1.Clinical Experience of Complete Neurologic Recovery from Severe Hypoxic Ischemic Encephalopathy after Cardiac Arrest.
Kyu Nam PARK ; Se Min CHOI ; Woon Jung LEE ; Ju Rang HAN ; Seung Hyun PARK ; Se Kyung KIM
Journal of the Korean Society of Emergency Medicine 1999;10(1):133-139
Prediction of individual outcome after cardiopulmonary resuscitation is of major medical, ethical, and socioeconomic interest but uncertain. We experienced the case thats the patient got complete neurologic recovery after the 123th day firm cardiac arrest, who had been suspected to go with poor prognosis because she got the findings of Glasgow Coma Scale 4, severe diffuse encephalopathy on encephalogram and generalized tonic-clonic seizure at the 4th day. Recently, a 29 year-old women who sustained from respiratory arrest induced presumably by sedative and anticonvulsant therapy for control of seizure that happened during local lidocaine anesthesia far mamoplasty was transfered to our emergency medical center from local private plastic office. Arrest time was about 20 minutes. On hospital arrival, she had a pulseless bradyasystole and no respiration, but spontaneous circulation was restored at 10 minutes artier CPR started. We started cerebral oriented resuscitation including mild hypothermia(34degrees C), hemodilution, calcium channel blocker infusion. On hospital day 4, patient's glasgow coma scale(GCS) was 4. On hospital clay 7, Brain Magnetic Resonance Imaging(MRI) showed high signal intensity on T2WI, involving the bilateral basal ganglia. After contrast administraton, marked enhancement can be seen at the lesion site. Patient's glasgow coma scale(GCS) increased step by step to 5 on 8th day, 7 on 14th day, 10 on 15th day, 13 on 17th day, 15 on 20th day. 40 days later the patient was discharged with minor neurologic abnormality including hand tremor, dysphonia, amenorrhea and Mini Mental State Examination(MMSE) score(26). Long-term Follow up revealed that all neurologic functional abnormality inducting hand tremor, dysphonia, amenorrhea and MMSE score(26) is completely recovered on 123th day after episode of cardiopulmonary arrest.
Adult
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Amenorrhea
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Anesthesia
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Basal Ganglia
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Brain
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Calcium Channels
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Cardiopulmonary Resuscitation
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Coma
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Dysphonia
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Emergencies
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Female
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Follow-Up Studies
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Glasgow Coma Scale
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Hand
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Heart Arrest*
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Hemodilution
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Humans
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Hypoxia-Ischemia, Brain*
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Lidocaine
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Plastics
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Prognosis
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Respiration
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Resuscitation
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Seizures
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Tremor
2.GraPT: Genomic InteRpreter about Predictive Toxicology.
Jung Hoon WOO ; Yu Rang PARK ; Yong JUNG ; Ji Hun KIM ; Ju Han KIM
Genomics & Informatics 2006;4(3):129-132
Toxicogenomics has recently emerged in the field of toxicology and the DNA microarray technique has become common strategy for predictive toxicology which studies molecular mechanism caused by exposure of chemical or environmental stress. Although microarray experiment offers extensive genomic information to the researchers, yet high dimensional characteristic of the data often makes it hard to extract meaningful result. Therefore we developed toxicant enrichment analysis similar to the common enrichment approach. We also developed web-based system graPT to enable considerable prediction of toxic endpoints of experimental chemical.
Oligonucleotide Array Sequence Analysis
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Toxicogenetics
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Toxicology*
3.Development of a Web-based Paper Submission and Review System of a "Journal of Korean Neuropsychiatric Association".
Ju Han KIM ; Kyung Ryue CHA ; Yu Rang PARK ; Byoung Hoon OH
Journal of Korean Neuropsychiatric Association 2004;43(3):265-271
The electronically archived online journals may connected together and eventually evolved to the global health information server in the near future. This paper describes an online paper submission and peer-review system for the publication of a biomedical journal. The authors conducted a systematic workflow analysis for the submission and review process of a biomedical journal and developed a web-based publication system. New media will require new format. Therefore, we have to make continuous effort to improve the format best fitted for the new media and to improve our ability to adapt ourselves to the continuously changing age of information.
Peer Review
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Publications
4.Development of Microarray Gene Expression Database for MicroArray Gene Expression Markup Language.
Ji Yeon PARK ; Se Young KIM ; Yu Rang PARK ; Hwa Jeong SEO ; Ju Han KIM
Journal of Korean Society of Medical Informatics 2004;10(3):347-353
OBJECTIVE: Gene expression microarrays become a widely used tool in biomedicine. With growing needs of microarray data sharing, there are efforts for the development of microarray standards. MAGE-OM(Microarray Gene Expression Object Model) is a data exchange model and MAGE-ML is an XML-based data exchange format. Most database, however, do not have a suitable structure for MAGE-ML storage and maximum use of the data. Therefore, we have created relational database implementing MAGE-OM for the storage of MAGE-ML with importing and exporting capabilities. METHODS: A relational schema is derived from MAGE-OM with simple object-relational mapping strategy to reduce complexity of MAGE-OM. Data transfer between database and MAGE-ML document is performed via MAGE-OM using the MAGE Software Toolkit(MAGEstk). RESULTS: Our database accepts microarray data as MAGE-ML files through web-based interface, classifying into two types of submission, array or experiment. MAGE-ML import-export function is flexible to accommodate changing data model by separating model definition and implementation layers. CONCLUSION: Standard-based implementation of gene expression database enhances the collection and the structured storage of large-scale gene expression data from heterogeneous data sources.
Information Storage and Retrieval
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Gene Expression*
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Information Dissemination
5.Presentation of Structural Constraints for Discharge Note According to Clinical Document Architecture Standard.
Hwa Jeong SEO ; Seung Kwon HONG ; Ji Yeon PARK ; Jung Ae LEE ; Yu Rang PARK ; Ju Han KIM
Journal of Korean Society of Medical Informatics 2005;11(2):189-198
OBJECTIVE: HL7(Health Level 7) develops standards for the representation of clinical documents like discharge and consultation notes. The goal of the present study is to develop XML(eXtensible Markup Language)-based communication standard for discharge note. METHODS: This paper presents the use of XML for electronic communication in a document-based EMR, first, as a format for the exchange of structured message, and second, as a comprehensible way to represent patient document. A retrospective analysis of 1165 discharge notes, from the department Seoul National University Hospital, were extracted by querying OCS(Order Communication System) and taking every discharge note of main disease issued over one year period (2003.01.01~2003.12.31). RESULTS: An XML-based prototype for discharge note has been put into place representing the required "section" and "specific instance". In addition, a subset of the CDA(Clinical Document Architecture) Level One details has been described and integrated. CONCLUSION: Through the introduction of definitions for sections and specific instances, progress in the development of CDA Level Two and Three might be realized. An XML-based prototype was implemented, allowing a special view on XML data to generate this document type.
Electronic Health Records
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Health Level Seven
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Humans
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Retrospective Studies
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Seoul
6.Xperanto: A Web-Based Integrated System for DNA Microarray Data Management and Analysis.
Ji Yeon PARK ; Yu Rang PARK ; Chan Hee PARK ; Ji Hoon KIM ; Ju Han KIM
Genomics & Informatics 2005;3(1):39-42
DNA microarray is a high-throughput biomedical technology that monitors gene expression for thousands of genes in parallel. The abundance and complexity of the gene expression data have given rise to a requirement for their systematic management and analysis to support many laboratories performing microarray research. On these demands, we developed Xperanto for integrated data management and analysis using user-friendly web-based interface. Xperanto provides an integrated environment for management and analysis by linking the computational tools and rich sources of biological annotation. With the growing needs of data sharing, it is designed to be compliant to MGED (Microarray Gene Expression Data) standards for microarray data annotation and exchange. Xperanto enables a fast and efficient management of vast amounts of data, and serves as a communication channel among multiple researchers within an emerging interdisciplinary field.
Biomedical Technology
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DNA*
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Gene Expression
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Information Dissemination
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Oligonucleotide Array Sequence Analysis*
7.Clinical Data Element Ontology for Unified Indexing and Retrieval of Data Elements across Multiple Metadata Registries.
Senator JEONG ; Hye Hyeon KIM ; Yu Rang PARK ; Ju Han KIM
Healthcare Informatics Research 2014;20(4):295-303
OBJECTIVES: Classification of data elements (DEs), which is used in clinical documents is challenging, even in across ISO/IEC 11179 compliant clinical metadata registries (MDRs) due to no existence of reliable standard for identifying DEs. We suggest the Clinical Data Element Ontology (CDEO) for unified indexing and retrieval of DEs across MDRs. METHODS: The CDEO was developed through harmonization of existing clinical document models and empirical analysis of MDRs. For specific classification as using data element concept (DEC), The Simple Knowledge Organization System was chosen to represent and organize the DECs. Six basic requirements also were set that the CDEO must meet, including indexing target to be a DEC, organizing DECs using their semantic relationships. For evaluation of the CDEO, three indexers mapped 400 DECs to more than 1 CDEO term in order to determine whether the CDEO produces a consistent index to a given DEC. The level of agreement among the indexers was determined by calculating the intraclass correlation coefficient (ICC). RESULTS: We developed CDEO with 578 concepts. Through two application use-case scenarios, usability of the CDEO is evaluated and it fully met all of the considered requirements. The ICC among the three indexers was estimated to be 0.59 (95% confidence interval, 0.52-0.66). CONCLUSIONS: The CDEO organizes DECs originating from different MDRs into a single unified conceptual structure. It enables highly selective search and retrieval of relevant DEs from multiple MDRs for clinical documentation and clinical research data aggregation.
Abstracting and Indexing as Topic*
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Classification
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Data Collection
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Information Dissemination
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Information Storage and Retrieval
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Registries*
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Semantics
8.Database Design for Microarray Data Exchange Model MAGE-OM (Micro array Gene Expression-Object Model).
Ji Yeon PARK ; Yu Rang PARK ; Seog PARK ; Ju Han KIM
Journal of Korean Society of Medical Informatics 2003;9(3):227-234
With growing needs of microarray data sharing, there are efforts for the development of microarray standards. The standard data exchange model, MAGE-OM (Microarray Gene Expression Object Model) is an object-oriented conceptual model for microarray expression data. MAGE-OM database system is applicable for storage of the associated XML data exchange format MAGE-ML (Microarray Gene Expression Markup Language) and for higher level analysis and integration with biomedical resources. We have implemented MAGE-OM in both frame-based ontology and relational database to exploit the great modeling power of MAGE-OM and compared them in terms of consistency, efficiency and flexibility to the data model. Two implementations showed considerable difference in representing relationships among classes. The ontology in the frame-based system nearly matched the object-oriented model, but performance may become problematic as the database grows. The relational database schema was preferable for performance but it is difficult to guarantee the consistency to the conceptual object level. Our relational schema is also shown to be simplified and provide improved efficiency in comparison with recently published database Array Express at the European Bioinformatics Institute. These design approaches would be helpful to understand the suitability and limitations of each implementation in the context of building standard-compliant database for microarray.
Computational Biology
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Gene Expression
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Information Dissemination
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Pliability
9.DialysisNet: Application for Integrating and Management Data Sources of Hemodialysis Information by Continuity of Care Record.
Ho Suk KU ; Sungho KIM ; Hyehyeon KIM ; Hee Joon CHUNG ; Yu Rang PARK ; Ju Han KIM
Healthcare Informatics Research 2014;20(2):145-151
OBJECTIVES: Health Avatar Beans was for the management of chronic kidney disease and end-stage renal disease (ESRD). This article is about the DialysisNet system in Health Avatar Beans for the seamless management of ESRD based on the personal health record. METHODS: For hemodialysis data modeling, we identified common data elements for hemodialysis information (CDEHI). We used ASTM continuity of care record (CCR) and ISO/IEC 11179 for the compliance method with a standard model for the CDEHI. According to the contents of the ASTM CCR, we mapped the CDHEI to the contents and created the metadata from that. It was transformed and parsed into the database and verified according to the ASTM CCR/XML schema definition (XSD). DialysisNet was created as an iPad application. The contents of the CDEHI were categorized for effective management. For the evaluation of information transfer, we used CarePlatform, which was developed for data access. The metadata of CDEHI in DialysisNet was exchanged by the CarePlatform with semantic interoperability. RESULTS: The CDEHI was separated into a content list for individual patient data, a contents list for hemodialysis center data, consultation and transfer form, and clinical decision support data. After matching to the CCR, the CDEHI was transformed to metadata, and it was transformed to XML and proven according to the ASTM CCR/XSD. DialysisNet has specific consideration of visualization, graphics, images, statistics, and database. CONCLUSIONS: We created the DialysisNet application, which can integrate and manage data sources for hemodialysis information based on CCR standards.
Chronic Disease
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Compliance
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Continuity of Patient Care*
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Fabaceae
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Health Information Management
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Health Records, Personal
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Humans
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Information Storage and Retrieval*
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Kidney Failure, Chronic
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Renal Dialysis*
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Renal Insufficiency, Chronic
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Semantics
10.CCR+: Metadata Based Extended Personal Health Record Data Model Interoperable with the ASTM CCR Standard.
Yu Rang PARK ; Young Jo YOON ; Tae Hun JANG ; Hwa Jeong SEO ; Ju Han KIM
Healthcare Informatics Research 2014;20(1):39-44
OBJECTIVES: Extension of the standard model while retaining compliance with it is a challenging issue because there is currently no method for semantically or syntactically verifying an extended data model. A metadata-based extended model, named CCR+, was designed and implemented to achieve interoperability between standard and extended models. METHODS: Furthermore, a multilayered validation method was devised to validate the standard and extended models. The American Society for Testing and Materials (ASTM) Community Care Record (CCR) standard was selected to evaluate the CCR+ model; two CCR and one CCR+ XML files were evaluated. RESULTS: In total, 188 metadata were extracted from the ASTM CCR standard; these metadata are semantically interconnected and registered in the metadata registry. An extended-data-model-specific validation file was generated from these metadata. This file can be used in a smartphone application (Health Avatar CCR+) as a part of a multilayered validation. The new CCR+ model was successfully evaluated via a patient-centric exchange scenario involving multiple hospitals, with the results supporting both syntactic and semantic interoperability between the standard CCR and extended, CCR+, model. CONCLUSIONS: A feasible method for delivering an extended model that complies with the standard model is presented herein. There is a great need to extend static standard models such as the ASTM CCR in various domains: the methods presented here represent an important reference for achieving interoperability between standard and extended models.
Compliance
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Health Records, Personal*
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Humans
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Methods
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Semantics