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2501 citation(s) found for "Ma, C Benjamin".

Re-exposure to blinatumomab after CD19-positive relapse: Experience from three trials in patients (pts) with relapsed/refractory B-precursor acute lymphoblastic leukemia (R/R ALL).
Topp, Max S. , Stelljes, Matthias , Barnette, Phillip, Heffner, Leonard T., Trippett, Tanya, Bargou, Ralf C. , Holland, Chris, Litzow, Mark R. , Zugmaier, Gerhard , Benjamin, Jonathan

Journal of Clinical Oncology | April 19, 2019 | Volume: 33 | Issue: 15_suppl | Pages: 7051-7051

10.1200/jco.2015.33.15_suppl.7051 Get It

ClearCell FX Microfluidic System for the Enrichment and Genetic Analysis of Circulating Tumor Cells.
Punia, Sohan, Bi, Lintao , Jang, Jin Sung , Campion, Michael B., Voss, Jesse S. , Kipp, Benjamin R. , Grothey, Axel, Boardman, Lisa A., Wigle, Dennis A. , Halling, Kevin C. , Liu, Minetta C. , Jen, Jin , Turker, Mehmet Akif, Boardman, Lisa A.

Journal of Clinical Oncology | April 19, 2019 | Volume: 33 | Issue: 15_suppl | Pages: e22023-e22023

10.1200/jco.2015.33.15_suppl.e22023 Get It

Communication of Recommendations for the Disposal of Unused Prescription Opioid Medications by Stakeholders in the News Media
Petrik, Megan , McNamara, Patrick J. , Moeschler, Susan M. , Blair, Benjamin

Pain Medicine | April 12, 2019 | Volume: 20 | Issue: 9 | Pages: 1711-1716

10.1093/pm/pnz104 | PMID 31127840 Get It

Abstract Objective The opioid epidemic is a national public health emergency that requires a comprehensive approach to reduce opioid-related deaths. Proper and timely disposal of unused prescription opioids is one method to deter improper use of these medications and prevent overdose. The objective of this study was to understand how recommendations for disposing of unused prescription opioids, including both take-back programs and toilet disposal, are communicated to the public. Methods Two hundred sixty-three US newspaper articles published between January 1, 2014, and June 30, 2017, containing information on opioids and take-back programs were found using LexisNexis. Using content analysis, articles were coded for the presentation of and recommendation for opioid disposal practices, beliefs about environmental harm from toilet disposal, and additional strategies to reduce opioid supply. The entity responsible for the statement was also captured. Results Take-back programs were presented as a recommended disposal strategy for unused prescription opioids in 88.6% of coded articles. Toilet disposal was presented as a recommended disposal strategy for unused prescription opioids in 3.4% of articles and as harmful to the environment in 16.0% of articles. Individuals from health care, government, and law enforcement were primarily involved in discussing opioid disposal practices. Conclusions Although toilet disposal is recommended by the US Food and Drug Administration (FDA) for disposal of unused prescription opioids when a take-back program is not readily available, it was infrequently presented or recommended in news media articles. These results highlight the importance of improving communication of FDA guidelines for opioid disposal in the media, particularly by health care providers, government employees, and law enforcement officials.
2018 International Consensus Meeting on Musculoskeletal Infection: Research Priorities from the General Assembly Questions
Schwarz, Edward M. , Gehrke, Thorsten , Aiyer, Amiethab A. , Battenberg, Andrew K. , Brown, Scot , Callaghan, John J. , Egol, Kenneth A. , Garrigues, Grant E. , Ghert, Michelle , Goswami, Karan , Hammound, Sommer, McLaren, A. C. , Mont, Michael A. , Namdari, Surena , Obremskey, William T. , O’Toole, Robert V. , Raikin, Steven M. , Restrepo, Camilo , Ricciardi, Benjamin F. , Saeed, Kordo , Shohat, Noam , Tan, Timothy L. , Thirukumaran, Caroline P. , Winters, Brian S., Sanchez-Sotelo, Joaquin, Schwarz, Edward M , Parvizi, Javad , Gehrke, Thorsten A. , Çıtak, Mustafa , Green, Andrew , Kates, Stephen L. , Sánchez‐Sotelo, Joaquín

Journal of Orthopaedic Research | April 12, 2019 | Volume: 37 | Issue: 5 | Pages: 997-1006

10.1002/jor.24293 | PMID 30977537 Get It

ABSTRACT Musculoskeletal infections (MSKI) remain the bane of orthopedic surgery, and result in grievous illness and inordinate costs that threaten healthcare systems. As prevention, diagnosis, and treatment has remained largely unchanged over the last 50 years, a 2nd International Consensus Meeting on Musculoskeletal Infection (ICM 2018, https://icmphilly.com ) was completed. Questions pertaining to all areas of MSKI were extensively researched to prepare recommendations, which were discussed and voted on by the delegates using the Delphi methodology. The questions, including the General Assembly (GA) results, have been published ( GA questions ). However, as critical outcomes include: (i) incidence and cost data that substantiate the problems, and (ii) establishment of research priorities; an ICM 2018 research workgroup (RW) was assembled to accomplish these tasks. Here, we present the result of the RW consensus on the current and projected incidence of infection, and the costs per patient, for all orthopedic subspecialties, which range from 0.1% to 30%, and $17,000 to $150,000. The RW also identified the most important research questions. The Delphi methodology was utilized to initially derive four objective criteria to define a subset of the 164 GA questions that are high priority for future research. Thirty‐eight questions (23% of all GA questions) achieved the requisite > 70% agreement vote, and are highlighted in this Consensus article within six thematic categories: acute versus chronic infection, host immunity, antibiotics, diagnosis, research caveats, and modifiable factors. Finally, the RW emphasizes that without appropriate funding to address these high priority research questions, a 3rd ICM on MSKI to address similar issues at greater cost is inevitable.
Bilateral Hip Arthroscopy: Can Results From Initial Arthroscopy for Femoroacetabular Impingement Predict Future Contralateral Results?
Hassebrock, Jeffrey D. , Krych, Aaron J. , Domb, Benjamin G. , Levy, Bruce A. , Neville, Matthew R., Hartigan, David E. , Krych, Aaron J , Hassebrock, Jeffrey D

Arthroscopy | April 9, 2019 | Volume: 35 | Issue: 6 | Pages: 1837-1844

10.1016/j.arthro.2018.12.033 | PMID 30979623 Get It

Purpose To determine the degree of correlation of radiographic measurements, degree of correlation of intraoperative pathology, and difference in outcomes between sides of patients requiring staged bilateral hip arthroscopy. Methods Two high‐volume hip preservation centers retrospectively reviewed hip preservation databases for staged bilateral hip arthroscopies conducted between 2008 and 2015. Patients were separated into those who presented with bilateral hip pain and those that presented with unilateral pain and developed contralateral pain >2 years later. Patients were analyzed for radiographic correlation (alpha angle, lateral center edge angle, anterior center edge angle, magnetic resonance imaging alpha angle, Tönnis grade) and correlation of intraoperative pathology (acetabular labrum articular disruption grade, Outerbridge grade/location, Villar class ligamentum teres tears, labral tear location, symmetry of Seldes tear types, and the differences between operative procedures). Patient‐reported outcomes were analyzed (modified Harris Hip Score, Non‐Arthritic Hip Score, International Hip Outcome Tool‐12, hip outcome score‐sport specific subscale, visual analog scale, patient satisfaction). Correlative tests included Pearson and Spearman; univariate and multivariate analysis for differences included χ‐square test and Student t tests for ordinal and continuous variables respectively. Results A total of 133 of 2,705 patients (4.6%) underwent bilateral hip arthroscopy. Radiographic alpha angle, magnetic resonance imaging alpha angle, lateral center edge angle, and anterior center edge angle demonstrated strong correlation (Pearson's coefficients 0.651, 0.648, 0.644, 0.667, respectively, P < .0001). Tönnis grade was weakly correlated (Pearson's coefficient 0.286, P = .001). Intraoperative pathology was moderately correlated (Pearson's coefficients for acetabular Outerbridge location, 0.300, P = .0170; acetabular labrum articular disruption, 0.490, P < .0001; acetabular Outerbridge; 0.530; P < .0001; femoral head Outerbridge, 0.459, P < .0001; Villar class, 0.393, P < .0001; and labral tear location, 0.468, P < .0001). Labral tear Seldes type was compared with Bowker's symmetry test and there was no significant difference between sides. There were no significant differences in surgical interventions performed between sides. Patients with bilateral hip arthroscopies significantly improved in all measured patient‐reported outcomes and had a high patient satisfaction after both procedures. Final patient‐reported outcomes and change in patient‐reported outcomes were not different between procedures; follow up ranged from 3 months to 8 years. Conclusions This study demonstrated an incidence of 4.6% of patients who require bilateral hip arthroscopy. These patients can expect significant improvement after surgical intervention. Patients that had 1 side done gained similar improvement when the contralateral side was performed. Preoperative radiographic, intraoperative pathology, and procedures performed were similar between hips. Level of Evidence Level III, retrospective cohort study.
176 Hydrocelectomy Using a Minimally-invasive, Office-Based Approach
Ziegelmann, M., Alom, Manaf, Köhler, Thomas, Trost, Leonid Benjamin, Miller, Andrew S. , Kohler, T.

The Journal of Sexual Medicine | March 29, 2019 | Volume: 16 | Issue: Supplement_1 | Pages: S88-S88

10.1016/j.jsxm.2019.01.185 Get It

Hyperkalemia Is Associated With Increased Mortality Among Unselected Cardiac Intensive Care Unit Patients
Brueske, Benjamin, Sidhu, Mandeep S. , Schulman‐Marcus, Joshua , Barsness, Gregory W. , Kashani, Kianoush , Jentzer, Jacob C.

Journal of the American Heart Association | March 29, 2019 | Volume: 8 | Issue: 7 | Pages: No page available

10.1161/jaha.118.011814 | PMID 30922150 Get It

Background Hyperkalemia has been associated with increased mortality in patients with myocardial infarction, but few data exist regarding hyperkalemia in cardiac intensive care unit ( CICU ) patients. We hypothesize that hyperkalemia is associated with increased mortality in unselected CICU patients. Methods and Results We retrospectively reviewed a historical cohort of 9681 CICU patients admitted from January 2007 to December 2015. Hyperkalemia was defined as admission potassium ≥5.0 mEq/L and hypokalemia as admission potassium <3.5 mEq/L. Multivariate logistic regression was used to determine predictors of in‐hospital mortality. Postdischarge survival was assessed using Kaplan–Meier analysis and Cox proportional hazards models. The mean age of included patients was 67±15 years, with 36% females, and in‐hospital mortality was 9%. Hyperkalemia occurred in 1187 (12.3%) and hypokalemia occurred in 719 (7.4%) patients. Both patients with hyperkalemia (unadjusted odds ratio, 2.85; 95% CI, 2.40–3.39; P <0.001) and patients with hypokalemia (unadjusted odds ratio, 2.31; 95% CI, 1.85–2.88; P <0.001) were at increased risk of unadjusted in‐hospital mortality. After adjustment for illness severity and renal function, only patients with hyperkalemia demonstrated increased risk of in‐hospital death (adjusted odds ratio, 1.44; 95% CI, 1.11–1.87; P =0.006). Among hospital survivors, only patients with hyperkalemia had lower postdischarge survival by Kaplan–Meier analysis ( P <0.001). After adjustment for illness severity and renal function, hospital survivors with admission hyperkalemia remained at increased risk for postdischarge mortality (adjusted hazard ratio, 1.20; 95% CI, 1.08–1.34; P <0.001). Conclusions Hyperkalemia on CICU admission is associated with higher in‐hospital and postdischarge mortality, independent of renal function and illness severity. These findings emphasize the importance of potassium abnormalities as a risk predictor in patients admitted to the CICU .
Clinicopathological, immunophenotypic and genetic studies of mediastinal paragangliomas†
Hsu, Ying-Han R, Torres‐Mora, Jorge , Kipp, Benjamin R. , Sukov, William R. , Jenkins, Sarah M. , Voss, Jesse S. , Cassivi, Stephen D. , Roden, Anja C. , Barr Fritcher, Emily G, Hsu, Ying-Han R. , Fritcher, Emily G. Barr , Schaff, Hartzell V.

European Journal of Cardio-Thoracic Surgery | March 21, 2019 | Volume: 56 | Issue: 5 | Pages: 867-875

10.1093/ejcts/ezz115 | PMID 31329844 Get It

Abstract OBJECTIVES Paragangliomas have unique features in the mediastinum, in part due to their location. Because of their paucity, they have not been thoroughly investigated. We studied the clinical, pathological, immunohistochemical and molecular features of mediastinal paragangliomas. METHODS Immunohistochemistry, next-generation sequencing mutation panel and the Oncoscan assay were performed. RESULTS Twenty-four patients with mediastinal paraganglioma (7 men, 29.2%) had a median age of 45.5 years (19.8–72.2). Twenty-one (87.5%) paragangliomas were completely resected. Six (of 24, 25.0%) tumours were considered metastatic. Mitotic activity occurred in 11 (of 24, 45.8%) paragangliomas. Programmed death-ligand 1 (PD-L1) (n = 23) was expressed in 6 (26%) patients in 10% (n = 2) and 1% (n = 4) of tumour cells, respectively. SDHB expression was lost in 19 (of 22, 86.4%) cases. ATRX expression was lost in 11 (of 23, 47.8%) cases. Next-generation sequencing revealed a single pathogenic mutation in 10 (of 19) specimens including SDHB (n = 4), SDHD (n = 6), SDHC (n = 1), ATRX (n = 1), and ≥2 mutations in 2 cases [SDHC and TERT (n = 1); SDHB, ATRX and TP53 (n = 1)]. Germline mutation analysis revealed the same succinate dehydrogenase mutation (or lack thereof) as identified in the paraganglioma in 11 (of 12) cases. During a median follow-up (n = 21) of 4.8 years (0.8–14.9), 3 patients developed metastases; 4 patients died, at least 1 of disease. CONCLUSIONS Mediastinal paragangliomas can be associated with morbidity and mortality. Many mediastinal paragangliomas have been reported to be associated with syndromes such as multiple endocrine neoplasia, von Hippel-Lindau or succinate dehydrogenase syndrome with mutation profiles dominated by alterations in genes associated with these syndromes.
Preferential Disruption of Auditory Word Representations in Primary Progressive Aphasia With the Neuropathology of FTLD-TDP Type A
Mesulam, Marek-Marsel, Nelson, Matthew J. , Hyun, JungMoon , Rader, Benjamin , Hurley, Robert S. , Rademakers, Rosa , Bigio, Eileen H. , Weıntraub, Sandra , Baker, Matthew C, Mesulam, Marek-Marsel, Baker, Matthew

Cognitive and Behavioral Neurology | March 21, 2019 | Volume: 32 | Issue: 1 | Pages: 46-53

10.1097/wnn.0000000000000180 | PMID 30896577 Get It

Four patients with primary progressive aphasia displayed a greater deficit in understanding words they heard than words they read, and a further deficiency in naming objects orally rather than in writing. All four had frontotemporal lobar degeneration-transactive response DNA binding protein Type A neuropathology, three determined postmortem and one surmised on the basis of granulin gene (GRN) mutation. These features of language impairment are not characteristic of any currently recognized primary progressive aphasia variant. They can be operationalized as manifestations of dysfunction centered on a putative auditory word-form area located in the superior temporal gyrus of the left hemisphere. The small size of our sample makes the conclusions related to underlying pathology and auditory word-form area dysfunction tentative. Nonetheless, a deeper assessment of such patients may clarify the nature of pathways that link modality-specific word-form information to the associations that mediate their recognition as concepts. From a practical point of view, the identification of these features in patients with primary progressive aphasia should help in the design of therapeutic interventions where written communication modalities are promoted to circumvent some of the oral communication deficits.