tailieunhanh - Báo cáo y học: "Changes in regional distribution of lung sounds as a function of positive end-expiratory pressure"

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: Changes in regional distribution of lung sounds as a function of positive end-expiratory pressure. | Available online http content 13 3 R66 Research Changes in regional distribution of lung sounds as a function of positive end-expiratory pressure Shaul Lev1 Yael A Glickman2 Ilya Kagan1 David Dahan1 Jonathan Cohen1 Milana Grinev1 Maury Shapiro1 and Pierre Singer1 Department of General Intensive Care Rabin Medical Center Beilinson Campus 39 Jabotinski Street. Petach Tikva 49100 Israel 2Deep Breeze Ltd. 2 Hailan St. . Box 140 North Industrial Park Or-Akiva 30600 Israel Corresponding author Shaul Lev Received 7 Nov 2008 Revisions requested 16 Jan 2009 Revisions received 27 Apr 2009 Accepted 10 May 2009 Published 10 May 2009 Critical Care 2009 13 R66 doi cc7871 This article is online at http content 13 3 R66 2009 Lev et al. licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Open Access Abstract Introduction Automated mapping of lung sound distribution is a novel area of interest currently investigated in mechanically ventilated critically ill patients. The objective of the present study was to assess changes in thoracic sound distribution resulting from changes in positive end-expiratory pressure PEEP . Repeatability of automated lung sound measurements was also evaluated. Methods Regional lung sound distribution was assessed in 35 mechanically ventilated patients in the intensive care unit ICU . A total of 201 vibration response imaging VRI measurements were collected at different levels of PEEP between 0 and 15 cmH2O. Findings were correlated with tidal volume oxygen saturation airway resistance and dynamic compliance. Eighty-two duplicated readings were performed to evaluate the repeatability of the measurement. Results A significant shift in sound distribution from the .