Sex-Based ProSeal??? Laryngeal Mask Airway Size Selection: A Randomized Crossover Study of Anesthetized, Paralyzed Male and Female Adult Patients

Abstract

When sex is used to select the appropriate size of the ProSeal laryngeal mask airway, the Size 4 ProSeal is preferable for women and the Size 5 ProSeal for men.

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

“…In females, size 4 produced the best compromise between insertion ease and airway seal. 3,4 No data on other size selection in other ethnic groups exist.…”

“…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.…”

“…14,15 VIEW OF THE GLOTTIS Sixteen studies report the fibreoptic view of the larynx via the PLMA in 1,407 patients. 3,4,[10][11][12]17,20,29,[31][32][33][34]41,44,50 Different scoring systems used make direct comparisons difficult, but the vocal cords were seen in > 80% of cases in 14 studies, mean 84.7%, (Table V). In contrast to the cLMA and ILMA, no bars or epiglottic elevator impedes the view or instrumentation of the glottis.…”

Comparison of First Attempt Success Rate between Two Insertion Techniques of Proseal Laryngeal Mask Airway

“…Pro Seal LMA size 4 was used in 56% of patients with bougie guided insertion while in 70% patients with introducer guided insertion uses Pro Seal LMA size 4. this bears no particular effect on the the outcome and is therefore statistically insignificant.(P>0.05). Kihara et al [15] found that size selection for the ProSeal LMA was equally effective using the manufacturer , s weight based formula, in terms of ease of insertion. First attempt success rate In our study we found that the first attempt success rate was high in bougie guided insertion of PLMA (98% vs 86%).…”

Glottic insertion of the ProSealTM LMA occurs in 6% of cases: A review of 627 patients

“…The PLMA was then inserted with the fingertip method, 2 using size 4 masks in women and size 5 masks in men, and the cuff inflated to 60 cm H 2 0 (Portex Inc., Cuff Pressure Indicator #660001, Keene, NH, USA). 5 Following insertion, we recorded the depth of insertion of the mask with a scoring system comparing positioning of the integral bite block to the upper incisors. 6 Using a non-toxic children's soap bubble solution, a soap membrane was placed on the drain tube by wetting a fingertip and then touching the port.…”