Arrhythmia in Pediatric
... rather than the more usual re-entry mechanism. This dysrhythmia is usually more difficult to control pharmacologically than the more commen (SVT); therpy should be directed toward slowing atrioventricular conduction with digitalis or propranolol rather than relying on drug that suppress atrial autom ...
... rather than the more usual re-entry mechanism. This dysrhythmia is usually more difficult to control pharmacologically than the more commen (SVT); therpy should be directed toward slowing atrioventricular conduction with digitalis or propranolol rather than relying on drug that suppress atrial autom ...
Learning Resources - San Jose State University School of Nursing
... D Patient with complete heart block, currently has a transvenous pacemaker keeping his HR at 70 20. What is the advantage of temporary pacemakers? Can be used quickly, such as in an emergency, and are not surgically implanted: they can be easily removed when the client no longer needs pacing. 21. Wh ...
... D Patient with complete heart block, currently has a transvenous pacemaker keeping his HR at 70 20. What is the advantage of temporary pacemakers? Can be used quickly, such as in an emergency, and are not surgically implanted: they can be easily removed when the client no longer needs pacing. 21. Wh ...
apch20.ppt
... • Signal reaches AV node causing it to fire an impulse down the… • AV bundle (left & right branches) • Signal reaches heart apex and travels back up walls of ventricles causing them to contract ...
... • Signal reaches AV node causing it to fire an impulse down the… • AV bundle (left & right branches) • Signal reaches heart apex and travels back up walls of ventricles causing them to contract ...
ch 11 day 2
... FIGURE 11.6 The intrinsic conduction system of the heart. The depolarization wave initiated by the sinoatrial (SA) node passes successively through the atrial myocardium to the atrioventricular (AV) node, the AV bundle, the right and left bundle branches, and the Purkinje fibers in the ventricular ...
... FIGURE 11.6 The intrinsic conduction system of the heart. The depolarization wave initiated by the sinoatrial (SA) node passes successively through the atrial myocardium to the atrioventricular (AV) node, the AV bundle, the right and left bundle branches, and the Purkinje fibers in the ventricular ...
Heart failure Ventricular insufficiency Left heart failure (LHF
... • Cardial causes • Extracardial causes ...
... • Cardial causes • Extracardial causes ...
Classes of Drugs Used to Treat Myocardial Infarction
... therefore decreases phase 4 slope and conduction velocity; potentially serious side effects (e.g., pulmonary fibrosis; hypothyroidism) structurally related to amiodarone, but has a much smaller volume of distribution and shorter elimination half-life (13-19 hr); Class I, II, III & IV actions; contai ...
... therefore decreases phase 4 slope and conduction velocity; potentially serious side effects (e.g., pulmonary fibrosis; hypothyroidism) structurally related to amiodarone, but has a much smaller volume of distribution and shorter elimination half-life (13-19 hr); Class I, II, III & IV actions; contai ...
Supraventricular Arrhythmias - Aultman Cardiology Fellowship
... normal His Purkinje system similar to normal sinus rhythm • Distinct from ventricular tachycardia which only originates in the ventricles ...
... normal His Purkinje system similar to normal sinus rhythm • Distinct from ventricular tachycardia which only originates in the ventricles ...
Atrial_Fibrillation
... irregular ventricular contractions. The QRS complexes have normal shape, due to normal ventricular conduction. However the RR intervals vary from beat to beat. The ventricular rate may increase to greater than 150 beats per minute if uncontrolled. ...
... irregular ventricular contractions. The QRS complexes have normal shape, due to normal ventricular conduction. However the RR intervals vary from beat to beat. The ventricular rate may increase to greater than 150 beats per minute if uncontrolled. ...
PROPERTIES OF CARDIAC MUSCLES
... REFRACTORY PERIOD • Absolute Refractory Period – regardless of the strength ...
... REFRACTORY PERIOD • Absolute Refractory Period – regardless of the strength ...
Cardiovascular: Heart
... VIII. Conduction system of the Heart SA--sinoatrial node: pacemaker AV--atrioventricular node: secondary pacemaker Bundle of His: conduction fibers R and L bundle branches Purkinje fibers: through both ventricles IX. THE CARDIAC CYCLE A. Description of the Cardiac Cycle 1. The term cardiac cycle ref ...
... VIII. Conduction system of the Heart SA--sinoatrial node: pacemaker AV--atrioventricular node: secondary pacemaker Bundle of His: conduction fibers R and L bundle branches Purkinje fibers: through both ventricles IX. THE CARDIAC CYCLE A. Description of the Cardiac Cycle 1. The term cardiac cycle ref ...
Cardiovascular System 1
... Autonomic NS control: sympathetic - faster depolarization → ↑ heart rate parasympathetic - slower depolarization → ↓ heart rate 2. Myocardial Action Potential in Contractile Cells (0) initial AP depolarization - similar to other APs (voltage-gated Na+ channels) (1) slight repolarization (2) plateau ...
... Autonomic NS control: sympathetic - faster depolarization → ↑ heart rate parasympathetic - slower depolarization → ↓ heart rate 2. Myocardial Action Potential in Contractile Cells (0) initial AP depolarization - similar to other APs (voltage-gated Na+ channels) (1) slight repolarization (2) plateau ...
Disturbances of Rate and Rhythm
... Ia: slows the rate of rise of the action potential (Vmax) and prolongs its duration, slow conduction and increase refractoriness. Quinidine, procainamide, disopyramide, moricizine Ib: shortens action potential duration. DOES NOT affect conduction or refractoriness. ...
... Ia: slows the rate of rise of the action potential (Vmax) and prolongs its duration, slow conduction and increase refractoriness. Quinidine, procainamide, disopyramide, moricizine Ib: shortens action potential duration. DOES NOT affect conduction or refractoriness. ...
Control of the Cardiac Cycle
... • The shape of the ECG trace can sometimes be used to show which part of the heart is unhealthy • It can show irregular heart beat (arrhythmia) if it is in fibrillation (the beat is not co-ordinated), if it has suffered a heart attack (myocardial infarction) • It can also indicate if the heart is en ...
... • The shape of the ECG trace can sometimes be used to show which part of the heart is unhealthy • It can show irregular heart beat (arrhythmia) if it is in fibrillation (the beat is not co-ordinated), if it has suffered a heart attack (myocardial infarction) • It can also indicate if the heart is en ...
Abnormal Heart Rhythms (Arrhythmias)
... What are the symptoms of arrhythmias? Symptoms can vary, depending on the severity of the condition. If the abnormal heart rhythm (arrhythmia) comes and goes (is intermittent), the symptoms develop suddenly, and can go just as suddenly. Symptoms can include: An abnormal awareness of your heartbeat ( ...
... What are the symptoms of arrhythmias? Symptoms can vary, depending on the severity of the condition. If the abnormal heart rhythm (arrhythmia) comes and goes (is intermittent), the symptoms develop suddenly, and can go just as suddenly. Symptoms can include: An abnormal awareness of your heartbeat ( ...
presentation source
... both atria by electrical conduction from one myocardial cell to another. A. The impulse then excites the atrioventricular node, from which it is conducted by the bundle of His into the ventricles. B. The Purkinje fibers transmit the impulse into the ventricular muscle and cause it to contract. ...
... both atria by electrical conduction from one myocardial cell to another. A. The impulse then excites the atrioventricular node, from which it is conducted by the bundle of His into the ventricles. B. The Purkinje fibers transmit the impulse into the ventricular muscle and cause it to contract. ...
Pre-Lecture Quiz
... 5. A patient with pulmonary edema should be positioned upright, preferably with the legs dangling over the side of the bed, if possible. ...
... 5. A patient with pulmonary edema should be positioned upright, preferably with the legs dangling over the side of the bed, if possible. ...
Printable version
... How do I recognise if my child has SVT? In older children and adolescents, a fast heart rate is often felt as palpitations. They may feel their heart racing at unexpected times such as resting, doing homework, after exercise or eating dinner. Younger children may have difficulty describing this sens ...
... How do I recognise if my child has SVT? In older children and adolescents, a fast heart rate is often felt as palpitations. They may feel their heart racing at unexpected times such as resting, doing homework, after exercise or eating dinner. Younger children may have difficulty describing this sens ...
PEAK 485 Cardiac Anatomy / Physiology Review I. Anatomy A
... 4. AP travels slowly through the AV node, which allows time for complete ventricular filling. The AV nodal delay is about 0.1 second which is enough time for atria to contact and empty their contents into ventricles. 5. AP goes from AV node through the bundle of His and through Purkinje fibers throu ...
... 4. AP travels slowly through the AV node, which allows time for complete ventricular filling. The AV nodal delay is about 0.1 second which is enough time for atria to contact and empty their contents into ventricles. 5. AP goes from AV node through the bundle of His and through Purkinje fibers throu ...
Heart Anatomy
... arrhythmias, abnormal rhythms of the heart Atrial fibrillation: electrical activity of the heart is uncoordinated causing the upper chambers to quiver. Ventricular fibrillation: where electrical signals in the ventricles fire in a very fast uncontrolled manner. Premature ventricular contraction (PVC ...
... arrhythmias, abnormal rhythms of the heart Atrial fibrillation: electrical activity of the heart is uncoordinated causing the upper chambers to quiver. Ventricular fibrillation: where electrical signals in the ventricles fire in a very fast uncontrolled manner. Premature ventricular contraction (PVC ...
MANAGEMENT OF RAPID ATRIAL FIBRILLATION IN EMERGENCY
... Identification of atrial fibrillation Atrial fibrillation (AF) is identified by a sustained irregularly irregular heart beat and the absence of p waves on the ECG. In most instances the QRS complex will be narrow but as the ventricular response increases the QRS complex may widen due to aberrant con ...
... Identification of atrial fibrillation Atrial fibrillation (AF) is identified by a sustained irregularly irregular heart beat and the absence of p waves on the ECG. In most instances the QRS complex will be narrow but as the ventricular response increases the QRS complex may widen due to aberrant con ...
Cardiac Arrhythmias and Their Effect on Performance
... abnormal timing or morphology, ectopy (rhythm originating from somewhere other than the sinus node) should be considered. If ectopy is supraventricular (arising from above the ventricles), there should be an associated P wave and the QRS complex should be normal. If ectopy is ventricular, there will ...
... abnormal timing or morphology, ectopy (rhythm originating from somewhere other than the sinus node) should be considered. If ectopy is supraventricular (arising from above the ventricles), there should be an associated P wave and the QRS complex should be normal. If ectopy is ventricular, there will ...
Sudden Cardiac Arrest Awareness Form
... Catecholaminergic Polymorphic Ventricular Tachycardia and Brugada Syndrome – other types of electrical abnormalities that are rare but run in families. ...
... Catecholaminergic Polymorphic Ventricular Tachycardia and Brugada Syndrome – other types of electrical abnormalities that are rare but run in families. ...
No Slide Title
... intrinsic conduction system is not working properly this type of medical device my be attached to her heart. ...
... intrinsic conduction system is not working properly this type of medical device my be attached to her heart. ...