The precautions for using double bronchial intubation include the following:

Choosing the appropriate catheter: The appropriate catheter size should be selected based on the patient's height, weight, tracheal condition, etc., to avoid the catheter being too thick or too thin, which may cause damage to the throat and trachea or be detrimental to breathing.

Gentle intubation operation: During the intubation process, ensure gentle movements to avoid unnecessary damage to the trachea.

Accurate exposure and insertion: During endotracheal intubation, the airway should be fully exposed to ensure accurate insertion of the catheter into the left and right bronchi, avoiding accidental entry into one bronchus or esophagus.

Moderate inflation of the cuff: The cuff inflation should precisely seal the gap between the catheter and the tracheal wall, avoiding blind injection of large amounts of air that may cause ischemic necrosis of the tracheal wall.

Maintain patency and fixation: After intubation, the tracheal tube should be regularly checked for patency to ensure oxygen supply, and the catheter should be properly secured to prevent displacement or detachment.

Pay attention to the patient's condition: During and after intubation, closely monitor the patient's vital signs and respiratory status, and promptly address any abnormalities.

Anesthesia management: When using double bronchial intubation, anesthesia should not be too shallow to avoid affecting the progress of intubation and the patient's breathing condition.

Avoid injury: When helping patients change positions, attention should be paid not to tilt the head too far back to prevent tracheal injury.

Post extubation care: After extubation, the respiratory tract should be kept unobstructed. Patients should adopt a semi sitting position and engage in deep breathing exercises and effective coughing to prevent atelectasis.

In addition, for specific patient groups, such as those with dentures, they should be removed before endotracheal intubation to prevent tooth loss or suffocation caused by falling into the airway.

In general, the use of double bronchial intubation requires professional medical personnel to strictly follow the operating procedures and precautions to ensure patient safety and treatment effectiveness. During the operation, medical staff should closely observe the patient's condition and promptly handle any abnormal situations. At the same time, patients and their families should actively cooperate with medical staff's operations and follow medical advice for subsequent care and rehabilitation.