Recognition of infants at high risk for vertical HIV transmission at delivery in rural Western Cape Province, South Africa

Despite South Africa's substantial reduction in vertical HIV transmission (VHT), national paediatric HIV elimination is not yet attained. National and Western Cape Province (WC) HIV guidelines recommend enhanced postnatal prophylaxis for infants at high risk for VHT, identified in the WC 2015/2016 guidelines by any single high-risk criterion (maternal antiretroviral therapy (ART) <12 weeks, absent/ unsuppressed maternal HIV viral load (HIV-VL) <12 weeks before/including delivery, spontaneous preterm labour, prolonged rupture of membranes, chorioamnionitis). Accuracy of high-risk infant identification is unknown. Objectives. Primarily, to determine the proportion of infants at high risk for VHT, the accuracy of labour-ward risk classification, the criteria determining high-risk statuses and the criteria missed among unrecognised high-risk infants; secondarily, to determine maternal factors associated with high-risk infants. Methods. Infants born to women living with HIV at a rural regional hospital (May 2016 - April 2017) were retrospectively evaluated using data from the labour ward VHT register, standardised maternity case records, National Health Laboratory Service database and WC Provincial Health Data Centre. The study-derived risk status for each infant was determined using documented presence/absence of risk criteria and compared with labour ward assigned risk to determine accuracy. Proportions of high-risk and unrecognised high-risk infants with each high-risk criterion were determined. Maternal characteristics associated with having a high-risk infant were evaluated using multivariable logistic regression. Results. For liveborn infants, labour ward assigned risk classifications were 40% (n=75/188) high risk, 50% (n=94/188) low risk and 10% (n=19/188) unclassified. Study-derived risk was high risk for 69% (n=129/188) and low risk for 31% (n=59/188), yielding a high-risk classification sensitivity of 51% (95% confidence interval (CI) 42 - 60) and specificity of 69% (95% CI 56 - 80). Absent/unsuppressed HIVVL <12 weeks before delivery accounted for 83% (n=119/143) of study-derived high-risk exposures and 81% (n=60/74) of missed high-risk exposures. Fewer mothers of high-risk infants had >4 antenatal visits (38% v. 81%, p<0.01) and first antenatal visit <20 weeks' gestation (57% v. 77%, p=0.01). Only the number of antenatal visits remained associated with having a high-risk infant after adjusting for gestation at first visit and timing of HIV diagnosis and ART initiation: each additional antenatal visit conferred a 39% (95% CI 25 - 50) reduction in the odds of having a high-risk infant. Conclusion. Labour ward risk classification failed to recognise half of high-risk infants. Infant high-risk status as well as non-detection thereof were driven by suboptimal maternal HIV-VL monitoring. Reinforcing visit frequency later in pregnancy may improve antenatal HIV-VL monitoring, and point-of-care HIV-VL monitoring at delivery could improve recognition of virally unsuppressed mothers and their high-risk infants

Predictors of treatment success in smoking cessation with varenicline combined with nicotine replacement therapy v. varenicline alone

Background.Identification of the predictors of treatment success in smoking cessation may help healthcare workers to improve the effectiveness of attempts at quitting.Objective. To identify the predictors of success in a randomised controlled trial comparing varenicline alone or in combination with nicotine replacement therapy (NRT).Methods. A post-hoc analysis of the data of 435 subjects who participated in a 24-week, multicentre trial in South Africa was performed. Logistic regression was used to analyse the effect of age, sex, age at smoking initiation, daily cigarette consumption, nicotine dependence, and reinforcement assessment on abstinence rates at 12 and 24 weeks. Point prevalence and continuous abstinence rates were self-reported and confirmed biochemically with exhaled carbon monoxide readings.Results. The significant predictors of continuous abstinence at 12 and 24 weeks on multivariate analysis were lower daily cigarette consumption (odds ratio (OR) 1.86, 95% confidence interval (CI) 1.21 - 2.87, p=0.005 and OR 1.83, 95% CI 1.12 - 2.98, p=0.02, respectively) and older age (OR 1.52, 95% CI 1.00 - 2.31, p=0.049 and OR 1.79, 95% CI 1.13 - 2.84, p=0.01, respectively). There was no difference in the predictors of success in the univariate analysis, except that older age predicted point prevalence abstinence at 12 weeks (OR 1.47, 95% CI 1.00 - 2.15, p=0.049). The findings were inconclusive for an association between abstinence and lower nicotine dependence, older age at smoking initiation and positive reinforcement.Conclusion. Older age and lower daily cigarette consumption are associated with a higher likelihood of abstinence in patients using varenicline, regardless of the addition of NRT

The Impact of a Change in Referral Pathway on a Paediatric Short-Stay Ward in Cape Town; South Africa

Background. The opening of the new Khayelitsha District Hospital in April 2012 coincided with a change in referral pathway to Tygerberg Hospital (TBH) for children requiring specialist care. Objective. To determine the disease burden impact of the referral pathway change on paediatric short-stay ward admissions at TBH. Methods. A retrospective cohort study; analysing routine health information as captured in ward admissions registers over two similar seasonal periods: 1 April - 30 September 2011 (prior to referral change) and 1 April - 30 September 2012 (post referral change). Results. Paediatric short-stay ward admissions remained similar; but a statistically significant increase in the number of admissions from Khayelitsha sub-district (SD) (p0.001) was seen. The median age was 13 months over the two time periods.Children from Khayelitsha (median age 9.49 months for 2011 and 5.2 months for 2012) were; however; significantly younger than those from other SDs (median age 26.31 months in 2011 and 26.44 months in 2012) (p

Evaluation of the Clinical Management of HIV-Infected Patients by Private Sector Doctors in the eThekwini Metro; KwaZulu-Natal

Background: Although private sector doctors are the backbone of treatment service in many countries; caring for patients with HIV entails a whole new set of challenges and difficulties. The few studies done on the quality of care of HIV patients; in the private sector in developing countries; have highlighted some problems with management. In South Africa; two-thirds of doctors work in the private sector. Though many studies on HIV/AIDS have been undertaken; few have been done in the private sector in terms of the management of this disease. Therefore; a study was undertaken to evaluate the clinical management of HIV-infected patients by private sector doctors. Methods: A descriptive cross-sectional study was undertaken in the eThekwini Metro in KwaZulu-Natal; South Africa; with 190 private sector doctors who; in the first phase of the study; indicated that they manage HIV and AIDS patients and would be willing to participate in the second phase of the study. The HIV guidelines of the Department of Health and Human Services and the South African National Department of Health were used to compare the treatment of HIV patients by these doctors. Results: Eighty-five doctors (54.5) always measured the CD4 count and viral load levels at diagnosis. Both CD4 counts and viral load were always used by 76 doctors (61.8) to initiate therapy. Of the doctors; 134 (78.5) initiated therapy at CD4 count 200 cells/mm3. The majority of doctors prescribed triple therapy regimens using the 2 NRTI + 1 NNRTI combination. Doctors who utilised CD4 counts tended to also use viral load (VL) to assess effectiveness and change therapy (p 0.001). At initiation of treatment; 68.5of the doctors saw their patients monthly and 64.3saw them every three to six months; when stable. Conclusion: The majority of private sector doctors were compliant with current guidelines for HIV management; hence maintaining an acceptable quality of clinical healthcare

Procedure for Prolapsed Haemorrhoids Versus Excisional Haemorrhoidectomy: a Systematic Review and Meta-Analysis

Background. The procedure for prolapse and haemorrhoids (PPH) was introduced to address the postoperative pain following excisional haemorrhoidectomy (EH). Objective. To assess the efficacy of both procedures to treat haemorrhoids. Data sources. Literature review using MEDLINE. Articles addressing PPH and EH were included. Study selection. RCTs comparing EH and PPH with =20 patients. Data extraction. Primary endpoints were pain; operative time; hospital stay; satisfaction with procedure and time to return to normal activity. Secondary endpoints such as recurrence and complications were collated for descriptive analysis. A metaanalysis was performed using the random effects model on studies reporting `mean' and SD or SEM. Data synthesis. PPH was associated with less postoperative pain; less operative time; shorter hospital stay and earlier return to normal activities compared with EH. There appears to be no significant difference in satisfaction with the procedure. There was no difference between the two procedures in terms of complications. There were more recurrences after PPH. Conclusion. Compared with EH; PPH is associated with less postoperative pain; reduced operative time and hospital stay and earlier return to normal activity; and a trend towards improved patient satisfaction. The rate of recurrence appears higher with PPH