S41 Conductance-Derived Right Ventricular Stroke Work Measured by Pressure Volume Loops in Chronic Thromboembolic Pulmonary Vascular Disease
نویسندگان
چکیده
منابع مشابه
Vascular and right ventricular remodelling in chronic thromboembolic pulmonary hypertension.
In chronic thromboembolic pulmonary hypertension (CTEPH) increased pulmonary vascular resistance is caused by fibrotic organisation of unresolved thromboemboli. CTEPH mainly differs from pulmonary arterial hypertension (PAH) by the proximal location of pulmonary artery obliteration, although distal arteriopathy can be observed as a consequence of non-occluded area over-perfusion. Accordingly, t...
متن کاملVascular and right ventricular remodeling in chronic thromboembolic pulmonary hypertension
Marion Delcroix, Anton Vonk-Noordegraaf, Elie Fadel, Irene Lang, Gérald Simonneau, Robert Naeije 1 Department of Pneumology, University Hospitals of Leuven, Leuven, Belgium 2 Department of Pulmonary Diseases, VU University Medical Center, Amsterdam, The Netherlands 3 Department of Thoracic and Vascular Surgery and Heart—Lung Transplantation, Hôpital Marie-Lannelongue (Paris-Sud University), Le ...
متن کاملRight ventricular dysfunction in chronic thromboembolic obstruction of the pulmonary artery: a pressure-volume study using the conductance catheter.
Pressure-volume loops describe dynamic ventricular performance, relevant to patients with and at risk of pulmonary hypertension. We used conductance catheter-derived pressure-volume loops to measure right ventricular (RV) mechanics in patients with chronic thromboembolic pulmonary arterial obstruction at different stages of pathological adaptation. Resting conductance catheterization was perfor...
متن کاملRight ventricular volume measurement by conductance catheter.
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 condu...
متن کاملRight and left ventricular function after chronic pulmonary artery banding in rats assessed with biventricular pressure-volume loops.
In many patients with congenital heart disease, the right ventricle (RV) is subjected to abnormal loading conditions. To better understand the state of compensated RV hypertrophy, which could eventually progress to decompensation, we studied the effects of RV pressure overload in rats. In the present study, we report the biventricular adaptation to 6 wk of pulmonary artery banding (PAB). PAB re...
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ژورنال
عنوان ژورنال: Thorax
سال: 2012
ISSN: 0040-6376,1468-3296
DOI: 10.1136/thoraxjnl-2012-202678.047