The Impact of Accelerated Diagnostic Protocol Implementation on Chest Pain Observation Unit Utilization

Area of Science:

• Cardiology
• Health Services Research
• Clinical Pathway Implementation

Background:

• Limited data exist on the impact of the HEART Pathway (history, ECG, age, risk factors, and troponin) on observation unit (OU) utilization.
• Understanding these effects is crucial for optimizing patient flow and resource allocation in acute cardiac care settings.

Purpose of the Study:

• To evaluate the effect of implementing the HEART Pathway on the use of observation units for patients presenting with chest pain.
• To assess changes in patient demographics, hospitalization rates, and myocardial infarction (MI) diagnoses following HEART Pathway adoption.

Main Methods:

• A retrospective analysis of observation unit registry data was conducted over a 4-year period (2 years pre- and 2 years post-HEART Pathway implementation).
• Adult patients admitted to the OU for chest pain were included. Key outcome measures included the proportion of chest pain patients within the OU, hospitalization rates, and MI diagnosis rates.
• Statistical comparisons (chi-squared tests, Mann-Whitney U test) were used to analyze pre- and post-implementation data.

Main Results:

• The proportion of chest pain patients managed in the OU decreased significantly after HEART Pathway implementation (57% to 43.6%; P < 0.001).
• Hospitalization rates showed a non-significant trend upward (10.4% to 12.4%; P = 0.07).
• There was a significant increase in myocardial infarction (MI) diagnoses (0.8% to 2.0%; P = 0.008) and the median age of OU patients increased (52 to 54 years; P < 0.001).

Conclusions:

• HEART Pathway implementation led to the management of higher-risk chest pain patients within the observation unit.
• Post-implementation, patients in the OU were older and demonstrated increased likelihoods of hospitalization and MI diagnosis, indicating a potential shift towards managing more complex cases.