[Association of biventricular resynchronizer and implantable cardioverter defibrillator]

Area of Science:

• Cardiology
• Medical Devices

Background:

• Congestive heart failure (HF) is a significant public health issue, with dilated cardiomyopathy (DCM) patients facing high risks of sudden cardiac death from arrhythmias.
• Cardiac resynchronization therapy (CRT) and implantable cardioverter defibrillator (ICD) therapy are established treatments for specific HF and arrhythmia conditions.

Observation:

• This study reports on the first three patients in Mexico to receive combined CRT and ICD therapy.
• The patients, all male aged 54-65, had varying degrees of HF (NYHA class II-IV) and reduced left ventricular ejection fraction (LVEF) of 25-35%, with two having prior myocardial infarction.

Findings:

• All three patients demonstrated improvement in functional class and LVEF after receiving the combined therapy.
• Two patients experienced appropriate ICD discharges, confirming the device's efficacy in managing ventricular arrhythmias.

Implications:

• Combined CRT-ICD therapy shows promise for managing complex heart failure patients with ventricular arrhythmias.
• This case series highlights the successful application of advanced cardiac device therapy in a Mexican patient cohort.