S Hesselman1,2, U Högberg1, E-B Råssjö2, E Schytt2, M Löfgren3, M Jonsson1. 1. Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden. 2. Centre for Clinical Research Dalarna, Falun, Sweden. 3. Department of Obstetrics & Gynaecology, Umeå University Hospital, Umeå, Sweden.
Abstract
OBJECTIVE: The aim of the study was to evaluate the association between abdominal adhesions at the time of gynaecologic surgery and a history of caesarean delivery, and to investigate obstetric factors contributing to adhesion formation after caesarean section (CS). DESIGN: Longitudinal population-based register study. SETTING: Sweden. POPULATION: Women undergoing benign hysterectomy and/or adnexal surgery in Sweden, 2000-2014, with a previous delivery during 1973-2013 (n = 15 479). METHODS: Information about abdominal adhesions during gynaecological surgery, prior medical history, pregnancies and deliveries were retrieved from Swedish National Health and Quality registers. MAIN OUTCOME MEASURES: Adhesions. RESULTS: In women with previous CS, adhesions were present in 37%, compared with 10% of women with no previous CS [odds ratio (OR): 5.18, 95% confidence interval (CI): 4.70-5.71]. Adhesions increased with the number of caesarean sections: 32% after one CS; 42% after two CS and 59% after three or more CS (P < 0.001). Regardless of the number of CS, factors at CS such as age ≥35 years (aOR: 1.28, 95% CI: 1.05-1.55), body mass index (BMI) ≥30 [adjusted OR (aOR): 1.91, 95% CI: 1.49-2.45] and postpartum infection (aOR: 1.55, 95% CI: 1.05-2.30) increased the risk of adhesions. CONCLUSIONS: Presence of adhesions in abdominal gynaecological surgery is associated with women's personal history of caesarean delivery. The number of caesarean sections was the important predictor of adhesions; advanced age, obesity and postpartum infection further increased the incidence. TWEETABLE ABSTRACT: Repeat caesarean, age, obesity and infection increased the risk of pelvic adhesions after caesarean section.
OBJECTIVE: The aim of the study was to evaluate the association between abdominal adhesions at the time of gynaecologic surgery and a history of caesarean delivery, and to investigate obstetric factors contributing to adhesion formation after caesarean section (CS). DESIGN: Longitudinal population-based register study. SETTING: Sweden. POPULATION: Women undergoing benign hysterectomy and/or adnexal surgery in Sweden, 2000-2014, with a previous delivery during 1973-2013 (n = 15 479). METHODS: Information about abdominal adhesions during gynaecological surgery, prior medical history, pregnancies and deliveries were retrieved from Swedish National Health and Quality registers. MAIN OUTCOME MEASURES: Adhesions. RESULTS: In women with previous CS, adhesions were present in 37%, compared with 10% of women with no previous CS [odds ratio (OR): 5.18, 95% confidence interval (CI): 4.70-5.71]. Adhesions increased with the number of caesarean sections: 32% after one CS; 42% after two CS and 59% after three or more CS (P < 0.001). Regardless of the number of CS, factors at CS such as age ≥35 years (aOR: 1.28, 95% CI: 1.05-1.55), body mass index (BMI) ≥30 [adjusted OR (aOR): 1.91, 95% CI: 1.49-2.45] and postpartum infection (aOR: 1.55, 95% CI: 1.05-2.30) increased the risk of adhesions. CONCLUSIONS: Presence of adhesions in abdominal gynaecological surgery is associated with women's personal history of caesarean delivery. The number of caesarean sections was the important predictor of adhesions; advanced age, obesity and postpartum infection further increased the incidence. TWEETABLE ABSTRACT: Repeat caesarean, age, obesity and infection increased the risk of pelvic adhesions after caesarean section.