Risk Factors for Haemorrhage during Suction Curettage after Uterine Artery Embolization for Treating Caesarean Scar Pregnancy: A Case-Control Study.
OBJECTIVE
To investigate the potential risk factors for haemorrhage during suction curettage after uterine artery embolization (UAE) in the treatment of caesarean scar pregnancy (CSP).


METHODS
A case-control study was executed including 35 patients with CSP and haemorrhage during suction curettage after UAE and 140 controls without haemorrhage. The data collected included gestational age, the distance between the gestational mass and the bladder, and the volume of vaginal bleeding.


RESULTS
Six patients with UAE needed blood transfusions and two had a hysterectomy, while no patient in the control group needed these interventions. Multivariate analysis showed that both gestational age and the distance between the gestational mass and the bladder were associated with haemorrhage in the CSP group. The odds ratio (OR) of gestational age between cases and controls was 1.579 (95% confidence interval [CI] 1.291-1.933), and the OR of the distance between the gestational mass and the bladder was 0.208 (95% CI 0.082-0.531).


CONCLUSIONS
Increased gestational age might be an important risk factor for haemorrhage during suction curettage after UAE in the treatment of patients with CSP, and a distance of >0.2 cm between the gestational mass and the bladder was protective against haemorrhage.
Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China.
Yong Jiang
YJ
Du
Xiao Hui
XH
Zhang
Li Quan
LQ
Wang
D000328:Adult; D016063:Blood Loss, Surgical; D016022:Case-Control Studies; D002585:Cesarean Section / Q000009:adverse effects*; D002921:Cicatrix / Q000150:complications*; D003475:Curettage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000601:surgery*; D012307:Risk Factors; D013396:Suction / Q000009:adverse effects; D055357:Uterine Artery Embolization / Q000379:methods*