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Biomedical subjects

R F Uhlmann

Publications and source records attributed to R F Uhlmann.

31 records · Page 2Linked to original sources
PubMed1984

Some treatment-withholding implications of no-code orders in an academic hospital.

To identify treatment-withholding intentions for 56 VA medicine inpatients who received a no-code order, 31 resident physicians who wrote the orders completed a checklist on which they indicated the interventions they intended to withhold from each patient. Review of patients' charts indicated that 24 (43%) contained no documentation of treatment limitation plans beyond the no-code order. To identify the general interpretations of no-code orders, "cross-covering" physicians indicated on a questionnaire the likelihood that they would withhold specific interventions from patients they were covering who had received a no-code order. Both the intention and interpretation of no-code orders were characterized by variability, and interpretation of the orders was characterized by uncertainty as well. Because of these discrepancies, we suggest a no-code order which provides greater specificity for individual patients.

Documentation↗
PubMed1984

Fulfillment of patient requests in a general medicine clinic.

For initial visits to a longitudinal-care internal medicine clinic, we elicited patients' requests for problems to be addressed, measured patients' assessments of request fulfillment, and determined correlates of request fulfillment. Patients rated all requests as fulfilled in 62 of 71 cases (87 per cent). Fewer pre-encounter patient-reported problems, discretionary features of the doctor-patient encounter including more time spent eliciting history of present illness, and greater completeness of laboratory testing were associated with request fulfillment.

Consumer Behavior↗
PubMed1984

Epidemiology of no-code orders in an academic hospital.

Relatively little is known about the circumstances in which decisions not to resuscitate, documented by no-code orders, are made. By review of medical records and interviews with house staff officers, we studied all medical service patients for whom no-code orders were written and those patients who received cardiopulmonary resuscitation (CPR) between October and December 1980 in the Portland Veterans Administration Medical Center. Among 1,780 patients admitted, 56 (3.1%) received no-code orders. All decisions were reportedly made by groups of individuals usually including the intern (98% of cases) and resident (93%), but not attending physician (39%). Many patients (43%) were disoriented or obtunded at the time of the no-code decision and 80% of oriented patients did participate in the decision.Thirty-seven of the 56 no-code patients died during the study. Comparing these with 20 patients who experienced cardiac arrest and did receive CPR, cancer, dementia, incontinence, non-ambulatory, divorced-separated and unemployed statuses were all more prevalent among no-code patients (P<.05).No-code orders in this Veterans Administration teaching hospital were relatively common and appeared to be made collectively. Participation of patients and attending physicians in the decisions, however, was limited.

Decision Making↗
PubMedDate not supplied

Relationship of patient request fulfillment to compliance, glycemic control, and other health care outcomes in insulin-dependent diabetes.

Patients' perceptions of the extent to which their health care needs have been met may affect compliance with prescribed health behaviors and related health outcomes. The authors examined the relationships of "patient request fulfillment" to patient compliance, glycemic control, and several other health care outcomes in 51 adult outpatients with insulin-dependent diabetes mellitus. On average, patients retrospectively cited 4.5 long-term requests, of which over three-fourths were fulfilled. Fulfillment of these requests was significantly associated with patient satisfaction, perceived health status, fewer insulin reactions, and greater insulin injection time reliability (p less than 0.05), but not with several other measures of compliance. Higher patient request fulfillment at single visits was correlated, as hypothesized, with subsequent reduction in glycosylated hemoglobin, but this association was not statistically significant. These results suggest that patient request fulfillment is associated with several aspects of health behavior and health status in adults with insulin-dependent diabetes. Further studies are needed to confirm these observations and determine whether strategies to enhance patient request fulfillment can enhance health care outcomes.

Adult↗
PubMedDate not supplied

Quality of life and resuscitation decisions in elderly patients.

Quality of life considerations may be an important factor in medical decisions, but it is not known how well physician's assessments match those of their patients. The authors studied the assessments of elderly inpatients (n = 65) and their physicians (n = 50) concerning patient quality of life and resuscitation decisions for the patients' current health situations and for two hypothetical situations. Physicians rated current patient quality of life more negatively than did patients; differences ranged from 0.35 to 0.80 on a 5-point scale with end points labeled "very poor quality of life" and "possible to have good quality of life." Physicians were also less likely to favor resuscitation in the two hypothetical scenarios (p less than 0.01); differences ranged from 0.66 to 1.40 on a 5-point scale with end points labeled "definitely yes" and "definitely no." In both patient and physician groups, quality of life assessments were significantly correlated with resuscitation decisions for some situations but not for others. These results indicate that elderly patients and their physicians may differ on patient quality of life assessments and that these assessments may be associated with resuscitation decisions.

Aged↗
PubMedDate not supplied

Visual impairment and cognitive dysfunction in Alzheimer's disease.

OBJECTIVE: To determine whether impaired visual acuity is associated with dementia and cognitive dysfunction in older adults. DESIGN: Paired case-control comparisons of the relative frequencies of visual impairment in demented cases and nondemented controls. Cohort analyses of correlation between visual acuity and cognitive functioning in demented cases. SETTING: Internal medicine clinics at two academically affiliated medical centers. PARTICIPANTS: Eighty-seven consecutively selected patients greater than or equal to 65 years of age with mild-to-moderate, clinically diagnosed Alzheimer's disease (cases) and 87 nondemented controls matched to the cases by age, sex, and education. MEASUREMENTS AND MAIN RESULTS: The prevalence of visual impairment was higher in cases than in controls [unadjusted odds ratio for near-vision impairment = 2.7 (95% CI = 1.4, 5.2); unadjusted odds ratio for far-vision impairment = 2.1 (95% CI = 1.02, 4.3); odds ratios adjusted for family history of dementia, depression, number of medications, and hearing loss were 2.5 (95% CI = 1.1, 10.5) for near-vision impairment and 1.9 (95% CI = 0.8, 4.6) for far-vision impairment]. When further stratified by quartiles of visual acuity, no statistically significant "dose-response" relationship between vision impairment and dementia risk was observed. Among cases, the degree of visual impairment was significantly correlated with the severity of cognitive dysfunction for both near and far vision (adjusted ps less than 0.001). CONCLUSIONS: Visual impairment is associated with both an increased risk and an increased clinical severity of Alzheimer's disease, but the increased risk may not be consistent with a progressive dose-response relationship. Further studies are needed to determine whether visual impairment unmasks and exacerbates the symptoms of dementia or is a marker of disease severity.

Aged↗
PubMedDate not supplied

Physicians' attitudes toward tube feeding chronically ill nursing home patients.

OBJECTIVE: To determine attitudes of physicians toward the limitation of tube feeding in chronically ill nursing home patients and the influences of patient preferences and other patient and physician variables on these decisions. DESIGN: Questionnaire-based, mailed survey. Hypothetical case scenarios derived by fractional factorial design to determine the influences of patient and family preferences, age, life expectancy, physical and cognitive functioning; direct scaling to determine the influences of legal and cost considerations. PARTICIPANTS: Randomly selected national samples of American Geriatrics Society and American Medical Association members (n = 141, participation rate 41%). MAIN RESULTS: Nearly all physicians indicated they would withhold (95%) or withdraw (92%) tube feeding in at least one of the 16 scenarios studied. Physician decisions were most highly associated with patient preferences, followed by family preferences, life expectancy, and cognitive status (p less than 0.02 to less than 0.001). When patients and families agreed, physicians concurred in 87% to 95% of the decisions. However, when patients and families disagreed, physicians concurred with patients in only 48% to 55% of the decisions. Increasing physician concern regarding legal and cost considerations was significantly associated with significantly higher and lower likelihoods of tube feeding, respectively (p less than 0.05). CONCLUSIONS: These results suggest that the majority of study physicians are willing to limit tube feeding in nursing home patients under some circumstances. Patient preferences appear to be the most important factor in these decisions, but may not be honored, especially if the wishes of patients and their families are not in concurrence.

Attitude of Health Personnel↗
PubMedDate not supplied

Validity and reliability of auditory screening tests in demented and non-demented older adults.

The validity and reliability of auditory screening tests were evaluated in 34 demented and 31 non-demented elderly outpatients. In reference to an audiometric gold standard (40-dB HL hearing loss in speech frequencies), 512-Hz and 1024-Hz tuning forks, finger rub, and whispered voice tests performed well (ROC curve areas = 0.82 to 0.94). Simultaneously high (greater than 0.80) sensitivities and specificities were achievable for all these tests in demented patients. In non-demented patients, however, only the whispered voice test achieved simultaneously high specificity and sensitivity. The most accurate rule for air conduction screening audiometry was the inability to hear greater than or equal to two of four 40-dB HL speech frequencies (sensitivity = 1.0, specificity = 0.75 in non-demented patients; sensitivity = 0.97, specificity = 0.74 in demented patients). Interobserver/test-retest reliability was generally high for tuning forks, finger rub, and whispered voice tests (range of intraclass correlation coefficients = 0.38 to 0.90), and was somewhat higher in demented than in non-demented patients. These results suggest that some of the simple, traditional methods of auditory screening may have considerable validity and reliability in demented and non-demented older adults.

Aged↗
PubMedDate not supplied

Measuring preferences for health states worse than death.

Previous research indicates that persons assigning values to ranges of health states consider some states to be worse than death. In a study of decisions regarding life-sustaining treatments, the authors adapted and assessed existing methods for their ability to identify and quantify preferences for health states near to or worse than death in a population of well adults and nursing home residents. The cognitive burdens involved in these decisions were also evaluated. Hypothetical health states based on six attributes of functional status were constructed to describe severe constant pain, dementia, and coma. The methods of rank order, category scaling, time tradeoff, and standard gamble were adapted to quantify states worse than death. Cognitive burden was assessed using completion rates, interviewer assessments, respondents' self-reporting, and investigators' evaluations. For both respondent groups, all methods showed similar degrees of cognitive burden for those able to complete the tasks and were similar in their ability to identify and quantify preferences. The majority of nursing home residents, however, were unable to complete or comprehend the measurement tasks. Most respondents evaluated their current health and severe constant pain as better than death; dementia and coma were more often considered equal to or worse than death. These results indicate that respondents can and do evaluate some health states as worse than death. The authors recommend systematic inclusion of states worse than death to describe a more complete range of preference values and routine assessment of the cognitive burdens of assessment techniques to evaluate methodologies.

Adult↗