title: Postoperative Respiratory Complications of Laryngeal Mask Airway and Tracheal Tube in Ear, Nose and Throat Operations.
abstract: BACKGROUND
  Supraglottic devices could be used to reduce postoperative respiratory complications, but there are few studies focused on their use in more prolonged surgeries.
  
  
  OBJECTIVE
  In this study, we compared postoperative respiratory complications in patients with prolonged ear, nose and throat (ENT) surgeries, whose airways were controlled with tracheal tube or laryngeal mask airway (LMA).
  
  
  METHODS
  In a randomized control trial (RCT), 171 candidates of prolonged ENT surgeries were randomly assigned into two groups. In group one (n = 85) LMA and in group two (n = 86) endotracheal tube were used for airway control. The incidences of four postoperative respiratory complications including sore throat, hoarseness, cough and shortness of breath in immediate postoperative period were measured and compared among patients of each group.
  
  
  RESULTS
  Sore throat was recorded in 32.9% of patients with LMA and 44.2% of intubated patients, but it was not statistically significant (Fisher's Exact test = 0.158). Hoarseness was recorded in 3.5% of patients with LMA and 24.4% of intubated patients (Fisher's Exact test = 0.000). In 1.2% of patients with LMA cough was recorded; it was also seen in 7% of the intubated patients (Fisher's Exact test = 0.005). Shortness of breath was mentioned by two intubated patients (2.3%) and in patient with LMA we did not record this complication.
  
  
  CONCLUSIONS
  LMA in prolonged ENT surgeries was associated with reduced respiratory complications.
authors.affiliation: Department of Anesthesiology, Rasoul Akram Medical Center, Iran University of Medical Scienses, Tehran, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Safaeian
authors.affiliation: Department of Anesthesiology, Rasoul Akram Medical Center, Iran University of Medical Scienses, Tehran, Iran.
authors.forename: Valiollah
authors.initials: V
authors.lastname: Hassani
authors.affiliation: Department of Anesthesiology, Hasheminejad Hospital, Iran University of Medical Scienses, Tehran, Iran.
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Movasaghi
authors.affiliation: Department of Anesthesiology, Rasoul Akram Medical Center, Iran University of Medical Scienses, Tehran, Iran.
authors.forename: Mahzad
authors.initials: M
authors.lastname: Alimian
authors.affiliation: Department of Anesthesiology, Rasoul Akram Medical Center, Iran University of Medical Scienses, Tehran, Iran.
authors.forename: Hamid Reza
authors.initials: HR
authors.lastname: Faiz
keywords: Endotracheal Intubation; Hoarseness; Laryngeal Mask Airway