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: Restrictive transfusions, experienced radiologists and prone positioning. | Available online http content 5 5 255 Commentary Restrictive transfusions experienced radiologists and prone positioning Jonathan Ball Department of Anaesthesia Intensive Care St George s Hospital Medical School University of London Correspondence Jonathan Ball Published online 13 September 2001 Critical Care 2001 5 255-260 This article is online at http content 5 5 255 2001 BioMed Central Ltd Print ISSN 1364-8535 Online ISSN 1466-609X The volume of published research in critical care continues to increase with each passing month. In this issue of Critical Care a few of the less well publicised but clinically important papers are reported on. A continuing theme over recent months has been to reaffirm the potentially harmful effects of specific interventions. The Canadian Clinical Trials Group published the third paper from their investigations into the effects of a restrictive strategy of blood transfusion see paper report 1 . Their restrictive strategy sets the threshold for packed red cell transfusion at haemoglobin levels 8 g dl as opposed to their liberal strategy that sets the transfusion threshold at 10 g dl. This latest study looks at the effects of the restrictive strategy on weaning from mechanical ventilation. Like the two previous studies from this group 2 3 the restrictive strategy is found to be at least as good as if not significantly better than the liberal transfusion strategy. On a similar theme Putensen and colleagues see paper report 4 have published a trial that adds to the growing body of evidence that minimising sedation and maximising patient respiratory effort in patients with acute lung injury adult respiratory distress syndrome ARDS is of significant benefit. In the trauma literature Davis and colleagues see paper report 5 report the results of a trial of imaging to exclude cervical spine injury. Their approach using dynamic fluoroscopy appears both thoughtful and sensible but perhaps most .