Final Report - University of Pittsburgh
... Our main task in manipulating a basic ECG circuit (fig. 1) was to develop a filtering system that would allow us to bring positive, negative, and grounded electrodes of a three-lead ECG closer together without losing viable ECG recording(fig.2). Because the main constraints of our phase 1 study are ...
... Our main task in manipulating a basic ECG circuit (fig. 1) was to develop a filtering system that would allow us to bring positive, negative, and grounded electrodes of a three-lead ECG closer together without losing viable ECG recording(fig.2). Because the main constraints of our phase 1 study are ...
EKG Powerpoint
... • Occurs during the last part of ventricular systole • May be above or below the isoelectric line and is usually slightly rounded and slightly asymmetrical ...
... • Occurs during the last part of ventricular systole • May be above or below the isoelectric line and is usually slightly rounded and slightly asymmetrical ...
Cardiac output
... defined as the strength of contraction at any given EDV. It is measured by Ejection Fraction (EF%). Myocardial contractility affected by: The preload (i.e., EDV): Frank-Starling's law. Sympathetic nerve supply. The afterload (i.e., aortic impedance): An increase in the afterload reduces the cardiac ...
... defined as the strength of contraction at any given EDV. It is measured by Ejection Fraction (EF%). Myocardial contractility affected by: The preload (i.e., EDV): Frank-Starling's law. Sympathetic nerve supply. The afterload (i.e., aortic impedance): An increase in the afterload reduces the cardiac ...
blood flow - OCPS TeacherPress
... (2)(between atria) to 3. bundle of His (3)to 4. right and left bundle branches (interventricular septum towards apex) (4) to 5. Purkinje fibers (from apex upward) (5) ...
... (2)(between atria) to 3. bundle of His (3)to 4. right and left bundle branches (interventricular septum towards apex) (4) to 5. Purkinje fibers (from apex upward) (5) ...
Cardiac Mean Electrical Axis in Thoroughbreds—Standardization by
... The Thoroughbred racing horse is a widespread breed in racetracks around the world. Thoroughbreds’ physical constitution favors the achievement of a greater speed, and for this reason they take part in many other sports modalities, such as Polo, and are used in cross-breeding with equines as the Qua ...
... The Thoroughbred racing horse is a widespread breed in racetracks around the world. Thoroughbreds’ physical constitution favors the achievement of a greater speed, and for this reason they take part in many other sports modalities, such as Polo, and are used in cross-breeding with equines as the Qua ...
12 Lead EKG 101
... •It is better at measuring the PR-interval and the QRS width. •We express these intervals and durations in seconds ...
... •It is better at measuring the PR-interval and the QRS width. •We express these intervals and durations in seconds ...
Differential Diagnosis of Tall R Waves in Lead V1
... smoking history presents to the office for a routine physical exam. The patient denies any chest pain, but does admit to being chronically short of breath with exertion and has a chronic cough. Routine blood work, EKG, and chest xray are obtained on the patient. ...
... smoking history presents to the office for a routine physical exam. The patient denies any chest pain, but does admit to being chronically short of breath with exertion and has a chronic cough. Routine blood work, EKG, and chest xray are obtained on the patient. ...
Fibrillation and Defibrillator
... fig: Electrodes used in defibrillator (a) a spoon shaped internal electrode that is applied directly to the heart. (b) a paddle type electrode applied against the anterior chest wall. ...
... fig: Electrodes used in defibrillator (a) a spoon shaped internal electrode that is applied directly to the heart. (b) a paddle type electrode applied against the anterior chest wall. ...
Study endpoints assessment - JACC: Cardiovascular Interventions
... been described elsewhere (7). Moreover, baseline mean ST-segment elevation, residual mean STsegment elevation at 90 minutes after PCI, along with mean time between the last contrast injection and second ECG, were reported. Finally, STR analysis was performed by visual assessment. The core laboratory ...
... been described elsewhere (7). Moreover, baseline mean ST-segment elevation, residual mean STsegment elevation at 90 minutes after PCI, along with mean time between the last contrast injection and second ECG, were reported. Finally, STR analysis was performed by visual assessment. The core laboratory ...
10 .Congenitally corrected TGA- A case diagnosed incidentally
... per year [2]. The prognosis rests on clinical presentation, progression of disease, and the effect of systemic pressure on the functional SV .Patients undiagnosed until adulthood usually have no associated anomalies and present due to an abnormal chest radiograph or ECG. These patients are asymptoma ...
... per year [2]. The prognosis rests on clinical presentation, progression of disease, and the effect of systemic pressure on the functional SV .Patients undiagnosed until adulthood usually have no associated anomalies and present due to an abnormal chest radiograph or ECG. These patients are asymptoma ...
Investigations of Coronary Artery Disease Electrocardiogram
... Thallium is a radioactive substance. When injected into a vein, it will be taken up by heart muscle. When blood flow to the heart is reduced because of narrowed coronary arteries, less thallium will reach the heart muscle. ...
... Thallium is a radioactive substance. When injected into a vein, it will be taken up by heart muscle. When blood flow to the heart is reduced because of narrowed coronary arteries, less thallium will reach the heart muscle. ...
29 - LPS
... Is stimulated by nerves and is self-excitable (automaticity) Contracts as a unit Has a long (250 ms) absolute refractory period ...
... Is stimulated by nerves and is self-excitable (automaticity) Contracts as a unit Has a long (250 ms) absolute refractory period ...
Anatomy and Electrophysiology of the Heart Basic Anatomy of the
... • To determine ventricular and atrial rate. • Thirty large boxes represents 6 seconds. • Six second strips are also represented between two long lines on bottom of EKG paper. • May be used for regular/irregular rhythms • Simplest, quickest, and most commonly used. • To determine rate = count the num ...
... • To determine ventricular and atrial rate. • Thirty large boxes represents 6 seconds. • Six second strips are also represented between two long lines on bottom of EKG paper. • May be used for regular/irregular rhythms • Simplest, quickest, and most commonly used. • To determine rate = count the num ...
Slide ()
... angle θ is defined by orientation of lumen, as shown in (b″). ((a)–(a″)) Stage-10 heart with SPL intact. ((b)–(b″)) The heart with SPL removed after 3 h culture. ((c)–(c″)) The same heart after 6 h culture. Note that the bead cluster has not migrated rightward. ((d)–(d″)) The same heart after 12 h c ...
... angle θ is defined by orientation of lumen, as shown in (b″). ((a)–(a″)) Stage-10 heart with SPL intact. ((b)–(b″)) The heart with SPL removed after 3 h culture. ((c)–(c″)) The same heart after 6 h culture. Note that the bead cluster has not migrated rightward. ((d)–(d″)) The same heart after 12 h c ...
2008 Term 1 No 5
... Physics can save lives: a new type of defibrillation aims to reduce the voltage needed to shock out-of-control hearts back to a normal beating pattern. Ordinarily the beating heart is an orderly process (called systole) in which the heart muscle cells contract cooperatively to insure that blood is p ...
... Physics can save lives: a new type of defibrillation aims to reduce the voltage needed to shock out-of-control hearts back to a normal beating pattern. Ordinarily the beating heart is an orderly process (called systole) in which the heart muscle cells contract cooperatively to insure that blood is p ...
Where is most of the oxygen-depleted blood brought to in the heart
... base of heart apex of heart After completing this tutorial, you should be to label a diagram of the heart which shows the location of major heart chambers. NOW GO TO THE HEART VALVES TUTORIAL Be able to describe the location of the major heart valves: Right AV (tricuspid) Left AV (bicuspid) Pulmonar ...
... base of heart apex of heart After completing this tutorial, you should be to label a diagram of the heart which shows the location of major heart chambers. NOW GO TO THE HEART VALVES TUTORIAL Be able to describe the location of the major heart valves: Right AV (tricuspid) Left AV (bicuspid) Pulmonar ...
ECG Diagnosis Atrial fibrillation (AF)
... 62-year-old man with hypertension and diabetes mellitus is evaluated because of substernal chest pressure radiating to the neck for the past 35 minutes. A 12-lead electrocardiogram is obtained upon his arrival in the ...
... 62-year-old man with hypertension and diabetes mellitus is evaluated because of substernal chest pressure radiating to the neck for the past 35 minutes. A 12-lead electrocardiogram is obtained upon his arrival in the ...
wide qrs tachycardia
... Give 12 mg rapid IV bolus. May be repeated once. If unavailable , Verapamil 10 mg IV over 3 minutes, reduce to 5 mg if the patient is on beta blocker or hypotensive. If unsuccessful, Procainamide 10 mg/kg IV over 5 minutes. If unsuccessful, Cardiovert ...
... Give 12 mg rapid IV bolus. May be repeated once. If unavailable , Verapamil 10 mg IV over 3 minutes, reduce to 5 mg if the patient is on beta blocker or hypotensive. If unsuccessful, Procainamide 10 mg/kg IV over 5 minutes. If unsuccessful, Cardiovert ...
Chapter 12, Part 2 – The Heart The Heart is a Double Pump
... Pressure Differences and Heart Function! Pressure is the key to blood flow patterns and to the opening and closing of the valves.! • Blood moves from an area of higher pressure to an area of lower pressure.! • Valves open and close in response to pressure ...
... Pressure Differences and Heart Function! Pressure is the key to blood flow patterns and to the opening and closing of the valves.! • Blood moves from an area of higher pressure to an area of lower pressure.! • Valves open and close in response to pressure ...
Electrocardiographic Interpretation – Basic Rhythm Recognition
... These cells have property known as “Automaticity”— means they can spontaneously depolarize. Sinus Node Primary pacemaker Fires at a rate of 60-100 bpm ...
... These cells have property known as “Automaticity”— means they can spontaneously depolarize. Sinus Node Primary pacemaker Fires at a rate of 60-100 bpm ...
Defibrillator - galileo.harvard.edu
... • Some electrodes are provided with spring contacts. • Burns can be prevented ...
... • Some electrodes are provided with spring contacts. • Burns can be prevented ...
ECG Signal Analysis Using Wavelet Transforms
... Normally, the frequency range of an ECG signal is of 0.05–100 Hz and its dynamic range – of 1–10 mV. The ECG signal is characterized by five peaks and valleys labelled by the letters P, Q, R, S, T. In some cases we also use another peak called U. The performance of ECG analyzing system depends mainl ...
... Normally, the frequency range of an ECG signal is of 0.05–100 Hz and its dynamic range – of 1–10 mV. The ECG signal is characterized by five peaks and valleys labelled by the letters P, Q, R, S, T. In some cases we also use another peak called U. The performance of ECG analyzing system depends mainl ...
the abc`s of ekg intreptation
... is to count the # of small boxes between two R waves and divide that number into 1500. (60 seconds divided by 0.04 = 1500- that is why we use this #). Example: from one R to the next R there were 17 small boxes therefore that would be 1500 /17 = 88.23 or 88 beats/min. This is the most accurate way t ...
... is to count the # of small boxes between two R waves and divide that number into 1500. (60 seconds divided by 0.04 = 1500- that is why we use this #). Example: from one R to the next R there were 17 small boxes therefore that would be 1500 /17 = 88.23 or 88 beats/min. This is the most accurate way t ...
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.