bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impaired Quadriceps Rate of Torque Development and Knee Mechanics After Anterior Cruciate Ligament Reconstruction With Patellar Tendon Autograft
Authors: Kline Paul W. , Morgan Kristin D. , Johnson Darren L. , Ireland Mary Lloyd , Noehren Brian 
Published: August 2015

Background: Rate of torque development (RTD) measures the ability of a muscle to produce torque quickly. Decreased quadriceps RTD may impair performance of sporting tasks after surgery. Currently, little is known about variations in quadriceps RTD between anterior cruciate ligament (ACL)–reconstructed and noninjured limbs. Purpose: To determine the differences in RTD of the quadriceps, the rate and timing of knee extensor moment (KEM) development, and knee flexion excursion during running after ACL reconstruction with patellar tendon autograft. Study Design: Cross-sectional study; Level of evidence, 3. Methods: This study involved 21 patients (11 female) 6 months after ACL reconstruction with patellar tendon autograft (median [IQR]: age, 18 [16-20] years; mass, 68.18 [61.34-75] kg; height, 1.74 [1.66-1.78] m). Patients performed four 5-second maximal voluntary isometric strength trials of both limbs on an isokinetic dynamometer. RTD was calculated as the mean slope of the torque-time curve between 20% and 80% of total time to peak torque. Then, patients underwent 3-dimensional motion analysis while running on an instrumented treadmill at a self-selected running speed (mean ± SD, 2.68 ± 0.28 m/s). The rate of knee extensor moment (RKEM) was calculated as the mean slope of the moment curve between 10% and 30% of stance phase. Between-limb comparisons were determined with a paired t test for peak KEM, RKEM, knee flexion excursion during 10% to 30% of stance, and time to generate KEM. Results: In the reconstructed limb, deficits in the peak rate of quadriceps torque development compared with the noninjured limb existed both isometrically (RTD, 257.56 vs 569.11 Nm/s; P < .001) and dynamically (RKEM, 16.47 vs 22.38 Nm/kg·m·s; P < .001). The reconstructed limb also generated a KEM later in the stance phase compared with the noninjured limb (11.37% vs 9.61% stance; P < .001) and underwent less knee flexion excursion (15.5° vs 19.8°; P < .001). Conclusion: After ACL reconstruction with patellar tendon autograft, patients have lower RTD and RKEM in the reconstructed limb. Deviations in RTD and the timing of the KEM can change the way the knee is loaded and can potentially increase injury risk and future development of posttraumatic osteoarthritis. Rehabilitation should consider exercises designed to improve RTD and prepare the limb for the demands of sport performance.
Developing organisational ethics in palliative care
Authors: Sandman Lars , Molander Ulla , Benkel Inger 
Published: August 2015

Background: Palliative carers constantly face ethical problems. There is lack of organised support for the carers to handle these ethical problems in a consistent way. Within organisational ethics, we find models for moral deliberation and for developing organisational culture; however, they are not combined in a structured way to support carers’ everyday work. Research objective: The aim of this study was to describe ethical problems faced by palliative carers and develop an adapted organisational set of values to support the handling of these problems. Research design: Ethical problems were mapped out using focus groups and content analysis. The organisational culture were developed using normative analysis and focus group methodology within a participatory action research approach. Main participants and research context: A total of 15 registered nurses and 10 assistant nurses at a palliative unit (with 19 patient beds) at a major University Hospital in Sweden. Ethical considerations: The study followed standard ethics guidelines concerning informed consent and confidentiality. Findings: We found six categories of ethical problems (with the main focus on problems relating to the patient’s loved ones) and five categories of organisational obstacles. Based on these findings, we developed a set of values in three levels: a general level, an explanatory level and a level of action strategies. Discussion: The ethical problems found corresponded to problems in other studies with a notable exception, the large focus on patient loved ones. The three-level set of values is a way to handle risks of formulating abstract values not providing guidance in concrete care voiced in other studies. Conclusion: Developing a three-level set of values adapted to the specific ethical problems in a concrete care setting is a first step towards a better handling of ethical problems.
Impact of a Centralized Inpatient Hospice Unit in an Academic Medical Center
Authors: Jegier Briana J. , O’Mahony Sean , Johnson Julie , Flaska Rita , Perry Anthony , Runge Mary , Sommerfeld Teri 
Published: August 2015

Objective: Rush University Medical Center (RUMC) and Horizon Hospice opened the first centralized inpatient hospice unit (CIPU) in a Chicago academic medical center in 2012. This study examined if there was a difference in cost or length of stay (LOS) in a CIPU compared to hospice care in scattered beds throughout RUMC. Study Design and Methods: This retrospective, cross-sectional study compared cost and LOS for patients admitted to the CIPU (n = 141) and those admitted to hospice scattered beds (SBM) throughout RUMC (n = 56). Results: The CIPU patients had a median LOS of 6.0 days versus 2.0 days for SBM patients. Conclusions: The CIPU patients had longer hospice LOS but lower hospital costs. Academic medical centers may benefit from aggregating hospice beds.
Use of Medical Devices in Hospice for Symptom Management
Authors: Shah Nidhi , Homel Peter , Breznay Jennifer 
Published: August 2015

Background: Home health services in the United States(US) have been on a rise. Hospice patients cope with diverse physical and pain symptoms; medical devices are used for symptom management to improve their quality-of-care at end-of-life. Objective: Using the National Home and Hospice Care Survey (NHHCS), the study summarizes medical device use for symptom management and tracks various demographic variables for home hospice patients. Methods: A cross-sectional analysis of data using the 2007 NHHCS was conducted. There were 4733 hospice discharges which corresponded to 2,505,011 individuals in US with sampling weights. The data was analyzed using chi square tests and confounding factors adjusted with logistic regression. Results: Eighty-nine percent of hospice discharges were evaluated for pain at first assessment. The regression model for pain at first assessment was significantly associated with use of patient controlled analgesia (OR = 1.82, 95% CI = 1.28, 2.59) and urinary catheters (OR = 1.16, 95% CI = 1.02, 1.33). Patient with dyspnea were associated with significant use of oxygen (OR = 3.00, 95% CI = 2.64, 3.40) and metered dose inhaler (OR = 2.43, 95% CI = 1.92, 3.07). There was negligible use of total parenteral nutrition (TPN) noted in the study. Conclusion: In conclusion, the study highlights medical device use in home hospice care for end-of-life symptom management. It noted the significant use of IV infusion pumps and patient controlled analgesia. Conversely, there is little use of TPN or CPAP in patients with anorexia or dyspnea. While missing data on critical symptom evaluations regrettably raises questions about the validity of the study, the NHHCS serves as an important reservoir of data on the growing population of home hospice patients.
Tissue Factor and Tissue Factor Pathway Inhibitor in the Wound-Healing Process After Neurosurgery
Authors: Ślusarz Robert , Głowacka Mariola , Biercewicz Monika , Barczykowska Ewa , Haor Beata , Rość Danuta , Gadomska Grażyna 
Published: August 2015

Objectives: The aim of the study was to assess the concentrations of tissue factor (TF) and tissue factor pathway inhibitor (TFPI) in the blood of patients with a postoperative wound after neurosurgery. Method: Participants included 20 adult patients who underwent neurosurgery because of degenerative spine changes. The concentration of TF and TFPI in the patients’ blood serum was measured 3 times: before surgery, during the first 24 hr after surgery, and between the 5th and 7th days after surgery. The control group comprised 20 healthy volunteers similar to the patient group with respect to gender and age. Results: A statistically significant difference was observed between TF concentration at all three measurement time points in the research group and TF concentration in the control group ( p = .018, p = .010, p = .001). A statistically significant difference was found between TFPI concentration at the second time point in the research group and TFPI concentration in the control group ( p = .041). No statistically significant within-subject difference was found between TF concentrations before and after surgery. A statistically significant within-subject difference was found between TFPI concentrations within 24 hr after surgery and 5–7 days after surgery ( p = .004). Conclusion: High perioperative concentrations of TF indicate not only the presence of thrombophilia but also the importance of TF in the wound-healing process. Perioperative changes in TFPI concentrations are related to its compensatory influence on hemostasis in thrombophilic conditions.
Effects of Exercise on Select Biomarkers and Associated Outcomes in Chronic Pain Conditions
Authors: Kawi Jennifer , Lukkahatai Nada , Inouye Jillian , Thomason Diane , Connelly Kirsten 
Published: August 2015

Background: Chronic pain is highly prevalent. Current management is challenged by lack of validated objective measures like biological markers. Clinical pain studies employing exercise interventions have evaluated biomarkers; however, it is unclear how exercise impacts biomarkers involved in pain pathways and whether these markers are associated with relevant pain-related outcomes. This systematic review evaluates data from clinical studies employing exercise interventions in chronic musculoskeletal nonmalignant pain conditions in which biomarkers in pain pathways were measured. Method: Published research studies from several databases were examined using the Jadad Scale for assessing the quality of clinical studies. Results: Twelve research studies were reviewed. Jadad scores ranged from 5 to 11 out of 13 points. Inflammatory markers were most commonly measured followed by neurotransmitter-related genes and metabolite-detecting genes. After exercise interventions, changes in biomarkers involved in neurotransmission and inflammation suggest a hypoalgesic exercise effect. Significant biomarker associations were found with pain intensity, fatigue, depression, anxiety, and quality of life. However, there were varying methodologies in the studies reviewed. Discussion: It remains a question whether biomarkers can be used as objective measures for risk assessment, diagnosis, or evaluation or as surrogate endpoints in chronic pain. Adequate sample sizes, optimal exercise dose determination, study replications, and longitudinal research studies with consistent methodologies are warranted. Regardless, the potential translational value of biomarkers in chronic pain is evident. Advancing nursing research in biomarkers is vital for moving the nursing discipline and clinical chronic pain practice forward. Developing a biobehavioral perspective in chronic pain is also necessary for comprehensive management.
Implementation factors affecting the large-scale deployment of digital health and well-being technologies: A qualitative study of the initial phases of the ‘Living-It-Up’ programme
Authors: Agbakoba Ruth , McGee-Lennon Marilyn , Bouamrane Matt-Mouley , Watson Nicholas , Mair Frances S 
Published: August 2015

Little is known about the factors which facilitate or impede the large-scale deployment of health and well-being consumer technologies. The Living-It-Up project is a large-scale digital intervention led by NHS 24, aiming to transform health and well-being services delivery throughout Scotland. We conducted a qualitative study of the factors affecting the implementation and deployment of the Living-It-Up services. We collected a range of data during the initial phase of deployment, including semi-structured interviews (N = 6); participant observation sessions (N = 5) and meetings with key stakeholders (N = 3). We used the Normalisation Process Theory as an explanatory framework to interpret the social processes at play during the initial phases of deployment. Initial findings illustrate that it is clear − and perhaps not surprising − that the size and diversity of the Living-It-Up consortium made implementation processes more complex within a ‘multi-stakeholder’ environment. To overcome these barriers, there is a need to clearly define roles, tasks and responsibilities among the consortium partners. Furthermore, varying levels of expectations and requirements, as well as diverse cultures and ways of working, must be effectively managed. Factors which facilitated implementation included extensive stakeholder engagement, such as co-design activities, which can contribute to an increased ‘buy-in’ from users in the long term. An important lesson from the Living-It-Up initiative is that attempting to co-design innovative digital services, but at the same time, recruiting large numbers of users is likely to generate conflicting implementation priorities which hinder − or at least substantially slow down − the effective rollout of services at scale. The deployment of Living-It-Up services is ongoing, but our results to date suggest that − in order to be successful − the roll-out of digital health and well-being technologies at scale requires a delicate and pragmatic trade-off between co-design activities, the development of innovative services and the efforts allocated to widespread marketing and recruitment initiatives.
Does prior local corticosteroid injection prejudice the outcome of subsequent carpal tunnel decompression?
Authors: Bland J. D. P. , Ashworth N. L. 
Published: August 2015

It has been suggested that treatment of carpal tunnel syndrome by local corticosteroid injection may prejudice the outcome of subsequent surgery. We identified patients who had proceeded directly to carpal tunnel surgery and patients who had initially been treated with one or more injections and then subsequently underwent carpal tunnel surgery on the same hand. Outcomes of surgery were evaluated using pre- and post-operative Boston carpal tunnel syndrome scales and an ordinal scale for overall satisfaction. Multivariate models were created to study the effect of pre-operation injection on the surgical outcome while controlling for demographic and clinical variables. A total of 942 patients were included; 85% of the direct group and 84% of the prior-injection group reported themselves either completely cured or much improved after surgery. Post-operative symptom severity and functional status scores showed no significant difference between the direct-to-surgery and prior-injection groups. Prior local steroid injection does not prejudice the outcome of surgery. Level of Evidence: IV
Beyond cigarette smoking: smoke-free home rules and use of alternative tobacco products
Authors: Zhang Xiao , Martinez-Donate Ana P , Kuo Daphne , Piper Megan 
Published: August 2015

Background: A smoke-free home rule has been associated with reduced cigarette consumption; however, it is unknown whether a home rule is associated with the use of alternative tobacco products (ATP) such as smokeless tobacco products, regular and water pipes, and cigars. This study examined the association between the smoke-free home rules and ever and current use of ATP. Method: Data from the 2010–2011 US Tobacco Use Supplements to the Current Population Survey were analysed using multivariable logistic regressions, including variables related to smoke-free home rules. Results: Overall, 83.9% respondents reported a smoke-free home rule inside their homes; 20.6% of respondents had tried at least one type of ATP, and 3.9% were current users in 2010–2011. Having a smoke-free home rule was associated with lower likelihood of current versus never use of any ATP (adjusted odds ratio (AOR) = 0.80, 95% confidence interval (CI): 0.77–0.83). Among ever users of any ATP, the existence of a smoke-free home rule was associated with lower odds of being a current user (AOR = 0.49, 95% CI: 0.43–0.56). Similar associations were observed for each type of ATP examined (p < 0.05). Conclusion: Smoke-free home rules are associated with lower current ATP use among the US population. Future research should examine whether promoting smoke-free home rules could help to reduce ATP use and related diseases.
Are Risk Indices Derived From CGM Interchangeable With SMBG-Based Indices?
Authors: Fabris Chiara , Patek Stephen D. , Breton Marc D. 
Published: August 2015

Background: The risk of hypo- and hyperglycemia has been assessed for years by computing the well-known low blood glucose index (LBGI) and high blood glucose index (HBGI) on sparse self-monitoring blood glucose (SMBG) readings. These metrics have been shown to be predictive of future glycemic events and clinically relevant cutoff values to classify the state of a patient have been defined, but their application to continuous glucose monitoring (CGM) profiles has not been validated yet. The aim of this article is to explore the relationship between CGM-based and SMBG-based LBGI/HBGI, and provide a guideline to follow when these indices are computed on CGM time series. Methods: Twenty-eight subjects with type 1 diabetes mellitus (T1DM) were monitored in daily-life conditions for up to 4 weeks with both SMBG and CGM systems. Linear and nonlinear models were considered to describe the relationship between risk indices evaluated on SMBG and CGM data. Results: LBGI values obtained from CGM did not match closely SMBG-based values, with clear underestimation especially in the low risk range, and a linear transformation performed best to match CGM-based LBGI to SMBG-based LBGI. For HBGI, a linear model with unitary slope and no intercept was reliable, suggesting that no correction is needed to compute this index from CGM time series. Conclusions: Alternate versions of LBGI and HBGI adapted to the characteristics of CGM signals have been proposed that enable extending results obtained for SMBG data and using clinically relevant cutoff values previously defined to promptly classify the glycemic condition of a patient.
Economic Value of Improved Accuracy for Self-Monitoring of Blood Glucose Devices for Type 1 Diabetes in Canada
Authors: McQueen R. Brett , Breton Marc D. , Ott Markus , Koa Helena , Beamer Bruce , Campbell Jonathan D. 
Published: August 2015

Objective: The objective was to simulate and compare clinical and economic outcomes of self-monitoring of blood glucose (SMBG) devices along error ranges and strip price. Methods: We programmed a type 1 diabetes natural history and treatment cost-effectiveness model. In phase 1, using past evidence from in silico modeling validated by the Food and Drug Administration, we associated changes in SMBG error to changes in hemoglobin A1c (HbA1c) and separately, changes in severe hypoglycemia requiring an inpatient stay. In phase 2, using Markov cohort simulation modeling, we estimated clinical and economic outcomes from the Canadian payer perspective. The primary comparison was a SMBG device with strip price $0.73 Canadian dollars (CAD) and 10% error (exceeding accuracy requirements by International Organization for Standardization (ISO) 15197:2013) versus a SMBG device with strip price $0.60 CAD and 15% error (accuracy meeting ISO 15197:2013). Outcomes for the average patient, were quality-adjusted life years (QALYs), incremental cost-effectiveness ratios (ICERs), and budget impact. Results: Assuming benefits translate into HbA1c improvements only, the ICER with 10% error versus 15% was $11 500 CAD per QALY. Assuming the benefits translate into reduced severe hypoglycemia requiring an inpatient stay only, an SMBG device with 10% error dominated (ie, less costly, more effective) an SMBG device with 15% error. The 3-year budget impact findings ranged from $0.004 CAD per member per month for HbA1c improvements to cost-savings for severe hypoglycemia reductions. Conclusions: From efficiency (cost-effectiveness) and affordability (budget impact) payer perspectives, investing in devices with improved accuracy (less error) appears to be an efficient and affordable strategy.
Lower Extremity Amputation and Mortality Rates in the Reconstructed Diabetic Charcot Foot and Ankle With External Fixation
Authors: Ramanujam Crystal L. , Han David , Zgonis Thomas 
Published: August 2015

The aim of this study was to determine the lower extremity amputation and mortality rates of a group of patients who underwent reconstructive surgery using circular external fixation for treatment of diabetic Charcot neuroarthropathy (CN) of the foot and/or ankle. Existing studies regarding lower extremity amputation or mortality rates for diabetic CN of the foot and/or ankle have been performed on mostly conservatively treated patients. The objective of the statistical analysis in this studied population was to understand the difference in overall amputation and mortality rates between the 2 main groups: one with foot and/or ankle ulceration (group 1), and the other without ulceration or osteomyelitis (group 2, control group). Within group 1, 2 subgroups were established: one with osteomyelitis (group 1A) and the other without osteomyelitis (group 1B). Initially, a retrospective analysis of 150 consecutive surgically reconstructed diabetic foot and ankle cases using circular external fixation from January 2005 through December 2012 was conducted. Those which were not supported with the diagnosis of diabetic CN were excluded and the 2 other charts without proper follow-up duration (6 months) for analysis were removed, resulting in the final sample size of N = 116. There were a total of n = 7 (6.0%) below the knee amputations (group 1A = 1, group 1B = 4, and group 2 = 2) with a total of n = 5 mortalities (4.3%) (group 1A = 2, group 1B = 2, and group 2 = 1). The total amount of time for a lower extremity amputation event (n = 7) since the time of surgical reconstruction was 729.43 ± 519.73 days (range 230-1777 days) while for a mortality event (n = 5), it was 1302.00 ± 765.48 days (range 633-2499 days). Levels of Evidence: Prognostic, Level III: Retrospective study
Platelet-Rich Plasma May Improve Osteochondral Donor Site Healing in a Rabbit Model
Authors: Smyth Niall A. , Haleem Amgad M. , Ross Keir A. , Hannon Charles P. , Murawski Christopher D. , Do Huong T. , Kennedy John G. 
Published: August 2015

Purpose The purpose of this study was to assess the effect(s) of platelet-rich plasma (PRP) on osteochondral donor site healing in a rabbit model. Methods Osteochondral donor sites 3 mm in diameter and 5 mm in depth were created bilaterally on the femoral condyles of 12 New Zealand White rabbits. Knees were randomized such that one knee in each rabbit received an intra-articular injection of PRP and the other received saline (placebo). Rabbits were euthanized at 3, 6, and 12 weeks following surgery. Repair tissue was evaluated using the International Cartilage Repair Society (ICRS) macroscopic and histological scores. Results No complications occurred as a result of the interventions. There was no significant difference in macroscopic scores between the 2 groups (5.5 ± 3.8 vs. 3.8 ± 3.5; P = 0.13). Subjective macroscopic assessment determined greater tissue infill with fewer fissures and a more cartilage-like appearance in PRP-treated knees. Overall ICRS histological scores were better in the PRP group compared with the placebo (9.8 ± 2.0 vs. 7.8 ± 1.8; P = 0.04). Histological scores were also higher in the PRP group compared with the placebo group at each time point. Greater glycosaminoglycan and type II collagen content were noted in the repair tissue of the PRP group compared with the placebo group. Conclusion The results of this study indicate that PRP used as an intra-articular injection may improve osteochondral healing in a rabbit model.