Electrocardiographic left axis deviation: Does it have a relationship with inferolateral perfusion defects?

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dc.authorscopusid7006097701
dc.authorscopusid7005722551
dc.authorscopusid6603342072
dc.authorscopusid6507772792
dc.authorscopusid7004571678
dc.contributor.authorErdogan O.
dc.contributor.authorAltun A.
dc.contributor.authorGul C.
dc.contributor.authorDurmus-Altun G.
dc.contributor.authorOzbay G.
dc.date.accessioned2024-06-12T10:28:32Z
dc.date.available2024-06-12T10:28:32Z
dc.date.issued2003
dc.description.abstractIsolated reversible inferolateral perfusion defect is usually considered as true defect and not associated with false positive results due to attenuation artifact or technical processing. In order to investigate the diagnostic value of inferolateral reversible perfusion defect in predicting significant coronary artery stenosis we undertook a clinical study. We retrospectively and prospectively collected records of patients who underwent coronary angiography and demonstrated inferolateral reversible perfusion defect (n=21). Patients were divided into two groups according to presence or absence of significant CAD. Both groups were also compared according to their clinical characteristics, electrocardiographic QRS axis deviation and risk factors. Only 7 (33 %) patients had significant coronary artery disease (CAD) involvement. Left circumflex artery stenosis was detected in 6 (86 %) of 7 patients with CAD. Patients with CAD complained of anginal chest pain (86%) more frequently than patients without CAD (64%) (p=0.314). Since all patients with CAD had at least two-coronary risk factors, it determined the association of CAD with inferolateral reversible perfusion defect (p=0.015). It showed 100% sensitivity and negative predictive value for predicting CAD. Abnormal leftward mean QRS axis deviation on surface ECG was detected in 19 out of 21 study subjects (90%). Predicting CAD involvement in a patient with inferolateral reversible perfusion defect is more accurately established when the patient has multiple coronary risk factors. Leftward mean QRS axis deviation causing a change in heart position may cause a shift of usually observed inferior diaphragmatic attenuation to the inferolateral region and be responsible for reversible perfusion defects.en_US
dc.identifier.endpage163en_US
dc.identifier.issn1128-4293
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-1642291705en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage159en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14551/17270
dc.identifier.volume5en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofMediterranean Journal of Pacing and Electrophysiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectArtifact; Inferolateral Perfusion Defect; Ischemia; Left Axisen_US
dc.subjectAdult; Aged; Angina Pectoris; Angiocardiography; Article; Clinical Feature; Controlled Study; Coronary Artery Circumflex Branch; Coronary Artery Disease; Coronary Artery Obstruction; Coronary Risk; Diagnostic Accuracy; Diagnostic Value; Diaphragm; Disease Association; Ecg Abnormality; Exercise Test; Female; Heart Muscle Perfusion; Human; Information Processing; Major Clinical Study; Male; Medical Record; Prediction; Qrs Complex; Sensitivity Analysis; Single Photon Emission Computer Tomographyen_US
dc.titleElectrocardiographic left axis deviation: Does it have a relationship with inferolateral perfusion defects?en_US
dc.typeArticleen_US

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