目的　观察纤维支气管镜床边治疗ICU患者肺不张的疗效和安全性。方法　27 例患者在床边监护、吸氧或机械通气下,纤维支气管镜插至堵塞部位对痰栓、粘液栓或血凝块进行抽吸,必要时辅以支气管灌洗或活检钳钳夹,直至清除。观察治疗前后患者的X线胸片和经皮血氧饱和度、心率、血压等指标。结果　27 例患者累计治疗52例次。治疗后X线胸片示肺复张24例(88 .9%),未复张3例(11 .1%)。无严重并发症。结论　床边纤维支气管镜治疗ICU患者肺不张安全有效。 Objective To observe the efficacy and safety of fiberoptic bronchoscopy in the treatment of atelectasis in patients with ICU. Methods 27 patients under bedside monitoring, oxygen or mechanical ventilation, fiberoptic bronchoscopy inserted into the blockage of the sputum thrombus, mucus plug or clot aspiration, if necessary, supplemented by bronchial lavage or biopsy forceps clamp, Until cleared. Before and after treatment of patients with X-ray and transcutaneous oxygen saturation, heart rate, blood pressure and other indicators. Results 27 patients accumulated treatment of 52 cases. After treatment, X-ray showed pulmonary recanalization in 24 cases (88.9%) and no recanalization in 3 cases (11.1%). No serious complications. Conclusions Bedside fiberoptic bronchoscopy is safe and effective for the treatment of atelectasis in ICU patients.