Richard D. Hammer

Dr. Richard D. Hammer

Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA
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Research Focus & Metrics

Academic Career Length

31Years (1996-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 December 2000 in Laboratory Investigation
Verified
Journal Article
Closed access
RMRoberto Nicolas Miranda
Roberto Nicolas Miranda
RBRobert C Briggs
Robert C Briggs
MKMarsha C Kinney
Marsha C Kinney
PVPat A Veno
Pat A Veno
RHRichard D. Hammer
Richard D. Hammer
JCJohn B Cousar
John B Cousar

1 March 1999 in Human Pathology
Verified
Journal Article
Closed access
PDF file
RMRoberto Nicolas Miranda
Roberto Nicolas Miranda
JCJohn B Cousar
John B Cousar
RHRichard D. Hammer
Richard D. Hammer
RCRobert D Collins
Robert D Collins
CVCindy L Vnencak-Jones
Cindy L Vnencak-Jones

22 January 2017 in Diagnostic Cytopathology
Verified
Journal Article
Closed access
PDF file
LLLester J Layfield
Lester J Layfield
MEMagda Esebua
Magda Esebua
SFShellaine R. Frazier
Shellaine R. Frazier
RHRichard D. Hammer
Richard D. Hammer
WBWilliam W. Bivin
William W. Bivin
RSRobert L. Schmidt
Robert L. Schmidt

1 November 2020 in JCO Clinical Cancer Informatics
Verified
Journal Article
Open access
RHRichard D. Hammer
Richard D. Hammer
DFDonna Fowler
Donna Fowler
LSLincoln R. Sheets
Lincoln R. Sheets
ASAthanasios Siadimas
Athanasios Siadimas
CGChaohui Guo
Chaohui Guo
MPMatthew S. Prime
Matthew S. Prime
PURPOSE: Multidisciplinary tumor boards (TBs) are the gold standard for decision-making in cancer care. Variability in preparation, conduction, and impact is widely reported. The benefit of digital technologies to support TBs is unknown. This study evaluated the impact of the NAVIFY Tumor Board solution (NTB) on TB preparation time across multiple user groups in 4 cancer categories: breast, GI, head and neck (ie, ear, nose, and throat, or ENT), and hematopathology. METHODS: This prospective study evaluated TB preparation time in multiple phases pre- and post-NTB implementation at an academic health care center. TB preparation times were recorded for multiple weeks using a digital time tracker. RESULTS: Preparation times for 59 breast, 61 GI, 36 ENT, and 71 hematopathology cancer TBs comparing a pre-NTB phase to 3 phases of NTB implementation were evaluated between February 2018 and July 2019. NTB resulted in significant reductions in overall preparation time (30%) across 3 TBs pre-NTB compared with the final post-NTB implementation phase. In the breast TB, NTB reduced overall preparation time by 28%, with a 76% decrease in standard deviation (SD). In the GI TB, a 23% reduction in average preparation time was observed for all users, with a 48% decrease in SD. In the ENT TB, a 33% reduction in average preparation time was observed for all users, with a 73% decrease in SD. The hematopathology TB, which was the cocreation partner and initial adopter of the solution, showed variable results. CONCLUSION: This study showed a significant impact of a digital solution on time preparation for TBs across multiple users and different TBs, reflecting the generalizability of the NTB. Adoption of such a solution could improve the efficiency of TBs and have a direct economic impact on hospitals.

1 January 1997 in Applied Immunohistochemistry & Molecular Morphology
Verified
Journal Article
Closed access
WSWilliam R. Shipley
William R. Shipley
RHRichard D. Hammer
Richard D. Hammer
WLWayne J. Lennington
Wayne J. Lennington
WMWilliam R. Macon
William R. Macon

22 July 2017 in Brain Sciences
Verified
Journal Article
Open access
PDF file
JHJoseph P. Herbert
Joseph P. Herbert
AGAndrew R. Guillotte
Andrew R. Guillotte
RHRichard D. Hammer
Richard D. Hammer
NLN. Scott Litofsky
N. Scott Litofsky
Mild traumatic brain injury (mTBI) is a common, although poorly-defined clinical entity. Despite its initially mild presentation, patients with mTBI can rapidly deteriorate, often due to significant expansion of intracranial hemorrhage. TBI-associated coagulopathy is the topic of significant clinical and basic science research. Unlike trauma-induced coagulopathy (TIC), TBI-associated coagulopathy does not generally follow widespread injury or global hypoperfusion, suggesting a distinct pathogenesis. Although the fundamental mechanisms of TBI-associated coagulopathy are far from clearly elucidated, several candidate molecules (tissue plasminogen activator (tPA), urokinase plasminogen activator (uPA), tissue factor (TF), and brain-derived microparticles (BDMP)) have been proposed which might explain how even minor brain injury can induce local and systemic coagulopathy. Here, we review the incidence, proposed mechanisms, and common clinical tests relevant to mTBI-associated coagulopathy and briefly summarize our own institutional experience in addition to identifying areas for further research.