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Biomedical subjects

R Gosling

Publications and source records attributed to R Gosling.

11 recordsLinked to original sources

Attitudes to voluntary counselling and testing prior to the offer of Nevirapine to prevent vertical transmission of HIV in northern Tanzania.

In developed countries much progress has been made in reducing vertical transmission of HIV using antiretroviral therapies. To achieve similar gains in Africa the acceptability of routine HIV testing of pregnant women is becoming increasingly important. Evidence of reluctance of pregnant women to undergo HIV testing has led to suggestions to offer antiretroviral therapy to pregnant women without prior HIV testing. In this study we set out to identify risk factors for preferring to avoid HIV testing among women attending an antenatal clinic in northern Tanzania in the context of a hypothetical offer of Nevirapine and to explore the issues raised in more detail in focus group discussions. Two hundred and fifty women attending an antenatal clinic in late pregnancy were interviewed. Almost half of the women preferred to be offered Nevirapine without HIV testing. In a multiple logistic model having a partner with a history of a sexually transmitted disease (OR 2.72, 95% CI 1.14-6.47, p = 0.02) and having a partner who had another sexual partner in the last year (OR 1.89, 95% CI 1.04-3.45, p = 0.04) were positively associated with a preference to avoid HIV testing; while the presence of a partner living at home or feeling able to ask their partner to go for an HIV test were negatively associated with a preference to avoid HIV testing (OR 0.46, 95% CI 0.24-0.89, p = 0.02 and OR 0.56, 95% CI 0.3-1.05, p = 0.07 respectively). FGDs (focus group discussions) suggested that the major concern of women was for the reaction of their male partners to the possibility of a positive HIV test and low confidence in the confidentiality of HIV testing. This fear may lead to low uptake of antiretroviral programmes and treatment without prior testing should be considered.

Adolescent↗

Prevalence of hospital-acquired infections in a tertiary referral hospital in northern Tanzania.

Hospital-acquired infections (HAI) are a major and largely preventable cause of morbidity and morbidity worldwide. Very few reports on the prevalence of HAI in sub-Saharan Africa have been published and most of those that have appeared in the press have focused on surgical-wound infection. In the present, questionnaire-based, point-prevalence study, in which the doctor on the ward round was used as the primary informant, the prevalences of all HAI among all the inpatients at a tertiary referral hospital in northern Tanzania were estimated. On the day of the study, there were 412 inpatients (in 15 ward areas) and 61 cases of HAI were identified, giving an overall HAI prevalence of 14.8%. The prevalences of HAI were particularly high in the medical intensive-care unit (40%), the surgical (orthopaedic and general surgery) wards (36.7%), and one of the general medical wards (22.2%). Factors associated with a patient having a HAI were hospitalization for >30 days [odds ratio (OR) = 4.07; 95% confidence interval (CI) = 2.07-7.99]; being a patient on the orthopaedic and general surgical ward known as 'Surgical 2' (OR = 2.14; CI = 1.02-4.46); and being referred from another health facility (OR = 1.90; CI = 1.02-3.42). The most commonly identified HAI in the hospital were urinary-tract infections (14 cases), followed by surgical-wound infections (10 cases) and then lower respiratory-tract infections (six cases). Twenty HAI were 'unspecified'. The study was rapid and cheap to carry out. The results not only gave a baseline estimate of HAI in the study setting but also identified key areas for interventions to reduce HAI.

Adolescent↗

Efficacy of artesunate plus pyrimethamine-sulphadoxine for uncomplicated malaria in Gambian children: a double-blind, randomised, controlled trial.

BACKGROUND: Resistance to cheap effective antimalarial drugs, especially to pyrimethaminesulphadoxine (Fansidar), is likely to have a striking impact on childhood mortality in sub-Sharan Africa. The use of artesunate (artesunic acid) [corrected] in combination with pyrimethamine-sulphadoxine may delay or prevent resistance. We investigated the efficacy, safety, and tolerability of this combined treatment. METHODS: We did a double-blind, randomised, placebo-controlled trial in The Gambia. 600 children with acute uncomplicated Plasmodium falciparum malaria, aged 6 months to 10 years, at five health centres were randomly assigned pyrimethaminesulphadoxine (25 mg/500 mg) with placebo; pyrimethamine-sulphadoxine plus one dose of artesunate (4mg/kg bodyweight); or pyrimethamine-sulphadoxine plus one dose 4 mg/kg bodyweight artesunate daily for 3 days. Children were visited at home each day after the start of treatment until parasitaemia had cleared. FINDINGS: The combined treatment was well tolerated. No adverse reactions attributable to treatment were recorded. By day 1, only 178 (47%) of 381 children treated with artesunate were still parasitaemic, compared with 157 (81%) of 195 children in the pyrimethamine-sulphadoxine alone group (relative risk 1.7 [95% CI 1.5-2.0], p<0.001). Treatment-failure rates at day 14 were 3.1% in the pyrimethamine sulphadoxine alone group, and 3.7% in the one-dose artesunate group (risk difference -0.6% [-4.2 to 3.0]) and 1.6% in the three-dose group (1.5 [1.5-4.5], p=0.048). Symptoms resolved faster in children who received artesunate, but there was no additional benefit for three doses of artesunate over one dose. Children given artesunate were less likely to be gametocytaemic after treatment. INTERPRETATION: The combined treatment was safe, well tolerated, and effective. The addition of artesunate to malaria treatment regimens in Africa results in lower gametocyte rates and may lower transmission rates.

Animals↗

Training health workers to assess anaemia with the WHO haemoglobin colour scale.

WHO recommends that all pregnant women be screened for anaemia. In rural Africa this is often done by clinical examination which is known to have variable reliability. The recently developed WHO Haemoglobin Colour Scale may be the answer to this problem as it is simple and reliable. This study examines the training procedure recommended by WHO for the Haemoglobin Colour Scale when resources are very limited. We trained 7 laboratory technicians from the Medical Research Council Laboratories Hospital, Fajara, The Gambia and 13 Community Health Nurses (CHNs) from North Bank Division East, a rural area in The Gambia, to use the Colour Scale. The CHNs used the Scale to estimate haemoglobins on all new bookings to the antenatal clinics for a period of one month and recorded how they were managed. At the end of the study period they completed a qualitative questionnaire about the scale. Both groups of trainees were successfully trained although the WHO protocol for training was impossible to follow due to resource limitations. Eight of the 13 trained CHNs used the scale in practice and recorded 307 estimations with a mean haemoglobin of 9.1 g/dl. The results were normally distributed. Six of the 9 patients with Hb readings of < 4 g/dl were managed correctly. In response to the questionnaire the CHNs thought the scale was cheap, easy and quick to use and as good as the haemoglobinometer they had used previously. The main criticism was that it was not robust enough. The development of a low-technology, cheap, simple and reliable method for measuring haemoglobin is a welcome development. However, a simpler training procedure and a standard way of measuring observer performance are necessary.

Anemia↗

Doctor's dress.

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Clinical Competence↗

Creatine phosphokinase activity during lithium treatment.

In a group of patients suffering from manic depressive illness treated with lithium carbonate occasional large increases in creatine phosphokinase (C.P.K.) activity were seen. These were found to occur at times when the patients were stable in mood and clinically well. The serum lithium levels were adequate in all cases at the time of raised C.P.K. activity. Raised C.P.K. activity can be an indication that the disease is active but is controlled by lithium.

Bipolar Disorder↗