Biomedical subjects
W M Garraway
Publications and source records attributed to W M Garraway.
High prevalence of benign prostatic hypertrophy in the community.
There is a strong suspicion among urologists that the prevalence of benign prostatic hyperplasia is higher than has been reported in clinical retrospective and necropsy studies. To find out the prevalence in one community all men aged 40-79 years registered with a group general practice were invited to complete a urinary symptom questionnaire and to undergo uroflowmetry. 705 men (77% of those eligible) participated. 214 men (84% of those invited) with signs and symptoms of prostatic dysfunction subsequently underwent transrectal ultrasonography (TRUS) for assessment of the volume (and by inference weight) of their prostates. The prevalence rate of benign prostatic hypertrophy (BPH), defined as enlargement of the prostate gland of equivalent weight greater than 20 g in the presence of symptoms of urinary dysfunction and/or a urinary peak flow rate less than 15 ml/s and without evidence of malignancy, was 253 (95% CI 221-285) per 1000 men in the community, rising from 138 per 1000 men aged 40-49 years to 430 per 1000 men aged 60-69 years. Thus apparently well men have a much higher frequency of BPH than was previously thought to be the case.
The quality of health services research in medical practice in the United Kingdom.
STUDY OBJECTIVE: The aim was to determine the scope and quality of published health services research concerned with medical practice in the United Kingdom. DESIGN: Scope of health services research was reviewed in articles published in 41 medical and public health journals in 1985. In random sample of 60 papers stratified by study design, 18 key research parameters were assessed for the quality of reporting and application in the studies. MAIN RESULTS: Over 80% of the research described in 246 articles was carried out by clinicians, mostly without acknowledged epidemiological or statistical assistance. More than half the studies were descriptive and only 17% were trials. In studies of hospital services, 4% covered long term care, in contrast to 67% concerned with inpatient care. One third of studies were conducted in general practice but only 10% of these included an assessment of clinical outcome. Important research parameters were often not reported; for example, response rates were missing in 52% of the studies, and comparability of cases and controls was not stated in 42% of relevant studies. Major inadequacies were found in the conduct of research, particularly in the selection of controls, allowance for confounding factors, objectivity of measurements, application of statistical tests, and conclusions reached. CONCLUSIONS: Published health services research concerned with medical practice in the United Kingdom is often conducted by clinicians without expert assistance. The quality of reporting and methods employed are deficient in many respects. Short training courses and other initiatives are required to enhance the quality of health services research in medical practice.
Hypertension management and stroke recurrence in a community (Rochester, Minnesota, 1950-1979).
The purposes of this study were to determine the trend in stroke recurrence over time and the effect of the prestroke blood pressure and management of hypertension on stroke recurrence in 1,680 incidence cases of stroke in residents of Rochester, Minnesota. Recurrent, primarily ischemic, stroke occurred in 267 cases. Stroke recurrence rates did not change during the 30-year period 1950-1979, in contrast to the decline in initial stroke incidence rates during this time. The overall stroke recurrence rates were less than 5%/yr, with cumulative rates of 5.7%, 19.3%, and 28.8% at 1, 5, and 10 years, respectively. Neither level of blood pressure before the first stroke nor management of hypertension had any apparent effect on stroke recurrence rates throughout the follow-up.
The changing pattern of hypertension and the declining incidence of stroke.
We studied whether changes in recognition and control of hypertension could be detected in the population of Rochester, Minn, from 1950 to 1979, a period in which a major decrease in the incidence rate of stroke was observed. Prevalence of diastolic blood pressure greater than or equal to 105 mm Hg fell 26% and 70% in men and women, respectively, between 1950 to 1959 and 1970 to 1979. Prevalence of pressures greater than or equal to 95 mm Hg decreased 5% in men and 58% in women. Increasing control of hypertension had an almost inverse linear relationship with the decreasing incidence of stroke in women, but the incidence of stroke in men did not decrease until ten years after improvement in the control of blood pressure began. We conclude that improvements in the detection and control of hypertension contributed to the declining incidence of stroke and that differences in management of hypertension could account for the difference between men and women in the trend of stroke decline.
Motor function after stroke.
Two hundred and eighty-seven patients who had survived an acute stroke for up to one week after admission to hospital were examined for loss of motor function in the arm and leg. There was a highly significant difference in problem-solving, spatial neglect, communication and postural function between those with significant motor loss and those without. There was no significant difference in memory impairment. Significant loss in motor power had a bad prognosis for functional outcome, length of stay in hospital and survival. If recovery was to occur, it had done so by eight weeks.
Neurologic examination in stroke rehabilitation: adequacy of its description in clinical textbooks.
Medical textbooks were reviewed to establish how well they presented those aspects of examination of the nervous system which are important in stroke rehabilitation. In addition, information was sought concerning such factors as the presence of instructions for the examiner and patient, grading and interpretation of results, and the importance of observer variation which can influence results of periodic neurologic examination of stroke patients. Study results demonstrated that the description of the neurologic examination which should be used in stroke rehabilitation was often incomplete and poorly defined. Material provided little interpretation for the physical signs which might be found. Factors which might influence results of periodic examination of the nervous system in stroke patients received little attention. There is an urgent need to develop a standardized form of clinical examination to meet the needs of practitioners who assess neurologic status in stroke rehabilitation.
The dichotomy of myocardial and cerebral infarction.
The Mayo Clinic medical record linkage and indexing system was used to examine changes in incidence and case fatality of myocardial infarction (MI), sudden unexpected death (SUD), and cerebral infarction (CI). The average annual age and sex adjusted incidence rates for MI (including SUD) and CI declined by 14% and 55%, respectively, between 1950-54 and 1975-79. The decline in the incidence of MI was due to a reduction in sudden unexpected death (SUD), greatest in younger persons. 30-day case fatality after MI declined from 50% to 35% during this period.
The use of health and social services in the management of stroke in the community: results from a controlled trial.
The use of hospital and community services during the follow-up of a controlled trial which evaluated the effectiveness of a stroke unit and medical units in the management of acute stroke in the elderly is described. Patients from the stroke unit received more health and social services compared with medical unit patients, particularly in the initial follow-up period. The use of services was not related to the functional outcome of patients at hospital discharge. No overall difference occurred between stroke unit and medical unit patients in hospital bed days used throughout the study.
The declining incidence of stroke.
A major decline in the incidence of stroke occurred in the population of Rochester, Minnesota, during the period 1945 to 1974. For every 100 first episodes of stroke that occurred per unit of population during the period 1945--49, only 55 occurred in the period 1970--74. Although the decline was present in both sexes and in all age groups, the reduction in rates was more pronounced in the elderly. There was no major change in age at onset. Analysis of cohorts born during successive five-year periods from 1865 to 1915 confirmed the decreasing incidence rate in all age groups.
Day case surgery for children.
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Functional assessment of patients undergoing day-care surgery for varicose veins or hernia: results from a randomised controlled trial.
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Limb fractures in a defined population. I. Frequency and distribution.
This population-based study revealed that 2,519 limb fractures occurring during a 3-year period produced an age-adjusted incidence rate for all limb fractures of 1,596 per 100,000 person-years. Fractures of the upper limb had a bimodal age distribution and were commoner than those of the lower limb, which had a J-shaped age distribution. The most frequent anatomic site was the lower end of the radius and ulna. Limb fractures occurred as solitary events in 93% of cases; only 4% were classified as open and more than half of the total were closed and undisplaced. Fractures were distributed evenly throughout all time periods of the day. The commonest place of fracture occurrence was the home, and the most important direct cause was falls, particularly in females. A wide range of sports activities were a major source of fractures, particularly in younger males. Underlying bone pathology was uncommon, other contributory causes being more important, particularly in the elderly. The increased ratio of metaphyseal to diaphyseal fractures with age indicated a relative loss of cancellous bone in the elderly, but no evidence was found to suggest that elderly women had reduced resistance of bone to impact forces in comparison with elderly men.
Limb fractures in a defined population. II. Orthopedic treatment and utilization of health care.
This study describes the orthopedic treatment and utilization of health care obtained by 2,333 patients in the population of Rochester, Minnesota, who suffered 2,519 limb fractures during the period 1969 through 1971. Overall, 24% of fracture occurrences required patient hospitalization, the remainder involving care on an ambulatory basis only. The mean number of physician visits was 4.5 per fracture, with the visits occurring during an interval of 103 days from the time of first evaluation. Fifteen percent of limb fractures were subject to at least one surgical operative procedure as part of their orthopedic treatment. The frequency of operative treatment increased markedly with patient age. Seventeen percent of patients with limb fractures received physiotherapy or occupational therapy or both, 4% were ambulatory patients, and the remainder were hospital inpatients. Fractures of the head and neck of the femur constituted only about 7% of fractures in the series, yet utilized an inordinate proportion of health care resources. Hip fractures were responsible for 27% of the hospital admissions, 52% of all bed days utilized, and 56% of the physiotherapy sessions.
The changing pattern of stroke.
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Day care after operations for hernia or varicose veins: a controlled trial.
Alternative systems of care after operations for varicose veins or hernia were compared in a total of 360 selected patients, of whom 121 were allocated to be managed in an acute ward for 48 h, 122 in a convalescent hospital for 48 h and 117 to be discharged directly home to the care of the district nursing sister and general practitioner. There were no deaths or major complications. Anaesthetic or surgical problems caused 5 patients (3 convalescent and 2 day care) to be retained in hospital on the day of operation. Minor complications were recorded in approximately one-third of the patients. The majority of these were effectively dealt with by the district nursing sister and only one-third of the complications needed the attention of the general practitioner. Two of the ward patients and 1 of the convalescent patients required readmission to hospital (1 per cent in all). No significant difference was demonstrated in the medical outcome between the three groups after operation. Day care was the most economical of the three systems of care. Inquiry into the patients' opinions elicited the highest proportion of favourable responses in the day care group.
Consumer acceptability of day care after operations for hernia or varicose veins.
The opinions of patients and of caring persons (usually relatives) were sought in this trial of different methods of providing care for 360 patients after operations for hernia or varicose veins. Analysis of patients' opinions suggested that day care was the most acceptable of the three types of care examined. The reactions of caring persons did not reveal any major criticisms or disadvantages.
Economic aspects of day care after operations for hernia or varicose veins.
In a trial of 360 patients with hernia or varicose veins, day care surgery provided an economic alternative to the provision of surgical aftercare either in the surgical wards of a district hospital or in a convalescent hospital. There was only slightly more work for general practitioners. Most of the additional work for the community services was carried out by district nurses, with an average contact time in the postoperative period of 325 minutes for day care patients, compared with 186 minutes and 204 minutes respectively for patients admitted for 48 hours to the surgical or convalescent wards. Day care produced estimated savings of 30 pounds compared with the costs of a 48-hour stay in the surgical wards, and savings of 22 pounds compared with a 48-hour stay in the convalescent wards.