Jessica Tompsett1, Mathew Leonardi2, Bassem Gerges3, Chuan Lu4, Shannon Reid3, Mercedes Espada2, George Condous5. 1. Acute Gynaecology, Early Pregnancy and Advanced Endoscopy Surgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, New South Wales, Australia (Drs. Tompsett, Leonardi, Gerges, and Espada). Electronic address: jtom8588@uni.sydney.edu.au. 2. Acute Gynaecology, Early Pregnancy and Advanced Endoscopy Surgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, New South Wales, Australia (Drs. Tompsett, Leonardi, Gerges, and Espada). 3. Department of Obstetrics and Gynaecology Wollongong Hospital, Wollongong, New South Wales, Australia (Dr. Reid). 4. Department of Computer Sciences, Aberystwyth University, Wales, United Kingdom (Dr. Lu). 5. Acute Gynaecology, Early Pregnancy and Advanced Endoscopy Surgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, New South Wales, Australia (Drs. Tompsett, Leonardi, Gerges, and Espada); OMNI Gynaecological Care, Sydney, Australia (Dr. Condous).
Abstract
STUDY OBJECTIVE: To validate the preoperative ultrasound-based endometriosis staging system (UBESS) for predicting the correct Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG) and Australasian Gynaecological Endoscopy and Surgery (AGES) Society's level of laparoscopic skill required for endometriosis surgery. DESIGN: Multi-center retrospective cohort study (Canadian Task Force classification II-2). SETTING: Tertiary teaching hospital and a private gynecologic clinic. PATIENTS: 155 women presenting with chronic pelvic pain and/or a history of endometriosis. INTERVENTIONS: Women underwent detailed specialized transvaginal ultrasound (TVS) in a tertiary referral unit to diagnose and stage endometriosis using the 3 stages of the UBESS. The UBESS was correlated to RANZCOG/AGES laparoscopic skill levels. The UBESS classifications were correlated as follows: UBESS I to predict RANZCOG/AGES surgical skill level 1/2, UBESS II to predict RANZCOG/AGES skill level ¾, and UBESS III to predict RANZCOG/AGES skill level 6. MAIN RESULTS: The accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios of the UBESS I to predict the RANZCOG/AGES surgical skill levels 1/2 were 99.4%, 98.9%, 100%, 100%, 98.5%, not applicable, and .011; those of UBESS II to predict surgical skill levels 3/4 were: 98.1%, 96.8%, 98.4%, 93.8%, 99.2%, 60 and .033, respectively, and those for UBESS III to predict surgical skill level 6 were: 98.7%, 97.2%, 99.2%, 97.2%, 99.2%, 115.7, and 0.028, respectively. The rate of correctly predicting the exact level of skills needed was 98.1%, and Cohen's kappa statistic for the agreement between UBESS prediction and levels of training required at surgery was 0.97, indicating almost perfect agreement. CONCLUSIONS: The UBESS can be used to predict the level of complexity of laparoscopic surgery for endometriosis based on the RANZCOG/AGES skills levels for laparoscopy. It now awaits external validation in multiple centers with various surgical skill level classification systems to assess its general applicability. Crown
STUDY OBJECTIVE: To validate the preoperative ultrasound-based endometriosis staging system (UBESS) for predicting the correct Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG) and Australasian Gynaecological Endoscopy and Surgery (AGES) Society's level of laparoscopic skill required for endometriosis surgery. DESIGN: Multi-center retrospective cohort study (Canadian Task Force classification II-2). SETTING: Tertiary teaching hospital and a private gynecologic clinic. PATIENTS: 155 women presenting with chronic pelvic pain and/or a history of endometriosis. INTERVENTIONS:Women underwent detailed specialized transvaginal ultrasound (TVS) in a tertiary referral unit to diagnose and stage endometriosis using the 3 stages of the UBESS. The UBESS was correlated to RANZCOG/AGES laparoscopic skill levels. The UBESS classifications were correlated as follows: UBESS I to predict RANZCOG/AGES surgical skill level 1/2, UBESS II to predict RANZCOG/AGES skill level ¾, and UBESS III to predict RANZCOG/AGES skill level 6. MAIN RESULTS: The accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios of the UBESS I to predict the RANZCOG/AGES surgical skill levels 1/2 were 99.4%, 98.9%, 100%, 100%, 98.5%, not applicable, and .011; those of UBESS II to predict surgical skill levels 3/4 were: 98.1%, 96.8%, 98.4%, 93.8%, 99.2%, 60 and .033, respectively, and those for UBESS III to predict surgical skill level 6 were: 98.7%, 97.2%, 99.2%, 97.2%, 99.2%, 115.7, and 0.028, respectively. The rate of correctly predicting the exact level of skills needed was 98.1%, and Cohen's kappa statistic for the agreement between UBESS prediction and levels of training required at surgery was 0.97, indicating almost perfect agreement. CONCLUSIONS: The UBESS can be used to predict the level of complexity of laparoscopic surgery for endometriosis based on the RANZCOG/AGES skills levels for laparoscopy. It now awaits external validation in multiple centers with various surgical skill level classification systems to assess its general applicability. Crown
Authors: Nathalie Vermeulen; Mauricio S Abrao; Jon I Einarsson; Andrew W Horne; Neil P Johnson; Ted T M Lee; Stacey Missmer; John Petrozza; Carla Tomassetti; Krina T Zondervan; Grigoris Grimbizis; Rudy Leon De Wilde Journal: Hum Reprod Open Date: 2021-10-22
Authors: N Vermeulen; M S Abrao; J I Einarsson; A W Horne; N P Johnson; T T M Lee; S Missmer; J Petrozza; C Tomassetti; K T Zondervan; G Grimbizis; R L De Wilde Journal: Facts Views Vis Obgyn Date: 2021-12