A conserved interdomain microbial network underpins cadaver decomposition despite environmental variables.

Microbial breakdown of organic matter is one of the most important processes on Earth, yet the controls of decomposition are poorly understood. Here we track 36 terrestrial human cadavers in three locations and show that a phylogenetically distinct, interdomain microbial network assembles during decomposition despite selection effects of location, climate and season. We generated a metagenome-assembled genome library from cadaver-associated soils and integrated it with metabolomics data to identify links between taxonomy and function. This universal network of microbial decomposers is characterized by cross-feeding to metabolize labile decomposition products. The key bacterial and fungal decomposers are rare across non-decomposition environments and appear unique to the breakdown of terrestrial decaying flesh, including humans, swine, mice and cattle, with insects as likely important vectors for dispersal. The observed lockstep of microbial interactions further underlies a robust microbial forensic tool with the potential to aid predictions of the time since death.

Application of a Human Factors and Systems Engineering Approach to Explore Care Transitions of Sepsis Survivors From Hospital to Home Health Care.

STUDY AIM: This study aims to describe the transition-in-care work process for sepsis survivors going from hospitals to home health care (HHC) and identify facilitators and barriers to enable practice change and safe care transitions using a human factors and systems engineering approach. BACKGROUND: Despite high readmission risk for sepsis survivors, the transition-in-care work process from hospitals to HHC has not been described. METHODS: We analyzed semi-structured needs assessment interviews with 24 stakeholders involved in transitioning sepsis survivors from two hospitals and one affiliated HHC agency participating in the parent implementation science study, I-TRANSFER. The qualitative data analysis was guided by the Systems Engineering Initiative for Patient Safety (SEIPS) framework to describe the work process and identify work system elements. RESULTS: We identified 31 tasks characterized as decision making, patient education, communication, information, documentation, and scheduling tasks. Technological and organizational facilitators lacked in HHC compared to the hospitals. Person and organization elements in HHC had the most barriers but few facilitators. Additionally, we identified specific task barriers that could hinder sepsis information transfer from hospitals to HHC. CONCLUSION: This study explored the complex transition-in-care work processes for sepsis survivors going from hospitals to HHC. We identified barriers, facilitators, and critical areas for improvement to enable implementation and ensure safe care transitions. A key finding was the sepsis information transfer deficit, highlighting a critical issue for future study. APPLICATION: We recommend using the SEIPS framework to explore complex healthcare work processes before the implementation of evidence-based interventions.

The Symptom Experience of Older Adults with Mobility Difficulties: Qualitative Interviews.

Eighteen million older adults have mobility limitations, defined as difficulty walking a quarter of a mile or climbing stairs unassisted. Little is known about how symptom burden impacts mobility difficulty in older adults. Understanding the burden of symptoms responsible for mobility difficulties may be an area for intervention to improve mobility and to prevent adverse outcomes. We conducted 31 semi-structured qualitative interviews (one interview per participant) regarding the symptom burden experience associated with a current mobility difficulty. Thematic analysis revealed symptoms were limiting, were barriers to participation in daily activities, and produced a psychological and emotional burden that negatively impacted quality of life. Older adults employed various strategies to overcome the symptom burden. Participants also believed symptoms were a non-modifiable part of the aging process and at times felt disregarded by healthcare professionals. Future interventions should focus on reducing the symptom burden experience for older adults to improve mobility and prevent adverse outcomes.

Exposing Undergraduate Nursing Students to Older Adults: A Qualitative Analysis.

ABSTRACT: Care of the older adult can be complex and influenced by ageism. The purpose of this pilot study was to expose nursing students to older adults earlier in the undergraduate curriculum. This study examined the experiences of student participation in caring for older adults. Qualitative analysis of student logs was conducted. Themes that emerged included age-related changes, environmental considerations, psychosocial needs and changes, consideration of gerontology as a career choice, and existing bias. Early experiences are vital in the curriculum and provide enhanced engagement in gerontology.

Mismatch identified in symptom burden profiles in lung transplantation.

BACKGROUND: There is considerable heterogeneity in symptom burden among lung transplant candidates that may not be explained by objective measures of illness severity. OBJECTIVES: This study aimed to characterize symptom burden, identify distinct profiles based on symptom burden and illness severity, and determine whether observed profiles are defined by differences in social determinates of health (SDOH). METHODS: This was a prospective study of adult lung transplant candidates. Symptoms were assessed within 3 months of transplant with the Memorial Symptom Assessment Scale (MSAS). MSAS subscale (physical and psychological) scores range 0-4 (higher=more symptom burden). The lung allocation score (LAS) (range 0-100) was our proxy measure of illness severity. The MSAS subscales and LAS were used as continuous indicators in a latent profile analysis to identify distinct symptom-illness severity profiles. Comparative statistics were used to identify SDOH differences among observed profiles. RESULTS: Among 93 candidates, 3 distinct symptom-illness severity profiles were identified: 71% had a mild profile in which mild symptoms (MSAS physical 0.49; MSAS psychological 0.57) paired with mild illness severity (LAS 38.59). Of the 29% mismatched participants, 9% had moderate symptoms (MSAS physical 0.88; MSAS psychological 1.47) but severe illness severity (LAS 88.02) and 20% had severe symptoms (MSAS physical 1.30; MSAS psychological 1.94) but mild illness severity (LAS 42.13). The two mismatch profiles were younger, more racially diverse, and had higher psychosocial risk scores. CONCLUSION: Symptom burden is heterogenous, does not always reflect objective measures of illness severity, and may be linked to SDOH.

Self-reported symptom causes of mobility difficulty contributing to fear of falling in older adults.

BACKGROUND: Self-reported symptom causes of mobility difficulty that contribute to  fear of falling (FOF) in older adults has not been fully explored as an area for intervention. AIMS: Identify the prevalence of self-reported symptoms causing mobility difficulties and to examine the difference in FOF by symptom category. METHODS: Conduct a secondary data analysis of a population-based cohort of community-dwelling older adults, ≥ 70 years, enrolled in the MOBILIZE Boston study. The analysis included 242 older adults reported difficulty walking » mile (0.4 km) and/or climbing one flight of stairs. Participants identified the main symptom cause of the mobility difficulty from a list of 32 symptoms, grouped into five categories. FOF was measured using the Tinetti Falls Efficacy Scale. RESULTS: Pain was the primary symptom causing mobility difficulty (38%), followed by endurance (21%), weakness (13%), balance (9%), and other (3%). Although a greater proportion of participants who identified balance as the primary symptom category had significantly higher FOF compared to others, there was a greater number overall who reported pain as their main symptom who also had FOF. Therefore, pain contributed to a higher relative burden of FOF in the population than did balance symptoms. DISCUSSION: Various symptoms affect mobility and are associated with FOF, a known fall risk factor. Many older adults identify pain as the main cause of their mobility difficulty and report FOF. CONCLUSIONS: Improving pain symptoms for older adults may improve mobility and reduce fear of falling, potentially averting further decline in mobility and independence.

Improving transitions and outcomes of sepsis survivors (I-TRANSFER): a type 1 hybrid protocol.

BACKGROUND: This protocol is based on home health care (HHC) best practice evidence showing the value of coupling timely post-acute care visits by registered nurses and early outpatient provider follow-up for sepsis survivors. We found that 30-day rehospitalization rates were 7 percentage points lower (a 41% relative reduction) when sepsis survivors received a HHC nursing visit within 2 days of hospital discharge, at least 1 more nursing visit the first week, and an outpatient provider follow-up visit within 7 days compared to those without timely follow-up. However, nationwide, only 28% of sepsis survivors who transitioned to HHC received this timely visit protocol. The opportunity exists for many more sepsis survivors to benefit from timely home care and outpatient services. This protocol aims to achieve this goal.  METHODS: Guided by the Consolidated Framework for Implementation Research, this Type 1 hybrid pragmatic study will test the effectiveness of the Improving Transitions and Outcomes of Sepsis Survivors (I-TRANSFER) intervention compared to usual care on 30-day rehospitalization and emergency department use among sepsis survivors receiving HHC. The study design includes a baseline period with no intervention, a six-month start-up period followed by a one-year intervention period in partnership with five dyads of acute and HHC sites. In addition to the usual care/control periods from the dyad sites, additional survivors from national data will serve as control observations for comparison, weighted to produce covariate balance. The hypotheses will be tested using generalized mixed models with covariates guided by the Andersen Behavioral Model of Health Services. We will produce insights and generalizable knowledge regarding the context, processes, strategies, and determinants of I-TRANSFER implementation. DISCUSSION: As the largest HHC study of its kind and the first to transform this novel evidence through implementation science, this study has the potential to produce new knowledge about the impact of timely attention in HHC to alleviate symptoms and support sepsis survivor's recovery at home. If effective, the impact of this intervention could be widespread, improving the quality of life and health outcomes for a growing, vulnerable population of sepsis survivors. A national advisory group will assist with widespread results dissemination.

Identification of fungi found on desiccated human remains in an arid outdoor environment.

Three fungi not previously reported on desiccated human remains were identified on cadavers at the Forensic Investigation Research Station (FIRS) in Whitewater, Colorado. The location of the FIRS provides the unique opportunity to observe the stages of decomposition in a high desert environment. The two cadavers used in the study were in the late stages of decomposition (PMI of approximately 1520 and 1820 days) to the point of desiccation and had developed an extensive black crust on the skin that remained. Skin samples of the two cadavers were taken and plated onto potato dextrose agar to determine whether fungi were present on the desiccated tissues. Three different fungi consistently dominated cultures grown from numerous samples taken from each cadaver. Based on morphological observations, nuclear rDNA sequence data, and phylogenetic analyses, two fungi were identified to species (Aureobasidium melanogenum and Didymella glomerata) and one fungus was identified to the genus level (Alternaria). These results will contribute to the understanding of the role that fungi might play in late-stage decomposition and the extended postmortem period.

Parkinson's Disease Medication Administration During a Care Transition: The Impact of Interprofessional Team Simulation on Student Competency, Comfort, and Knowledge.

AIM: This study investigated the impact of an interprofessional mock code on students' comfort and competency related to Parkinson's disease (PD) medication administration during care transitions. BACKGROUD: Patients with PD are at increased risk for medication errors during hospitalization. Individualization of PD medication creates vulnerability during care transitions. METHOD: Four interprofessional groups took part in this study: baccalaureate degree senior nursing students (n = 113), master's level nurse anesthesia students (n = 35), doctor of osteopathic medicine fourth-year students (n = 32), and doctor of clinical psychology fourth-year students (n = 22). Groups participated in an unfolding case study simulation involving a mock code with a focus on the omission of time-sensitive PD medication. Pre- and postsimulation test results were compared. RESULTS: Findings indicated an increased understanding among three of the four groups relating to medication timing during care transitions. CONCLUSION: All groups improved with respect to perceived comfort and competency.

Rural and urban disparities in quality of home health care: A longitudinal cohort study (2014-2018).

PURPOSE: Home health care is one of the fastest growing health care sectors in the United States. However, little is known of differences in trends in quality performance between rural and urban home health agencies over time. This study aimed to examine disparities in quality performance between rural and urban home health agencies between 2014 and 2018. METHODS: This is a cohort study using 2014-2018 national Home Health Compare data and Providers of Service Profile data, including 7,908 home health agencies, of which 1,537 were rural agencies. Quality performance measures included timely initiation of care, hospitalization, and emergency department (ED) visits. Two-level hierarchical regression models were used to identify rural-urban differences in these quality indicators over time when controlling organizational characteristics. FINDINGS: Rural agencies were less likely to be for-profit and accredited, and more likely to be hospital-based, serve both Medicare and Medicaid beneficiaries, and have hospice programs. Rural agencies consistently outperformed on timely initiation of care over time, and urban agencies consistently outperformed on hospitalization and ED visits over time. These gaps between rural and urban agencies were steady over time except the gap in hospitalization, which slightly narrowed over time (Coef. = 0.11, P = .001 for urban and year interaction term). CONCLUSIONS: Significant differences exist in quality of care between rural and urban home health agencies and such differences have not been significantly narrowed over time. To reduce rural-urban disparities, policy makers should take into account unique challenges faced by urban and rural agencies when making policy decisions.

Applying the Health Belief Model to Quantify and Investigate Expectations for Computerized Cognitive Training.

Despite the demonstrated benefits of computerized cognitive training for older adults, little is known about the determinants of training behavior. We developed and tested scales to quantify expectations about such training, examine whether expectations predicted training adherence, and explore if training expectations changed from pre- to post-training. Participants (N=219) were healthy older adults aged 55-96 years (M=75.36, SD=9.39), enrolled in four studies investigating Dakim, Insight, or Posit Science Brain Fitness computerized cognitive training programs. Instruments were adapted from existing health behavior scales: Self Efficacy for Cognitive Training, Outcome Expectations for Cognitive Training, Perceived Susceptibility to Cognitive Decline, Dementia or Alzheimer's Disease, and Perceived Severity of Cognitive Decline, Dementia or Alzheimer's Disease. Participants completed scales at baseline (N=219) and post-training (n=173). Eight composites were derived from factor analyses. Adherence rates were high (M=81%), but none of the composites predicted training adherence. There was an overall significant effect of time, Wilks' λ=.843, F(8, 114)=2.65, p=.010, partial η 2 =.157, a significant overall effect of training group, Wilks' λ=.770, F(16, 228)=1.99, p=.015, partial η 2 =.123, and an overall significant group x time interaction, Wilks' λ=.728, F(16, 226)=2.44, p=.002, partial η 2 =.147. Significant effects of time were found for expected psychological outcomes and self-efficacy. Post-training, participants more strongly agreed that training was enjoyable and increased their sense of accomplishment. Changes in self-efficacy for cognitive training varied by program, improvingfor Dakim- and declining for the more challenging Brain Fitness- and InSight participants. These newly devised scales may be useful for examining cognitive training behaviors. However, more work is needed to understand factors that influence older adults' enrollment in and adherence to cognitive training.

Patients' and caregivers' perspectives in determining discharge readiness from home health.

There are no national, empirically derived clinical decision support tools to assist the interprofessional home health team in determining readiness for discharge from skilled home health. Eliciting patient and family caregiver perspectives around readiness for home health discharge is integral to developing tools that address their needs in this decision-making process. The purpose of this study was to describe the factors home health patients and their family caregivers perceive as critical when determining readiness for discharge from services. A qualitative descriptive study was conducted among skilled home health recipients and their family caregivers who were either recently discharged or recertified for additional care from two different Medicare-certified skilled home health agencies. Nine themes emerged: self-care ability, functional status, status of condition(s) and symptoms, presence of a caregiver, support for the caregiver, connection to community resources/support, safety needs of the home environment addressed, adherence to the prescribed regimen, and care coordination.

Handgrip Weakness and Asymmetry Independently Predict the Development of New Activity Limitations: Results from Analyses of Longitudinal Data from the US Health and Retirement Study.

OBJECTIVES: Examining strength asymmetries in assessments of muscle function may improve screenings for limitations in independent living tasks such as instrumental activities of daily living (IADL). We sought to determine the associations between handgrip strength (HGS) asymmetry and future IADL limitations in aging Americans. DESIGN: Longitudinal panel. SETTING AND PARTICIPANTS: Secondary analyses of data from participants aged at least 50 years from the 2006-2016 waves of the Health and Retirement Study. The analytic sample included 18,235 Americans who identified hand dominance and had measures of HGS for both hands in a single wave. METHODS: Hand dominance was self-reported, and a handgrip dynamometer measured HGS on each hand. The highest HGS values on each hand were used to calculate the HGS asymmetry ratio: (nondominant HGS/dominant HGS). Individuals with HGS asymmetry ratio <0.80 or >1.20 had HGS asymmetry. Persons with HGS asymmetry ratio <0.80 had dominant HGS asymmetry, whereas participants with HGS asymmetry ratio >1.20 had nondominant HGS asymmetry. Persons with HGS asymmetry ratio <1.0 also had their ratio inversed to make all HGS asymmetry ratios ≥1.0. IADL were self-reported. Covariate-adjusted generalized estimating equations were used for the analyses. RESULTS: Participants with HGS asymmetry had 1.12 [95% confidence interval (CI): 1.03-1.20] greater odds for future IADL limitations. Each HGS asymmetry dominance group also had greater odds for future IADL limitations: 1.09 (CI: 1.01-1.18) for individuals with dominant HGS asymmetry and 1.29 (CI: 1.09-1.52) for persons with nondominant HGS asymmetry. Every 0.10 increase in inverted HGS asymmetry ratio was associated with 1.30 (CI: 1.07-1.57) greater odds for future IADL limitations. CONCLUSIONS AND IMPLICATIONS: Assessing HGS asymmetry, as another potential biomarker of impaired muscle function, may provide novel insights for predicting IADL limitations. Future research should continue examining how strength asymmetries, and other aspects of muscle function beyond maximal strength, factor into the disabling cascade.

Surviving COVID-19 After Hospital Discharge: Symptom, Functional, and Adverse Outcomes of Home Health Recipients.

BACKGROUND: Little is known about recovery from coronavirus disease 2019 (COVID-19) after hospital discharge. OBJECTIVE: To describe the home health recovery of patients with COVID-19 and risk factors associated with rehospitalization or death. DESIGN: Retrospective observational cohort. SETTING: New York City. PARTICIPANTS: 1409 patients with COVID-19 admitted to home health care (HHC) between 1 April and 15 June 2020 after hospitalization. MEASUREMENTS: Covariates and outcomes were obtained from the mandated OASIS (Outcome and Assessment Information Set). Cox proportional hazards models were used to estimate the hazard ratio (HR) of risk factors associated with rehospitalization or death. RESULTS: After an average of 32 days in HHC, 94% of patients were discharged and most achieved statistically significant improvements in symptoms and function. Activity-of-daily-living dependencies decreased from an average of 6 (95% CI, 5.9 to 6.1) to 1.2 (CI, 1.1 to 1.3). Risk for rehospitalization or death was higher for male patients (HR, 1.45 [CI, 1.04 to 2.03]); White patients (HR, 1.74 [CI, 1.22 to 2.47]); and patients with heart failure (HR, 2.12 [CI, 1.41 to 3.19]), diabetes with complications (HR, 1.71 [CI, 1.17 to 2.52]), 2 or more emergency department visits in the past 6 months (HR, 1.78 [CI, 1.21 to 2.62]), pain daily or all the time (HR, 1.46 [CI, 1.05 to 2.05]), cognitive impairment (HR, 1.49 [CI, 1.04 to 2.13]), or functional dependencies (HR, 1.09 [CI, 1.00 to 1.20]). Eleven patients (1%) died, 137 (10%) were rehospitalized, and 23 (2%) remain on service. LIMITATIONS: Care was provided by 1 home health agency. Information on rehospitalization and death after HHC discharge is not available. CONCLUSION: Symptom burden and functional dependence were common at the time of HHC admission but improved for most patients. Comorbid conditions of heart failure and diabetes, as well as characteristics present at admission, identified patients at greatest risk for an adverse event. PRIMARY FUNDING SOURCE: No direct funding.

Diagnostic Sensitivity of the Dynamic Appraisal of Situational Aggression to Predict Violence and Aggression by Behavioral Health Patients in the Emergency Department.

INTRODUCTION: The Dynamic Appraisal of Situational Aggression (DASA) is an assessment tool that has been validated to predict violent or aggressive behavior in psychiatric inpatient settings. Its validity has not been established for use in the emergency department. METHODS: The DASA was implemented within the electronic health record of an academic medical center with inpatient psychiatric services. A retrospective analysis was conducted using Spearman rank-correlation coefficients to compare a final risk score with the subsequent occurrence of violence or aggression, defined as the use of hard leather physical restraints or the administration of intramuscular sedative medication. A receiver operating characteristic curve was used to summarize the predictive accuracy of the tool to assess aggression in behavioral health patients in the emergency department. RESULTS: A total of 3,433 scores were analyzed, representing 1,548 patients. The DASA had predictive validity with increasing scores comparing all tested cutoff scores against incidence of violence and aggression. The area under the curve comparing scores of 0 versus more than 0 was 0.79. The median time to subsequent aggression was 110 minutes. DISCUSSION: The DASA has predictive validity for use in evaluating behavioral health patients in the ED setting in an urban academic medical center. The tool is capable of predicting violence or aggression within a time frame conducive to the implementation of noninvasive measures. The DASA should be tested in other ED settings to further establish its predictive validity.

Relationships Between Race/Ethnicity and Health Care Utilization Among Older Post-Acute Home Health Care Patients.

Few studies have explored racial/ethnic differences in health care outcomes among patients receiving home health care (HHC), despite known differences in other care settings. We conducted a retrospective cohort study examining racial/ethnic disparities in rehospitalization and emergency room (ER) use among post-acute patients served by a large northeastern HHC agency between 2013 and 2014 (N = 22,722). We used multivariable binomial logistic regression to describe the relationship between race/ethnicity and health care utilization outcomes, adjusting for individual-level factors that are conceptually related to health service use. Overall rates of rehospitalization and ER visits were 10% and 13%, respectively. African American and Hispanic patients experienced higher odds of ER visits or rehospitalization during their HHC episode. Racial/ethnic differences in utilization were mediated by enabling factors, such as caregiver availability, and illness-level factors, such as illness severity, functional status, and symptoms. Intervention targets may include early risk assessment, proactive management of clinical conditions, rehabilitative therapy, and caregiver training.

Autopsy as a form of evisceration: Implications for decomposition rate, pattern, and estimation of postmortem interval.

Evisceration following penetrating trauma or animal scavenging has the potential to affect the probative value of biological evidence and postmortem interval estimation. Autopsy presents an opportunity for controlled assessment of the rate of decomposition following evisceration. A balanced sample of twenty-six human cadavers was used to assess intergroup rate and trajectory of decomposition at the Forensic Investigation Research Station in Whitewater, Colorado. A linear mixed model using maximum likelihood estimates showed that the decomposition rate did not differ between autopsied and non-autopsied donors based on a comparison of slopes χ2(1)=0.223, p=0.637. The results demonstrate that penetrating trauma and the loss of systemic continuity following evisceration affect the pattern of decomposition, but not the rate. This suggests that the bloat phase may not be a major catalyst of decomposition, and that evisceration may not preclude the use of scopic methods for estimating postmortem interval, when sufficient peripheral tissue is retained.