Hearts

Heart attacks are the leading cause of death in the United States. Heart attacks are caused by blockage in the arteries that carry blood to parts of the heart. When an artery gets blocked, the part of the heart that the artery is going to gets none of the blood and oxygen it needs, and that part of the heart dies. If a certain n part of the heart dies, the heart can remain alive without it. But if a big part of the heart dies, it can cause death. The blockage in the arteries is caused by build…

A plethora of individuals have a clue about various heart related diseases, but are unsure of what it exactly is. One of the major cardiovascular diseases is coronary heart disease. In which, the arteries harden and narrow due to plaque buildup that is known as atherosclerosis. Coronary heart disease usually leads to heart attacks because of high blood pressure, smoking, diabetes, and abnormal cholesterol levels. Furthermore, a study conducted by Hambrecht et al. (2000) was to determine if…

Until recently, the only viable option for severe heart failure patients has been heart transplantation. Heart disease continues to claim an increasing proportion of the world’s population, so in turn the demand for donor hearts is rising. However, according to the alarming figures from the Registry of the International Society for Heart and Lung Transplantation in 2013, the number of donor hearts readily available for transplant are flat in countries and declining in others. To address this…

26% in women according to the British Heart Foundation in 2014 2. However, whilst these figures seem large, it is worth noting that age-standardised death rates from cardiovascular disease have plummeted significantly since 1969 and are possibly indicative of better treatment, lifestyle choices…

Heart failure is one of the leading causes in death among the human health system. Scientist is constantly finding ways to keep the cardiovascular system healthy so this casualty can be reduced. In order to do that, a solution has to be put in place to keep the cardiovascular system regulated. This means knowing how the heart functions and how to keep it working at a sustainable level so problems can be prevented. The cardiovascular system works on a homeostasis system. This is where the…

Coronary heart disease and angina • Angina is pain or discomfort that comes when your heart does not get enough oxygen. Angina is usually a symptom of a heart problem known as coronary heart disease (CHD), also called coronary artery disease (CAD)1 • • Your heart is a muscle. It pumps oxygen-rich blood to your whole body. Your heart also needs oxygen to work. Blood vessels called coronary arteries carry blood with oxygen to your heart. • • In healthy coronary arteries, blood flows freely to…

Heart failure There are many ways to treat people diagnosed with heart failure: diuretics, nitrates, and change of diet. These treatments have been effective but it is important to explore other options. Many of these treatments achieve a relief in symptoms on patients with heart failures but what if we can treat these patients with fewer side effects or increase their survival rate? Understanding Heart Failure Before exploring some of the latest research it is important to understand what…

Although human and frog hearts do not look the exact same, they do act very similar. Human hearts have four chambers: two atria and two ventricles. Contrarily, frog hearts have only three chambers: two atria and one ventricle. Frogs are helpful in scientific research of the heart and its many functions because human hearts can obviously not be used. In this case, the frog hearts are helpful in determining the effects of different chemicals on the heart. Certain chemicals and agents effect the…

The heart-lung machine, or pump oxygenator, invented by John Gibbon in the early 1950s, had opened the era of modern heart surgery for coronary artery disease (Buxton & Galvin, 2013). It significantly increased the survival rate and quality of life of patient suffering from coronary artery disease (CAD); however, the higher complication rate caused by the heart-lung pump machine, such as the neurocognitive impairment, the systematic inflammation, the long recovery time, and the high operation…

activities and changes in appetite and weight. Depression can definitely be an underlying factor to the inflammation process. Eric Wargo author of Understanding the Have-Knots stated that a “close connection between inflammation and both depression and heart disease has led some researchers to theorize that inflammation may be what mediates the two-way street between these two conditions” (2007 p. 5). Wargo’s two-way street he described in…