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R . Scott Evans, Vrena B. Flint, Tom V. Cloward, William Beninati,

Early Detection of Hospitalized Patients with Previously Diagnosed Obstructive Sleep Apnea Using Computer Decision Support Alerts. R . Scott Evans, Vrena B. Flint, Tom V. Cloward, William Beninati, James F. Lloyd, Kimberly Megwalu, Kathy J. Simpson,

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R . Scott Evans, Vrena B. Flint, Tom V. Cloward, William Beninati,

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  1. Early Detection of Hospitalized Patients with Previously Diagnosed Obstructive Sleep Apnea Using Computer Decision Support Alerts R. Scott Evans, Vrena B. Flint, Tom V. Cloward, William Beninati, James F. Lloyd, Kimberly Megwalu, Kathy J. Simpson, Ahmed M. Alsharit, Shayna B. Balls, Robert J. Farney Intermountain Healthcare University of Utah Salt Lake City, Utah USA

  2. Obstructive Sleep Apnea • OSA: worldwide problem affecting 2-14% of the general population…most patients remain undiagnosed. Higher in hospitalized patients? • OSA patients are at elevated risk for hypoxemia, cardiac arrhythmias, cardiorespiratory arrest, heart failure, stroke and death during hospitalization.

  3. Obstructive Sleep Apnea • Positive airway pressure (PAP) is the therapy of choice for the treatment of hospitalized patients with OSA. • Providing proper PAP therapy to hospitalized patients depends upon early recognition of OSA.

  4. Obstructive Sleep Apnea • Clinical screening questionnaires are used to identify hospitalized patients with OSA; especially before surgery • Moreover, many patients are admitted to the hospital with a previous diagnosis of OSA that is not reported.

  5. Obstructive Sleep Apnea • Thus, many patients with OSA do not receive appropriate therapy during hospitalization due to the lack of information from previous inpatient and outpatient encounters. • Large enterprise data warehouses (EDWs) provide the ability to monitor patient encounters over wide geographical areas.

  6. Background • Intermountain Medical Center (IMC) is a 456-bed teaching hospital and is Intermountain Healthcare’s (IH) Level One trauma facility • IH is comprised of 22 hospitals, 197 clinics, instacares, physician offices and home health.

  7. Background • Integrated EMR contains most clinical information including bedside charting by respiratory therapy. • Extensive EDW where most clinical and business information is updated every night from all inpatient and outpatient facilities and provides the ability to generate decision support alerts as soon as patients are admitted.

  8. PAP, Vent, Trach OSA Table

  9. Study DesignJanuary 2012 through October 2012 • PAP if patients wore a PAP mask at home, if their medical history reflected a PAP prescription or O2 recommended. • Respiratory therapy director and a nurse practitioner from the sleep medicine service followed up and documented the respiratory therapy evaluation and patient visits for 500 patients alerted as having previous documentation of OSA.

  10. Comparison of patients with (2012) and without (2011) OSA Monitor Alerts * P < 0.0002. **P < 0.006.

  11. * P < 0.0002. # P < 0.03. ##P < 0.002

  12. **P < 0.006. # P < 0.03.

  13. * P < 0.0002. **P < 0.006.

  14. MET = medical emergency team (19 fewer OSA patients, 11% decrease; p = 0.4068).

  15. 500 OSA alerted patients followed by respiratory director and nurse practitioner from the sleep service • 141 (28%) were placed on PAP-50 (36%) requested by RT. • 113 (23%) patients admitted to having OSA but declined PAP because of the discomfort. • 92 (18%) denied having OSA although they did have previous ICD9 coding documenting otherwise. • 14 (3%) patients were subsequently placed on a ventilator.

  16. SUMMARY OSA is highly prevalent and undertreated in hospitalized patients. Computer alerts resulted in significantly more OSA patients receiving appropriate medical care and significantly fewer experienced hypoxemia. The impact was greater for non-surgery patients compared to surgery patients. Installed at 8 other IH hospitals with RT Depart.

  17. STOP BANG Questionnaire • Snoring: Do you snore loudly (louder than talking/enough to be heard through closed doors)? • Tired: Do you often feel tired, fatigued, or sleepy during daytime? • Observed: Has anyone observed you stop breathing during your sleep? • Blood pressure: Do you have or are you being treated for high blood pressure? • BMI: BMI more than 35 kg/m2? • Age: Age over 50 yr old? • Neck circumference: Neck circumference greater than 40 cm? • Gender: Gender male? • High risk of OSA: answering yes to three or more.

  18. OSA patients placed on PAP Both study years Average age (62.8 vs. 63.2) Percent female (40 vs. 47; p < 0.0001) BMI (38.47 vs. 35.45; p< 0.03) Charlson comorbidity scores (5.9 vs. 5.9) Patient choice and lack of knowledge of potential harm

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