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Biomedical subjects

E Ogasawara

Publications and source records attributed to E Ogasawara.

8 recordsLinked to original sources
PubMed1995

[Does aging influence effect of pirenzepine alone or combination of pirenzepine and famotidine on gastric secretion during anesthesia and surgery?].

Effect of pirenzepine alone or the combination of pirenzepine and famotidine on gastric secretion during anesthesia and surgery was evaluated in 52 elective surgical patients ranged in age from 17 to 68 years. These patients of each group were divided into two subgroups according to their age either 40 years and under or over. The patients underwent orthopedic, ophthalmic, ENT, plastic or non-abdominal general surgery under neuroleptanesthesia except 5 patients who had enflurane or isoflurane anesthesia. They received either pirenzepine 10 mg or the combination of pirenzepine 10 mg and famotidine 20 mg intravenously just before the induction of anesthesia. Volume and acidity of gastric juice were measured for 3 hours after the administration of these agents. Decrease in volume and acidity of gastric juice continued for more than 3 hours after the administration of pirenzepine alone or the combination of pirenzepine and famotidine, and it was more prominent in the combination group than in the pirenzepine group. There was no statistical difference in volume of gastric juice between the patients of 40 years and under in age and those over 40 years in each group. However, the intragastric pH tended to be lower in patients of 40 years and under in age than that in those over 40 years. A percentage of patients who had intragastric pH below 2.5 was larger in the pirenzepine administered patients of 40 years and under in age than that of the remaining patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1991

[A case of right femoral anastomotic aneurysm accompanied by obstruction of left iliac and femoral artery].

The case was a 66-year-old man. Three years ago under a diagnosis of Arteriosclerosis obliterans he received: right aorto-femoral bypass grafting. This time left intermittent clandication was observed and we performed resection of aneurysm and femorofemoral cross over bypass grafting following a diagnosis of right aorto-femoral anastomotic aneurysm accompanied by obstruction of left iliac and femoral artery. Anastomotic aneurysm is one of the complications after prosthetic bypass grafting. In this paper we discussed the causes, precautions and treatment of anastomotic aneurysms.

Aged↗
PubMed1991

[A clinical study on total intravenous anesthesia with droperidol, fentanyl and ketamine--2. Pharmacokinetics following the end of continuous ketamine infusion].

Ten surgical patients who received various operative procedures including abdominal surgery and ENT surgery were the subjects of the pharmacokinetic study of total intravenous anesthesia with droperidol, fentanyl and ketamine. Six arterial samples were taken through an indwelling catheter in the left radial artery to measure plasma levels of ketamine and its metabolites by means of gas liquid chromatography. Two hours following the end of the ketamine infusion, plasma ketamine levels decreased to 14% of the control value (0.81 micrograms.ml-1), while metabolite I (K1) was still about 1.8 micrograms.ml-1 in the plasma. The control value of plasma ketamine just before the end of its infusion had not any significant relationship with the total dose of ketamine, total dose of fentanyl, blood loss or fluid given. The results of our study suggest that long continuous ketamine infusion would be safe as judged by its pharmacokinetics.

Adult↗
PubMed1991

[Effect of induced hypotension with prostaglandin E1 or trimetaphan on endocrine functions in surgical patients].

Twenty patients who underwent surgery of hip joint under enflurane anesthesia were studied to evaluate the effect of induced hypotension with prostaglandin E1 or trimetaphan on endocrine functions. Ten patients were given prostaglandin E1 and the remaining ten patients were given trimetaphan intravenously to maintain systolic blood pressure at about 80 mmHg. There were no significant differences between the two groups concerning plasma level of ACTH, cortisol, TSH, T3, T4, epinephrine and dopamine. However a significant difference in plasma norepinephrine levels was observed between them. Plasma norepinephrine levels after start of hypotension increased by 50% in the prostaglandin E1 group, but decreased by 50% in the trimetaphan group, when compared with each pre-hypotensive level. The data obtained suggest that the prostaglandin E1 would not influence ACTH-cortisol and thyroid functions, but may have a tendency to increase plasma norepinephrine levels in hypertensive patients complicated with pheochromocytoma.

Endocrine Glands↗
PubMed1990

Acute rhabdomyolysis associated with cocaine intoxication: a case report.

Over thirty million Americans are estimated to have tried cocaine at least once and 5 million use it on a regular basis. Recent media attention to the widespread use of cocaine has revealed the growing life-threatening complications that accompany its use. The effects of cocaine on the cardiovascular, pulmonary and central nervous system have been well-described in medical literature, but the complications of acute renal failure secondary to cocaine-induced rhabdomyolysis only recently have been addressed. Presented in this article is a case involving cocaine-induced acute renal failure.

Acute Disease↗