title: A prospective study to evaluate and compare laryngeal mask airway ProSeal and i-gel airway in the prone position.
abstract: BACKGROUND
  Prone position is commonly used to provide surgical access to a variety of surgeries. In view of the advantages of induction of anesthesia in the prone position, we conducted a randomized study to evaluate and compare ProSeal laryngeal mask airway (LMA) and i-gel in the prone position.
  
  
  METHODS
  Totally, 40 patients of either sex as per American Society of Anesthesiologists physical status I or II, between 16 and 60 years of age, scheduled to undergo surgery in prone position were included in the study. After the patients positioned themselves prone on the operating table, anesthesia was induced by the standard technique. LMA ProSeal was used as an airway conduit in group 1 while i-gel was used in group 2. At the end of surgery, the airway device was removed in the same position.
  
  
  RESULTS
  Insertion of airway device was successful in first attempt in 16, and 17 cases in ProSeal laryngeal mask airway (PLMA) and i-gel groups, respectively. A second attempt was required to secure the airway in 4 and 3 patients in PLMA and i-gel groups, respectively. The mean insertion time was 21.8 ± 2.70 s for group 1 and 13.1 ± 2.24 s for group 2, the difference being statistically significant (P < 0.05). The mean seal pressure in group 1 was 36 ± 6.22 cm H2 O and in group 2 was 25.4 ± 3.21 cm H2 O. The difference was statistically significant (P < 0.05). 13 patients in group 1 had fiberoptic bronchoscopy (FOB) grade 1 while it was 6 for group 2. The remaining patients in both groups had FOB grade 2.
  
  
  CONCLUSIONS
  Insertion of supraglottic airways and conduct of anesthesia with them is feasible in the prone position. The PLMA has a better seal while insertion is easier with i-gel.
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Susheela
authors.initials: S
authors.lastname: Taxak
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Ajith
authors.initials: A
authors.lastname: Gopinath
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Savita
authors.initials: S
authors.lastname: Saini
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Teena
authors.initials: T
authors.lastname: Bansal
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Mangal Singh
authors.initials: MS
authors.lastname: Ahlawat
authors.affiliation: Department of Anesthesiology and Critical Care, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India.
authors.forename: Manju
authors.initials: M
authors.lastname: Bala
keywords: Anesthesia; ProSeal laryngeal mask airway; i-gel; prone position; supraglottic airway device