Comparison of simple uterine manipulator-injector (SUMI) with the Cohen cannula in gynecologic laparoscopy

Abstract Objective To assess the effectiveness and safety of using simple uterine manipulator injector (SUMI) compared to Cohen cannula in laparoscopy. Design A Pilot randomized trial, incorporating 40 patients randomized into Group I or SUMI ( n  = 22) and Group II or Cohen cannula ( n  = 18). Setting Ain Shams Maternity Hospital, Cairo, Egypt. Material and methods Forty patients with infertility planned to undergo laparoscopy. The assigned uterine cannula was applied according to defined rules, followed by laparoscopy. Main outcome measures were application and removal time, uterine maneuverability in sagittal and coronal planes, easiness of insertion and manipulation, dye injection and its leakage, abandonment of the use of cannula, and adverse effect or complication. Results Application time was longer with SUMI (3.8 ± 1.3 vs. 1.3 ± 1.1 min, P P P P Conclusion Although SUMI takes longer to insert, the ease of its use is comparable with the Cohen cannula. A major advantage of its use is increased range of uterine maneuverability with better surgical field exposure.