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  • Title: Epidemiology of pre-eclampsia and eclampsia at the KK Women's and Children's Hospital, Singapore.
    Author: Tan KH, Kwek K, Yeo GS.
    Journal: Singapore Med J; 2006 Jan; 47(1):48-53. PubMed ID: 16397721.
    Abstract:
    INTRODUCTION: The incidences and characteristics of pre-eclampsia (PE) and eclampsia in KK Women's and Children's Hospital (KKH), a tertiary obstetrical referral centre in Singapore, were studied. METHODS: The incidences and types of PE between July 1999 and June 2003 were derived from the pregnancy disease databases. The characteristics of women with PE in relation to the general obstetric population were analysed on the age, race, parity, types of delivery, gestation at delivery and mortality. Case records of eclampsia were analysed. RESULTS: A total of 2,213 (3.6 percent) out of 61,595 deliveries were complicated by PE between July 1999 and June 2003. Incidence rates for mild or unspecified PE, severe PE, eclampsia and PE superimposed on hypertension were 2.47 percent (1,518), 0.97 percent (599), 0.02 percent (10) and 0.14 percent (85), respectively. The incidence increased with multiple pregnancies: from 3.5 percent in singletons to 7.5 percent in twins, 19.4 percent in triplets and 25.0 percent in quadruplets. The Caesarean section rate for PE was 46.1 percent compared with 23.7 percent in the hospital population. The proportion of premature birth (<37 weeks) in PE was 31.0 percent and that of severe prematurity (<32 weeks) was 5.7 percent, while hospital population proportions were 9.8 percent and 1.3 percent, respectively. The perinatal mortality rate (PMR) of PE was 11.0/1,000 births (population PMR was 4.4/1,000 births). There were only ten cases of eclampsia out of 61,595 deliveries (1:6160) giving an incidence of eclampsia of 16.2/100,000 deliveries. There was no stillbirth, neonatal and maternal death among the eclamptic patients. CONCLUSION: The incidence and outcome of eclampsia in KKH showed a significant reduction over the years due to improved obstetrical care. While PE is still common, eclampsia is now a very rare disease outcome.
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