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Biomedical subjects

M Geny

Publications and source records attributed to M Geny.

7 recordsLinked to original sources
PubMed1991

Prospective mortality study among iron miners.

A prospective mortality study was conducted over a period of 5 years on a group of 13,801 iron miners, who were alive on January 1, 1982. During this 5-year period, 1813 deaths were registered. For 1222 (67.4%), the cause of death and work history are known. For 135 (7.4%), the cause of death is known, but not the work history. For 455 (25.1%), the cause of death is unknown. Proportional mortality ratio (PMR) is significantly higher than 1 for lung cancer (PMR = 2.51, p less than 0.001) and for stomach cancer (PMR = 2.31, p less than 0.001). The results are discussed in regard to occupational risks that result in these two kinds of increased mortality rates, and the hypothesis of redox activity on the surface of dust particles is advanced as a common denominator.

Adult↗
PubMed1984

Radiologic and echocardiographic patterns of 98 cases of atrial septal defect without other defects (isolated atrial septal defect).

We collected 98 cases of single atrial septal defect. Analytical study of the pulmonary vasculature and the shape of the heart allowed us to differentiate 71 cases of pulmonary hypervascularity with increased cardiothoracic index and an appearance of right ventricular dilatation. The left inferior segment was usually straight, but sometimes convex, with a great curvature including the middle left segment. Apart from these 71 typical cases, there were 18 cases of incomplete patterns, 7 cases of atypical patterns with a convex left inferior segment with a small curvature and two normal cases (normal shape of the heart and normal vasculature). - Echocardiography was performed in 35 cases. It was valuable in 34 cases and established the diagnosis each time the X-ray picture was uncertain. Increase of the ratio of the telediastolic diameter of the right to left ventricle is almost constant and the septal motion is paradoxical in 79% of all cases. - Post-operative change was characterized from the radiological point of view by rapid return to normal of the pulmonary vascularity, followed by decrease of the cardiothoracic index, while the modifications of the shape of the left middle and inferior segment regress slowly and incompletely. As for echocardiography there is constant decrease of the ratio of the telediastolic diameter of the right to left ventricle, while the septal motion returns to normal in 79% of all cases.

Adolescent↗
PubMed1982

[Radiological and echotomographic findings in 98 children with isolated atrial septal defects].

Chest roentgenograms were carried out in 98 children with atrial septal defects and showed in 71 of them an increase of the pulmonary vascular markings, an increased heart index and right ventricular enlargement. In other children, abnormalities were either incomplete (18 cases) misleading (7 cases) or normal (2 cases). Echocardiogram was characteristic in 34 of 35 children showing an increased telediastolic ratio in virtually all cases and paradoxical septal motion in 79%. Postoperatively, chest roentgenographic findings include a return to normal of pulmonary markings and heart index while right ventricular enlargement regresses only partially. Echocardiograms show a decrease of the telediastolic ratio in all patients and a normal septal motion in 78%.

Adolescent↗
PubMed1980

[Radiological appearances of congenital malformations of the hand (author's transl)].

Pre- and post-operative radiological appearances of various isolated congenital malformations of the hand are described, as observed in a personal series of 52 cases. Six groups of malformations can be distinguished, and are, in decreasing order of frequency: agenesias, syndactylies, duplications, amniotic bands, arthrogryposis, and macrodactyly.

Adult↗