A Randomized Controlled Trial Comparing the ProSeal™  Laryngeal Mask Airway with the Laryngeal Tube Suction in Mechanically Ventilated Patients

Abstract

With respect to both physiologic and clinical function, the PLMA and LTS are similar and either device can be used to establish a safe and effective airway in mechanically ventilated anesthetized adult patients.

The proseal™laryngeal mask airway: a review of the literature

“…One study and three abstracts compare LTS and PLMA in 266 patients. 40,45,46,50 Performance of the two devices was equivalent in three studies. Airway seal pressure did not vary between devices but varied between studies from 27 cm H 2 O 45 to 47 cm H 2 O.…”

“…1,3,4,7,[10][11][12]14,15,17,20, First time insertion success, reported in 28 studies and 2,388 PLMA insertions ranges from 76% to 100%: mean 87.3% (Table IV) (Table IV). 1,3,4,7,[10][11][12]14,15,[29][30][31][32][33]35,37,40,42,[44][45][46][48][49][50] Several design factors contribute to the improved airway seal of the PLMA compared to the cLMA. The larger, softer wedge-shaped PLMA cuff enables the anterior cuff to adapt to the shape of the pharynx better.…”

“…MUCOSAL INJURY AND SORE THROAT Mucosal injury, recognized by blood on the PLMA after removal, in 1,235 patients ranged from 3 to 28%: mean 10.2%. 1,3,4,14,15,[31][32][33][36][37][38][39][40] (Table VI). The incidence of sore throat after 1,586 PLMA uses ranged from 2 to 49%, mean 18% 3,4,12,14,15,31,33,34,[36][37][38][39][40][41]45,47 (Table VI).…”

“…In an estimated 1,000,000 uses of the PLMA (data on file LMA company) there are three cases of confirmed, and two of possible pulmonary aspiration (incidence one in 200,000-300,000). 40,49,[64][65][66] To have an 80% likelihood of detecting a genuine 50% reduction in aspiration with the PLMA would require a trial of 2,600,000 patients.…”

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

“…The laryngeal tube suction II (LTS-II; VBM, Medizintechnik GmbH, Sulz, Germany) is a recent version of the laryngeal tube (LT) family of supraglottic airway devices originally intended for emergency airway management including out of hospital use 1,2 and unexpected difficult airway situations 3,4 , but which are currently also used during general anaesthesia [5][6][7][8][9][10][11] . The original LT consists of an airway tube made of silicone and two cuffs.…”