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Background With the development of economy and the improvement of peoples living standards,peoples living habits also change greatly,and the unhealthy lifestyle largely leads to an increasing morbidity of cardiovascular disease (CVD) which is becoming one of the most frequently-occurring diseases.Such factors as surgical trauma,anesthesia and intubation may greatly cause CVD patients discomfort and largely affect the treatment of CVDs.Thus,it is essential to strengthen the cause analysis on common discomforts after cardiovascular surgery and provide patients safe,efficient and personalized nursings,which play a great role in further enhancement of surgical treatment of CVDs.