Missed opportunity for aspirin prophylaxis for preeclampsia prevention: a cross-sectional study from Sub-Saharan Africa

Abstract

BackgroundRecent studies show that aspirin for pre-eclampsia prevention is underutilized despite it's effectiveness in preventing pre-eclampsia in patients with moderate and high risk factors. Little is known about this issue in the Sub-Saharan setting, including Ethiopia. ObjectiveTo determine the missed opportunity for ASA prophylaxis among candidates for this preeclampsia preventive intervention at a national tertiary referral hospital in Ethiopia. Study DesignThis was a cross-sectional study on pregnant women complicated by preeclampsia who were managed at St. Paul's Hospital Millennium Medical College (Ethiopia) over 6 months (April 1, 2023-September 30, 2023). Data were collected prospectively using a structured questionnaire. The primary outcome was proportion of women who had an indication for ASA prophylaxis for preeclampsia prevention but were not given the opportunity (missed opportunity for ASA) among all pregnant preeclampsia patients presenting to our hospital. Secondary outcomes were adverse maternal and perinatal outcomes. An intention-to-treat (ITT) analysis was used. Data were analyzed using SPSS version 23. Descriptive statistics were employed to analyze the data. Proportions and percentages were used to present the results. ResultsA total of 427 pregnant women with preeclampsia were screened for inclusion and 32 of them were excluded according to the inclusion and exclusion criteria. Among the 395 preeclamptic pregnant women included in the final analysis, 195(50.6%) had an indication for ASA prophylaxis for the prevention of preeclampsia. The mean systolic and diastolic blood pressures at presentation were 153.8(±12.8) and 100.6(±8.5) mm Hg, respectively. Most patients had proteinuria (51.7% had urine dip-stick protein +2 while another 18.5% (74/395) had urine dip-stick protein +1 and 10.9% had 24-hour urine protein in the pre-eclampsia range). Among these women who had indication for ASA prophylaxis, in only 1.1 % was ASA utilized (the missed opportunity for ASA prophylaxis for preeclampsia prevention was 98.9%). The perinatal morality rate was 11.9 % while neonatal ICU admission rate was 20.5%. The 5th minute low Apgar score rate was 8.9% Eight mothers (2.1%) were complicated by HELLP syndrome while another 3(0.8%) mothers developed pulmonary edema. ConclusionIn this study, the missed opportunity for administration of ASA prophylaxis for the prevention of preeclampsia was unacceptably high though more than half of the study subjects were candidates for this preventive intervention. Preeclampsia was also associated with higher rates adverse perinatal outcomes and serious maternal morbidity.