Peripartum hysterectomy in a Nigerian university hospital: An assessment of severe maternal outcomes with the maternal severity index model

Background: Peripartum hysterectomy is life-saving and a life-threatening criterion of the World Health Organization (WHO) maternal near-miss concept. The maternal severity index (MSI) model was developed to assess the outcome of severe maternal morbidities. This study assessed severe maternal outcomes of peripartum hysterectomy using the MSI model and related maternal severity score with mortality. Subjects and Methods: Records of women with peripartum hysterectomy over a 20-year period were retrieved and the documented WHO life-threatening conditions (severity markers) extracted. Severity markers were related with booking status, the level of specialist care and mortality. Comparison of dichotomous variables was done with Mantel-Haenszel statistics, and with one-tailed Fisher's exact test when the variable was