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L6-Resources2OptionalslidesetECGrhythm
L6-Resources2OptionalslidesetECGrhythm

... -Constant PR interval…then dropped beat -Block always BELOW AV node (more serious) -Never normal -Likely needs a pacemaker ...
Works like you work.
Works like you work.

... Building on the design of its predecessor, the LIFEPAK 20e defibrillator/ monitor is compact, lightweight and easy to rush to the scene or use during transport. The 20e is highly intuitive to use, putting early, effective defibrillation into the hands of first responders. The 20e skillfully combines ...
American HEART Month February is How Common is Sudden
American HEART Month February is How Common is Sudden

... • Other causes of SCA among people who do not have heart disease include recreational drug use, electrocution, and commotio cordis, a disruption in the heart rhythm due to a sudden blow to the chest. • When SCA occurs, the heart stops beating in an effective, organized manner. As a result, blood i ...
PocketECG: A new continuous and real
PocketECG: A new continuous and real

... The next step in the evolution of the intermittent monitoring systems is represented by AFMs. This type of device is used for real-time monitoring over an extended period in order to detect infrequent arrhythmias. The devices allow for storage and transmission of symptomatic and limited types of asy ...
A realistic coupled nonlinear artificial ECG, BP and respiratory
A realistic coupled nonlinear artificial ECG, BP and respiratory

... to age), BP and HR.13, 14 The model does not consider the effect of arterial compliance since the intention is not to model the interaction of the electrophysiology and hemodynamics of the cardiovascular system, but rather to provide a realistic waveform generator to assess signal processing techniqu ...
Prognostic value of atrial fibrillation in heart failure with preserved
Prognostic value of atrial fibrillation in heart failure with preserved

... Aim: To assess the influence of atrial fibrillation on mortality in heart failure with preserved ejection fraction (HFPEF) in a prospective study compared to heart failure with reduced ejection fraction (HFREF). We have hypothesized that atrial fibrillation decreases survival in HFPEF. Patients and ...
3_Cardiac_Cycle
3_Cardiac_Cycle

... by the heart in one cardiac cycle. • Typically about 80cm3. • Stroke volume increases during exercise. • Cardiac Output (CO) is the volume of blood pumped in one minute. CO = stroke volume x heart rate. • expressed in litres of blood per minute. ...
Critical Care in the Cardiac Patient
Critical Care in the Cardiac Patient

... less reliably. To make matter worse, dynamic assessment of fluid responsiveness (pulse pressure variation, stroke volume variation and leg raising) made a mockery of his ‘wedge’ pressure. While a handful of die-hard followers continued to promote his mission, the last few years of his existence were ...
HBHeartPhys
HBHeartPhys

... Internal Conduction (Stimulation) System of the Heart 1. heart can beat rhythmically without nervous input. Automicity (Autorhythmicity) - some cardiac muscle cells are "self-excitable" allowing for rhythmic waves of contraction to adjacent cells throughout the heart. Skeletal muscle cells must be s ...
(AV) Block
(AV) Block

... should be considered when initiating the pulseless arrest algorithm: • High-quality CPR should be performed until the defibrillator is attached the patient. • Interruptions in chest compressions should be kept to a minimum. • Rapid use of the defibrillator should be emphasized. • If possible, use a ...
Bio211 Lecture 1
Bio211 Lecture 1

... Escape rhythm – rhythms not initiated by the SA node Ectopic beat – Originating at a site other than the SA node Cardiac arrest – Sudden cardiovascular collapse and unconsciousness Electroconversion – defibrillation Sinus arrest – lack of any electrical discharge from the SA node Premature atrial co ...
is minimally invasive left ventricular epicardial lead implantation the
is minimally invasive left ventricular epicardial lead implantation the

... Introduction: Biventricular pacing is an adjuvant treatment for patients with heart failure and intraventricular conduction delay. Early and late failure rates to place adequately are approximately 12% and 15%, respectively. Epicardial lead placement is often a rescue procedure in those patients, we ...
CV-2-2014
CV-2-2014

... • release more sympathetic neurotransmitter (norepinephrine), and/or • reduce release of parasympathetic neurotransmitter (acetylcholine). ...
English
English

... slow their heart rate may find that their heart rate does not increase as much as they expect with exercise. This observation usually indicates that the medications are doing a good job of controlling the heart rate and the beneficial effects of exercise will still ...
Cardiology Update 2016
Cardiology Update 2016

... myocardial ischemia prior to revascularization in patients presenting with chest pain. • Define the definition of diastolic heart failure (HFpEF). • Provide diagnostic tools and treatment options for diastolic heart failure (HFpEF). • Discuss the clinical implications of the recently published ...
Potential of Telemedicine Feb 2010f
Potential of Telemedicine Feb 2010f

... The basic features of the RV pressure waveform and the identification of these feature points using the first derivative of the RV pressure waveform. Three of these points identify the turning points of the PA flow waveform (in mmHg), PEI, T1st and STI, where PEI = time of dP/dtmax, T1st = time of t ...
Biochemical markers
Biochemical markers

... 1000 low-risk patients with no evidence of hemodynamic instability, arrhythmias, or ECG signs of ischemia They found that immediate exercise testing are safe and accurate ...
Dunwoody AED
Dunwoody AED

... the U.S. alone. That means that more people die each year from SCA than from house fires, AIDS, handguns, prostate cancer, breast cancer and traffic accidents.. COMBINED ! ...
Powerpoint 19 Heart - People Server at UNCW
Powerpoint 19 Heart - People Server at UNCW

... 1. heart stimulates itself with autorhythmic cells 2. ANS and hormones can only modify, not establish, the fundamental rhythm 3. 1% of cardiac muscle cells lose the ability to contract during early development (specialized autorhythmic cells) ...
12 Lead ECGs: Ischemia, Injury, Infarction
12 Lead ECGs: Ischemia, Injury, Infarction

... Abnormal Qs are wider and deeper than the normal “petite” Q wave. Abnormal Q waves tell the story that at some time in the past, this person has experienced heart damage and as a result, there is a loss of electrical conduction (due to old tissue damage). These Q waves are permanent and typically do ...
Digitalis Glycosides
Digitalis Glycosides

... • Triggers Ca release from SR and intracellular Ca • Combines with Troponin C‐Xlinking of Ac‐Myosin • Na extrusion by Na‐K ATPase; Ca pushed into SR,   bound to Calsequestran OR extruded by Na Ca bound to Calsequestran OR extruded by Na‐Ca  exchanger • Β agonists and PDE inhibitors- cAMP –PKAopen L ...
Lecture: Heart Physiology
Lecture: Heart Physiology

... initial SA node excitation causes contraction of both the R and L atria contraction of R and L ventricles begins at APEX of heart (inferior point), ejecting blood superiorly to aorta and pulmonary artery the bundle of His is the ONLY link between atrial contraction and ventricular contraction; AV no ...
What are the symptoms/warning signs of Sudden Cardiac Arrest
What are the symptoms/warning signs of Sudden Cardiac Arrest

... common cause of sudden cardiac arrest in athletes in the U.S. ○ Arrhythmogenic Right Ventricular Cardiomyopathy – replacement of part of the right ventricle by fat and scar; the most common cause of sudden cardiac arrest in Italy. ○ Marfan Syndrome – a disorder of the structure of blood vessels that ...
arrhythmias in adult congenital heart disease
arrhythmias in adult congenital heart disease

... There are now more adults living with congenital heart disease (CHD) than children with CHD, due to the remarkable improvements in medical, interventional, and surgical care of these complex patients. However, despite increased survival and longevity, the longterm hemodynamic abnormalities and sutur ...
Accelerated idioventricular rhythm observed under total intravenous
Accelerated idioventricular rhythm observed under total intravenous

... severe when their doses were decreased (+1), because the surgery 1 year prior had no episode of an AIVR with balanced anesthesia using sevoflurane, remifentanil, and propofol, the doses of which were lower than those at this time. The arrhythmias were objectively recorded on an ECG trace (+1). Most ...
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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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