Anaesthesia
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This study aimed to assess the accuracy and agreement between examiners when attempting to identify a single lumbar spinal level using passive intersegmental motion testing, a technique commonly used by physical therapists. Thirty-five adults were examined independently by an experienced and a novice clinician. Each examiner was asked to identify and note the interspace between the fifth lumbar vertebra and the first sacral vertebra, and to mark it. ⋯ Interobserver agreement was poor. A significant learning effect was found for the experienced examiner, with proportionately more correct levels identified during the second part of the study (79%) when compared to the first (31%). The results show that intersegmental motion testing is a relatively unreliable method of identifying the correct spinal level.
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Case Reports
Use of thromboelastography to demonstrate persistent anticoagulation after stopping enoxaparin.
Peri-operative guidelines exist for neuraxial anaesthesia and anticoagulant therapy. We describe the use of thromboelastography to assess the coagulation status of a patient with moderate renal impairment who had been receiving enoxaparin and was being managed in accordance with current recommendations. This report demonstrates that current guidelines for discontinuing treatment with enoxaparin may not allow a sufficient safety margin in all patient groups and that thromboelastography is a useful tool in such situations.