On-line medical control versus protocol-based prehospital care

Area of Science:

• Emergency Medicine
• Prehospital Care
• Healthcare Management

Background:

• Traditional prehospital care often relies on direct physician oversight through online medical control (OLMC).
• Alternative models using evidence-based protocols aim to standardize and potentially improve care efficiency and quality.
• The study investigates the impact of transitioning from OLMC to paramedic-driven protocols for specific chief complaints.

Purpose of the Study:

• To compare on-scene time, therapeutic appropriateness, and diagnostic accuracy between OLMC and protocol-based prehospital care.
• To evaluate the clinical safety and potential cost-effectiveness of chief complaint-based protocols in an urban EMS setting.

Main Methods:

• A prospective before-and-after study design was employed, comparing two phases of prehospital care in a single urban municipality.
• Phase 1 utilized on-line medical control (OLMC) by nurses, while Phase 2 used chief complaint-based protocols for paramedics.
• Patient records were analyzed for on-scene time, assessments, treatments, and diagnostic agreement between paramedics and emergency physicians.

Main Results:

• On-scene time was reduced by 1 minute in the protocol phase (Phase 2) compared to the OLMC phase (Phase 1).
• Inappropriate treatment decisions decreased from 7.4% to 5.1% with protocol use, indicating improved therapeutic appropriateness.
• Paramedic and physician diagnostic agreement remained high (77-78%) and did not significantly change between the two care models.

Conclusions:

• The implementation of chief complaint-based protocols led to modest improvements in prehospital care efficiency and therapeutic decision-making.
• Protocol-driven care was found to be clinically safe for the evaluated chief complaints, with no adverse impact on diagnostic agreement.
• Protocol use may offer a cost-effective alternative to OLMC by potentially reducing training and staffing demands for EMS.