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... atrium, adjacent to coronary sinus Delay of impulse conduction allows full contraction of atrium ...
... atrium, adjacent to coronary sinus Delay of impulse conduction allows full contraction of atrium ...
Accessory pathways during normal and abnormal cardiac
... • Functional APs are present during normal heart development in avians and mammals • “physiological” APs may serve as substrate for transient AVRT in the fetus and neonate • EPDCs play an important role in the formation of the annulus fibrosis • Periostin plays an inductive role in fibrous tissue ...
... • Functional APs are present during normal heart development in avians and mammals • “physiological” APs may serve as substrate for transient AVRT in the fetus and neonate • EPDCs play an important role in the formation of the annulus fibrosis • Periostin plays an inductive role in fibrous tissue ...
What Is the Heart? Lesson Idea PreK
... children to place their hands over their hearts, using the picture to find the correct location. Then have children make a fist with one hand and look at the size of their fists. Explain that their hearts are a little larger than their fists and that their hearts are located inside their chests unde ...
... children to place their hands over their hearts, using the picture to find the correct location. Then have children make a fist with one hand and look at the size of their fists. Explain that their hearts are a little larger than their fists and that their hearts are located inside their chests unde ...
L01 Electrophysiology of Heart Cells
... □ Still see QRS because Ventricular rhythm is set by junctional/ventricular escape rhythm □ Intervals have difference because the Atrial rhythm is set apart from the ventricular rhythm Caused by Ischemia/MI Treat with Pacemaker ○ Atrial Fibrillation Multiple foci discharge in atria causing fas ...
... □ Still see QRS because Ventricular rhythm is set by junctional/ventricular escape rhythm □ Intervals have difference because the Atrial rhythm is set apart from the ventricular rhythm Caused by Ischemia/MI Treat with Pacemaker ○ Atrial Fibrillation Multiple foci discharge in atria causing fas ...
Introduction to the circulatory system
... Muscular pump whose purpose is to drive the blood into and through the arteries, to deliver it to the tissues and working muscles Considered as two separate pumps Two chambers on the right, and two chambers on the left side ...
... Muscular pump whose purpose is to drive the blood into and through the arteries, to deliver it to the tissues and working muscles Considered as two separate pumps Two chambers on the right, and two chambers on the left side ...
What is cardiac arrest? Cardiac arrest is the abrupt loss of heart
... Read more about cardiomyopathy Heart medications: Under certain conditions, various heart medications can set the stage for arrhythmias that cause sudden cardiac arrest. Paradoxically, antiarrhythmic drugs used to treat arrhythmias can sometimes produce lethal ventricular arrhythmias even at normall ...
... Read more about cardiomyopathy Heart medications: Under certain conditions, various heart medications can set the stage for arrhythmias that cause sudden cardiac arrest. Paradoxically, antiarrhythmic drugs used to treat arrhythmias can sometimes produce lethal ventricular arrhythmias even at normall ...
Drug therapy of cardiovascular diseases
... Acute myocardial infarction. Sinus tachycardia can present in more than a third of the patients with AMI but this usually decreases over time. Patients with sustained sinus tachycardia reflects a larger infarct that are more anterior with prominent left ventricular dysfunction, associated with high ...
... Acute myocardial infarction. Sinus tachycardia can present in more than a third of the patients with AMI but this usually decreases over time. Patients with sustained sinus tachycardia reflects a larger infarct that are more anterior with prominent left ventricular dysfunction, associated with high ...
The Heart
... A special characteristic of the A-V bundle is the inability, except in abnormal states, of action potentials to travel backward from the ventricles to the atria. This prevents reentry of cardiac impulses by this route from the ventricles to the atria, allowing only forward conduction from the atria ...
... A special characteristic of the A-V bundle is the inability, except in abnormal states, of action potentials to travel backward from the ventricles to the atria. This prevents reentry of cardiac impulses by this route from the ventricles to the atria, allowing only forward conduction from the atria ...
Dissection of a pig`s or sheep`s heart
... The Heart from the Inside (Anterior View) 1. Carefully cut the heart open with a longitudinal section 2. Plan your cut carefully to get a view of all the heart’s chambers. You will probably get a view like the following. ...
... The Heart from the Inside (Anterior View) 1. Carefully cut the heart open with a longitudinal section 2. Plan your cut carefully to get a view of all the heart’s chambers. You will probably get a view like the following. ...
Pacemakers - 123seminarsonly.com
... 2. Symptomatic chronotropic incompetence (failure to increase HR with exercise or increased metabolic demand) 3. 3° and advanced 2° AV block associated with any of the following: Arrhythmias that require drugs resulting in symptomatic bradycardia Sinus pauses > 3 seconds Asymptomatic escape rate < 4 ...
... 2. Symptomatic chronotropic incompetence (failure to increase HR with exercise or increased metabolic demand) 3. 3° and advanced 2° AV block associated with any of the following: Arrhythmias that require drugs resulting in symptomatic bradycardia Sinus pauses > 3 seconds Asymptomatic escape rate < 4 ...
234 Electrocardio
... A surprising number of candidates were confused about the roles of the SAN, AVN and bundle of His. Many thought that the only role of the SAN was to relay impulses from the CNS. Few candidates realized that the AVN produces the electrical activity that causes the ventricles to contract and a quarter ...
... A surprising number of candidates were confused about the roles of the SAN, AVN and bundle of His. Many thought that the only role of the SAN was to relay impulses from the CNS. Few candidates realized that the AVN produces the electrical activity that causes the ventricles to contract and a quarter ...
Weekly EMS Drill
... This brings us full circle back to our drug Atropine. Ask most providers “What is the effect of atropine?” Most, (especially nurses) will say, “It speeds up the heart rate.” Technically, that is not the case. Most of us learned in paramedic school that atropine is a parasympathetic blocker, and it ...
... This brings us full circle back to our drug Atropine. Ask most providers “What is the effect of atropine?” Most, (especially nurses) will say, “It speeds up the heart rate.” Technically, that is not the case. Most of us learned in paramedic school that atropine is a parasympathetic blocker, and it ...
Interior of the heart
... vessels. The organ works ceaselessly, beating ________________ times a day, 40 million times a year—in total clocking up _____________ heartbeats over an average lifetime. It keeps the body freshly supplied with oxygen and nutrients, while clearing away harmful waste matter. The fetal heart evolves ...
... vessels. The organ works ceaselessly, beating ________________ times a day, 40 million times a year—in total clocking up _____________ heartbeats over an average lifetime. It keeps the body freshly supplied with oxygen and nutrients, while clearing away harmful waste matter. The fetal heart evolves ...
AFIB COCHRANE
... between the two treatment groups.In AFFIRM there was a similar incidence of ischaemic stroke, bleeding and systemic embolism in the two groups. Certain malignant dysrhythmias were significantly more likely to occur in the rhythm control group. There were similar scores of cognitive assessment.In PIA ...
... between the two treatment groups.In AFFIRM there was a similar incidence of ischaemic stroke, bleeding and systemic embolism in the two groups. Certain malignant dysrhythmias were significantly more likely to occur in the rhythm control group. There were similar scores of cognitive assessment.In PIA ...
Drugs for Heart Failure
... Explain several means by which patients may control their heart failure without drugs. For each of the classes listed in the Drug Snapshot, identify representative medications and explain the mechanism of drug action, primary actions, and important adverse effects. ...
... Explain several means by which patients may control their heart failure without drugs. For each of the classes listed in the Drug Snapshot, identify representative medications and explain the mechanism of drug action, primary actions, and important adverse effects. ...
L6-Resources2OptionalslidesetECGrhythm
... (Rule of 3’s!) • Narrow Complex & Regular: – Sinus Tachycardia – Atrial Flutter – Other supraventricular Tachycardia (SVT) • AVNRT (A-V nodal reentrant tachycardias) • Atrial reciprocating tachycardia (from preexcitation, ex: WPW) • Ectopic atrial tachycardia • Other uncommon causes ...
... (Rule of 3’s!) • Narrow Complex & Regular: – Sinus Tachycardia – Atrial Flutter – Other supraventricular Tachycardia (SVT) • AVNRT (A-V nodal reentrant tachycardias) • Atrial reciprocating tachycardia (from preexcitation, ex: WPW) • Ectopic atrial tachycardia • Other uncommon causes ...
Atrioventricular Conduction Versus Heart Size From Mouse to Whale*
... From the rabbit to the elephant , the metabolic ra te per gram tissue decreases only slightly (26). Conduction velocity depends largelyon cell (fiber) diameter (27 ,28). Assuming a more or less constant cell to cell resistance, it is unlikely that with increasing length or diameter of the His bundIe ...
... From the rabbit to the elephant , the metabolic ra te per gram tissue decreases only slightly (26). Conduction velocity depends largelyon cell (fiber) diameter (27 ,28). Assuming a more or less constant cell to cell resistance, it is unlikely that with increasing length or diameter of the His bundIe ...
Giant tumor of the left ventricle presenting with sustained ventricular
... within the apical and inferolateral segments of the left ventricle (Figure F ). Endomyocardial bi‑ opsy was not performed because of the high risk of bleeding. The patient received oral anticoagulants, β‑blockers and amiodarone to diminish the risk of ventricular arrhythmia. An implantable cardio‑ ...
... within the apical and inferolateral segments of the left ventricle (Figure F ). Endomyocardial bi‑ opsy was not performed because of the high risk of bleeding. The patient received oral anticoagulants, β‑blockers and amiodarone to diminish the risk of ventricular arrhythmia. An implantable cardio‑ ...
Heart
... called the cardiac cycle. The left and right sides of the heart work simultaneously. – When the heart beats, both atria contract. – Approximately 0.1 second after the atria contract, both ventricles contract. – The repeated contraction and relaxation is known as systole and diastole. • Systole: co ...
... called the cardiac cycle. The left and right sides of the heart work simultaneously. – When the heart beats, both atria contract. – Approximately 0.1 second after the atria contract, both ventricles contract. – The repeated contraction and relaxation is known as systole and diastole. • Systole: co ...
Simulating the beating human heart Advanced Cardiac Mechanics
... Modeling the interaction of excitation and contraction of muscle fibers law for contraction is required. Calculus of the fluid behavior utilizing Optimal-transport-meshfree method (OTM) and development • The preceding excitation is modeled correctly in order to obtain a correct contraction seque ...
... Modeling the interaction of excitation and contraction of muscle fibers law for contraction is required. Calculus of the fluid behavior utilizing Optimal-transport-meshfree method (OTM) and development • The preceding excitation is modeled correctly in order to obtain a correct contraction seque ...
Atrial Fibrillation
... contract after they are stimulated by an electrical impulse. A small area of special tissue in the right atrium called the sinoatrial (SA) node starts an electrical impulse (it’s like the heart’s spark plug) that will eventually travel down special electrical tracts (AV node, Bundle Branches, Purkin ...
... contract after they are stimulated by an electrical impulse. A small area of special tissue in the right atrium called the sinoatrial (SA) node starts an electrical impulse (it’s like the heart’s spark plug) that will eventually travel down special electrical tracts (AV node, Bundle Branches, Purkin ...
Saladin, Human Anatomy 3e
... 6. Coronary blood flow is greatest in diastole, when the ventricles are relaxed. It is reduced in systole, when contraction of the ventricles compresses the coronary blood vessels. 20.4 The Cardiac Conduction System and Cardiac Muscle (p. 552) 1. The cardiac rhythm is set by its own internal pacemak ...
... 6. Coronary blood flow is greatest in diastole, when the ventricles are relaxed. It is reduced in systole, when contraction of the ventricles compresses the coronary blood vessels. 20.4 The Cardiac Conduction System and Cardiac Muscle (p. 552) 1. The cardiac rhythm is set by its own internal pacemak ...
EKG Recognition: When to Worry
... Heart rate in the triple digits (> 100) Tachycardia of more than 3 beats in a row Heart rate in the 30s (or less!) Pause of greater than 3 seconds More than 6 PVCs per minute (or more than 3 PVCs per 30 second epoch) • (Irregularly irregular heart rhythm) ...
... Heart rate in the triple digits (> 100) Tachycardia of more than 3 beats in a row Heart rate in the 30s (or less!) Pause of greater than 3 seconds More than 6 PVCs per minute (or more than 3 PVCs per 30 second epoch) • (Irregularly irregular heart rhythm) ...
By the end of this session, the student should be able to
... • It will form future transverse pericardial sinus. • Layers of heart tube • Three layers appears in the heart tube • Endocardium forming internal ...
... • It will form future transverse pericardial sinus. • Layers of heart tube • Three layers appears in the heart tube • Endocardium forming internal ...