From: Safety application of muscle relaxants and the traditional low-frequency ventilation during the flexible or rigid bronchoscopy in patients with central airway obstruction: a retrospective observational study
Risk factors
OR (95% CI)
P value
ASA
0.469 (0.283 ~ 0.777)
0.003
Dyspnea or orthopnea
2.878 (1.315 ~ 6.298)
0.008