Case Studies of the Use of Lifelines2 to Support Clinical Research … · 2012. 10. 30. · – NCI...
Transcript of Case Studies of the Use of Lifelines2 to Support Clinical Research … · 2012. 10. 30. · – NCI...
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Case Studies of the Use of Lifelines2 to Support Clinical Research at the National Institutes of Health
James J. Cimino and Nina M. Nguyen May Laboratory for Informatics Development
The Clinical Center of the US National Institutes of Health Bethesda, Maryland
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The US National Institutes of Health (NIH)
• 27 institutes and centers
• Main campus is north of Washington, DC
• Clinical Center is the research hospital of NIH – 240 in-patient beds – Out-patient clinics – Commercial electronic health record (EHR)
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Clinical Data at NIH
EHR
Institute System
Lab System
Personal “System”
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Clinical Data at NIH
EHR
Institute System
Lab System
Personal “System”
BTRIS
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33
CRIS, MIS
Radiology Images
Other CC Sources
33 NIAID NIAAA
NCI
NINDS
NID DK
N I N R
NHL BI
NHGRI
NICHD
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Data Domains • CRIS
– Alerts – Allergies – Anatomic Pathology – Blood Bank – Clinical Documents – Demographics – Diagnoses/Problems – Echocardiograms – Electrocardiograms – Lab Tests and Panels – Medication Administration – Medication Orders – Microbiology – Radiology Reports – Radiology Images – Vital Signs
• Other institutes – NIAID (CRIMSON): Labs, Meds) – NIAAA (Clinical Assessments) – NCI (Labmatrix, C3D) – NICHD (CTDB: Forms) – NHGRI (Labmatrix)
• MIS – Blood Bank – Demographics – Lab Tests and Panels – Microbiology – Radiology Reports – Vital Signs
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BTRIS Data Growth
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Case Studies
• BTRIS users asked about interest in visualization
• Summer student worked with researchers to identify problems of interest
• Data selected from BTRIS
• Modeled as events (“binning”)
• Heterogeneous data sets merged into single files
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Hypoparathyroidism
• Parathyroid glands produce insufficient hormone • Inadequate calcium absorption • Low serum calcium; elevated serum phosphate • Treatment may decrease renal function • Creatinine clearance drops, serum creatinine rises • Elevated calcium excretion leads to nephrocalcinosis • Data set: 86 patients; 37,347 events • Five laboratory measures (green), three radiology
results (blue), and two medications (pink) • One patient with progressive nephrocalcinosis (red)
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PROGRESSIVE NEPHROCALCINOSIS
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Prostate Cancer
• Prostate produces prostate-specific antigen (PSA) • PSA levels rise in prostate disease (infection, age-
related hypertrophy, cancer) • Velocity of change correlates with rate of growth • Data set: 30 patients; 676 events • Set 1: PSA levels increased >250% from baseline • Set 2: PSA levels decreased and remained low
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Cushing Disease
• Increased adrenal corticotropic hormone secretion from pituitary tumor
• Increased cortisol production by adrenal gland • Tumor removed by transsphenoidal adenomectomy • Data set: 103 patients; 4,355 events • Normalized to time of surgery (blue) • Elevated cortisol (24H-UFC) levels initially • All cortisol levels normalized • Other abnormal tests (cholesterol, triglycerides,
insulin, glucose) returned to normal
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Chronic Granulomatous Disease
• Inherited immune disorder • Phagocytes don’t kill certain types of bacteria and fungi • Patients suffer from chronic and recurrent infections • Amphotericin B is treatment for fungus but toxic to kidneys • Data set: 157 patients; 37,454 values • Normalization of renal function after Amphotericin B • High serum creatinine (dark blue); normal serum creatinine
(light blue)
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Discussion
• Discrete event data not easy to analyze in tabular form • Fuzzy time periods due to inconsistent collection • Temporal visualization well-suited for event data • Heterogeneous data merged through creative binning • “Sorting trick” makes ordinal events semi-quantitative • Collaborators uniformly grateful for analyses and
seeking further collaboration
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Acknowledgments
• Clinical collaborators: Dr. Betty Marciano, Dr. Karen Winer, Dr. Jenn Marte, Dr. Maya Lodish
• BTRIS team for technical support • Human-Computer Interaction Lab (HCIL) at the
University of Maryland • This research was supported in part by intramural
research funds from the NIH Clinical Center
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btris.nih.gov
http://btris.nih.gov