Predictive value of CHADS₂ and CHA₂DS₂-VASc scores for coronary artery lesions and in-hospital prognosis of patients with acute ST-segment elevation myocardial infarction

To evaluate the predictive value of CHADS₂ and CHA₂DS₂-VASc scores for coronary artery lesions and in-hospital prognosis of patients with acute ST-segment elevation myocardial infarction (STEMI).

A total of 524 patients who were diagnosed with STEMI from January 2016 to August 2017 were retrospectively reviewed. The correlation between CHADS₂ and CHA₂DS₂-VASc scores with the patients’ clinical data, number of coronary lesions, Gensini scores, the target vessel and hospitalization time and in-hospital adverse events (AEs) was analyzed.

The number of coronary lesions in STEMI patients was mainly single and double lesions. The CHADS₂ and CHA₂DS₂-VASc scores were not meaningful for predicting the number of coronary lesions. However, for left main coronary artery lesion, CHADS₂ score was significantly increased when the number increased (P < 0.05), but CHA₂DS₂-VASc score showed no statistical difference (P > 0.05). The incidence of target lesions in STMEI patients was mainly left anterior descending coronary artery (LAD) and right coronary artery (RCA). The two scores were not meaningful for predicting target lesions (P > 0.05). For the severity of coronary lesions, there was positive correlation between CHADS₂ score with Gensini score (P < 0.05), but no exact correlation between CHA₂DS₂-VASc score and Gensini score (P > 0.05). The stratifications of CHADS₂ score and CHA₂DS₂-VASc score were significantly associated with hospitalization time and adverse events during hospitalization (P < 0.05). The high score group had longer hospitalization time and more AEs during hospitalization than the low score group and the middle group statistically (P < 0.05).

CHADS₂ score had a certain value to predict the severity of coronary lesion and the presence of left main coronary artery in STEMI. The CHA₂DS₂-VASc score had no predictive ability to do it. There was no significant value in predicting the number of coronary lesions and the location of the target lesions in STEMI patients. However, both scores had the predictive ability for patient hospitalization and AEs during hospitalization.