PowerPoint プレゼンテーション
... versus sham/MerCreMer (－)/tamoxifen (＋); dagger, P<0.005 versus sham/MerCreMer (＋)/tamoxifen (－); hash sign, P,0.05 versus sham/MerCreMer (＋)/tamoxifen (＋); section sign, P,0.05 versus TAC/MerCreMer (－)/tamoxifen (＋); paragraph sign, P<0.05 versus TAC/MerCreMer (＋)/tamoxifen (－). Error bars indicate ...
... versus sham/MerCreMer (－)/tamoxifen (＋); dagger, P<0.005 versus sham/MerCreMer (＋)/tamoxifen (－); hash sign, P,0.05 versus sham/MerCreMer (＋)/tamoxifen (＋); section sign, P,0.05 versus TAC/MerCreMer (－)/tamoxifen (＋); paragraph sign, P<0.05 versus TAC/MerCreMer (＋)/tamoxifen (－). Error bars indicate ...
experiments on the origin of auricular flutter and fibrillation
... auricular flutter. 10,15 It has not been described up to the present in paroxysmal tachycardia, but heretofore it has never been possible to study the effect of vagal stimulation in auricular flutter was used by Lewis as a important fact to support the circus movement theory. The refractor phase of ...
... auricular flutter. 10,15 It has not been described up to the present in paroxysmal tachycardia, but heretofore it has never been possible to study the effect of vagal stimulation in auricular flutter was used by Lewis as a important fact to support the circus movement theory. The refractor phase of ...
Consequences of Arterial Switch Operation in Children
... Background: The introduction of the arterial switch operation (ASO) made it the procedure of choice for surgical correction of transposition of the great arteries. A majority of the sympathetic nerves innervate the heart alongside the great vessels; these are therefore likely to be damaged during th ...
... Background: The introduction of the arterial switch operation (ASO) made it the procedure of choice for surgical correction of transposition of the great arteries. A majority of the sympathetic nerves innervate the heart alongside the great vessels; these are therefore likely to be damaged during th ...
Heart Center 2011 Annual report covers
... of performing hundreds of thousands of diagnostic studies and thousands of interventional procedures, into one of the top programs in our state and region. Having performed our first heart catheterization in St. Cloud in 1983 and our first open heart surgery in 1988, that distant memory is the spark ...
... of performing hundreds of thousands of diagnostic studies and thousands of interventional procedures, into one of the top programs in our state and region. Having performed our first heart catheterization in St. Cloud in 1983 and our first open heart surgery in 1988, that distant memory is the spark ...
VALVULAR HEART DISEASE What are heart valves? The heart has
... Mitral regurgitation or leaking of the mitral valve results in a excess volume overload of the left ventricle and left atrium. Both chambers enlarge. The heart can cope for many years with a leaky mitral valve but may eventually wear out. It is necessary to follow the patients with significant mitra ...
... Mitral regurgitation or leaking of the mitral valve results in a excess volume overload of the left ventricle and left atrium. Both chambers enlarge. The heart can cope for many years with a leaky mitral valve but may eventually wear out. It is necessary to follow the patients with significant mitra ...
Electroanatomic Mapping System - European Journal of Medical
... and voltage maps [3-5], 3D display of the anatomy from serially generated catheter localization information [6]. These systems are used during cardiac ablations, aimed at destroying heart tissues responsible for the arrhythmia using flexible catheter [7]. The systems are based on non-fluoroscopic vi ...
... and voltage maps [3-5], 3D display of the anatomy from serially generated catheter localization information [6]. These systems are used during cardiac ablations, aimed at destroying heart tissues responsible for the arrhythmia using flexible catheter [7]. The systems are based on non-fluoroscopic vi ...
Left ventricular assist devices in the treatment of end
... symptoms of heart failure are e.g. a dry cough, tightness of the chest, cold hands and feet and poor sleep. Usually several symptoms appear at the same time, but their intensity can differ greatly; some patients can still carry out their daily activities very well, while others experience serious pr ...
... symptoms of heart failure are e.g. a dry cough, tightness of the chest, cold hands and feet and poor sleep. Usually several symptoms appear at the same time, but their intensity can differ greatly; some patients can still carry out their daily activities very well, while others experience serious pr ...
Course Book Cardiovascular Disease 2013-2014
... heart, several sets of cells spontaneously depolarize (automaticity), initiating their own action potential, which may then be propagated through the heart. Spontaneous depolarization is also called pacemaker function. In the normal situation, the sino-atrial node (SA node or sinus node), has the mo ...
... heart, several sets of cells spontaneously depolarize (automaticity), initiating their own action potential, which may then be propagated through the heart. Spontaneous depolarization is also called pacemaker function. In the normal situation, the sino-atrial node (SA node or sinus node), has the mo ...
KS4_The_Heart_and_Circulatory_System
... The blood system is often known as the “double circulation” system. Why is this? A The blood carries two vital materials. B There are actually two parts to the heart. C The system is divided into two separate circuits. D The blood flows in two directions. ...
... The blood system is often known as the “double circulation” system. Why is this? A The blood carries two vital materials. B There are actually two parts to the heart. C The system is divided into two separate circuits. D The blood flows in two directions. ...
The Canadian Syncope Risk Score to Identify Patients at Risk for
... 11 ED vitals: 6 BPs, 3 pulse rates, triage respiratory rate and O2 saturation 4 Lab tests: Hemoglobin, hematocrit, BUN, and creatinine 3 ECG: QRS axis, QRS duration and cQT interval ...
... 11 ED vitals: 6 BPs, 3 pulse rates, triage respiratory rate and O2 saturation 4 Lab tests: Hemoglobin, hematocrit, BUN, and creatinine 3 ECG: QRS axis, QRS duration and cQT interval ...
File
... • A quick glance at a strip will often lead to an incorrect interpretation • Ask and answer each question in the five-step approach in the order that is presented here… this is important for consistency • Master the accepted parameters for each dysrhythmia and apply them to each of the five steps wh ...
... • A quick glance at a strip will often lead to an incorrect interpretation • Ask and answer each question in the five-step approach in the order that is presented here… this is important for consistency • Master the accepted parameters for each dysrhythmia and apply them to each of the five steps wh ...
Right Heart Evaluation Right Heart Evaluation
... RA pressure: Misreporting • Although a distended IVC usually denotes elevated RA pressures, in patients with otherwise normal exam results, reassessing the IVC size and collapsibility in the left lateral position may be useful to avoid the potentially erroneous inference of increased RA filling pre ...
... RA pressure: Misreporting • Although a distended IVC usually denotes elevated RA pressures, in patients with otherwise normal exam results, reassessing the IVC size and collapsibility in the left lateral position may be useful to avoid the potentially erroneous inference of increased RA filling pre ...
PDF Article
... functional capacity and a decreased need for hospital admission for worsening heart failure (l-4). The clinical benefits observed with digoxin in patients with heart failure have traditionally been attributed to the bemodynamic improvements produced by this agent: that is, iniL..+:-creasesin cardiac ...
... functional capacity and a decreased need for hospital admission for worsening heart failure (l-4). The clinical benefits observed with digoxin in patients with heart failure have traditionally been attributed to the bemodynamic improvements produced by this agent: that is, iniL..+:-creasesin cardiac ...
The role of right-sided heart failure in patients with Cardio
... and disease traditionally has been lagging behind that of the left ventricle51. Even though, right-sided (or right ventricular) heart failure (RSHF) usually occurs as a result of left-sided failure, RV function may be impaired in pulmonary hypertension (PH), chronic obstructive pulmonary disease (CO ...
... and disease traditionally has been lagging behind that of the left ventricle51. Even though, right-sided (or right ventricular) heart failure (RSHF) usually occurs as a result of left-sided failure, RV function may be impaired in pulmonary hypertension (PH), chronic obstructive pulmonary disease (CO ...
Conduction system of the heart
... – Nerve impulse travels from AV node to AV bundle (L&R branches) to purkinge fibers ventricles contract – Result: 1 complete cardiac cycle (pumping cycle), Assoc. with 1 heartbeat – Process repeats • Interatrial bundle of conducting fibers facilitates rapid conduction to left atrium • As signal en ...
... – Nerve impulse travels from AV node to AV bundle (L&R branches) to purkinge fibers ventricles contract – Result: 1 complete cardiac cycle (pumping cycle), Assoc. with 1 heartbeat – Process repeats • Interatrial bundle of conducting fibers facilitates rapid conduction to left atrium • As signal en ...
Pacemaker Development in Embryonic Rat Heart Cultured
... transplants (see Fig. 4). Action potentials recorded from cells surrounding this region differed mainly in upstroke velocity (>20 v/s, p < 0.05) and the absence of phase 4 depolarization. Figure 5 and Table 1 compare action potential characteristics of in oculo and adult rat heart cells. In oculo an ...
... transplants (see Fig. 4). Action potentials recorded from cells surrounding this region differed mainly in upstroke velocity (>20 v/s, p < 0.05) and the absence of phase 4 depolarization. Figure 5 and Table 1 compare action potential characteristics of in oculo and adult rat heart cells. In oculo an ...
Abnormal Myocardial Enhancement
... lateral free wall most often involved.1-3 Enhancement becomes more diffuse and faint over time, with or without associated wall motion abnormalities. As expected, there is often associated T2 hyperintense signal from inflammation. Pericardial effusions can occur but are often small. In the chronic s ...
... lateral free wall most often involved.1-3 Enhancement becomes more diffuse and faint over time, with or without associated wall motion abnormalities. As expected, there is often associated T2 hyperintense signal from inflammation. Pericardial effusions can occur but are often small. In the chronic s ...
The formation and function of the cardiac conduction system
... of its formation, the heart itself generates and propagates the electrical impulse that is required to initiate coordinated contractions to efficiently pump blood throughout the body. In the developed heart, these functions are performed by the cardiac conduction system (CCS), which is made up of va ...
... of its formation, the heart itself generates and propagates the electrical impulse that is required to initiate coordinated contractions to efficiently pump blood throughout the body. In the developed heart, these functions are performed by the cardiac conduction system (CCS), which is made up of va ...
WSIAT Decision
... delivery to the heart muscle). With the onset of myocardial ischemia, cell death is not immediate, but takes a finite period to develop : as little as 20 minutes. Complete death of all myocardial cells at risk requires at least 2-4 hours or longer. Finally, CAD and its sequelae account for 80% of su ...
... delivery to the heart muscle). With the onset of myocardial ischemia, cell death is not immediate, but takes a finite period to develop : as little as 20 minutes. Complete death of all myocardial cells at risk requires at least 2-4 hours or longer. Finally, CAD and its sequelae account for 80% of su ...
Prolonged P wave dispersion in pre−diabetic patients
... Background: It is known that overt diabetes as well as chronic hyperglycaemia can lead to atrial fibrillation. A P wave dispersion (PWD) represents heterogeneity in atrial refractoriness. Aim: To investigate PWDs in patients with pre-diabetes. Method: Based on the results of examinations, 84 pre-dia ...
... Background: It is known that overt diabetes as well as chronic hyperglycaemia can lead to atrial fibrillation. A P wave dispersion (PWD) represents heterogeneity in atrial refractoriness. Aim: To investigate PWDs in patients with pre-diabetes. Method: Based on the results of examinations, 84 pre-dia ...
Heart rate variability in myocardial infarction and heart failure
... reduction in SDNN was a more powerful predictor of death risk, due to progressive heart failure, than the other conventional clinical measurements. A short term HRV analysis of moderate to severe congestive heart failure (age 52 ± 9 years, LVEF 24 ± 7%, NYHA class 2.3 ± 0.7) patients was reported by ...
... reduction in SDNN was a more powerful predictor of death risk, due to progressive heart failure, than the other conventional clinical measurements. A short term HRV analysis of moderate to severe congestive heart failure (age 52 ± 9 years, LVEF 24 ± 7%, NYHA class 2.3 ± 0.7) patients was reported by ...
Chapter 18: Cardiovascular System (Anatomy)
... Have unstable resting potentials called pacemaker potentials ...
... Have unstable resting potentials called pacemaker potentials ...
OntoDiagram - UMKC School of Computing and Engineering
... flow and a normal flow velocity across the aortic valve with no evidence of stenosis. note There is marked hypoplasia of the pulmonary valve annulus. note The pulmonary valve annulus measures 2.1 mm in the long axis outflow view. note The peak velocity across the aortic valve is 1.3 meters/second. n ...
... flow and a normal flow velocity across the aortic valve with no evidence of stenosis. note There is marked hypoplasia of the pulmonary valve annulus. note The pulmonary valve annulus measures 2.1 mm in the long axis outflow view. note The peak velocity across the aortic valve is 1.3 meters/second. n ...
Chapter 18: Cardiovascular System (Anatomy)
... Have unstable resting potentials called pacemaker potentials ...
... Have unstable resting potentials called pacemaker potentials ...
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.