evaluation of left ventricular systolic function

... the evaluation of left ventricular diastolic function in atrial fibrillation J Am Soc Echocardiogr 1999;12:927-31 105 Sohn DW, Kim YJ, Kim HC, Chun HG, Park YB, Choi YS Evaluation of left ventricular ... Redfield MM Determination of left ventricular filling pressure by Doppler echocardiography in patients with coronary artery disease: critical role of left ventricular systolic function J Am Coll Cardiol ... Teranishi J, Onozuka H, Takagi C, et al A new approach for evaluation of left ventricular diastolic function: spatial and temporal analysis of left ventricular filling flow propagation by color M-mode...

Ngày tải lên: 20/01/2016, 13:07

... Page of Association functional class (NYHA), blood data including signs of haemolysis, anticoagulation profile, assessment of cardiac rhythm and blood pressure and documentation of occurrence of ... of patients, left ventricular mass regression was similar in both groups at and 12 months, despite the superior hemodynamic performance of the pulmonary autografts Significant regression of left ... assess the regression of left ventricular hypertrophy Several authors have demonstrated that no difference in left ventricular mass regression is found between year and years of follow up [9,13,14]...

Ngày tải lên: 10/08/2014, 09:22

... http://ccforum.com/content/14/3/R101 Page of 11 Table 3: Distribution of perioperative variables according to the presence of post-CPB left ventricular dysfunction No LV dysfunction (n = 56) With LV dysfunction (n = 38) ... hypertrophy (PWT >11 mm), poor systolic LV function was found in 14% of patients (n = 12) whereas diastolic dysfunction was diagnosed in 84% of patients (n = 89), all of whom had Vp < 50 cm/s Regarding ... [24,37,38], below a threshold value of 50 cm/sec, Vp reliably detected all grades of diastolic dysfunction In addition, analysis of ROC curves indicated that a cut-off value of 40 cm/sec was helpful to...

Ngày tải lên: 13/08/2014, 20:22

... Hand Function Assessment involved (1) evaluation of functional discrepancy from normal subjects using the Melbourne Assessment of the Unilateral Upper Limb Function Test (MAULF) [7] and Functional ... that the components of the MAULF could not be analyzed individually, hence it would reflect the patient's level of dysfunction but not the etiology of dysfunction Review of current literature ... meet the study's objectives of generating a comprehensive description of upper limb deformity and hand function in the present population For practical evaluation of hand function in cerebral palsy...

Ngày tải lên: 20/06/2014, 01:20

... number of pairs of adjacent R–R intervals differing by more than 50 ms; RMSSD, square root of the mean of squares of differences between adjacent R–R intervals; SDANN, standard deviation of the ... the core analysis of the study was the longitudinal evaluation of autonomic function of each group, in which each subject served as his or her own • Cardiovascular autonomic function was impaired ... recovery of autonomic function after CABG in a similar manner to that of HRV, which demands relatively more complex analytical methods This might facilitate the application of autonomic evaluation...

Ngày tải lên: 12/08/2014, 20:21

... patients according to their baseline left ventricular systolic function Preserved LV systolic function (n = 27) Ultrafiltration (l) Mean BP (mmHg)a Altered LV systolic function (n = 10) 3.0 ± 1.2 2.8 ... aspect of the mitral ring, and variations were less pronounced in the presence of LV systolic dysfunction In contrast, Vp tended to decrease with preload reduction, regardless of LV systolic function ... Carlson RW: Left ventricular diastolic function in sepsis Crit Care Med 1990, 18:709-714 Poelaert J, Declerk C, Vogelaers D, Colardyn F, Visser CA: Left ventricular systolic and diastolic function...

Ngày tải lên: 13/08/2014, 03:20

... consisting of LV end diastolic Page 12 of 13 volume and the volume of surrounding structures; ESP: end systolic pressure; ESV: end systolic volume: in the present paper consisting of LV end systolic ... hypothermia-induced mild left ventricular cardiac failure Key messages • Cardiac left ventricular contractility decreases during surface cooling below 34°C • Cardiac systolic function is depressed ... and time matched normothermic controls (P ≤0.05) Page of 13 Figure Indexes of left ventricular diastolic function A Maximal deceleration of pressure in the cardiac cycle (dP/dtmin); B end diastolic...

Ngày tải lên: 14/08/2014, 07:21

... common predisposing cause of left ventricular thrombi, left ventricular thrombi can develop in any situation in which low flow occurs [14] In our study, all of the left ventricular thrombi were ... observations offer important information in an otherwise unknown topic such as that of left ventricular thrombosis in surgical patients; hence, the hypothesis of the high rates of left ventricular ... performed as a local standard of care for typical postoperative indications, including evaluation of left and right ventricular function, hypotension, pulmonary edema, diagnosis of pericardial effusion,...

Ngày tải lên: 14/08/2014, 07:21

... = left ventricular end-diastolic diameter; LVESD = left ventricular end -systolic diameter; LVEDV = left ventricular enddiastolic volume; LVESV = left ventricular end -systolic volume; LVEDP = left ... LVEDD = left ventricular end-diastolic diameter; LVEDV = left ventricular end-diastolic volume; LVEDP = left ventricular enddiastolic pressure; LVEF = left ventricular ejection fraction; PAs = systolic ... leads to leakage of the anatomically normal MV Following dilatation of the annular -ventricular apparatus, papillary muscle displacement, and an altered ventricular geometry, left ventricular volume...

Ngày tải lên: 10/08/2014, 10:20

... patients with severe left ventricular dysfunction J Thorac Cardiovasc Surg 2000, 119:550-557 Chamberlain MH, Ascione R, Reeves BC, Angelini GD: Evaluation of the effectiveness of off-pump coronary ... to the high risk of preoperative severely impaired LV function, the mortality is rather high for the series of patients Page of (page number not for citation purposes) Journal of Cardiothoracic ... for hemofiltration, which supports the finding of Vohra, et al [19] It has been proposed that the use of preoperative IABP may lead to minimization of low-flow episodes with avoidance of subsequent...

Ngày tải lên: 10/08/2014, 10:20

... G, Haggmark S, Biber B: Analysis of left ventricular systolic function during elevated external cardiac pressures: an examination of measured transmural left ventricular pressure during pressurevvolume ... End -systolic pressure–volume relationship The right ventricular End -systolic pressure–volume relationship end -systolic pressure (RV) versus the right ventricular end -systolic volume The end -systolic ... lung ventilation does not increase right ventricular afterload Intensive Care Med 2005, 31:s21 Carabello BA: Evolution of the study of left ventricular function: everything old is new again Circulation...

Ngày tải lên: 12/08/2014, 23:24

... prolongation of LV systole and a consecutively shortened LV diastole in patients with LBBB irrespective of the presence of left ventricular systolic dysfunction The absolute loss of diastolic ... measure of the degree of LV dyssynchrony Furthermore, the shortening of diastolic time is an often overlooked mechanism of cardiac dysfunction The duration of diastole is a principal determinant of ... descending limb of its function curve In this situation a prolongation of left ventricular ejection was demonstrated which may be viewed as a compensatory mechanism that serves to maintain left ventricular...

Ngày tải lên: 05/11/2012, 11:32

Ngày tải lên: 15/12/2013, 04:15

... Mathematical Methods of Physics, 2nd ed (Reading, MA: W.A Benjamin/Addison-Wesley), §2.3 [2] 5.2 Evaluation of Continued Fractions Continued fractions are often powerful ways of evaluating functions that ... examples are the sine function and the Bessel function of the first kind, 167 5.1 Series and Their Convergence number n − of terms directly, then apply the transformation to the rest of the series beginning ... large x Accelerating the Convergence of Series There are several tricks for accelerating the rate of convergence of a series (or, equivalently, of a sequence of partial sums) These tricks will...

Ngày tải lên: 15/12/2013, 04:15

... Mathematical Association of America), pp 59, 182–183 [synthetic division] 5.11 Economization of Power Series One particular application of Chebyshev methods, the economization of power series, is ... 198 Chapter Evaluation of Functions cnst=2.0/(b-a); fac=cnst; for (j=1;j

Ngày tải lên: 15/12/2013, 04:15

... Inverse of routine chebpc: given an array of polynomial coefficients d[0 n-1], returns an equivalent array of Chebyshev coefficients c[0 n-1] { int j,jm,jp,k; float fac,pow; pow=1.0; Will be powers of ... approximation in the interval of interest, by the methods of §5.8 We would have obtained just the same lower-order polynomial The principal lesson is that the rate of convergence of Chebyshev coefficients ... has nothing to with the rate of convergence of power series coefficients; and it is the former that dictates the number of terms needed in a polynomial approximation A function might have a divergent...

Ngày tải lên: 15/12/2013, 04:15

... that gives a means of evaluating (5.2.1) or (5.2.2) from left to right Let fn denote the result of evaluating (5.2.2) with coefficients through an and bn Then 5.2 Evaluation of Continued Fractions ... λan+1 (5.2.11) leaves the value of a continued fraction unchanged By a suitable choice of the scale factor λ you can often simplify the form of the a’s and the b’s Of course, you can carry out successive ... results is avoided by using both the ratios 172 Chapter Evaluation of Functions Manipulating Continued Fractions Several important properties of continued fractions can be used to rewrite them in...

Ngày tải lên: 15/12/2013, 04:15

... polynomial of degree n − (array of range [0 n-1]) by a monomial factor x − a by a bit of code like the following, 176 Chapter Evaluation of Functions Rational Functions You evaluate a rational function ... standard function available for doing the evaluation: double ratval(double x, double cof[], int mm, int kk) Given mm, kk, and cof[0 mm+kk], evaluate and return the rational function (cof[0] + cof[1]x ... Chapter Evaluation of Functions or p=c[j=n]; dp=0.0; while (j>0) {dp=dp*x+p; p=p*x+c[ j];} void ddpoly(float c[], int nc, float x, float pd[], int nd) Given the nc+1 coefficients of a polynomial of...

Ngày tải lên: 15/12/2013, 04:15

... trade@cup.cam.ac.uk (outside North America) (a + ib)(c + id) = (ac − bd) + i(bc + ad) 178 Chapter Evaluation of Functions Then the answer is w=0 w = 0, c ≥ w = 0, c < 0, d ≥ (5.4.7) w = 0, c < 0, d < Routines ... vol of The Art of Computer Programming (Reading, MA: Addison-Wesley) [see solutions to exercises 4.2.1.16 and 4.6.4.41] 5.5 Recurrence Relations and Clenshaw’s Recurrence Formula Many useful functions ... sin nθ = cos θ sin(n − 1)θ − sin(n − 2)θ (5.5.5) where the first three functions are Legendre polynomials, Bessel functions of the first kind, and exponential integrals, respectively (For notation...

Ngày tải lên: 24/12/2013, 12:16

... cof[], int n, float *resid) Given cof[0 2*n], the leading terms in the power series expansion of a function, solve the linear Pad´ equations to return the coefficients of a diagonal rational function ... function approximation to e the same function, namely (cof[0] + cof[1]x + · · · + cof[n]xN )/(1 + cof[n+1]x + · · · + Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5) ... , which itself has n + extrema of equal magnitude and alternating sign So, here, the number of rational coefficients, m + k + 1, plays the same role of the number of polynomial coefficients, n +...

Ngày tải lên: 24/12/2013, 12:16