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: Tissue Doppler in critical illness. | Available online http content 11 6 424 Letter Tissue Doppler in critical illness Michelle Chew1 Lill Bergenzaun1 Anders Ersson1 and Hans Ohlin2 1 Department of Intensive Care Medicine Entrance 42 Level 2 Malmo University Hospital S-20502 Malmo Sweden 2Department of Cardiology Lund University Hospital 22185 Lund Sweden Corresponding author Michelle Chew Published 4 December 2007 This article is online at http content 11 6 424 2007 BioMed Central Ltd Critical Care 2007 11 424 doi cc6178 See related research by Sturgess et al. http content 11 5 R97 We applaud Sturgess and colleagues 1 for their report on tissue Doppler imaging TDI in critical illness. Although their patients were selected and transthoracic echocardiography was performed at variable times after intensive care unit admission the results provide a glimpse into the use of TDI and have generated many hypotheses. Indeed there is a paucity of data regarding TDI in the critically ill patient and further studies evaluating echocardiographic parameters in this population are urgently needed. Our unit is currently conducting a cohort study in patients with severe sepsis systemic inflammatory response syndrome receiving daily transthoracic echocardiography for 7 days or until intensive care unit discharge. While our study has not been fully completed we have also found that impaired relaxation is common with a peak early diastolic mitral annular velocity cm s in 54 of patients on day 1. This patient proportion decreases to 13 on day 7. Elevated filling pressures peak early diastolic transmitral velocity peak early diastolic mitral annular velocity ratio 15 were found in 17 of patients on day 1 and persisted in 13 of patients on day 7 findings similar to those reported by Sturgess and colleagues 1 . TDI can also be used to assess systolic function and is a useful adjunct to more traditional measurements such as the ejection fraction. The .
