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Biomedical subjects

B Elem

Publications and source records attributed to B Elem.

At least 37 records · Page 2Linked to original sources

Carcinoma of the urinary bladder in Zambia. A quantitative estimation of Schistosoma haematobium infection.

The incidence and intensity of schistosomal infection in 50 African malignant bladders determined by quantitative analysis have been compared with a matched control group of nonmalignant cadaver bladders, and the incidence of radiological calcification in the former has been compared with that of 50 adult urinary bilharziasis patients without associated malignancy. Compared with 45% in the non-malignant group, schistosomal infection was present in an overwhelming 94% of the malignant cases. Radiological calcification in the malignant bladders (38%) was slightly more than in patients with urinary bilharziasis (35%). In the majority of the malignant bladders (55.3%) the parasitic infection was noted to be of moderate to low intensity. It has been suggested that the overall severity of schistosomal infection is unlikely to be the sole factor in the pathogenesis of carcinoma of the urinary bladder.

Adult↗

Cryodestruction of haemorrhoids.

Thirty-seven cases of second and third degree haemorrhoids have been treated by cryosurgery. Although the number of cases treated is small and the follow-up is short, we are greatly encouraged by the early excellent results. It is a simple and effective procedure with minimal complications, and it is especially recommended for those patients who are medically unfit for general anaesthesia. The rapidity of this procedure combined with the painless operative and postoperative course enables the patient to leave hospital the next day. More cases with long-term follow-up are needed before adequate evaluation of this form of treatment can be made.

Adult↗

Comparison between thermography and fluorescein test in the detection of incompetent perforating veins.

Incompetent perforating veins of the legs were located by dynamic thermography at 69 sites and by the fluorescein test at 31. All the sites were explored by multiple local incisions. Incompetence of the veins was determined by demonstrating retrograde blood flow through these veins when severed. Explorations of these sites showed that thermography detected 94% and gave false-positive results in 6%, while the fluorescein test detected 16% and contributed 84% false-positive results. These findings show a highly significant difference (P <0.0005) in favour of the thermographic technique. Detection of 16% of incompetent perforating veins by the fluorescein test is statistically insignificant. This inaccuracy is thought to be due to inadequate dermal penetration of the ultraviolet rays. A positive fluorescein test probably indicates the presence of incompetent perforating veins but has little anatomical relationship to their actual site.

False Negative Reactions↗

Abdominal actinomycosis.

Four cases of abdominal actinomycosis managed during a two year period at Ndola Central Hospital are reported with a review of relevant literature. Difficulties associated in diagnosing this form of the disease are stressed. It is suggested that a limited form of surgery in combination with parenteral penicillin therapy is usually effective in the management of abdominal actinomycosis.

Abdomen↗