Browsing by Author "Ngwenya, S."

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    Changes in causes of pregnancy‑related and maternal mortality in Zimbabwe 2007‑08 to 2018‑19: findings from two reproductive age mortality surveys
    (BMC Public Health, 2022) Musarandega, R.; Ngwenya, S.; Murewanhema, G.; Machekano, R.; Magwali, T.; Nystrom, L.; Pattinson, R.; Munjanja, S.
    Background Reducing maternal mortality is a priority of Sustainable Development Goal 3.1 which requires frequent epidemiological analysis of trends and patterns of the causes of maternal deaths. We conducted two reproductive age mortality surveys to analyse the epidemiology of maternal mortality in Zimbabwe and analysed the changes in the causes of deaths between 2007-08 and 2018-19. Methods We performed a before and after analysis of the causes of death among women of reproductive ages (WRAs) (12-49 years), and pregnant women from the two surveys implemented in 11 districts, selected using multi-stage cluster sampling from each province of Zimbabwe (n=10); an additional district selected from Harare. We calculated mortality incidence rates and incidence rate ratios per 10000 WRAs and pregnant women (with 95% confidence intervals), in international classification of disease groups, using negative binomial models, and compared them between the two surveys. We also calculated maternal mortality ratios, per 100 000 live births, for selected causes of pregnancy-related deaths. Results We identified 6188 deaths among WRAs and 325 PRDs in 2007-08, and 1856 and 137 respectively in 2018-19. Mortality in the WRAs decreased by 82% in diseases of the respiratory system and 81% in certain infectious or parasitic diseases' groups, which include HIV/AIDS and malaria. Pregnancy-related deaths decreased by 84% in the indirect causes group and by 61% in the direct causes group, and HIV/AIDS-related deaths decreased by 91% in pregnant women. Direct causes of death still had a three-fold MMR than indirect causes (151 vs. 51 deaths per 100 000) in 2018-19. Conclusion Zimbabwe experienced a decline in both direct and indirect causes of pregnancy-related deaths. Deaths from indirect causes declined mainly due to a reduction in HIV/AIDS-related and malaria mortality, while deaths from direct causes declined because of a reduction in obstetric haemorrhage and pregnancy-related infections. Ongoing interventions ought to improve the coverage and quality of maternal care in Zimbabwe, to further reduce deaths from direct causes.
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    Determinants of eclampsia in women with severe preeclampsia at Mpilo Central Hospital, Bulawayo, Zimbabwe
    (Elsevier, 2021-07-15) Ngwenya, S.; Jones, B.; Mwembe, D.; Nare, H.; Heazell, A.E
    Objective: Globally, preeclampsia is a significant contributor to adverse maternal outcomes. Once women develop eclampsia, they face considerable risks especially in countries with limited resources to deal with such a life-threatening complication. This study was carried out to investigate determinants of eclampsia in pregnant mothers with severe preeclampsia. Study design. This institutional based study was completed at Mpilo Central Hospital, a quaternary referral unit from 1st January 2016 – 31st December 2018. In this study, pregnant women with severe preeclampsia/eclampsia were the study participants. The independent variables included socio-demographic and clinical characteristics, and maternal outcomes. Multivariable logistic regression analyses were used to determine independent association with p < 0.05 taken as statistically significant with 95% Confidence Interval (CI). Main outcome measure. Eclampsia. Results: Development of eclampsia was more frequent in women aged 14–19 years compared to women aged ≥ 35 years (adjusted odds ratio (AOR) 6.64, 95% CI 1.20–22.06, p = 0.02) and in primiparous women compared to women with parity ≥ 3 (AOR 2.76, 95% CI 1.48–5.15, p = 0.001). Eclampsia was more frequent in women with diastolic blood pressure of 131–150 mmHg (AOR 5.48, 95% CI 1.05–28.75, p = 0.04), and ≥ 150 mmHg (AOR 5.78, 95% CI 1.05–31.78, p = 0.04) compared with those with diastolic blood pressure of ≤ 110 mmHg. Symptoms of visual disturbances were also associated with eclampsia (AOR 2.13, 95% CI 1.08–4.18, p = 0.03). Conclusions: This study has identified independent determinants of eclampsia which can be used to identify which women should receive magnesium sulphate prophlyaxis or more intensive monitoring to prevent deterioration in maternal condition.
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    Diffusion of intellectual property knowledge in Zimbabwean universities: tools, programmes and strategies
    (Emerald, 2025-01-13) Ngwenya, S.; Onyancha, O.B.
    Purpose This paper aims to explore the diffusion of Intellectual Property (IP) knowledge in universities in Zimbabwe. Specifically, the study examines the tools, policies, programmes and unique strategies used by the universities. Design/methodology/approach The paper reports the findings of a survey that was conducted on a population of lecturers (1,546), research officers (RO) (11), IP officer (1), faculty librarians (FLs) (27) and final year undergraduate students (9,224) at universities in Zimbabwe. Questionnaires were administered to the lecturers and students while interviews were administered to the IP officer, ROs and FLs. Data analysis comprised the use of Google forms and Microsoft Excel software. Findings The findings reveal diffusing IP knowledge in Zimbabwean universities involves mainly the use of policies and regulations, library web pages, workshops, although not specifically on IP, presentations on IP in the university, advice and guidance services and IP lectures/teaching. Research limitations/implications This study presents the IP situation in Zimbabwe and its findings may be applied to Africa and other developing countries. Practical implications This study endorses IP as a national issue and suggests a benchmark for diffusing knowledge on IP in Zimbabwean universities. Originality/value This study acknowledges the multi-disciplinary nature of IP and should lead to all university students graduating with adequate knowledge on IP.
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    Reducing maternal mortality: a 10-year experience at Mpilo Central Hospital, Bulawayo, Zimbabwe.
    (De Gruyter, 2023) Ngwenya, S.; Mhlanga, S.; Moyo, S.; Lindow, S.W.
    Objectives: Maternal mortality is one of the major Sustainable Development Goals (SDGs) of the global health community. The aim of the SDG 3.1 is to reduce global maternal mortality ratio considerably by 2030. The objective of this study was to document the epidemiological trends in maternal mortality for Mpilo Central Hospital. Methods: This was a 10 year retrospective study using readily available data from the maternity registers. The International Classification of Diseases-Maternal Mortality (ICD-MM) coding system for maternal deaths was used. Results: The maternal mortality ratio (MMR) declined from 655 per 100,000 live births in 2011 to 203 per 100,000 live births by 2020. The commonest groups of maternal mortality during the period 2011–2020 were hypertensive disorders, obstetric haemorrhage, pregnancy-related infection, and pregnancies with abortive outcomes. There were 273 maternal deaths recorded in the period 2011–2015, and 168 maternal deaths in the period 2016–2020. There was also a decline in maternal deaths due to obstetric haemorrhage (53 vs. 34). Maternal deaths due to pregnancy-related infection also declined (46 vs. 22), as well as pregnancies with abortive outcomes (40 vs. 26). Conclusions: There was a 69% decline in the MMR over the 10 year period. The introduction of government interventions such as malarial control, the adoption of life-long Option B+ antiretroviral treatment for the pregnant women, the training courses of staff, and the introduction of strong clinical leadership and accountability were all associated with a significant decline in the causes of maternal deaths.
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    Resilience and vulnerability of maternity services in Zimbabwe: a comparative analysis of the efect of Covid-19 and lockdown control measures on maternal and perinatal outcomes, a single-centre cross-sectional study at Mpilo Central Hospital
    (Springer Nature, 2021-06-04) Shakespeare, C.; Dube, H.; Moyo, S.; Ngwenya, S.
    Background On the 27th of March 2020 the Zimbabwean government declared the Covid-19 pandemic a ‘national disaster’. Travel restrictions and emergency regulations have had significant impacts on maternity services, including resource stock-outs, and closure of antenatal clinics during the lockdown period. Estimates of the indirect impact of Covid-19 on maternal and perinatal mortality was expected it to be considerable, but little data was yet available. This study aimed to examine the impact of Covid-19 and lockdown control measures on non-Covid outcomes in a government tertiary level maternity unit in Bulawayo, Zimbabwe, by comparing maternal and perinatal morbidity and mortality before, and after the lockdown was implemented. Methods This was a retrospective, observational study, using a cross-sectional design to compare routine monthly maternal and perinatal statistics three months before and after Covid-19 emergency measures were implemented at Mpilo Central Hospital. Results Between January-March and April-June 2020, the mean monthly deliveries reduced from 747.3 (SD ± 61.3) in the first quarter of 2020 to 681.0 (SD ± 17.6) during lockdown, but this was not statistically significant, p = 0.20. The Caesarean section rates fell from a mean of 29.8% (SD ± 1.7) versus 28.0% (SD ± 1.7), which was also not statistically significant, p = 0.18. During lockdown, the percentage of women delivering at Mpilo Central Hospital who were booked at the hospital fell from a mean of 41.6% (SD ± 1.1) to 35.8% (SD ± 4.3) which was statistically significant, p = 0.03. There was no significant change, however, in maternal mortality or severe maternal morbidity (such as post-partum haemorrhage (PPH), uterine rupture, and severe preeclampsia/eclampsia), stillbirth rate or special care baby unit admission. There was an increase in the mean total number of early neonatal deaths (ENND) (mean 18.7 (SD ± 2.9) versus 24.0 (SD ± 4.6), but this was not statistically significant, p = 0.32. Conclusions Overall, maternity services at Mpilo showed resilience during the lockdown period, with no significant change in maternal and perinatal adverse outcomes, with the same number of man-hours worked before and during the lockdown Maternal and perinatal outcomes should continue to be monitored to assess the impact of Covid-19 and the lockdown measures as the pandemic in Zimbabwe unfolds. Further studies would be beneficial to explore women’s experiences and understand how bookings and deliveries at local clinics changed during this time.
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    The prevalence of and risk factors for stillbirths in women with severe preeclampsia in a high-burden setting at Mpilo Central Hospital, Bulawayo, Zimbabwe
    (De Gruyter, 2022) Ngwenya, S.; Jones, B.; Mwembe, D.; Nare, H.; Heazell, A.E.P.
    Stillbirth remains a global public health issue; in low-resource settings stillbirth rates remain high (>12 per 1,000 births target of Every Newborn Action Plan). Preeclampsia is major risk factor for stillbirths. This study aimed to determine the prevalence and risk factors for stillbirth amongst women with severe preeclampsia at Mpilo Central Hospital. A retrospective cross-sectional study was conducted of women with severe preeclampsia from 01/01/2016 to 31/12/2018 at Mpilo Central Hospital, Bulawayo, Zimbabwe. Multivariable logistic regression was used to determine risk factors that were independently associated with stillbirths. Of 469 women that met the inclusion criteria, 46 had a stillbirth giving a stillbirth prevalence of 9.8%. The risk factors for stillbirths in women with severe preeclampsia were: unbooked status (adjusted odds ratio (aOR) 3.01, 95% (confidence interval) CI 2.20–9.10), frontal headaches (aOR 2.33, 95% CI 0.14–5.78), vaginal bleeding with abdominal pain (aOR 4.71, 95% CI 1.12–19.94), diastolic blood pressure ≥150 mmHg (aOR 15.04, 95% CI 1.78–126.79), platelet count 0–49 × 109/L (aOR 2.80, 95% CI 1.26–6.21), platelet count 50–99 × 109/L (aOR 2.48, 95% CI 0.99–6.18), antepartum haemorrhage (aOR 12.71, 95% CI 4.15–38.96), haemolysis elevated liver enzymes syndrome (HELLP) (aOR 6.02, 95% CI 2.22–16.33) and fetal sex (aOR 2.75, 95% CI 1.37–5.53). Women with severe preeclampsia are at significantly increased risk of stillbirth. This study has identified risk factors for stillbirth in this high-risk population; which we hope could be used by clinicians to reduce the burden of stillbirths in women with severe preeclampsia.