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Dive into the research topics where Robert D. Hoffman is active.

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Featured researches published by Robert D. Hoffman.


PLOS Genetics | 2013

Recurrent Tissue-Specific mtDNA Mutations Are Common in Humans

David C. Samuels; Chun Li; Bingshan Li; Zhuo Song; Eric S. Torstenson; Hayley B. Clay; Antonis Rokas; Tricia A. Thornton-Wells; Jason H. Moore; Tia M. Hughes; Robert D. Hoffman; Jonathan L. Haines; Deborah G. Murdock; Douglas P. Mortlock; Scott M. Williams

Mitochondrial DNA (mtDNA) variation can affect phenotypic variation; therefore, knowing its distribution within and among individuals is of importance to understanding many human diseases. Intra-individual mtDNA variation (heteroplasmy) has been generally assumed to be random. We used massively parallel sequencing to assess heteroplasmy across ten tissues and demonstrate that in unrelated individuals there are tissue-specific, recurrent mutations. Certain tissues, notably kidney, liver and skeletal muscle, displayed the identical recurrent mutations that were undetectable in other tissues in the same individuals. Using RFLP analyses we validated one of the tissue-specific mutations in the two sequenced individuals and replicated the patterns in two additional individuals. These recurrent mutations all occur within or in very close proximity to sites that regulate mtDNA replication, strongly implying that these variations alter the replication dynamics of the mutated mtDNA genome. These recurrent variants are all independent of each other and do not occur in the mtDNA coding regions. The most parsimonious explanation of the data is that these frequently repeated mutations experience tissue-specific positive selection, probably through replication advantage.


Academic Pathology | 2015

Assessment and Management of Professionalism Issues in Pathology Residency Training Results From Surveys and a Workshop by the Graduate Medical Education Committee of the College of American Pathologists

Michael L. Talbert; Kristen Johnson; Miriam D. Post; Mark D. Brissette; Richard Michael Conran; Robert D. Hoffman; Cindy B. McCloskey; Patricia M. Raciti; Cory A. Roberts; Amyn M. Rojiani; J. Allan Tucker; Suzanne Z. Powell

Professionalism issues are common in residency training and can be very difficult to recognize and manage. Almost one-third of the milestones for pathology recently instituted by the Accreditation Council for Graduate Medical Education encompass aspects of professionalism. Program directors are often unsure of how and when to remediate residents for unprofessional behavior. We used a case-based educational approach in a workshop setting to assist program directors in the management of unprofessional behavior in residents. Eight case scenarios highlighting various aspects of unprofessional behavior by pathology residents were developed and presented in an open workshop forum at the annual pathology program director’s meeting. Prior to the workshop, 2 surveys were conducted: (1) to collect data on program directors’ experience with identifying, assessing, and managing unprofessional behavior in their residents and (2) to get feedback from workshop registrants on how they would manage each of the 8 case scenarios. A wide range of unprofessional behaviors have been observed by pathology program directors. Although there is occasionally general agreement on how to manage specific behaviors, there remains wide variation in how to manage many of the presented unprofessional behaviors. Remediation for unprofessional behavior in pathology residents remains a difficult and challenging process. Additional education and research in this area are warranted.


Archives of Pathology & Laboratory Medicine | 2017

Perceptions of Unprofessional Attitudes and Behaviors: Implications for Faculty Role Modeling and Teaching Professionalism During Pathology Residency

Mark D. Brissette; Kristen Johnson; Patricia M. Raciti; Cindy B. McCloskey; Dita Gratzinger; Richard Michael Conran; Robert D. Hoffman; Miriam D. Post; Cory A. Roberts; Amyn M. Rojiani; Suzanne Z. Powell

CONTEXT - Changes occurring in medicine have raised issues about medical professionalism. Professionalism is included in the Core Competencies and Milestones for all pathology residents. Previous studies have looked at resident professionalism attitudes and behaviors in primary care but none have looked specifically at pathology. OBJECTIVE - To examine behavior and attitudes toward professionalism within pathology and to determine how professionalism is taught in residency programs. DESIGN - Surveys were sent to all College of American Pathologists junior members and all pathology residency program directors, and responses were compared. RESULTS - Although no single behavior received the same professionalism rating among residents and program directors, both groups identified the same behaviors as being the most unprofessional: posting identifiable patient information or case images to social media, making a disparaging comment about a physician colleague or member of the support staff on social media or in a public hospital space, and missing work without reporting the time off. Faculty were observed displaying most of these behaviors as often or more often than residents by both groups. The most common means to teach professionalism in pathology residencies is providing feedback as situations arise and teaching by example. Age differences were found within each group and between groups for observed behaviors and attitudes. CONCLUSIONS - As teaching by example was identified as a common educational method, faculty must be aware of the role their behavior and attitudes have in shaping resident behavior and attitudes. These results suggest a need for additional resources to teach professionalism during pathology residency.


Academic Pathology | 2017

Entrustable Professional Activities for Pathology: Recommendations From the College of American Pathologists Graduate Medical Education Committee

Cindy B. McCloskey; Richard Michael Conran; Robert D. Hoffman; Miriam D. Post; Mark D. Brissette; Dita Gratzinger; Patricia M. Raciti; David A. Cohen; Cory A. Roberts; Amyn M. Rojiani; Christina S. Kong; Jo Elle Peterson; Kristen Johnson; Sue Plath; Suzanne Z. Powell

Competency-based medical education has evolved over the past decades to include the Accreditation Council for Graduate Medical Education Accreditation System of resident evaluation based on the Milestones project. Entrustable professional activities represent another means to determine learner proficiency and evaluate educational outcomes in the workplace and training environment. The objective of this project was to develop entrustable professional activities for pathology graduate medical education encompassing primary anatomic and clinical pathology residency training. The Graduate Medical Education Committee of the College of American Pathologists met over the course of 2 years to identify and define entrustable professional activities for pathology graduate medical education. Nineteen entrustable professional activities were developed, including 7 for anatomic pathology, 4 for clinical pathology, and 8 that apply to both disciplines with 5 of these concerning laboratory management. The content defined for each entrustable professional activity includes the entrustable professional activity title, a description of the knowledge and skills required for competent performance, mapping to relevant Accreditation Council for Graduate Medical Education Milestone subcompetencies, and general assessment methods. Many critical activities that define the practice of pathology fit well within the entrustable professional activity model. The entrustable professional activities outlined by the Graduate Medical Education Committee are meant to provide an initial framework for the development of entrustable professional activity–related assessment and curricular tools for pathology residency training.


Archives of Pathology & Laboratory Medicine | 2017

Professionalism in Pathology: A Case-Based Approach as a Potential Educational Tool

Kristen Johnson; Richard Michael Conran; Robert D. Hoffman; Miriam D. Post; Jacob J. Steinberg; Mark D. Brissette; Dita Gratzinger; Cindy B. McCloskey; Patricia M. Raciti; Cory A. Roberts; Amyn M. Rojiani; Suzanne Z. Powell

CONTEXT -Professionalism issues in residency training can be difficult to assess and manage. Generational or role-based differences may also exist between faculty and residents as to what constitutes unprofessional behavior and how to manage it. OBJECTIVE -To examine and compare how faculty and residents would approach the same 5 case scenarios detailing various aspects of unprofessional behavior. DESIGN -Five case scenarios highlighting various unprofessional behaviors were presented in a workshop at an annual meeting of pathology department chairs, residency program directors, and undergraduate pathology medical educators (ie, pathologists involved in medical student pathology education). The same cases were presented to a cohort of pathology residents currently in training. A standard set of responses were offered to the participants, polling results were collected electronically, and results were compared. RESULTS -Faculty and residents were fairly consistent within their respective groups. In a subset of cases, faculty were more likely to favor working with the individual in the scenario, whereas resident respondents were more likely to favor either no response or a severe response. Generational or role-based differences were also potentially evident. CONCLUSIONS -Assessing expectations and differences around professionalism for both faculty and residents should be considered as part of any educational and management approach for professionalism. Although a level of generational differences appears to be evident in this study regarding the recognition and management of unprofessional behavior, there was also agreement in some cases. Further exploration into the discrepant responses between faculty and residents may prove useful in developing educational, assessment, and remediation resources.


Academic Pathology | 2018

Development of Professionalism in Graduate Medical Education: A Case-Based Educational Approach From the College of American Pathologists’ Graduate Medical Education Committee

Richard Michael Conran; Suzanne Z. Powell; Cindy B. McCloskey; Mark D. Brissette; David A. Cohen; Lisa R. Dixon; Melissa R. George; Dita Gratzinger; Miriam D. Post; Cory A. Roberts; Amyn M. Rojiani; Charles F. Timmons; Kristen Johnson; Robert D. Hoffman

Professionalism and physician well-being are important topics in academic medicine. Lapses in professional judgment may lead to disciplinary action and put patient’s health at risk. Within medical education, students and trainees are exposed to professionalism in the institution’s formal curriculum and hidden curriculum. Development of professionalism starts early in medical school. Trainees entering graduate medical education already have developed professional behavior. As a learned behavior, development of professional behavior is modifiable. In addition to role modeling by faculty, other modalities are needed. Use of case vignettes based on real-life issues encountered in trainee and faculty behavior can serve as a basis for continued development of professionalism in trainees. Based on the experience of program directors and pathology educators, case vignettes were developed in the domains of service, research, and education and subdivided into the areas of duty, integrity, and respect. General and specific questions pertaining to each case were generated to reinforce model behavior and overcome professionalism issues encountered in the hidden curriculum. To address physician burnout, cases were generated to provide trainees with the skills to deal with burnout and promote well-being.


Academic Pathology | 2018

Report and Recommendations of the Association of Pathology Chairs’ Autopsy Working Group:

Gregory G. Davis; Gayle L. Winters; Billie Fyfe; Jody E. Hooper; Julia C. Iezzoni; Rebecca L. Johnson; Priscilla S. Markwood; Wesley Y. Naritoku; Marcus Nashelsky; Sampson Ba; Jacob J. Steinberg; James R. Stubbs; Charles F. Timmons; Robert D. Hoffman

Autopsy has been a foundation of pathology training for many years, but hospital autopsy rates are notoriously low. At the 2014 meeting of the Association of Pathology Chairs, some pathologists suggested removing autopsy from the training curriculum of pathology residents to provide additional months for training in newer disciplines, such as molecular genetics and informatics. At the same time, the American Board of Pathology received complaints that newly hired pathologists recently certified in anatomic pathology are unable to perform an autopsy when called upon to do so. In response to a call to abolish autopsy from pathology training on the one hand and for more rigorous autopsy training on the other, the Association of Pathology Chairs formed the Autopsy Working Group to examine the role of autopsy in pathology residency training. After 2 years of research and deliberation, the Autopsy Working Group recommends the following: Autopsy should remain a component of anatomic pathology training. A training program must have an autopsy service director with defined responsibilities, including accountability to the program director to record every autopsy performed by every resident. Specific entrustable activities should be defined that a resident must master in order to be deemed competent in autopsy practice, as well as criteria for gaining the trust to perform the tasks without direct supervision. Technical standardization of autopsy performance and reporting must be improved. The current minimum number of 50 autopsies should not be reduced until the changes recommended above have been implemented.


Pediatric Transplantation | 2017

Sudden death in a pediatric heart transplant recipient with peripheral eosinophilia and eosinophilic myocardial infiltrates

William McEachern; Justin Godown; Debra A. Dodd; Anne I. Dipchand; Jennifer Conway; Gregory J. Wilson; Robert D. Hoffman

Eosinophilia has been rarely reported in pediatric heart transplant recipients and has been suggested to play a role in graft rejection. We report a case of a young female patient with peripheral blood eosinophilia who died suddenly 2 years following ABO‐incompatible heart transplantation. She was found at autopsy to have myocardial infiltration of not only T‐lymphocytes and macrophages expected in acute cellular rejection but also of eosinophils, B‐lymphocytes, and plasma cells indicating myocarditis.


Archives of Pathology & Laboratory Medicine | 2017

The Recent Pathology Residency Graduate Job Search Experience: A Synthesis of 5 Years of College of American Pathologists Job Market Surveys

Dita Gratzinger; Kristen Johnson; Mark D. Brissette; David A. Cohen; Amyn M. Rojiani; Richard Michael Conran; Robert D. Hoffman; Miriam D. Post; Cindy B. McCloskey; Cory A. Roberts; Michael L. Talbert; Suzanne Z. Powell

CONTEXT - Pathology residents and fellows tailor their training and job search strategies to an actively evolving specialty in the setting of scientific and technical advances and simultaneous changes in health care economics. OBJECTIVE - To assess the experience and outcome of the job search process of pathologists searching for their first non-fellowship position. DESIGN - The College of American Pathologists (CAP) Graduate Medical Education Committee has during the past 5 years sent an annual job search survey each June to CAP junior members and fellows in practice 3 years or less who have actively searched for a non-fellowship position. RESULTS - Job market indicators including job interviews, job offers, positions accepted, and job satisfaction have remained stable during the 5 years of the survey. Most survey respondents who had applied for at least 1 position had accepted a position at the time of the survey, and most applicants who had accepted a position were satisfied or very satisfied. However, most attested that finding a non-fellowship position was difficult. Despite a perceived push toward subspecialization in surgical pathology, the reported number of fellowships completed was stable. Respondent demographics were not associated with job search success with 1 significant exception: international medical school graduate respondents reported greater perceived difficulty in finding a position, and indeed, fewer reported having accepted a position. CONCLUSIONS - Pathology residents and fellows seeking their first position have faced a relatively stable job market during the last 5 years, with most accepting positions with which they were satisfied.


The New England Journal of Medicine | 2016

Fulminant myocarditis with combination immune checkpoint blockade

Douglas B. Johnson; Justin M. Balko; Margaret Compton; Spyridon Chalkias; Joshua M. Gorham; Yaomin Xu; Mellissa Hicks; Igor Puzanov; Matthew R. Alexander; Tyler Bloomer; Jason R. Becker; David Slosky; E. Phillips; Mark Pilkinton; Laura Craig-Owens; Nina Kola; Gregory Plautz; Daniel S. Reshef; Jonathan S. Deutsch; Raquel P. Deering; Benjamin A. Olenchock; Andrew H. Lichtman; Dan M. Roden; Christine E. Seidman; Igor J. Koralnik; Jonathan G. Seidman; Robert D. Hoffman; Janis M. Taube; Luis A. Diaz; Robert A. Anders

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Miriam D. Post

University of Colorado Boulder

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Suzanne Z. Powell

Houston Methodist Hospital

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Amyn M. Rojiani

Georgia Regents University

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Cory A. Roberts

University of Texas Southwestern Medical Center

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Richard Michael Conran

Eastern Virginia Medical School

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Patricia M. Raciti

Columbia University Medical Center

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David A. Cohen

Houston Methodist Hospital

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Jacob J. Steinberg

Albert Einstein College of Medicine

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