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Transposition of the Great Arteries
Transposition of the Great Arteries

... B. Every 2-4 years: Cardiac magnetic resonance (CMR) imaging or radionuclide angiography (in patients with pacemakers) VII. Care during pregnancy (Refer to problem section on pregnancy in adults with CHD) (Canobbio, 2006; Warnes, 2006) A. Recommendations 1. Consultation with cardiologist with adult ...
Optimal ventricular rate slowing during atrial fibrillation - AJP
Optimal ventricular rate slowing during atrial fibrillation - AJP

... Received 17 August 2001; accepted in final form 19 November 2001 ...
The Heart - TeacherWeb
The Heart - TeacherWeb

... Aorta  systemic circulation Equal volumes of blood are pumped to the pulmonary and systemic circuits ...
Title Mechanisms of cardiac arrhythmias Author(s)
Title Mechanisms of cardiac arrhythmias Author(s)

... and NCX are responsible for the “voltage clock” of pacemaker activity. It is possible that dysfunctions of the proteins involved in the “calcium clock” mechanism, for example, ryanodine receptor and sarcoplasmic reticulum Ca2+-ATPase, may also contribute [18]. Enhanced automaticity can also occur in ...
atrioventricular nodal rhythms
atrioventricular nodal rhythms

BRS Physiology Cases and Problems 2nd Edition
BRS Physiology Cases and Problems 2nd Edition

... 1. When Joslin moved rapidly from a supine (lying) position to a standing position, there was a brief, initial decrease in arterial pressure that caused her light-headedness. Describe the sequence of events that produced this transient fall in arterial pressure. 2. Why did the decrease in arterial p ...
In validating rare diagnosis of SCAD, AHA heals
In validating rare diagnosis of SCAD, AHA heals

... February 2016 ...
Online Data Base Search for Authors and Keywords
Online Data Base Search for Authors and Keywords

... especially the Ca2+-channels that are essential for excitation in cells of the SA- and AV-node and for the regulation of contraction in the working myocardium. Sympathetic overactivity has been shown to decrease threshold of excitation and fibrillation, an observation which is extremely important fo ...
Document
Document

...  1: Pulmonary and Systemic Circulation (p. 358)  2: Anatomy of the Heart (p. 359)  3: Anatomy of the Heart; labeling (p. 360)  4: Blood Flow Through the Heart (p. 361)  5: Imaging Report (pp. 363–364) ...
Indezine Template
Indezine Template

... • Type 3- Unexpected cardiac death with electrocardiographic, echocardiographic, angiographic or autopsy findings indicative of myocardial ischaemia. • Type 4 a- PCI-related b- Stent thrombosis • Type 5 CABG related ...
Fundamentals II
Fundamentals II

... Process whereby CO2 and O2 are exchanged in the tissues.  Oxygenation of the body  CO2 is the stimulus for breathing  Inspiration - breathing in ...
Comparison of the rhythm control treatment strategy versus the rate
Comparison of the rhythm control treatment strategy versus the rate

... loading dose of amiodarone is up to 600mg daily for the first 4 weeks. Then, a maintenance dose of 200mg/daily is administered (a dose may be adjusted at discretion of treating physician). The loading dose may be modified or omitted, especially, if a patient had been given amiodarone before the enro ...
S1936879815016945_mmc1
S1936879815016945_mmc1

... This is a single-center, prospective, randomized, blinded two-arm phase IV clinical trial designed to compare the effectiveness of heart rate control with esmolol during the first 24 hours after acute STEMI. ...
A New Twist on Mitral Regurgitation
A New Twist on Mitral Regurgitation

... 60 (Figure 1F). Within the muscle bundles identified ...
paced - Weebly
paced - Weebly

... Intracardiac Cardioverter Defibrillators or ICD’s ...
Relationship between duration of illness and nervosa
Relationship between duration of illness and nervosa

... cardiac events. A wide range of autonomic nervous system disturbances may be mechanisms underlying the increased cardiovascular mortality and sudden death of patients with AN. Heart rate variability (HRV) has been proven to be a reliable noninvasive method for quantitative assessment of sympathetic ...
Title: Hypertension and Left Ventricular Hypertrophy (LVH) Author
Title: Hypertension and Left Ventricular Hypertrophy (LVH) Author

... symptoms
initially.

Symptoms
like
chest
pain,
dizziness,
 palpitations,
fatigue
and
shortness
of
breath
during
 exertion
or
while
sleeping
may
occur,
but
by
this
point
the
 disease
may
be
very
far
along.
These
are
already
symptoms
 of
heart
failure.
 ...
Reconsideration of EMI Phenomenon in Active Implantable Medical
Reconsideration of EMI Phenomenon in Active Implantable Medical

... Among the possible factors that adversary interact between a MRI scanner and an AMID, the physical force, acceleration and torque are seemed not to be safety risks in the modern pacemakers. Most of modern ICDs still pose problems, but a few device are almost same as pacemakers. This may be suggestin ...
Exercise Treadmill Testing
Exercise Treadmill Testing

... Results Reporting – Page 3 ...
Long-term remission of left posterior fascicular
Long-term remission of left posterior fascicular

... carneae, and small papillary muscles. The Purkinje networks in these small anatomic structures are important when considering the reentry circuit of LPFVT.1. Catheter ablation has been reported to have high success rates in terminating LPFVT. Radiofrequency ablation was applied during VT; terminatin ...
Atrial Fibrillation - St. Joseph`s Healthcare Hamilton
Atrial Fibrillation - St. Joseph`s Healthcare Hamilton

... Fluid collects in the lungs and causes trouble breathing, swelling, coughing and extreme tiredness. Atrial fibrillation often causes blood clots. This can be very harmful. A blood clot can block a blood vessel so blood cannot flow through the body. A clot can cause stabbing leg pain, trouble breathi ...
A Practical Approach to the Perioperative Management of Heart
A Practical Approach to the Perioperative Management of Heart

... year 2010 to 2030 the prevalence of all cardiovascular disease is projected to increase by 10%, but the prevalence of HF is projected to increase by 25%, such that 1 in 33 Americans will have heart failure [5]. In the same time frame, total costs for HF are estimated to increase from $31 billion to ...
A Practical Approach to the Perioperative Management of Heart
A Practical Approach to the Perioperative Management of Heart

... year 2010 to 2030 the prevalence of all cardiovascular disease is projected to increase by 10%, but the prevalence of HF is projected to increase by 25%, such that 1 in 33 Americans will have heart failure [5]. In the same time frame, total costs for HF are estimated to increase from $31 billion to ...
9/5 - Weebly
9/5 - Weebly

... -depolarization cannot get through septal wall of the heart -P wave: atrial depolarization – walls have depolarized -atrial depolarization travels toward lead II, therefore it is positive -P wave does not mean the SA node fired, but rather that the atrial walls have depolarized -Bachmann’s bundle ca ...
A Controlled Pilot Study of Stress Management Training of Elderly
A Controlled Pilot Study of Stress Management Training of Elderly

... were invited to participate by the nurse at a local cardiac rehabilitation facility. Nineteen participants were inner city, low socioeconomic status African American, Asian American, or Latino patients, and were invited to participate by their cardiologists. Subjects had been diagnosed as having NYH ...
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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.
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