Abstract:
:Coronary plaque has a distinct spatial distribution with the peak incidence on the outer wall around the bifurcation of the left main coronary artery. Intravascular ultrasound scanning was used to evaluate the distribution of the plaque in the proximal site of the left anterior descending coronary artery in 16 patients. Coronary angiography showed the examined sites were normal in all patients. A cross-sectional coronary scan was recorded in the left anterior descending coronary artery just distal to the bifurcation using a 4.3 Fr, 30 MHz intravascular ultrasound catheter. The thickness of the plaque was measured at 0, 90, 180, and 270 degrees, where 0 degree indicates the left circumflex coronary artery branching direction. The scan was divided into four areas of 90 degrees and labeled 1 to 4 in the counterclockwise direction (site 1 was the left circumflex coronary artery branching direction). The thickness and area of the plaque were measured in each site. The percentage plaque fraction was calculated as (plaque area in each site)/(plaque area of all) x 100. In 15 (94%) of the 16 patients, images of crescent shaped plaques were obtained. The mean thicknesses of the plaque at sites 1-4 were 0.25 +/- 0.07 mm, 0.46 +/- 0.21 mm, 0.82 +/- 0.19 mm, and 0.42 +/- 0.23 mm, respectively. The mean percentage plaque fractions were 7.9 +/- 3.6% (site 1), 18.1 +/- 7.2% (site 2), 55.0 +/- 8.1% (site 3), 18.7 +/- 6.9% (site 4), respectively. In site 3, opposite to the left circumflex coronary artery branching, the thickness and percentage plaque fraction were significantly greater than the remaining three sites (p < 0.001). In vivo intravascular ultrasound scanning revealed that coronary plaque in angiographically normal left anterior descending coronary artery just distal to the bifurcation has a distinct distribution with a peak incidence opposite to the left circumflex coronary artery branching.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Watanabe H,Yoshikawa J,Yoshida K,Akasaka T,Hozumi T,Takagi T,Honda Y,Okura H,Yamamuro Asubject
Has Abstractpub_date
1995-12-01 00:00:00pages
325-9issue
6eissn
0914-5087issn
1876-4738journal_volume
26pub_type
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2008.02.001
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abstract:OBJECTIVE:We conducted the present study to determine the level of physical activity required to retard the progression of carotid intima-media thickness (IMT) in patients with coronary heart disease (CHD). PATIENTS AND MAIN OUTCOME MEASUREMENTS:The daily walking distance (km/day) of 40 patients with CHD (male/female ...
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journal_title:Journal of cardiology
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doi:
更新日期:1995-03-01 00:00:00
abstract::The spasm provocation tests of ergonovine and acetylcholine have been employed in the cardiac catheterization laboratory. Ergonovine acts through the serotogenic receptors, while acetylcholine acts through the muscarinic cholinergic receptors. Different mediators may have the potential to cause different coronary resp...
journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2016.09.012
更新日期:2017-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2013.06.008
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract::The correlation between the time-course changes in the serum concentration of myosin light chain 1 (ML-1) and left ventricular (LV) function was investigated in 37 patients with initial anterior acute myocardial infarction (AMI) after successful reperfusion. All patients were confirmed to have coronary arteries recana...
journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:
更新日期:1995-07-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract::During ergonovine-induced vasospastic angina, U wave inversion without significant ST segment deviation on the precordial electrocardiograms was documented in four patients. Coronary angiography revealed incomplete spastic obstruction of the left anterior descending artery without delayed filling and runoff in three p...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2019.10.006
更新日期:2020-05-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.03.006
更新日期:2008-08-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract::Relationships between biventricular pressures, left ventricular shape and paradoxical septal motion in patients with right ventricular pressure overload (RVPO) are unknown. To clarify these relationships, we measured left and right ventricular short-axis dimensions and ventricular pressures using anesthetized open-che...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,meta分析
doi:10.1016/j.jjcc.2015.09.009
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:Predictors of left ventricular reverse remodeling (LVRR) and differences in the time taken to achieve LVRR remain unclear. METHODS:We consecutively registered 129 patients with severe cardiomyopathy admitted with heart failure (HF). Patients were followed for a median of 778.0 days (IQ: 457.0, 1078.0). LVRR...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2015.07.021
更新日期:2016-07-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1987-12-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2014.12.023
更新日期:2015-06-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
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更新日期:2017-01-01 00:00:00
abstract::Seventy heterozygous patients with familial hypercholesterolemia (FH), aged 3 to 91 years (37 men and 33 women), from 38 different families were studied to ascertain their clinical profiles including the pattern of distribution of total cholesterol (TC), Achilles tendon thickness (ATT), and a sex difference in age at ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2011.04.003
更新日期:2011-07-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2003-10-01 00:00:00