Cardiac structure and function
... (which is from RA to LL), a positive deflection (P wave) would result in that lead. • Since the ventricular muscle is much thicker in the left than in the right ventricle, the summated depolarization of the two ventricles is downwards and toward the left leg: this produces again a positive deflectio ...
... (which is from RA to LL), a positive deflection (P wave) would result in that lead. • Since the ventricular muscle is much thicker in the left than in the right ventricle, the summated depolarization of the two ventricles is downwards and toward the left leg: this produces again a positive deflectio ...
Atrial Tachycardia Atrial Fibrillation Atrial Flutter AV Nodal Reentrant
... minute. Signs and symptoms often experienced with atrial flutter are similar to those of atrial fibrillation, such as a pounding heart rate or pulse, shortness of breath, or dizziness. ...
... minute. Signs and symptoms often experienced with atrial flutter are similar to those of atrial fibrillation, such as a pounding heart rate or pulse, shortness of breath, or dizziness. ...
Atrial Tachycardia
... minute. Signs and symptoms often experienced with atrial flutter are similar to those of atrial fibrillation, such as a pounding heart rate or pulse, shortness of breath, or dizziness. ...
... minute. Signs and symptoms often experienced with atrial flutter are similar to those of atrial fibrillation, such as a pounding heart rate or pulse, shortness of breath, or dizziness. ...
INTRAOPERATIVE VENTRICULAR BIGEMINY: REPORT OF 5 CASES
... beats manifest as a normal QRS complex followed immediately by an abnormal one and a prolonged pause of electrical activity, then by a normal QRS complex. They can be felt as extra peripheral pulse beats. Sometimes due to inadequate ventricular filling, they may be perceived as missed beats. PVCs ar ...
... beats manifest as a normal QRS complex followed immediately by an abnormal one and a prolonged pause of electrical activity, then by a normal QRS complex. They can be felt as extra peripheral pulse beats. Sometimes due to inadequate ventricular filling, they may be perceived as missed beats. PVCs ar ...
Atrial Fibrillation - Carolina Navika 2015
... repetitive pattern ▪ Ventricular rate usually 90-170bpm ▪ QRS complexes are narrow, unless AV conduction through Bundle of His is abnormal ...
... repetitive pattern ▪ Ventricular rate usually 90-170bpm ▪ QRS complexes are narrow, unless AV conduction through Bundle of His is abnormal ...
APII Test 2 Guided Study
... Know the pathway of blood through the heart and body. Know the thickness of heart and blood vessel walls and how structure is related to function. Be able to calculate cardiac cycle, cardiac output, stroke volume, heart rate. What influences these factors? Know the parts and pathway of the intrinsic ...
... Know the pathway of blood through the heart and body. Know the thickness of heart and blood vessel walls and how structure is related to function. Be able to calculate cardiac cycle, cardiac output, stroke volume, heart rate. What influences these factors? Know the parts and pathway of the intrinsic ...
n°30 June 2016
... He quickly appreciated the limitations of programmed electrical stimulation in investigating the factors modulating cardiac arrhythmias. He turned to Holter recording as a tool for dissecting the modifiers of the substrate, especially the autonomic nervous system. Philippe introduced the concept of ...
... He quickly appreciated the limitations of programmed electrical stimulation in investigating the factors modulating cardiac arrhythmias. He turned to Holter recording as a tool for dissecting the modifiers of the substrate, especially the autonomic nervous system. Philippe introduced the concept of ...
Lesson 10 Effect of exercise on the CVS
... Comparison of Maximal CO in Trained and Untrained Individuals When comparing the Cardiac Output during maximal exercise in trained and untrained individuals, it can be seen that the endurance athlete achieves a larger CO mainly because of a relatively greater increase in stroke volume. ...
... Comparison of Maximal CO in Trained and Untrained Individuals When comparing the Cardiac Output during maximal exercise in trained and untrained individuals, it can be seen that the endurance athlete achieves a larger CO mainly because of a relatively greater increase in stroke volume. ...
The molecular architecture of the heart`s conduction system in health
... the ventricles and, thereby, a delay between atrial and ventricular systole) and the His-Purkinje system (responsible for fast action potential conduction throughout the ventricles and, thereby, the synchronised contraction of the ventricles) - they were discovered in the late 19th and early 20th ce ...
... the ventricles and, thereby, a delay between atrial and ventricular systole) and the His-Purkinje system (responsible for fast action potential conduction throughout the ventricles and, thereby, the synchronised contraction of the ventricles) - they were discovered in the late 19th and early 20th ce ...
Heart - KingsfieldBiology
... ventricles. important delay of about 0.1s. Ventricles contract shortly after the atria, from the bottom up, squeezing blood upwards into the arteries. The blood can't go into the atria because of the ...
... ventricles. important delay of about 0.1s. Ventricles contract shortly after the atria, from the bottom up, squeezing blood upwards into the arteries. The blood can't go into the atria because of the ...
Supraventricular Arrhythmias - Aultman Cardiology Fellowship
... • Triggered Activity – Small depolarizations during or just after repolarization (phases 3 or 4) which can trigger a new depolarization. ...
... • Triggered Activity – Small depolarizations during or just after repolarization (phases 3 or 4) which can trigger a new depolarization. ...
EKG Recognition: When to Worry
... Make sure that it’s real! • Artifact can look like arrhythmias and even asystole • Lead on the patient? • Look in another channel/lead • Asystole artifact: look for your pleth wave tracing or be happy that you have EKG artifact in your EEG ...
... Make sure that it’s real! • Artifact can look like arrhythmias and even asystole • Lead on the patient? • Look in another channel/lead • Asystole artifact: look for your pleth wave tracing or be happy that you have EKG artifact in your EEG ...
What Does This 12-Lead ECG Show?
... 12-Lead ECG Variations in AMI and Angina Baseline Ischemia—tall or inverted T wave (infarct), ST segment may be depressed (angina) Injury—elevated ST segment, T wave may invert ...
... 12-Lead ECG Variations in AMI and Angina Baseline Ischemia—tall or inverted T wave (infarct), ST segment may be depressed (angina) Injury—elevated ST segment, T wave may invert ...
emboj7601868-sup
... Germany). Integrity of the cell and identity of If was tested by applying 2 mM cesium followed by a washout with bath solution which restored the original current amplitude. Data were acquired using an Axopatch 200B amplifier and pClamp7 software or a MultiClamp 700A/B amplifier and pClamp9/10 softw ...
... Germany). Integrity of the cell and identity of If was tested by applying 2 mM cesium followed by a washout with bath solution which restored the original current amplitude. Data were acquired using an Axopatch 200B amplifier and pClamp7 software or a MultiClamp 700A/B amplifier and pClamp9/10 softw ...
Anti-arrhythmic Drugs - Ipswich-Year2-Med-PBL-Gp-2
... VW Classification of Antiarrythmics Class 2 - Beta blockers which reducing sympathetic effects on heart rate and force of contraction Class 3 - Block potassium channels to prolong repolarization, and the refractory period – which shows as prolongation of QT (>450 msec) interval setting up platform ...
... VW Classification of Antiarrythmics Class 2 - Beta blockers which reducing sympathetic effects on heart rate and force of contraction Class 3 - Block potassium channels to prolong repolarization, and the refractory period – which shows as prolongation of QT (>450 msec) interval setting up platform ...
12LeadBlocks_1_
... • Lidocaine contraindicated in patients with precursors to CHB unless TCP in place and ready ...
... • Lidocaine contraindicated in patients with precursors to CHB unless TCP in place and ready ...
BE III PG 1-5
... the anatomy of the heart. The second part discussed the production and interpretation of the electrocardiogram (ECG). This part reviews the use of the ECG to diagnose cardiac arrhythmias, such as premature beats and escape beats, supraventricular rhythms, ventricular rhythms, and disorders of atriov ...
... the anatomy of the heart. The second part discussed the production and interpretation of the electrocardiogram (ECG). This part reviews the use of the ECG to diagnose cardiac arrhythmias, such as premature beats and escape beats, supraventricular rhythms, ventricular rhythms, and disorders of atriov ...
Blood pressure: 150/100, occasionally higher Elevated levels of
... Right ventricle: smaller workload because it only pumps blood to lungs at lower pressure and resistance to blood flow is small Left ventricle: THICKEST deliver to greater distances and to those with high resistance to bloodflow, so higher pressure. ...
... Right ventricle: smaller workload because it only pumps blood to lungs at lower pressure and resistance to blood flow is small Left ventricle: THICKEST deliver to greater distances and to those with high resistance to bloodflow, so higher pressure. ...
Cardiology: The Equine Heart
... valves located between the atria, ventricles, and their associated blood vessels, is essential. The sinoatrial node, located in the right atria, is the heart’s pacemaker. It is responsible for controlling the rate of atrial and ventricular contractions. It achieves this by initiating an electrical s ...
... valves located between the atria, ventricles, and their associated blood vessels, is essential. The sinoatrial node, located in the right atria, is the heart’s pacemaker. It is responsible for controlling the rate of atrial and ventricular contractions. It achieves this by initiating an electrical s ...
Hypertrophic Cardiomyopathy
... Disease of the heart muscle Also known as HCM Mutation of one out of a number of genes Affects 1 in 500 people Famous for being leading cause of sudden cardiac death in young athletes ...
... Disease of the heart muscle Also known as HCM Mutation of one out of a number of genes Affects 1 in 500 people Famous for being leading cause of sudden cardiac death in young athletes ...
Electrocardiogram of the humpback whale (Megaptera
... I50 and 200 ms aud rhe QT interval between 650 and 700 ms. The S wave is not visible in this lead. ...
... I50 and 200 ms aud rhe QT interval between 650 and 700 ms. The S wave is not visible in this lead. ...
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.