Randomized trial of a warfarin communication protocol for nursing homes: an SBAR-based approach

Background

More than 1.6 million Americans currently reside in nursing homes. As many as 12% of them receive long-term anticoagulant therapy with warfarin. Prior research has demonstrated compelling evidence of safety problems with warfarin therapy in this setting, often associated with suboptimal communication between nursing home staff and prescribing physicians.

Methods

We conducted a randomized trial of a warfarin management protocol using facilitated telephone communication between nurses and physicians in 26 nursing homes in Connecticut in 2007-2008. Intervention facilities received a warfarin management communication protocol using the approach “Situation, Background, Assessment, and Recommendation” (SBAR). The protocol included an SBAR template to standardize telephone communication about residents on warfarin by requiring information about the situation triggering the call, the background, the nurse's assessment, and recommendations.

Results

There were 435 residents who received warfarin therapy during the study period for 55,167 resident days in the intervention homes and 53,601 in control homes. In intervention homes, residents' international normalized ratio (INR) values were in the therapeutic range a statistically significant 4.50% more time than in control homes (95% confidence interval [CI], 0.31%-8.69%). There was no difference in obtaining a follow-up INR within 3 days after an INR value ≥4.5 (odds ratio 1.02; 95% CI, 0.44-2.4). Rates of preventable adverse warfarin-related events were lower in intervention homes, although this result was not statistically significant: the incident rate ratio for any preventable adverse warfarin-related event was .87 (95% CI, .54-1.4).

Conclusion

Facilitated telephone communication between nurses and physicians using the SBAR approach modestly improves the quality of warfarin management for nursing home residents. (Registered on ClinicalTrials. gov; URL:http://clinicaltrials.gov/. Registration number: NCT00682773).     

Prevalence and quality of warfarin use for patients with atrial fibrillation in the long-term care setting.

BACKGROUND: Evidence-based clinical practice guidelines recommend the use of warfarin sodium for stroke prevention in most patients with atrial fibrillation (AF) who do not have risk factors for hemorrhagic complications, irrespective of age. METHODS: The medical records of all residents of a convenience sample of long-term care facilities in Connecticut (n = 21) were reviewed. The percentages of all patients with AF (AF patients) and ideal candidates for warfarin therapy (ie, AF patients with no risk factors for hemorrhage) who received warfarin were determined; for patients receiving warfarin, the percentage of days spent in the therapeutic range of international normalized ratio (INR) values (2.0-3.0) was also assessed. The relationship between receipt of warfarin and the presence of stroke and bleeding risk factors was assessed in multivariate models. RESULTS: Atrial fibrillation was present in 429 (17%) of the 2587 long-term care residents. Overall, 42% of AF patients were receiving warfarin. However, only 44 (53%) of 83 ideal candidates were receiving this therapy. In residents who received warfarin therapy, the therapeutic range of INR values was maintained only 51% of the time. The odds of receiving warfarin in the study sample decreased with increasing number of risk factors for bleeding and increased (nonsignificant trend) with increasing number of stroke risk factors present. CONCLUSIONS: Atrial fibrillation is very common among residents of long-term care facilities. Even among apparently ideal candidates, warfarin therapy is underused for stroke prevention in patients with AF. Prescribing decisions and monitoring related to warfarin therapy in the long-term care setting warrant improvement.     

The safety of warfarin therapy in the nursing home setting

Purpose

We examined the preventability of adverse warfarin-related events and potential adverse warfarin-related events (“near misses”) in the nursing home setting.

Methods

We performed a cohort study of all long-term care residents of 25 nursing homes (bed size range, 90-360) in Connecticut during a 12-month observation period. The total number of residents in these facilities ranged from 2946 to 3212 per quarter. There were 490 residents who received warfarin therapy. Possible warfarin-related incidents were detected by quarterly retrospective review of nursing home records by trained nurse abstractors. Each incident was independently classified by 2 physician-reviewers to determine whether it constituted a warfarin-related event, its severity, and its preventability. The primary outcome was an adverse warfarin-related event, defined as an injury associated with the use of warfarin. Potential adverse warfarin-related events were defined as situations in which the international normalized ratio (INR) was noted to be 4.5 or greater, an error in management was noted, but no injury occurred. We also assessed time in specified INR ranges per nursing home resident day on warfarin.

Results

Over the 12-month observation period, 720 adverse warfarin-related events and 253 potential adverse warfarin-related events were identified. Of the adverse warfarin-related events, 625 (87%) were characterized as minor, 82 (11%) were deemed serious, and 13 (2%) were life-threatening or fatal. Overall, 29% of the adverse warfarin-related events were judged to be preventable. Serious, life-threatening, or fatal events occurred at a rate of 2.49 per 100 resident-months; 57% of these more severe events were considered preventable. Errors resulting in preventable events occurred most often at the prescribing and monitoring stages of warfarin management. The percentages of time in the less than 2, 2 to 3, and more than 3 INR ranges were 36.5%, 49.6%, and 13.9%, respectively.

Conclusions

The use of warfarin in the nursing home setting presents substantial safety concerns for patients. Adverse events associated with warfarin therapy are common and often preventable in the nursing home setting. Prevention strategies should target the prescribing and monitoring stages of warfarin management.     

Depression in nursing home residents.

Although their extent remains unclear, major and minor depressions are widespread in the nursing home population. This statement appears intuitively to be correct when consideration is given to the inactivity, decline in functional competence, loss of personal autonomy, and unavoidable confrontation with the process of death and dying that are associated with nursing home placement. In addition, some nursing home residents have had previous episodes of depression or are admitted to the facility already dysthymic or with other chronic forms of the illness. Such circumstances provide a favorable culture for the development and persistence of depressive illness. When the high frequency of other psychiatric disorders among nursing home residents is factored in, it is not surprising that long-term health care facilities have come to be regarded as de facto psychiatric hospitals. Nursing homes largely lack the treatment resources of psychiatric hospitals, however. Nursing home physicians are often unprepared to make psychiatric diagnoses, and a perfunctory annual psychiatric evaluation is insufficient to manage the complex depression syndromes of nursing home residents. Because nursing home psychiatrists typically work on a consultation basis, recommendations are not necessarily acted upon by the primary physicians. The consequences of undiagnosed and untreated depression are substantial. From the psychiatric perspective, the possibility that depression increases the risk for eventual development of permanent dementia highlights the importance of early identification for cases of reversible dementia. From the rehabilitation point of view, persistent depression among individuals with physical dependency following a catastrophic illness is associated with failure to improve in physical functioning. Depression can probably be linked to increased medical morbidity in nursing home residents, a relationship that also has been suggested for elderly medical inpatients. If so, the use of nursing time and other health-care facility services would be greater for depressed than nondepressed residents, and financial costs would be higher as well. Finally, recent data point to increased mortality in nursing home residents with major depressive disorder. It is apparent that depression in long-term care facilities is a condition with doubtful prognosis and negative medical, social, and financial consequences. The highest costs of all may be paid by nursing home residents who experience the unrelieved suffering of depressive illness. Only epidemiologic research using standard diagnostic criteria and direct resident assessment will adequately establish the magnitude of the need for intervention among depressed residents in long-term care.(ABSTRACT TRUNCATED AT 400 WORDS)     

Opinion survey of nursing or caring staff at long-term care facilities about end-of-life care provision and staff education

Although long-term care facilities are expected to assume a growing responsibility in caring for the dying elderly, research in this area is still in its early stages. The present study aims to explore the educational and support needs of nursing home care staff in comparison with geriatric hospital, which provide 24-h physician service. The subjects in this study were caring staff of 45 long-term care facilities in Nagoya City as of December 2006. Data was collected through questionnaires covering the following: (i) possible barriers to end-of-life care provision at own facilities and (ii) areas in which a need for education was perceived. One thousand and fifty nine staff responded. Approximately three-fourths of the staff felt that additional staff, physician or nurse available 24 h, and staff education were crucial in the provision of end-of-life care at their facilities. Dementia care, physical care, communication with residents and families, psychological aspects of dying, and pain/symptom control were listed as the five items deemed most important to address. This study indicated that nursing and caring staff recognize a need in 24-h medical service and hospital involvement of end-of-life care provision at their facilities, and that staff are eager to be educated concerning end-of-life.     

Physician communication with family caregivers of long-term care residents at the end of life

OBJECTIVES: To assess family perceptions of communication between physicians and family caregivers of individuals who spent their last month of life in long-term care (LTC) and to identify associations between characteristics of the family caregiver, LTC resident, facility, and physician care with these perceptions. DESIGN: Retrospective study of family caregivers of persons who died in LTC. SETTING: Thirty-one nursing homes (NHs) and 94 residential care/assisted living (RC/AL) facilities. PARTICIPANTS: One family caregiver for each of 440 LTC residents who died (response rate 66.0%) was interviewed 6 weeks to 6 months after the death. MEASUREMENTS: Demographic and facility characteristics and seven items rating the perception of family caregivers regarding physician-family caregiver communication at the end of life, aggregated into a summary scale, Family Perception of Physician-Family caregiver Communication (FPPFC) (Cronbach alpha=0.96). RESULTS: Almost half of respondents disagreed that they were kept informed (39.9%), received information about what to expect (49.8%), or understood the doctor (43.1%); the mean FPPFC score (1.73 on a scale from 0 to 3) was slightly above neutral. Linear mixed models showed that family caregivers reporting better FPPFC scores were more likely to have met the physician face to face and to have understood that death was imminent. Daughters and daughters-in-law tended to report poorer communication than other relatives, as did family caregivers of persons who died in NHs than of those who died in RC/AL facilities. CONCLUSION: Efforts to improve physician communication with families of LTC residents may be promoted using face-to-face meetings between the physician and family caregivers, explanation of the patient's prognosis, and timely conveyance of information about health status changes, especially when a patient is actively dying.     

Development of a self‐sustaining speech pathology service for residents in rural aged care facilities

Objective: The literature suggests that approximately 90% of residents in aged care facilities have communication difficulties and between 40 and 60% of residents experience dysphasia. The ability of residents to attend outpatient clinics or private consultation, especially in a rural setting, is severely restricted. In an attempt to address this service gap a speech pathology service for residents in rural aged care facilities was developed and trialed over a 12‐month period. Method: Thirty aged care facilities in the Northern Rivers Area of New South Wales (NSW) agreed to participate in the trial. Results and Conclusion: An analysis of the first 9 months of data collected showed 331 resident consultations, 94 general practitioner (GP) consultations, and 111 education sessions showed that the quality of life of residents was greatly improved. As well, the skills, knowledge and the overall provision of service provided by GPs, nursing and allied health staff to residents of aged care facilities was greatly enhanced. The speech pathology service also proved to be financially self‐sustainable and was able to generate income for: (i) GPs through improved access to Enhanced Primary Care (EPC) funding; and (ii) aged care facilities through significant movements within the Resident Classification Scale.     

Physicians’ attitudes toward tube feeding chronically III 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<0.02 to <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<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. Supported by grants from the Hartford and Dana Foundations and by National Institute on Aging Academic Award number K08 AG00265 (Dr. Uhlmann).     

Physicians "missing in action": family perspectives on physician and staffing problems in end-of-life care in the nursing home

OBJECTIVES: To understand the roles of physicians and staff in nursing homes in relation to end-of-life care through narrative interviews with family members close to a decedent. DESIGN: Qualitative follow-up interviews with 54 respondents who had participated in an earlier national survey of 1,578 informants. SETTING: Brown University interviewers conducted telephone interviews with participants throughout the United States. PARTICIPANTS: The 54 participants agreed to a follow-up qualitative interview and were family members or close to the decedent. MEASUREMENTS: A five-member, multidisciplinary team to identify overarching themes taped, transcribed, and then coded interviews. RESULTS: Respondents report that healthcare professionals often insufficiently address the needs of dying patients in nursing homes and that "missing in action" physicians and insufficient staffing create extra burdens on dying nursing home residents and their families. CONCLUSION: Sustained efforts to increase the presence of physicians and improve staffing in nursing homes are suggested to improve end-of-life care for dying residents in nursing homes.     

Physicians' attitudes toward mandatory workplace urine drug testing.

BACKGROUND--Workplace drug testing programs are being increasingly implemented in both the public and private sectors, and health care workers are unlikely to be excluded from such testing. METHODS--A survey of attending physicians' attitudes toward mandatory hospital-based urine drug testing was undertaken in a medium-sized, midwestern county. RESULTS--Seventy-four percent (272/368) of the sample responded. Seventy-two percent of the subjects believed physician drug use to be a minor or nonexistent problem, 38% lacked confidence in the testing procedure, and 60% believed that testing infringed on the physician's right to privacy; yet 87% would submit to testing if required by a hospital. Forty-five percent of respondents agreed with the policy of mandatory testing for physicians with hospital privileges, 34% disagreed, and 21% were uncertain. Respondents were more supportive of mandatory testing of other health care and non-health care occupations than for themselves. Support for testing was greatest for illicit drugs. If implemented, physicians preferred mandatory testing to be performed by hospital medical staff independent of hospital administration. CONCLUSIONS--Further education and discussion within the physician community appears to be necessary before widespread mandatory workplace urine drug testing of physicians is implemented.     

Initiating advance care planning on end-of-life issues in dementia: Ambiguity among UK and Dutch physicians

BackgroundIn dementia, advance care planning (ACP) of end-of-life issues may start as early as possible in view of the patient’s decreasing ability to participate in decision making. We aimed to assess whether practicing physicians in the Netherlands and the United Kingdom who provide most of the end-of-life care, differ in finding that ACP in dementia should start at diagnosis.MethodsIn a cross-sectional study, we surveyed 188 Dutch elderly care physicians who are on the staff of nursing homes and 133 general practitioners from Northern Ireland. We compared difference by country in the outcome (perception of ACP timing), rated on a 1–5 agreement scale. Regression analyses examined whether a country difference can be explained by contrasts in demographics, presence, exposure and role perceptions.ResultsThere was wide variability in agreement with the initiation of ACP at dementia diagnosis, in particular in the UK but also in the Netherlands (60.8% agreed, 25.3% disagreed and 14.0% neither agreed, nor disagreed). Large differences in physician characteristics (Dutch physicians being more present, exposed and adopting a stronger role perception) hardly explained the modest country difference. The perception that the physician should take the initiative was independently associated with agreeing with ACP at diagnosis.ConclusionsThere is considerable ambiguity about initiating ACP in dementia at diagnosis among physicians practicing in two different European health care systems and caring for different patient populations. ACP strategies should accommodate not only variations in readiness to engage in ACP early among patient and families, but also among physicians.     

Factors Associated with Potentially Preventable Hospitalization in Nursing Home Residents in New York State: A Survey of Directors of Nursing

OBJECTIVES: To describe characteristics of New York State nursing homes and identify factors associated with potentially preventable hospitalization in nursing home residents. DESIGN: Cross‐sectional survey. SETTING: Randomly selected nursing homes in New York State. PARTICIPANTS: One hundred forty‐seven directors of nursing (DONs). MEASUREMENTS: Data were collected using a Web‐based survey completed in January 2008. Variables included specific aspects of facility environment, nurse and aide services, resource availability, perceived determinants of hospitalization, and nursing home practice. Stepwise multivariate linear regression examined the associations between perceived determinants and potentially preventable hospitalization. RESULTS: Factors associated with potentially preventable hospitalization included presence of nursing staff trained to communicate effectively with physicians (P<.001); easy access to urgent laboratory results in less than 4 hours on weekends (P=.03); that physicians attempt to treat patients within the nursing home and admit to the hospital as a last resort (P<.001); higher reported proportion of residents enrolled in managed care plans for regular medical care (P=.04); higher perceived likelihood that illness will cause death (P=.03); perceived inadequate access by physicians to residents' and prior medical history, laboratory results, and electrocardiograms (ECGs) (P=.02), as reported by DONs. CONCLUSION: Efficient and effective care depends on continuity of communication between nurses and physicians and adequate access to patients' medical history, laboratory results, and ECGs. The following operational strategies may help institutions reduce potentially preventable hospitalizations: ensure effective communication between nursing staff and physicians regarding patients' condition; provide physicians with easy access to stat laboratory results in less than 4 hours on weekends and adequate access to the patient's medical history, laboratory results, and ECGs; and motivate physicians to treat residents within the nursing home whenever possible.     

Life-sustaining treatment. A prospective study of patients with DNR orders in a teaching hospital

We conducted a prospective survey of attending, resident, and intern physicians who had written a "do not resuscitate" (DNR) order for 93 patients in their care. After writing a DNR order, 11% of respondents would still use chest compression if their patient experienced a cardiopulmonary arrest. Many physicians did not plan to withdraw therapy except intensive care, but most physicians planned to withhold a spectrum of life-sustaining therapies, from hemodialysis (86%) to intravenous fluids (21%). Attending and house-staff physicians generally agreed on whether to withdraw a given therapy or not but frequently disagreed on whether to withhold a therapy or not. After patient discharge or death, 88 charts were reviewed. None of the 88 patients was coded. Physicians initiated 68 life sustaining therapies in 43 patients and discontinued 64 therapies in 34 patients; there was no change in management in 31 patients. We conclude that individual physicians interpret the DNR order differently. These orders often are associated with the discontinuation or noninitiation of life-sustaining therapies other than emergency CPR.     

Effect of a centralized clinical pharmacy anticoagulation service on the outcomes of anticoagulation therapy

CONTEXT: A growing body of reports has documented the ability of anticoagulation management services to help patients receiving warfarin therapy achieve better outcomes compared to the care provided by their personal physicians (ie, usual care). OBJECTIVE: To compare clinical outcomes associated with anticoagulation therapy provided by a clinical pharmacy anticoagulation service (CPAS) to usual care. DESIGN: Retrospective, observational cohort study, 6 months in duration. SETTING: Large nonprofit, group-model health maintenance organization. PATIENTS: A total of 6,645 patients receiving warfarin therapy were included in the final analyses (intervention group, 3,323 patients; control group, 3,322 patients). INTERVENTION: Anticoagulation therapy for patients in the intervention group was managed by a centralized, telephonic CPAS. Therapy for patients in the control group was managed in the usual manner by their personal physicians. MAIN OUTCOME MEASURES: The primary outcome was the occurrence of anticoagulation therapy-related complications. A secondary outcome was the proportion of time spent in the target international normalized ratio (INR) range for each patient. Cox proportional hazards regression analyses were used to examine the risk of complications in relation to the study group. RESULTS: Patients in the CPAS were 39% less likely to experience an anticoagulation therapy-related complication than were patients in the control group (hazard ratio, 0.61; 95% confidence interval, 0.42 to 0.88). The number of patients needed to treat to prevent an anticoagulation therapy complication was 52. Additional analyses revealed that improved outcomes associated with CPAS were mediated largely through improved therapeutic INR control. Patients in the CPAS group spent 63.5% of study period days within their target INR range compared to 55.2% in the control group (p < 0.001). CONCLUSIONS: A centralized, telephonic, pharmacist-managed anticoagulation monitoring service reduced the risk of anticoagulation therapy-related complications compared to that with usual care. The cumulative evidence supporting the superior care associated with implementing a pharmacist-managed anticoagulation monitoring service was sufficient to recommend widespread implementation.     

Pharmacy-managed anticoagulation: Assessment of in-hospital efficacy and evaluation of financial impact and community acceptance

Background: The dangers of thrombosis are well known and yet current therapy presents a paradox; effective methods of pharmacological anticoagulation are available, but underemployed. The risks associated with the use of anticoagulants, especially warfarin, and the requirement of meticulous dosing with subsequent vigilant monitoring provides some explanation for this discrepancy. Efforts have been made to address this incongruity and increase anticoagulation treatment while mitigating complications; these include the development of dosing nomograms, patient self-monitoring of anticoagulation status, and increased pharmacist participation in anticoagulation management. Although the latter option has proven effective in outpatient clinics, its in-hospital application has received less attention. Therefore, our primary goal was to review the published literature to evaluate the efficacy of in-hospital, pharmacy-managed anticoagulation. In addition, our secondary goals were to assess the potential financial benefit and community acceptance of such pharmacist management. Methods: Potentially relevant studies were identified by searching PubMed; however, because some pharmacy journals are not included in this database, we also used internet search engines to locate articles. We subsequently employed the Science Citation Index to find additional papers that had referenced articles identified by our initial searches. Results: Several pilot studies, focusing primarily on adherence to warfarin dosing guidelines, found general equivalence between pharmacist and physician management and specifically illustrated the potential benefit gained simply through adherence to protocols. Nevertheless, these studies frequently lacked appropriate statistical analysis and examined small, and often heterogeneous, patient groups. Larger comparative studies also possessed some of the same flaws; however, taken together the equivalence and, in some cases improvement, in patient outcomes (e.g., greater control of International Normalized Ratios and decreased length of hospital stay) that they demonstrated suggest the value of increased pharmacist participation in anticoagulation therapy. Studies using heparin-based anticoagulation reported similar positive findings and hence support the warfarin results. Both published studies examining financial implications of in-hospital pharmacy management indicated potential for considerable savings. Finally, although we identified no in-hospital studies of community acceptance, positive survey results indicted that the majority of physicians and patients accepted pharmacy-managed outpatient anticoagulation. Conclusions: The reported outcomes of pharmacy-managed in-hospital anticoagulation therapy appear at least equal, and sometimes superior, to those obtained through standard care; however, the lack of large well-designed trials prevents drawing definitive conclusions. Nevertheless, the continued and likely increased future need for anticoagulation in general and warfarin therapy in particular suggests that increased pharmacist involvement could enhance the quality of patient care.     

How physicians perceive hospitalist services after implementation: anticipation vs reality

OBJECTIVE: To determine whether internists' attitudes toward the hospitalist model change after implementation of a new inpatient service. DESIGN: Cross-sectional surveys performed in 1998 and 2000. SETTING: Tertiary care hospital in Boston, Mass. SUBJECTS: A total of 236 internal medicine board-certified physicians affiliated with Beth Israel Deaconess Medical Center. MAIN OUTCOME MEASURES: Responses to survey items regarding attitude toward inpatient care and the hospitalist model. We used multivariable models to determine factors associated with physician responses. RESULTS: Of physicians surveyed in 2000, 236 (69%) responded; 145 (61%) had also responded in 1998. The mean (SD) age of respondents was 46.4 (10.8) years; 157 (66.5%) were male; and 146 (61.9%) were primary care providers. In 2000, more physicians agreed that "caring for inpatients is an inefficient use of my time" (P<.001), and that "use of a hospitalist service improves quality of care" (P =.002). In 2000, more physicians disagreed that "use of a hospitalist service diminishes physician career satisfaction" (P<.001), and that "use of the hospitalist service adversely affects the physician-patient relationship" (P<.001). No differences were detected in responses to questions regarding patient satisfaction or overall career satisfaction. In multivariable models, older physicians were more likely to favor the hospitalist model; those with busier inpatient practices were more negative (P<.05 for each). Physician specialty or being a primary care provider was not associated with attitudes toward the hospitalist model. CONCLUSIONS: Following experience with a hospitalist system, physician attitude, including concerns regarding career satisfaction and relationships with patients, toward a voluntary hospitalist model improved. Future research should investigate whether the hospitalist model affects patient satisfaction and quality of care.     

Improving the quality of anticoagulation of patients with atrial fibrillation in managed care organizations: results of the managing anticoagulation services trial

Randomized trials have indicated that well-managed anticoagulation with warfarin could prevent more than half of the strokes related to atrial fibrillation. However, many patients with atrial fibrillation who are eligible for this therapy either do not receive it or are not maintained within an optimal prothrombin time-international normalized ratio (INR) range. We sought to determine whether an anticoagulation service within a managed care organization would be a feasible alternative for providing anticoagulation care.We performed a multi-site randomized trial in six large managed care organizations in the United States. Subjects were aged 65 years or older and had nonvalvular atrial fibrillation. At each site, physician practices were divided into two geographically defined practice clusters; each site was randomly assigned to have one intervention and one control cluster. The intervention cluster received an anticoagulation service that satisfied specifications for high-quality anticoagulation care and was coordinated through the managed care organization. Control clusters continued with their usual provider-based care. We measured the proportion of time that warfarin-treated patients in each of the clusters (intervention and control) were in the target range for the INR at baseline, and again during a follow-up period.Five of the six selected sites succeeded at developing an anticoagulation service. Patients in the intervention and control clusters had similar demographic characteristics, contraindications to warfarin, and risk factors for stroke. Among patients (n = 144 in the intervention clusters; n = 118 in the control clusters) for whom data were available during the baseline and follow-up periods, the changes in percentages of time in the target range were similar for those in the intervention clusters (baseline: 47.7%; follow-up: 55.6%) and in the control clusters (baseline: 49.1%; follow-up: 52.3%; intervention effect: 5%; 95% confidence interval: -5% to 14%; P = 0.32).Although it was feasible in a managed care organization to implement anticoagulation services that were tailored to local circumstances, provision of this service did not improve anticoagulation care compared with usual care. The effect of the anticoagulation service was limited by the utilization of the service, the degree to which the referring physician supports strict adherence to recommended target ranges for the INR, and the ability of the anticoagulation service to identify and to respond to out-of-range values promptly.     

Hospice and palliative care in nursing homes

This article reviews the challenges inherent in providing high-quality palliative care to dying nursing home residents and summarizes the efforts to address these challenges. It is suggested that a stronger physician presence and oversight of physicians knowledgeable in palliative care in nursing homes are needed to improve the quality of end-of-life care in nursing homes.