Abstract Background Implantable cardioverter-defibrillator (ICD) is indicated for primary prevention in patients with left ventricular ejection fraction (LVEF) ≤ 35% and New York Heart Association class II or III heart failure despite 3 months of optimal medical therapy. However, studies that support this recommendation are over 20 years old, and they may not reflect modern heart failure patients’ characteristics. Objectives Retrospectively evaluate patients who received an ICD for primary prevention. Methods All-cause and sudden death rates were compared in patients […]

Abstract Background: Implantable cardioverter defibrillators (ICDs) are recommended for patients experiencing malignant tachyarrhythmias due to irreversible causes, who are clinically stable, and have a life expectancy exceeding one year. However, adverse socioeconomic and psychosocial conditions can adversely affect short-term survival and may render implantation inappropriate. Objective: To assess whether economic and psychosocial markers (EPSM) are associated with higher mortality in the first year (indicating potentially inappropriate implants) following ICD implantation. Methods: A prospective cohort study conducted between 2017 and 2021 […]

Abstract Background: There are few retrospective and prospective studies on implantable cardioverter-defibrillators (ICD) in primary and secondary prevention of sudden death in chronic Chagas heart disease (CCHD). Objectives: To describe the long-term evolution of patients with CCHD and ICD and to identify and analyze predictors of mortality and appropriate device therapy in this population. Methods: This was a historical prospective study with 117 patients with ICD and CCHD. Devices were implanted from January 2003 to December 2021. Predictors of appropriate […]

Abstract Background An implantable cardioverter-defibrillator (ICD) can cause high levels of anxiety and depression, resulting in negative effects on quality of life. Objectives To evaluate the quality of life, anxiety, and acceptance of the ICD using standardized measurement instruments and identify predictors of better responses for each of the outcomes studied. Method This is a prospective cohort study with patients undergoing initial ICD implantation or reoperation to maintain the device. The study outcomes included quality of life, anxiety, and acceptance […]

Reply Sudden cardiac death (SCD) is considered the most dramatic complication of hypertrophic cardiomyopathy (HCM) with an estimated annual incidence of 0.5–1%. Over the years, the ACC/AHA and the ESC have published consensus guidelines providing different approaches for SCD risk stratification based on independent clinical predictors. Despite the relatively low accuracy of these markers, current strategies are considered to have a reasonable discriminatory power for the recognition of high-risk patients. However, prognostic assessment is challenging in HCM, especially in low […]

Abstract Background The totally subcutaneous implantable cardioverter-defibrillator (S-ICD) is a safe alternative to the conventional transvenous ICD (TV-ICD) system to prevent sudden death. Objective To compare the impact of the type of ICD system and surgical technique on patients’ quality of life, as well as the severity of discomfort and pain, between S-ICD and TV-ICD recipients. Methods Consecutively implanted patients with an S-ICD system were matched with patients with a TV-ICD system. In addition, patients undergoing S-ICD implantation after removal […]

Abstract Background Risk stratification for sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) is based on different algorithms proposed by the 2011 ACCF/AHA and 2014 ESC guidelines. Objective To analyze the 2014 ESC model for SCD risk stratification and primary prevention ICD (implantable cardioverter defibrillator) in HCM in comparison to the North American guideline. Methods An HCM cohort was evaluated and the ESC HCM-Risk SCD score was calculated. Agreement of ICD recommendations criteria between the two guidelines was analyzed with […]

Caro Editor, Lemos o artigo “Episódios de Taquicardia Ventricular não Sustentada (TVNS) predizem futura hospitalização em receptores de CDI com insuficiência cardíaca”, escrito por Uçar et al., com grande interesse. A TVNS identificada na análise de rotina do CDI deve ser considerada um evento clínico importante, como afirmam os autores neste artigo. No entanto, gostaríamos de chamar a atenção para algumas questões relacionadas ao artigo. […]