OBJECTIVE: Prospective randomized controlled study was conducted to explore the effects and safety of prophylactic use of noninvasive positive pressure ventilation (NPPV) in post-thoracic surgery (PTS) patients, especially on the lung re-expansion, lung function change and postoperative pulmonary complications (PPCs). METHODS:Fifty PTS patients met the inclusion criterion were enrolled in the study. All subjects were randomly divided into conventional treatment (control) group and NPPV group. NPPV group received intermittent NPPV therapy in first three days of PTS. BiPAP ventilator was used with S/T mode in the study. The average IPAP was (13±3.2)cmH(2)O (ranged from 7 to 18 cmH(2)O) and EPAP was 4cmH(2)O. Total ventilation time was (13.5±4.9) hours (ranged from 6.5 to 23 hours). PPCs rate, lung re-expansion, the volume of residual cavity, lung function and tolerance to NPPV were assessed with chest roentgenography, CT scan, lung function testing and clinical evaluation before and one week after surgery. RESULTS: 1. There was no significant difference of total PPCs rate during hospitalization between the two groups (5/23 in NPPV group vs 6/27 in control group, P= 0.967). Multiple factorial logistic regression analysis showed that COPD was a risk factor for PPCs (B=1.705, P=0.027). 2. Compared with control group, NPPV therapy reduced inadequate lung expansion rate (3/23 vs 13/27, P=0.008) and volume of residual cavity calculated with CT scan [(31.9±71.7)ml vs (63.6±78.3)ml, P=0.02]. However, there were no significant difference in the change of lung function parameters after operation between the two groups (all P>0.05). No significant adverse effects of NPPV were found in the present study. CONCLUSIONS: In the current study of prophylactic application of NPPV in post-thoracic surgery patients, the use of NPPV resulted in improved lung re-expansion, but had no significant effects on post-operative pulmonary complications and lung functions.
RCT Entities:
OBJECTIVE: Prospective randomized controlled study was conducted to explore the effects and safety of prophylactic use of noninvasive positive pressure ventilation (NPPV) in post-thoracic surgery (PTS) patients, especially on the lung re-expansion, lung function change and postoperative pulmonary complications (PPCs). METHODS: Fifty PTSpatients met the inclusion criterion were enrolled in the study. All subjects were randomly divided into conventional treatment (control) group and NPPV group. NPPV group received intermittent NPPV therapy in first three days of PTS. BiPAP ventilator was used with S/T mode in the study. The average IPAP was (13±3.2)cmH(2)O (ranged from 7 to 18 cmH(2)O) and EPAP was 4cmH(2)O. Total ventilation time was (13.5±4.9) hours (ranged from 6.5 to 23 hours). PPCs rate, lung re-expansion, the volume of residual cavity, lung function and tolerance to NPPV were assessed with chest roentgenography, CT scan, lung function testing and clinical evaluation before and one week after surgery. RESULTS: 1. There was no significant difference of total PPCs rate during hospitalization between the two groups (5/23 in NPPV group vs 6/27 in control group, P= 0.967). Multiple factorial logistic regression analysis showed that COPD was a risk factor for PPCs (B=1.705, P=0.027). 2. Compared with control group, NPPV therapy reduced inadequate lung expansion rate (3/23 vs 13/27, P=0.008) and volume of residual cavity calculated with CT scan [(31.9±71.7)ml vs (63.6±78.3)ml, P=0.02]. However, there were no significant difference in the change of lung function parameters after operation between the two groups (all P>0.05). No significant adverse effects of NPPV were found in the present study. CONCLUSIONS: In the current study of prophylactic application of NPPV in post-thoracic surgery patients, the use of NPPV resulted in improved lung re-expansion, but had no significant effects on post-operative pulmonary complications and lung functions.
Entities:
Keywords:
noninvasive positive pressure ventilation; postoperative pulmonary complications; thoracic surgery
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