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Biomedical subjects

A Shiel

Publications and source records attributed to A Shiel.

11 recordsLinked to original sources

Monitoring emergence from coma following severe brain injury in an octogenarian using behavioural indicators, electrophysiological measures and metabolic studies: a demonstration of the potential for good recovery in older adults.

This case study describes a multi-disciplinary investigation of the emergence from coma of an 80-year old female (KE) following severe traumatic brain injury. The relationship between cognitive/behavioural ability and the integrity of cerebral function was assessed using neuropsychological measures, positron emission tomography, electroencephalography, somatosensory evoked potentials and trans-cranial magnetic stimulation. These investigations were performed as KE was beginning to emerge from coma (4 weeks) and, again, approximately 1 year following brain injury, when she was judged to have achieved her maximum level of recovery. Neuropsychological measures revealed improvement during the first year post-injury in KE's speed of information processing, memory and executive abilities. Electrophysiological and metabolic studies indicated a restoration of functional integrity that was consistent with the gradual recovery in higher brain function documented using behavioural procedures. This case study demonstrates the rehabilitation potential of pre-morbidly healthy older adults following severe traumatic brain injury.

Accidents, Traffic↗

The impact of traumatic brain injury on family members living with patients: a preliminary study in Japan and the UK.

PURPOSE: To ascertain the views of families living with TBI patients about the nature of the problems experienced as a result of TBI, and to compare the views of Japanese family members (J-FM) and British family members (B-FM) in order to find out whether there were cultural differences in family response to TBI. METHODS: Family members involved in providing care were identified by the patients. Face to face interviews were conducted with all 18 carers in B-FM and four carers in J-FM. The remaining eight carers in J-FM participated in the postal questionnaire. Questionnaires were developed to explore the nature of problems and the involvement of family such as social embarrassment. RESULTS: Problems arising in families were almost the same reported from both groups. However families in B-FM were likely to know more about how to cope with these problems. Family members in J-FM reported more statistically significant increases in social embarrassment than those in B-FM. CONCLUSION: The preliminary results showed that family members living with TBI patients in both groups had experienced problems. Appropriate rehabilitation services should be developed to help families as well as TBI patients in Japan.

Adaptation, Psychological↗

The effects of increased rehabilitation therapy after brain injury: results of a prospective controlled trial.

OBJECTIVE: The objective was to investigate the effect of increased intensity of rehabilitation therapy provided to brain-injured subjects on the rate at which independence was regained and the duration of hospital admission. DESIGN: A two-centre, prospective, controlled study with random allocation to groups. SETTING: Two district general hospitals on the south coast of England. SUBJECTS: Fifty-six people with moderate and severe head injury consecutively admitted to Southampton and Poole hospitals between June 1995 and September 1997. INTERVENTIONS: Increased intensity of rehabilitation therapy input without change in content. RESULTS: Subjects receiving more intensive therapy made more rapid progress and were discharged home sooner. The different intensities of therapy employed in this study showed no evidence of a 'ceiling' effect and the 'intervention group' made significantly more rapid progress on tests of dependency during the period of admission. A clear response to increased therapy input was seen in one of the centres with more rapid functional improvement and a shorter length of hospital stay. This centre already had more therapy and better community facilities. No such benefits were seen at the other centre where the intervention group had a longer hospital stay than the routine group. CONCLUSION: Increasing the hours per week of therapy given to adults recovering from brain injury in hospital can accelerate the rate of recovery of personal independence and result in their being discharged from hospital sooner. Increased rehabilitation therapy after brain injury is associated with enhanced functional recovery and shorter hospital stay if provided in the context of an integrated service that can provide ongoing community support. There is no evidence of any ceiling effect of therapeutic intensity beyond which no further response is observed.

Adolescent↗

Assessing subtle memory impairments in the everyday memory performance of brain injured people: exploring the potential of the extended Rivermead Behavioural Memory Test.

A substantial number of brain injured patients complain of memory deficits, despite achieving scores within the normal range on tests of memory functioning. The Rivermead Behavioural Memory Test is an ecologically valid test used to assess everyday memory problems. This test is effective at detecting moderate to-severe impairments, yet subtle memory deficits may go undetected for some patients who achieve a score within the normal range. The initial development of an extended version of this test (RBMT-E), designed to detect subtle decrements in memory performance, has recently been described. The performance of 16 brain injured patients was assessed on both the RBMT and the KBMT-E. The performance of these patients on the RBMT-E was compared with that of matched controls. Overall, the patients performed significantly worse than the controls, and showed particular difficulty in two subtests involving recalling a route and remembering to deliver a message. Those patients who scored in the 'normal' range on the RBMT could be further differentiated on the basis of their RBMT-E scores into 'good', 'average' and 'poor' performance categories. The patients' performance was not significantly associated with general intellectual ability. These results suggest that the RBMT-E may be a useful clinical tool to aid therapists in the assessment of subtle impairments of everyday memory performance following brain injury.

Adolescent↗

An evaluation of neurobehavioural problems as perceived by family members and levels of family stress 1-3 years following traumatic brain injury in Japan.

OBJECTIVE: To ascertain the proportion of patients with traumatic brain injury (TBI) admitted to a Japanese district hospital and to evaluate the levels of stress and anxiety in fami ies living with those TBI patients. DESIGN: A retrospective study of patients admitted to hospital from April 1995 to March 1997 and a questionnaire study of family members of survivors. SETTING AND SUBJECTS: All patients referred or transferred to the Emergency Department at the Saga Medical School Hospital, Japan with a primary diagnosis of TBI were studied. Family members living with TBI patients were sent questionnaires. MAIN OUTCOME MEASURES: The Barthel Index, the Patient Competency Rating Scale, the modified Caregiver Strain Index and the Hospital Anxiety and Depression Scale. RESULTS: There were 34 patients who required hospitalization for care relating to TBI. Of these, nine family members took part in the questionnaire study. Three carers reported fairly high levels of stress and another three carers were considered to be at risk of anxiety and depression. There was a tendency for family members who reported that patients had difficulties in performing behavioural tasks to have higher levels of stress themselves. CONCLUSION: These preliminary results showed that family members experienced certain levels of stress and were also at risk of anxiety and depression. The impact of TBI on families as well as patients should receive more attention.

Adolescent↗

The Wessex Head Injury Matrix (WHIM) main scale: a preliminary report on a scale to assess and monitor patient recovery after severe head injury.

OBJECTIVE: To develop a behavioural assessment based on observations of patients recovering after severe head injury whereby data could be collected by observation and by testing everyday tasks. DESIGN: A prospective observational study of a cohort of 88 consecutive hospital admissions with severe head injury. SETTING: Two district general hospitals in the UK. PATIENTS: Eighty-eight consecutive admissions with severe traumatic head injury. Ages ranged from 14 to 67 years, mean coma duration was 14 days and mean duration of post traumatic amnesia (PTA) was 56 days. RESULTS: Fifty-eight items of behaviour were identified. Paired preference analysis was used to identify a sequence of recovery of these behaviours. The sequence began with arousal and led on to behaviours signalling recovery of social interaction and communication. Subsequent behaviours indicated increasing cognitive organization and return of orientation and memory. The behaviours on the scale are hierarchical and range from coma to emergence from PTA. CONCLUSIONS: A scale to assess patients and monitor cognitive recovery after severe head injury has been developed. While individual patients will show some departures from the sequence identified, the scale helps to make explicit the earliest stages of natural recovery patterns after head injury.

Adolescent↗

Assessment after extremely severe head injury in a case of life or death: further support for McMillan.

This paper is a sequel to that of McMillan (1997) and describes further assessment of an extremely severely head injured patient. A combination of direct observations, structured interviews with staff, simple cognitive tests and questions with yes/no answers were used to assess communication and cognitive function in an extremely severely head injured patient with minimal ability to respond. Results confirmed the finding of McMillan and showed that the patient could understand and respond consistently to simple commands, could answer simple autobiographical questions consistently and clearly expressed her wish to live. The results of this study and that of McMillan confirm that valid assessment of minimally responsive patients is possible and that a number of different approaches are appropriate.

Awareness↗

Auditory sustained attention is a marker of unilateral spatial neglect.

The relationships between performance on a non-spatially-lateralized measure of sustained attention and spatial bias on tests sensitive to unilateral neglect were considered in a group of 44 patients with right hemisphere lesions following stroke. As predicted from earlier studies showing a strong association between unilateral spatial neglect and sustained attention, performance on a brief and monotonous tone-counting measure formed a significant predictor of spatial bias across a variety of measures of unilateral visual neglect. This study provides further evidence for a very close link between two attentional systems hitherto regarded as being quite separate, namely a spatial attention system implicated in unilateral neglect and a sustained attention system. A close connection between these two systems was predicted by Posner, who argued that the right hemisphere-dominant sustained attention system provides a strong modulatory influence on the functioning of the lateralized posterior attention system.

Acoustic Stimulation↗

Reality orientation training in an amnesic: a controlled single-case study (n = 572 days).

'Reality orientation training' (ROT) is a well-established therapy used with the elderly, especially those with dementia. It aims to improve orientation and reduce negative behaviours, e.g. confusion. ROT has been recommended for non-demented patients with acquired neurological impairment. However, this suggestion has not been investigated further in controlled trials. This paper describes an informal 24 h ROT programme with an amnesic subject (H.J.). It combined single-case experimental designs derived from behaviour therapy. Target behaviours were items of temporal orientation--current time/time of day, year, season, month and day of week. Orientation regarding the current date was not trained, and thus served as control variable for non-specific effects (e.g. spontaneous recovery). In order to improve oriented behaviour in different relevant situations outside the clinic, we chose 24 h ROT instead of formal therapeutic sessions. The patients' spouse offered 24 h ROT at home 7 days a week. This consisted of reminding the patient of orientation information, e.g. the current day of the week in different situations. Furthermore, negative behaviours such as irrelevant questions were ignored. The patients' spouse was trained and supervised to carry out this task in 27 sessions each lasting 10 min. For 14 weeks supervision was provided twice a week in the clinic (i.e. 2 x 10 min). Afterwards the spouse continued to apply ROT at home without further supervision in two follow-up periods. As expected, learning was slow but reliable. Generalization of improvement to another setting was shown (home vs clinic). Stable therapeutic gains over a long follow-up period could be demonstrated.(ABSTRACT TRUNCATED AT 250 WORDS)

Activities of Daily Living↗