In systemic sclerosis (SS), cardiovascular commitment was recorded in an autopsy series, in widely different percentages, from 12 to 81%. On the other hand, clinical diagnosis of cardiopathy is made in far fewer cases. In addition, the coexistence of renal and/or pulmonary commitment makes difficult separation between primary and secondary heart damage. In 22 patients (2 m, 20 f) aged between 34 and 75 (average 55 +/- 11) with SS, a study has been made of the a) prevalence of cardiovascular commitment; b) the significance of the classic risk factors; c) the erythrocyte filtration time or TF (index of microangiopathic damage). Metabolic stability, fibrinogen, haematocrit and TF (Reid et al. method) were assessed in each patient. Nine patients (40.9%) presented ischaemic cardiopathy (myocardial infarction in three and effort angina in six), one (4.5%) presented hypertensive cardiopathy. Conduction disturbances were observed in five patients (22.7%). Whereas a statistically significant increase in TF was observed in cardiopaths, no differences in plasma levels of glucose, cholesterol or fibrinogen were observed. The incidence of smoking and the familial factor were also insignificant.
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