The effect of the onset of labor on the characteristics of the cesarean scar
| Autor: | Ammar Al Naimi, Niki Mouzakiti, Franz Bahlmann, Lukas Jennewein, Frank Louwen |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Wilcoxon signed-rank test medicine.medical_treatment Scars 03 medical and health sciences Cicatrix 0302 clinical medicine Pregnancy Linear regression medicine Humans 030212 general & internal medicine Hysterotomy ddc:610 Prospective Studies Ultrasonography 030219 obstetrics & reproductive medicine Obstetrics business.industry Cesarean Section Uterus Obstetrics and Gynecology General Medicine Confidence interval Linear relationship Female medicine.symptom Cervical dilatation business Cohort study |
| Zdroj: | International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and ObstetricsREFERENCES. 157(2) |
| ISSN: | 1879-3479 |
| Popis: | Objective: To assess the effect of cesarean section (CS) timing, elective versus unplanned, on the residual myometrial thickness (RMT) and CS scars. Methods: This is a prospective single-blinded observational cohort study with 186 observations. Patients indicated to undergo first singleton CS were preoperatively recruited. Exclusion criteria were history of repeated CS, vertical hysterotomy, diabetes, and additional uterine surgeries. Sonographic examination was performed for assessing the RMT ratio, the presence of a niche, fibrosis, and the distance from the scar to the internal os (SO) 1 year after CS. Power analysis was performed with 0.05 α, 0.1 β, and all statistical analyses were conducted with Stata®. Results: Wilcoxon rank-sum test for the association between CS timing, RMT ratio and SO showed Z values of −0.59 and −4.94 (P = 0.553 and P < 0.001), respectively. There was no association between CS timing and niches and fibrosis (P > 0.99 and P = 0.268, respectively). Linear regression between SO and the extent of cervical dilatation showed a −0.45 β (95% confidence interval −0.68 to −0.21) and a 10.22-mm intercept (P < 0.001). Conclusion: RMT is independent of the timing of CS, but the SO distance shows a negative linear relationship with the cervical dilatation. |
| Databáze: | OpenAIRE |
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