bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Social Support and Marital Status on Perceived Surgical Effectiveness and 30-Day Hospital Readmission
Authors: Adogwa Owoicho , Elsamadicy Aladine A. , Vuong Victoria D. , Mehta Ankit I. , Vasquez Raul A. , Cheng Joseph , Bagley Carlos A. , Karikari Isaac O. 
Published: April 2017

Study Design: Retrospective cohort review. Objective: To determine whether higher levels of social support are associated with improved surgical outcomes after elective spine surgery. Methods: The medical records of 430 patients (married, n = 313; divorced/separated/widowed, n = 71; single, n = 46) undergoing elective spine surgery at a major academic medical center were reviewed. Patients were categorized by their marital status at the time of surgery. Patient demographics, comorbidities, and postoperative complication rates were collected. All patients had prospectively collected outcomes measures and a minimum of 1-year follow-up. Patient reported outcomes instruments (Oswestry Disability Index, Short Form–36, and visual analog scale–back pain/leg pain) were completed before surgery, then at 1 year after surgery. Results: Baseline characteristics were similar in all cohorts. There was no statistically significant difference in the length of hospital stay across all 3 cohorts, although “single patients” had longer duration of in-hospital stays that trended toward significance (single 6.24 days vs married 4.53 days vs divorced/separated/widowed 4.55 days, P = .05). Thirty-day readmission rates were similar across all cohorts (married 7.03% vs divorced/separated/widowed 7.04% vs single 6.52%, P = .99). Additionally, there were no significant differences in baseline and 1-year patient reported outcomes measures between all groups. Conclusions: Increased social support did not appear to be associated with superior short and long-term clinical outcomes after spine surgery; however, it was associated with a shorter duration of in-hospital stay with no increase in 30-day readmission rates.
Trends and Cost of Posterior Cervical Fusions With and Without Recombinant Human Bone Morphogenetic Protein-2 in the US Medicare Population
Authors: Myhre Sue Lynn , Buser Zorica , Meisel Hans-Joerg , Brodke Darrel S. , Yoon S. Tim , Wang Jeffrey C. , Park Jong-Beom , Youssef Jim A. 
Published: April 2017

Study Design: Retrospective database review. Objective: To analyze and report the trends and cost of posterior cervical fusions (PCFs) with and without off-label recombinant human bone morphogenetic protein-2 (rhBMP-2) in the Medicare population. Methods: Patient records from the PearlDiver database were retrospectively reviewed from January 1, 2005, to December 31, 2012, to distinguish individuals who underwent a PCF with or without rhBMP-2. Total numbers, incidence, age, gender, geographic region, reimbursement, and length of stay were analyzed and summarized. Results: The combined total of non-rhBMP-2 (n = 39 479; 85.51%) and rhBMP-2 PCF (n = 6692; 14.49%) procedures performed between 2005 and 2012 was 46 171. In general, the number of PCFs without rhBMP-2 consistently increased over time, while the number of PCFs with rhBMP-2 had only a slight increase from 2005 to 2012. On average, PCFs without rhBMP-2 were associated with $1197 higher cost than those with rhBMP-2, but the average length of stay was similar (6 days). From 2005 to 2012, the average cost for procedures with and without rhBMP-2 increased by $12 605 and $7291, respectively. The percentage of rhBMP-2 use peaked in 2007 and dwindled until 2010, and declined an additional 2.84% from 2011 to 2012. Multiple age, region, and gender tendencies were observed. Conclusions: To our knowledge, this was the first study to use the PearlDiver database to report incidence and cost trends of PCF procedures. This article provides meaningful trend data on PCFs to surgeons and clinicians, researchers, and patients, as well as functions as a beacon for future research questions.
Vertebral Column Resection for Rigid Spinal Deformity
Authors: Saifi Comron , Laratta Joseph L. , Petridis Petros , Shillingford Jamal N. , Lehman Ronald A. , Lenke Lawrence G. 
Published: April 2017

Study Design: Broad narrative review. Objective: To review the evolution, operative technique, outcomes, and complications associated with posterior vertebral column resection. Methods: A literature review of posterior vertebral column resection was performed. The authors’ surgical technique is outlined in detail. The authors’ experience and the literature regarding vertebral column resection are discussed at length. Results: Treatment of severe, rigid coronal and/or sagittal malalignment with posterior vertebral column resection results in approximately 50–70% correction depending on the type of deformity. Surgical site infection rates range from 2.9% to 9.7%. Transient and permanent neurologic injury rates range from 0% to 13.8% and 0% to 6.3%, respectively. Although there are significant variations in EBL throughout the literature, it can be minimized by utilizing tranexamic acid intraoperatively. Conclusion: The ability to correct a rigid deformity in the spine relies on osteotomies. Each osteotomy is associated with a particular magnitude of correction at a single level. Posterior vertebral column resection is the most powerful posterior osteotomy method providing a successful correction of fixed complex deformities. Despite meticulous surgical technique and precision, this robust osteotomy technique can be associated with significant morbidity even in the most experienced hands.
A Novel Spinal Implant for Fusionless Scoliosis Correction: A Biomechanical Analysis of the Motion Preserving Properties of a Posterior Periapical Concave Distraction Device
Authors: Holewijn Roderick M. , de Kleuver Marinus , van der Veen Albert J. , Emanuel Kaj S. , Bisschop Arno , Stadhouder Agnita , van Royen Barend J. , Kingma Idsart 
Published: April 2017

Study Design: Biomechanical study. Objective: Recently, a posterior concave periapical distraction device for fusionless scoliosis correction was introduced. The goal of this study was to quantify the effect of the periapical distraction device on spinal range of motion (ROM) in comparison with traditional rigid pedicle screw-rod instrumentation. Methods: Using a spinal motion simulator, 6 human spines were loaded with 4 N m and 6 porcine spines with 2 N m to induce flexion-extension (FE), lateral bending (LB), and axial rotation (AR). ROM was measured in 3 conditions: untreated, periapical distraction device, and rigid pedicle screw-rod instrumentation. Results: The periapical distraction device caused a significant ( P < .05) decrease in ROM of FE (human, −40.0% and porcine, −55.9%) and LB (human, −18.2% and porcine, −17.9%) as compared to the untreated spine, while ROM of AR remained unaffected. In comparison, rigid instrumentation caused a significantly ( P < .05) larger decrease in ROM of FE (human, −80.9% and porcine, −94.0%), LB (human, −75.0% and porcine, −92.2%), and AR (human, −71.3% and porcine, −86.9%). Conclusions: Although no destructive forces were applied, no device failures were observed. Spinal ROM was significantly less constrained by the periapical distraction device compared to rigid pedicle screw-rod instrumentation. Therefore, provided that scoliosis correction is achieved, a more physiological spinal motion is expected after scoliosis correction with the posterior concave periapical distraction device.
The Functional Arm Scale for Throwers (FAST)—Part II: Reliability and Validity of an Upper Extremity Region-Specific and Population-Specific Patient-Reported Outcome Scale for Throwing Athletes
Authors: Huxel Bliven Kellie C. , Snyder Valier Alison R. , Bay R. Curtis , Sauers Eric L. 
Published: April 2017

Background: The Functional Arm Scale for Throwers (FAST) is an upper extremity (UE) region-specific and population-specific patient-reported outcome (PRO) scale developed to measure health-related quality of life in throwers with UE injuries. Stages I and II, described in a companion paper, of FAST development produced a 22-item scale and a 9-item pitcher module. Stage III of scale development, establishing reliability and validity of the FAST, is reported herein. Purpose: To describe stage III of scale development: reliability and validity of the FAST. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: Data from throwing athletes collected over 5 studies were pooled to assess reliability and validity of the FAST. Reliability was estimated using FAST scores from 162 throwing athletes who were injured (n = 23) and uninjured (n = 139). Concurrent validity was estimated using FAST scores and Disabilities of the Arm, Shoulder, and Hand (DASH) and Kerlan-Jobe Orthopaedic Clinic (KJOC) scores from 106 healthy, uninjured throwing athletes. Known-groups validity was estimated using FAST scores from 557 throwing athletes who were injured (n = 142) and uninjured (n = 415). Reliability and validity were assessed using intraclass correlation coefficients (ICCs), and measurement error was assessed using standard error of measurement (SEM) and minimum detectable change (MDC). Receiver operating characteristic curves and sensitivity/specificity values were estimated for known-groups validity. Data from a separate group (n = 18) of postsurgical and nonoperative/conservative rehabilitation patients were analyzed to report responsiveness of the FAST. Results: The FAST total, subscales, and pitcher module scores demonstrated excellent test-retest reliability (ICC, 0.91-0.98). The SEM95 and MDC95 for the FAST total score were 3.8 and 10.5 points, respectively. The SEM95 and MDC95 for the pitcher module score were 5.7 and 15.7 points, respectively. The FAST scores showed acceptable correlation with DASH (ICC, 0.49-0.82) and KJOC (ICC, 0.62-0.81) scores. The FAST total score classified 85.1% of players into the correct injury group. For predicting UE injury status, a FAST total cutoff score of 10.0 out of 100.0 was 91% sensitive and 75% specific, and a pitcher module score of 10.0 out of 100.0 was 87% sensitive and 78% specific. The FAST total score demonstrated responsiveness on several indices between intake and discharge time points. Conclusion: The FAST is a reliable, valid, and responsive UE region-specific and population-specific PRO scale for measuring patient-reported health care outcomes in throwing athletes with injury.
Treating sickle cell disease by targeting HbS polymerization
Authors: Eaton William A. , Bunn H. Franklin 
Published: April 2017

AbstractAlthough the root cause of sickle cell disease is the polymerization of hemoglobin S (HbS) to form fibers that make red cells less flexible, most drugs currently being assessed in clinical trials are targeting the downstream sequelae of this primary event. Less attention has been devoted to investigation of the multiple ways in which fiber formation can be inhibited. In this article, we describe the molecular rationale for 5 distinct approaches to inhibiting polymerization and also discuss progress with the few antipolymerization drugs currently in clinical trials.
Thrombotic thrombocytopenic purpura: diagnostic criteria, clinical features, and long-term outcomes from 1995 through 2015
Authors: Page Evaren E. , Kremer Hovinga Johanna A. , Terrell Deirdra R. , Vesely Sara K. , George James N. 
Published: April 2017

Key Points
The diagnosis of TTP requires clinical judgment in addition to measurement of ADAMTS13 activity. Patients with TTP may not seem to be seriously ill; they may have no or only mild neurologic and kidney function abnormalities.
Therapeutic efficacy and artemisinin resistance in northern Myanmar: evidence from in vivo and molecular marker studies
Authors: Myint Moe Kyaw , Rasmussen Charlotte , Thi Aung , Bustos Dorina , Ringwald Pascal , Lin Khin 
Published: April 2017

Abstract
Background
In Myanmar, three types of artemisinin-based combination therapy (ACT) are recommended as first-line treatment of uncomplicated falciparum malaria: artemether–lumefantrine (AL), artesunate–mefloquine (AS + MQ), and dihydroartemisinin–piperaquine (DP). Resistance to both artemisinins and ACT partner drugs has been reported from the Greater Mekong Sub-region, and regular efficacy monitoring of the recommended ACT is conducted in Myanmar. This paper reports on results from studies to monitor the efficacy of the three forms of ACT in sentinel sites in northern Myanmar, and investigations of mutations in the Kelch13 (k13) propeller domain.

Methods
Seven therapeutic efficacy studies were conducted in 2011–12 and 2014 in three sentinel sites in Myanmar (Tamu, Muse, Tabeikkyin). Three studies were done for the evaluation of AL (204 patients), two studies for AS + MQ (119 patients) and two studies for DP (147 patients). These studies were done according to 2009 standard WHO protocol. Polymorphisms in the k13 propeller domain were examined in dried blood spots collected on day 0. The primary endpoint was adequate clinical and parasitological response (ACPR) on day 28 for AL and on day 42 for DP and AS + MQ, corrected to exclude re-infection using polymerase chain reaction (PCR) genotyping. Safety data were collected through self-reporting.

Results
PCR-corrected ACPR was 97.2–100% for AL, 98.6–100% for AS + MQ and 100% for DP across the study sites and years. All studies found a prevalence of k13 mutations (>440) above 23% in the day-0 samples. The F446I mutation was the most common mutation, making up 66.0% of the mutations found. Seven out of nine day-3 positive patients were infected with k13 wild type parasites. The remaining two cases with day-3 parasitaemia had the P574L mutation.

Conclusions
The efficacy of AL, AS + MQ and DP remains high in northern Myanmar despite widespread evidence of k13 mutations associated with delayed parasite clearance. This study showed that already in 2012 there was a high frequency of k13 mutations in Myanmar on the border with India. The high efficacy of the recommended ACT gives confidence in the continued recommendation of the use of these treatments in Myanmar.
Trial registration numbers ACTRN12611001245987 (registered 06-12-2011) and ACTRN12614000216617 (registered 28-02-2014)
An innovative teaching approach to product development: creating tennis wear for female baby boomers
Authors: Chae May 
Published: April 2017

AbstractTo approach innovative teaching, prototype development of tennis wear for female baby boomers was incorporated into the product development course. This semesterlong project, fully funded by Cotton Incorporated, guided students in identifying the needs of female baby boomers who play tennis and then designing appropriate tennis wear. Twelve female tennis participants aged between 55 and 66 were interviewed in a focus group. To mirror fashion industry practice, students worked in teams including with real-world clients. The functional, expressive, and aesthetic consumer needs model (Lamb and Kallal in Cloth Text Res J 10:42–47, 1992) provided the conceptual framework for the project, and the students took the FEA design criteria into account when developing tennis wear prototypes that met the needs of the baby boomers. At the end of the semester, a panel of faculty judges who fall within the age group of baby boomers and who play tennis regularly evaluated the student groups’ work and selected the three winning teams using the following criteria: creativity, quality (i.e., construction, tech pack [garment measurements], and fit), presentation (i.e., storyboard and oral presentation), and readiness for production.
End-of-Life Racial and Ethnic Disparities Among Patients With Ovarian Cancer
Authors: Taylor Jolyn S. , Rajan Suja S. , Zhang Ning , Meyer Larissa A. , Ramondetta Lois M. , Bodurka Diane C. , Lairson David R. , Giordano Sharon H. 
Published: April 2017

Purpose To assess disparities in end-of-life care among patients with ovarian cancer. Patients and Methods Using Texas Cancer Registry-Medicare data, we assessed patients with ovarian cancer deceased in 2000 to 2012 with at least 13 months of continuous Medicare coverage before death. Descriptive statistics and multivariate logistic regressions were conducted to evaluate end-of-life care, including chemotherapy in the final 14 days of life, intensive care unit (ICU) admission in the final 30 days of life, more than one emergency room (ER) or hospital admission in the final 30 days of life, invasive or life-extending procedures in the final 30 days of life, enrollment in hospice, enrollment in hospice during the final 3 days of life, and enrollment in hospice while not hospitalized. Results A total of 3,666 patients were assessed: 2,819 (77%) were white, 553 (15%) Hispanic, 256 (7%) black, and 38 (1%) other. A total of 2,642 (72%) enrolled in hospice before death, but only 2,344 (64%) died while enrolled. The median hospice enrollment duration was 20 days. In the final 30 days of life, 381 (10%) had more than one ER visit, 505 (14%) more than one hospital admission, 593 (16%) ICU admission, 848 (23%) invasive care, and 418 (11%) life-extending care. In the final 14 days of life, 357 (10%) received chemotherapy. Several outcomes differed for minorities compared with white patients. Hispanic and black patients were less likely to enroll and die in hospice (black odds ratio [OR], 0.66; 95% CI, 0.50 to 0.88; P = .004; Hispanic OR, 0.76; 95% CI, 0.61 to 0.94; P = .01). Hispanic patients were more likely to be admitted to an ICU (OR, 1.37; 95% CI, 1.05 to 1.78; P = .02), and black patients were more likely to have more than one ER visit (OR, 2.20; 95% CI, 1.53 to 3.16; P < .001) and receive a life-extending procedure (OR, 2.13; 95% CI, 1.49 to 3.04; P < .001). Conclusion We found being a minority was associated with receiving intensive and invasive end-of-life care among patients with ovarian cancer.
Sevoflurane Posttreatment Attenuates Lung Injury Induced by Oleic Acid in Dogs
Authors: Du Guizhi , Wang Shurong , Li Zhuo , Liu Jin 
Published: April 2017

BACKGROUND:
In animal models, both sevoflurane and propofol protect against acute lung injury (ALI), especially when administered prior to ALI onset. We hypothesized that when compared to propofol, sevoflurane administration after the onset of acute respiratory distress syndrome would mitigate oleic acid (OA)-induced ALI in dogs.

METHODS:
Dogs were randomly assigned to receive intravenous OA to induce ALI (n = 7 for each OA group) or saline as an OA control (n = 6 for each control). Dogs were then mechanically ventilated for 6 hours during which propofol (5 mg/kg/h) or sevoflurane (1.0 minimum alveolar concentration) was administered for sedation. Study end points included Po
2/Fio
2 ratio, pulmonary arterial pressure, pulmonary edema, histology, and tumor nuclear factor-α.

RESULTS:
In OA-injured animals, oxygenation was worse at 1, 2, 3, and 4 hours after 6-hour mechanical ventilation in sevoflurane-sedated animals compared with propofol-sedated animals, with mean difference (95% confidence interval; propofol minus sevoflurane) of 75 (39–111), 87 (55–119), 66 (44–87), and 67 (27–107) mm Hg for the respective time points. However, sevoflurane reduced the elevated pulmonary arterial pressure and vascular resistance, attenuated pulmonary edema as evidenced by reduced extravascular lung water index, and decreased tumor nuclear factor-α and diffuse alveolar damage score compared with propofol in the OA-injured lungs.

CONCLUSIONS:
When compared with propofol, sevoflurane attenuates OA-induced lung damage. However, despite this effect on lung histology and inflammation, sevoflurane worsened oxygenation in OA-induced ALI, possibly via inhibition of hypoxic pulmonary vasoconstriction.
“Mother of Her Nation”: Dr. Éléonore Sioui (1920–2006)
Authors: Labelle Kathryn Magee 
Published: April 2017

AbstractÉléonore Sioui was born in 1920—the same year that the Canadian deputy superintendent of Indian Affairs, Duncan Campbell Scott, proclaimed infamously, “Our object is to continue until there is not a single Indian in Canada that has not been absorbed into the body politic, and there is no Indian question and no Indian Department.” The major piece of legislation guiding Canadian federal relations with First Nations, the Indian Act, reinforced Scott’s declaration, promoting an imperial patriarchal system that disregarded Wendat matrifocal traditions. This policy swept across the Canadian nation-state, transcending provincial borders and informing mainstream society’s attitudes toward Indigenous peoples. Although the 1920s seemed to suggest a new wave of racist and sexist objectives, the national policies remained consistent with the historical process of colonization and imperial rule in North America. This article uses Sioui’s life story as a window into this long history, providing insight into twentieth-century Indigenous social movements such as the political activism of the 1970s, the quest for higher education in the 1980s, and the efforts to harmonize Indigenous international rights in the 1990s. Taken as a whole, Éleonore’s Sioui’s participation in these movements outlines a successful strategy to counter colonialism. Throughout her existence, Sioui witnessed the ongoing marginalization of Indigenous peoples at home and abroad, motivating her toward a lifetime dedicated to combating these policies and empowering Indigenous women like herself.
Evolution of the endomembrane systems of trypanosomatids – conservation and specialisation
Authors: Venkatesh Divya , Boehm Cordula , Barlow Lael D. , Nankissoor Nerissa N. , O'Reilly Amanda , Kelly Steven , Dacks Joel B. , Field Mark C. 
Published: April 2017

ABSTRACT
Parasite surfaces support multiple functions required for survival within their hosts, and maintenance and functionality of the surface depends on membrane trafficking. To understand the evolutionary history of trypanosomatid trafficking, where multiple lifestyles and mechanisms of host interactions are known, we examined protein families central to defining intracellular compartments and mediating transport, namely Rabs, SNAREs and RabGAPs, across all available Euglenozoa genomes. Bodonids possess a large trafficking repertoire, which is mainly retained by the Trypanosoma cruzi group, with extensive losses in other lineages, particularly African trypanosomes and phytomonads. There are no large-scale expansions or contractions from an inferred ancestor, excluding direct associations between parasitism or host range. However, we observe stepwise secondary losses within Rab and SNARE cohorts (but not RabGAPs). Major changes are associated with endosomal and late exocytic pathways, consistent with the diversity in surface proteomes between trypanosomatids and mechanisms of interaction with the host. Along with the conserved core family proteins, several lineage-specific members of the Rab (but not SNARE) family were found. Significantly, testing predictions of SNARE complex composition by proteomics confirms generalised retention of function across eukaryotes.