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Biomedical subjects

P Crome

Publications and source records attributed to P Crome.

At least 37 records · Page 2Linked to original sources
PubMed1994

Evaluation of a clinical score for prognostic stratification of elderly stroke patients.

Orpington Prognostic Score (OPS) is a clinically derived score which incorporates measures of motor deficit, proprioception, balance and cognition. OPS and urinary continence were measured prospectively in 217 stroke survivors over 75 years of age at 1, 2 and 4 weeks after stroke and were correlated with dependence at discharge. Three levels of dependence were defined based on personal self-care abilities. OPS ranged from 2.0 to 3.2 (median 2.8) at 2 weeks after stroke in patients independent at discharge (n = 54). Their initial median Barthel index of 4 improved by a median of 12. Urinary continence was achieved in 95% of these patients by 2 weeks. All patients were discharged home, 39 (72%) within 4 weeks. Patients with limited dependence at discharge (n = 129) had OPS of 3.2-4.8 (median 4.0) at 2 weeks. Two-thirds were continent at 2 weeks. Their initial median Barthel index was 2 and changed by a median of 12. Seventy-one (55%) of these patients went home. OPS ranged from 5.2 to 6.8 (median 6.0) at 2 weeks in patients dependent at discharge (n = 34). About 20% of these patients were continent. Their initial median Barthel index of 2 improved by a median of 6 at discharge. Only five (15%) patients in this group went home. OPS was comparable with urinary incontinence for sensitivity (96% vs. 90%), specificity (36% vs. 39%) and accuracy (75% vs. 66%) in identifying stroke patients achieving independent living. OPS had a greater predictive value than urinary incontinence in identifying patients requiring institutional care (82% vs. 57%). OPS is a simple objective predictor of outcome in elderly stroke patients, suitable for everyday clinical use. It also can facilitate stroke research by identifying a 'middle group' of patients who would be most sensitive to changes in therapy or organization of stroke services.

Activities of Daily Living↗
PubMed1994

Indomethacin and cognitive function in healthy elderly volunteers.

1. Cognitive function was studied after single and multiple doses of indomethacin (I) and matched placebo (P) in 20 healthy elderly volunteers using a double-blind crossover design. 2. Arousal, attention, integration, coordination, memory and mood were investigated using a battery of psychomotor tests and the Hospital Anxiety and Depression Scale. Assessments were performed before and after the first and last doses of a 7 day course of medication. 3. Critical flicker fusion threshold fell by a mean of 1.96% on indomethacin compared with a 1.13% rise on placebo 5 h after the first dose (P = 0.029). A beneficial effect on choice reaction time latency (P = 0.012) was seen both after acute and continuing administration of indomethacin. Performance at the most discriminating level (level 3) of the paired word association test was significantly better following 8 days of treatment with indomethacin in the younger (55-65 year-old) age group (P = 0.001). 4. There was no significant difference in performance on the symbol-digit substitution test and the continuous attention task. No change was seen in hospital anxiety and depression scale scores. 5. These results suggest that performance on tests of sensorimotor coordination and short term memory may improve in healthy volunteers following indomethacin administration, whereas tests of attention and psychomotor speed remain unaffected. However, further controlled studies in rheumatic patients are needed to evaluate fully the psychomotor effects of indomethacin and other NSAIDs in clinical practice.

Aged↗
PubMed1993

The role of prognostic scores in targeting stroke rehabilitation in elderly patients.

OBJECTIVE: To determine the validity of clinically derived prognostic scores in targeting stroke rehabilitation in elderly patients. DESIGN, SETTING AND PARTICIPANTS: One-year prospective cohort study in 96 hospitalized stroke patients over 75 years of age from a well defined geographical area. MEASUREMENTS: Edinburgh prognostic score (incorporating measures of motor deficit, proprioception, and power), Orpington prognostic score (Edinburgh score modified to include a measure of cognition), and Barthel ADL scores were measured at 1, 2, and 4 weeks after stroke. These scores were correlated with outcome and patients' Barthel ADL score at discharge or at 16 weeks if still in hospital. RESULTS: Edinburgh prognostic score measured at 2 weeks correlated significantly with Barthel ADL score at discharge or at 16 weeks (r2 = 0.57, P < 0.001), and Orpington prognostic scores showed greater correlation (r2 = 0.89 vs 0.57), especially in patients with dementia (r2 = 0.81 vs 0.39). Barthel ADL scores at 2 weeks showed a weak correlation with Barthel ADL scores at discharge or 16 weeks (r2 = 0.58). Patients with Orpington Score < 3.2 were discharged within 3 weeks of stroke, whereas those scoring > 5.2 required long-term care. Most patients (90%) with Orpington Score of 3-5 were eventually discharged home although this was not always apparent on initial clinical assessment at the time of admission. CONCLUSIONS: The Orpington score when assessed at 2-weeks post-stroke is a useful prognostic indicator with special suitability for the elderly and may help to select patients most likely to benefit from stroke unit rehabilitation.

Activities of Daily Living↗
PubMed1993

The toxicity of drugs used for suicide.

Death from suicidal drug overdose differs from other forms of suicide in that the drugs are often prescribed by the patient's physician. In 1987, 3 of the 12 most commonly taken drugs in completed suicide were antidepressants (dothiepin, amitriptyline and imipramine). Antidepressants account for approximately 15% of all drug overdoses. The differences in toxicity between antidepressants have been measured using fatal toxicity indices, which relate the number of deaths and the amount of drug prescribed. Results from the United Kingdom covering the years 1975 to 1986 have shown that older tricyclic antidepressants have a fatal toxicity index 5 to 8 times higher than that of new antidepressants such as mianserin. The limitation of barbiturate prescribing has been followed by a fall in deaths from these drugs. Hopefully in the future it might be possible either to prescribe less toxic antidepressants or to identify the patients at greatest risk of drug suicide and to prescribe for them the least toxic drugs.

Adult↗
PubMed1993

Stroke in patients aged over 75 years: outcome and predictors.

The outcome and predictors of stroke rehabilitation were studied prospectively in 96 patients (mean age 81.3 +/- 5.4 years) admitted to geriatric wards from a well-defined area over one year. Of these, 32 (33%) died (median survival 11 days), 52 (54%) returned home (median hospital stay 69 days) and 12 (13%) required long-term care (median hospital stay 164 days). Deaths and discharges showed a bimodal pattern; nearly 40% of the patients died or were discharged within 2 weeks of admission. Early death correlated with level of consciousness (P = 0.02), neurological deficit (P = 0.01) and prestroke Barthel scores (P = 0.04) on admission. Patients with right- rather than left-sided hemiparesis (P = 0.02), good motor power (P = 0.002) and without sensory deficit/inattention (P = 0.002) were discharged early. Discharge home was adversely affected by poor awareness of deficit (P = 0.02), hemianopia (P = 0.03) and incontinence (P = 0.02) assessed at 2 weeks. Stroke survivors with Barthel score < 6 and Mental Test Score < 4 at 2 weeks after stroke required long-term care.

Activities of Daily Living↗
PubMed1993

Improving stroke rehabilitation. A controlled study.

BACKGROUND AND PURPOSE: Assessment of stroke rehabilitation is complicated by the heterogeneity of patients and settings and by difficulties in disentangling effects of organization from effects of types and amounts of treatment input. METHODS: A prospective controlled study was undertaken in 245 stroke patients stratified into three groups according to prognosis and managed on a stroke rehabilitation unit (n = 124) or general medical wards (n = 121). Patients were randomly allocated to either setting 2 weeks after stroke and were comparable for baseline characteristics. RESULTS: Patients on general medical wards received more physiotherapy on average (16.2 +/- 7.2 versus 14.3 +/- 3.2 hours; P < .05) but similar amounts of occupational therapy (9.3 +/- 2.8 versus 9.5 +/- 3.2 hours) compared with stroke unit patients. More time was spent on individual rehabilitation on the stroke unit compared with general wards (P < .001). Functional abilities at discharge, destination of discharge, and length of hospital stay in patients with good prognosis were comparable in both settings. Patients with poor prognosis managed on general wards showed higher mortality (P < .05) and longer hospital stay (123.2 +/- 48.2 versus 52.3 +/- 19.8 days; P < .001), but functional abilities at discharge in survivors were comparable with those of stroke unit patients. Patients with intermediate prognosis had significantly better outcome on the stroke unit, with more patients being discharged home (75% versus 52%; P < .001), shorter average length of hospital stay (48.7 +/- 17.2 versus 104.6 +/- 28.6 days; P < .001), and better functional abilities at discharge (P < .05). CONCLUSIONS: Stroke units improve outcome and reduce hospital stay without increasing therapy time. Their effectiveness may be enhanced by patient selection.

Aged↗
PubMed1993

Staffing solutions: an in-house agency.

Cost-efficient, flexible labor and scheduling can be met within one's own organization through a professional staffing program. Conceptualization, implementation and evaluation of this in-house agency are detailed. In addition to meeting unit schedules, this program improved staff morale due to better coverage and compensation.

Cost-Benefit Analysis↗
PubMed1992

Infection in the elderly: studies with lomefloxacin.

Results of trials of lomefloxacin (400 mg once daily) in elderly patients with uncomplicated urinary tract infections, complicated urinary tract infections, acute bacterial exacerbations of chronic bronchitis, and as prophylaxis for transurethral surgical procedures (400 mg single dose) have been analyzed. In patients greater than or equal to 65 years of age with uncomplicated urinary tract infections, the bacterial eradication rate for lomefloxacin was 100%. In patients with complicated urinary tract infections, the bacterial eradication rate for lomefloxacin (92.2%) was statistically superior to comparator agents (84.9%, p = 0.012). In elderly patients with acute exacerbations of chronic bronchitis caused predominantly by gram-negative pathogens, lomefloxacin eradicated 85.2% of pathogens versus 73.8% for amoxicillin (p = 0.004). Lomefloxacin was 98% effective as a prophylactic agent in transurethral surgery. The bacteriologic and clinical efficacy of lomefloxacin was similar in young and elderly groups of patients. Lomefloxacin appears to be as effective as the comparator drugs in both young and elderly patients.

Aged↗
PubMed1991

Risks and benefits of therapy with flumazenil (Anexate) in mixed drug intoxications.

Flumazenil, the first specific benzodiazepine (BZD) antagonist, is one of the most innovative drugs to become available within the last few years. Flumazenil is indicated for the reversal of the centrally depressant effects of BZDs, in BZD-induced anaesthesia, in BZD sedation in intensive care and in patients comatose after drug overdoses including BZDs. A conference of experts experienced in the treatment of mixed drug overdoses by various means, including flumazenil, was held in order to try to reach a consensus regarding the safe use of flumazenil in this indication. From the knowledge and experience gained to date, it was concluded that flumazenil may be useful and safe in the treatment of suspected BZD and mixed drug overdoses, provided that the appropriate precautions are observed.

Antidepressive Agents, Tricyclic↗
PubMed1991

The pharmacokinetics of single oral doses of feprazone in healthy volunteers and elderly patients.

1. The pharmacokinetics of feprazone were studied in nine healthy volunteers and 10 elderly patients. 2. The mean elimination half-life of feprazone after a single oral dose in the healthy volunteers was 22.3 h, the mean apparent clearance 0.0051 1/h per kg and the mean volume of distribution 0.1681/kg. Corresponding values for the elderly patients were 22.6 h, 0.00561/h per kg and 0.1651/kg, which are not different from those for the volunteers. Thus, we were unable to detect any changes in feprazone pharmacokinetics which are related to age, or to the concurrent use of chronic medications, such as digoxin, diuretics, or hormones.

Adult↗
PubMed1990

ICI 141,292 (epanolol)--pharmacokinetics after single and repeated oral administration in the elderly with moderate renal impairment.

The pharmacokinetics of ICI 141,292 (epanolol) were studies over 3 days after a single oral 200 mg dose and then over 24 h after 12 consecutive daily oral 200 mg doses in 16 elderly subjects (aged 65 to 94 years) with moderate renal impairment (mean creatinine clearance 33.2 ml.min-1). There was wide inter-individual variability in peak plasma ICI 141,292 concentrations (Cmax) but no significant difference was found between mean Cmax after a single dose (44.3 ng.ml-1) and after 12 doses (37.4 ng.ml-1). The mean observed time to peak plasma ICI 141,292 concentration (tmax) after a single dose (1.61 h) did not differ significantly from that after 12 doses (1.75 h). On several occasions an analytically significant second peak in ICI 141,292 plasma concentration was observed. Following the peak(s), the plasma concentrations declined biphasically and a mean terminal phase plasma half-life (t1/2) of 28.3 (range 10.2-84.8) h was calculated after a single dose. The inter-individual variability in the area under the plasma concentration-time curve to 24 h AUC (0-24) was 54 fold but there was no significant difference between AUC (0-24) after a single dose (mean 226.0 ng.h.ml-1) and AUC (0-24) after 12 consecutive doses of ICI 141,292 (mean 232.4 ng.h.ml-1). The results show that consecutive daily administration of 12 oral doses of ICI 141,292 (200 mg) does not result in significant accumulation of drug in elderly subjects with moderate renal impairment.

Administration, Oral↗