tailieunhanh - Báo cáo khoa học: "Is tissue Doppler echocardiography the Holy Grail for the intensivist"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Is tissue Doppler echocardiography the Holy Grail for the intensivist? | Available online http content 11 3 135 Commentary Is tissue Doppler echocardiography the Holy Grail for the intensivist Jan Poelaert and Carl Roosens University Hospital Ghent Department of Intensive Care Medicine and Cardiac Anaesthesia 5 K12 IE De Pintelaan 185 B-9000 Gent Belgium Corresponding author Jan Poelaert Published 6 June 2007 This article is online at http content 11 3 135 2007 BioMed Central Ltd Critical Care 2007 11 135 doi cc5903 See related research by Vignon et al. http content 11 2 R43 Abstract Assessment of left ventricular diastolic function in the critically ill patient remains a difficult issue in clinical practice. Combined use of routine transmitral and pulmonary venous Doppler patterns in conjunction with tissue Doppler imaging have been claimed to allow bedside diagnosis of diastolic dysfunction. Although in the previous issue of Critical Care it was clearly demonstrated there might be a difference in load dependency of the early myocardial tissue Doppler velocity between lateral and septal placed sample volume there remain still several unanswered questions particularly with respect to the preload dependency of these indices. The clinical evaluation of left ventricular LV diastolic function has been a difficult challenge. LV filling and pulmonary venous Doppler patterns have been utilized to estimate LV diastolic function comprising variables as such stiffness relaxation and even LV filling pressures. Doppler eehoeardio-graphy has been utilized not only as a diagnostic tool but also as a monitoring tool permitting follow-up of the effects of therapeutic interventions. In the previous issue of Critical Care Vignon and colleagues demonstrated the value of tissue Doppler imaging TDI to estimate LV diastolic function in a setting where acute alterations of preloading conditions may interfere 1 . They also clearly show some weak points with respect to the correct use of these .

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