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Biomedical subjects

B Peat

Publications and source records attributed to B Peat.

10 recordsLinked to original sources
PubMed1992

Laparoscopic salpingostomy with electrocautery in the management of tubal pregnancy.

From August, 1990 to May, 1991, all cases of tubal pregnancy presenting to King George V Hospital for Mothers and Infants were considered for laparoscopic salpingostomy. This procedure involved opening the affected Fallopian tube with diathermy, removal of ectopic tissue via the laparoscope, achieving haemostasis and leaving the tubal incision to heal by secondary intention. The procedure was undertaken in 35 patients and was successfully performed in 31 patients with an average operating time of 66.4 minutes (+/- 20.1 minutes). Average hospital stay was 2.1 days (+/- 1.3). This paper examines the technique and results of the initial learning curve for laparoscopic salpingostomy and finds that with knowledge of potential hazards and care in surgery, this operation can be safely carried out in a selected group of patients.

Adolescent↗
PubMed1991

Second trimester abortion by extra-amniotic PGF2 alpha infusion: experience of 178 cases.

There is a continuing need for second trimester induced abortions, most recently due to the increase in the use of antenatal diagnostic procedures, amniocentesis, high resolution ultrasound and cordocentesis. To evaluate the efficacy and safety of extraamniotic infusion of PGF2 alpha for this purpose a retrospective review of 178 procedures was undertaken. There were 4 failures of the technique and the major complication rate was 5.6%. This rate was independent of gestational age. The mean induction to abortion interval was 29.6 (+/- 16.3) hours. The conclusion reached after comparison with other published data is that extraamniotic PGF2 alpha infusion is a slow and painful but safe and effective technique, but that at gestational ages less than 17 weeks, a comparative trial of Dilatation and Evacuation versus extraamniotic PGF2 alpha infusion would be justified.

Abortion, Induced↗
PubMed1989

Experience with silastic slings for female urinary incontinence.

Between September 1, 1985 and December 31, 1987, 54 patients with stress urinary incontinence were treated with a reinforced silastic sling using an abdominovaginal approach; 42 patients were cured, two improved and nine were the same or worse. Five patients who are continent required periodic intermittent self-catheterization. Eight patients developed detrusor instability postoperatively. One patient had to have the sling removed due to a persistent sinus. Fifteen patients had to have the sling adjusted.

Adult↗
PubMed1987

Perinatal factors and the development of chronic lung disease in preterm infants: a case control study.

A case control study of neonates was performed to determine those factors contributing to the development of chronic lung disease (CLD). During the 5 years 1981-84 there were 487 neonatal survivors at gestations of 25-32 weeks; 391 of these developed respiratory failure (oxygen therapy required for more than 6 h). Fifty-six of the latter developed CLD (oxygen therapy required for more than 28 days and a coarse reticular pattern on chest X-ray). These neonates were predominantly of the shortest gestational ages, regardless of the initial chest X-ray diagnosis. Forty-three of these infants with CLD were matched for gestation and initial chest X-ray appearance (respiratory distress syndrome, n = 20; normal, n = 15; non-specific, n = 8) with 42 control infants. The mean duration of oxygen therapy (P less than 0.001), maximum FiO2 (P less than 0.001), incidence (P less than 0.01) and duration of intermittent positive pressure respiration (IPPR; P less than 0.05) and peak IPPR (P less than 0.05) were significantly greater in the CLD group. Mean birthweight (P less than 0.001), arterial cord pH (P less than 0.05) and base excess (P less than 0.05) were significantly lower in the CLD group. Factors that were not statistically significant in the development of CLD included antenatal fetal heart rate abnormality, hypertensive disease of pregnancy, acute intrauterine infection (chorioamnionitis or umbilical vasculitis), administration of antenatal steroids, sex, patent ductus arteriosus and pneumothorax. The association between CLD and ventilator/oxygen therapy is confirmed. Contrary to other reports, male sex, clinical patent ductus arteriosus and pneumothorax were not associated with CLD.

Birth Weight↗
PubMed1986

Vascular and neural changes in the rat optic nerve following induction of diabetes with streptozotocin.

This study was undertaken to determine whether or not changes occur in blood vessels, axons or glia of the optic nerve as the result of streptozotocin-induced diabetes. Diabetes was induced in 4 weeks old Sprague-Dawley rats. At 12 and 16 weeks of age, the rats were killed and the optic nerves prepared for examination. The number and density of blood vessels was found to be significantly increased in the diabetic rats. No alteration in the structure of the blood vessels was noted. A decrease in the percentage volume of axons and an increase in the percentage volume of glial elements accompanied the increase in blood vessels in the diabetic rats. No difference was found in the spectrum of fibre diameters.

Animals↗
PubMedDate not supplied

Nasal symmetry: a 10-year comparison between the Pigott and McComb nasal correction.

The objective assessment of the symmetry of the cleft lip nose has not been properly evaluated. A simple technique using enlarged photographs and area assessment is described. Two different techniques were assessed, the Pigott "alar leapfrog" technique and the McComb alar lift technique. The children were assessed at 10 years of age. The results show no differences in the linear measurements or when the symmetry is assessed in the frontal view. In the worm's eye view, the Pigott correction was shown to produce a more asymmetric nose when compared with the McComb technique. Both corrections produce significant asymmetry when compared with a control group.

Abnormalities, Multiple↗