Hypertrophic Cardiomyopathy Guide
... a small amount of the thickened septal wall to widen the outflow tract (the path the blood takes) from the left ventricle to the aorta. This eliminates the obstruction and the mitral valve regurgitation that occurs with this condition. Patients often experience rapid relief of symptoms after the pro ...
... a small amount of the thickened septal wall to widen the outflow tract (the path the blood takes) from the left ventricle to the aorta. This eliminates the obstruction and the mitral valve regurgitation that occurs with this condition. Patients often experience rapid relief of symptoms after the pro ...
ACUTE CORONARY SYNDROMES: Acute MI
... Pts with chest pain syndromes after CABG – may have abrupt vessel closure – symptoms of recurrent ischemia can be confused with post-AMI pericarditis ...
... Pts with chest pain syndromes after CABG – may have abrupt vessel closure – symptoms of recurrent ischemia can be confused with post-AMI pericarditis ...
Respiratory correlates of muscle sympathetic
... 10 cm.H O or more increases MSNA [13,14]. This effect ...
... 10 cm.H O or more increases MSNA [13,14]. This effect ...
Global Impairment of Cardiac Autonomic Nervous
... Right and left atrial (RA and LA) sizes were measured off-line in 2 planes, transverse and supero-inferior, by a single investigator (WL) blinded to the other data. For patients with a total cavo-pulmonary connection type of Fontan–all of them intracrdiac–right atrial measurements were made on the a ...
... Right and left atrial (RA and LA) sizes were measured off-line in 2 planes, transverse and supero-inferior, by a single investigator (WL) blinded to the other data. For patients with a total cavo-pulmonary connection type of Fontan–all of them intracrdiac–right atrial measurements were made on the a ...
FETAL PHYSIOLOGICAL DEVELOPMENT
... • Presence of shunts which allow oxygenated blood to bypass the right ventricle and pulmonary circulation, flow directly to the left ventricle, and for the aorta to supply the heart and brain • 3 shunts: - Ductus venosus - Foramen ovale - Ductus arteriosus ...
... • Presence of shunts which allow oxygenated blood to bypass the right ventricle and pulmonary circulation, flow directly to the left ventricle, and for the aorta to supply the heart and brain • 3 shunts: - Ductus venosus - Foramen ovale - Ductus arteriosus ...
Autoregulation of cardiac output is overcome by adrenergic
... intact. Following instrumentation, the preparation was transferred to an organ bath containing 0.9% NaCl and perfusion with Ringer’s solution was resumed. The double-bored cannulae (see Franklin and Axelsson, 1994) allowed continuous measurements of pressure at the tip of insertion. Pressure cannula ...
... intact. Following instrumentation, the preparation was transferred to an organ bath containing 0.9% NaCl and perfusion with Ringer’s solution was resumed. The double-bored cannulae (see Franklin and Axelsson, 1994) allowed continuous measurements of pressure at the tip of insertion. Pressure cannula ...
The Responses of Cardiac Sympathetic Nerve Activity to Changes in
... baroreflex control of CSNA was not desensitised in a pacing model of HF in conscious sheep (36). This raised the possibility that cardiac neural reflexes, specifically the cardiac sympathoexcitatory mechano-reflex driven by the fluid retention and increased cardiac filling pressures, contribute to t ...
... baroreflex control of CSNA was not desensitised in a pacing model of HF in conscious sheep (36). This raised the possibility that cardiac neural reflexes, specifically the cardiac sympathoexcitatory mechano-reflex driven by the fluid retention and increased cardiac filling pressures, contribute to t ...
Transport in Humans
... To prevent tissue rejection: • a tissue match is necessary – tissues from both donor and recipient must be as genetically close as possible • take immunosuppressive drugs which inhibit the responses of the recipient’s immune system – recipient’s resistance to other infections is reduced – recipient ...
... To prevent tissue rejection: • a tissue match is necessary – tissues from both donor and recipient must be as genetically close as possible • take immunosuppressive drugs which inhibit the responses of the recipient’s immune system – recipient’s resistance to other infections is reduced – recipient ...
Clinical Examination: ECG library
... 2 The ECG in Case 2 shows sinus rhythm: each QRS complex is preceded by a P wave which represents atrial contraction. Examples of other cardiac rhythms are shown later. 3 The PR interval is measured from the beginning of the P wave to the beginning of the QRS complex. The upper limit of normal is 20 ...
... 2 The ECG in Case 2 shows sinus rhythm: each QRS complex is preceded by a P wave which represents atrial contraction. Examples of other cardiac rhythms are shown later. 3 The PR interval is measured from the beginning of the P wave to the beginning of the QRS complex. The upper limit of normal is 20 ...
06. Interventions for Clients with Dysrhythmias
... the heart rate to approximately 60 beats/min. Oxygen should be applied. If the heart rate does not increase sufficiently, the nurse may apply an external pacemaker to increase the heart rate and notify the physician. However, if atropine administration succeeds in achieving an adequate heart rate bu ...
... the heart rate to approximately 60 beats/min. Oxygen should be applied. If the heart rate does not increase sufficiently, the nurse may apply an external pacemaker to increase the heart rate and notify the physician. However, if atropine administration succeeds in achieving an adequate heart rate bu ...
Valvular Heart Diseases - Interventional Cardiology Journal
... treatment of symptomatic aortic stenosis (AS). In properly selected patients, this surgical procedure offers substantial improvements in symptoms and life expectancy (Figure 2). However, approximately one third of patients are not referred to surgery and the reasons include the high risk of heart su ...
... treatment of symptomatic aortic stenosis (AS). In properly selected patients, this surgical procedure offers substantial improvements in symptoms and life expectancy (Figure 2). However, approximately one third of patients are not referred to surgery and the reasons include the high risk of heart su ...
Review Game
... the left ventricle. It finally leaves the heart after passing through the aortic semilunar valve to the aorta to the body. (enters right atrium from body --> right ...
... the left ventricle. It finally leaves the heart after passing through the aortic semilunar valve to the aorta to the body. (enters right atrium from body --> right ...
Indications for dual-chamber cardioverter defibrillators at
... At implant, sinus node dysfunction was documented in 13 patients (8·5%), second- or third-degree AV block in three patients (2%), first-degree AV block (PR interval 0·270·02 s) in 16 patients (11%), paroxysmal atrial fibrillation in 10 patients (6·5%), and chronic atrial fibrillation in 10 patients ...
... At implant, sinus node dysfunction was documented in 13 patients (8·5%), second- or third-degree AV block in three patients (2%), first-degree AV block (PR interval 0·270·02 s) in 16 patients (11%), paroxysmal atrial fibrillation in 10 patients (6·5%), and chronic atrial fibrillation in 10 patients ...
Optimal pacing strategies for coming off CPB
... stimulate a propagated action potential in the myocardium. Pacing threshold is confirmed by setting the pacemaker rate above the patient's intrinsic rate such that the respective chamber is being consistently paced. The pacemaker energy output is then slowly reduced until loss of capture occurs. Thi ...
... stimulate a propagated action potential in the myocardium. Pacing threshold is confirmed by setting the pacemaker rate above the patient's intrinsic rate such that the respective chamber is being consistently paced. The pacemaker energy output is then slowly reduced until loss of capture occurs. Thi ...
Mechanical Properties of the Heart Contractility Cardiac Cycle
... - increased Ao pressure rises the coronary perfusion; an increase in the coronary artery pressure is distending the heart from within its walls (stretch), inducing a better shortening of the myocardial fibers ...
... - increased Ao pressure rises the coronary perfusion; an increase in the coronary artery pressure is distending the heart from within its walls (stretch), inducing a better shortening of the myocardial fibers ...
Dexterity optimization by port placement in robot
... The approach taken in this paper is to decompose the overall dexterity problem into two sub-problems: port placement and robot placement. Port placement deals with difficulties 1-3 while robot placement controls difficulties 4-5. By employing this decomposition, the problem of port placement can be ...
... The approach taken in this paper is to decompose the overall dexterity problem into two sub-problems: port placement and robot placement. Port placement deals with difficulties 1-3 while robot placement controls difficulties 4-5. By employing this decomposition, the problem of port placement can be ...
Backgrounder: The Risk of Stroke in Atrial Fibrillation
... To assess the right course of treatment in AF-related stroke prophylaxis, there are several sets of international, European and country-specific guidelines, and various methods exist to categorise stroke risk. The simplest risk assessment scheme is the CHADS2 score, which is based on a point system ...
... To assess the right course of treatment in AF-related stroke prophylaxis, there are several sets of international, European and country-specific guidelines, and various methods exist to categorise stroke risk. The simplest risk assessment scheme is the CHADS2 score, which is based on a point system ...
Left Ventricular Diastolic Filling is Improved by Atrial Natriuretic
... control flow). 4 minutes of ischaemia caused s b n i n g of the APD from 200 2 msec to 185 + 9msec (-7%; n = 4). During the same intervention there was a 4.7-fold increase in the unidirectional86Rb efflux rate constant assessed by on-line flactivity counting (control = 0.01 i 0.mmin-1; ischaemia = 0 ...
... control flow). 4 minutes of ischaemia caused s b n i n g of the APD from 200 2 msec to 185 + 9msec (-7%; n = 4). During the same intervention there was a 4.7-fold increase in the unidirectional86Rb efflux rate constant assessed by on-line flactivity counting (control = 0.01 i 0.mmin-1; ischaemia = 0 ...
37–1 The Circulatory System
... Cardiovascular diseases are among the leading causes of death and disability in the U.S. Atherosclerosis is a condition in which fatty deposits called plaque build up on the inner walls of the arteries. High blood pressure is defined as a sustained elevated blood pressure of 140/90 or higher. Slide ...
... Cardiovascular diseases are among the leading causes of death and disability in the U.S. Atherosclerosis is a condition in which fatty deposits called plaque build up on the inner walls of the arteries. High blood pressure is defined as a sustained elevated blood pressure of 140/90 or higher. Slide ...
Introduction to the 12
... Represents atrial depolarisation – Normal: ~ 0.10 s in duration, with an amplitude of 0.50 to 2.50 mm. PR-interval is measured from the beginning of Pwave to the beginning of the QRS-complex (whether this a Q-wave or an R-wave) – Normal: 0.12 to 0.20 s in duration. Digoxin prolongs the PR-interval, ...
... Represents atrial depolarisation – Normal: ~ 0.10 s in duration, with an amplitude of 0.50 to 2.50 mm. PR-interval is measured from the beginning of Pwave to the beginning of the QRS-complex (whether this a Q-wave or an R-wave) – Normal: 0.12 to 0.20 s in duration. Digoxin prolongs the PR-interval, ...
Cardiology-Feline Cardio - Acapulco-Vet
... c. It is a very common form of cardiomyopathy in the cat. d. It can easily be mistaken for tricuspid dysplasia. e. No breed predilection is known. 5. Which statement is false regarding HCM in the cat: a. Systemic hypertension is a common cause of secondary HCM. b. Hypothyroidism is a common cause of ...
... c. It is a very common form of cardiomyopathy in the cat. d. It can easily be mistaken for tricuspid dysplasia. e. No breed predilection is known. 5. Which statement is false regarding HCM in the cat: a. Systemic hypertension is a common cause of secondary HCM. b. Hypothyroidism is a common cause of ...
Dobutamine stress echo-induced apical ballooning (Takotsubo
... motion abnormalities can cause intracavity LV gradient, which can cause haemodynamic instability, and result in systolic anterior motion of the anterior mitral leaflet, producing posteriorly directed mitral regurgitation.8 Recovery is usually rapid, although heart failure, cardiogenic shock, ventric ...
... motion abnormalities can cause intracavity LV gradient, which can cause haemodynamic instability, and result in systolic anterior motion of the anterior mitral leaflet, producing posteriorly directed mitral regurgitation.8 Recovery is usually rapid, although heart failure, cardiogenic shock, ventric ...
Incidence and etiology of sudden cardiac death in young athletes
... Sudden Cardiac Death of unknown cause A considerable subset of SCDs, however, occur in the absence of an evident structural or electrical cardiac disorder. In Burkes study, 6/34 sports-related SCDs were of unknown causes [10], while other studies have found a “normal heart” in 1–7% of SCD cases [11, ...
... Sudden Cardiac Death of unknown cause A considerable subset of SCDs, however, occur in the absence of an evident structural or electrical cardiac disorder. In Burkes study, 6/34 sports-related SCDs were of unknown causes [10], while other studies have found a “normal heart” in 1–7% of SCD cases [11, ...
Publications_files/Burggren et al.ActaPhysiol.2013
... Phenotypic manipulation By surgical or pharmacological manipulations of given cardiovascular traits, it is possible to quantify how relevant performance variables are affected and hence provide insight into the functional significance of the trait (Sinervo & Basolo 1996). A challenge of such studies ...
... Phenotypic manipulation By surgical or pharmacological manipulations of given cardiovascular traits, it is possible to quantify how relevant performance variables are affected and hence provide insight into the functional significance of the trait (Sinervo & Basolo 1996). A challenge of such studies ...
Idiopathic ventricular tachycardia arising from the right ventricular apex
... A 53-year-old Caucasian male presented to the ER complaining of palpitations and mild chest pain lasting for 40 min that started while he was working at his desktop. Twelvelead ECG showed wide QRS complex tachycardia, left bundle with left superior axis morphology, late transition at a cycle length ...
... A 53-year-old Caucasian male presented to the ER complaining of palpitations and mild chest pain lasting for 40 min that started while he was working at his desktop. Twelvelead ECG showed wide QRS complex tachycardia, left bundle with left superior axis morphology, late transition at a cycle length ...