title: Conization using the Shimodaira-Taniguchi procedure for adenocarcinoma in situ of the uterine cervix.
abstract: OBJECTIVE
  The Shimodaira-Taniguchi conization procedure addresses the disadvantages of the loop electrosurgical excision procedure (LEEP) by using a high frequency current and a triangular probe with a linear excision electrode to extract the tissue as a single informative specimen, without incurring accompanying thermal trauma. The aim of the present study was to analyze the surgical efficacy of the Shimodaira-Taniguchi conization procedure for adenocarcinoma in situ (AIS) of the uterine cervix.
  
  
  METHODS
  At the Osaka University Hospital, conization using the Shimodaira-Taniguchi procedure has long been routinely performed for AIS. Medical records of patients during the period from 2005 to 2011, whose post-conization diagnosis was AIS, were retrospectively analyzed. A literature review was conducted of the PubMed database to clarify the surgical outcome efficacy of the Shimodaira-Taniguchi procedure compared to other procedures.
  
  
  RESULTS
  During the study period, a post-conization diagnosis of AIS was made in 10 patients. A positive resection margin was detected in 4 of the 10 cases (40%), and residual disease was observed in 3 cases (30%). A review of the relevant literature indicates that the rate of positive margin and residual disease by the Shimodaira-Taniguchi procedure, including our cases, was not significantly different from the cold knife, LEEP or laser procedures (p=0.32, 0.99, and 0.40, respectively, for positive margin, and p=0.76, 0.94, and 0.063, respectively, for residual disease).
  
  
  CONCLUSIONS
  AIS was demonstrated to be efficaciously treated, with a low risk of residual disease, by the Shimodaira-Taniguchi conization procedure. Further study is still needed to establish a standard of conservative treatment for AIS.
authors: Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.
authors: Kosuke
authors: K
authors: Hiramatsu
authors: Yutaka
authors: Y
authors: Ueda
authors: Kiyoshi
authors: K
authors: Yoshino
authors: Masami
authors: M
authors: Fujita
authors: Eiichi
authors: E
authors: Morii
authors: Takayuki
authors: T
authors: Enomoto
authors: Tadashi
authors: T
authors: Kimura
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D000328:Adult; D001777:Blood Coagulation; D002584:Cervix Uteri / Q000473:pathology* / Q000601:surgery; D019092:Conization / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D005260:Female; D005500:Follow-Up Studies; D006785:Hospitals, University; D006801:Humans; D007044:Hysterectomy; D007564:Japan; D008499:Medical Records; D008875:Middle Aged; D059351:Organ Sparing Treatments; D012074:Remission Induction; D012086:Reoperation; D012189:Retrospective Studies; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D002578:Uterine Cervical Dysplasia / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery