RESUMO
Doxorubicin is an important cause of chemotherapy-induced cardiomyopathy. Prior studies have found conflicting results of whether nonstrain diastolic parameters can predict doxorubicin-induced cardiotoxicity. We performed a systematic review of English written publications using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The following inclusion criteria were applied: cancer subjects, echo-derived nonstrain diastolic profile, and patients compared before and after treatment to predict systolic dysfunction. The following exclusion criteria were applied: other cardiotoxic agents, non-echo studies, or used protective medications. Meta-analysis was performed using comprehensive meta-analysis software V3 to calculate cumulative means, SD, and odds ratios (ORs). Only 4 studies were designed to predict doxorubicin-induced cardiotoxicity. Of the 7 common parameters identified among studies, only 4 were significant: mitral E [OR: 3.4; 95% confidence interval (CI): 1.5-7.8; P = 0.003]; lateral E' (OR: 3.7; 95% CI: 1.5-9.4; P < 0.005); mitral E/A (OR: 4.3; 95% CI: 2.1-8.9; P < 0.0001); and lateral S' (OR: 2.7; 95% CI: 1.2-5.8; P = 0.01). We found that conventional nonstrain diastolic parameters predicted doxorubicin-induced systolic dysfunction. Whether nonstrain diastolic parameters can be used to supplement strain imaging for predicting doxorubicin-induced systolic function warrants further investigation in larger studies.
Assuntos
Cardiomiopatias , Doxorrubicina/efeitos adversos , Ventrículos do Coração/diagnóstico por imagem , Volume Sistólico/fisiologia , Antibióticos Antineoplásicos/efeitos adversos , Cardiomiopatias/induzido quimicamente , Cardiomiopatias/diagnóstico , Cardiomiopatias/fisiopatologia , Diástole , Ecocardiografia , Ventrículos do Coração/efeitos dos fármacos , Ventrículos do Coração/fisiopatologia , Humanos , Neoplasias/tratamento farmacológico , Prognóstico , Volume Sistólico/efeitos dos fármacosRESUMO
A patient with a history of rheumatic mitral valve disease and valve replacement in childhood presented with severe, persistent dyspnea. During an electrophyisiologic procedure, she was discovered to have a fistula from the left ventricle to the coronary sinus. She had severe pulmonary hypertension and elevated filling pressures, with a significant left-to-right shunt. Percutaneous closure of the fistula was performed using two vascular plugs. Subsequently the patient's hemodynamics improved and her symptoms subsided. Here, we describe the case and review the literature.
