Perioperative Evaluation of Patients with Known or Suspected Ca
... - Clinically stable over the past several weeks no further testing CHF and Preserved LVEF - Do not tolerate tachycardia, intravascular volume shifts - More perioperative management problems than stable well compensated patients with low LVEF ...
... - Clinically stable over the past several weeks no further testing CHF and Preserved LVEF - Do not tolerate tachycardia, intravascular volume shifts - More perioperative management problems than stable well compensated patients with low LVEF ...
WHAT IS CONGESTIVE HEART FAILURE?
... Congestive heart failure is not a static (unchanging) condition. Heart failure may deteriorate for a variety of reasons. For instance: excessive salt or fluid intake, intercurrent illness such as flu or pneumonia, cardiac arrhythmias, anemia, medications which cause salt retention such as anti-infla ...
... Congestive heart failure is not a static (unchanging) condition. Heart failure may deteriorate for a variety of reasons. For instance: excessive salt or fluid intake, intercurrent illness such as flu or pneumonia, cardiac arrhythmias, anemia, medications which cause salt retention such as anti-infla ...
O A
... induced-cardiac hypertrophyneeds to be elucidated. In this regard it has beensuggested that induction of angiotensin receptor type 1 (AT1) expression in the heartand elevation of circulating anabolic hormonesmay be involved [2,8]. In this study, coronary flow, left ventricular developed pressure and ...
... induced-cardiac hypertrophyneeds to be elucidated. In this regard it has beensuggested that induction of angiotensin receptor type 1 (AT1) expression in the heartand elevation of circulating anabolic hormonesmay be involved [2,8]. In this study, coronary flow, left ventricular developed pressure and ...
heart sounds
... the atrioventricular (mitral & tricuspid) valves. It is produced during isometric contraction period & earlier part of ejection period or at the start of ventricular systole. Characteristics: This is long, soft & low pitched sound It resembles the spoken word “LUBB” The duration of sound is ...
... the atrioventricular (mitral & tricuspid) valves. It is produced during isometric contraction period & earlier part of ejection period or at the start of ventricular systole. Characteristics: This is long, soft & low pitched sound It resembles the spoken word “LUBB” The duration of sound is ...
Sheep Heart Dissection
... 7. Cut through the wall of the aorta until you see the aortic semilunar valve. Identify the two openings into the coronary arteries just above the valve. Insert a probe into one of these holes to see if you can follow the course of a coronary artery across the heart. 8. Turn the heart to view its po ...
... 7. Cut through the wall of the aorta until you see the aortic semilunar valve. Identify the two openings into the coronary arteries just above the valve. Insert a probe into one of these holes to see if you can follow the course of a coronary artery across the heart. 8. Turn the heart to view its po ...
PROBLEM SET 3 SOLUTIONS February 26, 2004
... A. Based on your understanding of the dipole theory of electrocardiography, sketch the expected ECG waveforms along the lead I axis, the aVF axis, and the third perpendicular axis projecting out of the chest (V2). Consider only the depolarization waveform. ...
... A. Based on your understanding of the dipole theory of electrocardiography, sketch the expected ECG waveforms along the lead I axis, the aVF axis, and the third perpendicular axis projecting out of the chest (V2). Consider only the depolarization waveform. ...
Sudden Cardiac Death - Hellenic Journal of Cardiology
... Shortness of breath Syncope Palpitations Arrhythmias: Paroxysmal atrial fibrillation Chronic atrial fibrillation Non-sustained ventricular tachycardia NYHA functional class: NYHA I NYHA II NYHA III NYHA IV ...
... Shortness of breath Syncope Palpitations Arrhythmias: Paroxysmal atrial fibrillation Chronic atrial fibrillation Non-sustained ventricular tachycardia NYHA functional class: NYHA I NYHA II NYHA III NYHA IV ...
Cardiovascular System
... -Red granulation tissue invades the infarct area from outside inwards. M/E :- -Replacement of neurophils by macrophages which engulf necrotic debris. - Starting invasion of the infarct by young granulation tissue from the periphery to the center ...
... -Red granulation tissue invades the infarct area from outside inwards. M/E :- -Replacement of neurophils by macrophages which engulf necrotic debris. - Starting invasion of the infarct by young granulation tissue from the periphery to the center ...
Subacute cardiac perforations associated with active
... uncommon complication of a pacemaker, implantable cardioverter defibrillator (ICD), or cardiac resynchronization therapy device (CRT) implantation. The published incidence of this complication varies from 0.4 even to 5.2%, but nowadays it is usually lower than 1%.1 – 6 The use of active fixation lea ...
... uncommon complication of a pacemaker, implantable cardioverter defibrillator (ICD), or cardiac resynchronization therapy device (CRT) implantation. The published incidence of this complication varies from 0.4 even to 5.2%, but nowadays it is usually lower than 1%.1 – 6 The use of active fixation lea ...
www.laney.edu
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
C a rd i o v a s c u l... P re g n a n c y Sarah K. Sommerkamp, ,
... mother to less radiation but exposes the fetus to more. CT may reveal alternate pathology. The dose of radiation for both is within “acceptable” limits. However, given that any amount of radiation increases the lifetime risk of cancer, the decision must be made on a case-by-case basis. For example, ...
... mother to less radiation but exposes the fetus to more. CT may reveal alternate pathology. The dose of radiation for both is within “acceptable” limits. However, given that any amount of radiation increases the lifetime risk of cancer, the decision must be made on a case-by-case basis. For example, ...
the vascular system control of the cardiovascular system
... • LIKE THE LUNG, THE HEART HAS ITS OWN CIRCULATORY SYSTEM, WHICH IS CALLED CORONARY CIRCULATION. HOWEVER, UNLIKE THE LUNG, THE HEART HAS A HIGH METABOLIC RATE, WHICH REQUIRES MORE BLOOD FLOW PER GRAM OF TISSUE WEIGHT THAN ANY OTHER ORGAN EXCEPT THE KIDNEY. TO MEET THESE NEEDS, THE CORONARY CIRCULATI ...
... • LIKE THE LUNG, THE HEART HAS ITS OWN CIRCULATORY SYSTEM, WHICH IS CALLED CORONARY CIRCULATION. HOWEVER, UNLIKE THE LUNG, THE HEART HAS A HIGH METABOLIC RATE, WHICH REQUIRES MORE BLOOD FLOW PER GRAM OF TISSUE WEIGHT THAN ANY OTHER ORGAN EXCEPT THE KIDNEY. TO MEET THESE NEEDS, THE CORONARY CIRCULATI ...
Inducible Ventricular Fibrillation in the Brugada Syndrome
... the designation of VF as “a nonspecific response to aggressive extrastimulation that has no diagnostic value in patients with no heart disease and no documented arrhythmias,”8 a designation that is still in vogue 2 decades later.9 Furthermore, because the induction of these nonspecific polymorphic a ...
... the designation of VF as “a nonspecific response to aggressive extrastimulation that has no diagnostic value in patients with no heart disease and no documented arrhythmias,”8 a designation that is still in vogue 2 decades later.9 Furthermore, because the induction of these nonspecific polymorphic a ...
Experiment 4 - UniMAP Portal
... The electrical activity of the heart Cardiac contractions are not dependent upon a nerve supply. However, innervation by the parasympathetic (vagus) and sympathetic nerves does modify the basic cardiac rhythm. Thus the central nervous system can affect this rhythm. The best known example of this is ...
... The electrical activity of the heart Cardiac contractions are not dependent upon a nerve supply. However, innervation by the parasympathetic (vagus) and sympathetic nerves does modify the basic cardiac rhythm. Thus the central nervous system can affect this rhythm. The best known example of this is ...
Accelerated Ventricular Rhythm and Cocaine Abuse
... cardiac arrest. W e describe here a patient with accelerated ventricular rhythm arising as a consequence of cocaine abuse. T o our k n o w l e d g e this association has not been previously d o c u mented. A 37-year-old man was admitted to Good Samaritan Hospital with palpitations. He had a 3-year h ...
... cardiac arrest. W e describe here a patient with accelerated ventricular rhythm arising as a consequence of cocaine abuse. T o our k n o w l e d g e this association has not been previously d o c u mented. A 37-year-old man was admitted to Good Samaritan Hospital with palpitations. He had a 3-year h ...
Mitral Valve Prolapse and Borderline Hypertension
... under baseline conditions in 21 patients with idiopathic mitral valve prolapse (IMVP), 13 with and eight without borderline hypertension, and compared with two control populations comprised of 34 normotensive and 15 borderline hypertensive subjects without mitral valve prolapse. The IMVP population ...
... under baseline conditions in 21 patients with idiopathic mitral valve prolapse (IMVP), 13 with and eight without borderline hypertension, and compared with two control populations comprised of 34 normotensive and 15 borderline hypertensive subjects without mitral valve prolapse. The IMVP population ...
Changes in left ventricular filling and left atrial function six
... Manuscript received December 31, 1998; revised manuscript received March 31, 1999, accepted June 23, 1999. ...
... Manuscript received December 31, 1998; revised manuscript received March 31, 1999, accepted June 23, 1999. ...
Infective endocarditis in chronic haemodialysis patients: an increasing clinical challenge Review
... prognosis. Recently, Ruiz et al.30 found a significantly higher early and late mortality among HD patients when compared with patients not receiving HD (30 days mortality: 43 vs. 16%; 24 months mortality: 64 vs. 25%, respectively). Mortality rate was similar in the HD patients series studied by McCar ...
... prognosis. Recently, Ruiz et al.30 found a significantly higher early and late mortality among HD patients when compared with patients not receiving HD (30 days mortality: 43 vs. 16%; 24 months mortality: 64 vs. 25%, respectively). Mortality rate was similar in the HD patients series studied by McCar ...
Cardiovascular System Part 1
... – Coronary arteries—branch from the aorta to supply the heart muscle with oxygenated blood – Cardiac veins—drain the myocardium of blood – Coronary sinus—a large vein on the posterior of the heart, receives blood from cardiac veins ...
... – Coronary arteries—branch from the aorta to supply the heart muscle with oxygenated blood – Cardiac veins—drain the myocardium of blood – Coronary sinus—a large vein on the posterior of the heart, receives blood from cardiac veins ...
Section Six:
... L/min/m2. It is a more meaningful value than CO because size is considered. Cardiac output or index is always evaluated by analysis of its determinants, heart rate and stroke volume. Tachycardia may initially increase cardiac output, but further increases in heart rate may reduce cardiac output as a ...
... L/min/m2. It is a more meaningful value than CO because size is considered. Cardiac output or index is always evaluated by analysis of its determinants, heart rate and stroke volume. Tachycardia may initially increase cardiac output, but further increases in heart rate may reduce cardiac output as a ...
Single and Dual Chamber Pacemaker Timing Module 6 1
... • Potential complications include, but are not limited to, valve damage, fibrillation and other arrhythmias, thrombosis, thrombotic and air embolism, cardiac perforation, heart wall rupture, cardiac tamponade, muscle or nerve stimulation, pericardial rub, infection, myocardial irritability, and pneu ...
... • Potential complications include, but are not limited to, valve damage, fibrillation and other arrhythmias, thrombosis, thrombotic and air embolism, cardiac perforation, heart wall rupture, cardiac tamponade, muscle or nerve stimulation, pericardial rub, infection, myocardial irritability, and pneu ...
Exercise testing in pulmonary arterial hypertension and in chronic
... threshold. This effect, which was more pronounced in the PAH patients, has been previously reported in patients with ischaemic heart disease [21] and PPH [4]. This may be explained by cardiac output limitation, as also suggested by marked decreases in peak oxygen pulse and peak cardiac frequency in ...
... threshold. This effect, which was more pronounced in the PAH patients, has been previously reported in patients with ischaemic heart disease [21] and PPH [4]. This may be explained by cardiac output limitation, as also suggested by marked decreases in peak oxygen pulse and peak cardiac frequency in ...
Exercise-Induced Left Bundle Branch Block and Chest Pain in the
... case of chest pain with exercise-induced LBBB with unusual features. A 59-year-old female was referred for evaluation of atypical chest pain. She was on medications for hypertension, dyslipidemia, and hypothyroidism. She denied tobacco or alcohol use. She underwent a Bruce protocol exercise treadmil ...
... case of chest pain with exercise-induced LBBB with unusual features. A 59-year-old female was referred for evaluation of atypical chest pain. She was on medications for hypertension, dyslipidemia, and hypothyroidism. She denied tobacco or alcohol use. She underwent a Bruce protocol exercise treadmil ...
CHAPTER 15. HEART MURMURS AND PAIN ACQUIRED HEART
... Symptoms usually occur late in the course of the disease and represent myocardial decompensation. Sudden death is a frequent occurrence in untreated patients at this stage. Life expectancy averages 4 years after the onset of symptoms. The classic systolic crescendo-decrescendo murmur is heard ...
... Symptoms usually occur late in the course of the disease and represent myocardial decompensation. Sudden death is a frequent occurrence in untreated patients at this stage. Life expectancy averages 4 years after the onset of symptoms. The classic systolic crescendo-decrescendo murmur is heard ...
Continued symptomatic improvement three to five years after
... some studies (20,22,23) and has not encouraged the use of TMR in high-risk patients. Proper patient selection and perioperative care have reduced risk and mortality (14,15,24). Our selection criteria were based on clinical experience available in the literature until 1995 and excluded high-risk pati ...
... some studies (20,22,23) and has not encouraged the use of TMR in high-risk patients. Proper patient selection and perioperative care have reduced risk and mortality (14,15,24). Our selection criteria were based on clinical experience available in the literature until 1995 and excluded high-risk pati ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.