title: Hysteroscopic septal resection using unipolar resectoscope versus bipolar resectoscope: Prospective, randomized study.
abstract: OBJECTIVE
  To compare the operation and reproductive outcome of hysteroscopic septal resection using unipolar resectoscope verses bipolar resectoscope.
  
  
  METHODS
  In this prospective randomized study, 70 women underwent hysteroscopic septal resection using either unipolar resectoscope or bipolar resectoscope. Intraoperative parameters (operation time, fluid deficit and complications) and pre- and postoperative serum sodium levels were compared between the two groups. A second-look hysteroscopy was performed after 6 weeks. All pregnancies occurring during the follow-up period were recorded.
  
  
  RESULTS
  There was no statistically significant difference between the two groups in terms of operation parameters and second-look hysteroscopy findings. Six patients in the unipolar group were found to have hyponatremia in the postoperative period compared to none in the bipolar group (P = 0.025). Regarding reproductive outcome, the difference between the two groups was not significant.
  
  
  CONCLUSIONS
  The use of bipolar resectoscope is associated with lesser risk of hyponatremia compared to unipolar resectoscope. Bipolar resectoscopy is a safe alternative to unipolar resectoscopy with similar reproductive outcome.
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Kallol Kumar
authors.initials: KK
authors.lastname: Roy
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Yamini
authors.initials: Y
authors.lastname: Kansal
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Murali
authors.initials: M
authors.lastname: Subbaiah
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Sunesh
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Jai Bhagwan
authors.initials: JB
authors.lastname: Sharma
authors.affiliation: Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Neeta
authors.initials: N
authors.lastname: Singh
mesh_terms: D000026:Abortion, Habitual / Q000209:etiology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007010:Hyponatremia / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D015907:Hysteroscopy / Q000009:adverse effects / Q000295:instrumentation*; D007194:India / Q000453:epidemiology; D007247:Infertility, Female / Q000209:etiology / Q000517:prevention & control*; D007752:Obstetric Labor, Premature / Q000209:etiology / Q000517:prevention & control*; D061646:Operative Time; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D011247:Pregnancy; D018873:Pregnancy Rate; D012306:Risk; D062606:Tertiary Care Centers; D014599:Uterus / Q000002:abnormalities* / Q000503:physiopathology / Q000601:surgery
keywords: bipolar; reproductive outcome; resectoscope; septal resection; unipolar