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HEMS for Mechanical Thrombectomy

Decreasing Prehospital Delay to Mechanical Thrombectomy Using a Helicopter Emergency Medical Services Unit

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04834284
Enrollment
60
Registered
2021-04-08
Start date
2020-06-01
Completion date
2023-12-31
Last updated
2023-01-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ischemic Stroke

Brief summary

Elapsed time from the onset of stroke symptoms to the point of revascularization is the key determinant of the optimal outcome of acute ischemic stroke. Pharmacological treatment is less effective if the thrombus occluding the artery is big enough and mechanical thrombectomy is required to gain recanalization. Mechanical thrombectomy can be done only in comprehensive stroke centres. There are 5 comprehensive stroke centres in Finland which causes regional inequality when it comes to reaching mechanical thrombectomy in a reasonable time limit. The aims of the study is to measure the effect of dispatching a helicopter emergency medical services unit on the treatment delays of a stroke patient with large vessel occlusion. The HEMS unit is dispatched to both: getting patient directly to the comprehensive stroke centre as well as to interfacility tranfers.

Interventions

None listed

Sponsors

Tampere University Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 110 Years
Healthy volunteers
No

Inclusion criteria

\- all adult patients transferred for mechanical thrombectomy from the South Ostrobothnia Hospital District to the Tampere University Hospital

Exclusion criteria

* The neurologist on call at the Tampere University hospital deems the patient unable to benefit from mechanical thrombectomy

Design outcomes

Primary

MeasureTime frameDescription
The difference of transport times from the onset of ambulance transport to Tampere university hospital until the recording of CT Scout imagefrom onset of symptoms up to 24 hoursminutes

Secondary

MeasureTime frameDescription
The difference of onset to revascularisation time between the groups from the onset of symptoms (last known well) until save time of post revascularization imagefrom onset of symptoms up to 24 hoursminutes
The time difference from the onset of symptoms (last known well) until the save time of post revascularization imagefrom onset of symptoms up to 24 hoursminutes
90 days modified Rankin scale outcometelephone interview 90 days after mechanical thrombectomymRS 0-6
Availability of the ambulance to the next emergency medical services mission in its own region. Time to next ems missionfrom the beginning of ambulance transport up to 24 hourshours

Countries

Finland

Contacts

Primary ContactPauli Vuorinen, MD
pauli.e.vuorinen@pshp.fi+358+3+311611

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026