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Biomedical subjects

G M Turner

Publications and source records attributed to G M Turner.

31 records · Page 2Linked to original sources
PubMed1984

The efficacy of graduated compression stockings in the prevention of deep vein thrombosis after major gynaecological surgery.

The efficacy of graduated compression stockings in the prevention of deep vein thrombosis (DVT) after major gynaecological surgery was investigated in a controlled randomized prospective trial in 196 patients who were greater than 35 years of age. The stockings were worn by 104 of the 196 patients throughout their stay in hospital, the other 92 patients did not wear the stockings (control group). All the patients were scanned for DVT postoperatively with the 125I-labelled fibrinogen test. None of the 104 patients who wore the stockings developed a thromboembolism, but four of the 92 control patients who did not wear the stockings had DVT. This difference between the two groups was statistically significant.

Adult↗
PubMed1982

Plasma lactoferrin levels in pregnancy and cystic fibrosis.

Plasma lactoferrin levels were determined by radioimmunoassay for the different weeks of normal pregnancy, in normal healthy adults and in children with and without cystic fibrosis. The lactoferrin levels were higher in pregnancy than in both male and female normal adults and showed a slight progressive increase up to week 29 and thereafter remained high. Five our of seven children with cystic fibrosis had markedly raised plasma lactoferrin levels from six to 16 times higher than the mean of a control group of children.

Adolescent↗
PubMed1982

Neurological normality after extreme birth asphyxia. Case report.

A case of extremely severe birth asphyxia is reported. In spite of successful resuscitation the arterial pH was still only 6.6 at the age of 1 h. Assessment at 3 years 10 months revealed that the child was not only completely normal, but was of superior intelligence. This case demonstrates the advisability of maintaining an optimistic approach even when very severe fetal acidosis is detected around the time of birth.

Acidosis↗
PubMed1981

The effect of pre-operative povidone iodine vaginal pessaries on vault infections after hysterectomy.

The frequency of clinical infection of the vaginal vault after hysterectomy was compared in two groups of patients, a study group treated with povidone-iodine vaginal pessaries for 36 hours pre-operatively and prepared with povidone-iodine preparations at the time of operation, and a control group given no preliminary treatment and prepared with chlorhexidine preparations at the time of operation. No significant difference was demonstrated between the two groups. Vault infection occurred in 32% of the entire series of patients (severe infection 14%) and infection correlated with the presence of pathogenic bacteria in the vagina. No significant differences in bacterial colonisation of the vagina between the two groups were demonstrated at any stage of the investigation. Preliminary preparation of the vagina with povidone-iodine pessaries is not recommended.

Adult↗
PubMed1968

Management of pregnancy complicated by hypertrophic obstructive cardiomyopathy.

We report our experiences with nine women suffering from hypertrophic obstructive cardiomyopathy who between them had 13 pregnancies, 10 of which were directly managed by us. Though at first we felt that the theoretical hazards of vaginal delivery indicated elective caesarean section, experience has convinced us that in the absence of an obstetrical contraindication these patients may be delivered vaginally provided a betaadrenergic blocking drug is administered during pregnancy and especially during labour, ergometrine is given at the end of the second stage, adequate supplies of cross-matched blood are available, and prophylaxis against infective endocarditis is administered. We have found no evidence of any adverse effects of either propranolol or pronethalol on the foetus.

Adolescent↗
PubMedDate not supplied

Role of the fastigial nucleus in generalized seizures as demonstrated by GABA agonist microinjections.

The cerebellum is electrically and metabolically active during seizures. Numerous studies have also shown that cerebellar electrical stimulation and lesions of the cerebellar cortex or nuclei influence seizure threshold, but there are significant contradictions, with different effects observed even in investigations using the same species and similar seizure types and experimental manipulations. Discrete intracerebral microinjection of neuroactive agents has been used to characterize the way in which other brain regions control seizures, but has not been applied to the cerebellar systems. This approach has advantages because effects are restricted to specific receptors and spare passing axons; experimental variables also can be simply specified and reproduced. We used this method to characterize the role of the cerebellar nuclei in seizures and to determine if observed effects could be reproduced with different agents at different doses. Effects of bilateral control microinjections in the fastigial (medial) cerebellar nucleus were compared with different doses of the GABAA agonist piperidine-4-sulfonic acid and the GABAB agonist (-)baclofen (Bf). Soon after injection, the animals were ataxic. After 4 min, seizures were induced by timed continuous intravenous (i.v.) bicuculline (BIC) infusion. Both GABA agonists produced significant reductions in myoclonic, clonic, and tonic seizure thresholds. Injections just dorsal or anterior to this nucleus and bilateral dentate (lateral) nucleus injections had little effect on seizures. These results demonstrate that the cerebellar system does control seizures, but does not provide support for the early concept that cerebellar stimulation and systemic phenytoin block seizures through inhibition of cerebellar nuclei secondary to Purkinje cell activation.

Animals↗