Ischemia

evaluation. 3,4,5,6 Previous studies using Doppler tissue imaging have selectively evaluated lateral tricuspid annulus alone or in combination with RV lateral wall.7,8 Subclinical RV dysfunction is known in patients with right coronary territory ischemia n results. Right ventricular functions in LV anterior infarction has been subject of several studies but with significant discrepancies in results.3, 7…

Syncope "Syncope is defined as an abrupt, transient loss of consciousness and postural tone with spontaneous recovery, most often caused by loss of cerebral oxygenation and perfusion referred to as cerebral ischemia. Syncope is also referred to as transient loss of consciousness (Grimes, 2014)." Syncope is considered the most common medical emergency in dental offices around the world (Grimes, 2014). It can most likely occur when blood pressure is too low (hypotension) and the heart is not…

Preoperative evaluation Cardiac surgery, including coronary artery bypass grafting and surgery for valvular disease, represents one of the most common classes of surgical procedures performed worldwide. Advances in the percutaneous management of coronary artery disease as well as in cardiac surgical techniques have led to improved outcomes with consequent longer life expectancy for patients. Greater numbers of patients with depressed left ventricular function, multiple comorbidities, failed…

An electrocardiogram (ECG) is a basic test that can be utilized to check the heart 's rhythm and electrical signals. Sensors fixed to the skin are utilized to detect the electrical signals created by the heart every time it pulsates. These signals are recorded by an ECG and are diagnosed by a cardiologist or GP to check abnormalities or presence of heart disease. The ECG is commonly used by trained technicians to analyze and screen conditions influencing the heart. It can also be used to examine…

cerebral hypoperfusion. Other causes of ischemic stroke include atrial fibrillation, sickle cell disease and ventricular tachycardia. The pathophysiology of an ischemic stroke first involves a decrease in oxygen, glucose and other nutrients due to ischemia. Due to decreased oxygen, the normal process of oxidative phosphorylation does not occur, and thus ATP is not generated. ATP reliant ion transporting pumps cannot function, causing the neuron to become depolarised and allowing extracellular…

Wave Forms The P wave represents atrial depolarization. When the sinus node is in control, there should be a P wave for each and every QRS complex. Typically, sinus P waves do not plot through an ectopic from atrial tissue, since the premature atrial depolarization will reset the sinus cadence called a premature atrial complex (Blesi/Jones/Lewis pg136). The P waves is when the valves between the atria and ventricles open 70% of the blood in the atria and the atrial contraction is only…

Sickle cell anemia (SCA) is a classification of the most common form of sickle cell disease. This class of sickle cell disease is genetic and is caused by the homozygous mutation of the beta-hemoglobin gene (beta S allele) in red blood cells [2]. Individuals who are diagnosed with sickle cell anemia have deformed (sickle shaped) red blood cells that have a lower lifespan [3]. This causes irreversible tissue damage and causes a vaso-occlusive crisis, which is pain in the abdomen, bones and chest…

coronary artery, or when an emboli travels to the coronary artery. (VanMeter & Hubert, 2014). When a coronary artery becomes occluded, oxygenated blood cannot reach the surrounding cardiac tissue. The lack of oxygenated blood supply to the tissue (ischemia) results in cell death and necrosis at the site of the blockage. As cells die, they release specific enzymes into the blood which are a key diagnostic marker of a heart attack. An area of necrotic tissue with surrounding inflammation develops…

The reality of the health care industry is that it works and operates as a business. With a strategic marketing strategy coupled with high patient care satisfaction, these businesses will prosper if certain internal are met. Operating a large entity such as a health care organization also demands innovative and up to date care, recruiting and retaining high quality staff and Chief Executive Officer (CEO) who has a vision for success. In the following discussion, three business principles will…

the large branches of the coronary blood vessels. This process is known as atherosclerosis. Atherosclerosis results in narrowing of the lumen coupled with hardening of the the coronary arteries supplying blood to the heart muscle. The result is ischemia (lack of adequate oxygen supply) to heart muscle. The consequence is damage to the heart muscle (myocardium). Complete blockade of coronary blood vessels results in heart-attack (myocardial infarction in medical…