Heart Failure: Knowledge for Effective Self-Care
... fractions less than 35% are at risk for lethal arrhythmias or abnormal heart rhythms. Because of this, your health care provider could recommend an internal cardiac defibrillator (ICD), which is inserted through a small incision in your upper chest. Similar to a pacemaker, the ICD protects you by pa ...
... fractions less than 35% are at risk for lethal arrhythmias or abnormal heart rhythms. Because of this, your health care provider could recommend an internal cardiac defibrillator (ICD), which is inserted through a small incision in your upper chest. Similar to a pacemaker, the ICD protects you by pa ...
Cardiovascular Physiology
... • Sets the pace of the heartbeat at 70 bpm • AV node (50 bpm) and Purkinje fibers (25-40 bpm) can act as pacemakers under some conditions ...
... • Sets the pace of the heartbeat at 70 bpm • AV node (50 bpm) and Purkinje fibers (25-40 bpm) can act as pacemakers under some conditions ...
Valvular Disease and Endocarditis - Ipswich-Year2-Med
... Micro: sub-acute granulation tissue base. Eventually fibrosis, calcification and chronic inflammatory infiltrates. (b) Thrombotic Vegetation (Nonbacterial Thrombotic EndocarditisNBTE):these vegetations are STERILE! and small (1-5mm) ...
... Micro: sub-acute granulation tissue base. Eventually fibrosis, calcification and chronic inflammatory infiltrates. (b) Thrombotic Vegetation (Nonbacterial Thrombotic EndocarditisNBTE):these vegetations are STERILE! and small (1-5mm) ...
Approach to syncope
... Life threatening conditions of syncope: Certain cardiac conditions may present with syncope and can be serious and even life threatening. As a result of either an arrhythmia or structural heart condition, cardiac output may abruptly decrease leading to syncope. - Primary Electrical Disturbances: In ...
... Life threatening conditions of syncope: Certain cardiac conditions may present with syncope and can be serious and even life threatening. As a result of either an arrhythmia or structural heart condition, cardiac output may abruptly decrease leading to syncope. - Primary Electrical Disturbances: In ...
Prevention of Atrial Fibrillation by Renin
... In a subanalysis, we excluded those trials in which AF had not been a pre-specified end point (i.e., in which AF was analyzed post-hoc, which was the case in some of the primary prevention studies). For final sensitivity analysis of all data, the main analysis was repeated after the additional inclu ...
... In a subanalysis, we excluded those trials in which AF had not been a pre-specified end point (i.e., in which AF was analyzed post-hoc, which was the case in some of the primary prevention studies). For final sensitivity analysis of all data, the main analysis was repeated after the additional inclu ...
Applied physiology: Understanding shock
... Venous peripheral circulation Seventy-five percent of the total blood volume is contained within the venous system. Despite this large volume of blood, the intravascular pressure is low as a result of the high vascular capacitance. Venous blood flow to the heart is dependent upon a pressure gradient ...
... Venous peripheral circulation Seventy-five percent of the total blood volume is contained within the venous system. Despite this large volume of blood, the intravascular pressure is low as a result of the high vascular capacitance. Venous blood flow to the heart is dependent upon a pressure gradient ...
For Personal Use. Copyright HMP 2014
... Terminology and coronary venous anatomy. We used the same terminology as used in previous studies to identify the coronary veins.11-13 The myocardium drains mainly by two groups of veins: the tributaries of the greater and smaller cardiac veins, or the Thebesian veins. The main vein of the greater v ...
... Terminology and coronary venous anatomy. We used the same terminology as used in previous studies to identify the coronary veins.11-13 The myocardium drains mainly by two groups of veins: the tributaries of the greater and smaller cardiac veins, or the Thebesian veins. The main vein of the greater v ...
Beta-Blockers in Congestive Heart Failure: the Evolution of a New
... In the first series of 7 patients we found a uniform response. Before there were obvious signs of increase in ejection fraction there was symptomatic improvement predominantly relief of resting and exertional dyspnoea. An early bedside finding was disappearance of third heart sound and normalisation ...
... In the first series of 7 patients we found a uniform response. Before there were obvious signs of increase in ejection fraction there was symptomatic improvement predominantly relief of resting and exertional dyspnoea. An early bedside finding was disappearance of third heart sound and normalisation ...
What`s Inside Heart? - Firefighter Cancer Support Network
... Will I be exposed to radiation? Because EBT captures images so rapidly, it offers very little radiation exposure – about as much as you’d experience on a cross-country commercial flight. That makes EBT extremely safe. Other types of “heart scans” expose you to up to ten times as much. Isn’t it enoug ...
... Will I be exposed to radiation? Because EBT captures images so rapidly, it offers very little radiation exposure – about as much as you’d experience on a cross-country commercial flight. That makes EBT extremely safe. Other types of “heart scans” expose you to up to ten times as much. Isn’t it enoug ...
HEART SAVER SCHOOL PROGRAM
... recognized the value of fire-based emergency medical services and has provided paramedic-level care since 1982. With a tiered response and response times averaging less than four (4) minutes for first arriving basic life support and six (6) minutes for advanced life support, an out-of-hospital cardi ...
... recognized the value of fire-based emergency medical services and has provided paramedic-level care since 1982. With a tiered response and response times averaging less than four (4) minutes for first arriving basic life support and six (6) minutes for advanced life support, an out-of-hospital cardi ...
Ch_21_lecture_presentation
... • The Right Ventricle • The right AV valve is connected to papillary muscles via chordae tendineae • Since there are three cusps to the valve, the chordae tendineae are connected to three papillary muscles • Papillary muscles and chordae tendineae prevent valve inversion when the ventricles contract ...
... • The Right Ventricle • The right AV valve is connected to papillary muscles via chordae tendineae • Since there are three cusps to the valve, the chordae tendineae are connected to three papillary muscles • Papillary muscles and chordae tendineae prevent valve inversion when the ventricles contract ...
Year In Review: 2008/2009 - 2009/2010 WRHA Cardiac Sciences Program
... cardiac imaging, heart catheterization, pacemakers, defibrillators, and ventricular assist devices. In electrophysiology, a new mapping system was introduced which delivers the full complement of diagnostic and therapeutic procedures, including atrial fibrillation. Each year, 1,500 individuals are t ...
... cardiac imaging, heart catheterization, pacemakers, defibrillators, and ventricular assist devices. In electrophysiology, a new mapping system was introduced which delivers the full complement of diagnostic and therapeutic procedures, including atrial fibrillation. Each year, 1,500 individuals are t ...
Class 24 heart
... The cardiac cycle. ZOOMING IN • When the ventricles contract, what valves close? What valves open? Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins ...
... The cardiac cycle. ZOOMING IN • When the ventricles contract, what valves close? What valves open? Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins ...
Sample pages 2 PDF
... Fallot is brought to the emergency department and subsequently to the PICU for progressively turning blue soon after waking when his mother began to feed him. He became fussy, began to cry, and since then, has been getting progressively more cyanotic and limp. All of the following are true statement ...
... Fallot is brought to the emergency department and subsequently to the PICU for progressively turning blue soon after waking when his mother began to feed him. He became fussy, began to cry, and since then, has been getting progressively more cyanotic and limp. All of the following are true statement ...
A Complication following the Transcatheter Closure of a Muscular
... Today, congenital heart diseases may be treated without surgery through advances in interventional cardiology. However, complications such as infection and thrombus formation may develop due to foreign materials used during these procedures. Surgical intervention may be required for the removal of t ...
... Today, congenital heart diseases may be treated without surgery through advances in interventional cardiology. However, complications such as infection and thrombus formation may develop due to foreign materials used during these procedures. Surgical intervention may be required for the removal of t ...
Gene Electro Transfer of Plasmid Encoding Vascular Endothelial
... demonstrated that electro transfer could be used effectively to deliver plasmid DNA directly to cardiac tissue in vivo [7–10]. We have further confirmed that electro transfer is a viable approach for delivering plasmid DNA into cells of the porcine heart in vivo. The GET parameters were selected bas ...
... demonstrated that electro transfer could be used effectively to deliver plasmid DNA directly to cardiac tissue in vivo [7–10]. We have further confirmed that electro transfer is a viable approach for delivering plasmid DNA into cells of the porcine heart in vivo. The GET parameters were selected bas ...
Cardiac Iodine-123 Metaiodobenzylguanidine Imaging
... 0.05. Patients with sinus rhythm and total study patients were analyzed in separate models, and the results of HRV and QT dispersion, which cannot be measured in the presence of atrial fibrillation, were excluded from the variables assessed in the analysis in total study patients. The Kaplan-Meier m ...
... 0.05. Patients with sinus rhythm and total study patients were analyzed in separate models, and the results of HRV and QT dispersion, which cannot be measured in the presence of atrial fibrillation, were excluded from the variables assessed in the analysis in total study patients. The Kaplan-Meier m ...
Communication between coronary sinus and left atrium
... developing heart. In our cases a coronary sinus was present but communicated with the left atrium. It is possible that this represents aformefruste of the condition described by Raghib et al. The four cases described serve to identify the condition of communication of the left atrium with the corona ...
... developing heart. In our cases a coronary sinus was present but communicated with the left atrium. It is possible that this represents aformefruste of the condition described by Raghib et al. The four cases described serve to identify the condition of communication of the left atrium with the corona ...
Atrioventricular Conduction in Atrial Fibrillation: Pathophysiology
... ventricular rate may occasionally be observed due to vagolytic effects (quinidine, disopyramide) or regularization of atrial activity (such as atrial flutter), which in turn decreases the filtering effect of concealed conduction. Adenosine binds to A1 receptors and activates IK/Ado, a subtype of Ik ...
... ventricular rate may occasionally be observed due to vagolytic effects (quinidine, disopyramide) or regularization of atrial activity (such as atrial flutter), which in turn decreases the filtering effect of concealed conduction. Adenosine binds to A1 receptors and activates IK/Ado, a subtype of Ik ...
Document
... incorporated into right atrium, and these fast-rate depolarizing cardiac myocytes become sinoatrial (SA) node and atrioventricular (AV) node. • C. In the adult, the cardiac myocytes of the SA and AV nodes remain committed to a fast rate of electrical depolarizations instead of developing contractile ...
... incorporated into right atrium, and these fast-rate depolarizing cardiac myocytes become sinoatrial (SA) node and atrioventricular (AV) node. • C. In the adult, the cardiac myocytes of the SA and AV nodes remain committed to a fast rate of electrical depolarizations instead of developing contractile ...
Adrenomedullin-epinephrine cotreatment enhances cardiac output and left
... pressure (dP/dtmax and dP/dtmin, respectively), and isovolumic time constant ()] were assessed using the initial steady-state recording at each measurement set. PRSW, which incorporates both systolic and diastolic properties, is a relatively load-insensitive index of global LV function (9). The ESP ...
... pressure (dP/dtmax and dP/dtmin, respectively), and isovolumic time constant ()] were assessed using the initial steady-state recording at each measurement set. PRSW, which incorporates both systolic and diastolic properties, is a relatively load-insensitive index of global LV function (9). The ESP ...
Sudden cardiac arrest in children and young athletes: the
... sports pre-participation evaluation (PPE), some studies have disparaged the effectiveness of such a PPE process. A 1996 study reviewed the 1985–95 sudden deaths in 158 US trained athletes,21 134 of whom were felt to have suffered SCA due to a cardiovascular cause. Median age was 17 years (range 12 t ...
... sports pre-participation evaluation (PPE), some studies have disparaged the effectiveness of such a PPE process. A 1996 study reviewed the 1985–95 sudden deaths in 158 US trained athletes,21 134 of whom were felt to have suffered SCA due to a cardiovascular cause. Median age was 17 years (range 12 t ...
- WordPress.com
... used and will create a visual image of the sound waves from the baby’s heart. The doctor can then determine if there is a congenital heart defect or disease and then begin to plan accordingly with the parents. Echocardiogram – this test is done after the child is born. The doctor will use an ultraso ...
... used and will create a visual image of the sound waves from the baby’s heart. The doctor can then determine if there is a congenital heart defect or disease and then begin to plan accordingly with the parents. Echocardiogram – this test is done after the child is born. The doctor will use an ultraso ...
Acute oral Administration of Khat (Catha edulis) aqueous extract
... minutes were insignificantly different to each other but were significantly different when compared to control group. A prolonged QT interval has been associated with cardiac arrhythmia and sudden death in humans.2 At the cellular level, ventricular repolarization is prolonged in a number of cardiac ...
... minutes were insignificantly different to each other but were significantly different when compared to control group. A prolonged QT interval has been associated with cardiac arrhythmia and sudden death in humans.2 At the cellular level, ventricular repolarization is prolonged in a number of cardiac ...
nnp 2 2010:Neurologia 1-2006.qxd.qxd
... and CD31. Histopathological workup of brain metastasis material revealed a highly cellular and vascularized tumour with about 5% to 10% mitoses per high power field (Fig. 3, parts A-D). Tumour cell invasion into the surrounding brain parenchyma was visible in some areas (Fig. 3, part A) in contrast ...
... and CD31. Histopathological workup of brain metastasis material revealed a highly cellular and vascularized tumour with about 5% to 10% mitoses per high power field (Fig. 3, parts A-D). Tumour cell invasion into the surrounding brain parenchyma was visible in some areas (Fig. 3, part A) in contrast ...
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.