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2716 citation(s) found for "Ma, Michelle".

Impact of weight bias and stigma on quality of care and outcomes for patients with obesity
Yeazel, Mark W. , Hellerstedt, Wendy L., Ryn, Michelle van , Phelan, Sean M. , Burgess, Darren J. , Griffin, Joan M. , van Ryn, Michelle

Obesity Reviews | March 5, 2015 | Volume: 16 | Issue: 4 | Pages: 319-326

10.1111/obr.12266 | PMID 25752756 Get It

Summary The objective of this study was to critically review the empirical evidence from all relevant disciplines regarding obesity stigma in order to (i) determine the implications of obesity stigma for healthcare providers and their patients with obesity and (ii) identify strategies to improve care for patients with obesity. We conducted a search of M edline and PsychInfo for all peer‐reviewed papers presenting original empirical data relevant to stigma, bias, discrimination, prejudice and medical care. We then performed a narrative review of the existing empirical evidence regarding the impact of obesity stigma and weight bias for healthcare quality and outcomes. Many healthcare providers hold strong negative attitudes and stereotypes about people with obesity. There is considerable evidence that such attitudes influence person‐perceptions, judgment, interpersonal behaviour and decision‐making. These attitudes may impact the care they provide. Experiences of or expectations for poor treatment may cause stress and avoidance of care, mistrust of doctors and poor adherence among patients with obesity. Stigma can reduce the quality of care for patients with obesity despite the best intentions of healthcare providers to provide high‐quality care. There are several potential intervention strategies that may reduce the impact of obesity stigma on quality of care.
The Impact of Obesity on Perioperative Resource Utilization after Elective Spine Surgery for Degenerative Disease
Planchard, Ryan , Higgins, Dominique , Mallory, Grant W., Puffer, Ross C. , Jacob, Jeffrey T. , Kor, Daryl J. , Planchard, Ryan F, Higgins, Dominique M, Curry, Timothy B. , Clarke, Michelle J.

Global Spine Journal | March 4, 2015 | Volume: 5 | Issue: 4 | Pages: 287-293

10.1055/s-0035-1546819 | PMID 26225277 Get It

Study Design Retrospective case series. Objective To determine the effect of obesity on the resource utilization and cost in 3270 consecutive patients undergoing elective noninstrumented decompressive surgeries for degenerative spine disease at Mayo Clinic Rochester between 2005 and 2012. Methods Groups were assessed for baseline differences (age, gender, and American Society of Anesthesiologists [ASA] classification, procedure type, and number of operative levels). Outcome variables included the transfusion requirements during surgery, the total anesthesia and surgical times, intensive care unit (ICU) admissions, standardized costs, as well as the ICU and hospital length of stay (LOS). Regression analysis was used to evaluate for strength of association between obesity and outcome variables. Results Baseline differences between the groups (nonobese: n = 1,853; obese: n = 1,417) were found with respect to age, ASA class, gender, procedure type, and number of operative levels. After correcting for differences, we found significant associations between obesity and surgical ( p < 0.0001) and anesthesia times ( p < 0.0001) and hospital LOS ( p < 0.0001). Additionally, ICU admission rates ( p = 0.02) and requirement for postoperative ventilation ( p = 0.048) were significantly higher in obese patients. Finally, mean difference in total cost ($1,632, p < 0.0001) was significantly higher for the obese cohort. Conclusion Obesity is associated with increased resource utilization and cost in patients undergoing a noninstrumented decompressive surgery for degenerative spine disease.
A novel mechanism by which hydrogen peroxide decreases calcium sensitivity in airway smooth muscle
Perkins, William J., Lorenz, Robert R. , Bogoger, Michelle, Cremo, Christine , Jones, Keith A. , Warner, David O.

American Journal of Physiology-Lung Cellular and Molecular Physiology | March 3, 2015 | Volume: 284 | Issue: 2 | Pages: L324-L332

10.1152/ajplung.00159.2002 | PMID 12388373 Get It

The purpose of this study was to test the hypothesis that H2O2decreases the amount of force produced by a given intracellular Ca2+concentration (i.e., the Ca2+sensitivity) in airway smooth muscle (ASM) in part by mechanisms independent of changes in regulatory myosin light chain (rMLC) phosphorylation. A new preparation was developed and validated in which canine ASM strips were first exposed to H2O2and then permeabilized with 10% Triton X-100 to assess the persistent effects of H2O2on Ca2+sensitivity. Experiments in which H2O2was administered before permeabilization revealed a novel mechanism that contributed to reduced Ca2+sensitivity independently of changes in rMLC phosphorylation, in addition to an rMLC phosphorylation-dependent mechanism. The mechanism depended on factors not available in the permeabilized ASM strip or in the buffer to which the strip was exposed, since there was no effect when H2O2was added to permeabilized strips. H2O2treatment of a maximally thiophosphorylated purified myosin subfragment (heavy meromyosin) significantly reduced actomyosin ATPase activity, suggesting one mechanism by which the phosphorylation-independent reduction in Ca2+sensitivity may occur.
Tuberculosis as a Force Health Protection Threat to the United States Military
Sánchez, José L. , Sanchez, Joyce L. , Cooper, Michael J. , Hiser, Michelle J., Mancuso, James D.

Military Medicine | February 27, 2015 | Volume: 180 | Issue: 3 | Pages: 276-284

10.7205/milmed-d-14-00433 | PMID 25735017 Get It

ABSTRACT Tuberculosis (TB) is a communicable disease that poses a threat to force health protection to the U.S. military. The rate of TB disease in the military is low; however, there are unique challenges for its control in this setting. As a low-risk population, TB testing in the U.S. military can be scaled back from the universal testing approach used previously. Reactivation of latent TB infection (LTBI) present at accession into service is the most important factor leading to TB disease; therefore, its diagnosis and treatment among recruits should be given a high priority. Deployment and overseas military service is an uncommon but important source of TB infection, and rigorous surveillance should be ensured. Case management of TB disease and LTBI can be improved by the use of cohort reviews at the service and installation levels and case finding and delays in the diagnosis of TB disease can be improved by education of providers, as well as increased use of molecular diagnostic tests. Program outcomes can be improved by making LTBI treatment compulsory, offering shorter treatment regimens, and increasing accountability through oversight and evaluation. The diagnosis of LTBI can be improved by implementing targeted testing in all settings and reducing confirmatory interferon-gamma release assay testing.
The Neoadjuvant Model Is Still the Future for Drug Development in Breast Cancer
DeMichele, Angela, Yee, Douglas , Berry, Donald A. , Albain, Kathy S. , Benz, Christopher C. , Buxton, Meredith , Chia, Stephen , Chien, A. Jo , Clark, Amy S. , Edmiston, Kirsten K., Forero‐Torres, Andres , Haddad, Tufia C. , Haley, Barbara , Haluska, Paul , Korde, Larissa A. , Leyland‐Jones, Brian , Liu, Minetta C. , Melisko, Michelle , Minton, Susan, Moulder, Stacy L. , Nanda, Rita , Olopade, Olufunmilayo I. , Paoloni, Melissa, Park, John W., Parker, Barbara A. , Perlmutter, Jane , Petricoin, Emanuel F. , Symmans, Fraser, Tripathy, Debasish , Veer, Laura J. van’t , Viscusi, Rebecca K., Symmans, W. Fraser , Boughey, Judy, Boughey, Judy C. , Hui, Jane Yuet Ching , Elias, Anthony , Hylton, Nola M. , Isaacs, Claudine , Kaplan, Henry G. , Rugo, Hope S. , Wallace, Anne M. , Wolf, Denise M. , Yau, Christina , Esserman, Laura J. , Olopade, Olufunmilayo I , Symmans, W Fraser , Yee, Douglas

Clinical Cancer Research | February 26, 2015 | Volume: 21 | Issue: 13 | Pages: 2911-2915

10.1158/1078-0432.ccr-14-1760 | PMID 25712686 Get It

AbstractThe many improvements in breast cancer therapy in recent years have so lowered rates of recurrence that it is now difficult or impossible to conduct adequately powered adjuvant clinical trials. Given the many new drugs and potential synergistic combinations, the neoadjuvant approach has been used to test benefit of drug combinations in clinical trials of primary breast cancer. A recent FDA-led meta-analysis showed that pathologic complete response (pCR) predicts disease-free survival (DFS) within patients who have specific breast cancer subtypes. This meta-analysis motivated the FDA's draft guidance for using pCR as a surrogate endpoint in accelerated drug approval. Using pCR as a registration endpoint was challenged at ASCO 2014 Annual Meeting with the presentation of ALTTO, an adjuvant trial in HER2-positive breast cancer that showed a nonsignificant reduction in DFS hazard rate for adding lapatinib, a HER-family tyrosine kinase inhibitor, to trastuzumab and chemotherapy. This conclusion seemed to be inconsistent with the results of NeoALTTO, a neoadjuvant trial that found a statistical improvement in pCR rate for the identical lapatinib-containing regimen. We address differences in the two trials that may account for discordant conclusions. However, we use the FDA meta-analysis to show that there is no discordance at all between the observed pCR difference in NeoALTTO and the observed HR in ALTTO. This underscores the importance of appropriately modeling the two endpoints when designing clinical trials. The I-SPY 2/3 neoadjuvant trials exemplify this approach. Clin Cancer Res; 21(13); 2911–5. ©2015 AACR.
The role of families in decisions regarding cancer treatments
Hobbs, Gabriela , Landrum, Mary Beth , Arora, Neeraj K. , Ganz, Patricia A. , Ryn, Michelle van , Weeks, Jane C., Mack, Jennifer W. , Keating, Nancy L. , Hobbs, Gabriela S , van Ryn, Michelle

Cancer | February 23, 2015 | Volume: 121 | Issue: 7 | Pages: 1079-1087

10.1002/cncr.29064 | PMID 25708952 Get It

BACKGROUNDShared decision‐making is an important component of patient‐centered care and is associated with improved outcomes. To the authors' knowledge, little is known concerning the extent and predictors of the involvement of a patient's family in decisions regarding cancer treatments.METHODSThe Cancer Care Outcomes Research and Surveillance (CanCORS) Consortium is a large, multiregional, prospective cohort study of the cancer care and outcomes of patients with lung and colorectal cancer. Participants reported the roles of their families in decision‐making regarding treatment. Multinomial logistic regression was used to assess patient factors associated with family roles in decisions.RESULTSAmong 5284 patients, 80 (1.5%) reported family‐controlled decisions, with the highest adjusted rates (12.8%) noted among non‐English‐speaking Asians. Among the 5204 remaining patients, 49.4% reported equally sharing decisions with family, 22.1% reported some family input, and 28.5% reported little family input. In adjusted analyses, patients who were married, female, older, and insured more often reported equally shared decisions with family (all P <.001). Adjusted family involvement varied by race/ethnicity and language, with Chinese‐speaking Asian (59.8%) and Spanish‐speaking Hispanic (54.8%) patients equally sharing decisions with family more often than white individuals (47.6%). Veterans Affairs patients were least likely to report sharing decisions with family, even after adjustment for marital status and social support (P <.001).CONCLUSIONSThe majority of patients with newly diagnosed lung or colorectal cancer involve family members in treatment decisions. Non‐English‐speaking Asians and Hispanics rely significantly on family. Further studies are needed to determine the impact of family involvement in treatment decisions on outcomes; until then, physicians should consider eliciting patients' preferences for family involvement. Cancer 2015;121:1079–1087. © 2015 American Cancer Society.
Association of Actual and Preferred Decision Roles With Patient-Reported Quality of Care
Kehl, Kenneth L. , Landrum, Mary Beth , Arora, Neeraj K. , Ganz, Patricia A. , Ryn, Michelle van , Mack, Jennifer W. , Keating, Nancy L. , van Ryn, Michelle, van Ryn, Michelle

JAMA Oncology | February 12, 2015 | Volume: 1 | Issue: 1 | Pages: 50

10.1001/jamaoncol.2014.112 | PMID 26182303 Get It