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Biomedical subjects

R W Beard

Publications and source records attributed to R W Beard.

At least 181 records · Page 10Linked to original sources
PubMed1972

Effect of sustained maternal hyperglycaemia on the fetus in normal and diabetic pregnancies.

The effect of prolonged maternal hyperglycaemia on fetal plasma glucose and insulin concentrations was investigated in eight normal and nine diabetic patients. It was found that under fasting conditions the fetal glucose concentration in gestational diabetic pregnancies tended to be lower than in normal pregnancies. Insulin measurements suggested that this may be due to fetal hyperinsulinism in the diabetic group. During glucose infusion, regardless of the degree of maternal hyperglycaemia, the fetal glucose concentration was limited in 12 out of 13 cases to less than 200 mg/100 ml, with only small differences between normal and diabetic pregnancies. It is proposed that the placenta prevents unlimited transport of glucose to the fetus; yet in diabetic pregnancies a sequence of increased maternal-fetal glucose transport, fetal hyperinsulinism, and fetal hypoglycaemia may contribute to the observed perinatal mortality.

Blood Glucose↗
PubMed1971

Outpatient termination of pregnancy.

Termination of pregnancies ranging from 6 to 10 weeks' gestation is described in 127 women who attended the hospital as outpatients. The technique employed was to aspirate the products of conception through a narrow plastic tube using a high negative pressure. Infiltration of the cervix with local anaesthetic proved so effective that the procedure could be carried out on the fully conscious patient. The short time taken to evacuate the uterus, the small blood loss, and the low incidence of complications in the latter part of the study suggest that the technique is a valuable procedure. Relatively more women can be terminated as outpatients than as inpatients with a corresponding reduction in the demands made on gynaecological beds.

Abortion, Legal↗
PubMed1971

Termination of pregnancy with intra-amniotic hypertonic saline.

Successful therapeutic abortion was performed consecutively by an intra-amniotic injection of hypertonic saline in 102 out of 110 patients in whom the size of the uterus corresponded with a pregnancy of 16 weeks or more.A spontaneous abortion of the fetus followed the injection alone in 92 of the cases, and the overall injection-delivery interval was 39.75 (range 11-98) hours. In 10 women intravenous oxytocin injection was used as an additional uterine stimulant because contractions were not established after 48 hours. Complete spontaneous expulsion of the placenta occurred in 71 cases, and evacuation of the placenta under general anaesthesia was required in the other 31.No major complication occurred among the 110 patients.

Abortion, Therapeutic↗