EP34.18: IOTA ADNEX as a tool for efficiency in the management of an oncological operating theatre: is there a real impact on a gynecology service?

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To know the impact of the introduction of IOTA ADNEX in the management of a gynecology operating room, discriminating preoperatively between ovarian tumours of high or low risk. The hypothesis is that by filtering adnexal tumours with surgical indication, the false negative rates decrease optimally. Retrospective study from March 2017-March 2019 in a gynecological ultrasound unit specific reference centre in oncological gynecology. All patients referred for adnexal tumour were analysed: suspicious of malignancy or benign (with indication of surgery). The examinations were carried out by an IOTA certified sonographer. The tumours were classified as low or high risk of malignancy by the IOTA ADNEX from a result higher than 20%. 274 women were included in the study period. 60% (166) were classified as low risk tumours, 40% (108) high risk. Of benign tumours, 87 undergone surgery: 97% (84) had a deferred diagnosis of benign. In 3% (3) intraoperative study was requested (the presence of high colour Doppler score), resulting malignant. High-risk tumours were confirmed in 68% (72) of the cases, 33 (31%) were benign. Considering IOTA ADNEX as an management tool, decided: those tumours suspected of malignancy subsidiary of primary debulking, schedule them preferred route in an operating room from Oncological Gynaecology, reserving a patient conditional to surgery in the event that the pathological study was benign; tumours of low risk, are scheduled in general gynecology theater with deferred pathological study. If any anomalous data is associated, an intraoperative study is requested and the possibility of a reference oncologist surgeon is foreseen. There is a low rate of false negative results in our centre: 3 cases of intraoperative malignancy. IOTA ADNEX in our service has meant a revolution in surgical organisation; it ensures the presence of gynecological oncologists where malignancy is suspected, availability in those that request intraoperative study and it decreases false positives and negatives to acceptable limits. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.