Inherited cardiac arrhythmia syndromes: What have they taught us
... potential the HERG K+ channels open (O) slowly but inactivate (I) rapidly; therefore passing little current (similar to that shown in B). As the voltage decreases the channels recover from inactivation thereby passing more current; the increase in outward current peaks at about –40 mV. The current t ...
... potential the HERG K+ channels open (O) slowly but inactivate (I) rapidly; therefore passing little current (similar to that shown in B). As the voltage decreases the channels recover from inactivation thereby passing more current; the increase in outward current peaks at about –40 mV. The current t ...
Right ventricular dysfunction in patients with idiopathic dilated
... (17.6%) died in our cohort: 10 in group 1 (30%) and 14 in group 2 (14%). The cause of death was cardiac-related for 20 patients (eight in group 1; 12 in group 2); the four other deaths were the result of cancer or septic shock. Fortynine patients (36%) presented MACE, consisting of 20 cardiac deaths ...
... (17.6%) died in our cohort: 10 in group 1 (30%) and 14 in group 2 (14%). The cause of death was cardiac-related for 20 patients (eight in group 1; 12 in group 2); the four other deaths were the result of cancer or septic shock. Fortynine patients (36%) presented MACE, consisting of 20 cardiac deaths ...
Impaired myocardial deformation in psoriatic arthritis patients
... a 1.3-fold higher rate of CVD-related death among PsA patients compared to control group2. In another study with prospective follow-up, psoriasis was identified as a potential independent risk factor for myocardial infarction based on a comparison between psoriatic and non-psoriatic patients who had ...
... a 1.3-fold higher rate of CVD-related death among PsA patients compared to control group2. In another study with prospective follow-up, psoriasis was identified as a potential independent risk factor for myocardial infarction based on a comparison between psoriatic and non-psoriatic patients who had ...
Extreme respiratory sinus arrhythmia enables overwintering black bear
... rates, and electromyograms. Respiratory cycles were identified by modulations of the QRS amplitudes (Fig. 2) [15, 25]. Notched T-waves can be seen in Fig. 2 for bears 1 and 3. This morphology has been associated with long QT syndrome and with voltage gradients between myocardial layers; however, the ...
... rates, and electromyograms. Respiratory cycles were identified by modulations of the QRS amplitudes (Fig. 2) [15, 25]. Notched T-waves can be seen in Fig. 2 for bears 1 and 3. This morphology has been associated with long QT syndrome and with voltage gradients between myocardial layers; however, the ...
CARDIOVASCULAR SYSTEM TUMORS
... • can occur in any part of the heart (with a preference for right-sided chambers) • hemangioma or lymphangioma. • Hemangiomas are red, hemorrhagic, sessile, or polypoid subendocardial nodules that vary from small to large and occasionally have been associated with hemorrhagic cardiac tamponade. • Th ...
... • can occur in any part of the heart (with a preference for right-sided chambers) • hemangioma or lymphangioma. • Hemangiomas are red, hemorrhagic, sessile, or polypoid subendocardial nodules that vary from small to large and occasionally have been associated with hemorrhagic cardiac tamponade. • Th ...
slides
... Parisian registry data on 695 resuscitated patients who had an emergent coronary angiogram, 2004-2013. ...
... Parisian registry data on 695 resuscitated patients who had an emergent coronary angiogram, 2004-2013. ...
PDF
... overlap and are in close proximity to each other. This configuration is known as the actomyosin complex. These bands cause the striations of skeletal and cardiac muscle. The band indicated by A is the complete length ofeach section of myosin. The space between consecutive myosin bands is called the ...
... overlap and are in close proximity to each other. This configuration is known as the actomyosin complex. These bands cause the striations of skeletal and cardiac muscle. The band indicated by A is the complete length ofeach section of myosin. The space between consecutive myosin bands is called the ...
Myocardial High Energy Phosphate Stores in Cardiac Hypertrophy
... ventricular tissue obtained from normal animals or animals with right ventricular hypertrophy (RVH) (Fig. 1). On the other hand, the concentrations of both total creatine and CP were significantly reduced; the total creatine averaged 15.5±0.6 (SEM), 12.5± 0.9 and 9.7 ±0.6 /nmoles/g respectively in t ...
... ventricular tissue obtained from normal animals or animals with right ventricular hypertrophy (RVH) (Fig. 1). On the other hand, the concentrations of both total creatine and CP were significantly reduced; the total creatine averaged 15.5±0.6 (SEM), 12.5± 0.9 and 9.7 ±0.6 /nmoles/g respectively in t ...
Circulatory System
... The Heart: Valves • Allow blood to flow in only one direction • Four valves – Atrioventricular valves – between atria and ventricles • Bicuspid valve (left) • Tricuspid valve (right) – Semilunar valves between ventricle and artery ...
... The Heart: Valves • Allow blood to flow in only one direction • Four valves – Atrioventricular valves – between atria and ventricles • Bicuspid valve (left) • Tricuspid valve (right) – Semilunar valves between ventricle and artery ...
ethical and medical considerations in heart transplantation in children
... Malignant arrhythmia or survivors of heart arrest, who do not respond well to drug treatment, ablation or the implanting of a cardiac defibrillator. ...
... Malignant arrhythmia or survivors of heart arrest, who do not respond well to drug treatment, ablation or the implanting of a cardiac defibrillator. ...
Experience the Benefits of Myoview
... kg-1/37 MBq-hr (0.8 R/mCi-hr) at 1 cm. The first half-value thickness of lead (Pb) for technetium Tc99m is 0.2 mm. A range of values for the relative attenuation of the radiation emitted by this radionuclide that results from the interposition of various thicknesses of Pb is shown in Table 2. For ex ...
... kg-1/37 MBq-hr (0.8 R/mCi-hr) at 1 cm. The first half-value thickness of lead (Pb) for technetium Tc99m is 0.2 mm. A range of values for the relative attenuation of the radiation emitted by this radionuclide that results from the interposition of various thicknesses of Pb is shown in Table 2. For ex ...
Computer Simulation of Bundle Branch re
... stimuli (S2) the preferred retrograde route of impulse propagation was through the left bundle branches. In addition the increment of S2H2 conduction time between premature stimulus (Sa) and E s bundle (€I2) tended to have a linear pattern in relationship to decreasing SIS2 coupling intervals simila ...
... stimuli (S2) the preferred retrograde route of impulse propagation was through the left bundle branches. In addition the increment of S2H2 conduction time between premature stimulus (Sa) and E s bundle (€I2) tended to have a linear pattern in relationship to decreasing SIS2 coupling intervals simila ...
Ventricular Assist Devices
... • New York Heart Association (NYHA) class IV* heart failure for at least 60 days d. CPXT results (criteria #3c) may be waived for those patients who are inotrope dependent and were too ill to perform CPXT prior to initiation of inotropes. *NYHA Class III = marked limitation of physical activity; les ...
... • New York Heart Association (NYHA) class IV* heart failure for at least 60 days d. CPXT results (criteria #3c) may be waived for those patients who are inotrope dependent and were too ill to perform CPXT prior to initiation of inotropes. *NYHA Class III = marked limitation of physical activity; les ...
Clinical Events in Coronary Patients Who Report Low Distress
... nonfatal MI. The secondary endpoint was cardiac mortality or nonfatal MI. As described previously (Denollet et al., 1996, 2000), mortality/MI data were derived from hospital records and the patient’s attending physician was involved in the classification of cause of death. The follow-up interval var ...
... nonfatal MI. The secondary endpoint was cardiac mortality or nonfatal MI. As described previously (Denollet et al., 1996, 2000), mortality/MI data were derived from hospital records and the patient’s attending physician was involved in the classification of cause of death. The follow-up interval var ...
Right Ventricular Pacing for Right Ventricular Outflow Tract Obstruction
... dioverter-defibrillator was implanted for the primary prevention of sudden cardiac death. An atrial lead was also implanted to accommodate any future need for atrioventricular synchronous pacing. Transthoracic echocardiography was performed to evaluate the effect of RV pacing on the RVOT gradient. T ...
... dioverter-defibrillator was implanted for the primary prevention of sudden cardiac death. An atrial lead was also implanted to accommodate any future need for atrioventricular synchronous pacing. Transthoracic echocardiography was performed to evaluate the effect of RV pacing on the RVOT gradient. T ...
Atrial and Ventricular Septal Defects
... Sinus venosus defects - high septum Ostium primum defects - low septum Secundum is most common. Primum defects are usually associated with other congenital heart lesions and have a poorer prognosis than the secundum or sinus venosus type defects. In general, the smaller the hole, the better the ...
... Sinus venosus defects - high septum Ostium primum defects - low septum Secundum is most common. Primum defects are usually associated with other congenital heart lesions and have a poorer prognosis than the secundum or sinus venosus type defects. In general, the smaller the hole, the better the ...
Clinical cardiac electrophysiology
... NASPExAM examination or its successor examination within the past 10 years and have completed an HRS-sponsored or -endorsed didactic course about ICDs and CRTs. In addition, the nonelectrophysiologist who is already experienced in pacemaker implantation and who wishes to independently implant prophy ...
... NASPExAM examination or its successor examination within the past 10 years and have completed an HRS-sponsored or -endorsed didactic course about ICDs and CRTs. In addition, the nonelectrophysiologist who is already experienced in pacemaker implantation and who wishes to independently implant prophy ...
- Hart Welfare Society
... Involving an abnormal special arrangement of any of the primary blood vessels: superior and/or inferior vena cavae (SVC, IVC), pulmonary artery, pulmonary veins, and aorta. ...
... Involving an abnormal special arrangement of any of the primary blood vessels: superior and/or inferior vena cavae (SVC, IVC), pulmonary artery, pulmonary veins, and aorta. ...
Ventricular diastole- Form and Function
... How How the the Heart Heart Works:( Works:(constant constantvolume volume)) Constant-Volume Attribute of the Four-Chambered Heart Via MRI - how are images analyzed? (with Bowman, Caruthers, Watkins) ...
... How How the the Heart Heart Works:( Works:(constant constantvolume volume)) Constant-Volume Attribute of the Four-Chambered Heart Via MRI - how are images analyzed? (with Bowman, Caruthers, Watkins) ...
Minimally invasive cardiac output monitors
... and minimum stroke volumes over the respiratory cycle and is caused by changes in preload with alterations in intra-thoracic pressure. SVV can be used as an indicator of fluid responsiveness.1 In general, patients with an SVV of ,10% are unlikely to be fluid responsive whereas those with an SVV of 1 ...
... and minimum stroke volumes over the respiratory cycle and is caused by changes in preload with alterations in intra-thoracic pressure. SVV can be used as an indicator of fluid responsiveness.1 In general, patients with an SVV of ,10% are unlikely to be fluid responsive whereas those with an SVV of 1 ...
Assessment of Left Ventricular Function in Juvenile Rheumatoid
... patient. Isovolumic relaxation time was found to be significantly higher in JRA patient as compared to the control group. These results were in agreement with that of Koka et al. [7]. It is reported that Inflammatory and cellular myocardial fibrotic process happens in JRA 1151. Moreover, Bergfeldt a ...
... patient. Isovolumic relaxation time was found to be significantly higher in JRA patient as compared to the control group. These results were in agreement with that of Koka et al. [7]. It is reported that Inflammatory and cellular myocardial fibrotic process happens in JRA 1151. Moreover, Bergfeldt a ...
THE EFFECTIVITY OF CAPTOPRIL, LOSARTAN, AND AMLODIPINE ON HYPERTENSION IN... MODEL OF GENTAMICIN-INDUCED RENAL FAILURE
... group were higher when they were compared to negative controls. These meant that the kidney were damaged. Losartan group showed smaller value of index kidney than other induced groups. It suggested that losartan had a renoprotective effect because it would inhibit inflammatory cell by inhibiting leu ...
... group were higher when they were compared to negative controls. These meant that the kidney were damaged. Losartan group showed smaller value of index kidney than other induced groups. It suggested that losartan had a renoprotective effect because it would inhibit inflammatory cell by inhibiting leu ...
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.