PS1-24: The Positive Predictive Value of a Hyperkalemia Diagnosis in Automated Health Care Data
| Autor: | Craig Cheetham, Colleen Ross, Gwyn Saylor, Michael L. Smith, Stanley Xu, Christopher M. Blanchette, Marsha A. Raebel, Leslie Wright |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Community and Home Care
medicine.medical_specialty Hyperkalemia SELECTED ABSTRACTS - HMORN 2010: Health and Bioinformatics business.industry Medical record nutritional and metabolic diseases Liter Retrospective cohort study General Medicine Emergency department medicine.disease urologic and male genital diseases female genital diseases and pregnancy complications chemistry.chemical_compound chemistry Diabetes mellitus Internal medicine medicine Spironolactone Medical diagnosis medicine.symptom Intensive care medicine business |
| Popis: | Purpose—Our objectives were to determine performance of coded hyperkalemia diagnosis at identifying 1) clinically-evident hyperkalemia and 2) serum potassium ≥ 6 mmol/liter. Methods—This retrospective observational study included 8,722 patients with diabetes within an integrated healthcare system who newly-initiated an angiotensin converting enzyme inhibitor, angiotensin receptor blocker, or spironolactone. The primary outcome was first hyperkalemiaassociated event (hospitalization, emergency department visit or death within 24 hours of coded diagnosis and/or potassium ≥ 6 mmol/liter) during the first year of therapy. Medical records were reviewed. Results—Among a random sample of 99 patients not coded as having hyperkalemia, none had hyperkalemia upon record review. Among all 64 patients identified as having hyperkalemia, all had hospitalization or emergency department visit associated with coded diagnosis or elevated potassium. Of 55 with coded diagnosis, 42 (PPV 76%) had clinically-evident hyperkalemia; 32 (PPV 58%) had potassium ≥ 6. Of 9 identified using only potassium ≥ 6, 7 (PPV 78%) had clinically-evident hyperkalemia. Conclusions—Nearly one-fourth of patients with coded diagnosis do not have clinically-evident hyperkalemia and nearly one-half do not have potassium ≥ 6. Because both false positives and negatives occur with coded diagnoses, medical record validation of hyperkalemia-associated outcomes is necessary. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|