Objective To compare the effects of small-dose sufentanil and fentanyl on cardiovascular responses to laryngoscopic orotracheal intubation in children.
The foreign bodies were removed under was direct laryngoscopy and tracheobronchoscopy using foreign body forceps and an effective passage was quickly established.
Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
Sure, it won't replace laryngoscope's around the world, but it might be a tool a doctor can use in emergency situations where the traditional instrument cannot be used.
In case they can't do it on their own to do so, a doctor uses their laryngoscope and starts passing it down the throat until they get into the trachea.