[Left auricular myxoma and myocardial infarction]. / Myxome auriculaire gauche et infarctus du myocarde.

The authors report the case of a 40 year old man with a postero-inferior myocardial infarction. Echocardiography showed a large left atrial myxoma. Coronary angiography performed 20 days after the onset of infarction was completely normal. The tumour was successfully removed surgically. The authors review the literature of this rare association (20 reported cases) which were commonly observed since the widespread use of echocardiography and coronary angiography. These investigations have improved the understanding of the physiopathology of this association. One of the possible hypotheses of diastolic mitral obstruction by the tumour was the probable mechanism of infarction in this case due to prolonged impaired coronary filling due to low cardiac output.

[Etiological factors of deep vein thromboses in the limbs of Black African subjects]. / Facteurs étiologiques des thromboses veineuses profondes des membres chez le sujet Noir Africain.

Deep thrombosis of limbs are unknown in Africa South of the Sahara. Looking for their etiological factors, the authors reviewed 82 cases admitted with an undisputable diagnosis of thrombosis. They underline the coming in of the disease which appears to strike two targets populations female in strong genital activity and males between 40 and 60 years of age. The authors are of opinion that etiological factors are similar to those described in the literature but they underline some peculiarities. Anemia, mainly because of iron deficiency (30.5 p.c.) gyneco-obstetrical context with oral contraception (26.8 p.c.) dysmetabolism (19.5 p.c.) heredity (15 p.c.) and infections (14.5 p.c.) are on the top of etiological factors. Then we have congestive cardiopathies (9.7 p.c.) digestive lesions (6.1 p.c.) and neoplasiae, hemoglobinopathies, quite frequent in the region as well as surgical context without preventive anticoagulants (7.3 p.c.) do not seen to play a significant role: they start again the discussion about the natural protection of Black African against thrombo-embolic diseases. Finally, they point out the interest of antithrombine III and proteins C and S tests in any known causal factor.