Atrial Fibrillation/therapy , Brazil/epidemiology , Electric Countershock/methods , Electric Countershock/statistics & numerical data , Electrocardiography/methods , Female , Hemorrhage/chemically induced , Hemorrhage/prevention & control , Humans , International Normalized Ratio , Male , Patient Care Management/methods , Patient Care Management/organization & administration , Prospective Studies , Registries , Research Design
3.
Arq Bras Cardiol ; 120(1): e20220892, 2023 01 23.
Article in English, Portuguese | MEDLINE | ID: mdl-36700596
4.
Arq Bras Cardiol ; 120(6): e20230269, 2023 06 26.
Article in English, Portuguese | MEDLINE | ID: mdl-37377258
5.
Arq Bras Cardiol ; 101(2): 101-5, 2013 Aug.
Article in English, Portuguese | MEDLINE | ID: mdl-24030077

ABSTRACT

BACKGROUND: There are innumerous indicators to assure the quality of a service. However, medical competence and the proper performance of a procedure determine its final quality. The Brazilian Society of Cardiac Arrhythmias recommends minimum parameters necessary to guarantee the excellence of ambulatory electrocardiographic monitoring services. OBJECTIVE: To recommend minimum medical competences and the information required to issue a Holter monitoring report. METHODS: This study was grounded in the concept of evidence-based medicine and, when evidence was not available, the opinion of a writing committee was used to formulate the recommendation. That committee consisted of professionals with experience on the difficulties of the method and management in providing services in that area. RESULTS: The professional responsible for the Holter monitoring analysis should know cardiovascular pathologies and have consistent formation on electrocardiography, including cardiac arrhythmias and their differential diagnoses. The report should be written in a clear and objective way. The minimum parameters that comprise a Holter report should include statistics of the exam, as well as quantification and analysis of the rhythm disorders observed during monitoring. CONCLUSION: Ambulatory electrocardiographic monitoring should be performed by professionals knowledgeable about electrocardiographic analysis, whose report should comprise the minimum parameters mentioned in this document.


Subject(s)
Arrhythmias, Cardiac/diagnosis , Electrocardiography, Ambulatory/standards , Evidence-Based Medicine , Brazil , Cardiology/standards , Humans , Societies, Medical/standards
6.
Arq. bras. cardiol ; Arq. bras. cardiol;120(1): e20220892, 2023. tab, graf
Article in Portuguese | LILACS, CONASS, SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1420149
7.
Marin-Neto, José Antonio; Rassi Jr, Anis; Oliveira, Gláucia Maria Moraes; Correia, Luís Claudio Lemos; Ramos Júnior, Alberto Novaes; Luquetti, Alejandro Ostermayer; Hasslocher-Moreno, Alejandro Marcel; Sousa, Andréa Silvestre de; Paola, Angelo Amato Vincenzo de; Sousa, Antônio Carlos Sobral; Ribeiro, Antonio Luiz Pinho; Correia Filho, Dalmo; Souza, Dilma do Socorro Moraes de; Cunha-Neto, Edecio; Ramires, Felix Jose Alvarez; Bacal, Fernando; Nunes, Maria do Carmo Pereira; Martinelli Filho, Martino; Scanavacca, Maurício Ibrahim; Saraiva, Roberto Magalhães; Oliveira Júnior, Wilson Alves de; Lorga-Filho, Adalberto Menezes; Guimarães, Adriana de Jesus Benevides de Almeida; Braga, Adriana Lopes Latado; Oliveira, Adriana Sarmento de; Sarabanda, Alvaro Valentim Lima; Pinto, Ana Yecê das Neves; Carmo, Andre Assis Lopes do; Schmidt, Andre; Costa, Andréa Rodrigues da; Ianni, Barbara Maria; Markman Filho, Brivaldo; Rochitte, Carlos Eduardo; Macêdo, Carolina Thé; Mady, Charles; Chevillard, Christophe; Virgens, Cláudio Marcelo Bittencourt das; Castro, Cleudson Nery de; Britto, Constança Felicia De Paoli de Carvalho; Pisani, Cristiano; Rassi, Daniela do Carmo; Sobral Filho, Dário Celestino; Almeida, Dirceu Rodrigues de; Bocchi, Edimar Alcides; Mesquita, Evandro Tinoco; Mendes, Fernanda de Souza Nogueira Sardinha; Gondim, Francisca Tatiana Pereira; Silva, Gilberto Marcelo Sperandio da; Peixoto, Giselle de Lima; Lima, Gustavo Glotz de; Veloso, Henrique Horta; Moreira, Henrique Turin; Lopes, Hugo Bellotti; Pinto, Ibraim Masciarelli Francisco; Ferreira, João Marcos Bemfica Barbosa; Nunes, João Paulo Silva; Barreto-Filho, José Augusto Soares; Saraiva, José Francisco Kerr; Lannes-Vieira, Joseli; Oliveira, Joselina Luzia Menezes; Armaganijan, Luciana Vidal; Martins, Luiz Cláudio; Sangenis, Luiz Henrique Conde; Barbosa, Marco Paulo Tomaz; Almeida-Santos, Marcos Antonio; Simões, Marcos Vinicius; Yasuda, Maria Aparecida Shikanai; Moreira, Maria da Consolação Vieira; Higuchi, Maria de Lourdes; Monteiro, Maria Rita de Cassia Costa; Mediano, Mauro Felippe Felix; Lima, Mayara Maia; Oliveira, Maykon Tavares de; Romano, Minna Moreira Dias; Araujo, Nadjar Nitz Silva Lociks de; Medeiros, Paulo de Tarso Jorge; Alves, Renato Vieira; Teixeira, Ricardo Alkmim; Pedrosa, Roberto Coury; Aras Junior, Roque; Torres, Rosalia Morais; Povoa, Rui Manoel dos Santos; Rassi, Sergio Gabriel; Alves, Silvia Marinho Martins; Tavares, Suelene Brito do Nascimento; Palmeira, Swamy Lima; Silva Júnior, Telêmaco Luiz da; Rodrigues, Thiago da Rocha; Madrini Junior, Vagner; Brant, Veruska Maia da Costa; Dutra, Walderez Ornelas; Dias, João Carlos Pinto.
Arq. bras. cardiol ; Arq. bras. cardiol;120(6): e20230269, 2023. tab, graf
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1447291
9.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 25(4): 219-226, out.-dez.2015. tab, graf
Article in Portuguese | LILACS | ID: lil-789234

ABSTRACT

Arritmias supraventriculares são distúrbios do ritmo comuns na prática clínica diária. As duas principais opções de tratamento são o medicamentoso, considerado de segunda linha devido à baixa eficácia, necessidade de uso por longa data, efeitos colaterais, interaçãomedicamentosa e potencial efeito proarrítmico; e o invasivo com ablação, atualmente o padrão ouro devido a baixa complicação e alta eficácia. As arritmias ventriculares são menos comuns, podendo estar associadas a prognóstico e risco de morte súbita cardíacadiferentes, de acordo com a presença ou não de alteração estrutural cardíaca. A ablação por cateter possui papel diferente no tratamento das arritmias ventriculares nestes dois grupos de pacientes. O objetivo desta revisão é avaliar o papel da ablação por cateter,resumindo as principais indicações deste procedimento no manuseio das arritmias supraventriculares e ventriculares...


Supraventricular arrhythmias are common rhythm disturbances in daily clinical practice. The two main treatment options are pharmacological, and catheter ablation. Pharmacologicaltreatment is considered the second line option due to its low efficacy, the need for long-term adherence, the risk of side effects, drug interactions, and potential proarrhythmic effects. Catheter ablation is currently the gold standard therapy, due to its low complications and high efficacy. Ventricular arrhythmias are less common, and may be associated with different prognoses and levels of risk of sudden cardiac death, depending on the presence or absence of structural heart disease. Catheter ablation has a different role in the treatment of ventricular arrhythmias in these two groups of patients. The objective ofthis review is to evaluate the role of catheter ablation, summarizing the main indications of this procedure in the management of supraventricular and ventricular arrhythmia...


Subject(s)
Humans , Catheter Ablation/methods , Arrhythmias, Cardiac/diagnosis , Arrhythmias, Cardiac/therapy , Tachycardia, Ventricular/diagnosis , Tachycardia, Ventricular/therapy , Electrocardiography/methods , Atrial Fibrillation/physiopathology , Atrial Flutter/diagnosis , Atrial Flutter/therapy , Death, Sudden, Cardiac/prevention & control , Drug Therapy/methods , Heart Ventricles
10.
Int J Cardiol Heart Vasc ; 9: 85-88, 2015 Dec 07.
Article in English | MEDLINE | ID: mdl-28785714

ABSTRACT

BACKGROUND: Clinical independent predictors of inducible sustained ventricular tachycardia (VT) during electrophysiologic study (EPS) are not known in patients with chronic Chagas' heart disease. The purpose of this investigation was to fill this gap. METHODS: The medical charts of 47 patients with a positive serology for Chagas' disease who had undergone EPS between September 2006 and July 2012 at our institution were reviewed. Reasons for the EPS were the presence of unexplained syncope, non-sustained ventricular tachycardia (NSVT) on either resting ECG or 24 h-Holter monitoring as well as a LVEF < 55% and > 35% at echocardiography. A stepwise logistic regression analysis was performed to identify noninvasive predictors of inducible sustained VT/ventricular fibrillation during EPS. RESULTS: On univariate analysis, syncopal episodes (p = 0.04), amiodarone therapy (p < 0.005), diastolic blood pressure (p = 0.03), creatinine serum levels (p < 0.001), potassium serum levels (p < 0.001), and lengthening of the QRS complex (p = 0.03) were associated with inducible sustained VT during EPS. In the multivariate model, amiodarone therapy (p = 0.03; hazard ratio = 10; Wald coefficient = 4.5; 95% confidence interval 1.2 to 85.2) was the only variable retained as independent predictor of inducible sustained VT during EPS. CONCLUSION: Amiodarone therapy was the only independent variable associated with sustained VT inducibility during EPS in patients with chronic Chagas' heart disease.

12.
Arq. bras. cardiol ; Arq. bras. cardiol;101(2): 101-105, ago. 2013. tab
Article in Portuguese | LILACS | ID: lil-685394

ABSTRACT

FUNDAMENTOS: Inúmeros indicadores são utilizados para assegurar a qualidade de um serviço; entretanto, a competência médica e o adequado fluxo de realização de um procedimento são determinantes da qualidade final. Nesse contexto, a Sociedade Brasileira de Arritmias Cardíacas pretende recomendar parâmetros mínimos necessários para garantir a excelência dos serviços de monitorização eletrocardiográfica ambulatorial. OBJETIVOS: Recomendar competências médicas mínimas e as informações necessárias para emissão do laudo de Holter. MÉTODOS: O documento foi fundamentado no conceito de medicina baseada em evidência, e nas circunstâncias em que a evidência não estava disponível a opinião de uma comissão de redação foi utilizada para a formulação da recomendação. Essa comissão foi formada por profissionais que apresentam vivência nas dificuldades do método e gestão na prestação de serviços nessa área. RESULTADOS: O profissional responsável pela análise de Holter deve conhecer as patologias cardiovasculares e ter formação consistente em eletrocardiografia, incluindo arritmias cardíacas e seus diagnósticos diferenciais. O laudo deve ser redigido de forma clara e objetiva. Os parâmetros mínimos que devem constar no laudo incluem as estatísticas do exame, assim como quantificação e análise dos distúrbios do ritmo observados durante a monitorização. CONCLUSÃO: A monitorização eletrocardiográfica ambulatorial deve ser realizada por profissionais com vivência em análise eletrocardiográfica e o laudo deve conter os parâmetros mínimos mencionados nesse documento.


BACKGROUND: There are innumerous indicators to assure the quality of a service. However, medical competence and the proper performance of a procedure determine its final quality. The Brazilian Society of Cardiac Arrhythmias recommends minimum parameters necessary to guarantee the excellence of ambulatory electrocardiographic monitoring services. OBJECTIVE: To recommend minimum medical competences and the information required to issue a Holter monitoring report. METHODS: This study was grounded in the concept of evidence-based medicine and, when evidence was not available, the opinion of a writing committee was used to formulate the recommendation. That committee consisted of professionals with experience on the difficulties of the method and management in providing services in that area. RESULTS: The professional responsible for the Holter monitoring analysis should know cardiovascular pathologies and have consistent formation on electrocardiography, including cardiac arrhythmias and their differential diagnoses. The report should be written in a clear and objective way. The minimum parameters that comprise a Holter report should include statistics of the exam, as well as quantification and analysis of the rhythm disorders observed during monitoring. CONCLUSION: Ambulatory electrocardiographic monitoring should be performed by professionals knowledgeable about electrocardiographic analysis, whose report should comprise the minimum parameters mentioned in this document.


Subject(s)
Humans , Arrhythmias, Cardiac/diagnosis , Evidence-Based Medicine , Electrocardiography, Ambulatory/standards , Brazil , Cardiology/standards , Societies, Medical/standards
13.
RELAMPA, Rev. Lat.-Am. Marcapasso Arritm ; 25(3): 172-177, jul.-set. 2012. ilus
Article in Portuguese | LILACS | ID: lil-668978

ABSTRACT

A Síndrome do QT longo (SQTL) congênito é uma doença dos canais iônicos cardíacos que está associada com síncope, taquiarritmias ventriculares e morte súbita cardíaca em pacientes com coração normal. Raramente, apresenta-se com Bloqueio Atrioventricular 2:1, apresentando mortalidade maior que 50% nos primeiros seis meses de vida, mesmo com tratamento adequado. O caso aqui descrito relata a evolução clínico de lactente com 6 meses de idade com SQTL congênito, síncope de repetição e BAV 2:1 inicialmente tratado como epilepsia, que após tratamento clínico adequado com mudança de estilo de vida, betabloqueadores e implante de marcapasso, não apresentou mais eventos cardíacos. No seguimento tardio (com 6 anos de vida), foi implantado Cardiodesfibrilador Implantável, sem terapias até a presente data.


Congenital long QT syndrome is a disease of cardiac ion channels that is associated withs yncope, cardiac sudden death and ventricular tachyarrhythmias in patients with normal hearts. Rarely,it presents associated with 2:1 atrioventricular block; in this case the mortality rate is higher than 50% in the first six months of life even with adequate treatment. The case described here reports on the clinical evolution of a six-month-old infant with congenital long QT syndrome, syncope of repetition and 2:1 atrioventricular block initially treated as epilepsy, that after the correct clinical treatment with changes in lifestyle, beta-blockers and pacemaker implantation, did not have further cardiac events. In the long term follow-up (six years of life), a defibrillator was implanted without the need of further therapies todate.


Subject(s)
Humans , Male , Infant , Arrhythmias, Cardiac/complications , Arrhythmias, Cardiac/diagnosis , Long QT Syndrome/complications , Death, Sudden , Pacemaker, Artificial
14.
Arq Bras Cardiol ; 89(5): 258-62, 285-9, 2007 Nov.
Article in English, Portuguese | MEDLINE | ID: mdl-18066447

ABSTRACT

BACKGROUND: Aiming to define the profile of curative atrial fibrillation (AF) ablation in Brazil, the Brazilian Cardiac Arrhythmia Society [Sociedade Brasileira de Arritmias Cardíacas] (SOBRAC) created the Brazilian Registry of AF Ablation [Registro Brasileiro de Ablação da FA]. OBJECTIVE: To describe the results of this registry. METHODS: A questionnaire was sent to SOBRAC members asking about data on patients submitted to AF ablation between September 2005 and November, 2006. RESULTS: A total of 29 groups from 13 states completed the forms. Of these, 22 (76%) had performed AF ablations. Between 1998 and 2001, 7 groups (32%) initiated AF ablations and between 2002 and 2006, 15 groups began to perform them (68%). From 1998 to 2006, 2,374 patients were submitted to ablation, 755 (32%) of them during the registry period. Most (70%) were males and 89% presented with paroxysmal or persistent AF. Ancillary imaging methods (intracardiac echocardiography and electroanatomic mapping) were used by 9 groups (41%). During an average five-month follow-up period, total success was 82% and success without use of antiarrhythmic agents was 57%. Nevertheless, 35% of the patients required two or more procedures. There were 111 complications (14.7%) and 2 deaths (0.26%). CONCLUSION: Curative AF ablation has been increasing significantly in our country, with success rates comparable to international indexes, but often more than one procedure is necessary. Despite promising results, AF ablation still results in significant morbidity. Supplementary imaging methods have been used more and more in an effort to increase efficacy and safety of the procedure. These findings should be considered by public and private funding agencies.


Subject(s)
Atrial Fibrillation/surgery , Catheter Ablation/statistics & numerical data , Registries/statistics & numerical data , Adolescent , Adult , Aged , Aged, 80 and over , Atrial Fibrillation/epidemiology , Brazil/epidemiology , Catheter Ablation/adverse effects , Echocardiography , Female , Follow-Up Studies , Humans , Male , Middle Aged , Societies, Medical
15.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 23(1): 2-8, jan.-mar. 2013. tab, graf
Article in Portuguese | LILACS | ID: lil-686346

ABSTRACT

O uso de anticoagulantes para profilaxia de tromboembolismo restringe-se à Fibrilaçãom Atrial (FA) e Flutter Atrial (FLA). FA é a arritmia sustentada mais prevalente nos dias de hoje, com aumento da prevalência de acordo com o aumento da idade. Está associada com maior risco de Insuficiência Cardíaca, mortalidade e Acidente Vascular Encefalico (um em cada cinco), sendo este último associado à maior gravidade, incapacidade e mortalidade do que isquemias cerebrais de outra etiologia. Deste fato, vem a importância de um adequado tratamento antitrombótico a fim de se evitar a cardioembolia. Neste artigo, temos por objetivo indicar os principais fatores de risco para tromboembolismo na FA, as drogas indicadas para profilaxia antitrombótica, incluindo os novos anticoagulantes orais, sua principais indicações, benefícios e riscos, inclusive em situações especiais como cardioversão e ablação de FA.


The use of anticoagulants for thromboembolism prophylaxis is restricted to Atrial Fibrillation (AF) and Atrial Flutter (FLA). Atrial fibrillation is the most prevalent sustained arrhythmia nowadays, with an increasing prevalence during the aging process. It is associated with an increased risk of heart failure, mortality and stroke (one in five), which is associated with greater severity, disability and mortality than with any other etiology of cerebral ischemia. This fact justifies of an adequate antithrombotic treatment in order to avoid thromboembolism. In this article, we aim to outline the main risk factors of thromboembolism in AF, drugs indicated for antithrombotic prophylaxis, including new oral anticoagulant, the main indications, risks and benefits, including special situations such as electrical cardioversion and ablation of AF.


Subject(s)
Humans , Catheter Ablation/adverse effects , Anticoagulants/administration & dosage , Atrial Fibrillation/complications , Atrial Fibrillation/diagnosis , Atrial Fibrillation/mortality , Heart Failure , Thromboembolism/complications , Thromboembolism/therapy , Risk Factors
16.
Arq. bras. cardiol ; Arq. bras. cardiol;89(5): 285-289, nov. 2007. tab
Article in English, Portuguese | LILACS | ID: lil-470048

ABSTRACT

FUNDAMENTO: Buscando delinear o perfil da ablação curativa de fibrilação atrial (FA) no Brasil, a Sociedade Brasileira de Arritmias Cardíacas (SOBRAC) idealizou o Registro Brasileiro de Ablação da FA. OBJETIVO: Descrever os resultados desse registro. MÉTODOS: Foi enviado um formulário aos sócios da SOBRAC, inquirindo sobre os dados de pacientes submetidos a ablação de FA entre setembro de 2005 e novembro de 2006. RESULTADOS: No total, 29 grupos, de 13 Estados, responderam ao formulário. Desses, 22 (76 por cento) realizaram ablações de FA. Entre 1998 e 2001, 7 grupos (32 por cento) iniciaram ablações de FA e entre 2002 e 2006, 15 grupos (68 por cento). De 1998 a 2006, 2.374 pacientes foram submetidos a ablação, sendo 755 (32 por cento) no período do registro. A maioria (70 por cento) era do sexo masculino e 89 por cento apresentavam FA paroxística ou persistente. Métodos auxiliares de imagem (ecocardiografia intracardíaca e mapeamento eletroanatômico) foram utilizados por 9 grupos (41 por cento). Durante seguimento médio de cinco meses, o sucesso total foi de 82 por cento e o sucesso sem uso de antiarrítmicos foi de 57 por cento. Contudo, 35 por cento dos pacientes necessitaram de dois ou mais procedimentos. Houve 111 complicações (14,7 por cento) e 2 óbitos (0,26 por cento). CONCLUSÃO: A ablação curativa de FA vem crescendo significativamente em nosso País, com taxas de sucesso comparáveis às internacionais, mas comumente há necessidade de mais de um procedimento. Apesar dos resultados promissores, a ablação de FA ainda acarreta morbidade significativa. Métodos auxiliares de imagem têm sido cada vez mais utilizados, visando a aumentar a eficácia e a segurança do procedimento. Esses achados devem ser considerados pelos órgãos pagadores públicos e privados.


BACKGROUND: Aiming to define the profile of curative atrial fibrillation (AF) ablation in Brazil, the Brazilian Cardiac Arrhythmia Society [Sociedade Brasileira de Arritmias Cardíacas] (SOBRAC) created the Brazilian Registry of AF Ablation [Registro Brasileiro de Ablação da FA]. OBJECTIVE: To describe the results of this registry. METHODS: A questionnaire was sent to SOBRAC members asking about data on patients submitted to AF ablation between September 2005 and November, 2006. RESULTS: A total of 29 groups from 13 states completed the forms. Of these, 22 (76 percent) had performed AF ablations. Between 1998 and 2001, 7 groups (32 percent) initiated AF ablations and between 2002 and 2006, 15 groups began to perform them (68 percent). From 1998 to 2006, 2,374 patients were submitted to ablation, 755 (32 percent) of them during the registry period. Most (70 percent) were males and 89 percent presented with paroxysmal or persistent AF. Ancillary imaging methods (intracardiac echocardiography and electroanatomic mapping) were used by 9 groups (41 percent). During an average five-month follow-up period, total success was 82 percent and success without use of antiarrhythmic agents was 57 percent. Nevertheless, 35 percent of the patients required two or more procedures. There were 111 complications (14.7 percent) and 2 deaths (0.26 percent). CONCLUSION: Curative AF ablation has been increasing significantly in our country, with success rates comparable to international indexes, but often more than one procedure is necessary. Despite promising results, AF ablation still results in significant morbidity. Supplementary imaging methods have been used more and more in an effort to increase efficacy and safety of the procedure. These findings should be considered by public and private funding agencies.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Atrial Fibrillation/surgery , Catheter Ablation , Registries/statistics & numerical data , Atrial Fibrillation/epidemiology , Brazil/epidemiology , Catheter Ablation/adverse effects , Echocardiography , Follow-Up Studies , Societies, Medical
17.
REBLAMPA Rev. bras. latinoam. marcapasso arritmia ; 15(1): 41-51, jan.-mar. 2002. ilus
Article in Portuguese | LILACS | ID: lil-316563

ABSTRACT

Paciente do sexo feminino, com 58 anos, portadora de cardiomiopatia dilatada, acompanhada desde 1984 por apresentar insuficiência cardíaca e hipertensão arterial. Na evolução, apresentou bloqueio de ramo esquerdo e fibrilação atrial. No final de 1999, mesmo com a medicação adequada e otimizada para insuficiência cardíaca, apresentava-se em grau funcional IV e as internações hospitalares haviam se tornando cada vez mais freqüentes. Em janeiro de 2000, optou-se pela ablação do nó atrioventricular e pelo implante de um marcapasso endocárdico bifocal multissítio em ventrículo direito. Desde então vem evoluindo bem, com menor número de medicamentos e raras internações


Subject(s)
Humans , Female , Aged , Heart Failure/surgery , Heart Failure/pathology , Pacemaker, Artificial , Echocardiography , Atrial Fibrillation/surgery , Atrial Fibrillation/pathology , Diagnostic Techniques, Cardiovascular
18.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 14(5): f708-714, set.-out. 2004. graf
Article in Portuguese | LILACS | ID: lil-413559

ABSTRACT

O manuseio de pacientes com fibrilação atrial é uma das situações mais corriqueiras na prática diária do cardiologista. Todas as condutas tomadas devem estarbem embasadas cientificamente, para oferecer ao paciente uma terapêutica segura e eficaz. A avaliação detalhada de cada caso é fundamental para que se estabeleça uma conduta terapêutica individualizada ao paciente. A prevenção de fenômenos tromboembólicos e o cuidado para se evitar pró-arritmias são pontos importantes,que contribuem com a redução de complicações graves para o paciente.


Subject(s)
Humans , Male , Female , Atrial Fibrillation/complications , Atrial Fibrillation/therapy , Heart Rate , Thromboembolism/prevention & control
20.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 13(5): 554-556, set.-out. 2003. tab
Article in Portuguese | LILACS | ID: lil-364530

ABSTRACT

Em 1998, morreram subitamente, nos Estados Unidos, mais de 450 mil pessoas, o que corresponde a mais de 60 por cento de todas as mortes de origem cardíaca. A maioria das mortes súbitas cardíacas ocorre por arritmia, principalmente fibrilação ventricular (70 por cento), precedida (62 por cento) ou não (8 por cento) de taquicardias ventriculares. Para reduzir esses números, há três estratégias: prevenção das condições que favorecem seu aparecimento, medidas que evitem as arritmias potencialmente letais ou recuperação pronta dos atingidos por essas arritmias. Pode-se, portanto, prevenir o aparecimento do primeiro episódio ou tratá-lo imediatamente quando ocorrer (prevenção primária), evitar seu reaparecimento ou tratá-lo (prevenção secundária). Na prevenção secundária, quando não existem causas transitórias ou removíveis, a principal escolha, baseada em mega-ensaios comparativos, tem sido o implante de cardioversor-desfibrilador automático. Mas, pelo seu alto custo, há necessidade de se identificar subgrupos com pouco benefício, comparativamente à amiodarona. Meta-análise recente desses ensaios sugere que, em cardiopatas isquêmicos com fração de ejeção superior a 35 por cento, não há evidências de vantagens do desfibrilador sobre a amiodarona. Quanto às cardiomiopatias não-isquêmicas, ainda faltam estudos que nos auxiliem a decidir. Isso também ocorre na prevenção primária, que, obrigatoriamente, tem que atingir população muito maior. Ainda não há evidências importantes de benefício adicional do desfibrilador para alguns subgrupos, principalmente os de fração de ejeção não tão reduzida, em taquicardias ventriculares hemodinamicamente bem toleradas ou, ainda, em síncopes sem indução de arritmias ventriculares sustentadas no estudo eletrofisiológico. Até que mais evidências surjam, para esses casos a amiodarona associada à otimização do controle clínico pode continuar a ser uma opção terapêutica válida.


Subject(s)
Humans , Arrhythmias, Cardiac , Electric Countershock/economics , Electric Countershock/methods , Defibrillators, Implantable/economics , Death, Sudden, Cardiac/epidemiology , Death, Sudden, Cardiac/etiology , Death, Sudden, Cardiac/prevention & control , Anti-Arrhythmia Agents , Meta-Analysis , Myocardial Ischemia , Risk Factors , Tachycardia, Ventricular , Time Factors , Ventricular Fibrillation
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