IMR Press / CEOG / Volume 47 / Issue 3 / DOI: 10.31083/j.ceog.2020.03.5264
Open Access Case Report
Vibration-related ovarian torsion in a patient undergoing in vitro fertilization: A case report
T.N. Yu1,2,†Y.L. Liu3,†Y.X. Lee1C.R. Tzeng4C.H. Chen2,4,*
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1 Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
2 Division of Reproductive Medicine, Department of Obstetrics and Gynecology, Taipei, Taiwan
3 Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
4 Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
*Correspondence: (CHIHUANG CHEN)
Contributed equally.
Clin. Exp. Obstet. Gynecol. 2020, 47(3), 415–418;
Submitted: 15 May 2019 | Accepted: 15 July 2019 | Published: 15 June 2020
Copyright: © 2020 Yu et al. Published by IMR press.
This is an open access article under the CC BY 4.0 license

Objective: Ovarian torsion, an uncommon cause of acute abdomen, represents a gynecologic surgical emergency. The incidence of ovarian torsion is high in patients receiving ovarian hyperstimulation due to enlarged ovaries, and ovarian hyperstimulation syndrome (OHSS) also facilitates the occurrence of ovarian torsion. Furthermore, intense exercise and body movement may increase the risk of ovarian torsion. Case Report: Herein, the case of a patient with ovarian torsion after ovarian hyperstimulation is reported here. This ovarian torsion may have been related to the vibration caused when she rode a motorcycle for an entire day on her holiday, 3 days after transvaginal oocyte retrieval. Conclusion: Ovarian torsion is a rare but severe complication in patients receiving assisted reproductive technology (ART), and emergent surgery with conservative treatment is recommended for final diagnosis and management. Exercise and vibration, which may increase the risk of torsion, should be considered as a risk factor for ovarian torsion, particularly in patients receiving ovarian hyperstimulation.

Artificial reproductive technology
Ovarian hyperstimulation syndrome
Ovarian torsion
ROC, MOST 106-2314-B-016-004/Ministry of Science and Technology, Taiwan
ROC, MOST 107-2314-B-016-065-MY2/Ministry of Science and Technology, Taiwan
TSGH-C106-081/Tri-Service General Hospital
>TSGH-C107-082/Tri-Service General Hospital
TSGH-C108-116/Tri-Service General Hospital
TSGH-PH-105-4/Tri-Service General Hospital, Penghu Branch
Figure 1.
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