Successful Community Discharge Among Older Adults With Traumatic Brain Injury Admitted to Inpatient Rehabilitation Facilities.

Objective: To identify admission characteristics that predict a successful community discharge from an inpatient rehabilitation facility (IRF) among older adults with traumatic brain injury (TBI). Design: In a retrospective cohort study, we leveraged probabilistically linked Medicare Administrative, IRF-Patient Assessment Instrument, and National Trauma Data Bank data to build a parsimonious logistic model to identify characteristics associated with successful discharge. Multiple imputation methods were used to estimate effects across linked datasets to account for potential data linkage errors. Setting: Inpatient Rehabilitation Facilities in the U.S. Participants: The sample included a mean of 1060 community-dwelling adults aged 66 years and older across 30 linked datasets (N=1060). All were hospitalized after TBI between 2011 and 2015 and then admitted to an IRF. The mean age of the sample was 79.7 years, and 44.3% of the sample was women. Interventions: Not applicable. Main Outcome Measures: Successful discharge home. Results: Overall, 64.6% of the sample was successfully discharged home. A logistic model including 4 predictor variables: Functional Independence Measure motor (FIM-M) and cognitive (FIM-C) scores, pre-injury chronic conditions, and pre-injury living arrangement, that were significantly associated with successful discharge, resulted in acceptable discrimination (area under the curve: 0.76, 95% confidence interval [CI]: 0.72-0.81). Higher scores on the FIM-M (odds ratio [OR]:1.07, 95% CI: 1.05-1.09) and FIM-C (OR: 1.05, 95% CI: 1.02-1.08) were associated with greater odds of successful discharge, whereas living alone vs with others (OR: 0.46, 95% CI: 0.30-0.71) and a greater number of chronic conditions (OR: 0.94, 95% CI: 0.90-0.99) were associated with lower odds of successful discharge. Conclusions: The results provide a parsimonious model for predicting successful discharge among older adults admitted to an IRF after a TBI-related hospitalization and provide clinically useful information to inform discharge planning.

Patient-Provider Communication on Concerns Related to Sexuality Following Upper Extremity Surgery.

BACKGROUND: Sexuality and sexual health are important components of overall quality of life that can be affected by injuries, operations, and disease processes. Much of the research into health-related sexuality has been devoted to patients with spinal cord injuries and urogenital disease processes. There is very little research on the relationship of upper extremity injuries and their impact on a patient's sex life. The purposes of this study are to assess the proportion of patients who experience sexual limitation following upper extremity surgery and to assess the frequency of discussions regarding their sexual function with their surgeons. METHODS: This was a prospective study of a cohort of patients who had hand, shoulder, or arm surgery more than 6 weeks prior to study recruitment. Patients were approached during a follow-up visit with their hand surgeon and were provided with an deidentified survey that focused on upper extremity function, impact of upper extremity injury or surgery on sexual satisfaction, and patient-physician communication surrounding the topic. RESULTS: Of the patients surveyed, 11 (39%) reported that their upper extremity injury frequently negatively affected their sexual satisfaction. In addition, 9 patients (35%) reported that they wanted their surgeon to initiate discussion about recovery from surgery and its impact on sexual activity. CONCLUSIONS: Upper extremity injuries may negatively affect sexual well-being. Many people want their physician to discuss this with them. Additional research is necessary to qualitatively assess what interventions may be useful for this population as well as how to integrate these discussions into hand surgery clinic visits.

Functional motor improvement during inpatient rehabilitation among older adults with traumatic brain injury.

BACKGROUND: Older adults comprise an increasingly large proportion of patients with traumatic brain injury (TBI) receiving care in inpatient rehabilitation facilities (IRF). However, high rates of comorbidities and evidence of declining preinjury health among older adults who sustain TBI raise questions about their ability to benefit from IRF care. OBJECTIVES: To describe the proportion of older adults with TBI who exhibited minimal detectable change (MDC) and a minimally clinically important difference (MCID) in motor function from IRF admission to discharge; and to identify characteristics associated with clinically meaningful improvement in motor function and better discharge functional status. DESIGN: This retrospective cohort study used Medicare administrative data probabilistically linked to the National Trauma Data Bank to estimate the proportion of patients whose motor function improved during inpatient rehabilitation and identify factors associated with meaningful improvement in motor function and motor function at discharge. SETTING: Inpatient rehabilitation facilities in the United States. PATIENTS: Fee-for-service Medicare beneficiaries with TBI. MAIN OUTCOME MEASURES: Minimal Detectable Change (MDC) and Minimally Clinically Important Difference (MCID) in the Functional Independence Measure motor (FIM-M) score from admission to discharge, and FIM-M score at IRF discharge. RESULTS: From IRF admission to discharge 84% of patients achieved the MDC threshold, and 68% of patients achieved the MCID threshold for FIM-M scores. Factors associated with a higher probability of achieving the MCID for FIM-M scores included better admission motor and cognitive function, lower comorbidity burden, and a length of stay longer than 10 days but only among individuals with lower admission motor function. Older age was associated with a lower FIM-M discharge score, but not the probability of achieving the MCID in FIM-M score. CONCLUSION: Older adults with TBI have the potential to improve their motor function with IRF care. Baseline functional status and comorbidity burden, rather than acute injury severity, should be used to guide care planning.

Microplate-based surface area assay for rapid phenotypic antibiotic susceptibility testing.

Rapid delivery of proper antibiotic therapies to infectious disease patients is essential for improving patient outcomes, decreasing hospital lengths-of-stay, and combating the antibiotic resistance epidemic. Antibiotic stewardship programs are designed to address these issues by coordinating hospital efforts to rapidly deliver the most effective antibiotics for each patient, which requires bacterial identification and antimicrobial susceptibility testing (AST). Despite the clinical need for fast susceptibility testing over a wide range of antibiotics, conventional phenotypic AST requires overnight incubations, and new rapid phenotypic AST platforms restrict the number of antibiotics tested for each patient. Here, we introduce a novel approach to AST based on signal amplification of bacterial surfaces that enables phenotypic AST within 5 hours for non-fastidious bacteria. By binding bacterial surfaces, this novel method allows more accurate measurements of bacterial replication in instances where organisms filament or swell in response to antibiotic exposure. Further, as an endpoint assay performed on standard microplates, this method should enable parallel testing of more antibiotics than is currently possible with available automated systems. This technology has the potential to revolutionize clinical practice by providing rapid and accurate phenotypic AST data for virtually all available antibiotics in a single test.

Ultrasmall superparamagnetic iron oxide nanoparticle uptake as noninvasive marker of aortic wall inflammation on MRI: proof of concept study.

OBJECTIVE:: Radiation therapy for cancer can lead to atherosclerosis by inducing inflammatory changes in the vascular wall. It is difficult to quantitatively measure inflammation on CT and MRI studies. The purpose of this study was to assess the use of ferumoxytol, an ultrasmall superparamagnetic iron oxide nanoparticle, as a noninvasive marker of vessel wall inflammation secondary to radiation therapy in pancreatic cancer patients in comparison with healthy volunteers. METHODS:: MRI of upper abdomen (T1, T2, multi echo T2* weighted imaging) was performed on 3 T magnet before and 48 h after intravenous administration of ferumoxytol in pancreatic cancer patients who underwent radiation therapy (n = 8) and in healthy volunteers (n = 8). R2* value was obtained by drawing regions of interest outlining the aortic wall directly on the T2* medic image and subsequently transposed to the R2* image using Amira software (v. 5.3.2, FEI, Bordeaux, France). The change in R2* values was analyzed by student's t-test. RESULTS:: The average change in R2* value of the pancreatic cancer patients was determined to be 216.1 ms-1. The average change R2* value of the control patients was determined to be 54.6 ms-1. Thus, pancreatic cancer patients following radiation therapy had a greater uptake of ferumoxytol (p = 0.0082) in their aortic wall as compared to healthy controls. CONCLUSION:: This proof of concept study suggests that greater uptake of ferumoxytol in the aortic wall in cancer patients without visible atherosclerosis may be the expression of increased inflammation. ADVANCES IN KNOWLEDGE:: Ultrasmall superparamagnetic iron oxide enhanced MRI can offer an imaging biomarker for quantitative estimation of aortic inflammation preceding atherosclerosis.