Biomedical subjects

D M Lyle

Publications and source records attributed to D M Lyle.

16 recordsLinked to original sources

PubMed1995

Medical care of doctors.

AIM: To describe doctors' attitudes towards their own medical care. METHODS: Postal survey asking 2564 doctors about their access to, and use of, medical services. The sample, 14% of all New South Wales doctors, was randomly selected from the NSW Register of Medical Practitioners. To ensure anonymity, non-respondents were not followed up. RESULTS: The response rate was 44%. Only 42% of respondents had a general practitioner and most had self-prescribed medication. Nineteen per cent reported marital disturbances, 18% emotional disorders, 3% alcohol problems and 1% drug abuse, but not many had discussed these problems with their doctor. Twenty-six per cent had a condition warranting a medical consultation but felt inhibited about consulting a doctor. CONCLUSION: Many doctors lack adequate medical care. RECOMMENDATIONS: We recommend that doctors have their own general practitioner, avoid "corridor consultations" and not self-prescribe drugs that affect mental function. Teaching of appropriate help-seeking responses should be part of medical education.

Attitude of Health Personnel↗

PubMed1994

Heat exhaustion in The Sun-Herald City to Surf fun run.

OBJECTIVE: To investigate the relationship between motivational factors and physical and biological causes of heat exhaustion in fun run entrants. DESIGN AND SETTING: Case-control study, The Sun-Herald City to Surf fun runs in Sydney in 1991 and 1992. PARTICIPANTS: There were 63,732 race entrants who completed the run and received a finishing time; 79 runners with heat exhaustion and 310 age, sex and performance matched controls were enrolled in the study. MAIN OUTCOME MEASURE: A diagnosis of heat exhaustion was made if a runner collapsed and, when first receiving medical care, had a rectal temperature of 38 degrees C or higher. RESULTS: Two readily identifiable groups of runners were at high risk of heat exhaustion--accomplished non-élite (preferred) runners and runners of good ability (Group A). The attack rate was highest among accomplished non-élite runners, but a combination of a relatively high rate and the large number of entrants in Group A runners accounted for most cases. Four major risk factors for heat exhaustion were identified: motivation to exceed previous performance targets; failure to drink fluids during the run; failure of trained runners to acclimatise for the race by training in the warmer parts of the day; and previous history of heat exhaustion. CONCLUSION: Information from this investigation will enable more effective targeting of educational prevention programs in The Sun-Herald City to Surf fun run and provide baseline data for monitoring the effectiveness of these programs to modify high risk behaviour by participants.

Adolescent↗

PubMed1994

Cost effectiveness of accelerated rehabilitation after proximal femoral fracture.

A randomised controlled trial comparing an accelerated rehabilitation program after proximal femoral fracture with conventional care and rehabilitation was conducted with 252 elderly patients treated at an Australian general hospital in 1989/1990. This paper presents a cost-effectiveness analysis of the accelerated rehabilitation program. The measure of cost was all direct costs of treatment and subsequent care (medical and non-medical) incurred during the 4 months after fracture. Effectiveness was defined as whether the patient returned to semi-independent living; or if moderately or severely disabled prior to the fracture to the premorbid level of physical independence. The cost for treatment up to 4 months after fracture was estimated at A$ 10,600 per accelerated rehabilitation patient and A$ 12,800 per conventional care patient (1990 Australian dollars, A$). Thus, accelerated rehabilitation releases resources equivalent to approximately 17% of costs for treatment per patient. When cost effectiveness is considered, the potential cost savings rise to 38% per recovered patient.

Activities of Daily Living↗

PubMed1992

Mass media-led antismoking campaign can remove the education gap in quitting behavior.

This study investigated whether the effective mass media-led antismoking campaigns in Australia had the traditional differential effect across educational levels. Our population surveys included random samples of 12,851 people before the campaign and 11,609 several years after the campaign had started. No statistically significant differences were found in quitting across education levels in three of the four subgroups. Mass media-led antismoking campaigns may play an important role in getting the antismoking message to the less educated.

Adult↗

PubMed1991

Trauma studies.

Explore the source record for details and available documents.

Ambulatory Care↗

PubMed1991

Regionalization of trauma services in western Sydney: predicted effect on ambulance and hospital utilization rates.

A previous study has demonstrated the effectiveness of ambulance staff in identifying the majority of trauma victims who warrant admission to a Level 3 Hospital. This paper applied the results of that study in order to estimate the likely effect of a system of bypass whereby these identified patients are transported to a Level 3 hospital rather than the nearest Level 1 or 2 Hospital. Under the proposed plan whereby both Westmead and Liverpool Hospitals would be granted Level 3 status, the effect of Westmead would be negligible. However, Liverpool's caseload would increase (25% for total admissions, 136% for serious admissions) and, consequently, its level of resources would need to be upgraded before this plan can be put into action. Meanwhile, Level 1 and 2 hospitals would see little change to total patient admissions, although there would be a substantial drop in serious admissions (-63%). Under the proposed system, the effects on the Ambulance Service would also be negligible in terms of both the number of transports and total transport hours. However, the nature of these transports would change. More time would be required in bypass cases, although this would be compensated for by a corresponding fall off in interhospital transfers (28% decline in time spent on transfers). Ultimately, this means that patients would be getting to the hospital of definitive care much sooner. These results have implications for the development of trauma services in other sectors.

Ambulances↗

PubMed1990

Services and cost of hospitalization for children and adolescents with insulin-dependent diabetes mellitus in New South Wales.

Data on services for Australian children and adolescents with diabetes are limited. The purpose of the present study was to examine the availability, utilization and some of the costs of services for persons of less than 20 years of age with insulin-dependent diabetes mellitus in New South Wales, and to make recommendations for future services. The numbers of prevalent and incident cases of insulin-dependent diabetes mellitus in the zero- to 19-years' age-group in each of the health regions of the State were estimated using data from the insulin-dependent diabetes mellitus register of the Southern Metropolitan Health Region. Information on the available services for young persons with diabetes was obtained from doctors and diabetes educators around the State, and on the utilization of services in the Southern Metropolitan Health Region from interviewing the families of persons whose names are listed in the diabetes register. An estimated range of the annual direct cost of hospital admissions for diabetes in the zero- to 19-years' age-group in New South Wales was calculated by use of the data collected from the diabetes register, the hospital separation data from the NSW Department of Health, the NSW Department of Health estimated bed-day cost and the estimated average cost of a bed day for diabetic patients at The Children's Hospital Camperdown. Services for children and adolescents with insulin-dependent diabetes mellitus in this State are most comprehensive in central Sydney. However, even these excellent services are not utilized fully by the children and their families. The annual cost of hospitalization for diabetes in the zero- to 19-years' age-group in New South Wales is estimated to be approximately +1.5 million. There needs to be an equally high standard of care for all diabetic children in the State; however, the utilization of services, as well as the services themselves, need to be improved and the cost-effectiveness of new services needs to be evaluated.

Adolescent↗

PubMed1990

Trauma triage in western Sydney: results of a pilot study.

A pilot study of the effectiveness of prehospital triage of trauma patients was carried out in a western Sydney between February and July 1988. Triage guidelines were developed to identify seriously injured persons at the incident site who might warrant admission to a Level 3 Trauma Service Hospital (Trauma Centre), as part of the NSW Department of Health trauma services plan. The study results were based on 64% of ambulance trauma transports for which a triage decision was provided. Of trauma transports studied, 3.7% had injuries serious enough to warrant admission to Level 3 Trauma Service Hospital. Ambulance officers correctly triaged 77% of these cases in the field. However, 62% of trauma transports triaged 'severe' or 'critical' did not have injuries serious enough to warrant admission to a Level 3 Trauma Service Hospital. Nevertheless, the triage guidelines compared favourably with similar instruments used elsewhere. Based on the performance of the triage guidelines it was concluded that the introduction of a regionalized trauma service in metropolitan NSW with local bypass is possible.

Adolescent↗

PubMed1990

Counting heads: estimating traumatic brain injury in New South Wales.

The public health problem of head injuries contributes to considerable morbidity in the community and is the commonest cause of death in young adult Australians. However, estimating the incidence of head injury has been difficult, and has varied between countries and over time. This paper critically appraises the methodological issues contributing to head injury/brain injury incidence estimates, in particular case definition, differing data sources, and methods of case ascertainment. The most appropriate definition from a methodological service provider perspective is one which clearly distinguishes between potential and actual brain injury. The results from a study which used the most accurate methods have been extrapolated to NSW, and reduce the estimated brain injury incidence in NSW from a reported 392 to 180 per 100,000 incident cases per year. This revised estimate implies that in 1990 there will be about 10,500 new cases of traumatic brain injury, of which an estimated 400 will result in serious physical or mental disability. These estimates were originally calculated to enable the development of an appropriate level of health service provision for brain-injured persons through the NSW Brain Injury Program.

Brain Injuries↗

PubMed1989

Incidence and prevalence of insulin-dependent diabetes mellitus in the zero- to 19-years' age-group in Sydney.

A population-based register of cases of insulin-dependent diabetes mellitus in the zero- to 19-years' age-group was established in the Southern Metropolitan Health Region of Sydney. The aims of the register were to provide accurate incidence and prevalence data for comparison with those of studies from elsewhere in the world and to evaluate diabetes services, morbidity and compliance with self-care regimens. This article presents the incidence and prevalence data. In the Southern Metropolitan Health Region, the annual incidence of insulin-dependent diabetes mellitus per 100,000 population who were aged zero to 19 years, rose from 10.3 cases in 1984 to 14.8 cases in 1987, and in the zero- to 14-years' age-group, it rose from 13.6 cases per 100,000 population in 1984 to 19.4 cases per 100,000 population in 1987; the increases were not statistically significant. The prevalence in the zero- to 19-years' age-group was 0.80 cases per 1000 population, and in the zero- to 14-years' age-group, it was 0.74 cases per 1000 population on February 1, 1986. Age-specific incidence rates were calculated for the years 1984-1987. Incidence peaks occurred at the ages of six years, 10 years and 12-13 years.

Adolescent↗

PubMed1987

Implementing an innovative rehabilitation programme in an acute care hospital.

There have been various proponents of the advantages of early intensive rehabilitation programmes for improved patient outcome. This suggests that rehabilitation should commence whilst patients are in standard wards of acute care hospitals, rather than the usual practice of waiting until they are transferred to a rehabilitation unit or rehabilitation hospital. For effective implementation of such programmes it is important to consider the organization of personnel required and the implications for efficient delivery of services. This paper reports the experiences of implementing such a programme.

Arousal↗

PubMed1986

Clinical course and outcome of severe head injury in Australia.

The records of 159 severely head-injured patients (all in coma for longer than 6 hours) from Sydney, Australia, were studied. The clinical course, charted over a 2-week period, indicated that 60% of deaths occur by Day 3 and that 12% of patients remain in coma (Glagow Coma Scale (GCS) score less than 7) for more than 2 weeks. Overall, at long-term follow-up review more than 2 years after injury, 51% of patients were dead, 7% were severely disabled or vegetative, and 42% had a good to moderate recovery. Outcome of the patients in prolonged coma was assessed separately, with only one-third making a good or moderate recovery; two-thirds of the severely disabled patients came from this group. The high proportion of poor outcomes associated with prolonged coma suggests that this group of patients should be specifically targeted in research. One appropriate intervention with this group would be the restructuring and intensification of early rehabilitation. However, the GCS score lacks the precision needed for this type of study, and a better measure of recovery should be developed.

Adult↗

PubMedDate not supplied

Relatives as lay-therapists for the severely head-injured.

Although the need for an integrated approach to the management of the head-injured patient has been recognized, and the concept of incorporating the family in the rehabilitation treatment programme suggested, there is minimal documentation of how the services of family members can be utilized to optimal effect. At a large university teaching hospital in Sydney, Australia, an early intensive rehabilitation programme was pretested on 37 patients during 1984-85. The pretest was to identify the extent to which relatives could contribute input as lay-therapists to such a programme. The findings indicate that relatives can make a major time commitment to providing therapy, but that to avoid harm to both patients and relatives certain safeguards need to be enforced. These experiences and resultant recommendations may have a bearing on the organization of rehabilitation programmes for other categories of patient.

Adolescent↗

PubMedDate not supplied

The effectiveness of coma arousal intervention.

Thirty-one patients who were in coma or persistent vegetative state two weeks after sustaining a severe head injury were entered into a coma arousal programme. The coma arousal protocol called for a sequence of vigorous multisensory stimulations to be applied to the patient by a relative for up to eight hours a day for seven days a week. An independent study team monitored two patient outcomes, the time taken to obey a simple command on two consecutive occasions 24 hours apart and patients' score on the Glasgow Outcome Scale 10-12 months post-injury. Outcomes were compared with an historical reference group chosen from the literature, consisting of 135 similarly classified patients. Differences between the pilot study and the reference group patients on initial characteristics suggested that the pilot study patients might have the more favourable outcomes, independent of treatment effect. The sample size was sufficient to detect a 40% improvement in recovery rate. No significant improvements were noted in either the time to obey a simple command (p greater than 0.2) or in the Glasgow Outcome Scale (p greater than 0.25), although the observed difference in the latter group was 11% in favour of the pilot study patients. This study was unable to find any evidence that coma arousal, for all its arduous patient contact, had a markedly better outcome compared with conventional treatment.

Adolescent↗

PubMedDate not supplied

Outcome following physical trauma: a comparative approach.

This study aimed to examine physical and psychosocial changes after injury in a range of trauma patients. Three groups were selected for comparison purposes: severely head-injured patients, patients with major trauma, and those with minor trauma (n = 102). Outcomes were assessed by questionnaires and inventories administered to a family member or friend of the trauma survivor, approximately 1 year post-injury. Severely head-injured patients were reported to have the greatest degree of difficulty in self-care and mobility, and in community living skills, followed by other major trauma patients and then minor trauma patients. Severely head-injured patients also had relatively more frequent reports of behavioural changes than the other two groups. None the less, more than half of the major trauma group were reported to act differently after the accident. The relative frequency of adverse outcomes in the major trauma group was greater than expected and should be the focus of further research.

Activities of Daily Living↗

PubMedDate not supplied

Accelerated rehabilitation after proximal femoral fracture: a randomized controlled trial.

This randomized controlled trial compared accelerated rehabilitation after surgical treatment of proximal femoral fracture with conventional care and was conducted in a general hospital in an outer urban area. Participating were 261 sequentially admitted patients over the age of 50 years who met predetermined inclusion criteria and all were followed up until death or 4 months after fracture. Patients who were treated with the accelerated rehabilitation programme had a 20% reduction in length of hospital stay. Improved physical independence (as measured by Barthel Index) was observed after fracture in accelerated rehabilitation programme patients with limited pre-existing disability. Non-nursing-home patients receiving accelerated rehabilitation were also less likely to be discharged to nursing-home care or die in hospital. Accelerated rehabilitation led to a substantial reduction in length of hospital stay with a modest short-term improvement in level of physical independence and accommodation status after discharge.

Activities of Daily Living↗