Chest
Selected ReportsThe Effect of Pressure Support Ventilation on Auto-PEEP in a Patient with Asthma
Section snippets
CASE REPORT
A 77-year-old woman with a history of asthma was admitted to our hospital for a lung tumor detected on chest roentgenogram. She had no history of chronic bronchitis or emphysema. Admission diagnosis was lung abscess. Preoperatively, the airways appeared to be normal by bronchoscopy. Partial resection of the right upper lobe of the lung was performed. After surgery she was not extubated because wheezing was noted. There was no postoperative hemorrhage in the airway. She was transferred to the
DISCUSSION
The level of auto-PEEP during mechanical ventilation depends on the resistance and compliance of the total respiratory system, TE, and (calculated from VT and f). Auto-PEEP decreases as decreases or TE increases. In our patient, an increase in TE during PSV contributed to a decrease in auto-PEEP, despite an increase in VT. However, a PSV level of 15 cm H2O did not decrease auto-PEEP any more than a PSV level of 10 cm H2O did. This plateau of auto-PEEP might be due to the
REFERENCES (10)
- et al.
Occult positive end expiratory pressure in mechanically ventilated patients with airflow obstruction
Am Rev Respir Dis
(1982) - et al.
Measurement of static compliance of the total respiratory system in patients with acute respiratory failure during mechanical ventilation
Am Rev Respir Dis
(1985) - et al.
Work of breathing in patients with chronic obstructive pulmonary disease in acute respiratory failure
Am Rev Respir Dis
(1985) - et al.
A simple method for assessing the validity of the esophageal balloon technique
Am Rev Respir Dis
(1982) - et al.
Continuous positive airway pressure reduces work of breathing and dyspnea during weaning from mechanical ventilation in severe chronic obstructive pulmonary disease
Am Rev Respir Dis
(1990)
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