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Date Published: 08/01/2022
Abstract Views: 301
Views PDF: 207
DOI: https://doi.org/10.51298/vmj.v508i2.1659
Issue
Vol. 508 No. 2 (2021)
Section
Các bài báo
How to Cite
Thị Huê, H. ., & Song Giang, T. . (2022). THE VALUE OF CHAPMAN’S SIGN IN THE DIAGNOSIS OF ACUTE MYOCARDIAL INFARCTION IN PATIENTS WITH COMPLETE LEFT BUNDLE BRANCH BLOCK. Vietnam Medical Journal, 508(2). https://doi.org/10.51298/vmj.v508i2.1659

THE VALUE OF CHAPMAN'S SIGN IN THE DIAGNOSIS OF ACUTE MYOCARDIAL INFARCTION IN PATIENTS WITH COMPLETE LEFT BUNDLE BRANCH BLOCK

Hà Thị Huê1,, Trần Song Giang2
1 Hanoi Medical University
2 Bach Mai Hospital

Main Article Content

Abstract

Objectives: To study the value of Chapman's sign in the diagnosis of acute myocardial  infarction in patients with complete left bundle branch block. Methods: The study was     conducted on 150 patients with EKG of LBBB satisfying the selection criteria at the Cardiology Institute, Bach Mai hospital in which 79 patients were diagnosed with MI and 71 patients were not diagnosed. diagnose MI. After finding out the prevalence of electrocardiographic signs in the setting of MI with LBBB, we continue evaluate the diagnostic value of Chapman's sign compared with other criteria. Results: Chapman's sign is a common ECG sign in patients with LBBB (42%). This sign has a sensitivity of 39.2%, a specificity of 54.9%, a positive predictive value of 49.2% and a negative predictive value of 44.8% in the diagnosis of MI with LBBB. When combined with cardiac enzymes, it improves the sensitivity by 100% but reduces the specificity in diagnosis (47.9 - 49.3%). When combined with echocardiography, it improves sensitivity (67.1 – 74.7%) and good specificity (97.2%). Conclusion: Chapman's sign is more common than other signs on ECG in patients with MI with LBBB. The diagnostic value of this sign is not high. Should combine with clinical information, cardiac enzymes, echocardiography will improve diagnostic ability.

Article Details

Keywords

Chapman’s sign, myocardial infarction, branch block

References

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