Heart Physiology part 1
... The ventricular cells of the heart beat only 20-40 times per minute Without some unifying system to control them the heart would be an uncoordinated and inefficient pump ...
... The ventricular cells of the heart beat only 20-40 times per minute Without some unifying system to control them the heart would be an uncoordinated and inefficient pump ...
GP guide for the investigation of patients with
... www.inhealthgroup.com or request via email to [email protected]. Please specify the presenting ...
... www.inhealthgroup.com or request via email to [email protected]. Please specify the presenting ...
1 : A 60-year-old male patient on aspirin, nitrates, and a beta blocker
... stable angina, presents to the ER with a history of two to three episodes of more severe and longlasting anginal chest pain each day over the past 3 days. His ECG and cardiac enzymes are normal. The best course of action of the following is to a. Admit the patient and begin intravenous digoxin b. Ad ...
... stable angina, presents to the ER with a history of two to three episodes of more severe and longlasting anginal chest pain each day over the past 3 days. His ECG and cardiac enzymes are normal. The best course of action of the following is to a. Admit the patient and begin intravenous digoxin b. Ad ...
Arrhythmias
... Heart Block: When electrical impulses generated in the upper chambers of the heart are not properly transmitted to the lower chambers, heart block occurs. Then, the heart beats too slowly, reducing the oxygen supply to the body and brain. Long QT Syndrome (LQTS): A disorder of the electrical system ...
... Heart Block: When electrical impulses generated in the upper chambers of the heart are not properly transmitted to the lower chambers, heart block occurs. Then, the heart beats too slowly, reducing the oxygen supply to the body and brain. Long QT Syndrome (LQTS): A disorder of the electrical system ...
Arrythmogenic Right Ventricular Cardiomyopathy (ARVC, Boxer
... quite variable. It also known as “Boxer Cardiomyopathy” and is characterized by irregular and rapid ventricular arrhythmias. The disease may take one of three forms: 1) asymptomatic with premature ventricular beats (PVCs) 2) symptomatic with PVCs resulting in collapse/fainting 3) heart failure due t ...
... quite variable. It also known as “Boxer Cardiomyopathy” and is characterized by irregular and rapid ventricular arrhythmias. The disease may take one of three forms: 1) asymptomatic with premature ventricular beats (PVCs) 2) symptomatic with PVCs resulting in collapse/fainting 3) heart failure due t ...
Cardiology Services Bon Secours Hospital
... An ECG can help detect problems with your heart rate or heart rhythm – called arrhythmias. It can help doctors tell if you’re having a heart attack or if you’ve had a heart attack in the past. Sometimes an ECG can indicate if your heart is enlarged or thickened. An ECG is usually one of the firs ...
... An ECG can help detect problems with your heart rate or heart rhythm – called arrhythmias. It can help doctors tell if you’re having a heart attack or if you’ve had a heart attack in the past. Sometimes an ECG can indicate if your heart is enlarged or thickened. An ECG is usually one of the firs ...
Control of Heart Contractions
... Conducting cell group between atria and ventricle “relay station” Carries impulse to bundle of His ...
... Conducting cell group between atria and ventricle “relay station” Carries impulse to bundle of His ...
Advanced Cardiac Life Support
... 1. Monophasic: receive single burst, 1 pad to another & don’t come back. ...
... 1. Monophasic: receive single burst, 1 pad to another & don’t come back. ...
C11.2 Notes - Destiny High School
... Mr. B: Anatomy & Physiology II Chapter 11 Lesson 2 Notes Today’s Objectives: 1. Describe the mechanisms that regulate the heart. 2. Describe different types of arrhythmia, or abnormal contractility conditions that can be detected via electrocardiogram. 3. Identify the components of the conduction sy ...
... Mr. B: Anatomy & Physiology II Chapter 11 Lesson 2 Notes Today’s Objectives: 1. Describe the mechanisms that regulate the heart. 2. Describe different types of arrhythmia, or abnormal contractility conditions that can be detected via electrocardiogram. 3. Identify the components of the conduction sy ...
Heart Attack or Sudden Cardiac Arrest
... problem of the heart, when one (or more) of the arteries delivering blood to the heart is severely reduced or blocked. Oxygen in the blood cannot reach the heart muscle, and the heart muscle becomes damaged. • This damage to the heart muscle can lead to a malfunction of the heart’s electrical system ...
... problem of the heart, when one (or more) of the arteries delivering blood to the heart is severely reduced or blocked. Oxygen in the blood cannot reach the heart muscle, and the heart muscle becomes damaged. • This damage to the heart muscle can lead to a malfunction of the heart’s electrical system ...
Ventricular repolarization - Clinical View
... The QRS complex of the electrocardiogram (ECG) reflects the occurrence of an electrical wave that propagates through the heart muscle, to trigger the mechanical contraction of each heartbeat. Following each QRS is a T wave that reflects the electrical recovery or repolarization of heart cells that w ...
... The QRS complex of the electrocardiogram (ECG) reflects the occurrence of an electrical wave that propagates through the heart muscle, to trigger the mechanical contraction of each heartbeat. Following each QRS is a T wave that reflects the electrical recovery or repolarization of heart cells that w ...
Cardiac Cath and Angiocardiography
... Definition of Cardiac Catherization • Comprehensive term to describe minor surgical procedure for diagnostic evaluation or interventional (therapeutic) purposes ...
... Definition of Cardiac Catherization • Comprehensive term to describe minor surgical procedure for diagnostic evaluation or interventional (therapeutic) purposes ...
Real-Time Kymogram Detection from Cardiac Spiral CT Scans
... For all three methods the data were integrated over several detector rows. The data of 12 patients scanned with a collimation of 12×0.75 mm, a table increment of 2.8 mm/rotation, a rotation time of 0.42 s and a concurrent ECG recording (Sensation 16, Siemens, Forchheim, Germany) was used for validat ...
... For all three methods the data were integrated over several detector rows. The data of 12 patients scanned with a collimation of 12×0.75 mm, a table increment of 2.8 mm/rotation, a rotation time of 0.42 s and a concurrent ECG recording (Sensation 16, Siemens, Forchheim, Germany) was used for validat ...
Lecture 17: Cardiovascular System Electrical Activity and EKG The
... If 2 QRS waves are close together the heart is beating at a fast rate; if they are far apart the heart has a slow rate If the heart is functioning properly each P wave is followed by a QRS wave If electrical conduction between the atria and ventricles is partially or completely blocked there will be ...
... If 2 QRS waves are close together the heart is beating at a fast rate; if they are far apart the heart has a slow rate If the heart is functioning properly each P wave is followed by a QRS wave If electrical conduction between the atria and ventricles is partially or completely blocked there will be ...
Tachydysrhymias - Calgary Emergency Medicine
... One of the most common lethal errors made in arrhythmia diagnosis is to mistake VT for SVT and treat with verapamil, diltiazem, and adenosine, all of which can precipitate ventricular fibrillation in patients in VT, even if initially stable. ...
... One of the most common lethal errors made in arrhythmia diagnosis is to mistake VT for SVT and treat with verapamil, diltiazem, and adenosine, all of which can precipitate ventricular fibrillation in patients in VT, even if initially stable. ...
DESIGNED WITH THE NEW GENERATION CURRENT
... aorta artery pumping blood pulmaner time. During this time, particularly in the lungs and the left ventricle and aorta blood pumping is carried out simultaneously. Diastolic filling of the heart chambers with blood by expanding time(figure 2.1.) [2]. ...
... aorta artery pumping blood pulmaner time. During this time, particularly in the lungs and the left ventricle and aorta blood pumping is carried out simultaneously. Diastolic filling of the heart chambers with blood by expanding time(figure 2.1.) [2]. ...
PowerPoint - Electrocardiography
... No one touching the dog can move while the ECG is being recorded • Enhance lead contact with gel or alcohol Alcohol is FLAMMABLE!! ...
... No one touching the dog can move while the ECG is being recorded • Enhance lead contact with gel or alcohol Alcohol is FLAMMABLE!! ...
Dysrhythmias
... When there is an electrical block in the normal conduction pathway for ventricular depolarization it is a called a bundle branch block. This block can be permanent or intermittent and has a variety of causes. Depolarization occurs because of the principle of conductivity. This depolarization takes l ...
... When there is an electrical block in the normal conduction pathway for ventricular depolarization it is a called a bundle branch block. This block can be permanent or intermittent and has a variety of causes. Depolarization occurs because of the principle of conductivity. This depolarization takes l ...
Powerpoint
... ST depression inclusive-LVH has a 33% five-year mortality in men and a 21% five-year mortality in women Asymptomatic (silent) Q wave infarction is associated with the same risk as symptomatic infarction ST depression is poorly reproducible yet risk increases with its prevalence ...
... ST depression inclusive-LVH has a 33% five-year mortality in men and a 21% five-year mortality in women Asymptomatic (silent) Q wave infarction is associated with the same risk as symptomatic infarction ST depression is poorly reproducible yet risk increases with its prevalence ...
Supraventricular Tachycardia
... between episodes of symptoms may not be much help. However, if SVT is suspected, you may be asked to wear a small portable ECG recorder. Some types record an ECG continuously over 24 hours. Others are designed so that you can switch it on to record when you have symptoms. This is called a Holter Mon ...
... between episodes of symptoms may not be much help. However, if SVT is suspected, you may be asked to wear a small portable ECG recorder. Some types record an ECG continuously over 24 hours. Others are designed so that you can switch it on to record when you have symptoms. This is called a Holter Mon ...
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.