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作者对气管内插管10～14天的病人作直接喉镜检查,发现杓状软骨区溃疡,插管接触点周围有肉芽组织,声带游离缘有轻度水肿。为了对气管内插管压迫喉组织进行定量观察,作者用狗三只,通过喉裂开置入测压装置,保持环状软骨完整。再以不同直径的插管插入,并记录其对喉壁的压力。根据实验数据并结合文献复习,提出下列看法:(1)插管对喉后外侧压力点的压力远超过毛细管灌注压,即使使用小管,其压力仍在
The author of endotracheal intubation for 10 to 14 days for direct laryngoscopy patients found that the arytenoid cartilage ulcer, granulation tissue around the intubation contact point, mild vocal cord edema. In order to quantitatively observe the endotracheal tube compression of laryngeal tissue, the author used three dogs to open the pressure-measuring device through the larynx to keep the ring-shaped cartilage intact. Insert with different diameter cannula and record the pressure on the throat wall. Based on the experimental data and review of the literature, the following observations are made: (1) The pressure at the lateral laryngeal pressure point of the cannula is much higher than the capillary perfusion pressure, and even with the use of a small tube, the pressure remains