Overview of Inherited Heart Rhythm Disorders for Patients
... and treating will continue to improve. In order to effectively treat these heart conditions, early recognition is crucial. Recognizing symptoms can be difficult, as individuals may not experience any, or may fail to seek medical attention because they feel their symptoms are unrelated to a heart con ...
... and treating will continue to improve. In order to effectively treat these heart conditions, early recognition is crucial. Recognizing symptoms can be difficult, as individuals may not experience any, or may fail to seek medical attention because they feel their symptoms are unrelated to a heart con ...
Atrial fibrillation
... What is AF? AF is a common and important disturbance of the electrical system of the heart. It is one of a number of disorders commonly referred to as arrhythmias or dysrhythmias , in which the heart does not beat with a normal rhythm. If not recognised and correctly treated, AF can result in signi ...
... What is AF? AF is a common and important disturbance of the electrical system of the heart. It is one of a number of disorders commonly referred to as arrhythmias or dysrhythmias , in which the heart does not beat with a normal rhythm. If not recognised and correctly treated, AF can result in signi ...
Origin and Clinical Aspects of AV Heart Blocks
... • May occur in otherwise healthy persons • Usually transient and reversible, mostly resolving when the underlying condition is corrected • May progress to more serious blocks (particularly if it occurs early in myocardial infarction) ...
... • May occur in otherwise healthy persons • Usually transient and reversible, mostly resolving when the underlying condition is corrected • May progress to more serious blocks (particularly if it occurs early in myocardial infarction) ...
Circulatory System Activities Packet 2015
... 2. Which blood vessel has a thicker smooth muscle layer? Why? ...
... 2. Which blood vessel has a thicker smooth muscle layer? Why? ...
AF –pathophysiology and medical management
... • AF lasting <1 wk – cardioversion -using oral flecainide, propafenone, dofetilide, and intravenous ibutilide. • For longer duration- iv dofetilide( also amiodarone and ibutilide may be useful) • Single oral dose of propafenone or flecainide – in recent onset AF (pill in the pocket) ...
... • AF lasting <1 wk – cardioversion -using oral flecainide, propafenone, dofetilide, and intravenous ibutilide. • For longer duration- iv dofetilide( also amiodarone and ibutilide may be useful) • Single oral dose of propafenone or flecainide – in recent onset AF (pill in the pocket) ...
Wolff-Parkinson-White Syndrome: An Uncommon Cause of
... II, III, and aVF) or as a posterior wall MI (seen as a large R wave in leads V1–V3). Apparent wide complex tachycardia after ST-segment elevation MI has been reported.10 The short PR interval is evident in most leads, whereas the delta wave is usually best seen in the precordial leads. It is importa ...
... II, III, and aVF) or as a posterior wall MI (seen as a large R wave in leads V1–V3). Apparent wide complex tachycardia after ST-segment elevation MI has been reported.10 The short PR interval is evident in most leads, whereas the delta wave is usually best seen in the precordial leads. It is importa ...
Chapter 20 - Circulatory
... off CO2 and taking up O2. The left side of the heart (left atrium and left ventricle) receives oxygenated blood (high in O2) from the lungs and pumps it to every cell in the body. ...
... off CO2 and taking up O2. The left side of the heart (left atrium and left ventricle) receives oxygenated blood (high in O2) from the lungs and pumps it to every cell in the body. ...
Recommendations for interpretation of 12
... diagnosis and clinical assessment. When indicated the referral options for risk stratification and cardiovascular management are briefly addressed, although for more detailed and elaborated recommendations concerning eligibility for sports participation we refer to other specific guidelines.28 – 32 ...
... diagnosis and clinical assessment. When indicated the referral options for risk stratification and cardiovascular management are briefly addressed, although for more detailed and elaborated recommendations concerning eligibility for sports participation we refer to other specific guidelines.28 – 32 ...
BME 301 - Rice University
... SV = CO/HR = (5.5 L/minute) / (75 beats/minute) = 0.073 L = 73 mL per beat (4.9 L) / (5.5 L/minute) = 0.89 minutes = 53.5 seconds 4. Explain why it is important to consider “additive procedures” when analyzing the cost effectiveness of new medical technologies. Give a specific example that was discu ...
... SV = CO/HR = (5.5 L/minute) / (75 beats/minute) = 0.073 L = 73 mL per beat (4.9 L) / (5.5 L/minute) = 0.89 minutes = 53.5 seconds 4. Explain why it is important to consider “additive procedures” when analyzing the cost effectiveness of new medical technologies. Give a specific example that was discu ...
The Evolution of ICD Therapy:
... Bradycardia with congestive heart failure Atrial and/or ventricular ectopic arrhythmia Reentrant tachycardias During pulse generator replacement ...
... Bradycardia with congestive heart failure Atrial and/or ventricular ectopic arrhythmia Reentrant tachycardias During pulse generator replacement ...
Autoregulation of a Total Artificial Heart in Man
... When the natural heart increases its rate both right and left ventricles respond similarly; thus, that is not the mechanism by which autoregulation of outputs between the two ventricles is maintained. To use rate to achieve this purpose the ventricles would have to be uncoupled and each would need t ...
... When the natural heart increases its rate both right and left ventricles respond similarly; thus, that is not the mechanism by which autoregulation of outputs between the two ventricles is maintained. To use rate to achieve this purpose the ventricles would have to be uncoupled and each would need t ...
TREATMENT IN BRADYCARDIA
... – Atropine in acute myocardial infarction – Chronic medical therapy for symptomatic sinus bradycardia is usually not effective – Pacemarker ...
... – Atropine in acute myocardial infarction – Chronic medical therapy for symptomatic sinus bradycardia is usually not effective – Pacemarker ...
Heart Valves
... nodes, heart muscle, and coronary arteries through sympathetic neurons • Cardioinhibitory center inhibits SA and AV nodes through parasympathetic fibers in the vagus nerves ...
... nodes, heart muscle, and coronary arteries through sympathetic neurons • Cardioinhibitory center inhibits SA and AV nodes through parasympathetic fibers in the vagus nerves ...
physicalexam1b
... rate refers to the number of palpable arterial pulse waves/minute • In normal animals heart rate and pulse rate are equal • Arterial pulses may be palpated at several locations • Pulse deficit (heart rate ↑ pulse rate↓) • Pulse is described as strong, bounding, weak, thready, or other non-specific t ...
... rate refers to the number of palpable arterial pulse waves/minute • In normal animals heart rate and pulse rate are equal • Arterial pulses may be palpated at several locations • Pulse deficit (heart rate ↑ pulse rate↓) • Pulse is described as strong, bounding, weak, thready, or other non-specific t ...
The Circulatory System - Monroe
... We already know that the heart is made of cardiac muscle. We also know that muscles need to work in pairs. The heart relaxes and contracts to do its ...
... We already know that the heart is made of cardiac muscle. We also know that muscles need to work in pairs. The heart relaxes and contracts to do its ...
hypoplastic left heart syndrome
... How is hypoplastic left heart syndrome diagnosed? Hypoplastic left heart syndrome may be detected on an antenatal ultrasound, but may also be found after a baby is born. As the left side of the heart and aorta is underdeveloped it cannot provide the body with enough blood supply. The right side of ...
... How is hypoplastic left heart syndrome diagnosed? Hypoplastic left heart syndrome may be detected on an antenatal ultrasound, but may also be found after a baby is born. As the left side of the heart and aorta is underdeveloped it cannot provide the body with enough blood supply. The right side of ...
Chapter 20 - Martini
... • Depolarization spreads via gap junctions in intercalated disks • Rate can be adjusted by ANS ...
... • Depolarization spreads via gap junctions in intercalated disks • Rate can be adjusted by ANS ...
Sudden Cardiac Arrest Information Sheet
... As the leading cause of death in the U.S., there are more than 300,000 cardiac arrests outside hospitals each year, with nine out of 10 resulting in death. Thousands of sudden cardiac arrests occur among youth, as it is the #2 cause of death under 25 and the #1 killer of student athletes during exer ...
... As the leading cause of death in the U.S., there are more than 300,000 cardiac arrests outside hospitals each year, with nine out of 10 resulting in death. Thousands of sudden cardiac arrests occur among youth, as it is the #2 cause of death under 25 and the #1 killer of student athletes during exer ...
Sheep Heart Dissection Lab
... 3. Examine the dorsal surface of the heart (Figure 1). Locate the stumps of two relatively thinwalled blood vessels that enter the right atrium. Demonstrate this connection by passing a slender probe through them. The upper vessel is the superior vena cava, and the lower one is the inferior vena cav ...
... 3. Examine the dorsal surface of the heart (Figure 1). Locate the stumps of two relatively thinwalled blood vessels that enter the right atrium. Demonstrate this connection by passing a slender probe through them. The upper vessel is the superior vena cava, and the lower one is the inferior vena cav ...
Is Phonocardiogram Gating a Reliable Alternative to ECG
... Similar to other applications of clinical MRI, cardiac MR (CMR) is moving toward imaging at ultrahigh field strengths (≥ 7 Tesla) due to potential gains associated with increasing field strengths. Beside the well-known challenges intrinsically tied to all imaging at ultrahigh field strengths, CMR is ...
... Similar to other applications of clinical MRI, cardiac MR (CMR) is moving toward imaging at ultrahigh field strengths (≥ 7 Tesla) due to potential gains associated with increasing field strengths. Beside the well-known challenges intrinsically tied to all imaging at ultrahigh field strengths, CMR is ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.