The Cardiovascular System: The Heart
... Until the sixteenth century, people believed that blood moved from one side of the heart to the other by seeping through pores in the septum. We now know that the heart passages open not from one side to the other but vertically. The heart is actually two side-by-side pumps, each serving a separate ...
... Until the sixteenth century, people believed that blood moved from one side of the heart to the other by seeping through pores in the septum. We now know that the heart passages open not from one side to the other but vertically. The heart is actually two side-by-side pumps, each serving a separate ...
normal children - Heart
... secondary to regional differences in left ventricular thickness to cavity radius, or "relative wall thickness" architecture rather than to any alteration in the at end-diastole,21, 22 remained constant throughout properties of the myocardial fibres themselves.20 childhood, varying over a similarly s ...
... secondary to regional differences in left ventricular thickness to cavity radius, or "relative wall thickness" architecture rather than to any alteration in the at end-diastole,21, 22 remained constant throughout properties of the myocardial fibres themselves.20 childhood, varying over a similarly s ...
measuring the heart rate
... Heart rate is measured by finding the pulse of the body. This pulse rate can be measured at any point on the body where the artery's pulsation is transmitted to the surface by pressuring it with the index and middle fingers; often it is compressed against an underlying structure like bone. The thumb ...
... Heart rate is measured by finding the pulse of the body. This pulse rate can be measured at any point on the body where the artery's pulsation is transmitted to the surface by pressuring it with the index and middle fingers; often it is compressed against an underlying structure like bone. The thumb ...
Stretch-induced modifications of myocardial performance: from
... The purpose of this review is to give an integrative view of the effect of stetch on the myocardium from ventricular function changes to cellular and molecular mechanisms. The general approach will be to discussthe cellular and molecular events which can explain the findings obtained in the whole ve ...
... The purpose of this review is to give an integrative view of the effect of stetch on the myocardium from ventricular function changes to cellular and molecular mechanisms. The general approach will be to discussthe cellular and molecular events which can explain the findings obtained in the whole ve ...
Cardiac Rehabilitation for Patients with Chronic Heart Failure.
... seems to be related also to peripheral changes in blood flow, endothelial and muscles function. The mechanisms of the dyspnea include: abnormalities in pulmonary blood flow distribution at rest and at maximal exercise, excessive production of lactates, increase in the pulmonary deadspace, fatigue of ...
... seems to be related also to peripheral changes in blood flow, endothelial and muscles function. The mechanisms of the dyspnea include: abnormalities in pulmonary blood flow distribution at rest and at maximal exercise, excessive production of lactates, increase in the pulmonary deadspace, fatigue of ...
Resting heart rate as a tool for risk stratification in primary
... While classical, established cardiovascular risk factors, such as arterial hypertension (HR=4.80; p<0.0001), hyperlipidaemia (HR=2.16; p<0.0001), and diabetes mellitus (HR=2.87; p<0.0001), demonstrated significantly increased HRs within the study cohort, neither a cut-off value of 70 bpm nor a study ...
... While classical, established cardiovascular risk factors, such as arterial hypertension (HR=4.80; p<0.0001), hyperlipidaemia (HR=2.16; p<0.0001), and diabetes mellitus (HR=2.87; p<0.0001), demonstrated significantly increased HRs within the study cohort, neither a cut-off value of 70 bpm nor a study ...
PowerPoint
... distribute orders to entire body and it controls brain , so heart is dominating the entire body. 2. Heart has a vital role in understanding , God speaks to atheists and skeptics saying: (They have hearts wherewith they understand not). 3. In many verses Qur’an mentioned that heart has an important r ...
... distribute orders to entire body and it controls brain , so heart is dominating the entire body. 2. Heart has a vital role in understanding , God speaks to atheists and skeptics saying: (They have hearts wherewith they understand not). 3. In many verses Qur’an mentioned that heart has an important r ...
Secrets of The Heart Between Science and Belief
... distribute orders to entire body and it controls brain , so heart is dominating the entire body. 2. Heart has a vital role in understanding , god speaks to atheists and skeptics saying: (They have hearts wherewith they understand not). 3. In many verses Qur’an mentioned that heart has an important r ...
... distribute orders to entire body and it controls brain , so heart is dominating the entire body. 2. Heart has a vital role in understanding , god speaks to atheists and skeptics saying: (They have hearts wherewith they understand not). 3. In many verses Qur’an mentioned that heart has an important r ...
Digoxin - Webstercare
... Uses”, digoxin has been used in the treatment of heart conditions such as heart failure (HF) and atrial fibrillation (AF). In more recent times, digoxin is no longer considered first-line therapy for these conditions. The latest evidence suggests that digoxin has a very limited place in therapy due ...
... Uses”, digoxin has been used in the treatment of heart conditions such as heart failure (HF) and atrial fibrillation (AF). In more recent times, digoxin is no longer considered first-line therapy for these conditions. The latest evidence suggests that digoxin has a very limited place in therapy due ...
The Heart_ Pressure-Propulsion Pump or Organ of Impedance?
... of America (HFSA), the American College of Cardiology Foundation/American Heart Association (ACCF/AHA), as well as the European Society of Cardiology (ESA) therefore recommend the use of vasodilators and deemphasize the use of inotropes in the management of acute heart failure syndromes.11 It is of ...
... of America (HFSA), the American College of Cardiology Foundation/American Heart Association (ACCF/AHA), as well as the European Society of Cardiology (ESA) therefore recommend the use of vasodilators and deemphasize the use of inotropes in the management of acute heart failure syndromes.11 It is of ...
AHA Scientific Statement
... ERP and ERS have been areas of substantial focus over the past 2 decades, and many elegant studies have contributed to our current understanding.16,23,33–35 Some controversy exists as to whether the electrocardiographic findings represent ER, late depolarization, or neither.36,37 The repolarization ...
... ERP and ERS have been areas of substantial focus over the past 2 decades, and many elegant studies have contributed to our current understanding.16,23,33–35 Some controversy exists as to whether the electrocardiographic findings represent ER, late depolarization, or neither.36,37 The repolarization ...
Using the Surface Electrocardiogram to Localize the Origin of
... AIV = anterior interventricular vein; GCV = great cardiac vein; AMC = aortomitral continuity; ASOV = aortic sinus of Valsalva; RBBB/LBBB = right/ left bundle branch block; LCC = left coronary cusp; RCC = right coronary cusp; OT = outflow tract; MA = mitral ...
... AIV = anterior interventricular vein; GCV = great cardiac vein; AMC = aortomitral continuity; ASOV = aortic sinus of Valsalva; RBBB/LBBB = right/ left bundle branch block; LCC = left coronary cusp; RCC = right coronary cusp; OT = outflow tract; MA = mitral ...
Heart Failure Patient Supplement
... Some medicines may have side-effects that make you feel sick. Tell your doctor immediately. Continue to work with your doctor to find the medicines that will work best for YOU. Remember, you want to get the benefits of the medicines you are taking but have little or no side-effects. ...
... Some medicines may have side-effects that make you feel sick. Tell your doctor immediately. Continue to work with your doctor to find the medicines that will work best for YOU. Remember, you want to get the benefits of the medicines you are taking but have little or no side-effects. ...
Images and Case Reports in Arrhythmia and Electrophysiology
... 61-year-old man with nonischemic cardiomyopathy (left ventricular ejection fraction, 20%) underwent ventricular tachycardia (VT) ablation for recurrent implantable cardioverter-defibrillator shocks despite antiarrhythmic drugs. The patient had undergone a combined endocardial/ epicardial VT ablation ...
... 61-year-old man with nonischemic cardiomyopathy (left ventricular ejection fraction, 20%) underwent ventricular tachycardia (VT) ablation for recurrent implantable cardioverter-defibrillator shocks despite antiarrhythmic drugs. The patient had undergone a combined endocardial/ epicardial VT ablation ...
Arrhythmogenic Right Ventricular Dysplasia
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
Dual-Chamber Pacing or Ventricular Backup Pacing in Patients With
... *VF indicates ventricular fibrillation; LVEF, left ventricular ejection fraction; VT, ventricular tachycardia; NSVT, nonsustained VT; EPS, electrophysiology study; CABG, coronary artery bypass graft; and PCI, percutaneous coronary intervention. ...
... *VF indicates ventricular fibrillation; LVEF, left ventricular ejection fraction; VT, ventricular tachycardia; NSVT, nonsustained VT; EPS, electrophysiology study; CABG, coronary artery bypass graft; and PCI, percutaneous coronary intervention. ...
The QT interval: Too long, too short or just right - Tel
... reached adulthood without developing arrhythmic symptoms have been reported.4,5 Population studies also show that relatively few males and females have QTc intervals shorter than 360 and 370 ms,1–5,7 respectively, and these values probably should be regarded as “short.” A diagnosis of SQTS should be ...
... reached adulthood without developing arrhythmic symptoms have been reported.4,5 Population studies also show that relatively few males and females have QTc intervals shorter than 360 and 370 ms,1–5,7 respectively, and these values probably should be regarded as “short.” A diagnosis of SQTS should be ...
A Note from the Chief 3 CIVT 5 Heart Failure and Transplant
... With the aging of the population, heart failure is on the rise in America. Almost five million people have heart failure already, and 400,000 new cases are diagnosed every year. The causes are many—frequently, heart failure can be the end stage of another type of heart disease, such as coronary arte ...
... With the aging of the population, heart failure is on the rise in America. Almost five million people have heart failure already, and 400,000 new cases are diagnosed every year. The causes are many—frequently, heart failure can be the end stage of another type of heart disease, such as coronary arte ...
Effects of mitral valve regurgitation in the dog on the right ventricle
... atrial pressure increases to cause pulmonary capillary pressure to rise which leads to pulmonary edema (transudation of fluid from the capillary spaces into the lung tissues and alveoli). When the normal compliance of the left atrium cannot be maintained to accommodate the regurgitant volume the LA ...
... atrial pressure increases to cause pulmonary capillary pressure to rise which leads to pulmonary edema (transudation of fluid from the capillary spaces into the lung tissues and alveoli). When the normal compliance of the left atrium cannot be maintained to accommodate the regurgitant volume the LA ...
Should rhythm control be preferred in younger atrial fibrillation
... grows older, clinicians will more frequently see this disease in their clinic population. In order to most effectively treat this disorder, physicians need to understand the key issues, including the use of rhythm control versus ventricular rate control and how to reduce the risk of ischemic stroke, ...
... grows older, clinicians will more frequently see this disease in their clinic population. In order to most effectively treat this disorder, physicians need to understand the key issues, including the use of rhythm control versus ventricular rate control and how to reduce the risk of ischemic stroke, ...
Pharmacology and the Nursing Process, 4th ed. Lilley/Harrington
... Cardiac Glycosides: Adverse Effects (cont’d) ...
... Cardiac Glycosides: Adverse Effects (cont’d) ...
A summary perspective on the clinical
... the pathological and functional substrate of myocardium and excite-conducting tissue. It is possible that even physiological changes of cardiac autonomic influences actuating on an injured substrate are able to induce arrhythmias. In Chagas’ disease, the isolated or combined lesions of variable inte ...
... the pathological and functional substrate of myocardium and excite-conducting tissue. It is possible that even physiological changes of cardiac autonomic influences actuating on an injured substrate are able to induce arrhythmias. In Chagas’ disease, the isolated or combined lesions of variable inte ...
Chapter 96 - Extras Springer
... irregular cannon A waves in the jugular venous pulse, varying intensity of the first heart sound, beat-to-beat changes in the systolic blood pressure. • Independent beating of atria and ventricles during VT can result in “capture” or “fusion beats.” • Ninety percent of cases of VT have a QRS duratio ...
... irregular cannon A waves in the jugular venous pulse, varying intensity of the first heart sound, beat-to-beat changes in the systolic blood pressure. • Independent beating of atria and ventricles during VT can result in “capture” or “fusion beats.” • Ninety percent of cases of VT have a QRS duratio ...
Atrial Fibrillation In Heart Failure
... veins have been considered the main site of origin of such triggers, but ectopic activity originating in other sites such as the superior vena cava, oblique vein of Marshall, coronary sinus and the terminal crest have also been implicated.6 Following AF initiation, propagation of atrial fibrillation ...
... veins have been considered the main site of origin of such triggers, but ectopic activity originating in other sites such as the superior vena cava, oblique vein of Marshall, coronary sinus and the terminal crest have also been implicated.6 Following AF initiation, propagation of atrial fibrillation ...
EKG Basics - jan.ucc.nau.edu
... the wave of depolarization is generally moving away from the positive sensing electrode, then the electrode will record a negative deflection below the isoelectric line on the EKG ...
... the wave of depolarization is generally moving away from the positive sensing electrode, then the electrode will record a negative deflection below the isoelectric line on the EKG ...