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Hum. Reprod. Advance Access originally published online on July 10, 2008
Human Reproduction 2008 23(10):2220-2226; doi:10.1093/humrep/den256
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© The Author 2008. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Effect of simultaneous morcellation in situ on operative time during laparoscopic myomectomy

Pao-Ling Torng1, Jing-Shiang Hwang2,3, Su-Cheng Huang1,3, Wen-Chun Chang1, Szu-Yu Chen1, Daw-Yuan Chang1 and Wen-Chiung Hsu1

1 Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan 2 Institute of Statistical Science, Academia Sinica, Taipei, Taiwan

3 Correspondence address. Tel: +886-2-27835611 ext. 417; Fax: +886-2-27831523; E-mail: hwang{at}sinica.edu.tw(J.-S.H.)/Tel: +886-2-23123456 ext. 7039; Fax: +886-2-23826649; E-mail: pltorng{at}ntu.edu.tw(S.-C.H.)

BACKGROUND: Laparoscopic myomectomy (LM) is technically difficult and time consuming procedure that requires surgical skill and modifications. The aim of this study was to assess factors which affect operative times in LM.

METHODS: From March 2003 to June 2007, 174 women, who underwent LM for symptomatic myomas, were enrolled. Standard LM was performed in the first 4 years and simultaneous morcellation in situ (SMI) method was applied in the fifth year.

RESULTS: The mean myoma weight was 213.5 ± 190.4 g and the mean operative time was 117.0 ± 39.6 min. No laparoconversions occurred and there was a 2.3% rate of complications. Total myoma weight increased and operative time declined significantly over time. The surgeon's learning curve and the effect of SMI on operative time were identified by establishing a nonlinear multiple regression model. Model assumptions showed little violation by residual plots. Slopes of the average myoma weight (total myoma weight/number of myoma operated) for describing the operative time declined along with the study year, suggesting that operative experience is a major factor influencing operative time. SMI showed a further 19 min reduction in the predicted operative time.

CONCLUSIONS: Operative time in LM is dependent on a multitude of factors including surgical experience. Applying SMI during LM is an efficient way to further reduce operative time.

Key words: laparoscopic myomectomy/operative time/learning curve/modified procedure/nonlinear regression models


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