The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of blood ejected from a ventricle at each beat is STROKE VOLUME.
Dynamic three-dimensional echocardiography using the added dimension of time to impart the cinematic perception of motion. (Mayo Clin Proc 1993;68:221-40)
The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.
Echocardiography amplified by the addition of depth to the conventional two-dimensional ECHOCARDIOGRAPHY visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (Mayo Clin Proc 1993;68:221-40)
The hollow, muscular organ that maintains the circulation of the blood.
The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.
Striated muscle cells found in the heart. They are derived from cardiac myoblasts (MYOBLASTS, CARDIAC).
The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).
Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.
Surgery performed on the heart.
Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.
Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)

Ventricular pressure-volume curve indices change with end-diastolic pressure. (1/476)

Many indices have been proposed to describee the diastolic pressure-volume curve mathematically and permit quantification of the elastic properties of the myocardium itself in hopes that changes in the muscle caused by disease would b.e reflected in the diastolic pressure-volume curve. To date, none of the proposed indices has been shown convincingly to discriminate one group of patients from another. While this situation in part arises from the relatively large amount of noise introduced by the technical difficulties of measuring synchronous pressures and volumes during diastole in man, ther is a more fundamental difficulty. In practice, one can measure only a short segment of the entire pressure-volume curve, and the values of all diastolic pressure-volume curve parameters investigated change significantly when one uses different segments of the same pressure-volume curve to compute them. These results were derived from relatively noise-free pressure-volume curves obtained by filling nine excised dog left ventricles at a known rate and monitoring pressure-volume curve used to compute the parameter. Merely increasing measurement fidelity will not resolve this problem, because none of these parameters accurately characterizes the entire diastolic pressure-volume curbe from a segment like that which one can reasonably expect to obtain from humans.  (+info)

2,3,7,8-Tetrachlorodibenzo-p-dioxin alters cardiovascular and craniofacial development and function in sac fry of rainbow trout (Oncorhynchus mykiss). (2/476)

Hallmark signs of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) toxicity in rainbow trout sac fry, are yolk sac edema, hemorrhage, craniofacial malformation, and growth retardation culminating in mortality. Our objective was to determine the role of cardiovascular dysfunction in the development of this toxicity. An embryotoxic TCDD dose (385 pg/g egg) caused a progressive reduction in blood flow in rainbow trout sac fry manifested first and most dramatically in the 1st and 2nd branchial arches and vessels perfusing the lower jaw. Blood flow was reduced later in the infraorbital artery and occipital vein of the head as well as segmental vessels and caudal vein of the trunk. Reduced perfusion occurred last in gill branchial arteries involved with oxygen uptake and the subintestinal vein and vitelline vein involved with nutrient uptake. Although heart rate throughout sac fry development was not affected, heart size at 50 days post-fertilization (dpf) was reduced far more than body weight or length, suggesting that the progressive circulatory failure caused by TCDD is associated with reduced cardiac output. Craniofacial development was arrested near hatch, giving rise to craniofacial malformations in which the jaws and anterior nasal structures were underdeveloped. Unlike the medaka embryo, in which TCDD causes apoptosis in the medial yolk vein, endothelial cell death was not observed in rainbow trout sac fry. These findings suggest a primary role for arrested heart development and reduced perfusion of tissues with blood in the early-life stage toxicity of TCDD in trout.  (+info)

Left ventricular function in chronic renal failure. (3/476)

Left ventricular function was studied in 14 patients with end-stage chronic renal failure using non-invasive methods (echocardiography and systolic time intervals). Patients were divided into 3 groups. Group 1 consisted of 5 patients who were normotensive at the time of study and group 2 of 7 patients who were hypertensive when studied. Group 3 consisted of 2 patients: one was receiving propranolol and the other, studied 302 days after renal transplantation, was receiving digitalis for recurrent episodes of cardiac failure. All except the patient receiving propranolol had normal left ventricular function in systole with normal measurements of fractional fibre shortening (% delta S, EF) and normal measurements relating to the velocity of ventricular contraction (mean Vcf, mean velocity of posterior wall motion). Stroke volume and cardiac output were normal in some patients but were increased in patients with fluid overload. Early diastolic compliance of the left ventricle seemed to be normal except in the patient with recurrent cardiac failure. The study provided no evidence for the existence of a specific uraemic cardiomyopathy.  (+info)

Fetal pulmonary venous flow into the left atrium relative to diastolic and systolic cardiac time intervals. (4/476)

OBJECTIVE: To establish the nature and gestational age dependency of the pulmonary venous flow velocity pattern into the left atrium relative to systolic and diastolic phases of the cardiac cycle. DESIGN: This was a cross-sectional study of Doppler measurements of fetal pulmonary venous inflow velocities, which were correlated with simultaneous recordings of transmitral and aortic flow velocity waveforms based on an equal cardiac cycle length (+/- 5%). RESULTS: Successful recordings were obtained in 28 out of 60 (47%) normal singleton pregnancies at 20-36 weeks of gestation. Reproducibility of waveform analysis of the various phases of the cardiac cycle was satisfactory, within-patient variance ranging between 1.7% and 6.5%. A statistically significant increase (p < 0.05) in pulmonary venous time average velocity and velocity integral with advancing gestational age was established. A statistically significant increase (p < 0.05) of the pulmonary flow velocity integral was also found when related to each of the systolic and diastolic segments of the cardiac cycle, with the exception of isovolemic relaxation time. The duration of each of the diastolic and systolic segments of the cardiac cycle, as well as the pulmonary venous velocity integral expressed as a percentage of the cardiac cycle, remained constant with advancing gestational age. CONCLUSIONS: The second half of pregnancy is characterized by pulmonary venous inflow into the left atrium throughout the cardiac cycle. Pulmonary venous inflow into the left atrium occurs predominantly during the filling and ejection phases of the cardiac cycle. Absolute cardiac diastolic and systolic time intervals as well as the percentage distribution of pulmonary venous flow velocity integrals between these cardiac time intervals remain unchanged with advancing gestational age.  (+info)

Familial predisposition of left ventricular hypertrophy. (5/476)

OBJECTIVES: The study evaluated the contribution of familial predisposition to the risk of left ventricular hypertrophy (LVH). BACKGROUND: Left ventricular hypertrophy is a multifactorial condition that serves as an important predictor of cardiovascular mortality. At present it is unclear whether familial predisposition contributes to the manifestation of LVH. Thus, we determined whether siblings of subjects with LVH are at increased risk to present with an elevation of LV mass or an abnormal LV geometry. METHODS: Echocardiographic and anthropometric measurements were performed in 2,293 individuals who participated in the echocardiographic substudies of population-based MONICA Augsburg surveys. In addition, a total of 319 siblings of survey participants with echocardiographic evidence of LVH were evaluated. The risk of these siblings to present with LVH or abnormal LV geometry was estimated by comparison with 636 subjects matched for gender and age that were selected from the entire echocardiography study base. RESULTS: Blood pressure, body mass index, age, and gender (i.e., known determinants of LV mass) were comparable in LVH-siblings and the matched comparison group. However, septal and posterior wall thicknesses, relative wall thickness as well as LV mass index were significantly elevated in LVH-siblings (p < 0.001, each) whereas LV dimensions did not differ. Likewise, the prevalence of LVH was raised in LVH-siblings, as was the relative risk of LVH after adjustment for confounders (p < 0.05). More specifically, LVH-siblings displayed increased prevalences of concentric remodeling and concentric LVH (p < 0.05) but not of eccentric LVH. CONCLUSIONS: Familial predisposition appears to contribute to increased LV wall thickness, to the development of LV hypertrophy and abnormal LV geometry.  (+info)

Role of cardiac structural and functional abnormalities in the pathogenesis of hyperdynamic circulation and renal sodium retention in cirrhosis. (6/476)

The aim of this study was to assess the relationship between subtle cardiovascular abnormalities and abnormal sodium handling in cirrhosis. A total of 35 biopsy-proven patients with cirrhosis with or without ascites and 14 age-matched controls underwent two-dimensional echocardiography and radionuclide angiography for assessment of cardiac volumes, structural changes and systolic and diastolic functions under strict metabolic conditions of a sodium intake of 22 mmol/day. Cardiac output, systemic vascular resistance and pressure/volume relationship (an index of cardiac contractility) were calculated. Eight controls and 14 patients with non-ascitic cirrhosis underwent repeat volume measurements and the pressure/volume relationship was re-evaluated after consuming a diet containing 200 mmol of sodium/day for 7 days. Ascitic cirrhotic patients had significant reductions in (i) cardiac pre-load (end diastolic volume 106+/-9 ml; P<0.05 compared with controls), due to relatively thicker left ventricular wall and septum (P<0.05); (ii) afterload (systemic vascular resistance 992+/-84 dyn.s.cm(-5); P<0. 05 compared with controls) due to systemic arterial vasodilatation; and (iii) reversal of the pressure/volume relationship, indicating contractility dysfunction. Increased cardiac output (6.12+/-0.45 litres/min; P<0.05 compared with controls) was due to a significantly increased heart rate. Pre-ascitic cirrhotic patients had contractile dysfunction, which was accentuated when challenged with a dietary sodium load, associated with renal sodium retention (urinary sodium excretion 162+/-12 mmol/day, compared with 197+/-12 mmol/day in controls; P<0.05). Cardiac output was maintained, since the pre-load was normal or increased, despite a mild degree of ventricular thickening, indicating some diastolic dysfunction. We conclude that: (i) contractile dysfunction is present in cirrhosis and is aggravated by a sodium load; (ii) an increased pre-load in the pre-ascitic patients compensates for the cardiac dysfunction; and (iii) in ascitic patients, a reduced afterload, manifested as systemic arterial vasodilatation, compensates for a reduced pre-load and contractile dysfunction. Cirrhotic cardiomyopathy may well play a pathogenic role in the complications of cirrhosis.  (+info)

Patterns of body fat deposition in youth and their relation to left ventricular markers of adverse cardiovascular prognosis. (7/476)

The patterns of body fat deposition in healthy youth and their relation to future development of cardiovascular disease remain incompletely understood. To further evaluate these patterns, we measured indirect indexes of central and general fat deposition in healthy adolescents (mean age 15.4+/-2.3 years) with family histories of hypertension. We examined the relation between these indexes and echocardiographic markers of adverse prognosis as well as the effect of gender and ethnicity. All 225 subjects (64% black and 48% female) had > or =1 biologic parent and 1 grandparent with hypertension. Skinfold thicknesses, waist-to-hip girth ratio, Quetelet index, Ponderal index, conicity, and Z score weight - Z score height were measured. Left ventricular (LV) mass, indexed LV mass, relative wall thickness (RWT), and midwall fractional shortening (MFS) were determined using echocardiography. In both black and white subjects, the adiposity indexes were significantly correlated with posterior wall thickness, total LV mass, and indexed LV mass (p <0.05 for all). Additionally, in black subjects, central adiposity was inversely related to MFS and directly related to RWT and septal thickness. General adiposity independently predicted indexed and nonindexed LV mass, whereas central adiposity predicted MFS and RWT. Compared with subjects with normal LV geometry, those with abnormal geometry were heavier and fatter based on every index of obesity (p <0.03 for all). Thus, indexes of fat deposition are significantly correlated with LV markers of adverse prognosis in healthy youth.  (+info)

Changes in left ventricular filling and left atrial function six months after nonsurgical septal reduction therapy for hypertrophic obstructive cardiomyopathy. (8/476)

OBJECTIVES: The purpose of this study was to evaluate changes in left ventricular (LV) filling, left atrial (LA) volumes and function six months after nonsurgical septal reduction therapy (NSRT) for hypertrophic obstructive cardiomyopathy (HOCM). BACKGROUND: Patients with HOCM frequently have enlarged left atria, which predisposes them to atrial fibrillation. Nonsurgical septal reduction therapy results in significant reduction in left ventricular outflow tract (LVOT) obstruction and symptomatic improvement. However, its effect on LV passive filling volume, LA volumes and function is not yet known. METHODS: Thirty patients with HOCM underwent treadmill exercise testing as well as 2-dimensional and Doppler echocardiography before and six months after NSRT. Data included clinical status, exercise duration, LVOT gradient, mitral regurgitant (MR) volume, LV pre-A pressure and LA volumes. Left atrial ejection force and kinetic energy (KE) were computed noninvasively and were compared with 12 age-matched, normal subjects. RESULTS: New York Heart Association (NYHA) class was lower and exercise duration was longer (p < 0.05) six months after NSRT. The LVOT gradient, MR volume and LV pre-A pressure were all significantly reduced. HOCM patients had larger atria, which had a higher ejection force and KE, compared with normal subjects (p < 0.01). After NSRT, LV passive filling volume increased (p < 0.01), whereas LA volumes, ejection force and KE decreased (p < 0.01). Reduction in LA maximal volume was positively related to changes in LV pre-A pressure (r = 0.8, p < 0.05) and MR volume (0.4, p < 0.05). Changes in LA ejection force were positively related to changes in LA pre-A volume (r = 0.7, p < 0.01) and KE (r = 0.81, p < 0.01). The increase in exercise duration paralleled the increase in LV passive filling volume (r = 0.85, p < 0.05). CONCLUSIONS: Nonsurgical septal reduction therapy results in an increase in LV passive filling volume and a reduction in LA size, ejection force and KE.  (+info)

PURPOSE: To compare cardiac cine MR imaging using steady state free precession (SSFP) and fast low angle shot (FLASH) techniques at 1.5 and 3 T, and to establish their variabilities and reproducibilities for cardiac volume and mass determination in volunteers. To assess the feasibility of SSFP imaging in patients at 3 T and to determine comparability to volume data acquired at 1.5 T. MATERIALS AND METHODS: Ten healthy volunteers underwent cardiac magnetic resonance imaging using SSFP and segmented gradient-echo FLASH, using both a 1.5 and a 3 T MR system on the same day. Ten patients with impaired left ventricular (LV) function were also studied at both field strengths with SSFP. RESULTS: For both SSFP and FLASH, field strength had no effect on the quantification of LV and right ventricular (RV) volumes, mass, or function (P | or = 0.05 for field strength for all parameters). At both 1.5 and 3 T, SSFP yielded smaller LV mass (e.g., at 3 T 109 +/- 30 g vs. 142 +/- 37 g; P = 0.011) and larger LV volume (e
Dive into the research topics of Right ventricular volume measurement with single-plane Simpsons method based on a new half-circle model. Together they form a unique fingerprint. ...
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TY - JOUR. T1 - Right ventricular volume measurement by conductance catheter. AU - Danton, Mark H D. AU - Greil, Gerald F.. AU - Byrne, John G.. AU - Hsin, Michael. AU - Cohn, Lawrence. AU - Maier, Stephan E.. PY - 2003/10/1. Y1 - 2003/10/1. N2 - Continuous ventricular volume measurement by the conductance method assumes a homogeneous electrical field dispersed throughout and contained within the ventricle. Because of dense trabeculation and complex geometry, right ventricular (RV) volume description by this method may be seriously compromised. This study sought to determine the accuracy and limitations of RV volume measurement by conductance, with magnetic resonance (MR) imaging (MRI) used as a reference, in the porcine RV. Anesthetized pigs (n = 5, 45-55 kg) were placed in a 1.5-T magnet, and ECG-gated transverse MR images (5-mm slices) were acquired during the complete cardiac cycle. RV cavity volumes were subsequently determined by Simpsons technique. Animals were then instrumented with an ...
The 1.2 release of the ACUSON SC2000 volume imaging ultrasound system delivers nonstitched, real-time, full-volume imaging of the heart in one heart cycle. The system allows automatic extraction of reference planes from continuous cardiac volume imaging for measurement, analysis, and interpretation. New to the ACUSON SC2000 system is the IN Focus coherent imaging technology. Without the need to continuously set and select a given location of best focus, IN Focus technology sharpens the full-field image at all times without sacrificing frame rate. Siemens offer knowledge-based workflow applications, which are designed to automate measurements for rapid, accurate and reproducible results. syngo Velocity Vector Imaging (VVI) technology instantaneously measures motion at any point in the cardiac cycle. syngo Auto Left Heart (Auto LH) technology automatically generates left atrial and left ventricular volumes and ejection fractions rapidly and reliably. syngo Arterial Health Package (AHP) provides ...
Total deaths from heart disease, stroke, diabetes and hypertension - known collectively as cardiometabolic disease, the leading cause of preventable death worldwide - have been increasing since 2011.
Anatomic validation of a novel method for left ventricular volume and mass measurements with use of real-time 3-dimensional echocardiography.
The paper describes an experimental activity on the spatial and temporal liquid- and vapor-phase distributions of diesel fuel at engine-like conditions. The influence of the k-factor (0 and 1.5) of a single-hole axial-disposed injector (0.100 mm diameter and 10 L/d ratio) has been studied by spraying fuel in an optically-accessible constant-volume combustion vessel. A high-speed imaging system, capable of acquiring Mie-scattering and Schlieren images in a near simultaneous fashion mode along the same line of sight, has been developed at the Michigan Technological University using a high-speed camera and a pulsed-wave LED system. The time resolved pair of schlieren and Mie-scattering images identifies the instantaneous position of both the vapor and liquid phases of the fuel spray, respectively. The studies have been performed at three injection pressures (70, 120 and 180 MPa), 23.9 kg/m3 ambient gas density and 900 K gas temperature in the vessel ...
The paper describes an experimental activity on the spatial and temporal liquid- and vapor-phase distributions of diesel fuel at engine-like conditions. The influence of the k-factor (0 and 1.5) of a single-hole axial-disposed injector (0.100 mm diameter and 10 L/d ratio) has been studied by spraying fuel in an optically-accessible constant-volume combustion vessel. A high-speed imaging system, capable of acquiring Mie-scattering and Schlieren images in a near simultaneous fashion mode along the same line of sight, has been developed at the Michigan Technological University using a high-speed camera and a pulsed-wave LED system. The time resolved pair of schlieren and Mie-scattering images identifies the instantaneous position of both the vapor and liquid phases of the fuel spray, respectively. The studies have been performed at three injection pressures (70, 120 and 180 MPa), 23.9 kg/m3 ambient gas density and 900 K gas temperature in the vessel ...
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Left heart volumes were determined angiographically in 50 subjects of whom 18 had no abnormality of the left heart, 12 had lesions causing pressure overload of the left ventricle, and 20 had lesions causing volume overload of the left ventricle. The left heart volumes were in the normal range in the presence of pressure overload, but, with volume overload, end-diastolic, end-systolic, and atrial volumes were in excess of normal. A linear relationship was demonstrated between end-diastolic and end-systolic volumes, regardless of the pressure load on the ventricle. Thus, for all but one of the cases studied, total left ventricular ejection volume formed a nearly constant proportion of end-diastolic volume.. ...
Measurement of acute serial changes in left ventricular volume is often desirable. Although left ventricular volumes estimated echocardiographically correlate well with results of angiographic methods, the sensitivity with which echocardiography can detect acute alterations in volume is unknown. Accordingly, the effect on transverse left ventricular dimension of interventions known to alter left ventricular volume (tilting and administration of nitroglycerin and phenylephrine) was studied in six normal subjects. Tilting significantly reduced end-diastolic dimension (from 48 ± 1.7 to 41.8 ± 1.5 mm, P , .01) and end-systolic dimension (from 32.2 ± 0.6 to 27.5 ± 0.8 mm, P , .001). Nitroglycerin also reduced end-diastolic dimension (from 44.8 ± 2.3 to 39.8 ± 2.1 mm, P , .02) and end-systolic dimension (from 30.2 ± 1.3 to 26.5 ± 1.2, P , .005). In contrast, phenylephrine increased end-diastolic dimension (from 42.3 ± 2.6 to 45.6 ± 2.6 mm, P , .025) but did not significantly alter ...
Semantic Scholar extracted view of Abstract 260: Quantitative Evaluation of Right Ventricular Volume and Its Ejection Fraction by 320 Slice Computed Tomography Compared With Three Dimensional Echocardiogram by Maiko Takahashi et al.
TY - JOUR. T1 - Feasibility and Accuracy of Automated Software for Transthoracic Three-Dimensional Left Ventricular Volume and Function Analysis. T2 - Comparisons with Two-Dimensional Echocardiography, Three-Dimensional Transthoracic Manual Method, and Cardiac Magnetic Resonance Imaging. AU - Tamborini, Gloria. AU - Piazzese, Concetta. AU - Lang, Roberto M.. AU - Muratori, Manuela. AU - Chiorino, Elisa. AU - Mapelli, Massimo. AU - Fusini, Laura. AU - Ali, Sarah Ghulam. AU - Gripari, Paola. AU - Pontone, Gianluca. AU - Andreini, Daniele. AU - Pepi, Mauro. PY - 2017/11/1. Y1 - 2017/11/1. N2 - Background Recently, a new automated software package (HeartModel) was developed to obtain three-dimensional (3D) left ventricular (LV) volumes using a model-based algorithm (MBA) with a one-button simple system and user-adjustable slider. The aims of this study were to verify the feasibility and accuracy of the MBA in comparison with other commonly used imaging techniques in a large unselected population, ...
Total deaths from heart disease, stroke, diabetes and hypertension-known collectively as cardiometabolic disease-have been increasing since 2011, a new Northwestern Medicine study shows. Cardiometabolic disease is the ...
Sieslack AK, Dziallas P, Nolte I, et al. BMC Vet Res 2014;10:242. BackgroundRight ventricular (RV) volume and function are important diagnostic and prognostic
Experimental characterization of the burning behavior of gaseous mixtures has been carried out, analyzing spherical expanding flames. Tests were performed in the Device for Hydrogen-Air Reaction Mode Analysis (DHARMA) laboratory of Istituto Motori-CNR. Based on a high-pressure, constant-volume bomb, the activity is aimed at populating a systematic database on the burning properties of CH4, H2 and other species of interest, in conditions typical of internal combustion (i.c.) engines and gas turbines. High-speed shadowgraph is used to record the flame growth, allowing to infer the laminar burning parameters and the flame stability properties. Mixtures of CH4, H2 and air have been analyzed at initial temperature 293÷305 K, initial pressure 3÷18 bar and equivalence ratio = 1.0. The amount of H2 in the mixture was 0%, 20% and 30% (vol.). The effect of the initial pressure and of the Hydrogen content on the laminar burning velocity and the Markstein length has been evaluated: the relative weight and mutual
The relationship between R-wave amplitude and left ventricular volume was examined using two groups of patients, undergoing diagnostic cardiac catheterisation for investigation of chest pain, who had simultaneous R-wave recording and left ventricular angiography. R-wave amplitude was measured in leads 1, 2, 3 and V4-6. Left ventricular volume was altered by nitroglycerine (n = 18) and atrial pacing (n = 13). In both groups, increase or decrease in left ventricular volume was associated with a concomitant change of R-wave amplitude. We conclude that left ventricular volume is an important determinant of surface-recorded R waves with increased amplitude reflecting increased left ventricular volume and vice versa.
We report the first comparison of cardiovascular magnetic resonance imaging (CMR) at 1.5T, 3T and 7T field strengths using steady state free precession (SSFP) and fast low angle shot (FLASH) cine sequences. Cardiac volumes and mass measurements were assessed for feasibility, reproducibility and validity at each given field strength using FLASH and SSFP sequences. Ten healthy volunteers underwent retrospectively electrocardiogram (ECG) gated CMR at 1.5T, 3T and 7T using FLASH and SSFP sequences. B1 and B0 shimming and frequency scouts were used to optimise image quality. Cardiac volume and mass measurements were not significantly affected by field strength when using the same imaging sequence (P|0.05 for all parameters at 1.5T, 3T and 7T). SSFP imaging returned larger end diastolic and end systolic volumes and smaller left ventricular masses than FLASH imaging at 7T, and at the lower field strengths (P|0.05 for each parameter). However, univariate general linear model analysis with fixed effects for
Cardiac tamponade arises due to equalisation of cardiac pressures leading to impaired biventricular filling. The pericardial sack has some elasticity which is quickly reached with fluid accumulation. Cardiac volume becomes smaller during systole and venous return shifts to cardiac systole to reduce cardiac output. Normally, systemic venous return to the right side of the heart increases with inspiration and pulmonary venous return to the left heart decreases with inspiration so that systemic arterial pressure normally falls by ,10 mmHg during inspiration.. In cardiac tamponade, the rigid pericardium prevents the free wall from expanding. Thus, the distension of the right ventricle is limited to the interventricular septum and this causes the septum to bulge to the left, reducing left ventricular compliance and contributing to further decreased filling of the left ventricle during inspiration. This leads to an exaggerated drop in systolic blood pressure in inspiration called pulsus paradoxus. Our ...
Cardiovascular magnetic resonance imaging (CMR), sometimes known as cardiac MRI, is a medical imaging technology for the non-invasive assessment of the function and structure of the cardiovascular system. It is derived from and based on the same basic principles as magnetic resonance imaging (MRI) but with optimization for use in the cardiovascular system. These optimizations are principally in the use of ECG gating and rapid imaging techniques or sequences. By combining a variety of such techniques into protocols, key functional and morphological features of the cardiovascular system can be assessed. In the investigation of cardiovascular disease the physician has a wide variety of tools available. The key disadvantages of CMR are limited availability, expense, and special skills/technical training needed to perform CMR (vs other types of MRI). New volumetric acquisitions can shorten and simplify the scan as they can replace several sequences, acquiring the entire cardiac volume at once. The ...
TY - JOUR. T1 - Intracardiac echocardiographic measurement of left ventricular volume. AU - Ding, C.. AU - Rao, L.. AU - Nagueh, Sherif. AU - Khoury, D. S.. PY - 2004/12/1. Y1 - 2004/12/1. N2 - We tested the utility of intracardiac echocardiography (ICE) in measuring left ventricular (LV) volume. In 4 normal dogs, a 10-F percutaneous sheath was placed inside the LV along its major axis. An ICE catheter (9 F, 9 MHz) was then inserted through the sheath into the LV. The ICE catheter was pulled back in 1-mm intervals starting from the apex, and 2-D tomographic images were continuously acquired. Subsequently, the ICE catheter was replaced in the LV by a conductance catheter to measure single-beat volume signals. Stroke volume was determined by thermodilution for validation. All measurements were made in each dog while pacing the atrium at two different cycle lengths (range=300-500 ms). The endocardium was segmented in the ICE images throughout the cardiac cycle, and LV volume was computed by ...
The value of the end systolic volume depends on the arterial blood pressure as well as on the force of ventricular contraction. The arterial blood pressure - especially in the large arteries leaving the heart - is not only pressure outwards against the arterial walls but also back pressure against the aortic valve and the pulmonary valve exerted by the arterial blood. An increased arterial blood pressure results in higher end systolic volume because of more afterload (more resistance to the outflow of blood from the ventricles). Contractility of the ventricular muscle can increase (e.g. from increased stimulation of the heart by the sympathetic nervous system), thereby causing more complete ejection of blood from the ventricle and a resultant lower end systolic volume. ...
The paper describes an experimental activity on the spatial and temporal liquid- and vapor-phase distributions of diesel fuel at engine-like conditions. The influence of the k-factor (0 and 1.5) of a single-hole axial-disposed injector (0.100 mm diameter and 10 L/d ratio) has been studied by spraying fuel in an optically-accessible constant-volume combustion vessel.A high-speed imaging system, capable of acquiring Mie-scattering and Schlieren images in a near simultaneous fashion mode along the same line of sight, has been developed at the Michigan Technological University using a high-speed camera and a pulsed-wave LED system. The time resolved pair of schlieren and Mie-scattering images identifies the instantaneous position of both the vapor and liquid phases of the fuel spray, respectively. The studies have been performed at three injection pressures (70, 120 and 180 MPa), 23.9 kg/m3 ambient gas density and 900 K gas temperature in the vessel. A pre-combustion of reactants filling the vessel ...
Min Zi, a cardiovascular researcher from the University of Manchester uses PV Loop and hemodynamic analyses to investigate the molecular processes that lead to the development of cardiac hypertrophy with the goal to uncover new and effective treatments of the disease.
A pressure-volume (PV) loop for the left ventricle is generated as left ventricular pressure is plotted against left ventricular volume at multiple time points during a complete cardiac cycle. [More… ...
S in ventricular cross-sectional area to estimates of ventricular volume over the beat cycle.Automated In Vivo Hypercholesterolemia ScreenFigure 4. Waveform
Liver segmentation and volume determination using automatic vs. semi-automatic methods A. Emre Kavur, Naciye Sinem Gezer, Mustafa Barış, Yusuf Şahin, Savaş Özkan, Bora Baydar, Ulaş Yüksel, Çağlar Kılıkçıer, Şahin Olut, Gözde Bozdağı Akar, Gözde Ünal, Oğuz Dicle, M. Alper Selver. ...
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The purpose of this article is to present our experience with normal and abnormal fetal cardiac structures reconstructed in the HDlive silhouette mode (GE Healthcare Japan, Tokyo, Japan) with spatiotemporal image correlation (STIC). Twenty-two fetuses with normal hearts and 1 fetus with a congenita...
Real-time three-dimensional echocardiography for determining right ventricular stroke volume in an animal model of chronic right ventricular volume overload.
In the present study, the right ventricles of 10 Beagle dogs were investigated by means of 3DE and CCT in comparison with the reference method CMRI. The major challenge for determining right ventricular volume is the right ventricle itself. The complex shape with its segmentation in body, inflow and outflow tract, the thin RV wall and the heavy trabeculation make the RV measurement in two-dimensional echocardiography difficult [6]. CMRI is the gold standard for RV volumetric quantification in human medicine [18] and overcomes the limitation of 2D echocardiography by using a three-dimensional volume set, as well as the 3D modalities 3DE and CCT. Although the assessment of left ventricular function using two- and three-dimensional volume estimation is part of various veterinary publications [27]-[30], there are to the best knowledge of the author no veterinary studies concerning the evaluation of right ventricular function either by means of two-dimensional volume calculation or even ...
We postulated that changes in cardiac high-energy phosphate metabolism may underlie the myocardial dysfunction caused by hypobaric hypoxia. Healthy volunteers (n=14) were studied immediately before, and within 4 d of return from, a 17-d trek to Mt. Everest Base Camp (5300 m). (31)P magnetic resonance (MR) spectroscopy was used to measure cardiac phosphocreatine (PCr)/ATP, and MR imaging and echocardiography were used to assess cardiac volumes, mass, and function. Immediately after returning from Mt. Everest, total body weight had fallen by 3% (P|0.05), but left ventricular mass, adjusted for changes in body surface area, had disproportionately decreased by 11% (P|0.05). Alterations in diastolic function were also observed, with a reduction in peak left ventricular filling rates and mitral inflow E/A, by 17% (P|0.05) and 24% (P|0.01), respectively, with no change in hydration status. Compared with pretrek, cardiac PCr/ATP ratio had decreased by 18% (P|0.01). Whether the abnormalities were even greater at
We examined possible age- and gender-specific differences in the function and mass of left (LV) and right (RV) ventricles in 36 healthy volunteers using cine gradient-recalled echo magnetic resonance imaging. Subjects were divided into four groups (nine men and nine women in each): men aged under 45 years (32 +/- 7), women aged under 45 (27 +/- 6), men aged over 45 (59 +/- 8), and women aged over 45 (57 +/- 9). Functional analysis of cardiac volume and mass and of LV wall motion was performed by manual segmentation of the endocardial and epicardial borders of the end-diastolic and end-systolic frame; both absolute and normalized (per square meter body surface area) values were evaluated. With age there was a significant decrease in both absolute and normalized LV and RV chamber volumes (EDV, ESV), while LV and RV masses remained unchanged. Gender-specific differences were found in cardiac mass and volume (for men and women, respectively: LV mass, 155 +/- 18 and 110 +/- 16 g; LV EDV, 118 +/- 27 and 96 +/
Purpose:To compare indexed right ventricular (RV) end-diastolic volume (RVEDVi) and the ratio of RV volume to left ventricular (LV) volume (RV/LV ratio) in prediction of significant pulmonary regurgitation (PR) after tetralogy of Fallot (TOF) repair
Nuclear fuel technology - Tank calibration and volume determination for nuclear materials accountancy - Part 6: Accurate in-tank determination of liquid density in accountancy tanks equipped with dip tubes
TY - JOUR. T1 - Evaluation of myocardial volume heterogeneity during end-diastole and end-systole using cine MRI. AU - Swingen, Cory. AU - Wang, Xiaoen. AU - Jerosch-Herold, Michael. PY - 2004. Y1 - 2004. N2 - The aim of this study was to examine the difference in the myocardial volume between end-diastole and end-systole in 24 human volunteers, using steady-state free precession gradient-echo cine imaging of both long- and short-axis views of the left ventricle and a newly developed three-dimensional (3D) analysis method. In addition, we examined retrospectively the cine magnetic resonance imaging (MRI) studies from 20 of the subjects that included a stack of short-axis views, from base to apex, suitable for a standard two-dimensional (2D) analysis. With the 3D analysis method, no significant variance in the myocardial volume was found (mean difference=0.1%±9.1%, p=0.88) between end-diastole (ED) and end-systole (ES), while the 2D technique yielded significantly larger values for the LV ...
TY - JOUR. T1 - Accuracy of the long-axis area-length method for the measurement of left ventricular volumes and ejection fraction using multidetector computed tomography. AU - Lessick, Jonathan. AU - Ghersin, Eduard. AU - Abadi, Sobhi. AU - Yalonetsky, Sergey. PY - 2008. Y1 - 2008. N2 - Background: Multidetector computed tomography (MDCT) is useful for assessing left ventricular (LV) volumes and function. Validation has mainly been carried out using Simpsons method of summing up consecutive short-axis areas. Because the latter method is time-consuming, many users prefer using a quicker method, based on a single view or a pair of views. Objectives: To evaluate the accuracy of the long-axis area-length method (AL), which has not been validated for MDCT, using Simpsons method as the gold standard, as well as right anterior oblique LV angiography as a clinical standard. Methods: Twenty-three patients admitted with acute chest pain were clinically evaluated with electrocardiogram-gated MDCT and ...
LONDON - In the past year, total sales of heart failure (HF) therapeutics across the 7 major markets (including Japan, the US and 5EU) were estimated at around USD 3.2 billion. This figure is predicted to increase in the years to come, registering a 13.5% CAGR. By 2025, total heart failure therapeutics sales across 7MM are likely to touch USD 11.5 billion.. Meantime, the chronic heart failure therapeutics market across 7MM is expected to increase from USD 3.1 billion in the previous year up to USD 10.1 billion by 2025, posting a CAGR of 12.7%. In 2015, the US dominated the chronic heart failure therapies market, accounting for a share of over 60% of total sales. The uptake of Novartis Entresto is anticipated to perform as a strong driver of the chronic heart failure and also total heart failure markets in the 7MM; in 2022 it will likely reach peak sales worth of USD 5.9 billion.. The acute heart failure therapeutics market is expected to grow from USD 188.1 million in the past year to around ...
By combining conventional methods for recording pressures from the left ventricle and pleural cavity with a new procedure for estimating end-diastolic volume (EDV) and end-systolic volume (ESV) of the left ventricle it was found in the closed-chest dog that plethora increased EDV, ESV and stroke volume while hemorrhage had the opposite effect. There were linear relationships between EDV and ESV, and between EDV and stroke volume. There was little change in left ventricular effective end-diastolic pressure when the EDV changed over a wide range, beginning with the smallest EDV consistent with life; but after a certain large EDV had been reached, large increases in effective end-diastolic pressure were associated with little or no further increase in EDV.. ...
TY - JOUR. T1 - Three-dimensional echocardiography for left ventricular quantification: fundamental validation and clinical applications. AU - van der Heide, J.A.. AU - Kleijn, S.A.. AU - Aly, M.F.A.. AU - Slikkerveer, J.. AU - Kamp, O.. PY - 2011. Y1 - 2011. U2 - 10.1007/s12471-011-0160-y. DO - 10.1007/s12471-011-0160-y. M3 - Article. VL - 19. SP - 423. EP - 431. JO - Netherlands Heart Journal. JF - Netherlands Heart Journal. SN - 1568-5888. IS - 10. ER - ...
Objetivos: Avaliar e descrever os desfechos maternos e neonatais de gestantes com diagnóstico de cervicodilatação precoce submetidas à cerclagem de emergência ou à conduta expectante com repouso. Avaliar...
Robert M. Hansen, Christian E. Viquerat, Michael A. Matthay, Jeanine P. Wiener-Kronish, Teresa DeMarco, Satinder Bahtia, James D. Marks, Elias H. Botvinick, Kanu Chatterjee; Poor Correlation Between Pulmonary Arterial Wedge Pressure and Left Ventricular End-diastolic Volume after Coronary Artery Bypass Graft Surgery. Anesthesiology 1986;64(6):764-770. Download citation file:. ...
BACKGROUND: Whether the myocardium in nonischemic heart failure experiences oxygen limitation remains a long-standing controversy. We addressed this question in patients with dilated cardiomyopathy (DCM) using a dual approach. First, we tested the changes in myocardial oxygenation between rest and stress states, using oxygenation-sensitive cardiovascular magnetic resonance. Second, we sought to assess the functional consequences of oxygen limitation at rest by measuring myocardial energetics before and after short-term oxygen supplementation. METHODS AND RESULTS: Twenty-six subjects (14 DCM and 12 normal) underwent cardiac magnetic resonance imaging at 3 Tesla to assess cardiac volumes, function, oxygenation, and first-pass perfusion (0.03 mmol/kg Gd-DTPA bolus) at stress and rest (4-6 minutes IV adenosine, 140 μg/kg per minute). Signal intensity change (SIΔ) and myocardial perfusion reserve index (MPRI) were measured from oxygenation and perfusion images, respectively. Furthermore, the effect of
The assessment of left ventricular (LV) volume and ejection fraction (EF) is vital to the practice of cardiology. These measures are used to inform prognosis in most cardiac patient populations, determine treatment decisions for a variety of therapies, and function as eligibility criteria in many clinical trials (1-5). Despite their importance, there is no consensus on the best method to routinely measure EF and volumes.. Two-dimensional echocardiography (2DE) is the most ubiquitous tool for assessing LV size and systolic function. Measurement of EF is the most common reason for referring a patient for an echocardiogram (6). This test is noninvasive, portable, inexpensive, radiation free, and quick. It does not, however, provide reliable, reproducible, and accurate measures of EF or volumes (7). Traditionally, 2DE has used the method of disks to calculate LV volumes based on areas in only 2 imaging planes (6). This method is subject to errors due to foreshortening, poor endocardial definition, ...
In 10 normal dogs, the right and left ventricular volumes and compliances were determined in the fresh post-mortem heart. With the use of a SigmaMotor pump, Ringers solution at 23°C was simultaneously infused into both ventricles within an hour after death. When the ventricles were full but open to atmospheric pressure, the mean volumes were 35.8 ml/m2 for the right and 23.1 ml/m2 for the left ventricle; when the transmural pressure was increased by 10 mm Hg, the mean volumes were 56.9 ml/m2 for the right and 41.9 ml/m2 for the left ventricle; at 20 mm Hg, the values were 60.8 and 48.5 ml/m2, respectively. The initial volumes and the increases in volume produced by increase in transmural pressure were affected by the position of the ventricular septum and by the presence of rigor mortis. With infusions into only one ventricle, right and left ventricular volumes were 20 to 74% greater at 10 mm Hg than the values when both ventricles were filled simultaneously. Compliance began to decrease 40 to ...
ABSTRACT: Ventricular pressure-volume area (PVA) is a specific area in the pressure-volume diagram, which represents the total mechanical energy generated by each contraction, consisting of stroke work and mechanical potential energy at end-systole. Animal experiments have shown that PVA is correlated linearly with the ventricular oxygen consumption (Vo2) per beat under a variety of loading conditions in a stable contractile state. The slope of the Vo2-PVA line has been shown to remain constant in different contractile states, implying a constant stoichiometry between Vo2 and PVA. As a first step to understand the nature of this Vo2-PVA relation, we devised a new crossbridge (CB) model to theoretically relate PVA with the total enthalpy change associated with the ATP hydrolysis for all CB cycles. One of the most important assumptions on which this model analysis depended was that the time-varying elasticity model could simulate the instantaneous pressure-volume relation. The result of this ...
Data & statistics on Relationship between heart rate and oxygen consumption: Relationship between heart rate and oxygen consumption, Cardioplegia volume ( A ) , total heart oxygen consumption (LV MVO,, in milliliters of oxygen; B), and arterial-venous oxygen content diferences (C) during each delivey interval. Duration of induction was 5 minutes at 4
Effects of new single-nucleotide polymorphisms (SNPs) on genome-wide association study results. In both cases, the phenotype being used is total heart weight af
For information about COVID-19, including symptoms and prevention, please read our COVID-19 patient guide. If you need to see your provider, please contact us to see if a Video Visit is right for you. Please also consider supporting Weill Cornell Medicines efforts against the pandemic ...
In the professional opinion of one person who I was reading the confusion on the subject of kettlebells vs. dumbbells comes from a lack of proper instruction regarding how to practice with kettlebells. As a direct result many people make the critical mistake of attempting to use kettlebells as if they were traditional weights.. Traditional weight lifting is what is single-plane static. This refers to how your body is in a fixed position while moving weight towards and away from you in a linear manner through a direct line of applied force. All the while attempting not to use any momentum and targeting an isolated muscle or muscle group. Whats more traditional weight lifting builds muscles differently. Generally speaking the goal of bodybuilding is muscle hypertrophy meaning an increase in muscle size. Unfortunately most people associate size with strength. What most people do not know is that 50-70-percent of hypertrophy size is from fluid called Sarcoplasm. Sarcoplasmic Volume accounts for ...
Biography: Dr. Teeters research focuses on image-based orthopedic implant design and evaluation, including 3D printing technologies and imaging techniques such as micro-CT, CT, RSA, and single-plane fluoroscopy. He has a particular interest in implant wear, and directs the Implant Retrieval Laboratory at LHSC. ...
Gas adsorption analysis is not only used for the determination of BET-surface area but for the analysis of pore size distribution and total pore volume determination as well.
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Eventbrite - ADInstruments Limited presents Pressure-Volume Techniques & Analysis Practical Workshop, Prague: Day 1 - Thursday, 22 June 2017 at IKEM. Find event and registration information.
The LogoRevealer volume in the Motion Design Elements Collection comes onscreen, covers a predefined area and then animates offscreen to reveal something underneath. This volume can be used to reveal not only text but logos and other graphics as well ...
"Volume 1, Issue 1". Wiley Online Library. March 1986. Retrieved 16 May 2022.{{cite web}}: CS1 maint: url-status (link) Official ... The Journal of Cardiac Surgery is a peer-reviewed medical journal about cardiology and surgery that was established in March ...
Dubin (2003). Ion Adventure in the Heartland Volume 1. Cover Publishing Company. p. 145. ISBN 978-0-912912-11-0. Goodenough, ... Rate dependence of the action potential is a fundamental property of cardiac cells and alterations can lead to severe cardiac ... Interactive animation illustrating the generation of a cardiac action potential Interactive mathematical models of cardiac ... Cardiac Electrophysiology Clinics. 3 (1): 23-45. doi:10.1016/j.ccep.2010.10.012. PMC 3164530. PMID 21892379. Krul S. "Cardiac ...
... cardiac reserve and inotropic response". Postgraduate Medical Journal. 67 Suppl 1: S10-S20. PMID 1924075. (CS1: long volume ... Cardiac reserve may be 4-5 times greater than a resting value for a healthy person. Cardiac reserve has been measured in ... It is possible to make a non-invasive measurement of cardiac reserve. A measure of cardiac reserve can help predict the ... Cardiac reserve refers to the difference between the rates at which the heart pumps blood - at any given time versus its ...
Pediatric and Congenital Cardiac Care: Volume 1: Outcomes Analysis. Springer. p. 219. ISBN 978-1-4471-6587-3. Retrieved 27 ... The following audits are available within the CCAD: Adult cardiac interventions Cardiac rhythm management Adult cardiac surgery ... National Congenital Heart Disease Audit (NCHDA) (formerly called the Central Cardiac Audit Database) is a database established ... in 2000 for quality assurance purposes, to monitor the outcome for an individual who has undergone cardiac treatment. It ...
During heart volume overload, cardiomyocytes grow through eccentric hypertrophy. The cardiomyocytes extend lengthwise but have ... Cardiac muscle cells also called cardiomyocytes are the contractile myocytes of the cardiac muscle. The cells are surrounded by ... The ease of ion movement along cardiac muscle fibers axes is such that action potentials are able to travel from one cardiac ... Cardiac fibroblasts are vital supporting cells within cardiac muscle. They are unable to provide forceful contractions like ...
... and other hemodynamic parameters such as the stroke volume (SV) and cardiac index (CI). The CO estimated by the qCO monitor is ... The assessment of Cardiac Output (CO) is important because it reveals the main cardiac function: the supply of blood to tissues ... The rise of volume is the main therapy elected to improve oxygen delivery. However, approximately, only 50% of subjects respond ... quantium Medical Cardiac Output (qCO) uses impedance cardiography in a simple, continuous, and non-invasive way to estimate the ...
See Wiggers diagram: "Ventricular volume" tracing (red), at "Systole" panel.) Cardiac diastole is the period of the cardiac ... of the cardiac cycle. Throughout the cardiac cycle, blood pressure increases and decreases. The movements of cardiac muscle are ... Apex beat Cardiac action potential Cardiac output Pulse "19.3 Cardiac Cycle , Anatomy & Physiology". library.open.oregonstate. ... The red-line tracing of "Ventricular volume" provides an excellent track of the two periods and four stages of one cardiac ...
Cardiac output (CO) is a measurement of the amount of blood pumped by each ventricle (stroke volume, SV) in one minute. To ... stroke volume is dependent upon the difference between end diastolic volume and end systolic volume. The three primary factors ... controls the stroke volume which determines the end systolic volume. The greater the contraction the greater the stroke volume ... Many of the factors that regulate the heart rate also affect cardiac function by altering the stroke volume. While a number of ...
The area under the flow-versus-time curve for one cardiac cycle is the stroke volume. The length of the cardiac cycle is known ... Cardiac input (CI) is the inverse operation of cardiac output. As cardiac output implies the volumetric expression of ejection ... its cardiac output, Q. Cardiac output is classically defined alongside stroke volume (SV) and the heart rate (HR) as:[citation ... end diastolic volume (EDV) / end systolic volume (ESV) Cardiac input is a readily imaged mathematical model of diastole.[ ...
"Cardiac T1 Mapping and Extracellular Volume (ECV) in clinical practice: a comprehensive review". Journal of Cardiovascular ... Cardiac magnetic resonance imaging (cardiac MRI), also known as cardiovascular MRI, is a magnetic resonance imaging (MRI) ... Initial attempts to image the heart were confounded by respiratory and cardiac motion, solved by using cardiac ECG gating, ... cardiac ultrasound) cannot provide sufficient diagnostic information, (2) as an alternative to diagnostic cardiac ...
Masters, Barry R. (2012-05-25). "Harrisons's Principles of Internal Medicine, 18th Edition, two volumes and DVD. Eds: Dan L. ... "Cardiac Myxoma". The Lecturio Medical Concept Library. Retrieved 6 July 2021. "Cardiac Myxoma". The Lecturio Medical Concept ... Cardiac myxoma can affect adults between 30 and 60 years of age. Symptoms may occur at any time, but most often they accompany ... Cardiac Myxomas: A 50-Year Experience With Resection and Analysis of Risk Factors for Recurrence. Ann Thorac Surg. 2015 Aug;100 ...
The decrease in stroke volume can also ultimately lead to a decrease in cardiac output, which could be signaled by tachycardia ... This results in a decrease in cardiac input and output. A further decrease of cardiac input and output is typical in phase III ... "Management of Cardiac Tamponade After Cardiac Surgery". Journal of Cardiothoracic and Vascular Anesthesia. Elsevier BV. 26 (2 ... If the drainage volume drops off, and the blood pressure goes down, this can suggest a tamponade due to chest tube clogging. In ...
CS1: long volume value, Orphaned articles from March 2014, All orphaned articles, Stem cell research). ... Human engineered cardiac tissues (hECTs) are derived by experimental manipulation of pluripotent stem cells, such as human ... hECTs also express key cardiac genes (α-MHC, SERCA2a and ACTC1) nearing the levels seen in the adult heart. Analogous to the ... Zhang D, Shadrin IY, Lam J, Xian HQ, Snodgrass HR, Bursac N (Jul 2013). "Tissue-engineered cardiac patch for advanced ...
The sum of these two areas (PE + SW) is known as the pressure-volume area (PVA). PVA is a first order approximation of MVO2. ... Acute cardiac unloading is able to functionally uncouple the heart from cardiac output, allowing the heart to rest and recover ... Acute cardiac unloading decreases cardiac MVO2 and has been demonstrated to limit the amount of scar tissue that forms, thus ... Maintaining sufficient cardiac output is the primary objective of therapeutic approaches treating these cardiac conditions. ...
Cardiac destroys the shipment, saying that he wasn't "there to destroy a misguided hero".[volume & issue needed] Cardiac helps ... Hammer hires the Rhino to kill Cardiac for raiding his company, but Cardiac defeats him. Cardiac next destroys the house and ... While Cardiac was away fighting the Goblin King's minions, the Goblin King has the H.E.A.R.T. Clinic destroyed. Cardiac's heart ... Wolverine turns Cardiac's weapon on a nearby building. Cardiac is stunned and buried under several large chunks of masonry. ...
A widow maker cannot kill instantly but induces cardiac arrest which may do so within 10 to 20 minutes of no circulation. A ... Richard Beebe; Jeff Myers (11 December 2009). "34". Professional Paramedic, Volume I: Foundations of Paramedic Care. Cengage ... Heart attack Cardiac vessels Human heart with coronary arteries Heart coronary territories This article incorporates text in ... The LAD is frequently implicated in sudden cardiac death, predominantly in adult males. Clinicians often refer to the LAD as ...
The 3 major measurements obtained by cardiac ventriculography are: Ejection Fraction Stroke Volume Cardiac Output These three ... Cardiac ventriculography involves injecting contrast media into the heart's ventricle(s) to measure the volume of blood pumped ... Cardiac ventriculography is a medical imaging test used to determine a person's heart function in the right, or left ventricle ... Cardiac ventriculography can be performed with a radionuclide in radionuclide ventriculography or with an iodine-based contrast ...
Cardiac output is the product of stroke volume and heart rate. Stroke volume is influenced by 1) the end diastolic volume or ... In the short-term, the greater the blood volume, the higher the cardiac output. This has been proposed as an explanation of the ... The resultant increase in blood volume results in an increased cardiac output by the Frank-Starling law of the heart, in turn ... MAP is the average of blood pressure over a cardiac cycle and is determined by the cardiac output (CO), systemic vascular ...
Cardiac output (Lit./Min.): 6.26 Stroke Volume (Ml.): 75 Heart Rate (Per min.): 85 Blood Pressure: Unaffected Cardiac output ... Estrogen mediates this rise in cardiac output by increasing the pre-load and stroke volume, mainly via a higher overall blood ... During pregnancy the plasma volume increases by 40-50% and the red blood cell volume increases only by 20-30%. These changes ... and leads to a decrease in expiratory reserve volume and residual volume. This culminates in a 20% decrease in functional ...
In cardiology, an Austin Flint murmur is a low-pitched rumbling heart murmur which is best heard at the cardiac apex. It can be ... The Topol Solution: Textbook of Cardiovascular Medicine, Third Edition with DVD, Plus Integrated Content Website, Volume 355. ... "On cardiac murmurs". American Journal of the Medical Sciences. 44: 29-54. Eric J. Topol. ...
Indeed, there are known and well-defined changes in the cardiovascular system with space flight: plasma volume is reduced; left ... cardiac remodeling, and dehydration medications that interfere with the cardiac potassium ion channels. Which of these factors ... Cardiac rhythm disturbances could jeopardize mission objectives and, at the most extreme, the life of crewmembers. The worst- ... Systematic studies of cardiac rhythm disturbances have been performed during short-duration space flight. These studies were ...
Part 1". Annals of Cardiac Anaesthesia. 14 (3): 218-229. doi:10.4103/0971-9784.84030. PMID 21860197. Retrieved May 7, 2014. "Dr ... Volume 2. Elsevier Health Sciences. p. 8. ISBN 978-0323091619. Chauhan, S., Subin, S. (2011). "Extracorporeal membrane ...
Pediatric Cardiac Surgery Annual. 19 (1): 37-43. doi:10.1053/j.pcsu.2015.11.006. PMID 27060041. Hraska V, Hjortdal VE, Dori Y, ... 2021;7: , volume = 7 , issue = 1 , pages = 253-260 , date = Jun 2021 , pmid = 34318266 , doi =10.1016/j.xjtc.2021.01.045 Gordon ... Often, cardiac catheterization is performed to check the resistance before proceeding with the surgery. This is also the reason ... Chronic venous hypertension and lowered cardiac output are assumed to be at the root of lymphatic complications such as ...
Entomophaga 1990, Volume 35, Issue 3, pp 431-435 (abstract) Sztab, Lin; Henderson, Lesley (2015). "Rubber vine" (PDF). arc. ... ISBN 3-923381-27-1. Radford, Dorothy J.; Gillies, Andrew D.; Hinds, John A. and Duffy, Patrick; 'Naturally Occurring Cardiac ...
"Peripherally inserted veno-venous ultrafiltration for rapid treatment of volume overloaded patients". Journal of Cardiac ... Aug 1993). "Sustained cardiac diastolic changes elicited by ultrafiltration in patients with moderate congestive heart failure ... "Sustained improvement in functional capacity after removal of body fluid with isolated ultrafiltration in chronic cardiac ... Fluid balance Fluid overload Blood volume Diuretics Apheresis Congestive Heart Failure Hypervolemia Ultrafiltration (renal) ...
Afterload Cardiac output Frank-Starling law of the heart Passive leg raising test Volume overload "CV Physiology: Preload". www ... In cardiac physiology, preload is the amount of sarcomere stretch experienced by cardiac muscle cells, called cardiomyocytes, ... Sarcomere length can be approximated by the volume of the ventricle because each shape has a conserved surface-area-to-volume ... These are affected by venous tone and volume of circulating blood. Preload is related to the ventricular end-diastolic volume; ...
Low pressure baroreceptors are involved in regulation of the blood volume. The blood volume determines the mean pressure ... This same sympathetic outflow is increased to the sinus node in the atria, which causes increased heart rate/cardiac output. ... Low pressure baroreceptors are also referred to as volume receptors and cardiopulmonary baroreceptors. There are two types of ... Bainbridge reflex High pressure receptors Atrial volume receptors Armstrong, Maggie, et al. Physiology, Baroreceptors - ...
Circulation 1991; 83(4):1481-1488 Cardiac arrhythmias. (Volume 9 of the Handbook of Internal Medicine) Springer Verlag, 5th ... especially the diagnosis and pharmacological and non-pharmacological therapy of cardiac arrhythmias and acute cardiac death, in ... of the standard work Cardiac Mapping for the localisation diagnosis of cardiac arrhythmias. His pioneering clinical ... Management of Cardiac Patients During the COVID-19 Pandemic. J Saudi Heart Assoc 2020; 32(5):24-25 In the Medline database ...
... and stabilizing total body water volume and distribution. The most common findings of cardiac asthma are the presence of wheeze ... "Cardiac Asthma: Causes, Symptoms, and Treatments". Healthline. 18 May 2021. "What causes cardiac asthma?". Mayo Clinic. Tanabe ... Because of the similarity in symptoms, diagnosis of cardiac versus bronchial asthma relies on full cardiac workup and pulmonary ... "Cardiac Asthma: Not Your Typical Asthma". www.uspharmacist.com. Retrieved 2022-03-08. Buckner, Kern (1 February 2013). "Cardiac ...
The heart functions as a pump delivering an intermittent volume of blood, incrementally delivered to the lungs, body, and brain ... In cardiology, the cardiac skeleton, also known as the fibrous skeleton of the heart, is a high-density homogeneous structure ... The cardiac skeleton binds several bands of dense connective tissue, as collagen, that encircle the bases of the pulmonary ... The cardiac skeleton ensures that the electrical and autonomic energy generated above is ushered below and cannot return. The ...
... four cardiac surgical suites, post-procedure recovery units, and cardiac rehabilitation. Dedicated cardiac imaging suites for ... ranking it in the top 15 in the country as far as volume John Spertus developed and popularized patient reported outcome tools ... "Comprehensive Cardiac Center Certification". www.jointcommission.org. Retrieved 2019-02-21. "Regional News/Midwest: St. Luke's ... There are five cardiac catheterization laboratories, two electrophysiology laboratories, ...
Volume 2 is an alphabetical index of Volume 1. Both volumes can be downloaded for free from the website of the World Health ... 427.8 Other specified cardiac dysrhythmias 427.81 Sick sinus syndrome 427.89 Sinus bradycardia, NOS 427.9 Cardiac dysrhythmia ... The full chapter can be found on pages 215 to 258 of Volume 1, which contains all (sub)categories of the ICD-9. ... anomalous Wolff-Parkinson-White syndrome 427 Cardiac dysrhythmias 427.0 Tachycardia, paroxysmal supraventricular 427.3 Atrial ...
... volume evaluation, fetal lung maturity, and general fetus well being. Second-trimester ultrasound screening for aneuploidies is ... including number of amnionic sacs and chorionic sacs for multiple gestations Fetal cardiac activity Fetal position relative to ... including number of amnionic sacs and chorionic sacs for multiple gestations Embryonic/fetal cardiac activity Assessment of ... including site of umbilical cord insertion when possible Amnionic fluid volume Gestational age assessment Fetal weight ...
Hence cardiac physical examination also helps as heart sounds is heard best at right chest with dextrocardia. In the condition ... Effect of Varying the Preparatory Diet Upon the Yield of Abnormal Young: Four Figures, The Journal of Nutrition, Volume 35, ... This reduction in total lung volume sets limits on patients' exercise tolerance, and contribute to shortness of breath after ... As a result, the mediastinal and skeletal shift toward the volume loss side. Recent approach involves the implantation of ...
McNamara, R. (Ed.) (2006), Where God and Science Meet [3 Volumes]: How Brain and Evolutionary Studies Alter Our Understanding ... Evolutionary psychology is based on the hypothesis that, just like the cardiac, pulmonary, urinary, and immune systems, ... or edited thirteen volumes, all dealing with the psychology of religion. Kenneth Pargament is noted for his book Psychology of ...
A new cardiac/vascular procedure lab and cardiopulmonary/nuclear medicine expansion also will enhance the care Bethesda North ... In 2003, Bethesda North met demand for higher volume, increased technological sophistication and improved access through a ...
Cardiac surgery was implemented in the hospital in 1991 in tandem with angioplasty to alleviate the backlog of surgeries and ... Volumes 26-27. Published 1906. Original from the University of Michigan. The Royal Columbian Hospital founded in 1859, now ... The cardiac surgery program performed 250 cardiopulmonary bypass (CPB) procedures in the first year. Since the hospital had the ... The hospital has the only program capable of performing cardiac surgery for expectant women in the Province of British Columbia ...
A muscular ring, called the cardiac sphincter, connects the stomach to the esophagus. This sphincter is very well developed in ... ISBN 0-7136-1701-2. p.38 Getty (1975)"Equine Osteology" in Sisson and Grossman's The Anatomy of the Domestic Animals Volume 1 ...
He was called the "Walking Duke Elder" ho wrote 16 volumes on eye called the system of Ophthalmology. Andhra Medical College ... The department was upgraded to 36-beds and 18-bedded Intensive Cardiac Care Unit. An Intermediate Coronary Care Unit was opened ...
From 1986, the University of Minnesota had put into use a database for cardiac surgery. Developed by both Ed Sweeney and Kaye, ... Volume 2, Issue 4, pp. 4-8. Heart and Lung Transplantation 2000. R.G. Landes Co., 1993. (With John B. O'Connell) Jamieson, ... "Cardiac Magnetic Resonance Imaging and Multidetector Computed Tomography Scan Illustrating Damus-Kaye-Stansel Operation". ...
Frances lost her husband to a severe cardiac condition in the mid 1970s. ... She leaves two sons, Bruce Winiarski in Uniondale ... Volume 1 (Marvel, 2006; ISBN 0-7851-1884-5). As both writer and artist, he created the early superhero-humor feature "The ...
The Institute shows an increasing number of admissions with appropriateness criteria and a progressive increase in the volume ... physiotherapy and cardiac catheterization, three new hospital departments, and three clinics; it incorporates new university ...
He obtained 4,239 votes (4.66%). In old age, Singh suffered from diabetes as well as lung and cardiac ailments. On 16 June 2014 ... STATISTICAL REPORT ON GENERAL ELECTIONS, 1980 TO THE SEVENTH LOK SABHA - VOLUME I (NATIONAL AND STATE ABSTRACTS & DETAILED ...
In certain conditions such as in the case of cardiac disease, the Na⁺/K⁺-ATPase may need to be inhibited via pharmacological ... The Na⁺/K⁺-ATPase helps maintain resting potential, affects transport, and regulates cellular volume. It also functions as a ... For instance, Na⁺/K⁺-ATPase found in the membrane of heart cells is an important target of cardiac glycosides (for example ... Glitsch HG, Tappe A (January 1993). "The Na+/K+ pump of cardiac Purkinje cells is preferentially fuelled by glycolytic ATP ...
... of masses and volumes of heart chambers (cardiac MRI). Among the results from this work is that the so-called third heart sound ... The Diastatic Pressure-Volume Relationship Is Not the Same as the End-Diastolic Pressure-Volume Relationship. American Journal ... Point:Left ventricular volume during diastasis is the physiological in vivo equilibrium volume and is related to diastolic ... Point-Counterpoint: Left ventricular volume during diastasis IS/IS NOT the physiologic in-vivo equilibrium volume and IS/IS NOT ...
"Cardiac kid: Nick Folk gets pumping again". August 20, 2010. "Ancestry of Bill Richardson". "Allen and Riegert tend to the ' ... Gale Research Inc, Notable Hispanic American women, Volume 2 P.78 VNR AG, 1993 Sandra Marquez (August 23, 2007). "Linda Jean ...
India today, Volume 24. Thomson Living Media India Ltd., 1999. p. 38 The drama of Barry John's life Divya Vasisht, The Times of ... She never recovered from the coma and died of cardiac arrest at her Defence Colony home in the early hours of 1 October 2010 at ...
In January 1894, he was diagnosed with cardiac disease and partially retired from his work at Drexel Morgan. That summer he ... ISBN 978-0-465-03053-8. Hall, Henry (1895). Volume 1, Successful Men of Affairs. New York tribune. Jones, Francis Arthur (1908 ...
Serious cardiac events, including some that have been fatal, have occurred following the use of sumatriptan injection or ... Portal: Medicine (CS1: long volume value, CS1 Russian-language sources (ru), Articles with short description, Short description ... Kelly KM (June 1995). "Cardiac arrest following use of sumatriptan". Neurology. 45 (6): 1211-3. doi:10.1212/wnl.45.6.1211. PMID ...
An acute cardiac injury was found in 12% of infected people admitted to the hospital in Wuhan, China, and is more frequent in ... Face coverings limit the volume and travel distance of expiratory droplets dispersed when talking, breathing, and coughing. A ... cardiac muscle cell necrosis Liver: microvesicular steatosis Nose: shedding of olfactory epithelium Brain: infarction Kidneys: ...
2 Tony Lara, the fourth captain of F/V Cornelia Marie, died on August 8, 2015 in Sturgis, South Dakota, victim of Cardiac ... However, due to the volume of profanities used in the course of crew member conversation, the producers occasionally employ ...
Volume One (1976) Galactic Empires. Volume Two (1976) Perilous Planets (1978) Mini Sagas: From The Daily Telegraph Competition ... ", "Cardiac Arrest" (novelette), "In the Arena", "All the World's Tears", "Amen and Out", "The Soft Predicament" (novelette), " ... he edited a large-format volume Science Fiction Art (1975), with selections of artwork from the magazines and pulps. In ... as well as several volumes of poetry. The Brightfount Diaries (1955, Faber) Non-Stop (1958, Faber), (1959, Digit), (1976, Pan ...
... to visualize the position and volume of blood within the heart chambers and arteries. Coronary angiography is used to determine ... These cardiac techniques are otherwise referred to as echocardiography, Cardiac MRI, Cardiac CT, Cardiac PET and Cardiac SPECT ... Stress cardiac imaging is discouraged in the evaluation of patients without cardiac symptoms or in routine follow-ups. ... The CAC score is an independent marker of risk for cardiac events, cardiac mortality, and all-cause mortality. In addition, it ...
CS1: long volume value, Articles with short description, Short description is different from Wikidata, Genes on human ... Chief among these are modulation of Ca2+ release, modulation of cardiac myocyte contractility, and inhibition of voltage gated ...
Furbish died of cardiac hypertrophy at the age of 97 on December 6, 1931. She was well known in the botanist and naturalist ... Furbish soon collected over 1,300 water colors and pressings in a book that spanned fourteen volumes she titled "Flora of Maine ...
Volume 3. Bray, George A (2004). Handbook of Obesity: Etiology and Pathophysiology. New York, New York: Marcel Dekker. Ball, ... This "sympathoadrenal discharge" causes an increase in heart rate, cardiac output, blood pressure, triglyceride and glucose ...
Owing to the timely preparations in the country, only one cardiac arrest fatality was attributable to Gert when a landslide ... Chetumal, Mexico: Centro de Estudios Estratégicos (Universidad de Quintana Roo). volume 1, chapter 2, p. 16. Retrieved 2011-10- ... long volume value, Articles with short description, Short description matches Wikidata, Featured articles, 1993 Atlantic ...
The cardiac output of an athlete is difficult to manipulate during competitions and the distribution of cardiac output is at ... In other words, hemoglobin concentration and blood volume contribute to hemoglobin mass. Many forms of blood doping stem from ... depends on cardiac output, O2 extraction and hemoglobin mass. ...
This way, medical specialists are able to measure both cardiac output and circulating blood volume from outside the body. ...
During this time, Ayub Khan survived a near-fatal cardiac arrest that put him out of the office, and later survived a paralysis ... Sridharan, E. (2014). International Relations Theory and South Asia (OIP): Volume I: Security, Political Economy, Domestic ...
Volume 10, Number 5-May 2004 Letter. Smallpox Vaccination and Adverse Cardiac Events On This Page ... Smallpox Vaccination and Adverse Cardiac Events. Volume 10, Number 5-May 2004 ... that cardiac deaths observed in 2003 might have been unrelated to smallpox vaccination." While the causes of these cardiac or ... Cardiac deaths after a mass smallpox vaccination campaign-New York City, 1947. MMWR Morb Mortal Wkly Rep. 2003;52:933-6.PubMed ...
Eastern Mediterranean Health Journal , All issues , Volume 22, 2016 , Volume 22, issue 1 , Meals served to hypertensive and ... Meals served to hypertensive and cardiac inpatients in Jordan: comparison with WHO and NIH dietary guidelines ... Meals provided to cardiac inpatients in Jordan need to be revised to meet the guidelines specified for the health conditions of ... Meals served to hypertensive and cardiac patients have not previously been evaluated in Jordan. The results of this study will ...
... and compare this to the myocardial volume ratio by Cardiac Magnetic Resonance (CMR). ... The purpose of this study is to evaluate the standard Myocardial Blood Volume Measurement (MBV) by Real-Time Myocardial ... Myocardial Blood Volume Measurement by Real-Time Myocardial Perfusion Echocardiography Correlates to Myocardial Compressibility ...
... analysis of 48 570 cardiac cycles. British journal of anaesthesia. 2021 Aug;127(2):e60-e63. doi: 10.1016/j.bja.2021.05.007 ... Carotid Doppler ultrasonography correlates with stroke volume in a human model of hypovolaemia and resuscitation: analysis of ... Carotid Doppler ultrasonography correlates with stroke volume in a human model of hypovolaemia and resuscitation : analysis of ... Carotid Doppler ultrasonography correlates with stroke volume in a human model of hypovolaemia and resuscitation : analysis of ...
Cardiac. 12. 10. 10. 11. 13. 18. Figure 2. Grouped respiratory and cardiac procedures by asthma diagnosis position, North ...
... ... Characterization of incidental cardiac masses in oncological patients using a new CT-based tumor volume perfusion technique. ...
Extracorporeal membrane oxygenation for pediatric cardiac failure: Review with a focus on unique subgroups ... Volume / Issue. *43 / Start / End Page. *105 - 111. Electronic International Standard Serial Number (EISSN) * 1558-1519 ... The use of ECMO in infant and pediatric cardiac failure continues to increase over the last decade with 51% survival to ... Extracorporeal membrane oxygenation for pediatric cardiac failure: Review with a focus on unique subgroups Journal Article ( ...
Volume 22, Number 6-June 2016 Research. Transmission of Mycobacterium chimaera from Heater-Cooler Units during Cardiac Surgery ... Video image captures showing effect of heater-cooler unit orientation on smoke dispersal in a cardiac surgery room and ... Transmission of Mycobacterium chimaera from Heater-Cooler Units during Cardiac Surgery despite an Ultraclean Air Ventilation ... transmission of Mycobacterium chimaera during cardiac surgery despite an ultraclean air ventilation system. The device was ...
Blood volume studies in edematous children. III. Cardiac edema. Indian Journal of Medical Sciences. 1961 Feb; 15(): 124-8. ...
In cardiac MRI (CMR), an electrocardiogram (ECG) of... ... Journal volume & issue. Vol. 2, no. 1. pp. 255 - 258 Abstract. ... In cardiac MRI (CMR), an electrocardiogram (ECG) of the patient is required for triggering the image acquisition process. ... Real-time QRS detection using integrated variance for ECG gated cardiac MRI *Schmidt Marcus, ...
The present study was aimed at clarifying the protective mechanism of the QX1 formula on sepsis-induced cardiac dysfunction. ... Our previous study demonstrated that a traditional Chinese medicine formula, Qiang-Xin 1 (QX1), ameliorates cardiac tissue ... Treatment with the QX1 formula improved the 7-day survival outcome, attenuated cardiac dysfunction, and ameliorated the ... and Toll-like receptor signaling pathways may be involved in the protective effect of the QX1 formula on sepsis-induced cardiac ...
Cardiac disease. 11 (0.4). 24 (0.8). Baseline antimicrobial drug resistance¶. Monoresistance#. 301 (10.4). 260 (9.1). ... Volume 28, Number 3-March 2022 Research. Retrospective Cohort Study of Effects of the COVID-19 Pandemic on Tuberculosis ...
Anemia, high output arterial-venous dialysis accesses, pressure and volume overload (especially in anuric patients) might ... Foley, R. N. et al. Hypoalbuminemia, cardiac morbidity, and mortality in end-stage renal disease. J. Am. Soc. Nephrol. 7(5), ... MacRae, J. M. Vascular access and cardiac disease: is there a relationship?. Curr. Opin. Nephrol. Hypertens. 15(6), 577-582 ( ... Subclinical cardiac damage evaluation. EC evaluation was performed at T1 in all patients and at T12 in 75 individuals. All ...
Radiation exposure in cardiac imaging is a major healthcare concern and low-dose cardiac imaging has important implications for ... A low-dose comprehensive cardiac CT protocol assessing anatomy, function, perfusion, and viability. Author(s). ... We describe the application of a low-dose comprehensive cardiac computed tomography protocol that assesses anatomy, function, ...
Journal Volume: 11; Journal ID: ISSN 1664-042X. Publisher: Frontiers. Country of Publication: United States. Language: English ... Resolving Fine Cardiac Structures in Rats with High-Resolution Diffusion Tensor Imaging journal, July 2016 * Teh, Irvin; ... Electrophysiological Modeling of Cardiac Ventricular Function: From Cell to Organ journal, August 2000 * Winslow, R. L.; ... On the averaging of cardiac diffusion tensor MRI data: the effect of distance function selection journal, October 2016 * ...
Keywords: Cardiac, Rehabilitation, Exercise, Physical, Activity, Mean Platelet Volume, Blood Platelets, Coronary artery Disease ... Exercise-Based Cardiac Rehabilitation Has a Strong Relationship with Mean Platelet Volume Reduction. ... Background: Mean platelet volume (MPV), which is a simple measure of platelet activation, has recently become an interesting ... Exercise-based cardiac rehabilitation (CR) is a comprehensive intervention that decreases mortality-morbidity in patients with ...
Volume/Page: 16(7):777-81.. Type: Animal Study Categories: Heart, Acute Toxicity, Fluoride poisoning, Hyperkalemia, Potassium ... Sudden cardiac death from acute fluoride intoxication: the role of potassium.. Author: McIvor ME, Cummings CE, Mower MM, Wenk ... The mechanism of sudden cardiac death following acute fluoride intoxication has been thought to result from profound ... Acute fluoride intoxication increases intracellular calcium (Cai), manifested by increased twitch tension in cardiac muscle, ...
Blood loss reduces circulating volume, most often resulting in decreased preload, stroke volume, CO and MAP. In healthy ... bup: Bupivacaine; CD: Cesarean delivery; CI: Cardiac index; CO: Cardiac output; epi: Epinephrine; HB: Hyperbaric; IB: Isobaric ... This increase in cardiac preload typically results in an increase in CO through an increase in both HR and SV. A decrease in ... Table 2. Cardiac output measurements during epidural anesthesia for elective cesarean delivery.. Study (year). Measurement ...
PW367 The effect of insulin therapy algorithms on blood glucose levels in post-operative patients following cardiac surgery: A ... PW367 The effect of insulin therapy algorithms on blood glucose levels in post-operative patients following cardiac surgery: A ... PW367 The effect of insulin therapy algorithms on blood glucose levels in post-operative patients following cardiac surgery: A ...
Patients should be aware of possible cardiac toxicities & what to do about them. ... Lenihan says that future research on late cardiac effects in cancer survivors needs to include advanced cardiac imaging ... while at the same time exploring ways to prevent cardiac toxicity and identify those patients at risk for cardiac problems. ... is reversible with improvement in cardiac function following drug discontinuation or treatment with cardiac medications. ...
Median (range) values for the most important cardiac measurements were 170 (153-193) mm for cardiac height, 135 (122-146) mm ... for cardiac width, 9 (8-9) for vertebral heart score, and 99 (69-124) mm for cardiosternal contact. All deer had a normal sinus ... Volume/Issue: Volume 83: Issue 2 Online Publication Date: 25 Nov 2021 ... In the right lateral projection, the cardiac height (base to apex) and cardiac width (cranial to caudal) were measured (Figure ...
Cardiac Pulmonic Balance.-A Clinical Study By Benjamin Ward Richardson. Delmas' Hot Air Burner ...
... and crystalloid-based volume regimes in cardiac surgery: a retrospective analysis ...
Clinic of Cardiac Surgery No 1, Silesian Medical University, Independent Public Clinical Hospital No 7, Katowice ... Clinic of Cardiac Surgery No 1, Silesian Medical University, Independent Public Clinical Hospital No 7, Katowice ... Influence of the cardiac rehabilitation on regular physical activity after coronary artery bypass grafting. ... Cardiac Rehabilitation following percutaneous revascularization, heart transplant, heart valve surgery, and for chronic heart ...
Sternal dehiscence is an important complication of cardiac surgery. A simple mathematical analysis is described for determining ... The strength of the closure (S) is the ratio of the volume of sternum which the dehiscence force acts upon to the dehiscence ... Keywords: Sternum, cardiac surgery, surgical wound dehiscence. Journal: Bio-Medical Materials and Engineering, vol. 18, no. 1, ... A mathematical analysis of alternative sternal wound closures - An aid to reducing cardiac surgical mortality Article type: ...
Cardiac system. * Decreased cardiac output. * Increased plasma volume. * Organ blood flow. * Tissue perfusion ...
Center Volume Impacts Readmissions and Mortality after Congenital Cardiac Surgery. Center Volume Impacts Readmissions and ... Increased congenital cardiac surgery volume is associated with improved mortality, reduced duration of hospitalization, 30-day ... Hospitais com Alto Volume de Atendimentos / Hospitais com Baixo Volume de Atendimentos / Cardiopatias Congênitas / ... Hospitais com Alto Volume de Atendimentos / Hospitais com Baixo Volume de Atendimentos / Cardiopatias Congênitas / ...
The right ventricular (RV) end-diastolic volume index (EDVI) is of great value when assessing RV function. RV EDVI-the volume ... Right Ventricular End-Diastolic Volume Index. Quantifying Right Ventricular (RV) End-Diastolic Volume Index (EDVI) ... the total LV volume at end diastole. (For further details about how to quantify LV EDVI, please see End-Diastolic Volume Index ... RV EDVI is employed in cardiac MRI analysis to indicate the extent, if any, to which the RV may be enlarged or shrunken:. Tb. ...
Volume. 144. Issue. S2. ISSN. 0009-7322. DOIs. *https://doi.org/10.1161/circ.144.suppl_2.12464 ... Signs of Life as a Predictor of Survival in Patients With Out-of-Hospital Cardiac Arrest and Long Low-Flow Times. Research ...
... ontogeny of cardiac physiology and aerobic metabolism in the red swamp crayfish Procambarus Clarkii ... Cardiac development in crayfish: ontogeny of cardiac physiology and aerobic metabolism in the red swamp crayfish Procambarus ... Cardiac development in crayfish: ontogeny of cardiac physiology and aerobic metabolism in the red swamp crayfish Procambarus ... Cardiac development in crayfish: ontogeny of cardiac physiology and aerobic metabolism in the red swamp crayfish Procambarus ...
  • ABSTRACT This study aimed to evaluate the compliance of daily meals served to hypertensive and cardiac inpatients in Jordan according to WHO guidelines and the Therapeutic Lifestyle Changes (TLC) and Dietary Approach to Stop Hypertension (DASH) diets plans. (who.int)
  • abstract = "Reversible post-translational protein modifications such as SUMOylation add complexity to cardiac transcriptional regulation. (monash.edu)
  • abstract = "Background - Prolongation of the action potential duration (APD) and decreased transient outward K+ current (Ito] have been consistently observed in cardiac hypertrophy. (elsevier.com)
  • Cardiac dysfunction is a critical manifestation of sepsis-induced multiorgan failure and results in the high mortality of sepsis. (hindawi.com)
  • The present study was aimed at clarifying the protective mechanism of the QX1 formula on sepsis-induced cardiac dysfunction. (hindawi.com)
  • Treatment with the QX1 formula improved the 7-day survival outcome, attenuated cardiac dysfunction, and ameliorated the disruption of myocardial structure in septic mice. (hindawi.com)
  • The integrating pathway analysis indicated the calcium, PI3K/AKT, MAPK, and Toll-like receptor signaling pathways may be involved in the protective effect of the QX1 formula on sepsis-induced cardiac dysfunction. (hindawi.com)
  • The present study demonstrated the multicomponent, multitarget, and multipathway characteristics of the QX1 formula and provided a novel understanding of the QX1 formula in the clinical application on cardiac dysfunction-related diseases. (hindawi.com)
  • Cardiac dysfunction is critical to sepsis-induced multiorgan failure. (hindawi.com)
  • Cardiac dysfunction occurs in over 40% of sepsis patients, which is associated with high mortality and poor prognosis [ 3 ]. (hindawi.com)
  • Despite improvements in antibiotic therapies and critical care techniques, the management of cardiac dysfunction in patients with sepsis remains challenging since basic interventions for cardiac dysfunction or sepsis alone are contradictory in key areas, including fluid resuscitation [ 4 ]. (hindawi.com)
  • The pathological mechanisms of cardiac dysfunction in sepsis are multifactorial, including inflammatory mediator disorder, mitochondrial dysfunction, apoptosis, and calcium regulation disorder [ 5 , 6 ]. (hindawi.com)
  • Therefore, developing a drug that can inhibit these pathological changes would be of great clinical significance for the prevention of sepsis-induced cardiac dysfunction. (hindawi.com)
  • However, a holistic understanding underlying mechanisms of the QX1 formula in improving sepsis-induced cardiac dysfunction still is needed in further study. (hindawi.com)
  • Furthermore, Res ameliorated isoprenaline‑induced cardiac hypertrophy, significantly improving cardiac dysfunction in vivo experiment (echocardiography, the degree of ventricular hypertrophy, etc. (spandidos-publications.com)
  • The size and functioning of the heart's right ventricle can indicate signs of cardiac dysfunction, including pulmonary embolism, pulmonary hypertension and right heart failure. (dotmed.com)
  • Cardiac dysfunction is a major concern after trauma-hemorrhage, and increased IL-6 is one of the underlying causes for producing the dysfunction. (uthscsa.edu)
  • It is a systemic disease defined as a cardiac dysfunction that causes insufficient blood supply to meet tissue metabolic needs, under normal pulmonary venous return, or only after high filling pressures(1). (bvsalud.org)
  • The purpose of this study is to evaluate the standard Myocardial Blood Volume Measurement (MBV) by Real-Time Myocardial Perfusion Echocardiography (RTMPE) and compare this to the myocardial volume ratio by Cardiac Magnetic Resonance (CMR). (mayo.edu)
  • We describe the application of a low-dose comprehensive cardiac computed tomography protocol that assesses anatomy, function, perfusion and viability with correlations to invasive coronary angiography and magnetic resonance imaging. (sinapse.ac.uk)
  • OBJECTIVES: Evaluate function, perfusion and myocardial viability parameters using cardiac magnetic resonance imaging techniques in patients with hypertrophic cardiomyopathy, comparing groups with or without obstructions in the left ventricular outflow tract. (usp.br)
  • Gated myocardial perfusion SPECT has been used to calculate ejection fraction (EF) and end-diastolic volume (EDV) and has correlated well with conventional methods. (elsevier.com)
  • Four kinds of software, Quantitative Gated SPECT (QGS), the Emory Cardiac Toolbox (ECT), 4D-MSPECT, and Perfusion and Functional Analysis for Gated SPECT (pFAST) were used to compute EF and EDV, and the results were analyzed by multiple comparisons tests. (elsevier.com)
  • Although good correlation was observed among the 4 software packages, QGS, ECT, and 4D-MSPECT overestimated EF in patients with small hearts, and pFAST overestimated the true volume in patients with large perfusion defects. (elsevier.com)
  • OBJECTIVES: Surviving long lasting cardiac arrest following accidental hypothermia has been reported after treatment with extra corporeal life support (ECLS), but there is a risk of neurologic injury. (aau.dk)
  • Theoretically, accidental hypothermic cardiac arrest may in itself contribute to polyneuropathy. (aau.dk)
  • This study was designed to examine the impact of three hours of cardiac arrest at a core temperature of 20°C followed by reanimation of peripheral nerve function. (aau.dk)
  • RESULTS: The ulnar nerve was cooled from 34.9±1.6°C to 12.8±3.8°C and the vagus nerve from 36.2±1.2°C to 15.4±1.4°C. Physiologic function of both somatic and autonomic nerves were strongly affected by cooling, but recovered to almost normal levels during rewarming, even after three hours of hypothermic cardiac arrest. (aau.dk)
  • P-potassium rose from 3.9 (3.6-4.6)mmol/l to 8.1 (7.2-9.1)mmol/l after three hours of cardiac arrest, but normalized after recirculation. (aau.dk)
  • There was no rise in serum-neuron-specific enolase, but a slight rise in S100b protein during three hours of hypothermic cardiac arrest was observed. (aau.dk)
  • CONCLUSIONS: Reanimation after three hours of hypothermic cardiac arrest using ECLS was possible with no or, if present, minor damage to the two nerves tested. (aau.dk)
  • This study was designed to examine the impact of three hours of cardiac arrest at a core temperature of 20°C followed by reanimation of peripheral nerve function.METHODS: Seven pigs were cannulated for ECLS and cooled to a core temperature of 20°C followed by three hours of circulatory arrest where the extremities were packed with ice. (aau.dk)
  • Hypoxic ischemic encephalopathy (HIE) is a severe consequence of cardiac arrest (CA) representing a substantial diagnostic challenge. (helsinki.fi)
  • Purpose/Aims: Despite advances in healthcare, the incidence of in-hospital cardiac arrest (IHCA) has continued to rise for the past decade. (nursingcenter.com)
  • Romano-ward syndrome is an autosomal dominant disorder characterized by prolonged QT interval, which may present with cardiac events such as syncope, cardiac arrest and sudden death in healthy children. (pediatriconcall.com)
  • Out-of-hospital cardiac arrest (OOHCA) causes 60,000 UK and 300,000 US deaths each year. (biomedcentral.com)
  • Good outcome was associated with a shockable rhythm on presentation, cardiac cause, arrest occurring in daylight hours (08:00 to 20:00) and shorter time between collapse and ROSC. (biomedcentral.com)
  • Context: The LUCAS mechanical chest compression device may be better than manual chest compression during resuscitation attempts after cardiac arrest. (warwick.ac.uk)
  • In conclusion, Res inhibited cardiac hypertrophy via downregulation of the apoptosis signaling pathway and upregulating the autophagy pathway. (spandidos-publications.com)
  • RV EDVI-the volume of blood in the RV at end load filling indexed for body surface area (ml/m 2 )-may be quantified, either manually or automatically, using cardiac magnetic resonance imaging (MRI) software. (cardiacmri.com)
  • There remains a debate whether the ventricular volume within prolapsing mitral valve (MV) leaflets should be included in the left ventricular (LV) end-systolic volume, and therefore factored in LV stroke volume (SV), in cardiac magnetic resonance (CMR) assessments. (uea.ac.uk)
  • Myocardial tagging is based on magnetic resonance imaging and allows us to label specific myocardial regions for imaging cardiac motion (rotation, translation and radial displacement). (elsevier.com)
  • Correlating both Aldrich and Hellemond score with cardiac magnetic resonance imaging endocardial surface area calculations in the estimation of the area at risk. (maastrichtuniversity.nl)
  • From the admission ECG the Aldrich and Selvester scores were measured and the combined Hellemond score was calculated and correlated with the Cardiac Magnetic Resonance (CMR) estimated endocardial surface area (ESA) using the Spearman coefficient. (maastrichtuniversity.nl)
  • Among them, left ventricular hypertrophy (LVH), a marker of subclinical cardiac damage, is highly prevalent in CKD patients and has a strong impact in increasing their CVR 4 . (nature.com)
  • Using a minimally invasive transverse aortic banding (MTAB) mouse model of cardiac hypertrophy, we have assessed fibrosis and cardiac fibroblast proliferation. (qub.ac.uk)
  • These results are the first to show selective upregulation of CaMKIIδ in adult cardiac fibroblasts following cardiac hypertrophy and to assign a previously unrecognised role to CaMKII in regulating adult cardiac fibroblast function in normal and diseased hearts. (qub.ac.uk)
  • However, the mechanisms by which Res ameliorates cardiac hypertrophy have not yet been fully elucidated. (spandidos-publications.com)
  • In the present study, network pharmacology was used to construct a network and perform enrichment analysis to evaluate the effect of Res on cardiac hypertrophy. (spandidos-publications.com)
  • A total of 444 targets associated with cardiac hypertrophy and 229 potential disease‑associated targets of Res were identified, from which 8 overlapping genes were demonstrated. (spandidos-publications.com)
  • The autophagy inhibitor 3‑MA markedly reversed the anti‑cardiac hypertrophy effects of Res. (spandidos-publications.com)
  • Therefore, it is necessary to determine factors offering a protective effect against cardiac hypertrophy to decrease the incidence of heart failure and subsequent mortality. (spandidos-publications.com)
  • The present study evaluated the pharmacological action of Res in cardiac hypertrophy using network pharmacology and animal experiments. (spandidos-publications.com)
  • Res targets associated with cardiac hypertrophy were integrated to establish a multi-target network. (spandidos-publications.com)
  • Background - Prolongation of the action potential duration (APD) and decreased transient outward K + current (I to ] have been consistently observed in cardiac hypertrophy. (elsevier.com)
  • The relation between electrical remodeling and cardiac hypertrophy in vivo is unknown. (elsevier.com)
  • AS rats infected with Ad.β-gal developed cardiac hypertrophy compared with sham rats, as assessed by cellular capacitance and heart weight-body weight ratio. (elsevier.com)
  • Conclusions - Downregulation of I to , APD prolongation, and cardiac hypertrophy occur early after AS, and in vivo gene transfer of Kv4.3 can restore these electrical parameters and abrogate the hypertrophic response via the calcineurin pathway. (elsevier.com)
  • JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY publishes original research studies and reviews of applied science and clinical research, in the field of interventional techniques and therapies for the management of cardiac arrhythmias. (periodicals.com)
  • Founded in 1979, HRS is a leading resource on cardiac pacing and electrophysiology. (hrsonline.org)
  • Background: Mean platelet volume (MPV), which is a simple measure of platelet activation, has recently become an interesting topic in cardiovascular research. (erdogan.edu.tr)
  • As echo is the first imaging triage modality used for scanning suspected heart issues, this study validated the potential of adding AI as part of our cardiac ultrasound workflow," said Dr. Martin Goldman, a cardiovascular disease specialist at Mount Sinai and one of the authors of the study, in a statement. (dotmed.com)
  • These data suggested that removal of sympathetic cardiac influence improved cardiovascular stability as indicated by a diminished LF ABP variability, which was related to an enhanced cardiac responsiveness. (unthsc.edu)
  • Additionally, cases of coronary artery disease, including myocardial infarction and cardiac death, were reported in the weeks after vaccination although no causal link has been established. (cdc.gov)
  • Exercise-based cardiac rehabilitation (CR) is a comprehensive intervention that decreases mortality-morbidity in patients with coronary artery disease (CAD). (erdogan.edu.tr)
  • Video image captures showing effect of heater-cooler unit orientation on smoke dispersal in a cardiac surgery room and transmission of Mycobacterium chimaera during cardiac surgery despite an ultraclean air ventilation system. (cdc.gov)
  • Cardiac Rehabilitation following percutaneous revascularization, heart transplant, heart valve surgery, and for chronic heart failure. (edu.pl)
  • Sternal dehiscence is an important complication of cardiac surgery. (iospress.com)
  • Center Volume Impacts Readmissions and Mortality after Congenital Cardiac Surgery. (bvsalud.org)
  • Division of Cardiac Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA. (bvsalud.org)
  • To characterize the relationship between surgical volume and postoperative outcomes in congenital heart surgery , we used a national cohort to assess the costs , readmissions, and complications in children undergoing cardiac operations. (bvsalud.org)
  • The Nationwide Readmissions Database was used to identify pediatric patients (≤18 years) undergoing congenital cardiac surgery from 2010 to 2017. (bvsalud.org)
  • Increased congenital cardiac surgery volume is associated with improved mortality , reduced duration of hospitalization , 30-day readmissions, and resource use. (bvsalud.org)
  • These findings demonstrate the inverse relationship between hospital volume and resource use and may have implications for the centralization of care for congenital cardiac surgery . (bvsalud.org)
  • IMPORTANCE The left atrial appendage is a key site of thrombus formation in atrial fibrillation (AF) and can be occluded or removed at the time of cardiac surgery. (northwestern.edu)
  • OBJECTIVE To evaluate the association of S-LAAO vs no receipt of S-LAAO with the risk of thromboembolism among older patients undergoing cardiac surgery. (northwestern.edu)
  • DESIGN, SETTING, AND PARTICIPANTS Retrospective cohort study of a nationally representative Medicare-linked cohort from the Society of Thoracic Surgeons Adult Cardiac Surgery Database (2011-2012). (northwestern.edu)
  • Patients aged 65 years and older with AF undergoing cardiac surgery (coronary artery bypass grafting [CABG], mitral valve surgery with or without CABG, or aortic valve surgery with or without CABG) with and without concomitant S-LAAO were followed up until December 31, 2014. (northwestern.edu)
  • CONCLUSIONS AND RELEVANCE Among older patients with AF undergoing concomitant cardiac surgery, S-LAAO, compared with no S-LAAO, was associated with a lower risk of readmission for thromboembolism over 3 years. (northwestern.edu)
  • Cardiac surgery of premature and low birthweight newborns: Is a change of fate possible? (elsevier.com)
  • From January 2005 to December 2008, 33 consecutive LBW neonates underwent cardiac surgery in our clinic in keeping with the criteria for choice of surgery. (elsevier.com)
  • Internists, infectious disease specialists, cardiologists, cardiothoracic surgeons, and other clinicians should suspect NTM infections among patients who have signs of infection and a history of open-chest cardiac surgery. (cdc.gov)
  • Massive hemorrhage, defined as blood loss in excess of one circulating volume within a 24-hour period, is a major cause of mortality after trauma or surgery. (medscape.com)
  • The most important step in managing bleeding during surgery is maintaining adequate intravascular volume. (medscape.com)
  • Those who experience pre-existing or current active cardiac disease, orthopedic surgery or cardiac surgery have been initially shown to have higher risk and mortality with more restricted transfusion goals. (criticalcarenow.com)
  • IMSEAR at SEARO: Does Parsonnet scoring model predict mortality following adult cardiac surgery in India. (who.int)
  • Aims and Objectives: To validate the Parsonnet scoring model to predict mortality following adult cardiac surgery in Indian scenario. (who.int)
  • Materials and Methods: A total of 889 consecutive patients undergoing adult cardiac surgery between January 2010 and April 2011 were included in the study. (who.int)
  • Concurrent with this request, the Ponce School of Medicine (PSM), led by President and Dean Dr. Manuel Martínez Maldonado, had begun a more definitive study of possible cardiac abnormalities among Vieques residents. (cdc.gov)
  • Purpose: Several side effects of intravenous immunoglobulin G (IVIG) therapy are known, but it has never been reported to be associated with cardiac rhythm abnormalities other than sinus tachycardia. (cmich.edu)
  • Conclusion: Cardiac rhythm abnormalities may be exacerbated in individuals with preexisting cardiac problems by IVIG infusion, and such patients should be monitored closely during IVIG administration. (cmich.edu)
  • If cardiac gating is correct and arrhythmias are absent, the same end-diastolic phase should be selected for each short-axis slice ( Fig.2 ). (cardiacmri.com)
  • 160) have an increased risk for a major adverse cardiac event. (medscape.com)
  • At RSNA 2021, DiA Imaging Analysis touted the recent validation of its AI-based ultrasound software, LVivo RV, in an independent study comparing it to cardiac MR for Right Ventricle Function (RVF) analysis. (dotmed.com)
  • His disease progressed in early 2021, with increased spleen volume and progressive thrombocytopenia. (ajmc.com)
  • The findings were published in Circulation Magazine , Volume 144, Issue 1. (dotmed.com)
  • Wang, X, Levi, AJ & Halestrap, AP 1994, ' Stoichiometry of the lactate carrier in isolated rat and guinea-pig cardiac myocytes assessed by measuring changes of intracellular pH with BCECF ', Journal of Physiology , vol. 476, pp. 15 - 15. (bris.ac.uk)
  • Journal of Cardiac Failure. (elsevier.com)
  • Spectrofluorometric analysis of length-dependent conformational changes in cardiac troponin C . Journal of Muscle Research and Cell Motility , 23 (4), 309-315. (ntnu.edu.tw)
  • Liou, YM , Tseng, YC & Cheng, JC 2002, ' Spectrofluorometric analysis of length-dependent conformational changes in cardiac troponin C ', Journal of Muscle Research and Cell Motility , vol. 23, no. 4, pp. 309-315. (ntnu.edu.tw)
  • We present this case because of rarity of this condition and index child presenting as cardiac asystole, who had survived with cardiopulmonary resuscitation and is symptom-free on atenolol therapy. (pediatriconcall.com)
  • Mice were killed at 2 h after resuscitation, and cardiac IL-6, HIF-1α, and nuclear factor (NF) κB activities were measured. (uthscsa.edu)
  • The program includes 19 cardiac rhythm specialists and care for over 6,000 AF patients annually, with AF ablation volumes over 2,000 per year. (sleepreviewmag.com)
  • This specialty organization represents medical, allied health, and science professionals from more than 70 countries who specialize in cardiac rhythm disorders. (hrsonline.org)
  • The mechanisms regulating cardiac fibroblast proliferation remain poorly understood. (qub.ac.uk)
  • In this study, we performed a literature review in order to investigate the relationship between auditory mechanisms and cardiac autonomic regulation. (bvsalud.org)
  • Patients and Methods: We describe the development of cardiac dysrhythmias during intravenous immunoglobulin G infusion in two children with thrombocytopenia. (cmich.edu)
  • Volume overload: Mainly concerned in elderly, pediatrics and those with reduced cardiac function. (criticalcarenow.com)
  • The right ventricular (RV) end-diastolic volume index (EDVI) is of great value when assessing RV function. (cardiacmri.com)
  • We compared LV SV with (LV SVMVP) and without (LV SVstandard) MVP left ventricular doming volume, using 4D flow (LV SV4DF) as the reference value. (uea.ac.uk)
  • Calculating LV SV by including the MVP left ventricular doming volume has a higher consistency with LV SV derived from the 4DF assessment. (uea.ac.uk)
  • Hence, in cases with bi-leaflet MVP, we recommend factoring in MVP dooming into the left ventricular end-systolic volume to improve the accuracy and precision of quantifying mitral regurgitation. (uea.ac.uk)
  • cardiac rate and left ventricular mass. (usp.br)
  • It is known that CaMKIIδ plays a central role in cardiac myocyte contractility, but nothing is known of its role in adult cardiac fibroblast function. (qub.ac.uk)
  • Goldman Aslan says that DiA's software is not only helpful for assessing right ventricle function in severe cardiac patients, but also those with COVID. (dotmed.com)
  • The wringing motion of the myocardium might be an important mechanism involved in maintaining normal cardiac function with minimal expenditure of energy. (elsevier.com)
  • That is the reason why, in some cases, patients are clinically compensated (not necessarily due to the effect of drugs), besides having significant impairment of cardiac function. (vin.com)
  • Thus, a method for cardiac patient classification which considers quantitative data of the cardiac function, based on echocardiographic examination, could result in more accurate prognostic information. (vin.com)
  • These results indicate that the beneficial effects of estrogen on cardiac function after trauma-hemorrhage seem to be mediated by the inhibition of HIF-1α expression and activity. (uthscsa.edu)
  • Previous studies have suggested that sympathetic cardiac blockade enhances baroreflex function, whereas parasympathetic blockade diminishes baroreflex sensitivity and elicits arterial blood pressure (ABP) instability. (unthsc.edu)
  • Heart health supplements Ozone Park, USA can improve cardiac function in patients with coronary heart disease and provides improvement in blood flow. (ayurvedmarketplace.com)
  • After initial improvements in cardiac function, lung function, radiological findings, ventilation and oxygenation needs, and overall shock state, the patient was weaned off of VV-ECMO at day 5 of ICU admission. (ajmc.com)
  • Cardiac resynchronization therapy (CRT) is one of the most effective therapies for heart failure with reduced ejection fraction and leads to improved quality of life, reductions in heart failure hospitalization rates and reduces all‐cause mortality. (aston.ac.uk)
  • Patients should be aware of possible cardiac toxicities & what to do about them. (curetoday.com)
  • Rat Cardiac Troponin Ⅰ (cTn-Ⅰ) ELISA kit is Available at Gentaur Genprice with the fastest delivery. (joplink.net)
  • CusabioHuman cardiac troponin Ⅰ, cTn-ⅠELISA Kit is Available at Gentaur Genprice with the fastest delivery.Online Order Payment is possible or. (joplink.net)
  • Recently, it has been shown that length-dependent changes in SH reactivity of cardiac troponin C (cTnC) occurred in association with cross-bridge attachment and Ca 2+ . (ntnu.edu.tw)
  • Dive into the research topics of 'Spectrofluorometric analysis of length-dependent conformational changes in cardiac troponin C'. Together they form a unique fingerprint. (ntnu.edu.tw)
  • Increased adult cardiac fibroblast proliferation results in an increased collagen deposition responsible for the fibrosis accompanying pathological remodelling of the heart. (qub.ac.uk)
  • What is a normal cardiac output? (healthlinkbc.ca)
  • A healthy heart with a normal cardiac output pumps about 5 to 6 litres of blood every minute when a person is resting. (healthlinkbc.ca)
  • During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. (healthlinkbc.ca)
  • In addition, eight patients had a primary cardiac malignant lesion: angiosarcoma, leiomyosarcoma, and malignant fibrous histiocytoma in two patients each and sarcoma (not otherwise specified) and osteogenic sarcoma in one patient each. (umn.edu)
  • However, atypical cases of primary cardiac amyloidosis should be reevaluated in light of these findings. (elsevier.com)
  • Dr. Scott Pham is a cardiologist and cardiac electrophysiologist, specializing in studying the electrical activity of the heart. (sanfordhealth.org)
  • Our previous study showed that the TCM prescription Qiang-Xin 1 (QX1) ameliorates cardiac tissue damage in mice suffering from sepsis partly by inhibiting endoplasmic reticulum- and mitochondria-related apoptosis [ 7 ]. (hindawi.com)
  • This study aims to compare LV volumes during end-systolic phases, with and without the inclusion of the volume of blood on the left atrial aspect of the atrioventricular groove but still within the MV prolapsing leaflets, against the reference LV SV by four-dimensional flow (4DF). (uea.ac.uk)
  • Blood loss reduces circulating volume, most often resulting in decreased preload, stroke volume, CO and MAP. (medscape.com)
  • Your stroke volume is the amount of blood your heart pumps each time it beats, and your heart rate is the number of times your heart beats per minute. (healthlinkbc.ca)
  • Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps. (healthlinkbc.ca)
  • The amount of blood ejected from a ventricle at each beat is STROKE VOLUME . (bvsalud.org)
  • The incidence of adverse cardiac events related to smallpox vaccinations administered during the National Smallpox Vaccination Program (NSVP) in 2003 has received widespread attention. (cdc.gov)
  • At this time, adverse cardiac events associated with the vaccine, particularly myo- or pericarditis, are still of concern. (cdc.gov)
  • The use of ECMO in infant and pediatric cardiac failure continues to increase over the last decade with 51% survival to discharge. (duke.edu)
  • The focus of this review is to provide clinicians with a better understanding of the evolving indications, implementation, complications, outcomes and utilization in unique subgroups of pediatric cardiac ECMO patients. (duke.edu)
  • In this study skinned porcine cardiac fibers were reacted with 7-diethylamino-3-[4′maleimidylphenyl]-4-methylcoumarin (CPM). (ntnu.edu.tw)
  • Methods: Mathematic phantoms of cylindric-hemispheric hybrid models, ranging in volume from 34 to 266 mL, were generated. (elsevier.com)
  • Multivariable regression models adjusting for patient and hospital characteristics were used to study the impact of volume on 30-day nonelective readmission, mortality , home discharge, and resource use. (bvsalud.org)
  • After adjustment for key clinical factors, each decile increase in volume was associated with a 25% relative decrease in the odds of mortality , a 14% decrease in the odds of nonhome discharge, and a 4% relative decrease in the likelihood of 30-day nonelective readmission. (bvsalud.org)
  • Radiation exposure in cardiac imaging is a major healthcare concern and low-dose cardiac imaging has important implications for patients. (sinapse.ac.uk)
  • In 2009, he cofounded the International Cardioncology Society (ICOS) with a goal to promote training and study in the field of cardiac implications of cancer treatments. (curetoday.com)
  • In this scenario, at a hypothetical incidence of 10 per million, from 21 to 64 of the 1,545 cardiac deaths (1.4% to 4.1%, respectively) would have been caused by the vaccine. (cdc.gov)
  • Sudden cardiac death from acute fluoride intoxication: the role of potassium. (fluoridealert.org)
  • The mechanism of sudden cardiac death following acute fluoride intoxication has been thought to result from profound hypocalcemia produced by the precipitation of calcium fluoride salts. (fluoridealert.org)
  • The findings of this study should be acknowledged by electromechanical models of the heart that simulate the specific cardiac pathology. (osti.gov)
  • People who have survived cancer are at risk for a number of cardiac long-term and late effects linked to radiation and chemotherapy treatments, ranging from high blood pressure on one end of the spectrum to congestive heart failure on the other. (curetoday.com)
  • In the past two decades, as these issues have come to light, patients with Hodgkin disease, as well as others receiving radiation treatments, now receive lower total doses of radiation, smaller doses given more often (hyperfractionation), cardiac shielding and education about following a heart-healthy lifestyle. (curetoday.com)
  • Of the chemotherapy agents with cardiac toxicities, anthracyclines (particularly doxorubicin) have been studied most, and it appears that 1 percent of all cardiomyopathy cases (a weakening of the heart muscle, which can lead to heart failure) are linked to their use. (curetoday.com)
  • Cardiac output is the term that describes the amount of blood your heart pumps each minute. (healthlinkbc.ca)
  • Generally speaking, your heart beats both faster and stronger to increase cardiac output during exercise. (healthlinkbc.ca)
  • Heart, Volume 98 (Number 12). (warwick.ac.uk)
  • Microfibrils-small, ubiquitous components of the extracellular matrix in many tissues-generally have not been recognized as causing infiltrative heart disease, except in a group of cardiac transplant patients treated with cyclosporin. (elsevier.com)
  • Length modulation of cardiac muscle is manifested in the Frank-Starling relation of the heart. (ntnu.edu.tw)
  • The volume of the HEART , usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. (bvsalud.org)
  • Heart health supplements Ozone Park, USA are known to enhance 'cardiac capacity' and help in prevention of diseases such as hypertension, heart disease, etc. (ayurvedmarketplace.com)
  • Cardiac monitoring was initiated because of a transient episode of cyanosis in which a follow-up ECG showed no signs of congenital heart anomaly. (aacnjournals.org)
  • When does the body need a higher cardiac output? (healthlinkbc.ca)
  • Sufficient cardiac output helps keep blood pressure at the levels needed to supply oxygen-rich blood to your brain and other vital organs. (healthlinkbc.ca)
  • b) Define cardiac cycle and cardiac output. (bankofbiology.com)
  • A decrease in RV output leads to a decrease in LV filling, which results in decreased cardiac output. (medscape.com)
  • The body in all of its wonderful aspects will compensate for the fall in blood levels by increasing cardiac output (as long as that is not impaired) in order to increase oxygen delivery and extraction at the site of the tissues. (criticalcarenow.com)
  • Exercise-Based Cardiac Rehabilitation Has a Strong Relationship with Mean Platelet Volume Reduction. (erdogan.edu.tr)
  • Exercise-Based Cardiac Rehabilitation Ha. (erdogan.edu.tr)
  • Aims: evaluation of physical activity and the influence of outpatient cardiac rehabilitation on regular physical activity after surgical revascularization. (edu.pl)
  • The information concerning participation of the patients in outpatient cardiac rehabilitation was gathered during the first and second interview. (edu.pl)
  • 2. Participation in the outpatient cardiac rehabilitation was an essential factor for undertaking physical activity within 12 months after surgical revascularization. (edu.pl)
  • 3. There was no correlation between participation in outpatient cardiac rehabilitation before surgical revascularization and the total weekly energy expenditure related to physical activity. (edu.pl)
  • Alexander J. L., Wagner C. L. How cardiac rehabilitation relates to quality of life. (edu.pl)
  • The aim of this study was to determine the effect of PAI monitoring on the amount and/or intensity of physical activity for people in the maintenance phase of cardiac rehabilitation and to explore participants' perceptions of this approach. (edu.au)
  • Participants in the maintenance phase of cardiac rehabilitation monitored PAI for six weeks via a wearable physical activity monitoring device (WPAM). (edu.au)
  • This is especially true in the setting of cardiac or renal disease, where either hypervolemia or hypovolemia can create detrimental effects. (medscape.com)
  • In two-dimensional mode were studied the cardiac chambers, especially the left atrium, the appearance of the mitral valve, the presence of pericardial effusion, the transverse diameter of mitral annulus and aortic root (Thomas et al . (vin.com)
  • We believe that the subendocardial and interstitial deposition of microfibrils in these four symptomatic patients may represent a new type of infiltrative cardiomyopathy, similar to but distinct from cardiac amyloidosis. (elsevier.com)
  • We do not know yet if this disorder is genetic or acquired, or if the prognosis is better than that of cardiac amyloidosis. (elsevier.com)
  • Dr. Bosemani shared his perspectives on the current status of Cardiac Imaging in an email interview with us, which is reproduced below. (telradsol.com)
  • MR is considered the gold standard for cardiac imaging, and while common, RVF analysis via ultrasound is often difficult due to the RV's location and frequently requires additional examinations to ensure results are accurate. (dotmed.com)
  • Quantitative study conducted in a cardiac emergency service of a university of Pernambuco, between October 2014 and February 2015. (bvsalud.org)
  • It provides user-defined hangings, including specific display per organ and/or pathology, kinetics and curves analysis, ROI, statistics, ratios and histograms, multiple series fusion, semi-automatic volume segmentation, volume rendering and follow-up options. (medical.canon)
  • This finding suggests that cardiac risk factors should be assessed and aggressively managed-starting at the time of radiation treatment (or even before) and continuing throughout survivorship. (curetoday.com)
  • Suppose that the 1947 smallpox vaccine indeed caused serious cardiac disease, including myopericarditis and myocardial infarctions, with 10 fatal cases per million. (cdc.gov)
  • Kern MJ, Seto AH, Herrmann J. Invasive hemodynamic diagnosis of cardiac disease. (medlineplus.gov)
  • PAI may be a viable strategy to assist people with cardiac disease maintain physical activity adherence. (edu.au)