Seventy-seven patients with dilated cardiomyopathy (50 M and 27 F, aged 38 +/- 16 yrs) were followed up until Dec 31, 1985. Haemodynamic investigation was performed in all cases, and all pressure and left ventricular quantitative angiography parameters were collected. In no case did the coronary angiogram show significant lesions. Mean values of haemodynamic parameters for surviving and deceased patients were compared. Forty-six patients survived and 28 died during the follow-up period. Although all patients had an enlarged left ventricle and depressed contractility, survivors had either greater pressure/end systolic volume ratio or a greater stress/end systolic volume ratio. Survival curves confirm a particularly severe prognosis for patients with Suga index less than 1 or stress to end systolic volume ratio less than 2.5. Mass to volume ratio seems to affect two-year but not late survival. NYHA class does not indicate early survival. In conclusion, left ventricular function is obviously related to prognosis in these patients, but it seems still difficult to assess life expectancy from these parameters alone.
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