Key result
Electronically detected S3 was highly specific (94%) for ADHF, while misdiagnosed ADHF patients accrued over $2500 (32%) more in hospital charges than those correctly diagnosed.
Why the study?
Does electronically detected S3 data improve diagnostic accuracy and reduce hospital charges in emergency department patients with suspected ADHF?
Observational (n=340)
Blinded outcome assessment
Does electronically detected S3 data improve diagnostic accuracy and reduce hospital charges in emergency department patients with suspected ADHF?
Electronically detected S3 provides high specificity for diagnosing ADHF in the emergency department, which may help prevent the significant excess hospital costs associated with misdiagnosis.
Should not yet change ED diagnostic pathways for suspected ADHF; leaves open whether electronic S3 reduces misdiagnosis-related charges.
Because many of the signs and symptoms of acute decompensated heart failure (ADHF) are nonspecific (e.g., dyspnea), accurate diagnosis can be challenging. Highly specific indicators of ADHF can assist in early and accurate diagnosis, therefore providing a potential for better outcomes and cost efficiency. Demographic, clinical, laboratory, and electronically detected S3 data (Inovise Medical, Inc., Portland, OR) were collected in 340 emergency department patients with suspected ADHF. After hospital discharge, two blinded cardiologists determined whether ADHF was present. Total hospital charges were also recorded. The overall ED misdiagnosis rate was 14.0%, of which over 90% were a failure to recognize ADHF when it was present. The S3 was highly specific (94%) for ADHF and was valuable in combination with BNP values to improve the diagnostic accuracy in undifferentiated emergency department dyspenic patients. Misdiagnosed ADHF patients accrued over $2500 more in hospital charges than patients correctly diagnosed with ADHF, a 32% increase.
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Peacock et al. (2006) conducted an observational in Suspected acute decompensated heart failure (ADHF) (n=340). Electronically detected S3 (AUDICOR) was evaluated on Specificity for ADHF. Electronically detected S3 was highly specific (94%) for ADHF, while misdiagnosed ADHF patients accrued over $2500 (32%) more in hospital charges than those correctly diagnosed.
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