The effect of naloxone on the preoperative gastric volume and pH

The effect of 4 mg oral naloxone on preoperative gastric volume and pH of gastric aspirate was studied in a double-blind, randomized study. Twenty patients received 10 ml of naloxone (4 mg) mixed with 10 ml of orange juice, and 20 patients received 10 ml of isotonic saline mixed with 10 ml of orange juice, 2 h before surgery. Gastric content was obtained immediately after intubation of the trachea. No significant difference in gastric volume and pH of gastric aspirate was found between the two groups. It is concluded that naloxone does not affect gastric emptying and gastric acid secretion to a degree great enough to protect against aspiration of gastric contents into the lungs.     

Impact of post-abortion counselling in a semi-urban town of Western Nigeria.

This study is designed to evaluate the impact of post-abortion counselling in bringing about changes in sexual behaviour among patients who had treatment for an induced abortion and/or its complication in the department of gynaecology and obstetrics of Wesley Guild Hospital Ilesa and Folasola Specialist Hospital between January 1999 and December 2001. A structured questionnaire designed to evaluate the impact of counselling was administered to 108 patients, who formed part of 238 patients who had undergone induced abortion and who benefitted from the behavioural contract counselling technique. The results showed that the percentage of women using contraception increased from 30 (27.8%) to 53 (49.1%) at the time of interview. The number of subjects with multiple sexual partners fell from about 62 (58%) to 12 (11%). About 24 (45%) found access to contraception difficult. Major factors influencing contraceptive usage and change in behaviour include suffering experienced at the time of termination 26 (49%) and knowledge of contraception 19 (36%). The study advocates post-abortion counselling as a tool to increasing contraceptive usage in women and influencing behavioural changes positively towards health promotives measures.     

Natural history of morbid obesity without surgical intervention.

BACKGROUND: To study the mortality among morbidly obese patients qualifying for bariatric surgery. Mortality from bariatric surgery for morbid obesity has been widely reported; however, little is known about the mortality in morbidly obese patients who defer surgery. METHODS: Consecutive patients evaluated for bariatric surgery with an initial encounter between 1997 and 2004 were identified. The Social Security Death Index and office records were used to identify mortality through 2006. We conducted telephone interviews to determine whether the 305 patients who did not undergo bariatric surgery at our institution had undergone the surgery elsewhere. Using Cox proportional hazards models, we compared the mortality in patients undergoing surgery with that of those who did not. To evaluate bias resulting from missing data, we conducted analyses assuming that all patients with missing data had (1) undergone surgery and (2) not undergone surgery. RESULTS: A total of 908 patients underwent bariatric surgery (880 patients at our institution and 28 patients elsewhere). A total of 112 patients did not undergo surgery. Data regarding surgery on 165 patients could not be obtained. The mortality in those patients who did not undergo surgery was 14.3% compared with 2.9% for those who did undergo surgery. Adjusting for age, gender, and body mass index, patients who had undergone surgery had an 82% reduction in mortality (hazard ratio 0.18, 95% confidence interval 0.09-0.35, P <.0001). Sensitivity analysis, assuming that all patients with missing data received surgery resulted in an 85% mortality reduction (P <.001) and assuming that patients did not receive surgery resulted in a 50% mortality reduction (P = .04). CONCLUSIONS: Mortality among morbidly obese patients without surgery was 14.3% during the study period. Surgical intervention offered a 50%-85% mortality reduction benefit.