Application of MRV in respirator weaning in patients with type Ⅱ respiratory failure
- VernacularTitle:MRV在Ⅱ型呼吸衰竭患者撤机时的临床研究
- Author:
Daoxin WANG
;
Guihua CHENG
;
Xianzhi DU
;
- Publication Type:Journal Article
- Keywords:
mandatory rate ventilation;
weaning;
respiratory mechanics;
type Ⅱ respiratory failure
- From:Journal of Third Military Medical University
1988;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of two weaning modes of mandatory rate ventilation (MRV) and SIMV+PSV on respiratory mechanics in patients with type Ⅱ respiratory failure. Methods A total of 30 patients with type Ⅱ respiratory failure were sem randomly divided into two groups. Patients with type Ⅱ respiratory failure received ventilation in CMV mode or CMV/ACMV modes and then SIMV+PSV. When patients could be weaned, MRV mode was adopted in MRV group, but SIMV+PSV modes were adopted in the control group. After continuous operation in each mode for 60 min and when the tidal volume (VT) and minute ventilation (MV) in MRV mode were the same as those in SIMV+PSV mode, PIP, PP, Pm, PEEPi, blood gas changes, and weaning success in the two groups were observed during ventilation. Results PIP, PP, and Pm in patients in MRV mode were significantly lower than those in SIMV+PSV modes ( P 0.05), but the synchronism in patients in MRV group was better. Conclusion MRV is a more adaptable weaning mode for patients with type Ⅱ respiratory failure.
