Document Detail

Persistent regional diastolic dysfunction after myocardial ischemia and the effect of statin treatment: assessment with two-dimensional radial strain rate.
MedLine Citation:
PMID:  20070353     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Persistence of regional diastolic dysfunction after ischemic insult remains debatable. With speckle tracking echocardiography (STE), we sought to (1) prove the persistence of regional diastolic dysfunction, (2) assess the feasibility of applying persistent regional diastolic dysfunction to differentiating ischemic and nonischemic chest pain, and finally (3) examine statin effects on postischemic regional diastolic dysfunction. METHODS: Nineteen patients with variant angina (VA) and 12 normal subjects were enrolled. Comprehensive echocardiographic examinations were performed before and 1 day after coronary angiography (CAG) with ergonovine provocation. Radial systolic (rSRsys) and diastolic (rSRdia) strain rates were obtained and averaged using standard segmentation models corresponding to the three major coronary territories assigned. RESULTS: No significant changes in rSRsys and rSRdia values were observed for controls and in rSRsys for VA. However, rSRdia for VA demonstrated a weak, but significant, decrease from -2.25 +/- 0.71/sec to -2.04 +/- 0.71/sec (P = 0.003) 1 day after CAG. However, because of the wide overlap between rSRdia values in normal and ischemic segments for VA patients, predictability of remote ischemia based solely on the rSRdia was limited. Subgroup analysis according to statin prescription showed that statin administration contributed to the elimination of rSRdia reduction (-2.28 +/- 0.84/sec on pre-CAG vs. -2.29 +/- 0.77/sec on post-CAG, P = 0.72 for patients without statin premedication; -2.23 +/- 0.64/sec for pre-CAG vs. -1.88 +/- 0.65/sec for post-CAG, P = 0.002 for those without). Expectedly, rSRsys values showed no significant changes in all situations. CONCLUSIONS: The presence and sustained nature of regional diastolic dysfunction can be demonstrated with STE. Statin minimized the persistence of regional diastolic dysfunction after an acute ischemia. Although the clinical usefulness of rSRdia by STE appears to be limited, its clinical utility requires further consideration, given the brevity of the ischemia provoked during CAG with ergonovine and the protracted regional diastolic dysfunction.
Hyung-Kwan Kim; Sung-A Chang; Dae-Won Sohn; Dae-Hee Kim; Yong-Jin Kim; Byung-Hee Oh; Young-Bae Park
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Publication Detail:
Type:  Clinical Trial; Journal Article     Date:  2009-01-11
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  27     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-05-21     Completed Date:  2010-09-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  244-52     Citation Subset:  IM    
Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital, Seoul 110-744, Korea.
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MeSH Terms
Angina Pectoris, Variant / ultrasonography*
Exercise Test
Fluorobenzenes / pharmacology*
Heart / drug effects*
Heptanoic Acids / pharmacology*
Hydroxymethylglutaryl-CoA Reductase Inhibitors / pharmacology
Middle Aged
Myocardial Ischemia / ultrasonography*
Pyrimidines / pharmacology*
Pyrroles / pharmacology*
Reference Standards
Sulfonamides / pharmacology*
Ventricular Dysfunction, Left / ultrasonography*
Reg. No./Substance:
0/Fluorobenzenes; 0/Heptanoic Acids; 0/Hydroxymethylglutaryl-CoA Reductase Inhibitors; 0/Pyrimidines; 0/Pyrroles; 0/Sulfonamides; 110862-48-1/atorvastatin; 287714-41-4/rosuvastatin

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