Regulation of Cardiac Output Effects of Autonomic Antagonists on
... epicardium near the SAN and AVN • Right vagus nerve → SAN mostly, inhibits SAN firing • Left vagus nerve → AVN mostly, delay AV conduction or even cause complete heart block • Neurotransmitter is ACh, but the SAN and AVN are rich in acetylcholinesterase • ACh directly activates KACh current so e ...
... epicardium near the SAN and AVN • Right vagus nerve → SAN mostly, inhibits SAN firing • Left vagus nerve → AVN mostly, delay AV conduction or even cause complete heart block • Neurotransmitter is ACh, but the SAN and AVN are rich in acetylcholinesterase • ACh directly activates KACh current so e ...
Signal-Averaged Electrocardiography
... electrocardiography, heart rate variability, severe ventricular arrhythmia on ambulatory electrocardiography, left ventricular ejection fraction, and electrophysiological studies in predicting risk major arrhythmic events (MAE) after a myocardial infarction (MI). There were variations between the st ...
... electrocardiography, heart rate variability, severe ventricular arrhythmia on ambulatory electrocardiography, left ventricular ejection fraction, and electrophysiological studies in predicting risk major arrhythmic events (MAE) after a myocardial infarction (MI). There were variations between the st ...
Older Woman With Worsening Weakness, Dyspnea on Exertion, and
... On admission, the patient appears to have a junctional rhythm of about 50 beats per minute. This rhythm can result from excessive amiodarone, β-blocker, or calcium channel blocker levels. Clearly, this patient needs to be closely monitored with telemetry, and the means of prompt intervention need to ...
... On admission, the patient appears to have a junctional rhythm of about 50 beats per minute. This rhythm can result from excessive amiodarone, β-blocker, or calcium channel blocker levels. Clearly, this patient needs to be closely monitored with telemetry, and the means of prompt intervention need to ...
The Division of Cardiology of the Children`s Hospital of Philadelphia
... personal statement regarding your career goals and interest in summer research. A letter of reference from a teacher or former mentor or employer is requested. For more information on the details of the research projects or other information, contact Dr. Victoria Vetter, Pediatric Cardiology Divisio ...
... personal statement regarding your career goals and interest in summer research. A letter of reference from a teacher or former mentor or employer is requested. For more information on the details of the research projects or other information, contact Dr. Victoria Vetter, Pediatric Cardiology Divisio ...
SBPM SSN Short Answers #3 - Columbia University Medical Center
... -Describe a very common, not necessarily life threatening dysfunction in which this wave is missing. What causes it, what is its physical manifestation and how does a healthy heart compensate for it (more specifically, how does a healthy heart maintain adequate blood flow and give at least two parts ...
... -Describe a very common, not necessarily life threatening dysfunction in which this wave is missing. What causes it, what is its physical manifestation and how does a healthy heart compensate for it (more specifically, how does a healthy heart maintain adequate blood flow and give at least two parts ...
What is atrial fibrillation? Why has my cat got atrial fibrillation? How
... heart is divided into a left and right side and there are 2 chambers on each side (one atrium and one ventricle, linked together through a valve). In the normal heart the upper chambers (the atria) contract first squeezing the blood out of the atria and into the main pumping chambers, the ventricles ...
... heart is divided into a left and right side and there are 2 chambers on each side (one atrium and one ventricle, linked together through a valve). In the normal heart the upper chambers (the atria) contract first squeezing the blood out of the atria and into the main pumping chambers, the ventricles ...
EKG no audio
... rate 150 to 250 beats/min P wave present but may be hidden QRS is generally normal ventricular rate is regular RX: – usually none – prolonged episodes may require carotid sinus pressure, vagal stimulation, verapmil, digitalis, or beta blocks ...
... rate 150 to 250 beats/min P wave present but may be hidden QRS is generally normal ventricular rate is regular RX: – usually none – prolonged episodes may require carotid sinus pressure, vagal stimulation, verapmil, digitalis, or beta blocks ...
Restrictive Cardiomyopathy in Cats
... An electrocardiogram (often called an EKG or ECG) is used to identify and characterize arrhythmias (abnormalities in the electrical activity of the heart). The relative severity of an arrhythmia dictates whether or not it warrants specific therapy. Followup EKGs are instrumental in assessing progres ...
... An electrocardiogram (often called an EKG or ECG) is used to identify and characterize arrhythmias (abnormalities in the electrical activity of the heart). The relative severity of an arrhythmia dictates whether or not it warrants specific therapy. Followup EKGs are instrumental in assessing progres ...
Cardiovascular Dynamics Abbreviated File
... Extrinsic Control of Contractility • At any given EDV, contraction depends upon level of sympathoadrenal activity – NE & Epi produce an increase in HR & contraction (positive inotropic effect) • Due to increased Ca2+ in sarcomeres Fig 14.4 ...
... Extrinsic Control of Contractility • At any given EDV, contraction depends upon level of sympathoadrenal activity – NE & Epi produce an increase in HR & contraction (positive inotropic effect) • Due to increased Ca2+ in sarcomeres Fig 14.4 ...
58. Regulation of Cardiac Output
... ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ___________________________ ...
... ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ___________________________ ...
Cardiovascular System: Heart and Blood Vessels Physiology Study
... special. They can occur when blood flows more rapidly through the heart as occurs during physical activity, pregnancy, fever, hyperthyroidism, anemia, and aging. These murmurs are common in healthy children and can be simply due to the chest wall being relatively thin making it easier to hear the so ...
... special. They can occur when blood flows more rapidly through the heart as occurs during physical activity, pregnancy, fever, hyperthyroidism, anemia, and aging. These murmurs are common in healthy children and can be simply due to the chest wall being relatively thin making it easier to hear the so ...
Atrial fibrillation is a heart condition that causes an irregular and
... regular. You can measure your heart rate by feeling the pulse in your wrist or neck. In atrial fibrillation, the heart rate may be over 140 beats a minute, although it can be any speed. The main difference between a normal rhythm and atrial fibrillation is that you are unable to predict when the nex ...
... regular. You can measure your heart rate by feeling the pulse in your wrist or neck. In atrial fibrillation, the heart rate may be over 140 beats a minute, although it can be any speed. The main difference between a normal rhythm and atrial fibrillation is that you are unable to predict when the nex ...
Cardiac Defects: Hypoplastic Left Heart Syndrome
... What is the follow-up care for HLHS? Between the Norwood and Glenn Operations Though early outcomes for patients with single ventricle heart defects after staged reconstruction have improved dramatically, the period between the Norwood procedure and the Glenn operation remains a very vulnerable time ...
... What is the follow-up care for HLHS? Between the Norwood and Glenn Operations Though early outcomes for patients with single ventricle heart defects after staged reconstruction have improved dramatically, the period between the Norwood procedure and the Glenn operation remains a very vulnerable time ...
Section F: Cardiac Status
... presentations of unstable angina: 1) rest angina, 2) new -onset (less than 2 months) angina, and 3) increasing angina (in intensity, duration and/or frequency). 5. Non-ST Elevation MI (Non-STEMI) - The patient was hospitalized for a non-ST elevation myocardial infarction as documented in the medical ...
... presentations of unstable angina: 1) rest angina, 2) new -onset (less than 2 months) angina, and 3) increasing angina (in intensity, duration and/or frequency). 5. Non-ST Elevation MI (Non-STEMI) - The patient was hospitalized for a non-ST elevation myocardial infarction as documented in the medical ...
Heart rate
... • Ca+2 surge prolongs the depolarization phase and delays repolarization (excess + ions in cell) Repolarization: Ca+2 begin to close; K+ channels open and K+ leaves the cell. ...
... • Ca+2 surge prolongs the depolarization phase and delays repolarization (excess + ions in cell) Repolarization: Ca+2 begin to close; K+ channels open and K+ leaves the cell. ...
lhnsient Digitoxic Double Tachycardia
... several hours to control atrial fibrillation with rapid ventricular response in a patient who gave no history of being on digitalis is considered within therapeutic range. At that time the renal insufficiency secondary to marked dehydration was not appreciated. However, renal insufficiency does not ...
... several hours to control atrial fibrillation with rapid ventricular response in a patient who gave no history of being on digitalis is considered within therapeutic range. At that time the renal insufficiency secondary to marked dehydration was not appreciated. However, renal insufficiency does not ...
A1984SB92000001
... then already in existence, but most were handling blood outside the body. The intra-aortic balloon did not require an extracorporeal blood circuit. Instead of drawing the blood outside the body durins ventricular systole and pumping it back during diastole, as was done by Harken, we introduced a lon ...
... then already in existence, but most were handling blood outside the body. The intra-aortic balloon did not require an extracorporeal blood circuit. Instead of drawing the blood outside the body durins ventricular systole and pumping it back during diastole, as was done by Harken, we introduced a lon ...
Artificial Heart - Sponsors Choose
... and left atria contract at the same time, pumping blood to the right and left ventricles. • In the second stage, the ventricles contract together to propel blood out of the heart. • The heart muscle then relaxes before the next heartbeat. This allows blood to fill up the heart again. ...
... and left atria contract at the same time, pumping blood to the right and left ventricles. • In the second stage, the ventricles contract together to propel blood out of the heart. • The heart muscle then relaxes before the next heartbeat. This allows blood to fill up the heart again. ...
Minimum Question Cardiology and Angiology Year IV. 2016 1. The
... 57. A 29 year old female patient with a narrow QRS complex tachycardia at 180 beats/min arrives at the emergency room. Options for acute termination of the tachycardia include: a, Iv. adenosine (fast bolus) b, Iv. verapamil (slow bolus) c, Carotid sinus massage d, All of the above d 58. The most com ...
... 57. A 29 year old female patient with a narrow QRS complex tachycardia at 180 beats/min arrives at the emergency room. Options for acute termination of the tachycardia include: a, Iv. adenosine (fast bolus) b, Iv. verapamil (slow bolus) c, Carotid sinus massage d, All of the above d 58. The most com ...
Cardiovascular System - The Woodlands College Park High School
... Heart Sounds • Heart sounds (lub-dup) are associated with closing of heart valves – First sound occurs as AV valves close and signifies beginning of systole – Second sound occurs when SL valves close at the beginning of ventricular diastole ...
... Heart Sounds • Heart sounds (lub-dup) are associated with closing of heart valves – First sound occurs as AV valves close and signifies beginning of systole – Second sound occurs when SL valves close at the beginning of ventricular diastole ...
Defibrillation and Cardioversion
... Decompensated rapid AF with a rapid ventricular response - eg, a hypotensive patient, not responding to medical therapy [8] . VT with a pulse. Supraventricular tachycardias including AF without decompensation; not acutely urgent [9, 10] . In cardioversion the shock has to be properly timed, so that ...
... Decompensated rapid AF with a rapid ventricular response - eg, a hypotensive patient, not responding to medical therapy [8] . VT with a pulse. Supraventricular tachycardias including AF without decompensation; not acutely urgent [9, 10] . In cardioversion the shock has to be properly timed, so that ...