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Background Literature shows that occurrence of comorbidities in people with severe acquired brain injury (sABI) is a common problem in rehabilitation stay. Consequently, patients could require an increase of interventions for diagnosis and treatment of clinical conditions, with a reduction of the rehabilitative take in charge for both clinical and organizational aspects. Aim The first aim was to evaluate the rate of clinical conditions of sABI patients at admission in rehabilitation and the types of rehabilitative interventions performed in the first week; second objective was to explore the impact of clinical conditions on real rehabilitative take in charge. Design Cross sectional study. Setting Inpatient rehabilitation centers. Population The study included data from 586 sABI patients. Methods Collected data regarded anamnestic information, functional status assessed by means of Glasgow Outcome Scale, Levels of cognitive functioning, Early Rehabilitation Barthel Index, comorbidities at admission and type of rehabilitative interventions carried out in first week of rehabilitation stay. Spearman correlation coefficients were applied to detect possible correlations between the number of treatments in first week and clinical variables; through a multiple regression analysis the effect of patient's characteristics on rehabilitative take in charge was explored. Results Data from the sABI patients: mean age 55.1±17.1 years; etiology of sABI was vascular in 315 patients (53.8%), anoxic in 83 (14.2%), neoplastic in 17 (2.9%), infectious in 15 (2.6%), traumatic in 150 (25.6%); 6 subjects (1%) presented a mixed etiology. Need of cardiorespiratory monitoring, pressure sores, infections or presence of multi drug resistant bacteria were the most frequent comorbidities. Passive mobilization, sitting positioning, arousal/awareness stimulation, evaluation and management of dysphagia were the interventions most frequently carried out in the first week. The regression analysis showed that severe neurological and clinical conditions, acute organ failure, cardio-respiratory instability and paroxysmal sympathetic hyperactivity significantly limit access to rehabilitative sessions. Conclusions In sABI patients clinical comorbidities requiring elevated care assistance are frequent at admission in rehabilitation from acute wards and may interfere with rehabilitative take in charge. Clinical rehabilitation impact The knowledge of clinical complexity of sABI patients may improve their care pathways, promoting early and appropriate transition from acute care to rehabilitation settings.

Neurolinguistic studies have provided important evidence regarding the organization of lexical representations and the structure of underlying conceptual knowledge; in particular, it has been shown that the retrieval of verbs and nouns can be damaged selectively. Dissociated lexical damage is proof of an independent mental organization of lexical representations and/or of the underlying processes, The aim of the present study is to estimate the rate of dissociated impairments for nouns and verbs on a large sample of mild to moderate aphasic patients and to investigate the mechanisms underlying such phenomena. In addition, the authors wished to verify to what degree the impairment for nouns and verbs is related to a specific type of language disorder. A confrontation naming task for verbs and nouns was administered to 58 aphasic patients. The major lexical (word frequency and age of acquisition) and semantic variables (familiarity and imageability of the underlying concept) were considered for cacti noun and verb used in the task. Verbs were distinguished by major functional classes (transitive, intransitive, and ergative verbs). The data collected from this task were analyzed twice: (i) as a group study comparison of major aphasic subgroups and (ii) as a multiple single case study to evaluate the differences on the naming of verbs and nouns and the effect of the lexical variables on each individual patient. The results confirm the existence of dissociated naming impairments of verbs and nouns. Selective impairment of verbs is more frequent (34%) than that of nouns (10%). In many cases, the dissociated pattern of naming impairment disappeared when the effect of the concomitant variables (word frequency and imageability) was removed, but in approximately one-fifth of the cases the noun or verb superiority was preserved. Noun superiority emerged in five of six agrammatic patients. Both the naming of verbs (n = 9) or of nouns (n = 6) could be impaired selectively in fluent aphasic patients, The results lend support to the hypothesis of an independent mental organization of nouns and verbs, but a substantial effect of imageability and word frequency suggests an interaction of the naming impairment With underlying lexical and semantic aspects. (C) 2002 Elevier Science (USA).