Masui. The Japanese journal of anesthesiology
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Pentax-Airwayscope (AWS-S100) is useful for tracheal intubation, and a new version S200 has recently been introduced to clinical practice. We felt that S200 was more difficult than the S100 in attaching and detaching a single-use Introck blade. ⋯ It is necessary to apply lubricant to the distal part of the scope to prevent damage to the scope.
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It is recommended to avoid overinflation of the bronchial cuff, leading to ischemic pressure damages to the respiratory mucosa and bronchial rupture. We investigated the minimum bronchial cuff pressure of 35 Fr double lumen tubes (DLTs) during one lung ventilation using a capnometer. ⋯ In this study, the bronchial pressure higher than 12 cmH2O was not necessary for one lung ventilation. If high intracuff pressure is necessary to seal the bronchus, there are possibilities of the incompatibility of the size of DLT and the herniation of the bronchial cuff to the proximal side. The method of confirmation of OLV using a capnometer can display the non ventilated condition on the monitor objectively. We can thus decrease troubles during operations.