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Medical Cardiology World News

Cardiology-Heart-diagram

Cardiology-Heart-diagram

linedividerCardiology is a medical specialty dealing with disorders of the heart be it human or animal. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists. Physicians who specialize in cardiac surgery are called cardiac surgeons.

As the center focus of cardiology, the heart has numerous anatomical features (e.g., atria, ventricles, heart valves) and numerous physiological features (e.g., systole, heart sounds, afterload) that have been encyclopedically documented for many centuries.

Disorders of the heart lead to heart disease and cardiovascular disease and can lead to a significant number of deaths: cardiovascular disease is the leading cause of death in the last years.

The primary responsibility of the heart is to pump blood throughout the body. It pumps blood from the body — called the systemic circulation — through the lungs — called the pulmonary circulation — and then back out to the body. This means that the heart is connected to and affects the entirety of the body. Simplified, the heart is a circuit of the Circulation. While plenty is known about the healthy heart, the bulk of study in cardiology is in disorders of the heart and restoration, and where possible, of function.

The heart is a muscle that squeezes blood and functions like a pump. Each part of the heart is susceptible to failure or dysfunction and the heart can be divided into the mechanical and the electrical parts.

The electrical part of the heart is centered on the periodic contraction (squeezing) of the muscle cells that is caused by the cardiac pacemaker located in the sinoatrial node. The study of the electrical aspects is a sub-field of electrophysiology called cardiac electrophysiology and is epitomized with the electrocardiogram (ECG/EKG). The action potentials generated in the pacemaker propagate throughout the heart in a specific pattern. The system that carries this potential is called the electrical conduction system. Dysfunction of the electrical system manifests in many ways and may include Wolff–Parkinson–White syndrome, ventricular fibrillation, and heart block.

The mechanical part of the heart is centered on the fluid movement of blood and the functionality of the heart as a pump. The mechanical part is ultimately the purpose of the heart and many of the disorders of the heart disrupt the ability to move blood. Failure to move sufficient blood can result in failure in other organs and may result in death if severe. Heart failure is one condition in which the mechanical properties of the heart have failed or are failing, which means insufficient blood is being circulated.

World health organization says quality of life of homo-sapiens are determined by at least few dozen factors. They are mostly non medical.
Carl William Brown

This is an important and well-done and well-analyzed study. I think it will have its impact on the way organized cardiology, such as the American Heart Association and the American College of Cardiology, makes their guidelines.
Thomas Ryan

Joe`s depth of experience and expertise in these markets will contribute significantly to serving our readers relevant and useful information. We are delighted to bring this level of representation to Cardiology Review and Resident & Staff Physician.
Ashley Goforth

Choosing a pacemaker  is not a child’s play . It is a  complex game played by cardiologists , electro-physiologists and their  ill-informed patients. The superiority of dual chamber pacing over single chamber pacing was never convincingly proven. Still usage of dual chamber pacing is steadily increasing over the years for various reasons.

Every thing hangs around a key word called quality of life . DDD pacemaker is supposed to enrich life due to their AV synchrony.

How an extra lead at a cost of  2000 dollars more, is  going to  provide that  elusive “quality of life“  to all those poor patients with bradycardia  in  this world  , which they any-way lacked even in their best of times!

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About Carl William Brown

I'm Carl William Brown a holistic teacher, a webmaster, a trader, and a writer of aphorisms and essays. I have written more than 9,000 original quotations and at present I'm also working at my only novel, Fort Attack, which is also a wide and open blog project. At the moment I'm teaching English in a secondary school, but up to now I have done a lot of other things as well, both in business, educational, sport and social fields. Some years ago, in 1997 following the examples of the Rotary or the Lyons Clubs I founded the Daimon Club Organization to promote every sort of activities, creativity, art, literature, new technologies, informatics, business and marketing, public health and education and to meet new friends with these kind of interests.
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