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Entire process of electrocardiogram recording of Wellens syndrome: A case report
BACKGROUND: Wellens syndrome is an electrocardiogram (ECG) pattern seen in high-risk patients with unstable angina pectoris. It is characterized by inverted or biphasic T-waves that change into positive or pseudo-normalized waves at precordial leads when the patient experiences an angina attack; how...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Baishideng Publishing Group Inc
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9294889/ https://www.ncbi.nlm.nih.gov/pubmed/35979282 http://dx.doi.org/10.12998/wjcc.v10.i19.6672 |
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author | Tang, Na Li, Yi-Hua Kang, Liang Li, Rong Chu, Qing-Min |
author_facet | Tang, Na Li, Yi-Hua Kang, Liang Li, Rong Chu, Qing-Min |
author_sort | Tang, Na |
collection | PubMed |
description | BACKGROUND: Wellens syndrome is an electrocardiogram (ECG) pattern seen in high-risk patients with unstable angina pectoris. It is characterized by inverted or biphasic T-waves that change into positive or pseudo-normalized waves at precordial leads when the patient experiences an angina attack; however, the mechanism for this condition remains unclear. CASE SUMMARY: A 47-year-old male patient experienced repeated, unprovoked episodes of chest pain for > 20 d, with worsening during the previous day. On the day of admission, he experienced episodes of paroxysmal chest pain lasting more than 30 min, in addition to radiating pain to the left arm and exertional dyspnea. The patient presented to the emergency department with no chest pain or other discomfort at that time. ECG at presentation showed sinus tachycardia and T-wave changes, which were identified as Wellens syndrome when combined with previous ECG findings. ECGs and myocardial enzymology examinations were normal when angina was present, but the ECG showed inverted or biphasic T-waves when angina was absent. After percutaneous coronary intervention, the ECGs demonstrated inverted or biphasic T-waves in the anterior precordial leads on days 0, 1, and 2, but normal T-waves on day 3. The ECGs showed no subsequent ischemic ST-T-wave changes. CONCLUSION: The Wellens syndrome pseudo-normalized T-waves likely reflect development of unstable angina pectoris into the hyperacute phase of ST-segment elevation myocardial infarction. |
format | Online Article Text |
id | pubmed-9294889 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Baishideng Publishing Group Inc |
record_format | MEDLINE/PubMed |
spelling | pubmed-92948892022-08-16 Entire process of electrocardiogram recording of Wellens syndrome: A case report Tang, Na Li, Yi-Hua Kang, Liang Li, Rong Chu, Qing-Min World J Clin Cases Case Report BACKGROUND: Wellens syndrome is an electrocardiogram (ECG) pattern seen in high-risk patients with unstable angina pectoris. It is characterized by inverted or biphasic T-waves that change into positive or pseudo-normalized waves at precordial leads when the patient experiences an angina attack; however, the mechanism for this condition remains unclear. CASE SUMMARY: A 47-year-old male patient experienced repeated, unprovoked episodes of chest pain for > 20 d, with worsening during the previous day. On the day of admission, he experienced episodes of paroxysmal chest pain lasting more than 30 min, in addition to radiating pain to the left arm and exertional dyspnea. The patient presented to the emergency department with no chest pain or other discomfort at that time. ECG at presentation showed sinus tachycardia and T-wave changes, which were identified as Wellens syndrome when combined with previous ECG findings. ECGs and myocardial enzymology examinations were normal when angina was present, but the ECG showed inverted or biphasic T-waves when angina was absent. After percutaneous coronary intervention, the ECGs demonstrated inverted or biphasic T-waves in the anterior precordial leads on days 0, 1, and 2, but normal T-waves on day 3. The ECGs showed no subsequent ischemic ST-T-wave changes. CONCLUSION: The Wellens syndrome pseudo-normalized T-waves likely reflect development of unstable angina pectoris into the hyperacute phase of ST-segment elevation myocardial infarction. Baishideng Publishing Group Inc 2022-07-06 2022-07-06 /pmc/articles/PMC9294889/ /pubmed/35979282 http://dx.doi.org/10.12998/wjcc.v10.i19.6672 Text en ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved. https://creativecommons.org/licenses/by-nc/4.0/This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. |
spellingShingle | Case Report Tang, Na Li, Yi-Hua Kang, Liang Li, Rong Chu, Qing-Min Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title | Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title_full | Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title_fullStr | Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title_full_unstemmed | Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title_short | Entire process of electrocardiogram recording of Wellens syndrome: A case report |
title_sort | entire process of electrocardiogram recording of wellens syndrome: a case report |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9294889/ https://www.ncbi.nlm.nih.gov/pubmed/35979282 http://dx.doi.org/10.12998/wjcc.v10.i19.6672 |
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