Assessment of antenatal and intrapartum referrals to Mowbray Maternity Hospital in Cape Town, South Africa
Master Thesis
2017
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University of Cape Town
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Introduction: A continuous and concerning increase in the number of deliveries at Mowbray Maternity Hospital (MMH) has been noted over the years and now comprises a greater proportion of deliveries compared to deliveries conducted by midwives at midwife obstetric units (MOUs). To date there have been no studies assessing the changes in the pattern of deliveries at MMH. This study describes the antenatal and intrapartum referrals at MMH in 2005 and 2013, to identify any changes and whether or not referrals are appropriate. Method: This is a descriptive study with an analytic component involving review of a sample of hospital folders (138 for 2005 and 246 for 2013) of women who delivered at MMH from January to December 2005 and 2013. Results: The mean age of referred women was 27.259 (SD ± 6.277) years and 27.326 (SD ± 6.025) years in 2005 and 2013, respectively, with no significant statistical difference (p = 0.918). There was also no significant statistical difference (p=0.056) in the proportion of coloured, black or white women who delivered at MMH during 2005 and 2013. In 2005, a total of 27 (52.2 %) delivered women were single, 54 (39.1%) were married and two (1.4%) were divorced. In 2013, a total of 178 (72.4%) women were single, 65 (26.4%) were married and three (1.2%) were divorced, with a significant statistical difference (p < 0.001). In 2005, 75 (54.3%) women were unemployed and 46 (33.3%) were employed, whereas in 2013, 172 (69.9%) women were unemployed and 69 (28%) were employed, which shows a significant statistical difference (p < 0.001). In 2005, women mostly resided in Mitchell's Plain (32.6%), Gugulethu (28.3%) or in Khayelitsha (27.5%). In 2013, most women resided in Mitchell's plain (33.7%), Gugulethu (24.4%), Retreat 48 (19.5%) and Southern Peninsula 31 (12.6%), which represents a significant statistical difference (p= 0.001). 2 The median parity for 2005 sample was 1 (IQR: from 0 to 2), while in 2013 it was 1 (IQR: from 0 to 1). Although most women (94.2% versus 95.1%) booked at antenatal clinics in 2005 and 2013 respectively, with no significant statistical difference (p=0.697), the gestational age at first ANC differed significantly (p < 0.001) (median 24 versus 19 weeks). In 2005, the median number of ANC visits was five (IQR: from 4 to 7) visits, whereas the median was six (IQR: from 5 to 8) visits in 2013, with a significant statistical difference (p= 0.013). Over half of referred women (55.8% and 50.8%) in 2005 and 2013 respectively were delivered by normal vaginal delivery. The remainder had either a caesarean section or assisted delivery, with no significant statistical difference (p=0.139). Most women were referred from MOUs in both 2005 and 2013, at 90.6% and 85.45% respectively, with a significant statistical difference (p < 0.001). During both years virtually all pregnancies were considered high risk and the most common reason for referral was previous caesarean section (18.8% versus 19.9% respectively). For both years most pregnancy referrals experienced one, or more, antenatal risk factors, mainly previous caesarean section at 31 (12.5%), obesity at 27 (11%), prelabour rupture of membranes at 26 (10.6%) and HIV at 24 (9.8%) in 2005 and previous caesarean section accounted for 56 (11.1%), prolonged pregnancy for 51 (10.1), obesity for 50 (9.9%), HIV for 50 (9.9%) and tobacco use for 42 (8.3%) in 2013. The difference was statistically significant (p < 0.001). In 2005, the main intrapartum risk factors were fetal distress (23.6%), failure to progress and preterm labour (18% each). In 2013, fetal distress was most common (36.2%), followed by failure to progress (16.7%). The difference is statistically significant (p=0.034). Conclusion: The Cape Town Metro West health system features a functional maternity referral system. Midwives perform well in referring pregnant women who meet the criteria for high risk. There has been an increase in the number of women referred to the MMH over the study period but in this study group all referrals were found to be appropriate and were compliant with relevant obstetric management protocols. It appears there have not been large shifts in the demographics of referred women over the period reviewed. In addition, the change in the referral pathway has seen Southern Peninsula and Retreat referring to MMH but Khayelitsha no longer referring there. Furthermore, there are emerging risk factors that reflect the epidemiological changes currently being observed in the Cape Town Metro West region.
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Mohamed, E. 2017. Assessment of antenatal and intrapartum referrals to Mowbray Maternity Hospital in Cape Town, South Africa. University of Cape Town.