Slippery Rock, PETE 7507

Excerpt: ... What is Coronary Artery Disease (Heart Disease)? Coronary Artery Disease is a chronic disease in which the coronary arteries have hardened and narrowed, leaving less room for blood to flow through. Go Back to Main Page ...

Georgia Tech, HPS 1040

Excerpt: ... Toward the heart Capillaries Heart Consists of four chambers Upper atria Lower ventricles Heart has two circulatory systems Pulmonary circulation Systematic circulation Major Forms of Cardiovascular Disease CAD ( Coronary Artery Disease ) Atherosclerosis: build up of plaque on the arteries. A form of arteriosclerosis (hardening of the arteries) Arteries become narrow due to plaque buildup. This process deprives blood and vital oxygen to specific organs, such as the heart, brain, etc. Results in the following: Coronary Heart Disease Stroke Peripheral Arterial Disease Hypertension Stroke Congestive Heart Failure Disease Process Coronary artery disease is the most common form of cardiovascular disease. This process involves the slow gradual buildup of plaque within the arteries. Over many years, plaque reduces the blood supply to the heart tissue. This may result in either the onset of symptoms or a heart attack. In this heart (picture in slides), a blockage has completely cut off the blood supply in the left ...

N. Arizona, EXS 460

Excerpt: ... resting levels to and exercising heart rate of 100 btsmin -1 is primarily due to Ejection fraction is equal to , Forces that effect contractility can best be explain by just before contraction is best explained by Increases in VO2 max that occur with aerobic training are mo st likely due to increases in in a healthy person Increases in VO2 max that occur with aerobic training in those with severe cardiovascular disease (i.e. congestive heart failure) are most likely due to increases in During an acute, dynamic exercise bout, total peripheral resistance Compared to dynamic exercise systolic and diastolic blood pressure tend to during static exercise Compared to leg exercise, at any one workload, arm exercise is characterized by (i.e. differences in responses) With cardiorespiratory training all but which of the following tend to increase after a training (i.e. 3 months of aerobic exercise training)? Coronary artery disease patients can generally reach approximately for their peak MET capaci ...

Yale, LR 288

Excerpt: ... Benefits of Vitamin E in Coronary Artery Disease "Far From Proven" June 29, 1999 - The jury is still out on the benefits of vitamin E supplements to prevent or treat coronary artery disease (CAD), according to a comprehensive review published in the June 28th Archives of Internal Medicine. "Despite some data supporting the use of vitamin E, findings of controlled trials are limited and inconclusive," Dr. Anne Spencer say in the report. While studies "suggest" that supplemental vitamin E may ward off CAD, several questions have yet to be answered, such as the best dose, how long to take it and method of consumption. In the absence of conclusive data, supplemental vitamin E "may be considered" in CAD patients or those at high risk of developing CAD, ".but the potential benefits should be weighed against possible unknown long-term adverse effects." Editorialist Dr. Gordon Ewy says there are 3 reasons why it might be wise right now to hold off on prescribing vitamin E and other antioxidants. The first is th ...

UGA, HPBR 1710

Excerpt: ... Cardiovascular Disease Dr. Elizabeth Mendell HPRB 1710 Wed, Sept 17 2008 Lecture Overview (CVD=Cardiovascular Disease) CVD background Website: www.goredforwomen.org Women and CVD facts Part I: Cardiovascular System Overview Heart facts; heart structure and function The blood vessels The cardiovascular system (the heart + blood vessels) Part II: Cardiovascular Disease (CVD) CVD definition CVDs we will be covering in this lecture: coronary artery disease , heart attack, stroke You are responsible for reading Ch 21 (the entire chapter). Cardiovascular Disease Background CVD disease includes heart attack, stroke, peripheral artery disease, congestive heart failure, and other conditions. The disease process underlying many (but not all!) forms of CVD is atherosclerosis (hardening of the arteries). CVD is the #1 killer of men and women worldwide. Has been the leading cause of death in the US every year since 1900except 1918, when there was a ...

Georgia Tech, HPS 1040

Excerpt: ... Cardiovascular Disease (CVD) Statistics Coronary heart disease is the # 1 cause of death in the U.S., accounting over 40% of deaths annually. It is also the leading cause of death in 35-44 yr old males. Over 1.5 million Americans experience a heart attack per year. For 25% of these people, cardiac arrest will be their first symptom. Cardiovascular Disease (CVD) Statistics (cont.) Women are 5 times more likely to develop cardiovascular disease than breast cancer. It has been estimated that cardiovascular disease costs our economy over $400 billion annually. Major Forms of Cardiovascular Disease CAD ( coronary artery disease ) Atherosclerosis: build up of plaque on the arteries Hypertension Stroke Congestive heart failure Atherosclerosis Atherosclerosis is a form of arteriosclerosis (hardening of the arteries) Arteries become narrow due to plaque buildup This process deprives blood and vital oxygen to specific organs, such as the heart, brain, etc. Results in the following: ...

Yale, LR 288

Excerpt: ... American College of Cardiology 48th Annual Scientific Session March 7-10, 1999 Does Angiogenesis Promote Perfusion or Encourage Plaque Growth (help or hurt)? Angiogenesis is the process whereby new blood vessels are grown to service specific areas in the body, like the heart. Many proteins either inhibit or stimulate angiogenesis. Dr. Judah Folkman delivered the lecture: "Angiogenic Therapy for the Heart." Stimulators of Angiogenesis Angiogenic stimulation in patients with coronary artery disease (CAD) may have risks. Some data suggest that artherosclerotic plaque growth may depend on angiogenesis. New, growing micro-blood-vessels have been seen growing in plaques. In other words, causing angiogenesis, we may also be building up the very same plaque that caused clogged arteries in the first place. The search for stimulators of angiogenesis began recently. Dr. Jeffrey Isner presented data in 1997 showing that injection of VEGF - vascular endothelial growth factor - into the legs of patients with ...

UVA, POM 1

Excerpt: ... lem(s) is obtained during the history of present illness. The information obtained during the latter portions of the interview provides a complete database of the patients medical, personal and family history needed to provide optimal management of a patients problems. Frequently, information contained in the past history is asked about and reported in the history of present illness. For example, in interviewing a patient with chest pain that is suspicious for angina, a physician would query the patient about health habits (for example smoking), past history (hypertension, diabetes, hyperlipidemia), and family history (of early coronary artery disease ) that would affect the patients probability of having coronary artery disease . Balance The physician must often strike a balance between the need to obtain certain information, the health of the patient, and the time available and the setting. Portions of the past medical history are frequently not needed to address the problem at hand. Elemen ...

UCSD, BIMM 124

Excerpt: ... d by C. trachomatis is the number one STD. Clinical spectrum like gonorrhea. 1. Chlamydia pneumoniae-cause walking pneumonia; endocarditis; coronary artery disease Chlamydiae and Heart Disease (Background) Indirect Evidence Chlamydiae pneumoniae first came under suspicion as a cause of heart attacks in 1988 when doctors in Helinski reported that people with coronary artery disease were more likely than healthy control subjects to have antibodies to the organism in their blood. A second study showed unusually high antibody levels in the heart attack victims. Most experts dismssed the studies as a statistical oddity. Later, Dr. Thomas Grayston, an epidemiologist at UW, repeated and confirmed the studies. Direct evidence 1993, South African Reseacher found C pneumoniae in tissue during autopsies. These findings were confirmed by the Seattle researchers and other laboratories. Few experts paid attention until 1995 when a team at University of Louisville recovered the live organism from blood vessels of a pati ...

N.E. Illinois, UX 5250

Excerpt: ... Ventricular Conduction Disturbances Chapter 7 Bundle Branches Normal conduction speed through the bundles is about 0.1 seconds. Bundle Branch Block Consider a blocked or slowed branch or bundle Right Bundle Branch Block Right Bundle Branch Block First Phase Normal Second Phase Normal Third Phase ? Right Bundle Branch Block V1 = rSR' V6 = qRS Right Bundle Branch Block V1 = rSR'? V6 = qRS Right Bundle Branch Block V1 or V2= rSR' M or rabbit ear shape V5 or V6 = qRS Right chest leads: T wave inversion ("secondary changes" since they reflect a delay in depolarization not an actual change in depolarization). Complete RBBB: QRS > 0.12 sec. Incomplete RBBB: QRS = 0.10 to 0.12 sec. Right Bundle Branch Block Clinical Significance Normal Organic heart disease atrial septal defect pulmonary disease valvular lesions degenerative changes in conduction system chronic coronary artery disease Left Bundle Branch Block RBBB affects mainly the terminal phase of depolari ...