Rhythms That Go Bump in the Night
... confirming the clinical value of external countershock in terminating ventricular tachycardia and fibrillation and of external electric stimulation in preventing these arrhythmias. Alternating current (60 cycle, 0.15 second, 150 to 450 volts) was applied to the unopened chest with large electrodes. ...
... confirming the clinical value of external countershock in terminating ventricular tachycardia and fibrillation and of external electric stimulation in preventing these arrhythmias. Alternating current (60 cycle, 0.15 second, 150 to 450 volts) was applied to the unopened chest with large electrodes. ...
Patient Page
... arteriesfor blockages using IV dye that is injected through a catheter placed in the femoral artery located in the groin. This test is 100% diagnostic and if coronary angioplasty and stent placement is needed it will be performed at this time. This procedure requires sedation so a driver is needed. ...
... arteriesfor blockages using IV dye that is injected through a catheter placed in the femoral artery located in the groin. This test is 100% diagnostic and if coronary angioplasty and stent placement is needed it will be performed at this time. This procedure requires sedation so a driver is needed. ...
Pathophysiology Cardiac Study Guide
... 32. What is the Atrioventricular node (AV) 33. Describe the electrical impulse of the heart for one complete beat. 34. Describe the purpose and internal actions of the refractory period. 35. Explain the series of the ECG waves and what happens in each part of the P-QRS-T waves 36. What is a normal s ...
... 32. What is the Atrioventricular node (AV) 33. Describe the electrical impulse of the heart for one complete beat. 34. Describe the purpose and internal actions of the refractory period. 35. Explain the series of the ECG waves and what happens in each part of the P-QRS-T waves 36. What is a normal s ...
Cardiac Cycle
... cycle in a frog heart and: ▫ Measure and calculate the phases of the cardiac cycle. ▫ Determine the effects of temperature and chemicals on the heart ▫ Investigate the heart’s absolute refractory period and heart block ...
... cycle in a frog heart and: ▫ Measure and calculate the phases of the cardiac cycle. ▫ Determine the effects of temperature and chemicals on the heart ▫ Investigate the heart’s absolute refractory period and heart block ...
File
... Ventricular pacemaker • pacing spikes (best seen here in V4 - V6) will be seen - they may be subtle • the paced QRS complexes are abnormally wide • In this example the pacemaker starts when there is a long R - R interval following a blocked atrial premature beat (arrowed in figure below). Sinus rhy ...
... Ventricular pacemaker • pacing spikes (best seen here in V4 - V6) will be seen - they may be subtle • the paced QRS complexes are abnormally wide • In this example the pacemaker starts when there is a long R - R interval following a blocked atrial premature beat (arrowed in figure below). Sinus rhy ...
Patients referred to the BCIAP will: Who can be referred?
... expertise of specialists in both adult and pediatric cardiology along with medical genetics, to identify, screen and manage patients and families affected by an inherited heart rhythm condition. These conditions cause or predispose to palpitations, sudden fainting spells and sometimes, no symptoms a ...
... expertise of specialists in both adult and pediatric cardiology along with medical genetics, to identify, screen and manage patients and families affected by an inherited heart rhythm condition. These conditions cause or predispose to palpitations, sudden fainting spells and sometimes, no symptoms a ...
Arrhythmias in ECGs - Auckland Heart Group
... B) Atrial fibrillation C) Atrial tachycardia D) Ventricular tachycardia ...
... B) Atrial fibrillation C) Atrial tachycardia D) Ventricular tachycardia ...
Two causes in one patient for extremely low voltage on the
... left ventricular hypertrophy than any previous criteria. The concept of low QRS voltage was described initially when only three electrocardiographic leads were available. The 12-lead From the Baylor Heart and Vascular Institute and the Department of Internal Medicine, Division of Cardiology, Baylor ...
... left ventricular hypertrophy than any previous criteria. The concept of low QRS voltage was described initially when only three electrocardiographic leads were available. The 12-lead From the Baylor Heart and Vascular Institute and the Department of Internal Medicine, Division of Cardiology, Baylor ...
Ivabradine (Procoralan) for the indication chronic heart failure
... is contraindicated or not tolerated.” Posology. 5 mg twice daily. After two weeks of treatment, the dose may be increased to 7.5 mg twice daily if the resting heart rate is persistently above 60 beats per minute or reduced to 2.5 mg twice daily if the resting heart rate is persistently below 50 beat ...
... is contraindicated or not tolerated.” Posology. 5 mg twice daily. After two weeks of treatment, the dose may be increased to 7.5 mg twice daily if the resting heart rate is persistently above 60 beats per minute or reduced to 2.5 mg twice daily if the resting heart rate is persistently below 50 beat ...
Document
... nervous signalisation. Ca2+ binds to ryanodin receptor of sarcoplasmic reticulum, where it enhances the release of more Ca2+ into the cytoplasm. Ca2+ then binds troponin which changes its conformation and stops blocking the actin-myosin interaction. Contraction of muscle fibre follows as in other ty ...
... nervous signalisation. Ca2+ binds to ryanodin receptor of sarcoplasmic reticulum, where it enhances the release of more Ca2+ into the cytoplasm. Ca2+ then binds troponin which changes its conformation and stops blocking the actin-myosin interaction. Contraction of muscle fibre follows as in other ty ...
from here
... Intra-atrial pathways AV node Bundle of His Left and Right bundle branches – left anterior fascicle – left posterior fascicle ...
... Intra-atrial pathways AV node Bundle of His Left and Right bundle branches – left anterior fascicle – left posterior fascicle ...
Capture and fusion beats during atrial fibrillation and ventricular
... monomorphic VT and a structurally normal heart”.2 In patient 2, irregular RR intervals during AF could lead to rapid escalation of the pause dependent after depolarisations above a critical threshold initiating VT. On the other hand, overdrive excitation during AF could lead to Ca2+ overloading and ...
... monomorphic VT and a structurally normal heart”.2 In patient 2, irregular RR intervals during AF could lead to rapid escalation of the pause dependent after depolarisations above a critical threshold initiating VT. On the other hand, overdrive excitation during AF could lead to Ca2+ overloading and ...
This Patient Education Tool defines bundle branch block for patients
... Primary Care Clerkship at the University of Minnesota Medical School as part of the course project. The aim of the project is to present information on a medical topic in the format of a patient education handout. It does not necessarily reflect the views of the University of Minnesota Medical Schoo ...
... Primary Care Clerkship at the University of Minnesota Medical School as part of the course project. The aim of the project is to present information on a medical topic in the format of a patient education handout. It does not necessarily reflect the views of the University of Minnesota Medical Schoo ...
Chapter 6 - Boone County Schools
... • V-fib and V-tach can be corrected with defibrillation, but time is critical. • For every minute that defibrillation is delayed, victim’s chance for survival decreases by 7% to 10%. • CPR is initial care until defibrillator is available. ...
... • V-fib and V-tach can be corrected with defibrillation, but time is critical. • For every minute that defibrillation is delayed, victim’s chance for survival decreases by 7% to 10%. • CPR is initial care until defibrillator is available. ...
Electrocardiogram (ECG)
... generated by the current can be recorded by a galvanometric setting attached to a recording device. The record is called an electrocardiogram (ECG); the machine used to record the current is called an electrocardiograph. The current is measured at certain points on the body surface by bipolar limb l ...
... generated by the current can be recorded by a galvanometric setting attached to a recording device. The record is called an electrocardiogram (ECG); the machine used to record the current is called an electrocardiograph. The current is measured at certain points on the body surface by bipolar limb l ...
Reference II - Abbreviations_2015_03_01
... Hazardous Materials Incident Hypertension Intraosseous Intramuscular Intranasal Intravenous IV Push Kilogram Joule (Electrical measurement) ...
... Hazardous Materials Incident Hypertension Intraosseous Intramuscular Intranasal Intravenous IV Push Kilogram Joule (Electrical measurement) ...
Time: Monday May 2nd, 2011 5:00pm Location: Buchanan A202
... can be fatal if left untreated. In two dimensions, these reentrant arrhythmias can be modeled as one or more spiral waves in a system of excitable media. The appearance of spiral waves due to structural inhomogeneities – such as damaged tissue or scar tissue is well-studied and well-explained. Howev ...
... can be fatal if left untreated. In two dimensions, these reentrant arrhythmias can be modeled as one or more spiral waves in a system of excitable media. The appearance of spiral waves due to structural inhomogeneities – such as damaged tissue or scar tissue is well-studied and well-explained. Howev ...
to the Session 1 notes
... than AVN, but has LONGER refractory period. It may conduct unidirectionally or bidirectionally. Anterograde (atrium to ventricle) conduction allows all or part of ventricle to be depolarised earlier than would occur if the impulse had travelled down usual slower route through AV node (i.e. this is c ...
... than AVN, but has LONGER refractory period. It may conduct unidirectionally or bidirectionally. Anterograde (atrium to ventricle) conduction allows all or part of ventricle to be depolarised earlier than would occur if the impulse had travelled down usual slower route through AV node (i.e. this is c ...
Word version of this scenario
... A 64 year old NZ European man is brought to the Emergency Department by ambulance. He had collapsed, temporarily lost consciousness and was observed to become pale at the time of collapse. When the ambulance crew arrived, it was noted that his pulse rate was very rapid. ...
... A 64 year old NZ European man is brought to the Emergency Department by ambulance. He had collapsed, temporarily lost consciousness and was observed to become pale at the time of collapse. When the ambulance crew arrived, it was noted that his pulse rate was very rapid. ...
PDF
... This paper describes and focuses on acquiring and identification of cardiac diseases using ECG waveform in LabVIEW software, which would bridge the gap between engineers and medical physicians. This model work collects the waveform of an affected person. The waveform is analyzed for diseases and the ...
... This paper describes and focuses on acquiring and identification of cardiac diseases using ECG waveform in LabVIEW software, which would bridge the gap between engineers and medical physicians. This model work collects the waveform of an affected person. The waveform is analyzed for diseases and the ...
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.