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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A descriptive study of suspected perinatal asphyxia at Mitchells Plain District Hospital. A case series

Stofberg, Johannes Petrus Jordaan 16 March 2022 (has links)
Background: South Africa aims to end all preventable deaths of children under the age of five as part of their commitment to the Sustainable Development Goals. More than half of these mortalities occur in the neonatal period with perinatal asphyxia as one of the leading causes. This study investigated and identified the characteristics of perinatal asphyxia and its contributing factors at a district hospital in Cape Town. Methods: A retrospective descriptive case series was performed and included all suspected cases of perinatal asphyxia referred from Mitchells Plain District Hospital (MPH)) to a specialised centre in the years 2016-2018. A data collection tool was used to extract information. Data was processed with SPSS to produce descriptive statistics and to investigate associations between variables using the Chi-square tests. Results: The study included 29 cases of suspected perinatal asphyxia. Ten (34.5%) had abnormal amplitude Electroencephalograms (aEEG's) indicative of Hypoxic Ischaemic Encephalopathy (HIE) and four (13.8%) demised before day seven of life. Non-operative deliveries (p=0.005), lack of a doctor at the time of delivery (p=0.004) and neonatal chest compressions (p=0.044) were associated with abnormal aEEG's. Babies with Thompson score of equal to or more than 12 (p=0.006), neonatal seizures (p=0.036) and delayed arrival at referral hospital (p=0.005) were associated with abnormal aEEG findings. Mortality was associated with Thompson score ≥12 (p=0.007) and the need for neonatal intubation at delivery (p=0.016). Conclusions: Significant reversable factors were identified in the peri-and postpartum periods. More capacitated staff would have the greatest impact on outcomes. The profile of HIE is exceedingly complex and challenges the resources and services of district level of care. Therefore, these factors should be targeted for future development and investment to improve outcomes from district hospitals.
2

Ethical issues in the use of magnetic resonance imaging of the brain in newborn infants with hypoxic-ischaemic encephalopathy : neuroimaging and decision-making for brain injured newborns

Wilkinson, Dominic James Clifford January 2010 (has links)
Infants with hypoxic-ischaemic encephalopathy (birth asphyxia) have a high risk of death or disability. Those with poor prognosis are sometimes allowed to die after withdrawal of intensive care. In recent years, doctors have used new types of brain scan, magnetic resonance imaging (MRI), to predict the type and severity of impairment if the infant survives and to help with such decisions. In this thesis, I analyse the issues arising from the use of MRI for prognostication and decision-making in newborn infants. I argue that previous prognostic research has been hampered by a failure to identify and focus on the most important practical question and that this contributes to uncertainty in practice. I outline recommendations for improving research. I then look at existing guidelines about withdrawal of life-sustaining treatment. I identify several problems with these guidelines; they are vague and fail to provide practical guidance, they provide little or no genuine scope for parental involvement in decisions, and they give no weight to the interests of others. I argue that parental interests should be given some weight in decisions for newborn infants. I develop a new model of decision-making that, using the concept of a Restricted Life, attempts to set out clearly the boundaries of parental discretion in decision-making. I argue that where infants are predicted to have severe cognitive or very severe physical impairment parents should be permitted to request either withdrawal or continuation of treatment. I justify this model on the basis of overlapping interests, (prognostic, experiential and moral) uncertainty, asymmetrical harms, and the burden of care. In the conclusion, I set out a guideline for the use of MRI in newborn infants with hypoxic-ischaemic encephalopathy. I suggest that this guideline would provide a more robust, coherent and practical basis for decision-making in newborn intensive care.

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