To analyze the clinical characteristics and explore the safety of bronchoscopy in lung cancer patients with arrhythmia.

A retrospective analysis was performed in 65 lung cancer patients with arrhythmia in our hospital from March 2021 to June 2022. They were divided into lung cancer with arrhythmia group (observation group, 33 cases) and lung cancer without arrhythmia group (control group, 32 cases). The clinical characteristics of the two groups were comparable.

Among the 33 patients in the observation group, 18 had sinus tachycardia, 13 had atrial premature beats, 10 had ventricular premature beats, 6 had atrial fibrillation, 1 had supraventricular tachycardia, and 4 had right bundle branch block. Compared with the control group, patients in the observation group had more central type lesions [19 cases(57.6%)vs. 10 cases(31.3%)] and later clinical stages [31 cases(93.9%)vs. 23 cases(71.9%)] (P<0.05). The incidence of arrhythmia was 9 cases (13.8%) in the 65 patients undergoing bronchoscopy, 6 cases (18.2%) in the observation group, and 3 cases (9.4%) in the control group. There was no statistical difference between the two groups. Arrhythmia could be recovered to the preoperative level after the bronchoscope was withdrawn. There was no significant difference in the incidence of hypoxemia, pneumothorax, and bleeding between the two groups.

Lung cancer patients with central type lesions or stage Ⅲ/Ⅳ are more likely to have arrhythmia. After arrhythmia was controlled by drug, bronchoscopy under sedation has satisfactory safety.