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Date Published: 24/07/2025
Abstract Views: 200
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DOI: https://doi.org/10.51298/vmj.v552i2.15024
Issue
Vol. 552 No. 2 (2025)
Section
Các bài báo
How to Cite
Trịnh , V. N., Tạ, M. L., Tạ, M. L., Trần, S. G., & Tạ, M. C. (2025). STUDY ON THE MORPHOLOGY OF BRADYCARDIA AND RELATED FACTORS IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION UNDERGOING PERCUTANEOUS CORONARY INTERVENTION. Vietnam Medical Journal, 552(2). https://doi.org/10.51298/vmj.v552i2.15024

STUDY ON THE MORPHOLOGY OF BRADYCARDIA AND RELATED FACTORS IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION UNDERGOING PERCUTANEOUS CORONARY INTERVENTION

Văn Nhị Trịnh , Mạnh Long Tạ, Mạnh Lân Tạ, Song Giang Trần, Mạnh Cường Tạ

Main Article Content

Abstract

Objectives: To evaluate the morphology and clinical characteristics of bradyarrhythmias in patients with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI), and to examine the association between bradyarrhythmias and certain clinical and paraclinical factors.
Methods: A cross-sectional descriptive study was conducted on patients diagnosed with AMI who presented with a heart rate below 60 bpm and underwent PCI. Clinical characteristics, paraclinical findings, and related factors were assessed. Results: Among 51 patients (mean age: 67.2 ± 12.9 years; 76.5% male), sinus bradycardia accounted for 54.9%, complete AV block (third-degree AVB) 25.5%, and first-degree AVB 11.8%. Mean heart rate was 50.7 ± 4.67 bpm. 78.4% were admitted within the first 24 hours. Compared to sinus bradycardia, patients with AV block were older (72.8 ± 10.7 vs. 63.5 ± 13.7 years; p < 0.05), had lower systolic blood pressure (107.4 ± 15.6 vs. 118.4 ± 19.7 mmHg; p < 0.05), and underwent more frequent thrombus aspiration (52.6% vs. 17.9%; p < 0.05). Conclusion: Bradyarrhythmias in AMI patients undergoing PCI frequently occur within the first 24 hours, with sinus bradycardia being the most common form due to RCA occlusion. Bradycardia due to atrioventricular block is more common in the elderly, and the degree of myocardial damage and heart failure is also more severe than in patients with sinus bradycardia.

Article Details

Keywords

bradyarrhythmia, acute myocardial infarction

References

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