PDF - Circulation: Cardiovascular Quality and Outcomes
... Key Words: atrial fibrillation ◼ morbidity ◼ mortality ◼ quality of life ◼ symptoms ...
... Key Words: atrial fibrillation ◼ morbidity ◼ mortality ◼ quality of life ◼ symptoms ...
Pharmacologic and Non-Pharmacologic Treatment of Chronic Atrial
... with good results in the rhythm-control arm27. Therefore, many experts believe that rhythm control with safe antiarrhythmic drugs or catheter ablation will play an important role in the AF management. The main agents for slowing ventricular response in AF are beta blockers, calcium channel blockers, ...
... with good results in the rhythm-control arm27. Therefore, many experts believe that rhythm control with safe antiarrhythmic drugs or catheter ablation will play an important role in the AF management. The main agents for slowing ventricular response in AF are beta blockers, calcium channel blockers, ...
The early development of the atrioventricular node and bundle of
... early stages of heart formation, cells do not show enough differences between the various regions to permit their accurate distinction. It would then be useful to apply a more precise and complementary identification procedure, such as membrane action potential recording, to characterize the differe ...
... early stages of heart formation, cells do not show enough differences between the various regions to permit their accurate distinction. It would then be useful to apply a more precise and complementary identification procedure, such as membrane action potential recording, to characterize the differe ...
relation of the first and second heart sounds to events in the cardiac
... in relation to the events of the cardiac cycle." This is even truer to-day than when Lewis first stated it (1915), because methods for recording events in the cardiac cycle have become more precise. In spite of this, there is still lack of agreement on the origin of the heart sounds. The causes of t ...
... in relation to the events of the cardiac cycle." This is even truer to-day than when Lewis first stated it (1915), because methods for recording events in the cardiac cycle have become more precise. In spite of this, there is still lack of agreement on the origin of the heart sounds. The causes of t ...
DISTRIBUTION OF ACTION POTENTIAL DURATION AND T
... simulations with the cycle length of 800 ms. Figure 5 demonstrates ECG waveforms with different T-wave shapes simulated for the APD90 distribution dependences calculated with the functions A-F [Eqs. (15)(21)] shown in Fig. 4 and described in the previous section. The obtained waveforms were analyzed ...
... simulations with the cycle length of 800 ms. Figure 5 demonstrates ECG waveforms with different T-wave shapes simulated for the APD90 distribution dependences calculated with the functions A-F [Eqs. (15)(21)] shown in Fig. 4 and described in the previous section. The obtained waveforms were analyzed ...
Rapidly detecting disorder in rhythmic biological signals: A spectral
... In this paper we present a technique for quickly quantifying disorder in high-frequency event series: the spectral entropy is a measure of disorder applied to the power spectrum of periods of time series data. By plotting patient data on a disorder map, we observe distinct thresholds in the level an ...
... In this paper we present a technique for quickly quantifying disorder in high-frequency event series: the spectral entropy is a measure of disorder applied to the power spectrum of periods of time series data. By plotting patient data on a disorder map, we observe distinct thresholds in the level an ...
Myocardial Recovery and the Failing Heart
... St. Louis, Missouri; and New York, New York Medical and device therapies that reduce heart failure morbidity and mortality also lead to decreased left ventricular volume and mass and a more normal elliptical shape of the ventricle. These are due to changes in myocyte size, structure, and organizatio ...
... St. Louis, Missouri; and New York, New York Medical and device therapies that reduce heart failure morbidity and mortality also lead to decreased left ventricular volume and mass and a more normal elliptical shape of the ventricle. These are due to changes in myocyte size, structure, and organizatio ...
serious arrhythmia induced by terfenadine
... Antihistamines are frequently taken by patients and ...
... Antihistamines are frequently taken by patients and ...
Evidence of Incomplete Left Ventricular Relaxation in the Dog
... beat began before 3.5 T but did not always occur under these conditions. Thus, an increase in end diastolic pressure relative to diastolic volume may result from incomplete relaxation under conditions of sufficiently rapid heart rate or sufficiently prolonged ventricular relaxation. Incomplete relax ...
... beat began before 3.5 T but did not always occur under these conditions. Thus, an increase in end diastolic pressure relative to diastolic volume may result from incomplete relaxation under conditions of sufficiently rapid heart rate or sufficiently prolonged ventricular relaxation. Incomplete relax ...
Experimental Models of Heart Failure
... Congestive heart failure is one of the leading causes of cardiovascular morbidity and mortality. In the United States alone 550,000 new cases are diagnosed each year. Heart failure causes approximately 40,000 deaths a year and is a contributing factor in another 225,000 deaths in the US, where the d ...
... Congestive heart failure is one of the leading causes of cardiovascular morbidity and mortality. In the United States alone 550,000 new cases are diagnosed each year. Heart failure causes approximately 40,000 deaths a year and is a contributing factor in another 225,000 deaths in the US, where the d ...
Energy Levels at Systole vs. Diastole in Normal Hamster Hearts vs
... Jasmin et al., 1981; Rouleau et al., 1982). Catecholamines may play a major role in the development of the disease. There is a marked increase in urinary norepinephrine during the development of cardiomyopathy (Kobara et al., 1976), and an increased number of norepinephrine binding sites (Karliner e ...
... Jasmin et al., 1981; Rouleau et al., 1982). Catecholamines may play a major role in the development of the disease. There is a marked increase in urinary norepinephrine during the development of cardiomyopathy (Kobara et al., 1976), and an increased number of norepinephrine binding sites (Karliner e ...
Basic Life Support
... are constantly creating new knowledge and practice. Like any printed material, this publication may become out of date over time. Guidelines for safety and treatment recommendations cannot be given that will apply in all cases/scenarios as the circumstances of each incident often vary widely. Signs ...
... are constantly creating new knowledge and practice. Like any printed material, this publication may become out of date over time. Guidelines for safety and treatment recommendations cannot be given that will apply in all cases/scenarios as the circumstances of each incident often vary widely. Signs ...
Work and Heart Disease
... the other jobs conformed to the general pattern. These differences may be related to the fact that the foreman's job is unpredictable, with a high degree of responsibility, while the controls operators and hot-strip and slab handlers have the most routine type of work, suggesting that the resting pu ...
... the other jobs conformed to the general pattern. These differences may be related to the fact that the foreman's job is unpredictable, with a high degree of responsibility, while the controls operators and hot-strip and slab handlers have the most routine type of work, suggesting that the resting pu ...
Name of presentation
... Normal cats change with age • Long axis of the heart is more horizontal in old cats (40%) • Aortic bulge (30%) – Not due to hypertension or hyperthyroidism – At the aortic isthmus – Measurements in young & old cats are the same ...
... Normal cats change with age • Long axis of the heart is more horizontal in old cats (40%) • Aortic bulge (30%) – Not due to hypertension or hyperthyroidism – At the aortic isthmus – Measurements in young & old cats are the same ...
ACC/AHA/NASPE Practice Guidelines
... than or equal to 3.0 seconds or any escape rate less than 40 beats per minute (bpm) in awake, symptom-free patients. (Level of Evidence: B, C) d. After catheter ablation of the AV junction. (Level of Evidence: B, C) There are no trials to assess outcome without pacing, and pacing is virtually always ...
... than or equal to 3.0 seconds or any escape rate less than 40 beats per minute (bpm) in awake, symptom-free patients. (Level of Evidence: B, C) d. After catheter ablation of the AV junction. (Level of Evidence: B, C) There are no trials to assess outcome without pacing, and pacing is virtually always ...
Heart rate variability: a review | SpringerLink
... Diabetes can cause severe autonomic dysfunction and can be responsible for several disabling symptoms, including SCD. Although traditional measures of autonomic function are able to document the presence of neuropathy, in general they are only abnormal when there is severe symptomatology. Thus by th ...
... Diabetes can cause severe autonomic dysfunction and can be responsible for several disabling symptoms, including SCD. Although traditional measures of autonomic function are able to document the presence of neuropathy, in general they are only abnormal when there is severe symptomatology. Thus by th ...
Transcutaneous Pacing
... Connect the pacing electrode pads to the defibrillator. ECG monitoring leads should also be attached if the pacemaker pads are not multifunction electrode pads. If an ECG monitor is not an integral part of the unit, an output adapter to a separate monitor is required to “blank” the large electrical ...
... Connect the pacing electrode pads to the defibrillator. ECG monitoring leads should also be attached if the pacemaker pads are not multifunction electrode pads. If an ECG monitor is not an integral part of the unit, an output adapter to a separate monitor is required to “blank” the large electrical ...
Normothermic donor heart perfusion
... the elastic recoil of the native aorta. This serves two purposes: (i) it increases the compliance of the circuit thereby reducing the afterload that the heart has to overcome and (ii) it reduces the closing pressure of the aortic valve thus avoiding its exposure to excess mechanical stress. Beyond t ...
... the elastic recoil of the native aorta. This serves two purposes: (i) it increases the compliance of the circuit thereby reducing the afterload that the heart has to overcome and (ii) it reduces the closing pressure of the aortic valve thus avoiding its exposure to excess mechanical stress. Beyond t ...
of heart failure - Academy of Medicine of Malaysia
... cardiology particularly in the field of cardiac failure. As such, the Ministry of Health together with the Academy of Medicine and the National Heart Association of Malaysia decided to form a committee to draw up Clinical Practice Guidelines on the Management of Heart Failure. The committee first me ...
... cardiology particularly in the field of cardiac failure. As such, the Ministry of Health together with the Academy of Medicine and the National Heart Association of Malaysia decided to form a committee to draw up Clinical Practice Guidelines on the Management of Heart Failure. The committee first me ...
Systolic and Diastolic Heart Failure: Differences and Similarities Review Articles
... and geometry with a greater increase in transverse than in long axis, and mechanical dyssynchrony with or without electrical dyssynchrony occur in a substantial number of patients.35 In DHF, the cavity size remains unchanged or may even decrease, and the end-diastolic and end-systolic volumes remain ...
... and geometry with a greater increase in transverse than in long axis, and mechanical dyssynchrony with or without electrical dyssynchrony occur in a substantial number of patients.35 In DHF, the cavity size remains unchanged or may even decrease, and the end-diastolic and end-systolic volumes remain ...
What you need to know by heart
... • Pick a quiet time when you are not stressed. • Avoid having sex after a meal. • Avoid positions where you need to support your weight with ...
... • Pick a quiet time when you are not stressed. • Avoid having sex after a meal. • Avoid positions where you need to support your weight with ...
Electrocardiography - Tehran Arrhythmia Center
... The P waves in lead II are notched and in lead V1 they have a deep and wide negative component. Tehran Arrhythmia Center ...
... The P waves in lead II are notched and in lead V1 they have a deep and wide negative component. Tehran Arrhythmia Center ...
Diagnosis and Management of Diastolic Dysfunction and Heart Failure
... tion for use in clinical practice is: a condition that includes classic CHF findings and abnormal diastolic and normal systolic function at rest.8,9 A study group7 proposed that physicians combine clinical and echocardiographic information to categorize patients with diastolic heart failure accordin ...
... tion for use in clinical practice is: a condition that includes classic CHF findings and abnormal diastolic and normal systolic function at rest.8,9 A study group7 proposed that physicians combine clinical and echocardiographic information to categorize patients with diastolic heart failure accordin ...
Comparative histological structure of the sinus node in mammals
... of P cells to transitional cells in the sinus node is exceptionally high (Figure 4). The primary pacemaker, i.e. the group of pacemaker cells discharging the sinus node, comprises less than 1000 cells in the guinea pig and about 5000 cells in the rabbit. The action potential of the leading cells has ...
... of P cells to transitional cells in the sinus node is exceptionally high (Figure 4). The primary pacemaker, i.e. the group of pacemaker cells discharging the sinus node, comprises less than 1000 cells in the guinea pig and about 5000 cells in the rabbit. The action potential of the leading cells has ...
Cardiac applications of optogenetics
... contribution of the ChR2 current during an action potential e data not available in the published neuroscience or cardiac optogenetics literature. Since ChR2 current (IChR2) is both light- and voltagesensitive, its contribution during a dynamically changing membrane voltage is not trivial, and cardi ...
... contribution of the ChR2 current during an action potential e data not available in the published neuroscience or cardiac optogenetics literature. Since ChR2 current (IChR2) is both light- and voltagesensitive, its contribution during a dynamically changing membrane voltage is not trivial, and cardi ...