Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology · 2026
miR-145-5p in predicting caesarean section postoperative complications in scarred uterus cases: a prospective cohort study.
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Zhao Minjie, Yang Xiaoyu, Zhang Heding, Hu Wenjing, Wang Xiaojuan, Xing Huimin, An Peng
Аннотация
BACKGROUND: To investigate whether serum micro (miR)-145-5p for postoperative complications in patients with scarred uterus undergoing caesarean section, suggesting its potential as an adjunctive molecular biomarker for clinical preoperative risk assessment.
METHODS: A total of 198 women were divided into high-expression and low-expression groups based on the mean relative serum miR-145-5p level. Pelvic floor function, vaginal microecology, and abdominal adhesion status were assessed, and postoperative complications were monitored. Spearman's rank correlation was used to analyse the correlation between miR-145-5p expression and scar scores, while Receiver operating characteristic (ROC) curves were employed to evaluate its predictive efficacy for complications.
RESULTS: Serum miR-145-5p was negatively correlated with abdominal scar Patient-Observation Scar Assessment Scale (POSAS) scores. The level of miR-145-5p was lower in the moderate-to-severe pelvic floor dysfunction (PFD) group, vaginal microecological disorder group, abdominal adhesion group, and postoperative complication group compared with the corresponding control groups. ROC curve analysis showed that miR-145-5p had good predictive value for these complications.
CONCLUSIONS: miR-145-5p is closely correlated with abdominal scar, PFD, vaginal microecological disorders, abdominal adhesions, and other postoperative complications in patients with scarred uterus after caesarean section, which may serve as a potential molecular biomarker for preoperative risk assessment.
METHODS: A total of 198 women were divided into high-expression and low-expression groups based on the mean relative serum miR-145-5p level. Pelvic floor function, vaginal microecology, and abdominal adhesion status were assessed, and postoperative complications were monitored. Spearman's rank correlation was used to analyse the correlation between miR-145-5p expression and scar scores, while Receiver operating characteristic (ROC) curves were employed to evaluate its predictive efficacy for complications.
RESULTS: Serum miR-145-5p was negatively correlated with abdominal scar Patient-Observation Scar Assessment Scale (POSAS) scores. The level of miR-145-5p was lower in the moderate-to-severe pelvic floor dysfunction (PFD) group, vaginal microecological disorder group, abdominal adhesion group, and postoperative complication group compared with the corresponding control groups. ROC curve analysis showed that miR-145-5p had good predictive value for these complications.
CONCLUSIONS: miR-145-5p is closely correlated with abdominal scar, PFD, vaginal microecological disorders, abdominal adhesions, and other postoperative complications in patients with scarred uterus after caesarean section, which may serve as a potential molecular biomarker for preoperative risk assessment.