tailieunhanh - Báo cáo y học: "Enteral feeding in the critically ill: comparison between the supine and prone positions A prospective crossover study in mechanically ventilated patients"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Enteral feeding in the critically ill: comparison between the supine and prone positions A prospective crossover study in mechanically ventilated patients. | Critical Care August 2001 Vol 5 No 4 van der Voort and Zandstra Research article Enteral feeding in the critically ill comparison between the supine and prone positions A prospective crossover study in mechanically ventilated patients Peter HJ van der Voort and Durk F Zandstra Department of Intensive Care Medical Centre Leeuwarden-Zuid Leeuwarden The Netherlands Department of Intensive Care Onze Lieve Vrouwe Gasthuis Amsterdam The Netherlands Correspondence Peter HJ van der Voort phjvdvoort@ Received 10 November 2000 Revisions requested 15 March 2001 Revisions received 13 April 2001 Accepted 25 April 2001 Published 25 May 2001 Critical Care 2001 5 216-220 2001 van der Voort and Zandstra licensee BioMed Central Ltd Print ISSN 1364-8535 Online ISSN 1466-609X Abstract Introduction Prone position is effective in mechanically ventilated patients to improve oxygenation. It is unknown if prone position affects gastric emptying and the ability of continued enteral feeding. Aim To determine tolerance of enteral feeding by measuring gastric residual volumes in enterally fed patients during supine and prone positions. Methods Consecutive mechanically ventilated intensive care patients who were turned to prone position were included. All patients were studied for 6 hours in supine position immediately followed by 6 hours in prone position or visa versa. The rate of feeding was unchanged during the study period. Gastric residual volume was measured by suctioning the naso-gastric tube after 3 and 6 hours in the same position. Wilcoxon test and regression analysis were used for analysis. Results The median volume of administered enteral feeds was 95 ml after 6 hours in supine position and 110 ml after 6 hours in prone position P . In 10 patients a greater gastric residual volume was found in prone position. In eight others a greater volume was found in supine position. In 18 of 19 patients gastric residual volumes in both positions were 150 ml in 6 hours or 150 ml in 6