Duct obstruction

Catheter prolapse

Twisted catheter

ventilator associated pneumonia

catheter related pneumonia

catheter-related sepsis

tracheoesophageal fistula

pneumothorax

Displacement of catheter

Laryngoscope causes soft tissue damage at the contact site, such as lips and gums

Nasotracheal intubation causes epistaxis, damages the mucosa of the nose and nasopharynx, and forms a false passage

Pneumothorax, infection

Sympathetic response, tachycardia or bradycardia

Patients with coronary artery sclerosis can cause myocardial ischemia

Patients with existing hypertension have a more pronounced blood pressure response

In patients with intracranial space-occupying lesions, further increase in intracranial pressure may induce cerebral herniation.

Gastric contents enter the throat cavity and trachea

Patients under light anesthesia are more likely to develop bronchospasm

It is not advisable to routinely use a sputum suction tube to suction sputum

If there is too much sputum during the operation or the blood from lung resection flows into the trachea, it is necessary to aspirate it multiple times in time.

Be careful not to continue suctioning for too long to avoid causing hypoxemia, bradycardia or even cardiac arrest.

Bilateral vocal cord paralysis can cause complete obstruction of the airway