
1Department of Medicine, McMaster University, Hamilton, Ontario, Canada.Francois Lamontagne, methods editor, critical care clinician 11 12.Morten Hylander Møller, anaesthesiologist and critical care clinician 24 25,.Wojciech Szczeklik, critical care clinician 23,.


Per Olav Vandvik, general internist 5 6,.Reed A C Siemieniuk, general internist, methodologist 2 4,.Bram Rochwerg, chair, critical care clinician 1 2,.Given the lack of harms from atraumatic needles, most patients are likely to choose this option Preferences and values While atraumatic and conventional needles are reported to be similar to use, some learning may be required for clinicians to use the new types of needle Training and use Subgroups There are no differences in the effects of atraumatic versus conventional needles between subgroups defined by: Key practical issues Patient age Prescription or use of prophylactic measures Position of the patient during the lumbar puncture Clinical specialty of the individual performing procedure The indication for the procedure Use of bed rest after the procedure Patient sex Needle gauge Atraumatic needles do not eliminate the risk of complications entirely and clinicians should continue to discuss potential adverse consequences of the lumbar puncture with their patients The panel believes patients will put a high value attributed to the large reduction in symptoms that they may suffer following the procedure.
