Prognostic significance of ST-segment elevation during dobutamine stress echocardiography

Incidence, Pathophysiology, and Treatment of Complications During Dobutamine-Atropine Stress Echocardiography

“…[92][93][94][95][96][97] Le diagnostic de spasme coronaire ne peut être définitivement porté qu'après réalisation d'une coronarographie avec épreuve de provocation par l'ergonovine, l'acétylcholine ou la dobutamine.…”

“…ST-segment elevation in noninfarct leads has also been linked to transmural myocardial ischemia due to severe CAD. [92][93][94][95][96][97] The final diagnosis of coronary spasm can only be confirmed on coronary angiography with ergonovine, acetylcholine, or dobutamine provocation. 85,87 Treatment Sublingual nitroglycerin should be administered first rather than ␤-blocking agents 83,84 because of a small risk of exacerbation of spasm with a ␤-blocker.…”

ST-Segment Elevation during Dobutamine Stress Echocardiography in a Patient with Normal Coronary Arteries

“…DSE has been shown to be a safe procedure for routine use [1]. However, rare cases of STelevation myocardial infarction have been described, with cases involving significant luminal stenosis on angiography and in those without evidence of obstructive CAD [11,[13][14][15][16][17][18], the latter being a more rare event. In addition to increasing myocardial oxygen demand by its activity at the β1 receptor and increase in heart rate, dobutamine may also potentially induce coronary artery vasospasm.…”

“…Within the subset of myocardial infarction events, there have been extremely rare cases in the literature of transmural myocardial infarction with development of ST-segment elevation, occurring in about 0.1% of reported cases [3,[9][10][11]. ST-segment elevation during DSE has been commonly associated with significant luminal stenosis and subsequent coronary artery disease [9,[12][13][14][15]. ST-segment elevation without evidence of critical luminal lesions is a significantly uncommon event [13].…”

Coronary Spasm during the Dobutamine Stress Echocardiography

“…O s u p r a d e s n i v e l a m e n t o d o s e g m e n t o S T n o eletrocardiograma durante a ecocardiografia sob estresse com dobutamina é um achado incomum (< 3%), sendo explicada na maioria das vezes por discinesia de área fibrótica ou isquemia transmural por coronariopatia obstrutiva grave. O supradesnivelamento de ST é um evento muito raro em paciente sem coronariopatia obstrutiva significativa 4 .…”