circulatory arrest

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cir·cu·la·to·ry ar·rest

1. cessation of the circulation of blood as a result of ventricular standstill or fibrillation.
2. intentional cessation of circulation by temporarily stopping cardiopulmonary bypass flow during certain thoracic aortic operations; used with intentional profound total-body hypothermia to protect vital organs.


pertaining to circulation.

circulatory arrest
see cardiac arrest.
circulatory collapse
shock; circulatory insufficiency without congestive heart failure.
circulatory failure
includes cardiac or central circulatory failure and peripheral circulatory failure. Although the mechanisms, causes and clinical syndromes are different the pathogenesis is the same, the circulatory system fails to maintain the supply of oxygen and other nutrients to the tissues and to remove the carbon dioxide and other metabolites from them. The failure may be hypovolemic, distributive.
circulatory response
changes in the cardiac and vascular functions in response to such factors as emotional stress, physical exercise, temperature change.
circulatory shock
see shock.
circulatory support
see extracorporeal circulation.
circulatory system
the major system concerned with the movement of blood and lymph; it consists of the heart and blood vessels. The circulatory system transports to the tissues and organs of the body the oxygen, nutritive substances, immune substances, hormones and chemicals necessary for normal function and activities; it also carries away waste products and carbon dioxide. It helps to regulate body temperature and helps maintain normal water and electrolyte balance.
The rate of blood flow through the vessels depends upon several factors: force of the heartbeat, rate of the heartbeat, venous return and control of the arterioles and capillaries by chemical, neural and thermal stimuli.
References in periodicals archive ?
Totally normothermic aortic arch replacement without circulatory arrest.
Clancy said the benefits seen in this study may result from the drug's ability to scavenge or inhibit the production of oxygen free radicals, tissue-damaging chemicals produced during circulatory arrest.
The combination of Argonne's ice/water-based slurry with BioTime's HetaCool([R]) technology, if further developed, integrated, and brought through human clinical testing may thereby improve outcomes and potentially save lives, which now are forfeited to the consequences of circulatory arrest and trauma.
Designed for both out-of-hospital and in-hospital use, LUCAS is indicated for treatment of adult patients who have acute circulatory arrest defined as absence of spontaneous breathing and pulse, as well as loss of consciousness.
The goal of the BioTime research project is to use HetaCool to increase the time during which a patient may be maintained in hypothermic cardiac and circulatory arrest during surgery.
We are trying to provide surgeons with products that will give them the additional time needed to perform complex surgical procedures that require cardiac and circulatory arrest.
Research on circulatory arrest on children was conducted at the Fuwai Cardiovascular Institute, Beijing, PR China.
Letsou, of the University of Texas Medical Center's Department of Cardiothoracic and Vascular Surgery, presented a series of canine experiments involving the revival and long term survival of dogs after two hours of hypothermic circulatory arrest.
In one set of experiments, replacing all the circulating blood at near-freezing body temperatures allowed recovery even after extended periods of cardiac and circulatory arrest in a variety of animals from rodents to primates.
In surgeries of this type, patients are often chilled to temperatures cold enough to sufficiently reduce their metabolic rate and oxygen needs to a level that will permit periods of cardiac and circulatory arrest necessary for such vascular repairs.
Hal Sternberg, BioTime research vice president, revived five hamsters following extended periods of cardiac and circulatory arrest.
Reperfusion injury can occur after open heart surgery requiring cardiopulmonary bypass and circulatory arrest, organ transplantation, severe trauma or stroke.