HFNO 改善双腔气管插管肺部手术窒息期间的血氧饱和度

Direct guidance and positioning of DLT intubation with FOB visualization, using HFNO during intubation asphyxia.

After the patient's mask-assisted ventilation makes the end-expiratory oxygen concentration (EtO2) > 90%, wear the HFNO device according to the pre-adjusted mode (temperature 34°C, oxygen concentration 100%, flow rate 50 litres per minute). The nasal cannula will remain in place until intubation is complete (including DLT intubation, direct FOB guidance, and DLT alignment with FOB). After securing the HFNO device, the glottis was exposed using a laryngoscope, and the DLT main tracheal cuff was passed through the glottis and paused under direct vision. Insert the DLT into the bronchial tube lumen of the DLT using the FOB, and then advance the DLT into the corresponding main bronchus under the guidance of the FOB. After confirming the appropriate depth of the catheter using the FOB, insert the DLT into the anesthesia machine to complete the intubation process. After the DLT was connected to the anesthesia machine and mechanical ventilation was started, the HFNO device was removed.

• 高流量经鼻氧疗

The DLT cannula was directly guided and positioned under FOB visualization, and no oxygen therapy equipment was used during intubation.

Minimum SpO2 measured by capillary oximeter during DLT intubation. SpO2 was continuously monitored by the monitor every 1 second and recorded every 5 seconds, and the lowest SpO2 was recorded through the monitor by the recording personnel who were not involved in anesthesia management.

Minimum SpO2 measured by capillary oximeter during DLT intubation. SpO2 was continuously monitored by the monitor every 1 second and recorded every 5 seconds, and the lowest SpO2 was recorded through the monitor by the recording personnel who were not involved in anesthesia management.

Minimum SpO2 measured by capillary oximeter during DLT intubation. SpO2 was continuously monitored by the monitor every 1 second and recorded every 5 seconds, and the lowest SpO2 was recorded through the monitor by the recording personnel who were not involved in anesthesia management.

The DLT intubation period was defined as: from the time the video laryngoscope was placed in the oral cavity, to the confirmation of the correct position of the DLT by the FOB, and the end of the insertion of the anesthesia machine.

When the tracheal intubation is completed, the monitor displays the partial pressure of carbon dioxide at the end of the first mechanical ventilation.

When the tracheal intubation is completed, the monitor displays the end-expiratory oxygen concentration of the first mechanical ventilation.

Difficult airway was defined as failure of videolaryngoscope intubation, switch to fiberoptic bronchoscope-guided intubation.

Left or right bronchial tube strayed into right or left bronchus.

Associated complications during intubation include: reflux aspiration, laryngospasm or bronchospasm, tracheal or bronchial tear, barotrauma, systolic blood pressure < 90 mmHg or initiation of vasoactive drugs, systolic blood pressure > 180 mmHg, severe arrhythmias, and lips or tooth damage.

Operator satisfaction rating for intubation (range 0-10, with 0 being very dissatisfied and 10 being very satisfied).

After the patient entered the PACU, the blood oxygen saturation was continuously monitored and the lowest blood oxygen saturation value was recorded.

Postoperative airway-related complications include: sore throat, hoarseness, and nasopharyngeal dryness.

Interview patients' subjective feelings, including nausea and vomiting.

Patient satisfaction with anesthesia(range 0-10, with 0 being very dissatisfied and 10 being very satisfied).

The medical record system queries the number of days in hospital after surgery.

Postoperative complications included postoperative atelectasis, pneumothorax, pulmonary infection, pleural effusion, bronchopleural fistula and postoperative bleeding.