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Gynecol Minim Invasive Ther. 2019 Oct 24;8(4):155-159. doi: 10.4103/GMIT.GMIT_3_19. eCollection 2019 Oct-Dec.

Comparison between Laparoendoscopic Single-Site and Conventional Laparoscopic Surgery in Mature Cystic Teratoma of the Ovary.

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Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.



The objective of the study is to compare the intra- and post-operative outcomes of laparoendoscopic single-site surgery (LESS) and conventional laparoscopic surgery (CLS) in mature cystic teratoma (MCT) of the ovary.


We reviewed 254 patients who underwent surgery (cystectomy) for ovarian MCT from March 1, 2014, to August 31, 2016. During the study period, 216 patients underwent LESS and 38 patients underwent CLS. The outcome measures included operation time, estimated blood loss, changing hemoglobin (Hb) level, postoperative pain, and complications. Statistical analysis was performed using SPSS 24.


There was no statistically significant difference in age, body mass index, sexual experience, cyst size, operative time, adhesiolysis, preoperative Hb, Hb changes, postoperative pain scores (visual analog scale), hospital days, and complications between the two groups. In emergent situation, the frequency of CLS was high as three cases (7.9%) versus one case (0.5%, P = 0.007) with LESS. As the year progressed, the frequency of LESS increased. There were one case of re-operation for bleeding control and transfusion, one case of postoperative peritonitis and transfusion, and one case of postoperative transfusion in LESS. During LESS, additional port(s) was/were created in 13 cases (6.0%, P = 0.249).


LESS is not inferior to CLS in MCT surgery, and LESS is useful for the surgery of MCT. Our study demonstrates that LESS confers feasibility, convenience, and safety regarding cystectomy of MCT.


Cystectomy; LESS; SPA; laparoscopic single site surgery; mature cystic teratoma; single port access

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