FACTOID # 54: The Mall in Washington, D.C. is 1.4 times larger than Vatican City.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     

  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

Encyclopedia > Cardiac pump

A cardiac pump or cardiac bypass pump or heart-lung machine temporarily takes over the function of breathing and pumping blood for a patient. For the play Breath by Samuel Beckett, see Breath (play). ... Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ...


It generally has two parts, the pump and the oxygenator. Sheep drinking near a pump A pump is a mechanical device used to move liquids or gases. ...


The pump is usually several motor-driven rollers that peristaltically massage a tube made of silicone rubber. The massage pushes the blood through the tubing. This is commonly referred to as a roller pump. Another type of pump is a centrifugal pump. The blood enters a small centrifuge, and propels the blood forward via centrifugal force. The oxygenator varies, but usually is a passage through a silicone-membrane simulated lung known as a true membrane oxygenator. Peristalsis is the process of involuntary wave-like successive muscular contractions by which food is moved through the digestive tract. ... Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ... A laboratory centrifuge tabletop centrifuge A centrifuge is a piece of equipment that puts a substance in circular motion in order for the centrifugal force to separate a fluid from a fluid or from a solid substance. ...


Cardiac pumps are most often used in heart surgery, so that a patient's heart can be disconnected from the body for longer than the twenty minutes or so it takes a prepared patient to die. Although unprepared patients get brain damage in three to four minutes, a patient can be prepared by cooling and drugs so that no damage will occur for twenty minutes or more. Cardiac surgery is surgery on the heart, typically to correct congenital heart disease or the complications of ischaemic heart disease or valve problems caused by endocarditis. ... The heart and lungs (from an older edition of Grays Anatomy) The heart (Latin cor) is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions. ... Brain damage or brain injury is the destruction or degeneration of brain cells. ...


The perfusionist opearates the heart-lung machine. A Perfusionist (also known as a Clinical Perfusionist) is a person who primarily operates the heart-lung machine during cardiac surgery. ...


Cardiac pumps are also sometimes used to keep babies with birth defects alive, or to aerate bodies with transplantable organs.


Chronic use of cardiac pumps is contraindicated because the pressure profile of most practical pumps is believed to cause circulatory damage to the brain, especially in extended use. The pumps generate continuous pressure. When this pressure is set high enough to aerate tissues in the foot, it can easily damage tissue in the brain. Likewise, if set low enough to avoid damaging the brain, it often under-aerates some part of the body, such as the feet.


In France, emergency medical teams (SAMU) use a different kind of portable cardiac pump which stimulates blood circulation by suction. This is used primarily for treating heart attack victims. A brazilian ambulance with a SAMU marking SAMU (Service dAide Médicale dUrgence, Emergency Medical Assistance Service) is the French hospital based emergency medical service. ...


Russell M. Nelson worked on the team that developed the first heart-lung machine. Russell M. Nelson Russell Marion Nelson is a member of the Quorum of the Twelve Apostles, one of the governing bodies of The Church of Jesus Christ of Latter-Day Saints. ...


Dr. John H. Gibbon Jr. perfected the first truly practical heart-lung bypass machine and performed the first successful surgery with it in May 1953 in Philadelphia.


See also life support, advanced cardiac life support, artificial heart. Life support, in the medical field, refers to a set of therapies for preserving a patients life when essential body systems are not functioning sufficiently to sustain life unaided. ... Advanced cardiac life support (ACLS) is a detailed medical protocol for the provision of lifesaving cardiac care in settings ranging from the pre-hospital environment to the hospital setting. ... An artificial heart is a device that is implanted into the body to replace the original biological heart. ...


External links

  • History and Use

  Results from FactBites:
 
Coronary Angioplasty - Percutaneous Transluminal Coronary Angioplasty (PTCA)- The Doctors Lounge(TM) (0 words)
Cardiac pumps are most often used in heart surgery, so that a patient's heart can be disconnected from the body for longer than the twenty minutes or so it takes a prepared patient to die.
Cardiac pumps are also sometimes used to keep babies with birth defects alive, or to aerate bodies with transplantable organs.
Chronic use of cardiac pumps is contraindicated because the pressure profile of most practical pumps is believed to cause circulatory damage to the brain, especially in extended use.
  More results at FactBites »


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.