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Biomedical subjects

R L Hewer

Publications and source records attributed to R L Hewer.

At least 37 records · Page 2Linked to original sources

Dysphagia in acute stroke.

A prospective study was undertaken to define the incidence, duration, and consequences of dysphagia in an unselected group of 91 consecutive patients who had suffered acute stroke. The site of the present lesion and of any previous stroke was determined clinically and was confirmed by computed tomography of the brain or necropsy in 40 cases. Of 41 patients who had dysphagia on admission, 37 had had a stroke in one cerebral hemisphere. Only seven patients showed evidence of lesions in both hemispheres. Nineteen of 22 patients who survived a stroke in a hemisphere regained their ability to swallow within 14 days. Dysphagia in patients who had had a stroke in a cerebral hemisphere was associated in this study with a higher incidence of chest infections, dehydration, and death.

Acute Disease↗

Motor loss and swallowing difficulty after stroke: frequency, recovery, and prognosis.

Data relating to motor loss and swallowing difficulties in a community sample of 976 patients who suffered an acute stroke have been analysed. About 17% of patients seen within one week had no paralysis; at 6 months 48% of survivors had no paralysis and 9% had severe paralysis. The Motricity Index used to study motor loss related to functional loss and walking ability; it seems to be a simple valid measure of motor loss. Severe paralysis was associated with a high fatality rate, and only 6%-10% of survivors of an initially severe paralysis made a full recovery by 6 months. If severe persisted at 3 weeks, full recovery was not observed. Loss of sitting balance was associated with a poor outcome. Of conscious patients seen within one week, 14% choked on attempting to swallow and a further 28% had abnormal swallowing: this 42% of patients had a high fatality rate.

Activities of Daily Living↗

Functional abilities after stroke: measurement, natural history and prognosis.

Actual functional performance of 976 acute stroke patients was assessed using the Barthel index: the data were analysed to determine the frequency of disability after stroke, the validity of the Barthel index, and the recovery seen. At 6 months, over 45% of survivors were functionally independent. Validity of the Barthel index was confirmed: it related as expected with motor loss and factor analysis showed a single major factor. The items of the Barthel index form an hierarchical scale. There was some recovery between 3 weeks and 6 months in almost all patients: the major prognostic factors were urinary incontinence, functional ability, sitting balance and age.

Activities of Daily Living↗

Arm function after stroke: measurement and recovery over the first three months.

Four short, simple measures of arm function, suitable for use with patients recovering from acute stroke, are described. These tests are: the Frenchay Arm Test, the Nine Hole Peg Test, finger tapping rate and grip strength. Good interobserver and test-retest reliability was demonstrated for all tests, and the Frenchay Arm Test was shown to be valid. Normal values for all tests were established on 63 controls. It was found that the limited sensitivity of the Frenchay Arm Test could be improved using the Nine Hole Peg Test and grip strength. Recovery of arm function has been studied in a sample of 56 patients seen regularly over the first 3 months after their stroke, using these standard measures. The results demonstrated a wide variation in recovery curves between patients. The use of the Nine Hole Peg Test enabled further recovery to be detected after patients achieved a top score on the Frenchay Arm Test. Failure to recover measureable grip strength before 24 days was associated with absence of useful arm function at three months. Measurement of finger tapping rate was not useful.

Aged↗

Epidemiology of some neurological diseases with special reference to work load on the NHS.

This paper reviews evidence relating to the incidence, prevalence, and likely workload upon the NHS in relation to neurological diseases, particularly those causing long-term disability. Three studies suggest that a population of 250,000 people will contain about 5000 people with disabling neurological disease, of whom 1500 will be sufficiently disabled to require daily assistance. The review highlights the scarcity of reliable information concerning the epidemiology of neurological diseases and their disabilities, and emphasizes the need to plan neurological services at the level of the district general hospital serving a population of 250,000 people.

Brain Neoplasms↗

Aphasia after stroke: a detailed study of recovery in the first 3 months.

This is a prospective study of recovery of aphasia in 19 stroke patients selected from 117 consecutive hospital admissions by virtue of having significant aphasia and surviving 13 weeks. Aphasia was measured using the Frenchay Aphasia Screening Test (FAST) at frequent intervals from early after stroke. A wide variation in speed and extent of recovery was seen, particularly when compared with mean scores. Patients who made the most recovery had started to improve by 40 days post-stroke. An aphasic patient's FAST score at 13 weeks post-stroke could be predicted from his first score (within 2 weeks).

Adult↗

The Frenchay Aphasia Screening Test: a short, simple test for aphasia appropriate for non-specialists.

This paper describes preliminary studies on a screening test for aphasia which takes 3-10 minutes to complete and which is suitable for use by general practitioners, junior medical staff and other non-specialists. Data are presented to show that it is a reliable, valid assessment. Using cut-off values derived from normal people, the test is sensitive, but its specificity is limited by such associated factors as hemianopia. Using cut-off values derived from patients known to have aphasia, its specificity is improved. An abnormal result needs to be interpreted in the light of all available clinical information. The test should help identify patients with linguistic disturbance.

Aphasia↗

Effects of living with and looking after survivors of a stroke.

Information from a two year, longitudinal study on a community sample of patients with acute stroke was analysed to determine the effects of the stroke on the mood of the chief carer (the person living with the patient). Increased anxiety was the most commonly reported change six months after stroke. Significant depression was seen in 11-13% of carers over the first two years after stroke. The patient's functional disability was associated with depression in the carer over the first year but not at two years. A perceived poor recovery by the patient, a low level of general activities by the patient, and depression in the patient were also associated with depression in the carer within the first year. At two years after stroke none of the measured factors were related to a carer's level of depression. Carers of patients who have suffered stroke showed anxiety and emotional distress unrelated to the patient's physical disability after two years. More help from stroke support groups for carers is perhaps needed.

Cerebrovascular Disorders↗

Aphasia after stroke: natural history and associated deficits.

Data relating to 976 patients registered as suffering an acute stroke has been analysed to determine the natural history of speech disturbance: these patients came from a community survey of 215,000 people over a 28 month period. Of the 545 patients assessed within 7 days of stroke, 24% were aphasic and 28% unassessable. At 3 weeks, when over 90% of survivors were tested, 20% of those tested had aphasia. At 6 months only 12% of survivors had significant aphasia, but 44% of patients and 57% of carers thought speech was abnormal. Of those aphasic within 7 days, 40% remained so at 6 months; 60% of those aphasic at 3 weeks remained so. There was a high correlation between early and late aphasia scores. Aphasia was associated with more severe disability (degree of limb weakness, loss of function, loss of IQ), and with a less good recovery of social activities, but did not cause any measurable increase in stress upon carers. In a Health District of 250,000 people, about 60 patients each year may be referred for speech therapy after an acute stroke.

Acute Disease↗

Driving after a stroke.

Four hundred and thirty-eight stroke patients from a community register covering a period of 28 months were interviewed at one year post-stroke. Of 144 (34%) living at home who had been driving prior to their stroke, 82 (58%) did not resume post-stroke. Assessments of arm function, walking, functional ability and IQ showed ex-drivers to be significantly more disabled than drivers. Stopping driving was associated with a loss of social activities and with a higher frequency of depression amongst ex-drivers when compared with drivers. This was despite 79% of ex-drivers having easy access to alternative car transport. Extending mobility allowance to the 49 (60%) ex-drivers over 65 years old at the time of their stroke might ease their situation. More appropriate assessments would be needed to establish whether ex-drivers would benefit from retraining or car adaptations to enable them to return to driving.

Activities of Daily Living↗

Recovery after stroke--the first 3 months.

Ninety-nine patients had their function recorded regularly over the first 13 weeks after their stroke. Five functional areas were studied: urinary continence, mobility, the ability to dress, feeding, and the ability to transfer from bed to chair. Thirty-two patients died before 13 weeks. Forty-five of the 67 survivors had assessments twice weekly from within 4 days of their stroke. Recovery in these 45 patients occurred fastest in the first 2 weeks, by which time at least 50% of recovery had occurred, but it was still continuing at 13 weeks. Urinary incontinence present between 7 and 10 days after stroke was the most important adverse prognostic factor both for survival and for recovery of function. Age was the second most important factor. Hospital discharge seemed to occur once recovery had stopped, although four of the 49 patients discharged had been fully independent for at least 12 days prior to discharge. It is suggested that rehabilitative therapy should concentrate less on physical function and more on cognitive ability.

Activities of Daily Living↗

Outlook after an acute stroke: urinary incontinence and loss of consciousness compared in 532 patients.

Data from a sample of 532 patients seen within seven days of an acute stroke has been analysed to compare the prognostic importance of urinary incontinence with that of a history of any depression of consciousness. Urinary incontinence was more specific and had a higher predictive value. Considering conscious patients with moderate or severe initial disability, after six months 53 per cent of incontinent patients had died and 57 per cent of the survivors were still moderately or severely disabled whereas only 19 per cent of continent patients had died and 80 per cent of survivors made a good recovery. We conclude that early urinary incontinence is an important indicator of poor prognosis, identifying patients who may need extra attention.

Activities of Daily Living↗

Therapy after stroke: amounts, determinants and effects.

This report investigates the amounts of physiotherapy and occupational therapy given to acute stroke patients over the first 6 months, the factors that determine how much therapy a patient receives, and the effects of therapy upon outcome. The study is based on 162 acute stroke patients referred to a stroke rehabilitation unit. In this group the average daily rate of treatment during active rehabilitation, for both therapies combined, was 46 minutes, with a maximum of 42 minutes a day for physiotherapy and 48 minutes a day for occupational therapy. The major factors associated with the amount of therapy given related to the severity of the stroke: more therapy was given to those with lower initial functional ability, worse sitting balance, or greater loss of use of arm or leg. This association with severity probably accounts for the association between therapy and shoulder disease. A minor factor governing the amount of therapy given was the patient's degree of recovery: those who recovered less well received more therapy. It was not possible to demonstrate a specific beneficial effect of therapy.

Activities of Daily Living↗

Stroke: influence of patient's sex and side of weakness on outcome.

This study investigated the importance of the side of weakness and sex of the patient in patient outcome after stroke. It was based upon 162 consecutive acute stroke patients attending a rehabilitation unit. Results suggest that functional recovery was not influenced by the factors investigated, provided that measurements were made at set times poststroke. However, patients with right hemiplegia attended rehabilitation longer so they appeared to have made a better functional recovery when activity of daily living (ADL) ability was measured at discharge. Although right hemiplegia was associated with aphasia and left hemiplegia with spatial disorder and loss of sitting balance, these associations were not strong enough to affect functional recovery. Sex of the patient had no significant effect upon either the frequency of initial deficits or upon outcome, and there was no obvious interaction between the two variables (side and sex) and outcome.

Activities of Daily Living↗