• M Echevarria, A Hachero, A Martinez, E Ramallo, D García-Bernal, M Ramos, and A Fernández.
• Valme University Hospital, Departament of Anaesthesiology, Seville, Spain. MERCEDES.ETXEBA@terra.es
• Eur J Anaesthesiol. 2008 Dec 1;25(12):1014-9.

Background And ObjectiveWe investigated cerebrospinal fluid characteristics in patients with and without diabetes mellitus and the influences that changes in these characteristics have on sensory and motor block when spinal anaesthesia is performed.MethodsWe included 44 patients in each study group. All received spinal administration of 15 mg of 0.5% isobaric bupivacaine. Blood and cerebrospinal fluid were analysed for glucose, total protein, urea, albumin, immunoglobulin G, sodium, chloride, potassium, calcium, magnesium and osmolarity as well as the performance of the local anaesthetic from establishment until complete regression of sensory and motor block.ResultsThe cerebrospinal fluid of the two groups differed significantly (P < 0.05) in the levels of total protein, albumin, immunoglobulin G, glucose and osmolarity. Sensory and motor block was established more rapidly in the diabetic group (P < 0.05), and the total duration from maximum block until regression to two dermatomes was greater (P < 0.05), as was the complete regression from sensory and motor block (P < 0.05).ConclusionThis study shows that diabetes mellitus has an influence on sensory and motor block after the administration of spinal isobaric bupivacaine.

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