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Research Directions using Text Mining on the Stockholm Electronic Patient Record Corpus Maria Skeppstedt

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Presentation on theme: "Research Directions using Text Mining on the Stockholm Electronic Patient Record Corpus Maria Skeppstedt"— Presentation transcript:

1 Research Directions using Text Mining on the Stockholm Electronic Patient Record Corpus Maria Skeppstedt mariask@dsv.su.se

2 Health Records in Swedish encompassing 1 Million Patients

3 Example of a Patient Record Maria Skeppstedt, DSV Patient Record nr X: Anamnesis: The patient says… (free text) Status: The patient has… (free text) Assessment: No signs of… (free text) Gender: Woman Age: 78 ICD-10: J20.9 (Acute bronchitis)...

4 Example of text Maria Skeppstedt, DSV Current Status: Eye movement not assessable, does not open eyes. Movement normal. Babinski’s sign missing both sides. Otherwise normal.

5 Maria Skeppstedt, DSV Research Directions 1.Diagnose Code Suggestion 2.Triggers for Adverse Events 3.Finding Similar Patient Cases 4.Hypothesis Generation 5.Synthetic Health Records

6 1) Diagnose Code Suggestion

7 Maria Skeppstedt, DSV Record nr X Assessment: Cough text, text text text text sore throat.... ICD-10: J20.9 (Acute bronchitis) Record nr Y Assessment: Text text text, text cough text text, text text.... ICD-10: J18.9 (Pneumonia) Record nr Z Assessment: Cough text text, text text sore throat, text text … ICD-10: ?????? Example of Code Suggestion

8 2) Triggers for Adverse Events

9 Maria Skeppstedt, DSV Example of a Trigger Trigger 18, T18: Abrupt Cessation of Medication...so she was switched to Soma. She started to have some confusion and pains so the Soma was discontinued and her cognition cleared….

10 3) Finding Similar Patient Cases

11 Finding similar patient cases Maria Skeppstedt, DSV EPR X Disease a

12 4) Hypothesis Generation

13 Example of Hypothesis Generation Maria Skeppstedt, DSV EPR 2 Female EPR 3 Female EPR 6 Male EPR 9 Female EPR 1 Female EPR 5 Male EPR 7 Female EPR 8 Male EPR 4 Male Cluster of EPR:s where the patient has brittleness of the bones Another cluster EPR 10 Female EPR 11 Female EPR 14 Male EPR 12 Male EPR 13 Male Another cluster EPR 15 Male Hip fracture, cane, …

14 5) Synthetic Health Records

15 Synthetic Record Plan, Example No of records: 100 Age: 55-75 Time period: 20080101-20080302 ICD-10: Z853, M059, R104, Z450 Min record size: 100 words Max record size: 200 words Maria Skeppstedt, DSV Synthetic EPR 1 Anamnesis Anna has heart failures…. EPR X EPR Y EPR Z EPR R

16 Maria Skeppstedt, DSV Summary 1.Diagnose Code Suggestion 2.Triggers for Adverse Events 3.Finding Similar Patient Cases 4.Hypothesis Generation 5.Synthetic Health Records

17 Questions? Maria Skeppstedt mariask@dsv.su.se

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