BACKGROUND Our study compares the effect of acute proximal stenosis of a coronary artery supplying a myocardial perfusion bed with that of stenosis of an adjacent artery resulting in collateral flow diversion supplied by the same perfusion bed. These alterations in coronary physiology were quantified by digital angiographic impulse response analysis of contrast material mean transit time for th...

The purpose of this study was to determine the coronary microvascular sites of autoregulation. The epimyocardial coronary microcirculation was observed through an intravital microscope by stroboscopic epi-illumination in anesthetized open-chest dogs (n = 20). Aortic pressure and heart rate were held constant by an aortic snare and atrial pacing, respectively. Distal pressure of the left anterio...

Coronary artery fistula (CAF) with giant aneurysm and accompanied by coronary artery stenosis is a very rare disease. Herein, we report a case of a 76-year-old woman having a complex coronary-to-pulmonary artery fistula associated with a giant aneurysm and accompanied by coronary artery stenosis. The patient was successfully treated using transcatheter coil embolization and coronary stent impla...

background: paraoxonase-1(pon1), a high-density lipoprotein (hdl) associated enzyme, is believed to contribute in the patho­genesis of coronary artery disease (cad). the aim of this study was to evaluate the association of pon1 promoter c (-107)t polymorphism with the extent of coronary artery stenosis in iranian patients. methods : the rflp analysis for determination of the c(-107)t genotype d...

OBJECTIVE Preprocedural levels of C-reactive protein predict mid-term mortality after percutaneous coronary intervention for the treatment of unprotected left main coronary artery stenosis. However, there are no data regarding the impact of C-reactive protein on mid-term mortality in patients with unprotected left main coronary artery stenosis treated with coronary artery bypass graft. METHOD...

abstract      background and objective: diabetes mellitus is the most common risk factor for coronary artery disease (cad). cholesteryl ester transfer protein (cetp) taqib polymorphism is associated with changes in lipid profile and may be a risk factor for cad in patients with diabetes. this study aimed to evaluate the association of cetp taqib polymorphism with cad in patients with type 2 dia...

Objective: Coronary angiography data included in the analysis of operative mortality after coronary artery surgery are generally limited to left main coronary artery stenosis and classi®cation into one-, twoor three-vessel disease, but the role of stenoses and quality of distal runoff on each main coronary artery have never been analysed. The aim of this study was to assess the in ̄uence of coro...

OBJECTIVE The findings of magnetic resonance and x-ray angiography were compared for assessment of coronary artery stenosis in this validation study. BACKGROUND Magnetic resonance angiography of the coronary arteries has recently been described, but there has been no comparison with x-ray angiography of localisation or assessment of important characteristics of coronary stenosis. METHODS A ...