Analysis of main factors associated with ventilator weaning for elderly patients with prolonged mechanical ventilation
- VernacularTitle:长期机械通气的老年患者撤机的影响因素分析
- Author:
Yan LIN
;
Senyang YU
- Publication Type:Journal Article
- Keywords:
Ventilator, negative-pressure;
Ventilation weaning
- From:
Chinese Journal of Geriatrics
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To screen the influencing factors related to prolonged mechanical ventilation (PMV). Methods Series of parameters of 154 elderly patients with pneumonia or COPD exacerbation were collected before using ventilator, after weaning of ventilator or at the 21st day of ventilating, respectively. Results By single factor analysis, PMV related to not only age, lying on bed, white blood cell, neutrophil, P (A-a)O 2, BUN, Cr, upper digestive tract bleeding, heart rate(HR), and blood pressure(BP) before using ventilator, but also related to heart function and consciousness after ventilator weaning or ventilating for 21 days. By multiple factor analysis, age, P (A-a) O 2 , heart function when ventilating for 21 days were related to PMV. Age≥82.0, P (A-a)O 2 ≥95.0 mm Hg, heart function≥grade 3 were high risk factors of PMV. Furthermore, it was found that the accuracy rate for meeting with those three parameters among 8 elderly patients with PMV was 87.5%. Conclusions Age, P (A-a)O 2 and heart function when ventilating for 21 days might be the independent factors of PMV.
