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PubMed
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Stroke Interventions in Clinical Trials
Printable Version
STRokE DOC Arizona TIME
Stroke Team Remote Evaluation Using a Digital Observation Camera Arizona: The Initial Mayo Clinic Experience



Principal Investigator
Bart M. Demaerschalk (PI), Bentley J. Bobrow (Co-PI)

PI Address
Trial E-mail: demaerschalk.bart@mayo.edu
Co-Principal Investigator:
Bentley J. Bobrow, MD
Mayo Clinic Hospital
5777 E. Mayo Blvd.
Phoenix, AZ 85054
(480)342-3370

Contact Address
Terri EJ Kiernan 480-342-3076 kiernan.terri@mayo.edu


Sponsor



Trial Phase:Phase III
Study Size Actual:52
Study Size Planned:50
Centers Actual:2
Max Time from onset:12 Hours
Min Age:18
Follow-up Duration:90 Days
ISRCTN#NCT00623350
Status:
This study has been completed. As of September 30, 2008, 78 patients have been screened for trial eligibility and 52 subjects have been randomized (20 at Yuma Regional Medical Center and 32 at Kingman Regional Medical Center). Overall, 30% of all randomized subjects received intravenous thrombolytics.

Purpose:
Study aims (1) to determine the impact of a site-independent, remote, telemedicine consultation system on decision making in the Emergency Department, regarding the decision to treat or not to treat with thrombolytics; (2) to assess the numbers of patients who receive thrombolytics and the time to treatment in patients evaluated by telemedicine versus telephone only; (3) to assess the appropriateness of thrombolytic treatment decisions in telemedicine versus telephone-only consultations; and (4) to assess the completeness of the data collection in telemedicine versus telephone-only consultations.

Interventions:
Digital Observation Camera
Acute Stroke consult via audio video telemedicine for the decision of tPA within 3 hours of symptom onset.
Telephone Consult
Acute Stroke consult by Telephone for the decision of tPA within 3 hours of symptom onset.

Location(s):
Arizona
USA

Year Started: 2007
Year Finished: 2009
Year Published: 2009


Design:
Interventional, Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Safety/Efficacy Study.

Inclusion Criteria
Symptoms consistent with acute stroke (ischemic or hemorrhagic); acute presentation of stroke symptoms, per bedside physician discretion (onset generally less than 12 hours and likely less than 3 hours)

Exclusion Criteria
Unlikely to complete study through 90-day follow-up.

Patient Involvement:
Patients with acute presentation of stroke symptoms, per bedside practitioner discretion (onset generally less than 12 hours and likely less than 3 hours)will be randomized to one of two arms. [Two arms: Video Camera/Telemedicine (Intervention n = 25) and No Video Camera/Telephone only (Control n = 25)]

Primary Outcome:
To determine the impact of a site-independent, remote, telemedicine consultation system on decision making in the Emergency Department, regarding the decision to treat or not to treat with thrombolytics; to assess the numbers of patients who receive thrombolytics and the time to treatment in patients evaluated by telemedicine versus telephone only;
to assess the appropriateness of thrombolytic treatment decisions in telemedicine versus telephone-only consultations; to assess the completeness of the data collection in telemedicine versus telephone-only consultations.





Secondary Outcome:

Results:
A single randomized, blinded, prospective trial comparing telephone-only consultations to telemedicine consultations for acute stroke was selected and appraised. Correct acute stroke treatment decisions were made more often in the telemedicine group versus the telephone-only group (98% vs. 82%, [number needed to assess = 6]). Stroke telemedicine when compared with telephone-only consultations was more sensitive (100% vs. 58%), more specific (98% vs. 92%), had a more favorable positive likelihood ratio (LR: 41 vs. 7) and negative likelihood ratio (LR: 0 vs. 0.5), and had higher predictive values (positive predictive value 94% vs. 76%, and negative predictive value 100% vs. 84%) for the determination of thrombolysis eligibility. In conclusion, stroke telemedicine when compared with telephone-only consultations is an effective method to determine thrombolysis eligibility for acute stroke patients who do not have immediate access to a stroke neurologist.

Comments:
Scientific Name: Stroke Team Remote Evaluation Using a Digital Observation Camera Arizona: The Initial Mayo Clinic
Experience

Source of Information:
ClinicalTrials.gov
Presented at the 2009 International Stroke Conference (February 2009).

Web Links and Publications:
Telemedicine versus telephone for remote emergency stroke consultations: a critically appraised topic.
Neurologist 2009 May;15(3):163-6

The state of emergency stroke resources and care in rural Arizona: a platform for telemedicine.
Telemed J E Health 2009 Sep;15(7):691-9

Stroke telemedicine.
Mayo Clin Proc 2009;84(1):53-64

Efficacy of site-independent telemedicine in the STRokE DOC trial: a randomised, blinded, prospective study.
Lancet Neurol 2008 Sep;7(9):787-95

STRokE DOC Arizona TIME
ClinicalTrials.gov

This information last updated on: 10/26/2009

Reviewed on: 10/26/2009.

UID: 827

   

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