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OBJECTIVE To evaluate the incidence of severe protein-calorie malnutrition in patients with dilated cardiomyopathy (DC), and its correlation with left ventricular contractility. METHODS Group A--51 patients with DC in decompensated congestive heart failure class III or IV, 36 men, aged 51.9 +/- 15.6 years. Group B--25 patients admitted for elective myocardial revascularization with normal LV contractility, 20 men, aged 57.2 +/- 10.5 years. Tricipital skinfold thickness (TS) and mid-arm muscle circumference (MAMC) were obtained in all patients. Severe protein-calorie malnutrition was defined when both measurements were below the fifth populational percentile (Frisancho tables). In Group Am the echocardiographic left ventricular (LV) diastolic diameter (DD), ejection fraction (EF) and systolic volume (SV) were obtained. Those LV parameters were compared between DC patients with and without severe malnutrition. Correlation analysis were performed between TS, MAMC and LV DD, EF, and SV, in the patients of Group A. RESULTS Severe malnutrition occurred in 7/51 (13.7%) of Group A, and none in Group B. TS values were of 8.90 +/- 4.47 cm in Gr. A and 23.48 +/- 8.52 in B (p < 0.001). MAMC measured 22.25 +/- 3.13 cm in Gr. A and 23.58 +/- 8.52 in B (p = 0.03), LVEF was of 36.29 +/- 9.43% in severe malnutrition patients and of 37.84 +/- 9.78 in the other patients of Group A (p = 0.70). Conversely, LVDD was of 70.90 +/- 11.3 mm vs. 70.75 +/- 8.54 mm (p = 0.98), and LVSV was of 113.0 +/- 52.7 ml vs. 137.6 +/- 56.8 (p = 0.45), when compared severe malnutrition with the rest of patients of Group A. No correlation was found between TS and MAMC and LV, EF, DD and SV in Group A. CONCLUSIONS Severe malnutrition was frequent in patients with DC and heart failure. TS measurements, reflecting caloric reserves, were more affected. Echocardiographic parameters of LV function did not correlate with nutritional status.
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