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  • Title: Weaning of long-term mechanically-ventilated patients following video bronchoscopy-guided percutaneous dilatational tracheostomy.
    Author: Chiu CT, Chung YH, Lu HI, Lin MC.
    Journal: Chang Gung Med J; 2005 Dec; 28(12):829-36. PubMed ID: 16515016.
    Abstract:
    BACKGROUND: This is a prospective study of peri-procedure and post-procedure complications and successful weaning of long-term mechanically-ventilated patients following video bronchoscopy-guided percutaneous dilatational tracheostomy (PDT). METHODS: Video bronchoscopy guided PDT was performed for long-term mechanically-ventilated patients in a medical intensive care unit (ICU). Peri-procedure and post-procedure complications were prospectively observed and evaluated. The success of weaning and the factors affecting the outcomes of these patients after PDT were also investigated. RESULTS: A total of 107 patients with mechanical ventilation were enrolled. The average duration of trans-laryngeal intubation was 27.8 +/- 18.4 days which was longer than reported in previous studies. There were 70 men and 37 women, all of whom underwent bedside PDT at a medical ICU. The complication rates during and post-procedure were 8.4% and 14%, respectively. The most common complications were desaturation during the procedure and bleeding during the follow-up period. Only one death was procedure related (0.9%). After PDT, 50 patients (46.7%) were successfully weaned from mechanical ventilation. The rate of successful weaning (p = 0.02) increased while the days to achievement (p < 0.001) decreased with decreasing duration of trans-laryngeal intubation. Gender, age, body weight, Acute Physiology and Chronic Health Evaluation II (APACHE II) score, duration of procedure, endotracheal tube diameter and position, and history of self-extubation were not related to successful weaning. CONCLUSIONS: PDT is a bedside procedure with relatively low complication and mortality rates when performed for patients on long-term mechanical ventilation in a medical ICU. The previous duration of trans-laryngeal intubation was an important determinant for successful weaning after PDT.
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