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Observation Unit (observation + unit)
Selected AbstractsOutcomes Associated With Nesiritide Administration for Acute Decompensated Heart Failure in the Emergency Department Observation Unit: A Single Center ExperienceCONGESTIVE HEART FAILURE, Issue 3 2009Joseph F. Styron BA The authors' purpose was to determine 30- and 180-day readmission and mortality rates for acutely decompensated heart failure patients receiving nesiritide in the emergency department observation unit. The authors conducted a retrospective evaluation of all patients admitted to the emergency department observation unit, stratified by nesiritide administration, from January 2002 to January 2004. Eligible patients had a primary diagnosis of acutely decompensated heart failure. Observation unit treatment was by previously published protocols, except for nesiritide administration, which was per attending physician choice. Of 595 patients, 196 (33%) received nesiritide. The crude and adjusted odds ratios comparing readmission rates and mortality rates of the nesiritide group with the control group failed to demonstrate significant differences at either the 30- or the 180-day endpoints. The use of nesiritide for acute decompensated heart failure in the emergency department observation unit is not associated with mortality or readmission differences compared with standard therapy alone. [source] Health Beliefs toward Cardiovascular Risk Reduction in Patients Admitted to Chest Pain Observation UnitsACADEMIC EMERGENCY MEDICINE, Issue 5 2009David A. Katz MD Abstract Objectives:, Even after acute coronary syndrome (ACS) is ruled out, observational studies have suggested that many patients with nonspecific chest pain have a high burden of cardiovascular risk factors (CRFs) and are at increased long-term risk of ischemic heart disease (IHD)-related mortality. The aim of this study was to evaluate the premise that evaluation in an observation unit for symptoms of possible ACS is a "teachable moment" with regard to modification of CRFs. Methods:, The authors conducted a baseline face-to-face interview and a 3-month telephone interview of 83 adult patients with at least one modifiable CRF who presented with symptoms of possible ACS to an academic medical center. Existing questionnaires were adapted to measure Health Belief Model (HBM) constructs for IHD. Stage of change and self-reported CRF-related behaviors (diet, exercise, and smoking) were assessed using previously validated measures. The paired t-test or signed rank test was used to compare baseline and 3-month measures of health behavior within the analysis sample. Results:, Of the 83 study patients, 45 and 40% reported having received clinician advice regarding diet and physical activity during the observation unit encounter, respectively; 69% of current smokers received advice to quit smoking. Patients reported lower susceptibility to IHD (13.3 vs. 14.0, p = 0.06) and greater perceived benefit of healthy lifestyles (27.5 vs. 26.4, p = 0.0003) at 3-month follow-up compared to baseline. Patients also reported greater readiness to change and improved self-reported behaviors at follow-up (vs. baseline): decreased intake of saturated fat (10.1% vs. 10.5% of total calories, p = 0.005), increased fruit and vegetable intake (4.0 servings/day vs. 3.6 servings/day, p = 0.01), and fewer cigarettes (13 vs. 18, p = 0.002). Conclusions:, Observed changes in IHD health beliefs and CRF-related behaviors during follow-up support the idea that observation unit admission is a teachable moment. Patients with modifiable risk factors may benefit from systematic interventions to deliver CRF-related counseling during observation unit evaluation. [source] Outcomes Associated With Nesiritide Administration for Acute Decompensated Heart Failure in the Emergency Department Observation Unit: A Single Center ExperienceCONGESTIVE HEART FAILURE, Issue 3 2009Joseph F. Styron BA The authors' purpose was to determine 30- and 180-day readmission and mortality rates for acutely decompensated heart failure patients receiving nesiritide in the emergency department observation unit. The authors conducted a retrospective evaluation of all patients admitted to the emergency department observation unit, stratified by nesiritide administration, from January 2002 to January 2004. Eligible patients had a primary diagnosis of acutely decompensated heart failure. Observation unit treatment was by previously published protocols, except for nesiritide administration, which was per attending physician choice. Of 595 patients, 196 (33%) received nesiritide. The crude and adjusted odds ratios comparing readmission rates and mortality rates of the nesiritide group with the control group failed to demonstrate significant differences at either the 30- or the 180-day endpoints. The use of nesiritide for acute decompensated heart failure in the emergency department observation unit is not associated with mortality or readmission differences compared with standard therapy alone. [source] Bridging the gap between evidence and practice in acute decompensated heart failure managementJOURNAL OF HOSPITAL MEDICINE, Issue S6 2008FACP, Franklin A. Michota Jr MD Abstract Registry data indicate a gap between evidence-based guidelines and current management of patients with acute decompensated heart failure (ADHF). Bridging this gap is crucial given the frequency and cost of hospitalization for this disorder. Patients with ADHF require rapid assessment to determine appropriate treatment location and initial therapy. Patients with impending respiratory failure or cardiogenic shock should be managed in an intensive care setting, patients with congestion that is expected to require prolonged intravenous therapy should be admitted to the hospital, and patients with congestion that is likely to respond within 12,24 hours can be managed in an observation unit. Clinical status should guide selection of initial therapy. Initially, therapeutic response should be assessed every couple of hours. Once effective acute therapy has been established, it is important to implement strategies to improve long-term outcomes. These strategies include ensuring that care complies with established core performance measures, providing patient education in a manner suited to ensure comprehension and retention, and arranging for appropriate outpatient follow-up, ideally in a comprehensive heart failure disease management program. The purpose of this review is (1) to examine evidence-based guidelines for the treatment of ADHF, (2) to present a practical algorithm for patient assessment and treatment derived from these guidelines and personal experience, and (3) to discuss systems to enhance the ultimate transition of patient care from the inpatient to outpatient setting. Journal of Hospital Medicine 2008;3(Suppl 6):S7,S15. ©2008 Society of Hospital Medicine. [source] Health Beliefs toward Cardiovascular Risk Reduction in Patients Admitted to Chest Pain Observation UnitsACADEMIC EMERGENCY MEDICINE, Issue 5 2009David A. Katz MD Abstract Objectives:, Even after acute coronary syndrome (ACS) is ruled out, observational studies have suggested that many patients with nonspecific chest pain have a high burden of cardiovascular risk factors (CRFs) and are at increased long-term risk of ischemic heart disease (IHD)-related mortality. The aim of this study was to evaluate the premise that evaluation in an observation unit for symptoms of possible ACS is a "teachable moment" with regard to modification of CRFs. Methods:, The authors conducted a baseline face-to-face interview and a 3-month telephone interview of 83 adult patients with at least one modifiable CRF who presented with symptoms of possible ACS to an academic medical center. Existing questionnaires were adapted to measure Health Belief Model (HBM) constructs for IHD. Stage of change and self-reported CRF-related behaviors (diet, exercise, and smoking) were assessed using previously validated measures. The paired t-test or signed rank test was used to compare baseline and 3-month measures of health behavior within the analysis sample. Results:, Of the 83 study patients, 45 and 40% reported having received clinician advice regarding diet and physical activity during the observation unit encounter, respectively; 69% of current smokers received advice to quit smoking. Patients reported lower susceptibility to IHD (13.3 vs. 14.0, p = 0.06) and greater perceived benefit of healthy lifestyles (27.5 vs. 26.4, p = 0.0003) at 3-month follow-up compared to baseline. Patients also reported greater readiness to change and improved self-reported behaviors at follow-up (vs. baseline): decreased intake of saturated fat (10.1% vs. 10.5% of total calories, p = 0.005), increased fruit and vegetable intake (4.0 servings/day vs. 3.6 servings/day, p = 0.01), and fewer cigarettes (13 vs. 18, p = 0.002). Conclusions:, Observed changes in IHD health beliefs and CRF-related behaviors during follow-up support the idea that observation unit admission is a teachable moment. Patients with modifiable risk factors may benefit from systematic interventions to deliver CRF-related counseling during observation unit evaluation. [source] Development of a fully automated macromolecular crystallization/observation robotic system, HTS-80ACTA CRYSTALLOGRAPHICA SECTION D, Issue 6 2005Hideyuki Miyatake A robotic system has been developed to be used for macromolecular crystallization and observation in typical university laboratories with a research focus on protein crystallography. The system consists of three major parts: a dispenser unit, a storage unit and an observation unit. This system is designed to automatically perform all of the processes involved in crystallization and observation without requiring any manual operations. The dispenser and observation units can carry out both sitting-drop vapor-diffusion procedures and microbatch procedures. With this system, the procedures are controlled by a personal computer running GUI-based software. After the dispensing of protein solution into the crystallization plates, they are automatically transferred to the storage units, followed by automatic observation according to a required schedule with arbitrary intervals. At each stage of crystallization, droplets in the crystallization plates are examined by original image-processing software in order to evaluate the appearance of the crystals. [source] Sixty-four,slice Computed Tomography of the Coronary Arteries: Cost,Effectiveness Analysis of Patients Presenting to the Emergency Department with Low-risk Chest PainACADEMIC EMERGENCY MEDICINE, Issue 7 2008Rahul K. Khare MD Abstract Objectives:, The aim was to use a computer model to estimate the cost,effectiveness of 64-slice multidetector computed tomography (MDCT) of the coronary arteries in the emergency department (ED) compared to an observation unit (OU) stay plus stress electrocardiogram (ECG) or stress echocardiography for the evaluation of low-risk chest pain patients presenting to the ED. Methods:, A decision analytic model was developed to compare health outcomes and costs that result from three different risk stratification strategies for low-risk chest pain patients in the ED: stress ECG testing after OU care, stress echocardiography after OU care, and MDCT with no OU care. Three patient populations were modeled with the prevalence of symptomatic coronary artery disease (CAD) being very low risk, 2%; low risk, 6% (base case); and moderate risk, 10%. Outcomes were measured as quality-adjusted life years (QALYs). Incremental cost,effectiveness ratios (ICERs), the ratio of change in costs of one test over another to the change in QALY, were calculated for comparisons between each strategy. Sensitivity analyses were conducted to test the robustness of the results to assumptions regarding the characteristics of the risk stratification strategies, costs, utility weights, and likelihood of events. Results:, In the base case, the mean (±standard deviation [SD]) costs and QALYs for each risk stratification strategy were MDCT arm $2,684 (±$1,773 to $4,418) and 24.69 (±24.54 to 24.76) QALYs, stress echocardiography arm $3,265 (±$2,383 to $4,836) and 24.63 (±24.28 to 24.74) QALYs, and stress ECG arm $3,461 (±$2,533 to $4,996) and 24.59 (±24.21 to 24.75) QALYs. The MDCT dominated (less costly and more effective) both OU plus stress echocardiography and OU plus stress ECG. This resulted in an ICER where the MDCT arm dominated the stress echocardiography arm (95% confidence interval [CI] = dominant to $29,738) and where MDCT dominated the ECG arm (95% CI = dominant to $7,332). The MDCT risk stratification arm also dominated stress echocardiography and stress ECG in the 2 and 10% prevalence scenarios, which demonstrated the same ICER trends as the 6% prevalence CAD base case. The thresholds where the MDCT arm remained a cost-saving strategy compared to the other risk stratification strategies were cost of MDCT, <$2,097; cost of OU care, >$1,092; prevalence of CAD, <70%; MDCT specificity, >65%; and a MDCT indeterminate rate, <30%. Conclusions:, In this computer-based model analysis, the MDCT risk stratification strategy is less costly and more effective than both OU-based stress echocardiography and stress ECG risk stratification strategies in chest pain patients presenting to the ED with low to moderate prevalence of CAD. [source] Estimating Observation Unit Profitability with Options ModelingACADEMIC EMERGENCY MEDICINE, Issue 5 2008Christopher W. Baugh MD Abstract Background:, Over the past two decades, the use of observation units to treat such common conditions as chest pain, asthma, and others has greatly increased. These units allow patients to be directed out of emergency department (ED) acute care beds while potentially avoiding inpatient admission. Many studies have demonstrated the clinical effectiveness of care delivered in such a setting compared to the ED or inpatient ward. However, there are limited data published about observation unit finance. Methods:, Using the economic principles of stock options, opportunity costs, and net present value (NPV), a model that captures the value generated by admitting a patient to an observation unit was derived. In addition, an appendix is included showing how this model can be used to calculate the dollar value of an observation unit admission. Results:, A model is presented that captures more complexity of observation finance than the simple difference between payments and costs. The calculated estimate in the Appendix suggests that the average value of a single observation unit admission was about $2,908, which is about 40% higher than expected. Conclusion:, Subtraction of costs from payments may significantly underestimate the financial value of an observation unit admission. However, the positive value generated by an observation unit bed must be considered in the context of other projects available to hospital administrators. [source] Three-way component analysis of interval-valued dataJOURNAL OF CHEMOMETRICS, Issue 5 2004Paolo Giordani Abstract Vertices Principal Component Analysis (V-PCA) and Centers Principal Component Analysis (C-PCA) are variants of Principal Component Analysis (PCA) to deal with two-way interval-valued data. In this case the observation units are represented as hyperrectangles instead of points. Tucker3 and CANDECOMP/PARAFAC are component analysis techniques to analyze the underlying structure of three-way data sets. In the present paper, after recalling the above mentioned methods, we extend the C-PCA and V-PCA methods to deal with three-way interval-valued data by means of Tucker3 and CANDECOMP/PARAFAC and we describe how to represent the observation units in the obtained low-dimensional space. Furthermore, an application of the extended methods,called Three-way Vertices Principal Component Analysis (3V-PCA) and Three-way Centers Principal Component Analysis (3C-PCA),to three-way interval-valued air pollution data is described. Copyright © 2004 John Wiley & Sons, Ltd. [source] Development of a fully automated macromolecular crystallization/observation robotic system, HTS-80ACTA CRYSTALLOGRAPHICA SECTION D, Issue 6 2005Hideyuki Miyatake A robotic system has been developed to be used for macromolecular crystallization and observation in typical university laboratories with a research focus on protein crystallography. The system consists of three major parts: a dispenser unit, a storage unit and an observation unit. This system is designed to automatically perform all of the processes involved in crystallization and observation without requiring any manual operations. The dispenser and observation units can carry out both sitting-drop vapor-diffusion procedures and microbatch procedures. With this system, the procedures are controlled by a personal computer running GUI-based software. After the dispensing of protein solution into the crystallization plates, they are automatically transferred to the storage units, followed by automatic observation according to a required schedule with arbitrary intervals. At each stage of crystallization, droplets in the crystallization plates are examined by original image-processing software in order to evaluate the appearance of the crystals. [source] Estimating Observation Unit Profitability with Options ModelingACADEMIC EMERGENCY MEDICINE, Issue 5 2008Christopher W. Baugh MD Abstract Background:, Over the past two decades, the use of observation units to treat such common conditions as chest pain, asthma, and others has greatly increased. These units allow patients to be directed out of emergency department (ED) acute care beds while potentially avoiding inpatient admission. Many studies have demonstrated the clinical effectiveness of care delivered in such a setting compared to the ED or inpatient ward. However, there are limited data published about observation unit finance. Methods:, Using the economic principles of stock options, opportunity costs, and net present value (NPV), a model that captures the value generated by admitting a patient to an observation unit was derived. In addition, an appendix is included showing how this model can be used to calculate the dollar value of an observation unit admission. Results:, A model is presented that captures more complexity of observation finance than the simple difference between payments and costs. The calculated estimate in the Appendix suggests that the average value of a single observation unit admission was about $2,908, which is about 40% higher than expected. Conclusion:, Subtraction of costs from payments may significantly underestimate the financial value of an observation unit admission. However, the positive value generated by an observation unit bed must be considered in the context of other projects available to hospital administrators. [source] Actual Financial Comparison of Four Strategies to Evaluate Patients with Potential Acute Coronary SyndromesACADEMIC EMERGENCY MEDICINE, Issue 7 2008Anna Marie Chang MD Abstract Objectives:, Small studies have shown that a negative computed tomography coronary angiogram (CTA) in low-risk chest pain patients predicts a low rate of 30-day adverse events. The authors hypothesized that an immediate CTA strategy would be as effective but less costly than alternative strategies for evaluation of patients with potential acute coronary syndrome (ACS). Methods:, The authors retrospectively compared four strategies for evaluation of patients after initial physician determination that the patient required admission and testing to rule out ACS. Patients were frequency-matched by age, race, gender, thrombolysis in myocardial infarction (TIMI) score, and initial electrocardiogram (ECG). The four groups were immediate CTA in the emergency department (ED) without serial markers (n = 98); clinical decision unit/observation unit (CDU) with biomarkers and CTA (n = 102); CDU evaluation with serial cardiac biomarkers and stress testing (n = 154); and usual care, defined as admission with serial biomarkers and hospitalist-directed evaluation (n = 289). The main outcomes were actual cost of care (facility direct and indirect fixed, facility variable direct labor and supply costs), length of stay (LOS), diagnosis of coronary artery disease (CAD), and safety (30-day death or myocardial infarction [MI]). Results:, Patients in each group were of similar age (mean ± standard deviation [SD] 46 ± 9 years), race (62% African American), and gender (57% female) and had similar TIMI scores (100% between 0,2). Comparing immediate CTA versus CDU CTA versus CDU stress versus usual care, median costs were less ($1,240 vs. 2,318 vs. 4,024 vs. 2,913; p < 0.01), and LOS was shorter (8.1 hr vs. 20.9 hr vs. 26.2 hr vs. 30.2 hr; p < 0.01). Diagnosis of CAD was similar (5.1% vs. 5.9% vs. 5.8% vs. 6.6%; p = 0.95), but fewer patients had 30-day death/MI (0% vs. 0% vs. 0.7% vs. 3.1%; p = 0.04) or 30-day readmission (0% vs. 3.2% vs. 2.3% vs. 12.2%; p < 0.01). Conclusions:, Compared to the other strategies, immediate CTA was as safe, identified as many patients with CAD, had the lowest cost, had the shortest LOS, and allowed discharge for the majority of patients. Larger prospective studies should confirm safety before immediate CTA replaces other strategies to rule out possible ACS. [source] | |||||||||||||