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Sympathetic activity and early mobilization in patients in intensive and intermediate care with severe brain injuries: a preliminary prospective randomized study
Rocca A, Pignat J-M, Berney L, Johr J, van de Ville D, Daniel RT, Levivier M, Hirt L, Luft AR, Grouzmann E, Diserens K
BMC Neurology 2016 Sep 13;16(169):Epub
clinical trial
3/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Patients who experience severe brain injuries are at risk of secondary brain damage, because of delayed vasospasm and edema. Traditionally, many of these patients are kept on prolonged bed rest in order to maintain adequate cerebral blood flow, especially in the case of subarachnoid hemorrhage. On the other hand, prolonged bed rest carries important morbidity. There may be a clinical benefit in early mobilization and our hypothesis is that early gradual mobilization is safe in these patients. The aim of this study was to observe and quantify the changes in sympathetic activity, mainly related to stress, and blood pressure in gradual postural changes by the verticalization robot (Erigo) and after training by a lower body ergometer (MOTOmed-letto), after prolonged bed rest of minimum 7 days. METHODS: Thirty patients with severe neurological injuries were randomized into 3 groups with different protocols of mobilization: standard, MOTOmed-letto or Erigo protocol. We measured plasma catecholamines, metanephrines and blood pressure before, during and after mobilization. RESULTS: Blood pressure does not show any significant difference between the 3 groups. The analysis of the catecholamines suggests a significant increase in catecholamine production during standard mobilization with physiotherapists and with MOTOmed-letto and no changes with Erigo. CONCLUSIONS: This preliminary prospective randomized study shows that the mobilization of patients with severe brain injuries by means of Erigo does not increase the production of catecholamines. It means that Erigo is a well-tolerated method of mobilization and can be considered a safe system of early mobilization of these patients. Further studies are required to validate our conclusions. TRIAL REGISTRATION: The study was registered in the ISRCTN registry with the trial registration number ISRCTN56402432. Date of registration 08.03.2016. Retrospectively registered.

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