A jet nebuliser for delivery of topical anesthesia to the respiratory tract. A comparison with cricothyroid puncture and direct spraying for fibreoptic bronchoscopy

Anaesthesia. 1990 Jan;45(1):46-8. doi: 10.1111/j.1365-2044.1990.tb14504.x.


Topical anesthesia of the respiratory tract for fibreoptic bronchoscopy was compared, in a single-blind study, inhaled from a simple and inexpensive jet nebuliser, administered by cricothyroid injection or by a 'spray-as-you-go technique'. Each technique was supplemented by spraying lignocaine through the fibrescope and intravenous fentanyl-droperidol sedation. Inhaled nebulisation was successfully used for 96% (46 of 48) of patients, was safe, effective and acceptable to the patient and bronchoscopist. The cricothyroid injection method produced better conditions than nebulisation in patients who had diagnostic bronchoscopy. The nebuliser technique is as satisfactory as the spraying technique in patients for diagnostic bronchial lavage in whom bleeding from a cricothyroid puncture is unacceptable. Patients who used the nebuliser were more satisfied. This technique may also be a useful method for 'awake' intubation.

Publication types

  • Clinical Trial
  • Comparative Study
  • Controlled Clinical Trial
  • Randomized Controlled Trial

MeSH terms

  • Administration, Inhalation
  • Aerosols
  • Anesthesia, Local*
  • Bronchoscopy*
  • Equipment Design
  • Fiber Optic Technology
  • Humans
  • Injections
  • Lidocaine / administration & dosage*
  • Middle Aged
  • Nebulizers and Vaporizers*
  • Patient Compliance
  • Single-Blind Method


  • Aerosols
  • Lidocaine