Clinical Study of Perinatal Hysterectomy Between 2000-2011 in the Clinic of Obstetrics, Gynecological Diseases and Oncological Gynecology in Bydgoszcz

Abstract

Introduction: Perinatal hysterectomy (PH) is usually a life-saving procedure, which is performed after all conservative treatment options fail. The PH frequency rate ranges from 0.04 to 0.23%. The most frequent indications for this procedure include: abnormal placental implantation, placenta previa, uterine rupture and uterine atony. Objective. Clinical study of perinatal hysterectomy cases taking into consideration the frequency, indications, complications and risk factors related to this procedure. Materials and methods: The study included 16 women who underwent perinatal hysterectomy at the Department and Clinic of Obstetrics and Gynecological Diseases between 2000-2011. The following data were collected from medical records: course of pregnancy, labor and puerperium. The profile of the study group was conducted in terms of: maternal age, parity, gestation length, history of caesarean sections and gynecological operations. The following factors were studied: the termination of pregnancy, indications for caesarean section, hysterectomy-related complications and indications, neonatal birth weight and Apgar score. The statistical analysis was performed using Statistica 9.1 by StatSoft. Data are expressed as the arithmetic mean and standard deviation (SD). Results: Sixteen perinatal hysterectomy procedures were performed, accounting for 0.066% of the overall number of labors. Average maternal age and pregnancy length were 31.6 years [SD+/-6.3] and 36.1 weeks of gestation [SD+/-3.4], respectively. PH was more frequently performed among multiparous women (81.25%) and after caesarean sections (87.5%). Fetal asphyxia was the most frequent indication for caesarean section (35.7%). Fourteen percent of all indications accounted for the lack of consent from a pregnant woman to make an attempt at spontaneous vaginal delivery after previous c-section. Fifty percent of the women from the study group had a previous caesarean section, whereas 25% had more than one prior c-section. Between 2009-2011, as compared to previous years, the highest percentage of hysterectomies (80%) was reported in pregnant women after a previous caesarean section. The most frequent indication for hysterectomy included abnormal placental implantation (43.75%) diagnosed more often in patients with a history of caesarean section (57%). Among PH complications, a hemorrhagic shock was reported in 37.4% and bladder injury in 18.7% of the women. Every patient required a transfusion of erythrocyte concentrate, 4.7 units [SD+/-3.5] on average. Twenty-five percent of the neonates were born in poor condition with an Apgar score of 1-3. In case of all women, the therapy required cooperation of different specialists including obstetricians, anesthesiologists, urologists, surgeons and general practitioners. Conclusions: 1. Current and previous caesarean section constitutes a risk factor for perinatal hysterectomy. 2. Placental pathology is the most frequent indication for perinatal hysterectomy. 3. The growing number of caesarean sections should encourage obstetricians to conduct a more careful analysis of indications.