How to differentiate athlete`s heart from pathological
... phase, when heart failure and systolic dysfunction are present (27). Left ventricular mass and, particularly, left ventricular mass index should be always calculated when we assess the athlete’s heart. The upper limit of physiological hypertrophy is considered to be of 500 g (28). However, when appr ...
... phase, when heart failure and systolic dysfunction are present (27). Left ventricular mass and, particularly, left ventricular mass index should be always calculated when we assess the athlete’s heart. The upper limit of physiological hypertrophy is considered to be of 500 g (28). However, when appr ...
UNIVERSITY OF MALTA
... Using the whole-cell patch-clamp technique under voltage-clamp, IAB (evoked by voltage steps or ramps) was found to be time-independent, outwardly rectifying and highly permeable to NO3-, with a relative permeability sequence of NO3->I->Cl-. Further studies showed that IAB was insensitive to PKA and ...
... Using the whole-cell patch-clamp technique under voltage-clamp, IAB (evoked by voltage steps or ramps) was found to be time-independent, outwardly rectifying and highly permeable to NO3-, with a relative permeability sequence of NO3->I->Cl-. Further studies showed that IAB was insensitive to PKA and ...
Thermodilution technique to estimate cardiac output to estimate
... ¾ Consequently, we recommend that limits of agreement between the new and the reference technique of up to 30% be accepted. ...
... ¾ Consequently, we recommend that limits of agreement between the new and the reference technique of up to 30% be accepted. ...
Medical Gross Anatomy - University of Michigan
... The sympathetic innervation of the heart originates from the thoracic portion (T1-T4 or T5) of the spinal cord. These presynaptic fibers first travel to either the cervical (superior, middle or inferior) or the thoracic ganglia of the sympathetic chain, where they synapse. The postsynaptic fibers em ...
... The sympathetic innervation of the heart originates from the thoracic portion (T1-T4 or T5) of the spinal cord. These presynaptic fibers first travel to either the cervical (superior, middle or inferior) or the thoracic ganglia of the sympathetic chain, where they synapse. The postsynaptic fibers em ...
Heart 2016 – Deactivation of Devices
... With increasing frequency, questions arise about possible deactivation of some of these devices as part of end-of-life care when the continued operation of some devices may be of more burden than benefit to people.1–4 With increasing frequency also, healthcare professionals caring for such people are ...
... With increasing frequency, questions arise about possible deactivation of some of these devices as part of end-of-life care when the continued operation of some devices may be of more burden than benefit to people.1–4 With increasing frequency also, healthcare professionals caring for such people are ...
- Wiley Online Library
... newly diagnosed HF as high as 50%2 and 10-year survival of 26.7%.3 Effective management of HF depends on an accurate and rapid diagnosis. Currently, this requires assessment of symptoms and physical signs in combination with advanced and expensive imaging of cardiac structure and function. Symptom-b ...
... newly diagnosed HF as high as 50%2 and 10-year survival of 26.7%.3 Effective management of HF depends on an accurate and rapid diagnosis. Currently, this requires assessment of symptoms and physical signs in combination with advanced and expensive imaging of cardiac structure and function. Symptom-b ...
Normalization of the EKG in patients with right bundle branch block
... 35, BUN was 16,Creatinin was 0.9, blood glucose was 112 with normal electrolytes count (Na was 142, K was 4.4 , total Ca was 2.4, Chloride was 98 and Mg was 1.7). Echocardiography examination concluded normal systolic function with ejection fraction was 57%, diastolic dysfunction ,with septal to lat ...
... 35, BUN was 16,Creatinin was 0.9, blood glucose was 112 with normal electrolytes count (Na was 142, K was 4.4 , total Ca was 2.4, Chloride was 98 and Mg was 1.7). Echocardiography examination concluded normal systolic function with ejection fraction was 57%, diastolic dysfunction ,with septal to lat ...
Atherosclerotic Heart Disease, Conduction Disturbances, and
... Controversial designation; heterogeneous cohort due to subtle subclinical pathology and genetics. Generally favorable mortality risk relative to normal Primary mortality risk is stroke, beginning at age 55 and increasing over time Risk increases if left atrial volume exceeds 32ml/m2 About a third ar ...
... Controversial designation; heterogeneous cohort due to subtle subclinical pathology and genetics. Generally favorable mortality risk relative to normal Primary mortality risk is stroke, beginning at age 55 and increasing over time Risk increases if left atrial volume exceeds 32ml/m2 About a third ar ...
Surgical Repair of A Ruptured Aneurysm of Sinus of Valsalva
... failure for which treatment had been commenced in another centre. In the previous center inotropic support had also been given. He was referred to our hospital for surgery following transthoracic echocardiogram (TTE) which revealed severe AI, a dubious VSD and pulmonary hypertension. Following admis ...
... failure for which treatment had been commenced in another centre. In the previous center inotropic support had also been given. He was referred to our hospital for surgery following transthoracic echocardiogram (TTE) which revealed severe AI, a dubious VSD and pulmonary hypertension. Following admis ...
File - Developing Anaesthesia
... and +120 degrees. The electrical axis of the heart can be determined by a number of different ways. The 2 commonest are presented below: Axis at a glance For examples of axis determination see appendix 3 below. It should be remembered that: The deflection will be greatest when the axis is in the sam ...
... and +120 degrees. The electrical axis of the heart can be determined by a number of different ways. The 2 commonest are presented below: Axis at a glance For examples of axis determination see appendix 3 below. It should be remembered that: The deflection will be greatest when the axis is in the sam ...
Perioperative assessment of left ventricular function in patients with
... not adequately balanced by the Frank-Starling mechanism because of reduced LV diastolic filling. JM Dubroff et al 11 in 1983, found a pre-operative mean EF of 48% in MS patients in their study. In a study conducted by MH Crawford, J Souchek et al 10 in 1990, the mean preoperative EF in MS patients w ...
... not adequately balanced by the Frank-Starling mechanism because of reduced LV diastolic filling. JM Dubroff et al 11 in 1983, found a pre-operative mean EF of 48% in MS patients in their study. In a study conducted by MH Crawford, J Souchek et al 10 in 1990, the mean preoperative EF in MS patients w ...
Sympathetic nervous system and muscle: A two way interaction in
... relative contribution of each mechanism in different phases of exercise. In order to elucidate this issue, a series of experiments were performed recently in this laboratory25. In this report, renal vascular resistance (RVR) (assessed by Doppler measured renal flow velocity and by beat to beat measu ...
... relative contribution of each mechanism in different phases of exercise. In order to elucidate this issue, a series of experiments were performed recently in this laboratory25. In this report, renal vascular resistance (RVR) (assessed by Doppler measured renal flow velocity and by beat to beat measu ...
The rationale of using calcium antagonists in the treatment of
... more than two decades in the treatment of coronary heart disease. Their use was initially promoted for variant angina, but soon expanded to all forms of coronary heart disease entailing stable and unstable angina. On the basis of promising experimental findings, these drugs were also given in the tr ...
... more than two decades in the treatment of coronary heart disease. Their use was initially promoted for variant angina, but soon expanded to all forms of coronary heart disease entailing stable and unstable angina. On the basis of promising experimental findings, these drugs were also given in the tr ...
Validation of fourier amplitude ratio to quantitate valvular
... ventricular amplitude ratio can reliably separate normal subjects from those with severe valvular insufficiency and that the interobserver variability with this technique is low (9). This technique is based on the premise that first harmonic Fourier analysis of a gated blood pool study generates an ...
... ventricular amplitude ratio can reliably separate normal subjects from those with severe valvular insufficiency and that the interobserver variability with this technique is low (9). This technique is based on the premise that first harmonic Fourier analysis of a gated blood pool study generates an ...
Chronic heart failure
... Ensure the patient is stable and does not have a condition or device that would preclude an exercise-based rehabilitation programme14. Include a psychological and educational component in the programme. The programme may be incorporated within an existing cardiac rehabilitation programme. [new 2010] ...
... Ensure the patient is stable and does not have a condition or device that would preclude an exercise-based rehabilitation programme14. Include a psychological and educational component in the programme. The programme may be incorporated within an existing cardiac rehabilitation programme. [new 2010] ...
Slide 1 - Annals of Internal Medicine
... intervals gradually increase until the pause, the pause is less than twice the preceding ventricular pulse interval; and the first AV interval is shortest after the pause. These findings are consistent with type I seconddegree atrioventricular block. In addition, the intervals between the firing of ...
... intervals gradually increase until the pause, the pause is less than twice the preceding ventricular pulse interval; and the first AV interval is shortest after the pause. These findings are consistent with type I seconddegree atrioventricular block. In addition, the intervals between the firing of ...
Microsoft Word - VNU
... Electrocardiography, nowadays, is an essential part of the initial evaluation for patients presenting with cardiac complaints. However, an normal electrocardiography can not eliminate absolutely the heart disease. For example, in the case our heart rate is irregular and appears intermittently, if EC ...
... Electrocardiography, nowadays, is an essential part of the initial evaluation for patients presenting with cardiac complaints. However, an normal electrocardiography can not eliminate absolutely the heart disease. For example, in the case our heart rate is irregular and appears intermittently, if EC ...
Effects of exercise training in patients with idiopathic pulmonary arterial hypertension
... the number of capillaries per quadriceps myocyte measured in the whole section. Fibre type distribution, oxidative enzyme activity and crosssectional area Cross-sectional area (CSA), fibre type distribution and oxidative enzyme activity were determined as previously described [26, 27]. In detail, in ...
... the number of capillaries per quadriceps myocyte measured in the whole section. Fibre type distribution, oxidative enzyme activity and crosssectional area Cross-sectional area (CSA), fibre type distribution and oxidative enzyme activity were determined as previously described [26, 27]. In detail, in ...
The Impact of Fetal Echocardiography on Outcome of Patients with
... that prenatal scanning has clearly affected the choice of hospital for delivery. All infants diagnosed prenatally were born in referral centers for pediatric cardiology, compared with just 60% of those diagnosed postnatally. There are some studies that assesses the outcome for live-born infants with ...
... that prenatal scanning has clearly affected the choice of hospital for delivery. All infants diagnosed prenatally were born in referral centers for pediatric cardiology, compared with just 60% of those diagnosed postnatally. There are some studies that assesses the outcome for live-born infants with ...
Imaging and visualization of 3-D cardiac electric activity
... at the right and left ventricles. The locations of the dipoles are illustrated in Fig. 2(c) by the red color, where the green color refers to zero activity. The LWMN solution is illustrated in Fig. 2(a), where the red and yellow colors illustrate the strength of the equivalent dipole source distribu ...
... at the right and left ventricles. The locations of the dipoles are illustrated in Fig. 2(c) by the red color, where the green color refers to zero activity. The LWMN solution is illustrated in Fig. 2(a), where the red and yellow colors illustrate the strength of the equivalent dipole source distribu ...
isolated hypoplasia of the right ventricle and tricuspid valve in siblings
... Two cases of isolated right ventricular hypoplasia with normal tricuspid valves were mentioned by Cooley et al. (1950). Gasul et al. (1959) reported a case in which the differentiation between Ebstein's disease and hypoplasia of the right ventricle remained undecided despite thorough investigation a ...
... Two cases of isolated right ventricular hypoplasia with normal tricuspid valves were mentioned by Cooley et al. (1950). Gasul et al. (1959) reported a case in which the differentiation between Ebstein's disease and hypoplasia of the right ventricle remained undecided despite thorough investigation a ...
12 Lead EKG 101
... single most important element to identify on the ECG when looking for evidence of AMI. ...
... single most important element to identify on the ECG when looking for evidence of AMI. ...
VSD
... pulmonary resistance Systolic heart murmur (2-4/6°) occurs with the fall of pulmonary resistance Extension of left-to-right shunt might produce signs of congestive heart failure Heart murmur might become smaller (but 2. heart sound more pronounced) and congestive heart failure might improve if ...
... pulmonary resistance Systolic heart murmur (2-4/6°) occurs with the fall of pulmonary resistance Extension of left-to-right shunt might produce signs of congestive heart failure Heart murmur might become smaller (but 2. heart sound more pronounced) and congestive heart failure might improve if ...
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.