| Strain rate imaging pre- and post-percutaneous coronary intervention: a potential role in the objective detection of ischaemia in exercise stress echocardiography. | |
| | |
MedLine Citation:
|
PMID: 18296398 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
AIMS: To determine the feasibility of strain rate imaging (SRI) in the objective detection of exercise-induced ischaemia. METHODS AND RESULTS: Sixteen patients undergoing elective percutaneous coronary intervention (PCI) underwent treadmill exercise stress echocardiography (ESE) pre- and post-PCI. Measurement of systolic SRI parameters was attempted in all myocardial segments at baseline, peak stress, and in recovery. Segments were divided into those supplied by target (Group 1) and non-target vessels (Group 2). Percutaneous coronary intervention was successful in all patients. In Group 1, there was no significant difference in post-systolic strain rate (SRps) at baseline or at peak stress but there was significantly greater SRps pre-PCI compared with post-PCI at 30 min into recovery (-0.37 +/- 0.53 vs. -0.07 +/- 0.44 s(-1), P = 0.004). There were similar findings with the SRps index [ratio of SRps:peak systolic strain rate (SRsys)]. Group 2 segments did not demonstrate any significant differences in SRI parameters pre- and post-PCI. At peak exercise pre-PCI, Group 1 segments had significantly delayed time to SRsys compared with Group 2 (0.12 +/- 0.05 vs. 0.09 +/- 0.05 s, P = 0.013), a difference that was abolished post-PCI. CONCLUSION: This suggests a potential role for SRI in the objective detection of exercise-induced ischaemia by echocardiography at peak stress and during recovery at the time of improved image quality. |
| | |
Authors:
|
J Thambyrajah; K Vijayalakshmi; R J Graham; A J Turley; M A de Belder; M J Stewart |
Related Documents
:
|
3872588 - Septal q wave in exercise testing: evaluation by single-photon emission computed tomogr... 7588938 - Assessment of systolic wall thickening using technetium-99m methoxyisobutylisonitrile i... 12794628 - The impact of adjunctive adenosine infusion during exercise myocardial perfusion imagin... 8113888 - Whole-body imaging of thallium-201 after six different stress regimens. 2048818 - Influence of progressive and of transient hypoxia on upper airway resistance in normal ... 1984348 - The effect of exercise on food intake in men and women. |
Publication Detail:
|
Type: Comparative Study; Journal Article Date: 2008-02-12 |
Journal Detail:
|
Title: European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology Volume: 9 ISSN: 1532-2114 ISO Abbreviation: Eur J Echocardiogr Publication Date: 2008 Sep |
Date Detail:
|
Created Date: 2008-08-21 Completed Date: 2008-12-31 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 100890618 Medline TA: Eur J Echocardiogr Country: England |
Other Details:
|
Languages: eng Pagination: 646-54 Citation Subset: IM |
Affiliation:
|
Cardiothoracic Division, The James Cook University Hospital, Middlesbrough TS4 3BW, UK. jeet.thambyrajah@stees.nhs.uk |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Angioplasty, Transluminal, Percutaneous Coronary* Echocardiography, Stress* Exercise Test* Exercise Tolerance* Feasibility Studies Female Humans Male Middle Aged Myocardial Ischemia / therapy*, ultrasonography* Systole Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Quadricuspid aortic valve associated with unruptured sinus of Valsalva aneurysm.
Next Document: Quantification of right ventricular function in acute pulmonary embolism: relation to extent of pulm...