Hyperaemia

(Redirected from Hyperemia)
Jump to: navigation, search

WikiDoc Resources for

Hyperaemia

Articles

Most recent articles on Hyperaemia

Most cited articles on Hyperaemia

Review articles on Hyperaemia

Articles on Hyperaemia in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Hyperaemia

Images of Hyperaemia

Photos of Hyperaemia

Podcasts & MP3s on Hyperaemia

Videos on Hyperaemia

Evidence Based Medicine

Cochrane Collaboration on Hyperaemia

Bandolier on Hyperaemia

TRIP on Hyperaemia

Clinical Trials

Ongoing Trials on Hyperaemia at Clinical Trials.gov

Trial results on Hyperaemia

Clinical Trials on Hyperaemia at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Hyperaemia

NICE Guidance on Hyperaemia

NHS PRODIGY Guidance

FDA on Hyperaemia

CDC on Hyperaemia

Books

Books on Hyperaemia

News

Hyperaemia in the news

Be alerted to news on Hyperaemia

News trends on Hyperaemia

Commentary

Blogs on Hyperaemia

Definitions

Definitions of Hyperaemia

Patient Resources / Community

Patient resources on Hyperaemia

Discussion groups on Hyperaemia

Patient Handouts on Hyperaemia

Directions to Hospitals Treating Hyperaemia

Risk calculators and risk factors for Hyperaemia

Healthcare Provider Resources

Symptoms of Hyperaemia

Causes & Risk Factors for Hyperaemia

Diagnostic studies for Hyperaemia

Treatment of Hyperaemia

Continuing Medical Education (CME)

CME Programs on Hyperaemia

International

Hyperaemia en Espanol

Hyperaemia en Francais

Business

Hyperaemia in the Marketplace

Patents on Hyperaemia

Experimental / Informatics

List of terms related to Hyperaemia

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Hyperemia describes the increase of blood flow to different tissues in the body. It can have medical implications, but is also a regulatory response, allowing change in blood supply to different tissues through vasodilation. When this occurs in the coronary bed, it is referred to as TIMI grade 4 flow.

Hyperemia and the regulation of blood flow

Functional hyperemia is an increase in blood flow to a tissue due to the presence of metabolites and a change in general conditions. When a tissue increases activity there is a well characterized fall in the partial pressure of oxygen and pH, an increase in partial pressure of carbon dioxide, and a rise in temperature and the concentration of potassium ions. The mechanism for vasodilation is unclear, but it may have something to do with the opening of precapillary sphincters.

Active hyperemia is also a term used to describe dilation of arteriolar smooth muscle to increase blood flow in response to an increase in metabolism. Reactive hyperemia is the same but in response to a profound increase in blood flow to an organ after being occluded. There will be a shortage of oxygen and a build-up of metabolic waste. * Blood flow to the heart becomes hyperemic if a balloon is inflated in a coronary artery (reactive hyperemia) and if there is embolism. The hyperemia in the heart is mediated by local adenosine release which can be documented to rise when the coronary sinus is sampled following embolization.


Linked-in.jpg