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Issue title: Disorders of Consciousness: A Field in Flux
Guest editors: Caroline Schnakers and Nathan D. Zasler
Article type: Review Article
Authors: Estraneo, Annaa; * | Briand, Marie-Micheleb; c; d; 1 | Noé, Enriquee; 1
Affiliations: [a] IRCCS Fondazione Don Carlo Gnocchi ONLUS, Florence, Italy | [b] Research Center of Hôpital du Sacré-Coeur de Montréal, CIUSSS-NÎM, Montreal, QC, Canada | [c] Institutde Réadaptation en Déficience Physique de Québec, Quebec, QC, Canada | [d] Faculty of Medicine, Université de Montréal, Montreal, QC, Canada | [e] IRENEA-Instituto de Rehabilitación Neurológica, Fundación Hospitales Vithas, Valencia, Spain
Correspondence: [*] Correspondence to: Anna Estraneo, IRCCS Don Carlo Gnocchi Foundation, Florence, Italy. E-mail: [email protected].
Note: [1] These authors contributed equally to this study.
Abstract: BACKGROUND: A few studies specifically addressed medical comorbidities (MCs) in patients with severe acquired traumatic or non-traumatic brain injury and prolonged disorders of consciousness (pDoC; i.e., patients in vegetative state/unresponsive wakefulness syndrome, VS/UWS, or in minimally conscious state, MCS). OBJECTIVE: To provide an overview on incidence of MCs in patients with pDoC. METHODS: Narrative review on most impacting MCs in patients with pDoC, both those directly related to brain damage (epilepsy, neurosurgical complications, spasticity, paroxysmal sympathetic hyperactivity, PSH), and those related to severe disability and prolonged immobility (respiratory comorbidities, endocrine disorders, metabolic abnormalities, heterotopic ossifications). RESULTS: Patients with pDoC are at high risk to develop at least one MC. Moderate or severe respiratory and musculoskeletal comorbidities are the most common MCs. Epilepsy and PSH seem to be more frequent in patients in VS/UWS compared to patients in MCS, likely because of higher severity in the brain damage in VS. Endocrine metabolic, PSH and respiratory complications are less frequent in traumatic etiology, whereas neurogenic heterotopic ossifications are more frequent in traumatic etiology. Spasticity did not significantly differ between VS/UWS and MCS and in the three etiologies. MCs are associated with higher mortality rates, worse clinical improvement and can impact accuracy in the clinical diagnosis. CONCLUSIONS: The frequent occurrence of several MCs requires a specialized rehabilitative setting with high level of multidisciplinary medical expertise to prevent, appropriately recognize and treat them. Comprehensive rehabilitation could avoid possible progression to more serious complications that can negatively impact clinical outcomes.
Keywords: Disorders of consciousness, medical comorbidities, outcome, rehabilitation setting
DOI: 10.3233/NRE-230130
Journal: NeuroRehabilitation, vol. 54, no. 1, pp. 61-73, 2024
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