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Use of a global test for multiple outcomes in stroke trials with application to the National Institute of Neurological Disorders and Stroke t-PA Stroke Trial.

BACKGROUND: The National Institute of Neurological Disorders and Stroke (NINDS) held a workshop on statistical approaches to analysis of acute stroke trials that have multiple pre-specified outcomes. An objective was to plan for statistical analysis of the NINDS t-PA Stroke Trial, a randomized, double-blind, placebo-controlled trial of recombinant tissue plasminogen activator (rt-PA) for patients with acute ischemic stroke. Treatment success was defined as a "consistent and persuasive difference" in the proportion of patients achieving favorable outcomes on the Barthel Index, Modified Rankin Scale, Glasgow Outcome Scale, and National Institutes of Health Stroke Scale. The Data and Safety Monitoring Committee for the trial recommended this outcome because the committee did not believe that a positive result for a single outcome would provide sufficient evidence of efficacy. SUMMARY OF COMMENT: Workshop participants accepted the global test as a viable approach to testing the primary trial hypothesis. Clinician participants advocated categorizing outcomes as favorable/unfavorable, outcomes more clinically meaningful than continuous outcomes for evaluating a drug with potentially serious side effects. They agreed that a global test was appropriate for ischemic stroke when no single outcome is accepted. Hypothetical, special-case examples illustrate that highly correlated outcomes diminish the power of the global test. NINDS t-PA Stroke Trial data demonstrate the clinical interpretability of the global test. CONCLUSIONS: Workshop participants concluded that a global statistic should be used to test the trial's primary hypothesis accompanied by secondary tests of individual outcomes. Workshop participants recommended familiarizing the clinical/scientific community with the global approach.

Acute Disease↗

[Ischemic stroke associated with atrial fibrillation: the demographic and clinical characteristics and 30-day mortality in a hospital stroke registry. The European Community Stroke Project, Florence Unit].

The importance of atrial fibrillation (AF) as a risk factor for stroke is well known. The role of AF as a prognostic indicator of outcome in the acute phase of stroke has been less thoroughly investigated. We considered the 635 patients admitted over a 1-year period to two general hospitals in the area of Florence (Italy), in order to examine the demographic and clinical characteristics, risk factors of the patients presenting with stroke and AF, and to evaluate their post-stroke mortality rate. Of the 447 patients diagnosed as affected by ischemic stroke, 103 (23.05%) had AF. These patients were older, more often female, and had fewer risk factors for factors for atherosclerosis than patients without AF. The risk of death at 30 days after stroke was about double in patients with AF as compared to those without AF after control by Cox regression analysis for the effect of the other prognostic indicators of mortality. Demographic variations anticipated for the future in our country (progressive ageing of the population) would lead us to predict a proportional increase of these forms in the coming decades. Therapeutic measures of proven effectiveness for primary prevention of stroke in patients with AF seem to be taken to an extremely limited degree in Italy. Our data could thus serve as a stimulus to the reconsideration of therapeutic guidelines and may be useful for the establishment of health care policy orientations.

Acute Disease↗

Quality of life among stroke survivors evaluated 1 year after stroke: experience of a stroke unit.

BACKGROUND AND PURPOSE: We sought to study overall and domain-specific quality of life in stroke survivors 1 year after stroke and to identify variables that could predict quality of life after stroke. METHODS: We followed up for 1 year a cohort of 118 patients consecutively admitted to our stroke unit at San Carlos University Hospital in Madrid, Spain. The final series at 1-year follow-up consisted of 90 survivors (41 women and 49 men; mean age, 68 years; range, 32 to 90 years). A cross-sectional, descriptive design was developed. Patients completed a questionnaire that included socioeconomic variables, Hamilton Rating Scale for Depression, Sickness Impact Profile (SIP), Short Form 36, Frenchay Index, Barthel Index, Rankin Scale, and Scandinavian Stroke Scale. Independent variables were sex, age, functional status, motor impairment, and depression. We developed an ANOVA model for statistical analysis. RESULTS: We interviewed 79 patients with ischemic and 11 with hemorrhagic stroke. Thirty-eight percent of patients scored in the depressed range. Variables related to depression were status as a housewife, female sex, inability to work because of disability, and diminished social activity (P:<0.0001). Mean total SIP (24.3), SIP psychosocial dimension (27.5), and SIP physical dimension (21.2) were correlated with disability, female sex, motor impairment, and depression (P:<0.0001). CONCLUSIONS: Functional status and depression were identified as predictors of quality of life. Patients independent in their activities of daily living suffered from a deterioration of the psychosocial dimension of the SIP.

Activities of Daily Living↗

Measuring stroke impact with the stroke impact scale: telephone versus mail administration in veterans with stroke.

OBJECTIVES: The purpose of this study was to examine response rate, mode effects, and reliability of the Stroke Impact Scale (SIS) in a veteran stroke population using mail and telephone modes of administration. METHODS: Patients who had suffered a stroke were identified using national VA administrative data and International Classification of Diseases, 9th Revision codes in 13 participating Veterans Affairs hospital. Stroke was confirmed by reviewing electronic medical records. Patients were randomized to SIS administration by mail or telephone at 12-weeks after their stroke. Comparison of response rate, nonresponse bias, domain scores, administration costs, and instrument reliability were performed. RESULTS: Four hundred fifty-eight patients with stroke were identified, validated, and randomly assigned into 2 administration groups. No significant cluster effect was observed. Response rates for mail and telephone were 45% and 69%, respectively. Mail nonresponders were more likely to have had severe stokes, cognitive deficits, and be unmarried. No difference was observed between telephone responders and nonresponders. Responders in mail and telephone modes were not different, and the SIS score distribution did not indicate the presence of mode effects. Test-retest reliability was good to excellent in the mail group (0.77-0.99) except social participation (0.62). Test retest reliability was excellent in the telephone mode (0.90-0.99) except emotion (0.68). CONCLUSIONS: Telephone mode of survey administration yielded a higher response rate, less bias in responder selection, and higher test-retest reliability. The cost of telephone administration was 2 times the cost of mail. Mode effects in SIS score distribution were not observed in this study but additional research with larger sample sizes is needed to provide more definitive evidence.

Aged↗

Impact of stroke syndrome and stroke severity on the process of consent in the Third International Stroke Trial.

BACKGROUND: Obtaining informed consent for a patient's participation in a randomized trial of treatment for use in a medical emergency may be achieved in a variety of ways. We sought to assess the process of consent and to evaluate the influence of the patient's neurological deficit on the method used to obtain consent in the first 300 patients recruited into the Third International Stroke Trial (IST-3). METHODS: IST-3 is the first large-scale randomized controlled trial of intravenous thrombolysis in acute ischaemic stroke. The clinician could use one of four procedures to recruit the patient: written consent, witnessed consent, assent, or a waiver of consent. The patient's neurological deficits were recorded at baseline. We analysed the relationship between the neurological deficits at baseline and the consent procedure. RESULTS: The method of consent used was written consent in 71 subjects (24%), witnessed verbal consent in 30 subjects (10%), assent by a relative in 197 subjects (66%), and waiver of consent in 2 subjects (1%). Patients with severe neurological deficits (as measured either by their stroke syndrome or their lower predicted probability of being alive and independent at 6 months) were more likely to be recruited by assent. Patients able to give written consent had less severe strokes. CONCLUSIONS: Patients with non-lacunar hemispheric stroke syndromes or with a more severe neurological deficit were less likely to give written consent. Excluding such patients from acute stroke treatment trials would eliminate many otherwise eligible subjects, who have a poor predicted outcome without treatment and yet might benefit from acute treatments such as thrombolysis. Flexible consent procedures developed for IST-3 have made it feasible to recruit the target population.

Fibrinolytic Agents↗

Effect of intravenous recombinant tissue plasminogen activator on ischemic stroke lesion size measured by computed tomography. NINDS; The National Institute of Neurological Disorders and Stroke (NINDS) rt-PA Stroke Study Group.

UNLABELLED: Background and Purpose-When given within 3 hours of symptom onset, recombinant tissue plasminogen activator (rtPA) improves outcome 3 months after ischemic stroke. Prespecified secondary end points of the National Institute of Neurological Disorders and Stroke (NINDS) rt-PA Stroke Trial were CT lesion volumes in the 2 treatment groups (tPA and placebo) at 24 hours, 7 to 10 days, and 3 months after stroke. METHODS: -The trial included 2 independent studies, part I and part II, with identical methods of data collection. Before part I, uniform standards were established for CT scanning. CT images were obtained at baseline, 24 hours, 7 to 10 days, and 3 months after stroke onset and were reviewed centrally by reviewers blinded to treatment group and clinical findings. Since the individual studies were not powered to test for lesion volume differences, data from both parts of the trial were combined for all analyses. The primary analysis was conducted with the use of an intention-to-treat algorithm (including patients who died or were lost to follow-up). Measured lesion volume (excluding deaths and those lost to follow-up) was used as a secondary outcome in an exploratory analysis. RESULTS: -After tPA treatment, there was a trend toward a reduction in 3-month median lesion volume in the tPA group: 15 cm(3) (interquartile range, 2 to 87) compared with 24 cm(3) (interquartile range, 4 to 101) in the placebo group (P:=0.06, log model) with a reduction of 11% in cumulative lesion volume, computed with Smirnov's D statistic. After exclusion of deaths and those lost to follow-up, similar trends toward positive treatment effects were seen at all time points. CONCLUSIONS: -The direction of the effect of tPA on CT lesion volume at all time points was consistent with the observed clinical effects at 3 months. CT lesion volume may not be as sensitive a measure of treatment effect as clinical evaluation, at least as used in this study. An intention-to-treat analysis for the radiographic end point in this acute ischemic stroke clinical trial is a less biased approach to account for missing radiographic data than an analysis that uses only measured radiological data.

Adult↗

Intracranial hemorrhage complicating acute stroke: how common is hemorrhagic stroke on initial head CT scan and how often is initial clinical diagnosis of acute stroke eventually confirmed?

BACKGROUND AND PURPOSE: Assessment of possible hemorrhage in acute stroke before appropriate therapy remains important. The aim of this study was to determine the frequency with which patients present with clinical stroke and have intracranial hemorrhage on initial noncontrast head CT scan (NCCT). In addition, we sought to determine the frequency with which initial clinical diagnosis acute stroke is confirmed in this group. METHODS: Medical records of 691 consecutive patients with admitting diagnosis of acute stroke were evaluated retrospectively. Results of initial NCCT performed within 24 hours after presentation were assessed. All patients were examined before anticoagulation or thrombolysis. Correlation with treatment and leading differential etiology was made. RESULTS: Twenty-five patients (25/691 [3.6%]) had hemorrhage. Twenty-three patients (23/25 [92%]) had intraparenchymal hemorrhage only. One patient (1/25 [4%]) had a combination of intraparenchymal and subarachnoid hemorrhage. One patient (1/25 [4%]) had subdural hemorrhage only. Twenty-two NCCT scans (22/25 [88%]) were performed within 6 hours of presentation. Seventeen NCCT scans (17/25 [68%]) were performed within 3 hours of presentation. CONCLUSION: Despite frequent concerns for intracranial hemorrhage complicating acute stroke and treatment, a low percentage of patients had this complication. Moreover, our frequency is much lower than the wide ranges reported elsewhere. The most common type of intracranial hemorrhage in this cohort was intraparenchymal, but subarachnoid and subdural hemorrhages were also diagnosed and must also be considered. Twenty-eight percent of patients with initial suspicion of acute ischemic stroke are eventually given other diagnoses. These results may have implications for use of CT imaging.

Adult↗

Using the NIH Stroke Scale to assess stroke patients. The NINDS rt-PA Stroke Study Group.

The stroke patient is acutely ill within minutes of symptom onset. Typically, he or she is awake and thus requires a focal neurologic exam to evaluate vision, movement, sensation and language. With the advent of acute stroke treatments that need to be rapidly implemented, it is critical that the nurse be able to assess patients and relay the information accurately and efficiently to other members of the health care team. Performing and documenting the awake stroke exam in the most efficient and useful manner is key to the nursing care of the stroke patient. The National Institutes of Health Stroke Scale (NIHSS) is a systematic assessment tool designed to measure the neurologic deficits most often seen with acute stroke patients. Originally designed as a research tool, it is a nonlinear ordinal scale, with possible scores ranging form 0-42. Exam performance has been timed to take 5-8 minutes. Use of the NIHSS includes documentation of neurologic status and outcome, data collection for planning safe nursing care and standardization of information exchanges between nurse caregivers and other health care professionals.

Cerebrovascular Disorders↗

Hyperhomocysteinaemia in stroke: prevalence, cause, and relationships to type of stroke and stroke risk factors.

Moderate hyperhomocysteinaemia is a frequent finding in atherothrombotic cerebrovascular disease. This study confirms and extends this observation. Hyperhomocysteinaemia was present in 57 of 142 survivors with stroke (40%) and in four of 66 controls (6%). Plasma homocysteine concentrations were increased not only in carotid artery disease or lucunar stroke but also in haemorrhagic or embolic strokes. Homocysteine values were unrelated to the presence of hypertension, smoking, or hypercholesterolaemia, or to the concentrations of blood glucose, glycosylated haemoglobin, and plasma fibrinogen. Multiple regression analysis of the patient data showed that about 40% of the variation in plasma homocysteine concentrations could be predicted by the values for the homocysteine metabolism cofactors, blood folate and plasma pyridoxal 5-phosphate and by renal function as reflected in the values for serum creatinine. In patients, urine excretion of homocysteine per unit creatinine was significantly increased and strongly correlated both to the plasma homocysteine concentration and to the values for blood folate, plasma pyridoxal 5-phosphate, and serum vitamin B12. We conclude that moderate hyperhomocysteinaemia is frequently present in cases of stroke, is independent of other stroke risk factors or the type of stroke, and is partly related to renal function and the concentrations of homocysteine metabolism cofactors.

Adult↗

[Efficacy of agreements within the Enchede Stroke Service to refer patients with a stroke from the stroke unit in the hospital to a nursing home for short-term rehabilitation].

OBJECTIVE: To assess the efficacy of agreements within the Enschede Stroke Service to refer patients with a stroke from the stroke unit in the hospital to a nursing home for short-term rehabilitation. DESIGN: Prospective, partly retrospective. METHOD: All patients who were referred from the stroke unit at Medisch Spectrum Twente to the CVA Rehabilitation Unit (CRU) in the period 1 July 1999-31 July 2003 were included. Referral took place via an active multidisciplinary approach and specific referral agreements. The primary outcome was the number of patients that could be discharged home after rehabilitation. In addition, we assessed the influence on final discharge destination of age, the Barthel and Rankin scores at the time of admission to the CRU and the medical complications during the period of rehabilitation. RESULTS: 232 patients were included (133 women and 99 men, mean age 76.4 years). Within 3 months, 63% of the patients were discharged home. After 6 months, 82% had returned home. 8% of the patients died within 6 months and 9% had to stay in a nursing home permanently. Of the patient aged 80 years or older, 75% could return home within 6 months. Patients with poor Barthel and Rankin scores and medical complications had a smaller chance of being discharged home. CONCLUSION: Effective referral of patients from the stroke unit to a nursing home for short-term rehabilitation is possible. With adequate patient selection, the use of good referral agreements and multidisciplinary consultations, most patients could finally return home.

Aged↗

European Stroke Initiative (EUSI) recommendations for stroke management. The European Stroke Initiative Writing Committee.

The European Stroke Initiative (EUSI) is the common body of stroke-related activities within the European Federation of Neurological Societies (EFNS), the European Neurological Society (ENS) and the European Stroke Council (ESC). The Executive committee of the EUSI has authorized the writing committee of the EUSI to create recommendations for stroke management covering all areas of stroke treatment. The recommendations are listed according to levels of evidence pre-specified and modified according to several proposals in the literature. The recommendations have been approved by the executive committees of the EUSI, the ESC, the EFNS and the ENS. They are called recommendations rather than guidelines in order to underline the large amount of individual decision making due to the fact that for many important questions, no data of high evidence level is available. The EUSI plans to review and update the recommendations on a regular basis.

Anticoagulants↗

Thrombolytic therapy for ischemic stroke--a review. Part II--Intra-arterial thrombolysis, vertebrobasilar stroke, phase IV trials, and stroke imaging.

OBJECTIVE: Intra-arterial thrombolytic therapy for carotid and vertebrobasilar stroke may result in a more rapid clot lysis and higher recanalization rates than can be achieved with intravenous thrombolysis and thus may warrant the more invasive and time-consuming therapeutic approach. We present an overview of all hitherto completed trials of intra-arterial thrombolytic therapy for carotid and vertebrobasilar artery stroke including recommendations for therapy and a meta-analysis. Furthermore, new imaging techniques such as diffusion- and perfusion-weighted magnetic resonance imaging and their impact on patient selection are discussed. Finally, phase IV trials of thrombolysis in general and cost efficacy analyses are presented. DATA SOURCES: We performed an extensive literature search not only to identify the larger and well-known randomized trials but also to identify smaller pilot studies and case series. Trials included in this review, among others, are the PROACT I and PROACT II studies and the Cochrane Library report. CONCLUSION: Intra-arterial thrombolytic therapy of acute M1 and M2 occlusions with 9 mg/2 hrs pro-urokinase significantly improves outcome if administered within 6 hrs after stroke onset. Seven patients need to be treated to prevent one patient from death or dependence. Vertebrobasilar occlusion has a grim prognosis and intra-arterial thrombolytic therapy to date is the only life-saving therapy that has demonstrated benefit with regard to mortality and outcome, albeit not in a randomized trial. New magnetic resonance imaging techniques may facilitate and improve the selection of patients for thrombolytic therapy. Presently, thrombolytic therapy is still underutilized because of problems with clinical and time criteria, and lack of public and professional education to regard stroke as a treatable emergency. If applied more widely, thrombolytic therapy may result in profound cost savings in health care and reduction of long-term disability of stroke patients.

Fibrinolytic Agents↗

Effects of clopidogrel and aspirin in combination versus aspirin alone on platelet activation and major receptor expression in patients after recent ischemic stroke: for the Plavix Use for Treatment of Stroke (PLUTO-Stroke) trial.

BACKGROUND AND PURPOSE: Clopidogrel is widely used in patients after recent ischemic stroke; however, its ability to yield additional antiplatelet protection on top of aspirin has never been explored in a controlled study. To determine whether clopidogrel with aspirin (C+ASA) will produce more potent platelet inhibition than aspirin alone (ASA) in patients after ischemic stroke, we conducted the Plavix Use for Treatment of Stroke trial. METHODS: Seventy patients after ischemic stroke were randomly assigned to C+ASA or ASA groups. Platelet studies included aggregometry; cartridge-based analyzers; expression of PECAM-1, P-selectin, GP IIb/IIIa (antigen and activity), vitronectin receptor, and formation of platelet-leukocyte microparticles by flow cytometry. Platelet tests were performed at baseline and after 30 days after randomization. RESULTS: There were no deaths, hospitalizations, or serious adverse events. There were no differences in the baseline platelet characteristics between C+ASA and ASA groups, or significant changes in platelet parameters in the ASA group, except diminished collagen-induced aggregation (P=0.001). In contrast, therapy with C+ASA resulted in a significant inhibition of platelet activity assessed by ADP- (P=0.00001) and collagen-induced (P=0.02) aggregation; closure time prolongation (P=0.03), and reduction of platelet activation units with Ultegra (P=0.00001); expression of PECAM-1 (P=0.01), and GP IIb/IIIa activity with PAC-1 (P=0.02) when compared with ASA group. Therapy with C+ASA also resulted in the reduced formation of platelet-leukocyte microparticles (P=0.02). CONCLUSIONS: Treatment with C+ASA for 1 month provides significantly greater inhibition of platelet activity than ASA alone in patients after recent ischemic stroke in the frame of the small randomized trial.

Aged↗

Total quality improvement method for reduction of delays between emergency department admission and treatment of acute ischemic stroke. The National Institute of Neurological Disorders and Stroke rt-PA Stroke Study Group.

OBJECTIVE: To develop an approach for reducing time between emergency department (ED) admission and treatment in patients with acute ischemic stroke to meet the challenge of providing tissue plasminogen activator treatment within 180 minutes. DESIGN: An observational study. SETTING: Forty trial-affiliated hospitals, including 30 community hospitals. PARTICIPANTS: A total of 17,324 consecutive patients admitted to trial-affiliated hospital EDs within 24 hours of possible stroke, from January 1991 through October 1994. INTERVENTION: Appraisal of the process of triage, evaluation, diagnosis, and treatment by means of total quality improvement techniques in each hospital. Staff participating in the process identified sources of variation and modifications by flow charting the process. MAIN OUTCOME MEASURE: Time between ED admission and treatment with study medication. RESULTS: Total quality improvement methods identified hospital-specific process improvements. Many improvements were administrative, requiring no additional resources. More than 50% of screened patients arrived too late to be treated. Only 1268 patients were admitted between 0 and 125 minutes from stroke onset with no other trial exclusion criteria; 48% were treated. Of 243 patients admitted between 126 and 170 minutes from stroke onset with no exclusion criteria, 4% were treated. Mean time from ED admission to treatment was similar in teaching and community hospitals. CONCLUSIONS: Total quality improvement methods identified ED-specific sources of process variability and reduced time between ED admission and treatment. Therefore, these methods should be considered in developing and monitoring emergent stroke treatment protocols.

Acute Disease↗

The community hospital-based stroke programs in North Carolina, Oregon and New York--V. Stroke diagnosis: factors influencing the diagnostic evaluation of patients following acute stroke.

Among the 4129 patients of the Community Hospital-based Stroke Program, 30% had an unspecified stroke diagnosis. Since specific diagnosis and, perhaps, eventual treatment, derives in part from diagnostic testing, we examined the effect of clinical condition, geographic and demographic factors on the incidence of certain diagnostic tests after acute stroke. In this multivariable analysis, race, sex, history of hypertension and history of diabetes did not influence the chance of having any test, but older age strongly reduced the chances of receiving extensive evaluation. When CT scanning was available, the utilization of a CT as well as other diagnostic studies including cerebral angiography, radionuclide brain scan, EEG and EKG was increased. The odds of receiving a CT scan increased if the patient was married, and decreased with a history of previous stroke. A history of previous TIA increased the chance of having a cerebral angiogram while a history of cardiac disease decreased the chance. There were striking regional geographic differences in the use of CT, radionuclide brain scanning and cerebral angiography which may, in part, reflect differences between the availability of these technologies in urban and rural hospitals. These results indicate that evaluation of stroke patients remains heterogenous.

Aged↗

The Stroke P.O.R.T.: secondary and tertiary prevention of ischemic stroke. Stroke Prevention Patient Outcomes Research Team.

The Stroke Prevention Patient Outcomes Research Team (PORT) is a five-year, multidisciplinary project designed to identify, evaluate and disseminate strategies for the secondary and tertiary prevention of ischemic stroke. The project has several major subcomponents: a formal literature review and synthesis; an analysis of the costs of specific diagnostic and therapeutic strategies; the identification of variations in clinical preventive practice through a national survey of physicians; an analysis of quality of life and patient preferences though a national computer assisted telephone survey of patients; the synthesis and development of recommendations through the use of both a formal decision/cost-effectiveness model and an expert consensus panel using a modified Delphi approach; and the dissemination of the recommendations through an intervention-demonstration trial. The Stroke PORT provides a formal structure for the evaluation and synthesis of complex interrelated levels of evidence for clinical stroke prevention strategies, a cost-benefit analysis, and a survey of patient and physician attitudes. The dissemination portion of the Stroke PORT remains in a planning phase awaiting the results of earlier parts of the project.

Brain Ischemia↗

[Structured care for stroke patients: stroke units and transmural stroke services].

Following the successful introduction of Coronary Care Units for patients after a myocardial infarction, Stroke Units were designed where the specialized care for patients who had suffered a stroke might be concentrated. A meta-analysis in 1993 indicated that patients indeed benefited from treatment in such a unit. Stroke is the third cause of death in the Netherlands, with a prevalence in people aged 55 and more of 3.5% in men and of 1.9% in women. A Stroke Unit is part of a hospital; a Transmural Stroke Service in which neurologists and general practitioners participate, may deliver the appropriate care in the appropriate setting: patients may quickly be admitted to the hospital, an outpatient clinic can limit unnecessary hospitalization, and the general practitioner supervises chronic home treatment. The possibilities are there, now they have to be implemented.

Aged↗

[Diagnosis related groups in stroke treatment. An analysis from the stroke data bank of the German Stroke Foundation].

BACKGROUND: The upcoming introduction of diagnosis related groups (DRG) as an exclusive base for future calculation of hospital proceeds in Germany requires a thorough analysis of cost data for various diseases. OBJECTIVE: To compare the resulting combined cost weights of the Australian Refined DRG system (AR-DRG) with the proceeds based on actual per-day rates in stroke treatment. PATIENTS AND METHODS: Between 1998 and 1999, data from 6520 patients (median age 68 years, 43% women) with acute stroke or transient ischemic attack (TIA) were prospectively documented in 15 departments of Neurology with an acute stroke unit, 9 departments of general Neurology and 6 departments of Internal Medicine. Prior to grouping cases into DRGs, all available data were transferred into ICD-10-SGB-V 2.0 or the Australian procedure system (MBS-Extended). Hospital proceeds for the respective cases were calculated based on per-day rates of the documenting hospitals. RESULTS: The resulting cost weights demonstrate a good homogeneity compared to the length of stay. When introducing the AR-DRG with a uniform base rate in Germany, a relative decrease of hospital proceeds can be expected in Neurology Departments and for treatment of TIAs. CONCLUSION: Preservation of the existing structure of acute stroke care in Germany requires a supplement to a uniform base rate in Neurology departments.

Acute Disease↗