Objective To examine the effects of ionizing radiation on blood pressure and electrocardiography among healthcare workers in department of cardiovascular diseases,and to provide a reference for formulating the protective inter-ventions against radiation exposure.Methods A total of 127 healthcare workers with radiation exposure in the Depart-ment of Cardiovascular Diseases of The 904th Hospital of the Joint Logistics Support Force of the PLA from 2018 to 2022 were included in the observation group.Meanwhile,127 age-and gender-matched healthcare workers without radiation ex-posure in the same department during the same study period were included in the control group.The systolic blood pressure,diastolic blood pressure,heart rate,and the detection rates of hypertension and abnormal electrocardiography were compared between groups.Results There were no significant differences between groups in mean age(t=0.77,P＞0.05),sex(x2=0.02,P＞0.05),prevalence of smoking(x2=0.28,P＞0.05),and alcohol consumption(x2=0.02,P＞0.05).There were sig-nificant differences between the observation and control groups in systolic blood pressure[(127.77±15.43)mmHg vs.(111.23±19.10)mmHg;t=4.21,P＜0.05],diastolic blood pressure[(79.32±8.23)mmHg vs.(69.91±10.21)mmHg;t=4.09,P＜0.05],prevalence of hypertension[17.32％(22/127)vs.8.66％(11/127);x2=4.21,P＜0.05],heart rate[(81.10± 11.27)beats/min vs.(70.45±10.55)beats/min;t=4.33,P＜0.05],and abnormal rate of electrocardiography[21.26％(27/127)vs.10.24％(13/127);x2=5.82,P＜0.05].Conclusion Ionizing radiation affects blood pressure and electrocardi-ography among healthcare workers in department of cardiovascular diseases.The prevention and monitoring of radiation ex-posure and occupational physical examination should be improved among healthcare workers with exposure to radiation in the department of cardiovascular diseases,with aims to reduce the hazard of radiation exposure and protect the health of healthcare workers.
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