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Biomedical subjects

D M Hailey

Publications and source records attributed to D M Hailey.

52 records · Page 3Linked to original sources
PubMed1977

Plasma concentrations of benzodiazepines.

1. Twenty anxious patients were treated with medazepam, diazepam, chlordiazepoxide, amylobarbitone and placebo, each given in flexible dosage for 2-4 weeks. 2. At the end of each treatment, a series of clinical, physiological and behavioural variables were measured and plasma samples were taken for estimation of the appropriate drug and metabolite concentrations. 3. Nordiazepam was shown to be an important metabolite of both medazepam and diazepam: the ratio of medazepam to noradiazepam was 0.14 and the ratio of diazepam to nordiazepam following diazepam administration was 0.72. 4. No significant correlations were found between the plasma concentrations of any of the treatments and the clinical ratings or behavioural measures. 5. Some relationship was shown between levels of medazepam and its physiological effects.

Amobarbital↗
PubMed1975

Biliary excretion of diazepam in man.

In a study of diazepam metabolism, diazepam 10 mg was administered i.m. to four patients who had biliary T-tube drainage. Blood and bile diazepam metabolite concentrations were measured for 12 hr. The expected fluctuations in blood diazepam concentrations were seen, and conjugated diazepam metabolites were present in human bile. Bile diazepam concentrations were insufficient to account for an enterohepatic circulation.

Aged↗
PubMed1975

Continuous pethidine/diazepam infunsion during labour and its effects on the newborn.

This paper presents a study comparing the effects on the mother and baby of a continuous intravenous infusion of pethidine and diazepam and of intramuscular pethidine and promazine. It is concluded that the administration of intravenous pethidine and diazepam is safe in labour provided that diazepam has not been given during the previous week.

Anesthesia, Obstetrical↗
PubMed1973

Diazepam in labour: its metabolism and effect on the clinical condition and thermogenesis of the newborn.

Following the administration of diazepam to mothers in labour the clinical effects, changes in thermogenesis, and metabolism of the drug in the newborn were observed under carefully controlled conditions. A total maternal dose of 30 mg or less in the 15 hours before delivery had little effect on the infants' state. Larger doses, however, were accompanied by low Apgar scores at birth, apnoeic spells, hypotonia, reluctance to feed, and an impaired metabolic response to a cold stress. Measurement of plasma levels of diazepam and its active metabolite showed that both products were detectable in significant concentrations in some infants for up to eight days. We conclude that greater care should be taken in the use of this otherwise effective drug for the treatment of pre-eclampsia.

Apgar Score↗