Pathogenic bacteria and influencing factors of hospital acquired pneumonia in elderly patients with noninvasive mechanical ventilation in respiratory department
Objective To determine the pathogenic bacteria and influencing factors of hospital-acquired pneumonia in elderly patients with noninvasive mechanical ventilation in respiratory department.Methods A total of 493 elderly patients treated with noninvasive mechanical ventilation in the respiratory department of our hospital were selected as the research objects.The incidence,pathogen distribution and risk factors of hospital-acquired pneumonia in elderly patients with noninvasive mechanical ventilation in the respiratory department were counted and analyzed.Results Of the 493 elderly patients with noninvasive mechanical ventilation in the respiratory department,38(7.71%)suffered from hospital-acquired pneumonia.A total of 53 strains of pathogenic bacteria were detected,including 31 strains(58.49%)of Gram-negative bacteria,15 strains(28.30%)of Gram-positive bacteria and 7 strains(13.21%)of fungi.Multivariate logistic analysis showed that the risk factors of hospital acquired pneumonia in elderly patients with noninvasive mechanical ventilation in respiratory department were:age≥75 years old,unconsciousness,dysphagia,hypoproteinemia,reflux aspiration,time of using noninvasive ventilator≥7 days,frequency of replacing ventilator circuit≥5 days/time and use of broad-spectrum antibiotics.Conclusion The incidence of hospital acquired pneumonia in elderly patients with noninvasive mechanical ventilation in respiratory department is high.The main pathogen is Gram-negative bacteria,and fungi also account for a certain proportion.There are many influencing factors,which should attract the attention of respiratory doctors.
department of respiratorynoninvasive mechanical ventilationhospital acquired pneumoniapathogenic bacteriainfluencing factors
NETL
NSTL
万方数据
维普
