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  • Title: TRUST-tPA trial: Telemedicine for remote collaboration with urgentists for stroke-tPA treatment.
    Author: Mazighi M, Meseguer E, Labreuche J, Miroux P, Le Gall C, Roy P, Tubach F, Amarenco P.
    Journal: J Telemed Telecare; 2017 Jan; 23(1):174-180. PubMed ID: 26656722.
    Abstract:
    Background Previous observational studies have shown that telemedicine is feasible and safe to deliver intravenous (IV) recombinant tissue plasminogen activator (rt-PA). However, implementation of telemedicine may be challenging. To illustrate this fact, we report a study showing that telemedicine failed to improve clinical outcome and analyze the reasons for this shortcoming. Methods We established a tele-stroke network of 10 emergency rooms (ERs) of community hospitals connected to a stroke center to perform a randomized, open-label clinical trial with blinded outcome evaluation. Eligible patients were randomly assigned to either a usual care arm (i.e. immediate transfer to the stroke center and administration of IV rt-PA if indication was confirmed upon stroke arrival) or tele-thrombolysis arm (i.e. immediate administration of IV rt-PA in ER and transfer to the stroke center). The primary efficacy outcome was an excellent outcome (modified Rankin scale (mRS) 0-1 at 90 days). Secondary endpoints included favorable outcome (90-day mRS 0-2) and early neurological improvement (NIHSS score 0-1 at 24 hours or a decrease of ≥ 4 points within 24 hours). Safety outcomes included symptomatic intracerebral hemorrhage (ICH) per ECASS II definition, any ICH and all-cause mortality. Results During an accrual time of 48 months, because of a slow enrollment rate, only 49 of 270 patients initially planned for inclusion were randomized into usual care ( n = 23) and tele-thrombolysis ( n = 26). Despite random assignment, patients allocated to tele-thrombolysis were older and had more severe stroke than patients allocated to usual care. The median duration of video-conference was 23 minutes in the usual care arm and 73 minutes in the tele-thrombolysis arm. Eighty-four percent of patients in the tele-thrombolysis arm were treated by IV rt-PA in comparison to 18% in the usual care arm. In univariate analysis but not after adjustment for age and baseline NIHSS, patients allocated in the usual care arm had a higher rate of excellent or favorable outcome. There were no differences in safety outcomes, with only one symptomatic ICH occurring in the tele-thrombolysis arm. Conclusions Stroke patients included in the telemedicine arm of the TRUST-tPA trial increased their rt-PA eligibility five-fold. However, the efficacy and safety remains to be determined (ClinicalTrials.org, NCT00279149).
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