Ye Q, Wu D, Fang W, Wong GTC, Lu Y. BMC Anesthesiol. 2020;20(1):136. Published 2020 Jun 3.
This randomised observational study set out to evaluate and compare the antral cross-sectional area (CSA) in patients undergoing laparoscopic gynaecological surgery when managed with different supraglottic airway devices (SAD). One hundred ASA I and II female patients were assessed for the study enrolment and subsequently randomly allocated into three groups of different ventilation devices, which included LMA-Supreme (Group S), I-gel (Group I) or tracheal tube (Group T). Several parameters were measured including antral cross-sectional area (primary outcome), haemodynamic parameters and postoperative morbidity such as sore throat, hoarseness, dry throat, nausea and vomiting (secondary outcomes). Findings have demonstrated that the antral CSA was not significantly different among three groups before induction after induction and at the end of surgery. On the other hand, the haemodynamic variables were significantly higher in the tracheal tube group than in the LMA-Supreme and I-gel groups after insertion and after removal. Interestingly, sore throat was detected in none in the I-gel group compare to two patients in the LMA-Supreme group and fifteen patients in the tracheal tube group. Moreover, hoarseness was detected in one in the I-gel group, whereas two patients in the LMA-Supreme group and eleven patients in the tracheal tube group suffered from this postoperative adverse event.
Conclusions: The SADs do not cause obvious gastric insufflation. Thus, LMA-Supreme and I-gel can be widely used as alternative to endotracheal intubation for the short laparoscopic gynaecological surgery.
Link to abstract