AIMS: The aim of this article was to assess whether abnormal @entity452 stress echocardiography (DSE) can be due to a @entity452 -induced @entity3361 in @entity1 with angiographically documented vasospastic coronary arteries. METHODS AND RESULTS: Between January 2004 and April 2008, we prospectively evaluated all @entity1 with known or suspected @entity453 ( @entity453 ) referred to the echocardiography laboratory for @entity452 stress tests (6061 examinations). Those with abnormal DSE underwent coronary angiogram with a systematic @entity29484 intracoronary injection in the case of absence of significant @entity3979 or spontaneous occlusive @entity3361 . @entity1 who had spontaneous occlusive @entity3361 or positive @entity29484 test, but no significant stenoses, were ultimately included in this study. About 581 @entity1 had abnormal DSE, among them only 20 (3.4%) fulfilled the inclusion criteria. There were 15 males and 5 females, and mean age was 64.35 years (range 52-85); 8 @entity1 had a known history of @entity453 and all of them had at least two established cardiovascular risk factors. The culprit vessel was the left anterior descending artery in 10 cases (50%), right coronary artery in 8 cases (40%), and left circumflex in 2 cases (10%). There was a systematic correspondence between the culprit arteries and @entity452 -induced wall motion abnormality territories. No complications occurred during examination or during the provocation test. All the @entity1 were discharged with a @entity460 channel blocker and were doing well after 13 months of mean follow-up. CONCLUSION: @entity3361 can be induced at DSE, but is a rare finding; it could, though, be clinically relevant as it may partly explain some erroneously labelled 'false-positive' examinations. @entity29484 provocation test is a safe and advisable approach in such situations.

@entity3361 and XXXX stress echocardiography.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity452 :: ('MESH:D004280', 'Chemical') :: ['dobutamine'] @entity29484 :: ('MESH:D008755', 'Chemical') :: ['methylergometrine', 'Methylergometrine'] @entity3361 :: ('MESH:D003329', 'Disease') :: ['Coronary artery spasm', 'coronary spasm'] @entity3979 :: ('MESH:D023921', 'Disease') :: ['coronary stenosis'] @entity460 :: ('MESH:D002118', 'Chemical') :: ['calcium'] @entity453 :: ('MESH:D003324', 'Disease') :: ['CAD', 'coronary artery disease']
@entity452 :: (MESH:D004280,Chemical) :: ['dobutamine']
