tailieunhanh - Báo cáo y học: "Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients"

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: Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients. | Available online http content 13 5 R142 Research Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients Manuel Ignacio Monge García Anselmo Gil Cano and Juan Carlos Díaz Monrové Open Access Servicio de Cuidados Críticos y Urgencias Unidad de Investigación Experimental Hospital del SAS Jerez C Circunvalación s n 11407 Jerez de la Frontera Spain Corresponding author Manuel Ignacio Monge García ignaciomonge@ Received 22 May 2009 Revisions requested 25 Jun 2009 Revisions received 6 Jul 2009 Accepted 3 Sep 2009 Published 3 Sep 2009 Critical Care 2009 13 R142 doi cc8027 This article is online at http content 13 5 R1 42 2009 Monge García 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. Abstract Introduction Although several parameters have been proposed to predict the hemodynamic response to fluid expansion in critically ill patients most of them are invasive or require the use of special monitoring devices. The aim of this study is to determine whether noninvasive evaluation of respiratory variation of brachial artery peak velocity flow measured using Doppler ultrasound could predict fluid responsiveness in mechanically ventilated patients. Methods We conducted a prospective clinical research in a 17-bed multidisciplinary ICU and included 38 mechanically ventilated patients for whom fluid administration was planned due to the presence of acute circulatory failure. Volume expansion VE was performed with 500 mL of a synthetic colloid. Patients were classified as responders if stroke volume index SVi increased 15 after VE. The respiratory variation in Vpeakbrach AVpeakbrach was calculated as the difference between maximum and minimum