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Related Experiment Video

Updated: Jul 3, 2026

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models
14:14

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models

Published on: August 12, 2018

EDEN - Enhanced Dispatch for Efficient Neurointervention: mathematical model from national data.

Esa Mattila1,2, Sanna Hoppu3,4, Mika Mahosenaho3

  • 1General Practice Special Training, Faculty of Medicine and Life Sciences, Tampere University, Tampere, FI-33014, Finland. esa.mattila@tuni.fi.

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
|July 2, 2026
PubMed
Summary

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Prompt dispatcher-initiated tele-CPR and facilitation of bystander's CPR to improve out-of-hospital cardiac arrest outcomes: A prospective cohort study from Finland.

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Author Response: "A Transfer Strategy Utilizing a Helicopter and a Ground Ambulance Together Does Not Prolong Door-In-Door-Out Times in Thrombectomy Patients: A Retrospective Analysis".

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BMC emergency medicine·2025

A hybrid transport strategy using helicopters and ambulances significantly expands access to mechanical thrombectomy (MT) for acute ischemic stroke patients. This approach nearly doubles the eligible population within the critical 120-minute treatment window.

Area of Science:

  • Neurology
  • Emergency Medicine
  • Health Services Research

Background:

  • Mechanical thrombectomy (MT) is a key treatment for acute ischemic stroke.
  • Optimizing prehospital patient transfer strategies, such as mothership vs. drip-and-ship, is crucial for reducing delays.
  • Incorrect prehospital triage can lead to significant time loss.

Purpose of the Study:

  • To evaluate the impact of different transportation strategies on patient access to mechanical thrombectomy (MT).
  • To assess the potential increase in patient coverage within the 120-minute time limit using a hybrid transport model.
  • To compare ground transportation with combined ground-and-air (Helicopter Emergency Medical Services - HEMS) strategies.

Main Methods:

  • A mathematical model was used to simulate patient access to a single MT-capable center (Tampere University Hospital).
Keywords:
Air ambulancesEmergency medical servicesHealth services accessibilityStrokeThrombectomyTransportation of patients

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Last Updated: Jul 3, 2026

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models
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  • Population data from Finland, divided into 1km² grid cells, was utilized.
  • Travel times were calculated using OpenRouteService, evaluating three scenarios: ground transport only, HEMS dispatched after 10 minutes on scene, and simultaneous HEMS/EMS dispatch.

    • Main Results:

    • Ground transportation alone allowed 1,016,180 individuals to reach the center within 120 minutes.
    • A hybrid strategy combining ground transport with HEMS increased reachable population by 97% (981,391 individuals).
    • Simultaneous dispatch of EMS and HEMS provided a further modest increase of 37,495 individuals.

    Conclusions:

    • A hybrid transportation strategy significantly enhances access to mechanical thrombectomy.
    • Helicopter use nearly doubles the potential patient catchment area for MT centers.
    • Early recognition of large vessel occlusion stroke offers a smaller, additional benefit compared to optimized transport logistics.