[治疗]Section3 Tracheotomy

Respiratory mechanism disorder or dyspnoea caused by retention of lower respiratory tract secretions ﹒ At present，there are four categories to incise tracheae：tracheotomy，percutaneous tracheotomy。Lad刀刃Posterior wall气管后瘘Esophagus食管Fig ﹒ 7‐3‐5 cut the front ......