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Copyright of Chinese Journal of Arteriosclerosis is the property of Chinese Journal of Arteriosclerosis Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northeastern University (Natural Science) is the property of Dongbei Daxue Xuebao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To explore the risk factors of malignant ventricular arrhythmia in patients with acute myocardial infarction (AMI) and analyze the value of QRS-T angle in its diagnosis. Methods: The clinical data of 120 patients with acute myocardial infarction who were admitted to our hospital from August 2015 to August 2019 were analyzed retrospectively, among them, the patients with malignant ventricular arrhythmia served as the study group (n=42), the patients without malignant ventricular arrhythmia served as the control group (n=78), single factor and multiple factor Logistic regression were used to analyze the risk factors of AMI with malignant ventricular arrhythmia, and the diagnostic value of qrs-t angle in AMI with malignant ventricular arrhythmia were analyzed. Results: 42 of 120 patients were complicated with malignant ventricular arrhythmia, the incidence was 35.00%. Logistic regression analysis showed that age≥ 70 years old, hypokalemia, Killip> grade II, troponin I (TnI)≥ 12 ng/mL, left ventricular ejection fraction (LVEF) <50%, inferior posterior wall myocardial infarction, sinus rhythm RR interval standard deviation (SDNN)≥ 90ms, QRS-T angle>90° were risk factors for malignant ventricular arrhythmia in AMI patients (P<0.05). QRS-T angle>90° was the risk factor for malignant ventricular arrhythmia in AMI patients The sensitivity, specificity and accuracy were 83.33% (35/42), 93.59% (73/78) and 90.00% (108/120) respectively. Conclusion: Age≥ 70 years old, hypokalemia, Killip grade>II, TnI≥ 12ng/mL, LVEF<50%, inferior posterior wall myocardial infarction, SDNN≥ 90ms, QRS-T angle >90° are the risk factors of malignant ventricular arrhythmia in AMI patients. QRS-T angle>90° has a good diagnostic value for malignant ventricular arrhythmia in AMI patients. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)