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CARDIOVASCULAR PHYSIOLOGY PART 1. HEART
CARDIOVASCULAR PHYSIOLOGY PART 1. HEART

... lasts no more than 0.1 seconds but has a large amplitude (variable to 1.3mV). This is followed by the S-T segment (0.12 sec) during which time the ventricles are reaching their maximum contraction but are not generating any electrical activity. Finally comes the T wave which represents the electrica ...
BIOSC 134-S09 75KB Feb 18 2014 10:40:34 AM
BIOSC 134-S09 75KB Feb 18 2014 10:40:34 AM

... 1) correlate the functions and abundance of cell organelles to the function of the cell; 2) understand and discuss basic steps of transcription and translation in protein synthesis; 3) compare and contrast the levels of protein structure with protein functions in the body; 4) understand and analyze ...
heart and seizure stuff SMA 31may2011
heart and seizure stuff SMA 31may2011

... They analyzed heart structure of the SMA mice compared with normal mice, and found that there were significant structural changes occurring in the heart of the SMA mice, along with severely impaired left-ventricular function. SMA mice also had significantly lower heart rates. After examining the und ...
The_Heart - Northwest ISD Moodle
The_Heart - Northwest ISD Moodle

... c. Stroke volume (SV) depends on how much blood enters a ventricle during diastole (end-diastolic volume) and how much blood is left in a ventricle following its systole (end systolic volume). d. The maximum percentage that cardiac output can be increased above normal is cardiac reserve. ...
Congenital Heart Disease in the Adult
Congenital Heart Disease in the Adult

... anywhere along its length but is most common distal to the origin of left subclacian artery near the insertion of the ligamentum arteriosum ...
Examination Of The Cardiovascular System
Examination Of The Cardiovascular System

... • Ventricular sounds, occur during diastole – normal in young patient (~ < 30 yo) – usually LV, rarely RV ...
First clinical trial with etomoxir in patients with
First clinical trial with etomoxir in patients with

... levels of contractile proteins have been observed, which may be responsible for reduced contractility as well as diastolic dysfunction. In addition, levels of a key protein in calcium cycling, i.e. the sarcoplasmic reticulum Ca2+-ATPase, and of the α-myosin heavy chain have been shown to be enhanced ...
thrombolytic therapy in acute myocardial infarction
thrombolytic therapy in acute myocardial infarction

... of infarct related arteries remain occluded despite therapy. Higher success rate of 92% and lower occlusion rate of 4% have been observed in patients with angioplasty after thrombolysis. TAMI, 1 trial results show slightly less success rate of 73%. Identification of (10%) high risk patients can bene ...
Medical Management of Atrial Fibrillation
Medical Management of Atrial Fibrillation

... Calcium channel blocker or beta blocker can be used Amiodarone may be needed for rate control in some resistant patients however at the risk of thromboembolism if cardioversion occurs and risk of toxicity ...
blood cells - Maaslandcollege
blood cells - Maaslandcollege

... the coronary artery brings blood with nutrients and oxygen to the muscle cells of the heart (so they can respire and make the heart contract and pump the blood throughout the body) 40. From which blood vessel does the coronary artery originate (waaruit ontstaat hij)? A the pulmonary artery (low in o ...
Blood Vessels - cloudfront.net
Blood Vessels - cloudfront.net

... Systemic circulation is the part of the cardiovascular system that carries oxygen-rich blood away from the heart, to the body, and returns oxygen-poor blood back to the heart. Oxygen-rich blood leaves the left ventricle through the aorta. Then it travels to the body’s organs and tissues. The tissues ...
Heart arrhythmias: Understanding abnormal
Heart arrhythmias: Understanding abnormal

... Atrial fibrillation is the most common form of SVT. It is when ‘waves’ of uncontrolled electrical signals, rather than the normal regulated signals, travel through the atria from the sinus node. These uncontrolled signals cause muscle fibres in the atria to contract out of time with each other, so t ...
Heart-Lung everythin..
Heart-Lung everythin..

... When Things Aren’t Quite Right ...
Pacemaker
Pacemaker

... Active Fixation – The helix (or screw) extends into the endocardial tissue – Allows for lead positioning anywhere in the heart’s chamber ...
Cardio-System-Test-A..
Cardio-System-Test-A..

... 7. A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. What medical condition connected to blood flow is most likely to affect this patient in the future? a. The patient may develop headaches and confusion due to cancer in the brain caused by years of ...
Cardiac Arrythmias
Cardiac Arrythmias

...  ECG findings: p wave present earlier than expected, abnormal shape to p wave because it is coming from an abnormal focus, normal QRS complex  Treatment: usually benign/no treatment, beta blockers can be used for symptomatic patients ...
better life. - barostim therapy
better life. - barostim therapy

... “When talking about BAROSTIM THERAPY, I’m often asked, ”What problems or concerns keep you up at night?” To me, there’s only one: “Can we make BAROSTIM THERAPY available to all those who need it, in time to help them?” For the past 15 years, my colleagues and I have worked tirelessly to develop a th ...
Heart - Institut Teknologi Bandung
Heart - Institut Teknologi Bandung

... First, soft masses of fatty materials, particularly cholesterol, accumulate in the arterial wall.  Further changes result in plaque, protrusions that interfere with blood flow. If the coronary artery is partially occluded (blocked) by atherosclerosis, the individual may suffer from ischemic heart d ...
Acupuncture Treatment of Atrial Fibrillation
Acupuncture Treatment of Atrial Fibrillation

... A Fortuitous Error On Day 18, W returned for a second treatment because he had had a strenuous work day teaching. We decided to do an experiment and use the second group of principle points, P 6 (Nei guan), P 4 (Xi men), and P 3 (Qu ze), a group which we had not yet used. In the process, I double-ch ...
LABORATORY
LABORATORY

... Pernicious anemia is most commonly diagnosed in people over 60 years of age and is rarely present in people below 40 years of age. This disease is caused by a deficiency of vitamin B12, which is often related to the fact that the gastric mucosa does not secrete the intrinsic factor (IF) needed for v ...
Abnormal ecg readings
Abnormal ecg readings

... • Ventricle discharges before the arrival of the next anticipated impulse from the SA node • Can occur at any rate but pose a greater danger with tachycardia • Associated with congenital defects, cardiomyopathy, GDV, drug reactions, cardiac neoplasia, anemia, acidosis, hyperthyroidism, hypokalemia ...


... suitable for outpatient management, with important savings in healthcare costs. Although the PESI score has a proven high discriminative performance in the identification of low-risk patients, outperforming other validated PE risk models [2, 3], some authors have recently demonstrated that the 48-h ...
Biocompatibility of Closure Devices
Biocompatibility of Closure Devices

hemodynamics
hemodynamics

... Aerosol medication may produce side-effects  First cardinal sign of hypoxemia is tachycardia  After taking pulse, continue palpating pulse as count respiratory rate ...
living a fuller life
living a fuller life

... When your heart is working well, you usually don’t notice it. When you have advanced heart failure, it may often seem like it’s all you can think about. With advanced heart failure, the left side of your heart has become too weak to pump the normal amount of oxygen-rich blood throughout your body.1 ...
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Myocardial infarction



Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.
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