Cardiovascular - American Physiological Society
... humoral factors that influence their rate. CV 13. Discuss the significance of “overdrive suppression” and “ectopic pacemaker,” including the conditions necessary for each to occur. CV 14. Contrast the sympathetic and parasympathetic nervous system influence on heart rate and cardiac excitation in ge ...
... humoral factors that influence their rate. CV 13. Discuss the significance of “overdrive suppression” and “ectopic pacemaker,” including the conditions necessary for each to occur. CV 14. Contrast the sympathetic and parasympathetic nervous system influence on heart rate and cardiac excitation in ge ...
Chapter 7
... In this most common congenital defect there is a hole in the septum that separates the right and left ventricles (Fig. 7.2). As a result, blood is short-circuited back into the lungs, putting a burden on both heart and lungs. About 30 percent to 50 percent of these holes, especially the smaller ones ...
... In this most common congenital defect there is a hole in the septum that separates the right and left ventricles (Fig. 7.2). As a result, blood is short-circuited back into the lungs, putting a burden on both heart and lungs. About 30 percent to 50 percent of these holes, especially the smaller ones ...
Original Article Coronary artery disease in patients undergoing valve
... is consistent with this finding. We found significant coronary stenosis (> 50%) in 31.3% of patients undergoing valve replacement. Considering the overall prevalence of rheumatic heart disease in our population it is important to identify presence of significant CAD in this subgroup of patients. How ...
... is consistent with this finding. We found significant coronary stenosis (> 50%) in 31.3% of patients undergoing valve replacement. Considering the overall prevalence of rheumatic heart disease in our population it is important to identify presence of significant CAD in this subgroup of patients. How ...
Understanding the Heart Defect PFO
... about this condition. If you have been diagnosed with PFO, it is important to talk to your doctor about new technologies and whether or not they are right for ...
... about this condition. If you have been diagnosed with PFO, it is important to talk to your doctor about new technologies and whether or not they are right for ...
Pulmonary atresia with a ventricular septal defect
... my child grows up? Children who have pulmonary atresia with a VSD are always limited to some extent in their physical activities, but specific restrictions on exercise are usually not necessary. Although surgery can give a better quality of life, it is not possible to correct the heart abnormality a ...
... my child grows up? Children who have pulmonary atresia with a VSD are always limited to some extent in their physical activities, but specific restrictions on exercise are usually not necessary. Although surgery can give a better quality of life, it is not possible to correct the heart abnormality a ...
Mechanical Circulatory Support Device
... Eventually, the heart fails completely and can no longer pump enough blood to sustain life. At this endstage, eligible patients can undergo heart transplant; however, only around 2,000 heart transplants are performed annually in the United States (HRSA, 2012). In addition, older patients are often ...
... Eventually, the heart fails completely and can no longer pump enough blood to sustain life. At this endstage, eligible patients can undergo heart transplant; however, only around 2,000 heart transplants are performed annually in the United States (HRSA, 2012). In addition, older patients are often ...
Q and A: Tetralogy of Fallot - Canadian Congenital Heart Alliance
... pulmonary valve replacement (PVR) to replace your leaky pulmonary valve with a new valve. There are two main kinds of valves—tissue valves and mechanical valves. Tissue valves can come from human cadavers (homograft valves) or from pig or cow heart tissue (heterograft valves). Mechanical valves are ...
... pulmonary valve replacement (PVR) to replace your leaky pulmonary valve with a new valve. There are two main kinds of valves—tissue valves and mechanical valves. Tissue valves can come from human cadavers (homograft valves) or from pig or cow heart tissue (heterograft valves). Mechanical valves are ...
MR Imaging of Congenital Heart Disease
... a predominance of males. There is an area of narrowing in the thoracic aorta in the region of insertion of the arterial duct (aortic isthmus, Fig. 2). There is a risk of hypertension, atherosclerosis and end organ damage, even in patients who have undergone surgical repair. Treatment in infancy with ...
... a predominance of males. There is an area of narrowing in the thoracic aorta in the region of insertion of the arterial duct (aortic isthmus, Fig. 2). There is a risk of hypertension, atherosclerosis and end organ damage, even in patients who have undergone surgical repair. Treatment in infancy with ...
Ablation of right sided ventricular tachycardias
... -Ten intracardiac thrombi were identified in 8 patients (4.1%), the majority (7/10) of which were found in the right ventricular apex -Female gender and left ventricular dysfunction were independently associated with increased risk for thrombosis in ARVC -During a median FU of 38 months (range 2-128 ...
... -Ten intracardiac thrombi were identified in 8 patients (4.1%), the majority (7/10) of which were found in the right ventricular apex -Female gender and left ventricular dysfunction were independently associated with increased risk for thrombosis in ARVC -During a median FU of 38 months (range 2-128 ...
Living with Your Implantable Defibrillator (ICD)*
... The Medtronic MyCareLink Patient Monitor and the CareLink® Monitor are prescription devices indicated for use in the transfer of patient data from some Medtronic implantable cardiac devices based on physician instructions and as described in the product manuals. The CareLink Patient Information Site ...
... The Medtronic MyCareLink Patient Monitor and the CareLink® Monitor are prescription devices indicated for use in the transfer of patient data from some Medtronic implantable cardiac devices based on physician instructions and as described in the product manuals. The CareLink Patient Information Site ...
IOSR Journal of Dental and Medical Sciences (JDMS)
... hypertension.3The pathological issues can only be resolved by the medical intervention. All conventional treatments provide the symptomatic resolution only. Very little work has been commenced to understand the Neuro-cardiac pathology induced by herpes family of viruses28-35. The electrical voltage ...
... hypertension.3The pathological issues can only be resolved by the medical intervention. All conventional treatments provide the symptomatic resolution only. Very little work has been commenced to understand the Neuro-cardiac pathology induced by herpes family of viruses28-35. The electrical voltage ...
Prognostic Significance of Post- Exercise Blood Pressure Response
... pressure ratio（PBP3）to evaluate postexercise systolic blood pressure response5,19）. PBP3 was found to be useful for predicting the outcome of patients with chronic heart failure secondary to dilated cardiomyopathy. Several mechanisms may be considered to explain this result. First, delayed decrease ...
... pressure ratio（PBP3）to evaluate postexercise systolic blood pressure response5,19）. PBP3 was found to be useful for predicting the outcome of patients with chronic heart failure secondary to dilated cardiomyopathy. Several mechanisms may be considered to explain this result. First, delayed decrease ...
Aortic Stenosis Explained - New - CardioRespiratory Pet Referrals
... puppy gets older; any murmur that persists or is felt to be loud should be pursued. When the heart is not properly pumping blood to the body, the animal may become lethargic or have a lack of stamina when exercising. If there is a backing up of fluid in the lungs (this can occur in severe cases of a ...
... puppy gets older; any murmur that persists or is felt to be loud should be pursued. When the heart is not properly pumping blood to the body, the animal may become lethargic or have a lack of stamina when exercising. If there is a backing up of fluid in the lungs (this can occur in severe cases of a ...
Ebstein`s Anomaly
... This rare defect involves an abnormality in the Tricuspid Valve, which connects the right atrium with the right ventricle. In Ebstein's Anomaly of the Tricuspid Valve, the valve forms abnormally and is lower than usual in the heart (number 1 in illustration). This displacement of the tricuspid valve ...
... This rare defect involves an abnormality in the Tricuspid Valve, which connects the right atrium with the right ventricle. In Ebstein's Anomaly of the Tricuspid Valve, the valve forms abnormally and is lower than usual in the heart (number 1 in illustration). This displacement of the tricuspid valve ...
Thank you for your letter addressed to the SHN Service
... Publication of the SCCN clinical guidance will be included with other clinical guidelines on the Sussex Heart Network website; patients that the cardiologists or cardiac surgeons assess at risk will be provided with a patient held card within cardiology clinics GPs will be advised by cardiologists ...
... Publication of the SCCN clinical guidance will be included with other clinical guidelines on the Sussex Heart Network website; patients that the cardiologists or cardiac surgeons assess at risk will be provided with a patient held card within cardiology clinics GPs will be advised by cardiologists ...
Study Guide 2017
... muscular tension and promote relaxation. It is best to stretch when you are comfortable and relaxed. If you do not stretch on a regular basis your muscular flexibility will worsen and your muscles will become stiffer. Stretching before and after a workout can help you stay flexible and prevent injur ...
... muscular tension and promote relaxation. It is best to stretch when you are comfortable and relaxed. If you do not stretch on a regular basis your muscular flexibility will worsen and your muscles will become stiffer. Stretching before and after a workout can help you stay flexible and prevent injur ...
Aortic Stenosis Client Handout PESC
... puppy gets older; any murmur that persists or is felt to be loud should be pursued. When the heart is not properly pumping blood to the body, the animal may become lethargic or have a lack of stamina when exercising. If there is a backing up of fluid in the lungs (this can occur in severe cases of a ...
... puppy gets older; any murmur that persists or is felt to be loud should be pursued. When the heart is not properly pumping blood to the body, the animal may become lethargic or have a lack of stamina when exercising. If there is a backing up of fluid in the lungs (this can occur in severe cases of a ...
Final Announcement 3rd IACS ES 2016_v5
... Registration fee is 600 €/person with double cabin occupancy. Junior registration fee: 400€/person, only with double cabin occupancy. To qualify for Junior registration fee, the registrant must be a PhD student OR have a PhD degree obtained in 2013 or later (documentation required) AND must not be o ...
... Registration fee is 600 €/person with double cabin occupancy. Junior registration fee: 400€/person, only with double cabin occupancy. To qualify for Junior registration fee, the registrant must be a PhD student OR have a PhD degree obtained in 2013 or later (documentation required) AND must not be o ...
Risk Factors for Postoperative Respiratory
... In CABG patients, there are a number of adverse stress responses imposed on them (6) due to the nature of the procedure; including the anesthesia and surgical procedures, superimposed by the stress of the cardiopulmonary bypass (CPB) surgery, itself. These unwanted factors affect all physiologic par ...
... In CABG patients, there are a number of adverse stress responses imposed on them (6) due to the nature of the procedure; including the anesthesia and surgical procedures, superimposed by the stress of the cardiopulmonary bypass (CPB) surgery, itself. These unwanted factors affect all physiologic par ...
10 Heart Rate BP Vital Signs
... Since the earliest days of medicine heart rate has been recognized as a vital sign—an indicator of health, disease, excitement, and stress. Medical personnel use the heart rate to provide clues as to the presence of many medical conditions. Reflex changes in heart rate are one of the body’s most bas ...
... Since the earliest days of medicine heart rate has been recognized as a vital sign—an indicator of health, disease, excitement, and stress. Medical personnel use the heart rate to provide clues as to the presence of many medical conditions. Reflex changes in heart rate are one of the body’s most bas ...
Stroke Update
... and aortic arch atheroma • silent stroke—study found 40% of men 80 yr of age had evidence of stroke on imaging but no history of symptoms • frequency increases with age and may be higher in men than in women; questions remain about management • carotid stenosis—plaque type may be more important than ...
... and aortic arch atheroma • silent stroke—study found 40% of men 80 yr of age had evidence of stroke on imaging but no history of symptoms • frequency increases with age and may be higher in men than in women; questions remain about management • carotid stenosis—plaque type may be more important than ...
learning zone
... Q wave The Q wave, the first negative deflection, is caused by depolarisation through the septum (muscle wall) that separates the left and right ventricles, and through which the ventricular conduction pathway passes. Q waves are usually small or absent, depending on the electrical view (or lead use ...
... Q wave The Q wave, the first negative deflection, is caused by depolarisation through the septum (muscle wall) that separates the left and right ventricles, and through which the ventricular conduction pathway passes. Q waves are usually small or absent, depending on the electrical view (or lead use ...
Cardiac physiology: mechanical events and regulation of cardiac
... - determined by physical properties of wall tissue o thick wall (hypertrophy) > dec compliance; higher ventricular end diastolic pressure for any given ventricular end diastolic volume - relationship is nonlinear – compliance decreases with increasing pressure or volume - ventricular compliance – de ...
... - determined by physical properties of wall tissue o thick wall (hypertrophy) > dec compliance; higher ventricular end diastolic pressure for any given ventricular end diastolic volume - relationship is nonlinear – compliance decreases with increasing pressure or volume - ventricular compliance – de ...
Electrocardiogram
... • Usually associated with inferior and/or lateral wall MI Mirror Test: Once you have determined an inferior (or other) MI has occurred, you begin looking for reciprocal changes. If there is ST depression in V1, V2, and V3, flip the EKG over and hold it up to the light. Now read those leads flipped o ...
... • Usually associated with inferior and/or lateral wall MI Mirror Test: Once you have determined an inferior (or other) MI has occurred, you begin looking for reciprocal changes. If there is ST depression in V1, V2, and V3, flip the EKG over and hold it up to the light. Now read those leads flipped o ...
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.