estimation of left ventricular stiffness
Recommendations for the Evaluation of Left Ventricular Diastolic Function by Echocardiography
... left ventricular pressure, and left atrial pressure hardly exceeds this elevated left ventricular pressure (Courtesy of T C Gillebert and A F Leite-Moreira.) PREFACE The assessment of left ventricular ... evaluation of left ventricular relaxation and estimation of filling pressures J Am Coll Cardiol 1997;30:1527-33 91 Ruan Q, Rao L, Middleton KJ, Khoury DS, Nagueh SF Assessment of left ventricular ... Doppler Annular Signals 119 Color M-Mode Vp 119 XI Estimation of Left Ventricular Stiffness 119 A Direct Estimation 119 B Surrogate Measurements 120 DT of Mitral E Velocity 120 A-Wave Transit Time...
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Báo cáo y học: "A neonate with left pulmonary artery thrombosis and left lung hypoplasia: a case report" pps
... angiography confirming hypoplasia of the left lung Page of ElHassan et al Journal of Medical Case Reports 2010, 4:284 http://www.jmedicalcasereports.com/content/4/1/284 Page of Figure Three-dimensional ... lumen of the left pulmonary artery (LPA) consistent with LPA thrombosis of a thrombus (Figure 3) In addition, large collateral vessels originated from the distal thoracic aorta and supplied the left ... supplying the left lung were previously described with LPA thrombosis at birth and clinical evidence of PPHN [4,12] No reported cases were found of infants with congenital LPA thrombosis and left pulmonary...
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Báo cáo y học: " A neonate with left pulmonary artery thrombosis and left lung hypoplasia: a case report" pot
... angiography confirming hypoplasia of the left lung Page of ElHassan et al Journal of Medical Case Reports 2010, 4:284 http://www.jmedicalcasereports.com/content/4/1/284 Page of Figure Three-dimensional ... lumen of the left pulmonary artery (LPA) consistent with LPA thrombosis of a thrombus (Figure 3) In addition, large collateral vessels originated from the distal thoracic aorta and supplied the left ... supplying the left lung were previously described with LPA thrombosis at birth and clinical evidence of PPHN [4,12] No reported cases were found of infants with congenital LPA thrombosis and left pulmonary...
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Báo cáo y học: "Role of chymase in cigarette smoke-induced pulmonary artery remodeling and pulmonary hypertension in hamsters" doc
... Foundation of China and 00-722, 06-834 from China Medical Board of New York to Dr F.Q Wen Author details Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, and Department of ... Hospital of Sichuan University, Chengdu, Sichuan 610041, PR China 2Department of Cardiology, Fifth Affiliated Hospital of Xinjiang Medical University Department of Pathology, West China Hospital of ... inhibitors of chymase than of cathepsin G and cathepsin D activities [39,40] Furthermore, chymase is the predominate enzyme for ACE-independent production of Ang II in vascular tissues of humans,...
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Báo cáo y học: "Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study" doc
... minute of the pCO2 of the left atrium variable (p = 0.016) and the percentage change from baseline to 20 minute of the pCO2 of the left atrium variable (p = 0.023) Least, the pO2 of the left atrium ... pressure overload of the right ventricle Comparison of two models of right -left shunt Pulmonary artery to left atrium and right atrium to left atrium: experimental study Journal of Cardiothoracic ... ventricular pressure was statistically significant higher in the group of RA-LA Right ventricular overload - pressure lead often to life threatening ventricular tachycardias From this point of...
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báo cáo khoa học: "Anomalous origin of the left coronary artery from the pulmonary artery associated with an accessory atrioventricular pathway and managed successfully with surgical and interventional electrophysiological treatment: a case report" docx
... demand lead to infarction of the anterolateral left ventricular free wall, with resultant compromise of left ventricular function This causes congestive heart failure, which is often Figure (A) Multi-slice ... confirmed by a CT scan The left coronary artery originated from the leftward-facing sinus of the pulmonary valve The left ventricle was dilated with an ejection fraction of 30% Our patient underwent ... computed tomographic image of the anomalous origin of the left main coronary artery from the pulmonary artery, and (B) location of the successful ablation site at the left posterolateral area Shown...
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Báo cáo y học: " Response of pulmonary artery intimal sarcoma to surgery, radiotherapy and chemotherapy: a case report" docx
... growth with obstruction of the tract and seeding of emboli [1,2] Intimal sarcoma is a rare tumor, and the incidence of PA intimal sarcoma is almost twice that of sarcomas of aortic origin It mainly ... a clear boundary was detected on the quadrate lobe of the liver Based on these findings, a diagnosis of a local recurrence of intimal sarcoma of the PA was made, with suspected metastasis to the ... recurA computed tomography scan of the chest shows the recurrence of pulmonary artery intimal sarcoma Page of (page number not for citation purposes) Journal of Medical Case Reports 2008, 2:217...
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Báo cáo y học: " Endothelial cell apoptosis in chronically obstructed and reperfused pulmonary artery" pps
... after ligation of the left PA (ligated group), days after re-anastomosis of the left PA previously ligated for weeks (acute reperfusion group), weeks after re-anastomosis of the left PA previously ... examined The proximal and distal ECs of the left PA were examined separately Baseline wet-lung weight was estimated by measuring the weight of the left lung at the end of the experiment They were then ... ischemia/reperfusion model In the first part of the study, we assessed EC apoptosis and endothelial function during chronic ischemia-reperfusion of the left lung induced by left PA ligation and re-anastomosis,...
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Báo cáo y học: " Pro/con clinical debate: Pulmonary artery catheters increase the morbidity and mortality of intensive care unit patients" potx
... in the evaluation of hemodynamic status but, similarly, PAC data is often incorrectly interpreted and utilized The current standard of practice is to insert a PAC in cases of hemodynamic uncertainty ... catheter and left ventricular preload Chest 1986, 89:427-434 Rajacich N, Burchard KW, Hasan FM, Singh AK: Central venous pressure and pulmonary capillary wedge pressure as estimates of left atrial ... length of stay and costs Those studies that suggest an increased mortality have serious methodologic flaws such as small numbers of heterogeneous patient populations, inappropriate use of the...
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Báo cáo khoa học: "The concentration of oxygen, lactate and glucose in the central veins, right heart, and pulmonary artery: a study in patients with pulmonary hypertension" ppt
... idea of mixing SVC and IVC blood as the mechanism for development of Δ[Lac] The finding of greater SO2 and [Lac] in IVC and SVC than in pulmonary artery indicates that further dilution of oxygen ... development of ΔSO2 and Δ[Lac] in the patient population studied cannot be explained by the mixing of SVC and IVC blood The development of these gradients appears to require mixing with blood of lower ... exclusively from mixing of SVC and IVC blood streams, we measured concentrations of oxygen and [Lac] in the central veins, the right heart chambers, and the pulmonary artery of hemodynamically stable...
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Báo cáo y học: " Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study" ppt
... echocardiographic findings suggesting right ventricular systolic dysfunction without overt signs of right ventricular failure We selected patients at relevant risk of acute right ventricular dysfunction due ... artery pressure Our finding of reduced right ventricular ejection fraction in almost half of the nonresponders and in none of the responders supports the concept that right ventricular dysfunction ... ventricular dysfunction contributed to the poor predictive value of PPV Admittedly, the reliability of right ventricular ejection fraction estimation by using thermodilution catheters is controversial...
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Báo cáo y học: "Pulse pressure variation and volume responsiveness during acutely increased pulmonary artery pressure: an experimental study" doc
... with the National Institutes of Health guidelines for the care and use of experimental animals, and with the approval of the Animal Care Committee of the Canton of Bern, Switzerland Anesthesia ... criteria for the prediction of recovery of post-ischaemic left ventricular dysfunction Results from the European Community Concerted Action Multicenter study on use of 18 F-fluoro-deoxyglucose ... were administered in the form of hydroxyethyl starch in portions of 10% of the estimated blood volume, until cardiac output did not increase further At the end of the experiment, the animals...
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Báo cáo y học: "Cross-comparison of cardiac output trending accuracy of LiDCO, PiCCO, FloTrac and pulmonary artery catheters" docx
... Page of 10 by each set of paired devices The upper and lower limits of agreement were defined as ± 1.96 standard deviation (SD) of the bias The percentage error was calculated as limits of agreement ... CCO Type of PAC (COTD/CCO) Type of operation 6.0 ± 1.3 FloTrac/Vigileo Age (yr) 5.9 ± 1.3 PiCCO Table Patient demographic dataa LiDCO Plus Data are presented as means ± SD LVEF, left ventricular ... http://ccforum.com/content/14/6/R212 Page of 10 Figure Bland-Altman analysis of each set of paired devices’ cardiac output (CO) Solid line, mean difference (bias); dotted lines, limit of agreement (bias ± 1.96...
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Aging of the Respiratory System: Impact on Pulmonary Function Tests and Adaptation to Exertion pdf
... decrease in the surface area of airspace wall per unit of lung volume beginning in the third decade of life The decrease in surface area of airspace wall per unit of lung volume approximately ... Lung volumes The major determinants of static lung volumes are the elastic recoil of the chest wall and that of the lung parenchyma Loss of elastic recoil of the lung parenchyma and, to a lesser ... decrease in vital capacity to approximately 75% of best values Because of the increased stiffness of the chest wall, the age-related diminished elastic recoil of the lungs is counterbalanced by an increased...
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Sputum smear negative pulmonary tuberculosis: sensitivity and specificity of diagnostic algorithm docx
... part of another study on that aimed to investigate/examine sputum smear negative but culture positive PTB the association with HIV Assuming a sensitivity of 50% and specificity of 75%, a sample of ... (RR > 20), presence of a cavity, mixed type of anaemia, were strong predictors of PTB culture positivity Eosinophilia was also found to be associated with a 50% less chance of being sputum culture ... eosinophil counts, mixed type of anaemia and the presence of cavities on X-rays were predictors of smear negative but culture positive[Table 5] Discussion This study showed that of those found to have...
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Báo cáo khoa học: Heme oxygenase-1 ⁄p21WAF1 mediates peroxisome proliferator-activated receptor-c signaling inhibition of proliferation of rat pulmonary artery smooth muscle cells pot
... expression of HO-1 (P < 0.01), suggesting that activation of PPARc specifically and effectively mediates HO-1 induction in PASMCs Role of HO-1 in PPARc agonist suppression of proliferation of PASMCs ... we investigated the influ- ence of the loss of p21WAF1 on the effect of PPARc activation on suppression of cell proliferation Figure 4B indicates that knockdown of p21WAF1 by siRNA transfection ... P21WAF1 is one of several important CDK inhibitors [17] We hypothesized that activation of PPARc could induce the expression of HO-1, and that this in turn could upregulate the expression of p21WAF1,...
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Báo cáo Y học: Proteolytic action of duodenase is required to induce DNA synthesis in pulmonary artery fibroblasts A role for phosphoinositide 3-kinase pot
... G Bloomberg (University of Bristol, UK) All other chemicals were of the highest commercial quality RESULTS Identification of duodenase The N-terminal amino-acid sequence of the product isolated ... regardless of the fixation procedure (Fig 1c) Lungworm-infected lung parenchyma showed the presence of large numbers of eosinophils and toluidine blue-positive mast cells An example of their distribution ... the proteolytic activity of duodenase is essential for induction of DNA synthesis Importantly, treatment of cells with duodenase (30 nM) for 10 followed by the addition of soybean trypsin inhibitor...
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LABORATORY DIAGNOSIS OF PULMONARY TUBERCULOSIS : CONVENTIONAL AND NEWER APPROACHES+ pdf
... the diagnosis of Tuberculosis and try to improve upon our own deficiencies for making the best use of the old technique of microscopy instead of criticizing the inherent deficiencies of this technique ... Contamination is a may only be of use in children where other tests problem that all PCR laboratories must face, are not of much help since the product of the reaction contains millions of suitable templates ... those of us who are carried away by certain reports coming from research DNA PROBES publications Batches of 200 samples containing Recent developments in the field of molecular varying numbers of...
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Pulmonary Tuberculosis - Evolution and Clinical picture doc
... (curettae of endometritis, massage of arthritis) so surgery should be under anti TB cover -Tuberculous endangitis : Seeding of bacilli into vessel walls may cause a caseous vasculitis of the intima ... presentation is with the insidious onset of weight loss, malaise and a fever of unknown origin Anemia is usual and the ESR is often elevated A variety of blood dyscrasias, including leucopenia, ... majority of patients are middle-aged or elderly • no symptoms • gradual onset of symptoms over weeks and months • general symptoms, such as tiredness, malaise, loss of appetite, weakness or loss of...
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