Effect of Therapy on Left Ventricular Function in
... ventricular function in untreated hypertensive patients without any clinical evidence of heart failure is not abnormally depressed. These data are consistent with the result of a previous study (Karliner et al., 1977) which showed that hypertensive patients who were under antihypertensive therapy de ...
... ventricular function in untreated hypertensive patients without any clinical evidence of heart failure is not abnormally depressed. These data are consistent with the result of a previous study (Karliner et al., 1977) which showed that hypertensive patients who were under antihypertensive therapy de ...
Document
... Poor systolic performance of the heart resulting in decreased cardiac output and increased venous pressures Typically occurs in association with impaired left ventricular systolic function due to any number of causes Left ventricular ejection fraction (LVEF) of <40% Heart Failure with Preser ...
... Poor systolic performance of the heart resulting in decreased cardiac output and increased venous pressures Typically occurs in association with impaired left ventricular systolic function due to any number of causes Left ventricular ejection fraction (LVEF) of <40% Heart Failure with Preser ...
Lesson Plans
... The Cardiac Cycle Cardiac cycle—the sequence of events in one heartbeat. Two basic components Contraction phase (systole)—blood is ejected from chambers of the heart. Relaxation phase (diastole)—heart is at rest and chambers fill with blood. Process: The SA node generates an electrical i ...
... The Cardiac Cycle Cardiac cycle—the sequence of events in one heartbeat. Two basic components Contraction phase (systole)—blood is ejected from chambers of the heart. Relaxation phase (diastole)—heart is at rest and chambers fill with blood. Process: The SA node generates an electrical i ...
Transcatheter Aortic Valve Implantation After Heart Transplantation
... a paucity of data in the literature on the surgical management of post-transplant cardiac disease. In 1991, we believe that Copeland and coworkers [6] were the first to report a successful mitral valve replacement in a 33-yearold man with severe mitral regurgitation 6 years after cardiac transplanta ...
... a paucity of data in the literature on the surgical management of post-transplant cardiac disease. In 1991, we believe that Copeland and coworkers [6] were the first to report a successful mitral valve replacement in a 33-yearold man with severe mitral regurgitation 6 years after cardiac transplanta ...
3D anatomical modelling of the human cardiac conduction system
... Figure 1.1. Anatomical location of sinus node. ........................................................ 19 Figure 1.2. Histology and immunohistochemistry for Cx43 of human sinus node and surrounding tissue. ............................................................................................. ...
... Figure 1.1. Anatomical location of sinus node. ........................................................ 19 Figure 1.2. Histology and immunohistochemistry for Cx43 of human sinus node and surrounding tissue. ............................................................................................. ...
TCD for assessment of stroke risk in SCD
... Philips Healthcare (Best, the Netherlands; www.medical.philips.com) ...
... Philips Healthcare (Best, the Netherlands; www.medical.philips.com) ...
Left Ventricular Mechanical Support with Impella
... However, ECMO systems have device-related disadvantages such as hemolysis, coagulation disorders, and limited device durability. Furthermore, the efficacy of ECMO has been questioned with respect to the mechanoenergetic status of the heart.4,5 Adverse effects of ECMO on a failing heart are increased ...
... However, ECMO systems have device-related disadvantages such as hemolysis, coagulation disorders, and limited device durability. Furthermore, the efficacy of ECMO has been questioned with respect to the mechanoenergetic status of the heart.4,5 Adverse effects of ECMO on a failing heart are increased ...
Task force I: Congenital heart disease
... DAN G. McNAMARA, MD, FACC, CHAIRMAN, J. TIMOTHY BRICKER, MD, FRANK M. GALIOTO, JR., MD, FACC, THOMAS P. GRAHAM, JR., MD, FACC, FREDERICK W. JAMES, MD, FACC, AM NON ROSENTHAL, MD, FACC ...
... DAN G. McNAMARA, MD, FACC, CHAIRMAN, J. TIMOTHY BRICKER, MD, FRANK M. GALIOTO, JR., MD, FACC, THOMAS P. GRAHAM, JR., MD, FACC, FREDERICK W. JAMES, MD, FACC, AM NON ROSENTHAL, MD, FACC ...
The Heart and Circulatory System
... When the ventricles are empty, the valves leading out of the heart close and the heart muscle relaxes. This completes the sequence of ...
... When the ventricles are empty, the valves leading out of the heart close and the heart muscle relaxes. This completes the sequence of ...
PDF - Circulation: Arrhythmia and Electrophysiology
... patient was from the abandonment or explantation group, and the independent variables were baseline variables regarded as potentially clinically important. Independent variables included those listed in 1 and 2. Of note, because we could not differentiate implant duration for the lead being revised ...
... patient was from the abandonment or explantation group, and the independent variables were baseline variables regarded as potentially clinically important. Independent variables included those listed in 1 and 2. Of note, because we could not differentiate implant duration for the lead being revised ...
Chapter 7
... While the fetal heart is developing, a tube develops between the aorta and the pulmonary artery. This tube, called the ductus arteriosus, is responsible for bypassing the lungs, moving blood from the pulmonary artery to the aorta. Because the fetus receives oxygenated blood from its mother through t ...
... While the fetal heart is developing, a tube develops between the aorta and the pulmonary artery. This tube, called the ductus arteriosus, is responsible for bypassing the lungs, moving blood from the pulmonary artery to the aorta. Because the fetus receives oxygenated blood from its mother through t ...
A Very-Short-Term Intermittency of Fetal Heart Rates and
... In this article, we introduced the so-called intermittent behavior to unveil a new pattern of FHR dynamics. Because of the unique nature of the FHR dynamics, we were able to find that the two different intermittent behaviors could coexist in an FHR. Consequently, we termed them as very-short- and sh ...
... In this article, we introduced the so-called intermittent behavior to unveil a new pattern of FHR dynamics. Because of the unique nature of the FHR dynamics, we were able to find that the two different intermittent behaviors could coexist in an FHR. Consequently, we termed them as very-short- and sh ...
Model of Differentiation between Normal and Abnormal Heart
... sounds that traditional tools like stethoscope cannot achieve. One of the most common methods used for listening and tracking the heart sounds is to record them with special devices. The recorded heart sounds is known as PCG (phonocardiogram) signal. It is a particularly useful diagnosis tool since ...
... sounds that traditional tools like stethoscope cannot achieve. One of the most common methods used for listening and tracking the heart sounds is to record them with special devices. The recorded heart sounds is known as PCG (phonocardiogram) signal. It is a particularly useful diagnosis tool since ...
Problem of the Week - Sino Canada School
... Problem E and Solution Love is Blind Valentine Problem A heart is constructed by attaching two white semi-circles, each with radius 2 cm, onto the hypotenuse of an isosceles right triangle. The heart is then pasted onto a rectangular sheet of red construction paper as illustrated below. (The dashed ...
... Problem E and Solution Love is Blind Valentine Problem A heart is constructed by attaching two white semi-circles, each with radius 2 cm, onto the hypotenuse of an isosceles right triangle. The heart is then pasted onto a rectangular sheet of red construction paper as illustrated below. (The dashed ...
Atrial fibrillation and flutter
... Rapid, regular atrial depolarisation is seen to proceed around the right atrium until sinus rhythm is restored by blocking the flutter circuit (see pp. 116–117). Fig. 1 Computer-generated map of the left atrium in a patient with atrial fibrillation due to pulmonary vein ectopy. The red dots around t ...
... Rapid, regular atrial depolarisation is seen to proceed around the right atrium until sinus rhythm is restored by blocking the flutter circuit (see pp. 116–117). Fig. 1 Computer-generated map of the left atrium in a patient with atrial fibrillation due to pulmonary vein ectopy. The red dots around t ...
Arrhythmias in Pulmonary Arterial Hypertension
... improvement in functional class after ablation. In addition, there were no observable changes in echocardiographic parameters before versus after ablation, suggesting that acute improvement in clinical status was secondary to restoration of sinus rhythm rather than cardiac remodeling. 14 The site of ...
... improvement in functional class after ablation. In addition, there were no observable changes in echocardiographic parameters before versus after ablation, suggesting that acute improvement in clinical status was secondary to restoration of sinus rhythm rather than cardiac remodeling. 14 The site of ...
Heart rate as a treatable cardiovascular risk factor
... in rate-pressure product and HR when compared with atenolol. According to these findings, ivabradine increased exercise capacity to a greater extent for every beat of HR reduction. This might be linked to ivabradine’s lack of negative inotropic, peripheral vascular or coronary vasoconstrictor effect ...
... in rate-pressure product and HR when compared with atenolol. According to these findings, ivabradine increased exercise capacity to a greater extent for every beat of HR reduction. This might be linked to ivabradine’s lack of negative inotropic, peripheral vascular or coronary vasoconstrictor effect ...
Frequent Premature Ventricular Contractions
... controls. The ventricular tachycardia was especially associated with LVH and ST-T wave changes on EKG.6 It is difficult to correlate the impact of PVCs in the mortality of LVH due to the confounding presence of hypertension and coronary artery disease in these patients. It stands to reason, however, ...
... controls. The ventricular tachycardia was especially associated with LVH and ST-T wave changes on EKG.6 It is difficult to correlate the impact of PVCs in the mortality of LVH due to the confounding presence of hypertension and coronary artery disease in these patients. It stands to reason, however, ...
Automated External Defibrillator Policies and Procedures
... (both practice and competition) present a high risk for cardiopulmonary emergencies. Therefore, by training certified athletic trainers and team physicians in the use of AEDs, the emergency response time is shortened. Explanation of the Use of AED Automated external defibrillator, or AED, means a de ...
... (both practice and competition) present a high risk for cardiopulmonary emergencies. Therefore, by training certified athletic trainers and team physicians in the use of AEDs, the emergency response time is shortened. Explanation of the Use of AED Automated external defibrillator, or AED, means a de ...
Ferrari_ nature
... clinical trials have consistently shown that elevated heart rate is associated with increased mortality and rates of cardiac events in patients with cardiovascular disease1,12,13,30. In BEAUTIFUL,10,11 the relative risk of cardiovascular death was increased by 34% in patients receiving placebo who h ...
... clinical trials have consistently shown that elevated heart rate is associated with increased mortality and rates of cardiac events in patients with cardiovascular disease1,12,13,30. In BEAUTIFUL,10,11 the relative risk of cardiovascular death was increased by 34% in patients receiving placebo who h ...
Cardiovascular - WordPress.com
... d) it is unusual in the presence of substantial atherosclerosis e) it is usually caused by an intimal tear within 10cm of the aortic valve ...
... d) it is unusual in the presence of substantial atherosclerosis e) it is usually caused by an intimal tear within 10cm of the aortic valve ...
Running head: PROFESSIONAL ACTION PLAN FOR ISCHEMIC
... muscles receive reduced supply of blood (Gibson, Shah & Umberger, 2014 359). Consequently, IHD causes a discrepancy between the oxygen and supply and demand. IHD reflects a manifestation of atherosclerosis of the coronary artery that can happen gradually or faster leading to their blockage (Lilly, 2 ...
... muscles receive reduced supply of blood (Gibson, Shah & Umberger, 2014 359). Consequently, IHD causes a discrepancy between the oxygen and supply and demand. IHD reflects a manifestation of atherosclerosis of the coronary artery that can happen gradually or faster leading to their blockage (Lilly, 2 ...
Pediatric Cardiothoracic Surgery
... • If GA is not being used, IV sedation should only be given by those trained in the use of conscious sedation, airway management & resuscitation of children, using full monitoring equipment. [D] • Ultrasound should be used to guide thoracocentesis or drain placement. [C] ...
... • If GA is not being used, IV sedation should only be given by those trained in the use of conscious sedation, airway management & resuscitation of children, using full monitoring equipment. [D] • Ultrasound should be used to guide thoracocentesis or drain placement. [C] ...
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.