ST-segment elevation during Dobutamine stress-ECG: Echocardiographic and angiographic correlates

Masoor Kamalesh, Krishnaswamy Chandrasekaran, Eliot Schechter, Chittur Sivaram, Udho Thadani

Research output: Contribution to journalArticle

Abstract

Purpose: Prevalence of abnormal ST-segment elevation during exercise stress, when the baseline ECG does not show diagnostic Q waves, is quoted to be 0.5mm ST↑ during Dobutamine stress (range 0.5-3.0mm; 3 patients had >1mm). Results: ST segment elevation developed in inferior leads in 5 and in inferolateral leads in the remaining patient. Resting echocardiogram was normal in 4 and showed posterior and septal hypokinesis in 2 patients. Akinesis or worsening of hypokinesis developed in inferior or inferoposterior segments during Dobutamine infusion in all 6 patients. Four of the six patients had significant stenosis of the proximal right coronary artery or PDA, distal to the graft site, while one had 25% PDA lesion and the patient with Q wave had occluded graft to the PDA. Two patients who also had severe LAD disease (70% and 90%) did not develop ST elevation in septal leads. Conclusion and clinical implications: 1) The prevalence of ST segment elevation during Dobutamine stress was 5.2%. 2) Similar to exercise testing, ST segment elevation on Dobutamine stress indicates localizing transmural ischemia when the baseline ECG has no diagnostic Q waves. 3) ST segment elevation was only seen in inferior leads and correlated with angiographic RCA lesions.

Original languageEnglish (US)
JournalChest
Volume110
Issue number4 SUPPL.
StatePublished - Oct 1996
Externally publishedYes

Fingerprint

Dobutamine
Electrocardiography
Exercise
Transplants
Coronary Vessels
Pathologic Constriction
Ischemia

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

Kamalesh, M., Chandrasekaran, K., Schechter, E., Sivaram, C., & Thadani, U. (1996). ST-segment elevation during Dobutamine stress-ECG: Echocardiographic and angiographic correlates. Chest, 110(4 SUPPL.).

ST-segment elevation during Dobutamine stress-ECG : Echocardiographic and angiographic correlates. / Kamalesh, Masoor; Chandrasekaran, Krishnaswamy; Schechter, Eliot; Sivaram, Chittur; Thadani, Udho.

In: Chest, Vol. 110, No. 4 SUPPL., 10.1996.

Research output: Contribution to journalArticle

Kamalesh, M, Chandrasekaran, K, Schechter, E, Sivaram, C & Thadani, U 1996, 'ST-segment elevation during Dobutamine stress-ECG: Echocardiographic and angiographic correlates', Chest, vol. 110, no. 4 SUPPL..
Kamalesh M, Chandrasekaran K, Schechter E, Sivaram C, Thadani U. ST-segment elevation during Dobutamine stress-ECG: Echocardiographic and angiographic correlates. Chest. 1996 Oct;110(4 SUPPL.).
Kamalesh, Masoor ; Chandrasekaran, Krishnaswamy ; Schechter, Eliot ; Sivaram, Chittur ; Thadani, Udho. / ST-segment elevation during Dobutamine stress-ECG : Echocardiographic and angiographic correlates. In: Chest. 1996 ; Vol. 110, No. 4 SUPPL.
@article{a7710fbf1e9347c981cf61a65095cdab,
title = "ST-segment elevation during Dobutamine stress-ECG: Echocardiographic and angiographic correlates",
abstract = "Purpose: Prevalence of abnormal ST-segment elevation during exercise stress, when the baseline ECG does not show diagnostic Q waves, is quoted to be 0.5mm ST↑ during Dobutamine stress (range 0.5-3.0mm; 3 patients had >1mm). Results: ST segment elevation developed in inferior leads in 5 and in inferolateral leads in the remaining patient. Resting echocardiogram was normal in 4 and showed posterior and septal hypokinesis in 2 patients. Akinesis or worsening of hypokinesis developed in inferior or inferoposterior segments during Dobutamine infusion in all 6 patients. Four of the six patients had significant stenosis of the proximal right coronary artery or PDA, distal to the graft site, while one had 25{\%} PDA lesion and the patient with Q wave had occluded graft to the PDA. Two patients who also had severe LAD disease (70{\%} and 90{\%}) did not develop ST elevation in septal leads. Conclusion and clinical implications: 1) The prevalence of ST segment elevation during Dobutamine stress was 5.2{\%}. 2) Similar to exercise testing, ST segment elevation on Dobutamine stress indicates localizing transmural ischemia when the baseline ECG has no diagnostic Q waves. 3) ST segment elevation was only seen in inferior leads and correlated with angiographic RCA lesions.",
author = "Masoor Kamalesh and Krishnaswamy Chandrasekaran and Eliot Schechter and Chittur Sivaram and Udho Thadani",
year = "1996",
month = "10",
language = "English (US)",
volume = "110",
journal = "Chest",
issn = "0012-3692",
publisher = "American College of Chest Physicians",
number = "4 SUPPL.",

}

TY - JOUR

T1 - ST-segment elevation during Dobutamine stress-ECG

T2 - Echocardiographic and angiographic correlates

AU - Kamalesh, Masoor

AU - Chandrasekaran, Krishnaswamy

AU - Schechter, Eliot

AU - Sivaram, Chittur

AU - Thadani, Udho

PY - 1996/10

Y1 - 1996/10

N2 - Purpose: Prevalence of abnormal ST-segment elevation during exercise stress, when the baseline ECG does not show diagnostic Q waves, is quoted to be 0.5mm ST↑ during Dobutamine stress (range 0.5-3.0mm; 3 patients had >1mm). Results: ST segment elevation developed in inferior leads in 5 and in inferolateral leads in the remaining patient. Resting echocardiogram was normal in 4 and showed posterior and septal hypokinesis in 2 patients. Akinesis or worsening of hypokinesis developed in inferior or inferoposterior segments during Dobutamine infusion in all 6 patients. Four of the six patients had significant stenosis of the proximal right coronary artery or PDA, distal to the graft site, while one had 25% PDA lesion and the patient with Q wave had occluded graft to the PDA. Two patients who also had severe LAD disease (70% and 90%) did not develop ST elevation in septal leads. Conclusion and clinical implications: 1) The prevalence of ST segment elevation during Dobutamine stress was 5.2%. 2) Similar to exercise testing, ST segment elevation on Dobutamine stress indicates localizing transmural ischemia when the baseline ECG has no diagnostic Q waves. 3) ST segment elevation was only seen in inferior leads and correlated with angiographic RCA lesions.

AB - Purpose: Prevalence of abnormal ST-segment elevation during exercise stress, when the baseline ECG does not show diagnostic Q waves, is quoted to be 0.5mm ST↑ during Dobutamine stress (range 0.5-3.0mm; 3 patients had >1mm). Results: ST segment elevation developed in inferior leads in 5 and in inferolateral leads in the remaining patient. Resting echocardiogram was normal in 4 and showed posterior and septal hypokinesis in 2 patients. Akinesis or worsening of hypokinesis developed in inferior or inferoposterior segments during Dobutamine infusion in all 6 patients. Four of the six patients had significant stenosis of the proximal right coronary artery or PDA, distal to the graft site, while one had 25% PDA lesion and the patient with Q wave had occluded graft to the PDA. Two patients who also had severe LAD disease (70% and 90%) did not develop ST elevation in septal leads. Conclusion and clinical implications: 1) The prevalence of ST segment elevation during Dobutamine stress was 5.2%. 2) Similar to exercise testing, ST segment elevation on Dobutamine stress indicates localizing transmural ischemia when the baseline ECG has no diagnostic Q waves. 3) ST segment elevation was only seen in inferior leads and correlated with angiographic RCA lesions.

UR - http://www.scopus.com/inward/record.url?scp=33750267489&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750267489&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33750267489

VL - 110

JO - Chest

JF - Chest

SN - 0012-3692

IS - 4 SUPPL.

ER -