Baseline Characteristics
The average age of patients in this group, including 10 males and 9 females, was 62.3±6.7 years. Eight patients had hypertension before the operation, 12 patients had the syndrome of cardiac dysfunction, 2 patients had a history of cerebral infarction, 2 patients had diabetes, and none of the patients had valve disease. The average CHA2DS2VASc score was 2.6±0.8 and the average HASBLED score was 2.9±0.8 (Table 1).