The ProSeal™ Laryngeal Mask Airway and the Laryngeal Tube Suction™ for ventilation in gynaecological patients undergoing laparoscopic surgery *

Abstract

Both devices provide a secure airway even under conditions of elevated intra-abdominal pressure. In this pilot study, no differences concerning handling or quality of airway seal were detected between PLMA and LTS.

A Comparison of Seal in Seven Supraglottic Airway Devices Using a Cadaver Model of Elevated Esophageal Pressure

“…12 However, some studies have suggested that supraglottic airway devices may be safely used during laparoscopic surgery, despite the increased risk of aspiration due to elevated intraabdominal pressure (typically limited to 15 mm Hg). 13,14 Our study suggests that the Combitube provides better airway protection than the Classic LMA. Some clinical studies have not demonstrated this, 15 although studies in prehospital use suggest that the Combitube provides better protection against aspiration than the Classic LMA.…”

Supraglottic Devices in Laparoscopic Surgery - A Review of Literature

“…There are 9 randomized trials comparing PLMA with various other airway devices in laparoscopic gynaecological surgery. This includes comparison with ETT (4) and one each with SLMA, i-gel, LTS and Cobra PLA and one comparing PLMA, SLMA and i-gel [48][49][50][51][52][53][54][55]62]. The PLMA had equivalent functionality with ETT.…”

Tubo laríngeo com sucção descartável versus reutilizável para ventilação de pacientes submetidos à colecistectomia laparoscópica

“…Roth and colleagues compared PLMA and LTS for ventilation in gynecological patients. They concluded both devices provide a secure airway even under conditions of elevated intra-abdominal pressure 18 . Our study demonstrates that the LTS is a useful device for management of airway in laparoscopic cholecystectomy and the clinical performance of the disposable and the reusable LTS are similar with regard to oxygenation and ventilation.…”

“…Since the introduction of the supraglottic airway devices, few studies compared these different tools for airway management in laparoscopic procedures [16][17][18] . One study concluded that Proseal Laryngeal Mask Airway (PLMA) is a reasonable alternative to conventional tracheal tube for gynecological laparoscopy with same advantages 17 .…”

“…A significant increase in peak airway pressure after induction of capnoperitoneum when compared to baseline values was found in both groups (p = 0.001 for LTS-D, p = 0.002 for LTS-II group). In the study of Roth et al they allowed the sealing pressure to rise up to 50 cmH 2 O for sealing pressure measurement and they calculate the difference between airway leak pressure and peak airway pressure and found that it may be considered as a rough estimate of the safety margin of these devices 18 . We did not allow airway pressure rise to more than 35 cmH 2 O and therefore no air leak occurred in the majority of the cases, so we cannot comment for safety margin of these devices.…”