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Biomedical subjects

S Prasad

Publications and source records attributed to S Prasad.

332 records · Page 19Linked to original sources
PubMedDate not supplied

Action of acetylcholine on the atropinised heart of the frog during summer months.

During summer months high doses of acetylcholine produced positive inotropic and chronotropic actions in 19 out of 22 preparations of atropinised perfused heart of the frog. Hexamethonium failed to block both the positive inotropic and chronotropic actions of Ach. Interestingly another ganglion blocking agent mecamylamine as well as beta adrenergic blocking agent propranolol blocked the positive inotropic action but not the positive chronotropic action.

Acetylcholine↗
PubMedDate not supplied

Laparoscopic surgery in the developing world. An overview of the Indian scene.

We present experience of laparoscopic surgery commencing in 1972 with diagnostic laparoscopy in a Surgical Unit in Bombay. By 1990 we had completed 2800 diagnostic laparoscopies with no mortality, 0.08% complication rate, 85% positive diagnosis and an instrument cost of about Rs. 35 (US $ 1.2) per patient. We have over the past 5 years performed 890 laparoscopic cholecystectomies (LC) with no mortality, no blood transfusion, and one CBD injury. With reusable equipment, monopolar diathermy and selective cholangiography, LC is cost-efficient in a developing country. Over this period over 60 laparoscopic appendectomies were performed, with the use of catgut ligatures and self-made endo-loops. laparoscopic appendectomy is cost-effective under our conditions. We have done 46 hernia repairs, and by contrast find it far more expensive and with inferior results to standard hernia repair. Advanced laparoscopy for ulcer and reflux disease, bowel resection, retroperitoneal and thoracic laparoscopy are being given a trial in several centres in the developing world.

Appendectomy↗
PubMedDate not supplied

Fistulization of hepatic hydatid cyst into duodenum.

Though rupture of hepatic hydatid cyst is not uncommon, fistulization into the gut following rupture is rare. We report a case in whom a hepatic hydatid cyst ruptured into the first part of the duodenum.

Adult↗