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Biomedical subjects

A Salem

Publications and source records attributed to A Salem.

66 records · Page 4Linked to original sources
PubMed1975

[Regional distribution of pulmonary perfusion during fluid overload in man].

The effects of a fluid vascular overload (Dextran 40,000, 10 p. 100, 44 +/- ml/kg/45 min) were studied in 9 normal subjects in the upright position. The following were found: an increase in pulmonary blood volume (+30 p. 100), and in extravascular pulmonary water (+ 70 p. 100), a significant fall in pulmonary compliance and an increase in bronchial resistance. Radio-isotopic study of the regional distribution of pulmonary perfusion showed a clear inversion with decrease in perfusion at the bases and increase at the apices. From the theoretical standpoint, this inversion of distribution of perfusion can be due to hypoxic vasoconstriction in the lung bases, to an increase in flow and entry pressures recruiting apical vessels or to a perivascular compressive edema in the lower parts of the lungs. Different modifications complementing the initial experimental protocol tend to prove that it is this latter reason which is essentially at the origin of the inversion in regional distribution of pulmonary perfusion.

Adult↗
PubMedDate not supplied

Short-term use of sildenafil in the treatment of unconsumated marriages.

The aim of this study is to evaluate the effectiveness of short-term sildenafil use in the management of unconsummated marriages diagnosed to be mainly psychogenic in origin. This retrospective study included 35 patients evaluated within an Andrology clinic. Patients underwent a complete medical and sexual history as well as a focused physical examination. Investigations were ordered as necessary following a goal-directed approach. Education about the male and female genital anatomy and the sexual response cycle was carried out, as well as a detailed explanation about the concepts of performance anxiety, vaginismus and the mode of action of sildenafil. Sildenafil on demand therapy was initiated for 1 month and the duration extended as needed. Of 35 patients included in our study, 32 (91%) were able to achieve vaginal intromission and perform sexually. In all, 23 patients needed the sildenafil (66%) for less than 1 month, five (14%) for up to 3 months and four (11%) for more than 3 months. Three patients (9%) were unsuccessful. Treatment failures were managed by intracavernous injection therapy, combined with psychosexual therapy, depending on the cause. We conclude sildenafil use is effective as a short-term treatment option in the management of unconsummated marriages.

Adult↗
PubMedDate not supplied

Hepatic fibrosis due to fascioliasis and/or schistosomiasis in Abis 1 village, Egypt.

An epidemiological study of fascioliasis and/or schistosomiasis was conducted in Abis 1 village. Stool specimens were collected from 2492 individuals and examined. Fascioliasis, alone or combined with schistosomiasis, was more prevalent among children aged between 5 years and 15 years than in adults. Serum procollagen III peptide (PIIIP) levels were determined as an indicator of active fibrosis, and liver histopathology and ultrasonography used as indicators of established fibrosis. PIIIP levels were significantly higher in children than in adults, and in mixed infections than in fascioliasis alone. In adults, fibrosis around granulomata detected by histopathology and grade 3 periportal fibrosis detected by sonography were encountered more frequently in dual than in single infections.

Adolescent↗
PubMedDate not supplied

Effects of beta-adrenoceptors blocking eye drops in patients with chronic bronchitis.

Beta-blocker eyedrops used on asthmatic patients are known to enhance asthma which is, as chronic bronchitis, an obstructive disease of the lung, and an authentic bronchoconstriction is always possible. A single blind parallel trial in 3 groups of 10 patients with grade II and III chronic bronchitis, was conducted to evaluate the cardiovascular and bronchial tolerance of 3 beta-blocker eyedrops: timolol, betaxolol and carteolol compared to placebo. The following parameters were measured during a 90 minutes period: heart rate, systolic and diastolic blood pressure, forced expiratory volume in one second, vital capacity. It appeared that only heart rate lowers significantly under the influence of the beta-blocker eyedrop, the other parameters did not change and no difference was noticed between the three eyedrops. However, comparison of individual values showed a significant decrease of forced expiratory volume in one second in certain subjects and this, although betaxolol is a beta 1 selective beta-blocker. Caution should be taken each time beta-blocker eyedrops are prescribed for glaucoma to patients with chronic bronchitis.

Adrenergic beta-Antagonists↗
PubMedDate not supplied

[Preparation of the colon for endoscopic examinations. A clinical study].

The paper gives a short critical bibliographic review of colonic preparation for endoscopy, focusing on the out-patient use of gastrointestinal endoscopy. A method of preparation based on dietary restrictions plus cathartics is proposed that allows the number of enemas used to be reduced to a minimum. The results obtained in 265 out-patients undergoing colonoscopy confirm the efficacy, practicality and tolerability of the method.

Adolescent↗