The analysis of coronary angiography results in patients with ST-segment depression during paroxysmal supraventricular tachycardia episodes

  AIM   To investigate the influencing factors of coronary angiography results in patients with ST-segment depression during paroxysmal supraventricular tachycardia (PSVT) episodes, and its relationship with ST-segment depression types.

  METHODS  74 patients with ST segment depression during the onset of PSVT and who had undergone intracavitary electrophysiological examination and coronary angiography were selected. According to the results of coronary angiography, they were divided into negative angiography group (n=47) and positive angiography group (n=27). The clinical data, blood biochemical indexes, PSVT type, 10-year risk of atherosclerotic cardiovascular disease (ASCVD) and ST segment depression type were compared between the two groups, and the influencing factors of coronary angiography results were analyzed.

  RESULTS  Compared with the negative group of coronary angiography, the patients in the positive group were older (63 ± 10 vs. 55.2 ± 9, P<0.01), and the proportion of hypertension was higher (48% vs. 15%, P<0.01). The incidence of chest tightness and chest pain was higher (96% vs. 66%, P<0.05), but the incidence of palpitation was significantly lower (82% vs. 98%, P<0.05), and the 10-year risk of ASCVD was significantly higher (P<0.01). There was no significant difference in ST segment depression between the two groups. In univariate analysis, age, palpitation symptoms, chest tightness/chest pain symptoms, hypertension and 10-year ASCVD risk had an impact on the results of coronary angiography. Logistic regression analysis showed that chest tightness/chest pain symptoms (OR=11.437, 95% CI 1.315～99.488, P<0.05) and 10-year ASCVD risk (OR=2.570, 95% CI 1.205～5.481, P<0.05) were independent influencing factors of coronary angiography results.

  CONCLUSION  The shape of ST segment depression during the onset of PSVT has no significant predictive value for the results of coronary angiography. The higher the risk of ASCVD in 10 years, and the patients with chest tightness/chest pain symptoms may have a certain predictive value for coronary angiography.