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Article: Transient Giant R-Wave, Right Axis Deviation, and Intraventricular Conduction Delay during Exercise Treadmill Testing: A Case Report

TitleTransient Giant R-Wave, Right Axis Deviation, and Intraventricular Conduction Delay during Exercise Treadmill Testing: A Case Report
Authors
KeywordsAcute myocardial infarction
Giant R wave
Intraventricular conduction delay
Variant angina
Issue Date2004
PublisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jelectrocard
Citation
Journal Of Electrocardiology, 2004, v. 37 n. 1, p. 61-66 How to Cite?
AbstractA 53-year-old man complained of chest pain during an exercise treadmill test. Electrocardiogram revealed transient giant R-wave, right-axis deviation, intraventricular conduction delay, and ST-segment elevation in the inferolateral leads. Subsequent coronary angiography showed an 80% lesion in mid part of a nondominant left circumflex artery, whereas the other coronary arteries had mild atherosclerosis only. Percutaneous coronary intervention and stenting was performed on the left circumflex artery lesion. A follow-up exercise thallium scan 3 months later still showed an intermediate-sized, mild reversible perfusion defect in the inferior and lateral wall but the giant R-wave ECG pattern was not inducible anymore. Restudy coronary angiography showed no in-stent restenosis, but there was disease progression in the midpart of the right coronary artery. The initial electrocardiographic pattern is typical of the "giant R-wave syndrome." Severe coronary spasm superimposed on the underlying mild atherosclerotic lesion of the right coronary artery is hypothesized to be the cause of the initial event. Ad hoc direct stenting was performed on the right coronary artery lesion. The patient remained symptom-free with a normal thallium scan 9 months later.
Persistent Identifierhttp://hdl.handle.net/10722/162757
ISSN
2023 Impact Factor: 1.3
2023 SCImago Journal Rankings: 0.435
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJim, MHen_US
dc.contributor.authorSiu, CWen_US
dc.contributor.authorLee, SWLen_US
dc.contributor.authorLam, Len_US
dc.contributor.authorChan, RHWen_US
dc.date.accessioned2012-09-05T05:23:07Z-
dc.date.available2012-09-05T05:23:07Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Electrocardiology, 2004, v. 37 n. 1, p. 61-66en_US
dc.identifier.issn0022-0736en_US
dc.identifier.urihttp://hdl.handle.net/10722/162757-
dc.description.abstractA 53-year-old man complained of chest pain during an exercise treadmill test. Electrocardiogram revealed transient giant R-wave, right-axis deviation, intraventricular conduction delay, and ST-segment elevation in the inferolateral leads. Subsequent coronary angiography showed an 80% lesion in mid part of a nondominant left circumflex artery, whereas the other coronary arteries had mild atherosclerosis only. Percutaneous coronary intervention and stenting was performed on the left circumflex artery lesion. A follow-up exercise thallium scan 3 months later still showed an intermediate-sized, mild reversible perfusion defect in the inferior and lateral wall but the giant R-wave ECG pattern was not inducible anymore. Restudy coronary angiography showed no in-stent restenosis, but there was disease progression in the midpart of the right coronary artery. The initial electrocardiographic pattern is typical of the "giant R-wave syndrome." Severe coronary spasm superimposed on the underlying mild atherosclerotic lesion of the right coronary artery is hypothesized to be the cause of the initial event. Ad hoc direct stenting was performed on the right coronary artery lesion. The patient remained symptom-free with a normal thallium scan 9 months later.en_US
dc.languageengen_US
dc.publisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jelectrocarden_US
dc.relation.ispartofJournal of Electrocardiologyen_US
dc.subjectAcute myocardial infarction-
dc.subjectGiant R wave-
dc.subjectIntraventricular conduction delay-
dc.subjectVariant angina-
dc.subject.meshAngina Pectoris, Variant - Diagnosis - Physiopathology - Therapyen_US
dc.subject.meshAngioplasty, Balloon, Coronaryen_US
dc.subject.meshElectrocardiographyen_US
dc.subject.meshExercise Testen_US
dc.subject.meshHeart Conduction System - Physiopathologyen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.titleTransient Giant R-Wave, Right Axis Deviation, and Intraventricular Conduction Delay during Exercise Treadmill Testing: A Case Reporten_US
dc.typeArticleen_US
dc.identifier.emailSiu, CW:cwdsiu@hkucc.hku.hken_US
dc.identifier.authoritySiu, CW=rp00534en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.jelectrocard.2003.10.010en_US
dc.identifier.pmid15132371-
dc.identifier.scopuseid_2-s2.0-0842349559en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0842349559&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume37en_US
dc.identifier.issue1en_US
dc.identifier.spage61en_US
dc.identifier.epage66en_US
dc.identifier.isiWOS:000188778400009-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridJim, MH=6603860344en_US
dc.identifier.scopusauthoridSiu, CW=7006550690en_US
dc.identifier.scopusauthoridLee, SWL=7601396808en_US
dc.identifier.scopusauthoridLam, L=36933270800en_US
dc.identifier.scopusauthoridChan, RHW=7403110832en_US
dc.identifier.issnl0022-0736-

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