To measure the distance between the upper edge of the thyroid cartilage to the upper edge of the sternum add the distance from the upper edge of the sternum to the carina was calculated according to the chest CT scans as a guide to the placement of Uniblocker without the aid of FOB.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
The intubation time
Timeframe: 1 year