Browsing by Author "Lloyd, L. G."

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    Neonatal listeriosis during a countrywide epidemic in South Africa : a tertiary hospital’s experience
    (Health & Medical Publishing Group, 2018) Dramowski, Angela; Lloyd, L. G.; Bekker, A.; Holgate, S.; Aucamp, M.; Reddy, K.; Finlayson, H.
    Background. A countrywide epidemic of Listeria monocytogenes (LM) in South Africa began in the first quarter of 2017, rapidly becoming the world’s largest LM outbreak to date. Methods. We describe the clinical course of neonates with culture-confirmed LM infection admitted to a tertiary neonatal unit at Tygerberg Hospital, Cape Town (1 January 2017 - 31 January 2018). Current epidemic LM cases were compared with a historical cohort of sporadic neonatal LM cases at our institution (2006 - 2016). The global literature on epidemic neonatal LM outbreaks (1 January 1978 - 31 December 2017) was reviewed. Results. Twelve neonates (median gestational age 35 weeks, median birth weight 2 020 g) were treated for confirmed LM bacteraemia in 2017/18, presenting at a median age of 0.5 days. In 5 cases, neurolisteriosis was suspected. Three neonates died (25.0%) v. 8/13 neonatal deaths (61.6%) in the sporadic listeriosis cohort (2006 - 2016) (p=0.075). The institution’s neonatal LM infection incidence increased significantly in 2017 from a historical rate of 0.17/1 000 live births to 1.4/1 000 (p<0.001). During the current LM epidemic, the crude neonatal fatality rate exceeded the average calculated global epidemic neonatal LM mortality (3/12 (25.0%) v. 50/290 (17.2%); p=0.448). Possible factors contributing to the high mortality rate in this epidemic LM neonatal cohort may include more virulent disease associated with sequence type 6 and the predominance of early-onset disease. Conclusions. Epidemic neonatal listeriosis at Tygerberg Hospital was associated with a predominance of bacteraemic, early-onset disease. Listeriosis-associated mortality rates were higher than previously published, but lower than the rate in a historical institutional cohort.
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    Outcomes of extremely low-birthweight neonates at a tertiary hospital in the Western Cape, South Africa : a retrospective cohort study
    (Health & Medical Publishing Group, 2021-10) Mugyenzi, Grace Musiime; Lloyd, L. G.; McCaul, M.; Van Zyl, N.; Holgate, S. L.
    Background. Neonates of extremely low birthweight (ELBW; <1 000 g) have the highest neonatal mortality in South Africa (SA). Objective. To describe the morbidity and mortality of ELBW neonates treated at a tertiary hospital in SA. Methods. This was a retrospective cohort study including all live-born ELBW neonates treated at Tygerberg Hospital between 1 January and 31 December 2016. Data were extrapolated from a prospectively collected neonatal database and patient records. Multiple logistic regression and survival analysis were performed to identify risk factors of mortality. Results. The sample included 256 neonates. The following morbidities were recorded: respiratory distress syndrome (83.2%); bronchopulmonary dysplasia (8.2%); intraventricular haemorrhage (34.5%); periventricular leukomalacia (0.6%); necrotising enterocolitis (10.5%); and retinopathy of prematurity (31.2%). The survival-to-discharge rate was 63.3%. Cause of death was documented as extreme prematurity in 41% of the inpatient deaths. Birthweight was a significant predictor of mortality (hazard ratio 0.99; 95% confidence interval 0.992 - 0.999). Of the 162 neonates who survived until discharge, 11 died following discharge. Conclusion. Morbidity and mortality rates remain high among ELBW neonates. To improve survival, resources need to be allocated to neonatal resuscitation, surfactant therapy and increasing availability of intensive-care beds.