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Biomedical subjects

A Mroueh

Publications and source records attributed to A Mroueh.

At least 19 recordsLinked to original sources
PubMed1984

Maternal mortality in the American University of Beirut Medical Center (AUBMC) 1971-1982.

Maternal deaths were reviewed at the American University of Beirut Medical Center (AUBMC) during an 11-year period, 1971-1982. There were 35,058 live births and 45 deaths making a maternal mortality rate of 128 per 100,000 live births. Hemorrhage, sepsis and toxemia were the main direct obstetric causes of death. The most important indirect causes were cerebrovascular accidents and heart disease. In this review, an analytic discussion of the direct and indirect causes of maternal death in Lebanon are presented and preventive measures are discussed.

Adult↗
PubMed1978

Ovarian biopsy in the evaluation of amenorrhea.

Endoscopic ovarian biopsies were performed on 78 amenorrheic patients in an attempt to determine the etiology of their amenorrhea and predict its prognosis, correlating the histologic examination with physical findings, endocrine patterns and cytogenetic studies. Ovarian follicles were present while gonadotropins were high in 14 cases (6 primary, 8 secondary) and there were no follicles in 4 cases (3 primary, 1 secondary) whose gonadotropins were low. Secondary sex characteristics were well developed without prior estrogen stimulation in 5 cases of primary amenorrhea who had no follicles and whose gonadotropins were either low, 3, or high, 2. The mere presence of ovarian follicles was not enough to make them responsive to gonadotropin stimulation whether endogenous or exogenous; a phenomenon that had to do with the quality and quantity of germinal follicles available. The histologic examination of ovarian tissue for the evaluation of amenorrhea has been made feasible and relatively safe through recent advances in endoscopic techniques.

Adolescent↗
PubMed1976

Abnormality in metabolism of 15N-labeled nitrate in toxemia.

The urinary excretion of 15N-labeled ammonium nitrate was studied during the last few weeks in patients with normal pregnancy and in those with toxemia. Marked diminution of the 15N label was found consistently in patients with toxemia in the urinary fraction consisting of nitrogenous compounds other than urea and ammonia. The possible significance of this finding is discussed.

Adult↗
PubMed1976

Varicocele and infertility in men.

Varicocele is an important cause of infertility in men. The exact mechanism by which varicocele depresses spermatogenesis is unknown but probably the retrograde flow of blood rich in catecholamines into the testes plays a major role. Because subfertile semen qualities are present in a large percentage of men with varicocele and because the response to surgical procedures is very good, high ligation of the left internal spermatic vein is recommended in men with varicocele and infertility.

Adult↗
PubMed1975

Active transport system in human spermatozoa.

The presence of potassium influx into human spermatozoa was investigated through the use of radioactive K42 and Rb86. A gradient of potassium and sodium has been found between the spermatozoal midpiece-tail region and seminal plasma. The influx of potassium seemed to correlate with spermatozoal motility.

Biological Transport, Active↗