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Surgical intervention after medical treatment for early pregnancy loss according to gestational size
Ohad Gluck1,2, Elad Barber1,2, Ori Tal1,2
1Department of Obstetrics and Gynecology, E. Wolfson Medical Center, Holon, Israel.
Objective:
To study the rate of surgical intervention for unsuccessful medical treatment in early pregnancy loss (EPL), according to gestational size by ultrasound (GS-US).
Methods:
This was a retrospective cohort study. All women who were treated with misoprostol for EPL between July 2015 and December 2020 were included. The cohort was divided according to GS-US: group 1: gestational sac without an embryonic pole; group 2: an embryonic pole with crown-rump length (CRL) compatible with <7 weeks; group 3: CRL compatible with 7+0 -7+6 weeks; group 4: CRL compatible with 8+0 -8+6 weeks; group 5: CRL compatible with ≥9 weeks. We compared the rate of any surgical intervention due to treatment failure.
Results:
Overall, 783 patients were included: group 1, 236 (30.1%); group 2, 319 (40.7%); group 3, 115 (14.7%); group 4, 78 (10.0%); and group 5, 35 (5.0%) patients. The rate of any surgical intervention was significantly lower in groups 1-4 (54, 22.9%; 85, 26.6%; 28, 24.3%; and 22, 28.2%, respectively) compared with group 5 (17, 48.6%; P = 0.030). On multivariant analysis, GS-US greater than 9 weeks was independently associated with the need for surgical intervention (adjusted odds ratio 1.23, 95% confidence interval 1.01-1.51; P = 0.040).
Conclusion:
When treating EPL medically, GS-US greater than 9 weeks increases the risk of undergoing additional surgical intervention compared with younger weeks.
