ABSTRACT

Interventional bronchoscopy procedures are novel and effective modes of diagnosing and treating airway lesions. Airway management and ventilation are a major concern, especially when considering the fire hazard of ventilating during endobronchial thermal therapies. The aim of this study was to evaluate the usage of laryngeal mask airway (LMA) compared to rigid bronchoscopy for the ventilation of patients undergoing diagnostic or therapeutic interventional bronchoscopy procedures.

During this prospective randomised clinical trial study, patients were randomly allocated to two groups for ventilation: LMA and rigid bronchoscopy. Vital signs, including blood pressure, heart rate and percentage of blood O2 saturation before and during the procedure, degree of sore throat after recovery and physician’s satisfaction, were recorded.

A total of 83 patients, including 45 in the “LMA” and 38 in the “rigid” groups, were enrolled in this study. Their mean age was 51±17 years, and 59 (71%) were male. There was a statically significant difference between “rigid” and “LMA” categories regarding the decrease in O2 during the procedure in proportion to baseline figures (p=0.028). Haemodynamic parameters were better maintained using LMA compared to rigid bronchoscopy.

Laryngeal mask ventilation maintains better oxygenation and haemodynamic stability and ensures physicians’ and patients’ satisfaction regarding ease of use, airway access and fewer complications compared to rigid bronchoscopy. Therefore, LMA can be introduced as a reliable alternative for ventilation during interventional airway procedures.

Keywords: Laryngeal mask, rigid bronchoscope, interventional bronchoscopy