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Topic: Cardiac stress testing

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	Quinton Products for Advanced Cardiology
		Cardiac stress testing has been an important diagnostic tool for more than four decades.
		Inexpensive and simple to perform, the procedure monitors heart rate, blood pressure and ECG to determine whether induced stress may reveal abnormalities in cardiac function.
		We are often acknowledged as a global leader in the cardiac stress testing market.
	www.quinton.com /products/cardiacstress (238 words)

	Cardiac Stress Test
		With a "maximal" stress test, the level of exercise is gradually increased until the patient cannot keep up any longer because of fatigue, or until symptoms (chest pain, shortness of breath, or lightheadedness) prevent further exercise, or until changes on the ECC indicate a cardiac problem.
		The stress test is useful chiefly in the diagnosis of coronary artery disease.
		The accuracy of the stress test in diagnosing coronary artery disease is greatly increased by performing a nuclear perfusion study in conjunction with the stress test.
	www.greenvilleradiology.com /procedures/miscellaneous/cardiac_stress_test.htm (1439 words)

	Cardiac stress test - Wikipedia, the free encyclopedia
		A cardiac stress test is a medical test performed to evaluate arterial blood flow to the myocardium (heart muscle) during physical exercise, compared to blood flow while at rest.
		Unfortunately, cardiac stress tests are only capable of detecting medium to high grade limitations of blood flow to the left ventricular heart muscle which may produce recurring angina, not the atheroma which produce heart attacks.
		Thus stress test results are often falsely negative for many people, in terms of predicting who is at high risk for myocardial infarction due to atheroma or ruptured "vulnerable plaques".
	www.sciencedaily.com /encyclopedia/cardiac_stress_test (2756 words)

	Common Cardiovascular Tests : Cardiac Stress Testing
		Cardiac stress testing is usually performed in an effort to evaluate symptoms suggesting the presence of blockages in the blood vessels of the heart, commonly called coronary artery disease.
		There are other reasons to perform cardiac stress testing such as the detection of arrhythmias, the assessment of an individual’s functional capacity or blood pressure response to exercise, for instance.
		In many cases a stress test may be ordered to evaluate and detect early problems in patients that have had PTCA or coronary artery bypass surgery, particularly if there are clinical reasons to suspect recurrence or progression of coronary artery disease or failure of the bypass grafts.
	www.ohioheartandvascular.com /cvtests/cardiac-stress-testing.php (205 words)

	Stress Test Intro
		Both groups may benefit from a cardiac stress test during which exercise or a chemical substance is used to stress the heart and expose hidden heart disease or to help rule it out.
		The heart may be stressed by having a patient exercise on a treadmill or a stationary bicycle.
		When a treadmill or stationary bicycle stress testing is conducted, it is continued until the patient achieves a target heart rate (based upon age).
	www.heartsite.com /html/stress_test.html (799 words)

	Exercise stress testing helps identify people at risk of developing coronary heart disease
		Performing cardiac stress tests that measure exercise capacity and heart rate recovery can improve dramatically on existing techniques that predict who is most likely to suffer a heart attack or die from coronary heart disease (CHD), the leading cause of death in the United States, a team of cardiologists at Johns Hopkins reports.
		Cardiac stress testing is used to gauge how well the heart works when it has to pump harder and use more oxygen, for example, while walking on a treadmill.
		During stress testing, a person's breathing, blood pressure and heart rate are monitored while the intensity of their exercising is slowly increased to see how their heart responds.
	www.eurekalert.org /pub_releases/2005-09/jhmi-est091305.php (895 words)

	Cardiac Science Announces Groundbreaking New Research For Assessing Risk Of Cardiovascular Death - News, Search Jobs, ...
		Cardiac stress testing, one of the most cost-effective and widely used cardiac screening tests, has traditionally been considered an effective method of identifying coronary artery disease with only limited diagnostic value for other cardiovascular problems.
		Increasing the diagnostic effectiveness of cardiac stress testing, which is frequently used and low-cost, could enhance the early identification of patients who are at increased risk.
		Cardiac Science develops, manufactures, and markets a family of advanced diagnostic and therapeutic cardiology devices and systems, including automated external defibrillators, electrocardiographs, stress test systems, Holter monitoring systems, hospital defibrillators, cardiac rehabilitation telemetry systems, patient monitor- defibrillators and cardiology data management systems.
	www.biospace.com /news_story.aspx?StoryID=12481&full=1 (750 words)

	Cardiac Nuclear Medicine
		Cardiac nuclear medicine refers to these diagnostic tests that are used to examine the anatomy and function of the heart.
		Cardiac nuclear medicine tests are indicated for individuals with unexplained chest pain or chest pain brought on by exercise (called angina) to permit the early detection of heart disease.
		The test is important for evaluating the presence and extent of suspected or known coronary artery disease (blockages) as well as the results of previous injury to the heart from a heart attack, called a myocardial infarction.
	www.radiologyinfo.org /content/cardiac_nuclear_med.htm (1638 words)

	Exercise Stress Test (Site not responding. Last check: )
		A cardiac stress test is used to assess the heart muscle's response...
		test are: graded exercise test, exercise tolerance test, exercise stress test, or exercise electrocardiography (e-LEK...
		A stress test is a special type of electrocardiogram (EKG) that compares the heart's electrical activity at rest and under exertion.
	www.dietspots.com /63/exercise-stress-test.html (692 words)

	Exercise stress testing helps identify coronary heart disease risk
		According to the cardiologists, these exercise stress tests are easy to perform, lasting less than 20 minutes and requiring only that a person walk on a treadmill at progressively higher speeds and inclines every three minutes until they become markedly fatigued.
		Cardiac stress testing is used to gauge how well the heart works when it has to pump harder and use more oxygen, for example, while walking on a treadmill.
		During stress testing, a person’s breathing, blood pressure and heart rate are monitored while the intensity of their exercising is slowly increased to see how their heart responds.
	www.todaysseniorsnetwork.com /stress_test_helpful.htm (895 words)

	The Cardiac Laboratory
		Stress echocardiography, using either exercise or medication to increase the workload on your heart, is performed in the Cardiac Lab.
		When undertaking a cardiac stress test, the goal is to raise your heart rate to the maximum rate for your age group.
		In conjunction with the stress test, your physician also may order a nuclear imaging test, which involves the injection of a small dose of a radioactive substance that illuminates the area of the body to be studied.
	www.sbhcs.com /hospitals/monmouth_medical/services/cardlab.html (1125 words)

	Cardiac stress test (Site not responding. Last check: )
		This test is performed while the patient walks on a treadmill and is monitored by several diagnostic instruments, including an ECG machine.
		In this case, the patient receives a heart stimulant and the heart is monitored on the echo screen for possible problems with ischemia, diagnosis of myocardial infarction, or problems with the heart valves.
		While sleep is important for handling stress effectively, being productive, and staying healthy, stressed and busy people--those who need sleep the most--tend...
	www.serebella.com /encyclopedia/article-Cardiac_stress_test.html (589 words)

	Stress Testing - Cardiac Specialists
		The test may be used as a screening mechanism to see if you may have blockages in the arteries in your heart.
		Often, a stress test may be done in conjunction with other non-invasive tests such as Echocardiography or Nuclear Imaging.
		Stress tests are performed under closely monitored conditions to ensure safety.
	www.cardiacspecialists.com /stress_testing.htm (327 words)

	UK Cardiac Stress Testing Resources
		the advisability of supervised cardiac stress testing (cardiac treadmill) to identify assymptomatic...
		Cardiac Nuclear Imaging determines if coronary artery stenoses (blockages) are limiting blood flow to the heart muscle during physical activity.
		Cardiac Stress Testing is an exercise test to help determine the possibility of heart disease and level of conditioning.
	www.successischildsplay.com /stress/cardiac-stress-testing.html (504 words)

	Speke : Cardiac Stress Testing (Site not responding. Last check: )
		I have received a number of question as to the advisability of supervised cardiac stress testing (cardiac treadmill) to identify assymptomatic coronary artery disease - either to get clearance to safely begin an exercise program or prior to getting into competitive cycling.
		This is a complex question as an answer needs to take into account a number of variables such as age and the presence of various "cardiac risk factors" such as high blood pressure, family history, and elevated cholesterol/lipids.
		Testing is also recommended for younger individuals with coronary risk factors or a strong family history of coronary artery disease (CAD).
	www.speke-pcrc.co.za /articles/2004/treadmill-testing.shtm (483 words)

	Cardiac Stress Testing
		The majority of patients referred to the stress laboratory require further evaluation of a "chest pain syndrome" to determine the presence/absence and the severity of potential functional myocardial ischemia related to obstructive CAD.
		Non-invasive stress protocols are most relevant in terms of incremental diagnostic value in those patients presenting with "chest pain syndrome" who fall into the category of "intermediate probability of functionally significant CAD" on the basis of their pretest clinical data.
		A false negative result may occur when the level of stress is insufficient, e.g., a patient is unable or unwilling to perform adequate exercise or has taken medication or food that interferes with pharmacologic stress.
	www.msit.com /phys_art06.html (1115 words)

	EVALUATION BY CARDIAC STRESS TESTING
		As part of the cardiac rehabilitation programme, patients with coronary artery disease who have undergone surgical intervention or are receiving medical therapy should perform an exercise stress test when they are medically stable and symptom-free.
		The stress test can be used to assess the effectiveness of the present treatment.
		Exercise stress testing may worsen the patient's condition or place the patient at increased risk of cardiac instability or injury in the setting of acute myocardial infarction, unstable angina, acute cardiac inflammation, severe congestive heart failure, uncontrolled sustained ventricular arrhythmias, symptomatic supraventricular arrhythmia, high-grade block, hemodynamically significant aortic stenosis or severe hypertension.
	www.mejfm.com /journal/cardiac_rehabilitation4.htm (307 words)

	St. Bernards Medical Center \| HeartCare
		Stress and Dobutamine Echocardiography: combines the modalities of echocardiography and cardiac stress testing to evaluate the heart function non-invasively.
		Transesophageal Echocardiography: allows the interpreting physician to visualize cardiac structures on patients who are normally difficult to image and is an excellent vehicle for ruling out thrombus source in the heart as well as evaluation of LV on hand to image patients.
		The Cardiac Educator is also involved with the education of patients on pre- and post-cardiac procedures, assists in educating patients on prescribed medications prior to procedures, assists in coordinating cardiac rehab while patient is both an inpatient and outpatient, and consults with a dietician to see patients with modifiable cardiac risk factors.
	www.sbrmc.com /html_services/heartcare.php (895 words)

	cardiac stress test
		This is a test that evaluates the blood flow and function of your heart.
		The results of the cardiac exercise stress test are interpreted by the cardiologist and forwarded to the referring physician for follow-up.
		Currently, it is too costly and impractical for physicians to use an MRI scanner to examine the heart during a typical cardiac stress test.
	www.cachebeauty.com /link_directory/cardiac_stress_test.html (1312 words)

	nuclear stress test
		Nuclear stress test is a noninvasive means of detecting the presence and/or significance of coronary artery disease.
		Tests: Nuclear: Sestamibi Exercise Stress Test (sestamibi stress test, stress...
		During a nuclear medicine cardiac stress test, the radioactive material is injected into the circulatory system and tracked as it passes through the heart.
	www.cachebeauty.com /link_directory/nuclear_stress_test.html (1479 words)

	USNews.com: Health: Cardiomyopathy: Nuclear Cardiac Stress Testing: Thallium Scans
		Occasionally, patients with dilated or restrictive cardiomyopathy may have a nuclear cardiac stress test to evaluate how well the heart muscle is being supplied with blood and how well the ventricles or chambers are working.
		In a sense, nuclear testing is the opposite of X-rays.
		The test can last between two and four hours and begins with the insertion of an IV line for administering the thallium and the attaching of electrodes to the skin for monitoring the heartbeat with an electrocardiogram (ECG) machine.
	www.usnews.com /usnews/health/heart/cardiomyopathy/cm.test.nuclear.htm (417 words)

	Speke : Cardiac Stress Testing (Site not responding. Last check: )
		I have received a number of question as to the advisability of supervised cardiac stress testing (cardiac treadmill) to identify assymptomatic coronary artery disease - either to get clearance to safely begin an exercise program or prior to getting into competitive cycling.
		This is a complex question as an answer needs to take into account a number of variables such as age and the presence of various "cardiac risk factors" such as high blood pressure, family history, and elevated cholesterol/lipids.
		Testing is also recommended for younger individuals with coronary risk factors or a strong family history of coronary artery disease (CAD).
	www.speke.co.za /articles/2004/treadmill-testing.shtm (483 words)

	NGC - NGC Summary
		The test is useful for diagnostic purposes in patients whose pre-test probability of disease is in the intermediate range of coronary disease (e.g., a middle-aged man with atypical chest pain or a middle-aged woman with typical angina).
		The results of a stress test do not provide a definitive answer as to whether coronary artery disease is present or absent but only alter the probability that coronary artery disease is present or absent.
		In patients with a normal resting ECG, the standard exercise test is nearly as accurate as the imaging procedures for correctly identifying patients with left main or 3 vessel CAD and for predicting outcomes.
	www.guidelines.gov /summary/summary.aspx?view_id=1&doc_id=6142 (3370 words)

	NSCG - Cardiovascular testing
		Stress echocardiography has a sensitivity and specificity nearly identical to myocardial perfusion stress testing, and in many cases these tests may be used interchangeably.
		Patients with chronic, recurrent CHF and symptoms of low cardiac output, who appear to be refractory to medical therapy, should be carefully evaluated for stunned (post-MI) or hibernating (chronic hypoperfusion) myocardium, as their symptoms may be vastly improved upon successful revascularization.
		Assuming a regular cardiac rhythm, the MUGA derived ejection fraction is accurate and reproducible, however, ancillary cardiac information such as chamber size and wall thickness, valvular structure and function, pericardial disorders, and right heart pressures, as are routinely obtained during echocardiography, are not obtained with this test.
	www.nscardiology.com /testing.htm (2920 words)

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