PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 3279459

Assessing stenosis severity: coronary flow reserve, collateral function, quantitative coronary arteriography, positron imaging, and digital subtraction angiography. A review and analysis.

L Demer·K L Gould·R Kirkeeide
View original source ↗Export metadata ↓

Abstract

The source did not provide an abstract. Follow the original record for more information.

Explore related subjects

Collateral CirculationCoronary AngiographyCoronary CirculationCoronary DiseaseCoronary VesselsHumansRadiographic Image EnhancementRadionuclide ImagingSubtraction TechniqueJournal ArticleReview

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

L Demer, K L Gould, R Kirkeeide. Assessing stenosis severity: coronary flow reserve, collateral function, quantitative coronary arteriography, positron imaging, and digital subtraction angiography. A review and analysis.. https://doi.org/10.1016/0033-0620(88)90001-1

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

Importance of collateral circulation in coronary heart disease.

AIMS: Collateral arteries are a common but inconsistent finding in coronary heart disease (CHD). We endeavoured to review the methods for coronary artery collateral assessment, the predictors and clinical importance of collateral blood flow, and the potential for therapeutic augmentation of collateral anastomoses. METHODS AND RESULTS: While many methods have been used to assess collateral blood flow only a few have been formally validated. Collateral flow index, as determined by measurement of intra-coronary pressure or flow velocity, is the most robust measure of collateral flow. These techniques have led to important advances in our understanding of collateral artery function. Coronary collateral arteries may prevent myocardial ischaemia in healthy subjects and in patients with CHD. A functional collateral circulation may lead to reduced ischaemia, preservation of ventricular function, and an improved prognosis. Recent trials have demonstrated that vascular progenitor cell therapies may improve ventricular function following acute myocardial infarction, raising the possibility of effective biological treatments to improve myocardial blood flow and prognosis in CHD. CONCLUSIONS: Coronary collateral anastomoses represent a prognostically important adaptive response in patients with CHD. Therapeutic augmentation of collaterals with emerging biological therapies represents a desirable goal for treating CHD patients.

Collateral Circulation↗
PubMed2006

De novo aneurysm formation and regression after brain arteriovenous malformation embolization: case report.

BACKGROUND: The formation of de novo aneurysms is a known complication of vessel occlusion (Wright RL, Sweet WH. Carotid or vertebral occlusion in the treatment of intracranial aneurysms: value of early and late readings of carotid and retinal pressures. Clin Neurosurg 1962:9;163-192). Aneurysms most commonly develop on newly formed primary collateral routes as a result of increased flow through these collaterals. Development of aneurysms is not commonly seen in vessels whose flow has been directly decreased by therapeutic or natural occlusion. CASE DESCRIPTION: A 53-year-old woman with an intracerebral hemorrhage underwent cerebral angiography which demonstrated a right parietal AVM. An enlarged right ACA gave rise to 3 direct feeding pedicles. Leptomeningeal collaterals from the right MCA as well as the right PCA also gave collateral supply to the AVM. The lesion had superficial drainage into the superior sagittal sinus and deep venous drainage into the right posterior pericallosal vein. No feeding artery aneurysms or intranidal aneurysms were present. Treatment plan included preoperative embolization followed by surgical resection. CONCLUSION: To our knowledge, this is the first reported case of a de novo aneurysm forming and regressing in an artery hemodynamically related to an embolized AVM. The short timescale of its development (6 weeks) is also noteworthy. The spontaneous regression suggests that at least some aneurysms forming in vessels after abrupt decrease in distal runoff may have a self-limited course. Such lesions may do best if not subjected to direct endovascular or surgical treatment.

Collateral Circulation↗