Objective: The objective is to investigate the incidence and consequences of arterial line occlusion\nduring invasive blood pressure monitoring in the form of questionnaire survey. Methods: The\nquestionnaires were randomly distributed to the anesthesiologists who participated the 22nd annual\nmeeting of Chinese society of anesthesiology. The main contents of this survey included the\narterial line managing status, the incidence of arterial line occlusion, the effects of arterial line occlusion\non the anesthesiologistsâ�� therapy and consequences caused by arterial line occlusion. Results:\nTotally 294 questionnaires were collected, in which 261 questionnaires were valid. In all\nrespondents, 28.3% expressed that they could not flush arterial line on time, and 95.4% had experienced\nflushing arterial line only or sometimes or occasionally when the arterial waveform was\nnot normal. Furthermore, 93.9% had experienced partial occlusion of the arterial line, and 79.3%\nhad experienced complete occlusion. According to the serious recall of the respondents, the incidence\nof partial arterial line occlusion was 17.7% �± 22.0%, and the incidence of complete arterial\nline occlusion was 3.6% �± 8.1%. For all the respondents, 89.7% had experienced suspecting arterial\nline occlusion while real hypotension occurred, 65.1% had experienced not treating hypotension\ntimely due to this suspicion, and 31% had experienced serious consequences caused by\nthis suspicion. Conclusion: The incidence of arterial line occlusion is high during invasive blood\npressure monitoring, which is a threat to the patientsâ�� safety. So, intensive attention should be\npaid to the arterial line management.
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