[Prognostic factors in dilated cardiomyopathy]

Area of Science:

• Cardiology
• Internal Medicine
• Medical Research

Background:

• Dilated cardiomyopathy (DCM) is a significant cause of heart failure.
• Understanding prognostic factors is crucial for managing patients with DCM.
• Alcohol consumption is a known potential contributor to cardiomyopathy.

Purpose of the Study:

• To identify prognostic factors in patients with dilated cardiomyopathy.
• To evaluate the impact of left ventricular (LV) functional impairment on survival.
• To assess the role of alcohol consumption in the prognosis of DCM.

Main Methods:

• Prospective study including 38 patients with dilated cardiomyopathy.
• Evaluation of clinical, radiological, echocardiographic, and hemodynamic parameters.
• Comparison of prognostic factors between patients who improved/recovered and those who deteriorated or died.

Main Results:

• Survival rates at 2, 5, and 7 years were 87%, 35%, and <20%, respectively.
• Statistically significant differences were observed in LV end-diastolic diameter, LV end-systolic diameter, LV systolic pressure, LV end-diastolic volume, LV end-systolic volume, ejection fraction, and velocity of fiber shortening between improved and deteriorated groups.
• Alcohol consumption did not significantly influence the prognosis.

Conclusions:

• The severity of left ventricular (LV) functional impairment is the primary determinant of poor prognosis in dilated cardiomyopathies.
• Echocardiographic and hemodynamic parameters reflecting LV function are critical for predicting outcomes.
• Alcohol consumption's direct impact on prognosis was not confirmed in this study.