Document Detail

Does coronary artery size really matter?
MedLine Citation:
PMID:  15966932     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate ischemia in right ventricle (RV) in patients with small caliber of right coronary artery (RCA). PATIENTS AND METHODS: The study population consisted of 60 consecutive patients undergoing coronary angiography within 3 months. The patients were divided into three different groups according to lumen diameter of RCA and coronary dominance. Group 1, 2, and 3 consisted of patients with small diameter of RCA, dominant RCA, and dominant circumflex artery, respectively. RV ischemia was assessed by using pulse-wave tissue Doppler sampling obtained from RV free wall close to the lateral tricuspid annulus at the apical four-chamber view during dobutamine stress echocardiography (DSE). RESULTS: When the mean systolic velocity percentages of increase from low to peak dose dobutamine in patients with small RCA were compared to those of other groups, statistically significant difference was found between group 1 and the other groups (P = 0.007 for group 1 vs group 2; P = 0.01 for group 1 vs group 3). The mean systolic velocity at peak dobutamine dose of patients with small caliber of right coronary artery was statistically lower than the other groups (P = 0.001 for group 1 vs group 2, P < 0.001 group 1 vs group 3). CONCLUSIONS: There are a group of patients with small diameter of RCA causing probable ischemia in RV and small caliber of RCA can really matter in these patients.
Turgay Celik; Atila Iyisoy; Hurkan Kursaklioglu; Sedat Kose; Selim Kilic; Basri Amasyali; Ersoy Isik
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  22     ISSN:  0742-2822     ISO Abbreviation:  Echocardiography     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-06-21     Completed Date:  2005-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  479-86     Citation Subset:  IM    
Department of Cardiology, Gulhane Military Medical Academy, School of Medicine, Etlik, Ankara, Turkey.
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MeSH Terms
Analysis of Variance
Blood Flow Velocity
Chi-Square Distribution
Coronary Angiography
Coronary Vessel Anomalies / physiopathology,  ultrasonography*
Echocardiography, Doppler, Pulsed*
Echocardiography, Stress*
Middle Aged
Myocardial Ischemia / physiopathology,  ultrasonography*
Statistics, Nonparametric

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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