Pathogenesis of ventricular hypertrophy
... been thought to be the systolic force or tension generated by the myocardial fibers (28). The relations among left ventricular wall tension, intracavitary pressure and heart size can be expressed by the law of Laplace. Assuming that the ventricle is a thin-walled sphere, wall tension (T w) is propor ...
... been thought to be the systolic force or tension generated by the myocardial fibers (28). The relations among left ventricular wall tension, intracavitary pressure and heart size can be expressed by the law of Laplace. Assuming that the ventricle is a thin-walled sphere, wall tension (T w) is propor ...
... ABSTRACT: Systemic opiates may relieve dyspnoea and improve exercise tolerance in patients with chronic obstructive pulmonary disease (COPD). Small doses of inhaled opiates may have similar effects; however, recent studies have shown no benefit. We studied higher doses of inhaled morphine and measur ...
Acute mitral regurgitation in pregnancy due to ruptured chordae
... Rupture of chordae tendineae resulting in acute mitral regurgitation has previously been described following rheumatic fever, subacute bacterial endocarditis, blunt chest trauma, and in Marfan's syndrome. Chordae may rupture spontaneously in older patients, producing a characteristic clinical syndro ...
... Rupture of chordae tendineae resulting in acute mitral regurgitation has previously been described following rheumatic fever, subacute bacterial endocarditis, blunt chest trauma, and in Marfan's syndrome. Chordae may rupture spontaneously in older patients, producing a characteristic clinical syndro ...
Acute rosiglitazone treatment is cardioprotective against - AJP
... 2011; doi:10.1152/ajpheart.00137.2011.—Rosiglitazone (RGZ), a peroxisome proliferator-activated receptor (PPAR)-␥ agonist, has been demonstrated to possess cardioprotective properties during ischemia-reperfusion. However, this notion remains controversial as recent evidence has suggested an increase ...
... 2011; doi:10.1152/ajpheart.00137.2011.—Rosiglitazone (RGZ), a peroxisome proliferator-activated receptor (PPAR)-␥ agonist, has been demonstrated to possess cardioprotective properties during ischemia-reperfusion. However, this notion remains controversial as recent evidence has suggested an increase ...
Quantitative Imaging of Diastolic Function using Cardiac Magnetic
... Left ventricular deformation during isovolumic relaxation was studied to reveal that measured changes in left ventricular volume during this interval reflect changes in myocardial strain and are balanced by the inward bowing of the mitral valve leaflets which maintains the isovolumic condition. Next ...
... Left ventricular deformation during isovolumic relaxation was studied to reveal that measured changes in left ventricular volume during this interval reflect changes in myocardial strain and are balanced by the inward bowing of the mitral valve leaflets which maintains the isovolumic condition. Next ...
Modeling the Link between Left Ventricular Flow and
... medical devices such as heart valves, ventricular assist devices, and vascular grafts [3,4]. These models yield insight into the relationship of flow patterns with thrombus formation and growth, but are computationally expensive and often require data that are not available on a patient-by-patient b ...
... medical devices such as heart valves, ventricular assist devices, and vascular grafts [3,4]. These models yield insight into the relationship of flow patterns with thrombus formation and growth, but are computationally expensive and often require data that are not available on a patient-by-patient b ...
Clinical Differentiation Between Physiological Remodeling and
... BACKGROUND Physiological cardiac adaptation to regular exercise, including biventricular dilation and T-wave inversion (TWI), may create diagnostic overlap with arrhythmogenic right ventricular cardiomyopathy (ARVC). OBJECTIVES The goal of this study was to assess the accuracy of diagnostic criteria ...
... BACKGROUND Physiological cardiac adaptation to regular exercise, including biventricular dilation and T-wave inversion (TWI), may create diagnostic overlap with arrhythmogenic right ventricular cardiomyopathy (ARVC). OBJECTIVES The goal of this study was to assess the accuracy of diagnostic criteria ...
Relation Between Shock-Related Myocardial Injury and
... been reported in several studies.8-16 Extensive studies performed in cultured chick embryo myocardial cells have shown that not only defibrillation efficacy but also adverse effects such as postcountershock mechanical dysfunction and arrhythmias depend largely on the waveforms used.14'16-19 This rel ...
... been reported in several studies.8-16 Extensive studies performed in cultured chick embryo myocardial cells have shown that not only defibrillation efficacy but also adverse effects such as postcountershock mechanical dysfunction and arrhythmias depend largely on the waveforms used.14'16-19 This rel ...
An Analysis of the Mechanical Disadvantage of Myocardial Infarction
... For the case of ho/Ro = 0.81, kp = 16, the membrane model overestimates the stiffness of the ventricle. In fact, when the curves are compared numerically by least-squares fitting, it is found that the pressure predicted by the membrane model must be multiplied by 0.253 in order to be consistent with ...
... For the case of ho/Ro = 0.81, kp = 16, the membrane model overestimates the stiffness of the ventricle. In fact, when the curves are compared numerically by least-squares fitting, it is found that the pressure predicted by the membrane model must be multiplied by 0.253 in order to be consistent with ...
PhD thesis
... Besides multicenter randomized clinical trials, multi- and single-center registries are also important sources for providing real-world information on CRT. It is well-known, that patients with NYHA class IV and inotropes, those with severe renal dysfunction, or on dialysis, those who are having coe ...
... Besides multicenter randomized clinical trials, multi- and single-center registries are also important sources for providing real-world information on CRT. It is well-known, that patients with NYHA class IV and inotropes, those with severe renal dysfunction, or on dialysis, those who are having coe ...
Lactate Threshold (LT)
... The HRDP can be identified by a visual inspection of a heart rate (HR) vs. intensity plot. However, in some individuals, it is not possible to determine the HRDP by this method alone (21). Kara et al. (13), proposed the Dmax method to identify the HRDP. They showed that the HRDP is generally found a ...
... The HRDP can be identified by a visual inspection of a heart rate (HR) vs. intensity plot. However, in some individuals, it is not possible to determine the HRDP by this method alone (21). Kara et al. (13), proposed the Dmax method to identify the HRDP. They showed that the HRDP is generally found a ...
Right Ventricular Dilatation on Bedside Echocardiography
... (moderate to high pretest probability) or confirmed pulmonary embolism. Participants had bedside echocardiography evaluating for right ventricular dilatation (defined as right ventricular to left ventricular ratio greater than 1:1) and right ventricular dysfunction (right ventricular hypokinesis, para ...
... (moderate to high pretest probability) or confirmed pulmonary embolism. Participants had bedside echocardiography evaluating for right ventricular dilatation (defined as right ventricular to left ventricular ratio greater than 1:1) and right ventricular dysfunction (right ventricular hypokinesis, para ...
Delaying shock for cardiopulmonary resuscitation
... Cardiac arrest Looking at the pathophysiology of no-flow cardiac arrest gives some answers as to why VF shocked after 2–3 minutes responds much better than VF shocked at 7–8 minutes. VF and cardiac arrest are much more than just electrical phenomena. The mechanical, metabolic, and electrical deterio ...
... Cardiac arrest Looking at the pathophysiology of no-flow cardiac arrest gives some answers as to why VF shocked after 2–3 minutes responds much better than VF shocked at 7–8 minutes. VF and cardiac arrest are much more than just electrical phenomena. The mechanical, metabolic, and electrical deterio ...
Relationship between 24- hour Holter variables, chest discomfort
... coexistent AF.16 The logistic regression analysis has therefore identified AF having the lowest odd of association with syncope (OR = 0.25; 95 % CI : 0.08 - 0.8: p < 0.05). Heart rate profiles, supraventricular and ventricular extra beats in excess of 1000/24 hour had no significant association with ...
... coexistent AF.16 The logistic regression analysis has therefore identified AF having the lowest odd of association with syncope (OR = 0.25; 95 % CI : 0.08 - 0.8: p < 0.05). Heart rate profiles, supraventricular and ventricular extra beats in excess of 1000/24 hour had no significant association with ...
Late Persistent Hiccups After Pulmonary Vein Isolation: A Case Report
... Ten days later, the patient encountered devastating non-stop hiccups persisting even during deep sleep. The patient lost five kilograms of his weight in six days, and the hiccups were refractory to usual medications including chlorpromazine, gabapentin, baclofen and haloperidol. No corticosteroid th ...
... Ten days later, the patient encountered devastating non-stop hiccups persisting even during deep sleep. The patient lost five kilograms of his weight in six days, and the hiccups were refractory to usual medications including chlorpromazine, gabapentin, baclofen and haloperidol. No corticosteroid th ...
... standardized in accordance with the manufacturers' recommendations. The patients were trained in the correct usage of both inhalers. Training was repeated on the morning of each study day and inhalations were supervised by trained technicians or nurses. Turbuhaler and pMDI were connected one by one ...
supplement
... Figure S3: Optical layout of the microscope with spectra for illumination of NpHR and ChR2 and detection of Kaede and transmission light. (A) The fluorescence from the sample and the transmitted light are imaged onto two cameras, CCD1 (green channel) and CCD2 (red channel). DMD stimulation patterns ...
... Figure S3: Optical layout of the microscope with spectra for illumination of NpHR and ChR2 and detection of Kaede and transmission light. (A) The fluorescence from the sample and the transmitted light are imaged onto two cameras, CCD1 (green channel) and CCD2 (red channel). DMD stimulation patterns ...
Left Ventricular Performance Assessed by
... present demonstrated a reduced ejection fraction by the isotope method and a normal ejection fraction by the echo method (fig. 3). In 23 of these 27 studies the wall motion abnormality involved the anterolateral left ventricular surface, in two the lateral, in one the anterior, and in another the ap ...
... present demonstrated a reduced ejection fraction by the isotope method and a normal ejection fraction by the echo method (fig. 3). In 23 of these 27 studies the wall motion abnormality involved the anterolateral left ventricular surface, in two the lateral, in one the anterior, and in another the ap ...
Optimal pacing strategies for coming off CPB
... Doppler imaging. xiv,xv Several reports have also shown improvements in ventricular function in cardiac surgical patients following BiV pacing (pacing leads on the RV and LV)1,2. In the majority of patients with reduced LV function, temporary biventricular pacing improved CO and arterial blood press ...
... Doppler imaging. xiv,xv Several reports have also shown improvements in ventricular function in cardiac surgical patients following BiV pacing (pacing leads on the RV and LV)1,2. In the majority of patients with reduced LV function, temporary biventricular pacing improved CO and arterial blood press ...
cpr + aed programme - Singapore General Hospital
... This procedure can frequently re-start the heart if carried out early. Studies have shown that early defibrillation is most likely to improve survival rates for out-ofhospital cardiac arrest patients. Every emergency vehicle transporting cardiac arrest patients should be equipped with a defibrillato ...
... This procedure can frequently re-start the heart if carried out early. Studies have shown that early defibrillation is most likely to improve survival rates for out-ofhospital cardiac arrest patients. Every emergency vehicle transporting cardiac arrest patients should be equipped with a defibrillato ...
PATENT DUCTUS ARTERIOSUS (PDA)
... baby’s bedside. An echocardiogram can also diagnose problems with the formation of the heart that could cause a heart murmur. ...
... baby’s bedside. An echocardiogram can also diagnose problems with the formation of the heart that could cause a heart murmur. ...
PowerPoint プレゼンテーション - 埼玉医科大学総合医療センター 内分泌
... Figure 4. Protein Analyses. Panel A shows the results of Western blot analysis of glycogenin-1 in skeletal muscle from a normal control, a patient with glycogen storage disease (Pompe’s disease due to alphaglucosidase deficiency), a patient with a lack of glycogen due to glycogen synthase deficien ...
... Figure 4. Protein Analyses. Panel A shows the results of Western blot analysis of glycogenin-1 in skeletal muscle from a normal control, a patient with glycogen storage disease (Pompe’s disease due to alphaglucosidase deficiency), a patient with a lack of glycogen due to glycogen synthase deficien ...
The intramyocardial left anterior descending artery
... of its course, locating the vessel can be very challenging and can translate into extended bypass time and a prolonged ischaemic interval during surgery.[30] In our series various surgical techniques were used to address this anatomical entity. The surgical strategy evolved over the period of this r ...
... of its course, locating the vessel can be very challenging and can translate into extended bypass time and a prolonged ischaemic interval during surgery.[30] In our series various surgical techniques were used to address this anatomical entity. The surgical strategy evolved over the period of this r ...
Atrial Fibrillation Management: 2005
... Atrial Fibrillation: Magnitude of the Problem • 15-30% of all strokes from atrial fibrillation • Heart failure risk increased with atrial fibrillation • 2.5x mortality increase with atrial fibrillation (Framingham data) • 1 in 4 people age 40 will develop Afib • No effective or safe medications for ...
... Atrial Fibrillation: Magnitude of the Problem • 15-30% of all strokes from atrial fibrillation • Heart failure risk increased with atrial fibrillation • 2.5x mortality increase with atrial fibrillation (Framingham data) • 1 in 4 people age 40 will develop Afib • No effective or safe medications for ...