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ventricular fibrillation in acute myocardial infarction
ventricular fibrillation in acute myocardial infarction

... within the first hours of the acute myocardial infarction. A 60-year-old man was admitted to our Clinic from a local hospital due to acute onset of chest pain and ECG signs of anterior ST segment elevation myocardial infarction. He had severe rhythm disturbances, about 70 epizodes of ventricular fib ...
Dr.Yoused Aljeesh Dr. Motasem Salah The Heartbeat
Dr.Yoused Aljeesh Dr. Motasem Salah The Heartbeat

...  The heart sounds, lub-dup, are due to the closing of the atrioventricular valves, followed by the closing of the semilunar valves. Dr.Yoused Aljeesh ...
8311.Collapsing box
8311.Collapsing box

... sleep. However since dilated cardiomyopathy is not uncommon in Boxer’s and it often present initially with frequent arrhythmias and collapse, this is an important differential to screen for. Differential diagnosis : 1. Sinus arrest (possible vasovagal mechanism). Usually a very brief ‘faint’ lasting ...
DISORDER OF CARDIAC RHYTHM
DISORDER OF CARDIAC RHYTHM

... contraction begins. It is primarily the A-V node and its adjacent conductive fibers that delay this transmission of the cardiac impulse from the atria into the ventricles. After penetrating the fibrous tissue between the atrial and ventricular muscle, the distal portion of the A-V bundle passes down ...
Heart disease does not just affect those in the later years
Heart disease does not just affect those in the later years

... (also called myocardial infarction or coronary thrombosis) A heart attack occurs when blood flow to the heart muscle is blocked. To keep your heart healthy, the heart muscle needs to get a constant supply of oxygen-containing blood from the coronary arteries. If one of the coronary arteries becomes ...
The Heart - El Camino College
The Heart - El Camino College

... 1. Atrial ________ (atria contract) – blood flows into ventricles 2. Atrial _________ (atria relax) 3. Ventricular _________ (ventricles contract) – blood is pushed into the aorta and pulmonary artery; AV valves snap shut 4. Ventricular __________ (ventricles relax) – SL valves close ...
Cardiomyopathy – anaesthetic challenges MGMC
Cardiomyopathy – anaesthetic challenges MGMC

... months following delivery, where no other cause of heart failure is found. • The left ventricle may not be dilated but the ejection fraction is nearly always reduced below 45%. ...
WQRS-internist
WQRS-internist

... Some atrial tachycardias ...
Editorial Heart – the source and target of “hypothalamic
Editorial Heart – the source and target of “hypothalamic

... 1998) and restores sinus rhythm in patients with supraventricular cardiac arrhythmia (Ghirlanda et al. 1986; Webb et al. 1986). Treatment of acromegalic patients with a slow-release somatostatin analogue caused regression of their left ventricular hypertrophy (Hradec et al. 1999). It is clear that p ...
Pharmacological Therapy of Heart Failure: Case presentations
Pharmacological Therapy of Heart Failure: Case presentations

... AWMI c/o 10 lb weight gain over 72 ...
MEDICAL MANAGEMENT UPDATE Dental management of the
MEDICAL MANAGEMENT UPDATE Dental management of the

... Three events are involved in Wolff-Parkinson-White syndrome. First, an accessory AV pathway allows the normal conduction systems to be bypassed. Second, this accessory pathway allows rapid conduction and short refractoriness, with impulses being passed rapidly from atrium to ventricle. Third, the pa ...
IP Exercise Sheet - CHOW
IP Exercise Sheet - CHOW

... increases stroke volume by enhancing contractility. Increased Sympathetic Nervous System (SNS) - Increased sympathetic stimulation (due to fright, anger, etc.) increases the heart rate. It also increases stroke volume by increasing contractility, which results in more complete ejection of blood from ...
Isorhythmic Dissociation
Isorhythmic Dissociation

... with and without underlying heart disease may demonstrate this. Moderate drops in the arterial blood pressure can result from this intraoperative arrhythmia. The more serious causes of A-V dissociation include ischemic heart disease (e.g., acute inferior wall myocardial infarction), rheumatic fever, ...
ECG TUTORIAL: How to Analyze A Rhythm - sha
ECG TUTORIAL: How to Analyze A Rhythm - sha

... • P Waves: No true P waves; chaotic atrial activity • PR Interval: None • QRS: Normal (0.06–0.10 sec) ...
Congestive Heart Failure
Congestive Heart Failure

... Isovolumic relaxation(e) LV Filling: rapid phase (f) Slow LV Filling (g) Atrial systole( a) See Wiggers Diagram ...
How to tell heart rate from an ECG?
How to tell heart rate from an ECG?

... the relationship between the prevailing BP and HR over variable periods of time (from as short as 2 seconds to as long as a minute). ...
Cardiovascular Physiology Powerpoint
Cardiovascular Physiology Powerpoint

... SA node setting pace since is the fastest AV node fires at 40-50 times per minute If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Note: – caffeine & nicotine increase activity ...
the incredible cardiovascular system
the incredible cardiovascular system

... • Aka Cardiovascular Disease. ...
Sample
Sample

... 8. T or F. The normal pacemaker of the heart is the AV node. 9. T or F. The normal rate of the sinus node is 60–100 beats per minute. 10. T or F. The PR interval measures the time it takes for the impulse to travel from the atrium down to the ventricle. Fill-in-the-Blank Questions 1. Atrial depolari ...
heart failure
heart failure

... MBC: have been shown to reduce mortality. CCBs appear to have no role in the treatment of patients with HF. Their depressant effects on the heart may worsen HF. ...
Rhythms & Cardiac Emergencies
Rhythms & Cardiac Emergencies

... • Delay or interruption in impulse conduction in AV node, bundle of His, or His/Purkinje system • Classified according to degree of block and site of block – PR interval is key in determining type of AV block – Width of QRS determines site of block ...
Systole and Diastole (Cardiac Cycle) The ventricles drive the blood
Systole and Diastole (Cardiac Cycle) The ventricles drive the blood

... Two heart sounds, resulting from cardiac contraction, normally heard through a stethoscope placed on the chest wall. The first sound, a soft low-pitched lub, is associated with closure of the AV valves at the onset of systole; the second sound, a louder dup, is associated with closure of the pulmona ...
Medications - Barth Syndrome Foundation
Medications - Barth Syndrome Foundation

... the sinus node, the heartbeat could begin in another part of the heart. The heart muscle may develop abnormal beats for many reasons including heart muscle problems, other drugs or medications, problems with blood flow to the heart muscle arteries, etc. The symptoms of an abnormal heart rhythm may i ...
Aldosterone, ion channels, and sudden death: another - AJP
Aldosterone, ion channels, and sudden death: another - AJP

... slowing of cardiac conduction that leads to atrioventricular block, which defines progressive cardiac conduction defect (PCCD) or a subset of the autosomal dominantly inherited Brugada syndrome (BrS), for example, the molecular basis has been more difficult to understand. There are at least two puzz ...
Supraventricular Tachycardia in the Pediatric Trauma
Supraventricular Tachycardia in the Pediatric Trauma

... known as the d wave (Fig 3). This can be found with structurally normal hearts, as well as in hypertrophic cardiomyopathy or Ebstein anomaly. In patients with WPW, syncope is a potential warning sign of rapid ventricular conduction and atrial fibrillation. Atrioventricular node reentry tachycardia is ...
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Heart arrhythmia

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