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Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Conclusion
Our study reassessed in patients with COPD the previously described effects of PSV on the breathing pattern. For PSV levels >12 cm H2O, group 1 patients exhibited significant lower sVe and Sf with higher sVt than did group 2 patients. However, despite this difference in sVe, there was no difference in blood gas values between […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Comment
Respiratory acidosis alone, even without clinical signs of respiratory muscle fatigue, was enough to return to the previous step. With PSV, the average weaning time showed a tendency to be shorter, but the difference between the two groups did not reach the significance level, which is not surprising given the small number of patients studied. […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Discussion
At the end of this study, all patients with COPD were extubated as they had undergone long periods of SB without clinical or/and blood gas value deterioration. The duration of the weaning period appeared lower in group 1 than in group 2: 4.2 ±0.8 days (SIMV/PSV) vs 5.3±1.0 days (SIMV), but the difference did not […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Results
Ten patients were randomized to receive SIMV/ PSV (group 1) and nine were randomized to receive SIMV alone (group 2). The clinical and physical characteristics of the 19 studied patients are given in Table 1. Group 1 and group 2 patients were all cigarette smokers with obstructive lung disease documented by their pulmonary function test […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Measurements
At each step of SIMV rate (te, at each 2 cycles/min decrease), several measurements were performed when a ventilatory steady state was achieved on semirecumbent position: average systolic blood pressure (SBP) and heart rate (HR) from repeated measurements, spontaneous tidal volume (sVt), total and spontaneous minute ventilation (Ve and sVe). The steady state was arbitrarily […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation: Patients
This prospective study was designed for male COPD patients, intubated and mechanically ventilated because of an acute exacerbation of their disease. All patients exhibited clinically a chronic bronchitis defined as a productive cough with sputum production for 3 months per year for a 2-consecutive-year period (American Lung Association criteria and an irreversible chronic airflow limitation […]
Synchronized Intermittent Mandatory Ventilation With and Without Pressure Support Ventilation in Weaning Patients With COPD From Mechanical Ventilation
The most critical time for patients with chronic obstructive pulmonary disease (COPD) mechanically ventilated for acute respiratory failure (ARF) is the weaning period. Asthma inhalers online Link Patients with hyperinflation and/or bad nutritional status2 are obviously exposed to difficulties in recovering sustained spontaneous breathing. Indeed, patients with COPD often do not tolerate discontinuation of mechanical […]