First prospective, single-arm, single-centre study to evaluate the efficacy and safety of the iNstroke thromboaspiration catheter system (iNstroke) for stroke in patients with acute ischemic stroke.
This is a prospective, single-arm, single-centre clinical safety and efficacy research. The purpose of the study is to evaluate safety and efficacy the device designed by iVascular for thromboaspiration (iNstroke) in patients who have suffered a stroke and who undergo thromboaspiration due to an acute occlusion of neuro vessels.
Study Type
OBSERVATIONAL
Enrollment
113
Patients to undergo thromboaspiration with iNstroke.
Hospital Universitario Virgen del Rocío
Seville, Spain
Performance success
Recanalization rate with mTICI ≥2b-3 (modified thrombolysis in cerebral infarction scale).
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
MAE
All serious adverse events.
Time frame: 24 hours (-8/+12 hours)
Mortality
All-cause mortality.
Time frame: 90 days
Navigability
Number of procedures in which the InStroke catheter reaches the intracranial occluded segment (M1, basilar artery) through coaxial system with a microcatheter and without the assistance of other additional devices.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Clinical progress
Good functional clinical progress (modified Rankin scale 0-2).
Time frame: 90 days
Proportion of patients with rapid neurological improvement
Proportion of patients with rapid neurological improvement (more than 4 points on the NIHSS scale)
Time frame: 24 hours
Reduction of NIHSS scale
Proportion of patients with a reduction of ≥8 points on the NIHSS scale (during the first 24 hours post-treatment), or NIHSS 0-1 (at 72 hours \[or at the time of discharge, whichever occurs first\]).
Time frame: 24 or 72 hours
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Procedure duration
Procedure duration defined as the time from puncture to when grade ≥2b is reached on the mTICI scale with less than three passes or, if not achieved, until the final angiogram.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Number of passes with the device until recanalisation.
Number of passes with the device until recanalisation.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Percentage of effective recanalisation in a first pass
Percentage of effective recanalisation in a first pass, the effect of which will be measured by a recanalisation rate of TICI2c-3 and TICI 2b-3.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Rate of need to use another reperfusion technique
Rate of need to use another reperfusion technique due to suction system failure.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Assessment of symptomatic intracerebral haemorrhage
Assessment of symptomatic intracerebral haemorrhage by magnetic resonance imaging (MRI)/computed tomography (CT). ICH is defined as the presence of extravascular blood in the brain or within the skull- ICH is considered symptomatic (SICH) if it is associated with clinical deterioration (worsening of the score National Institutes of Health Stroke Scale (NIHSS) of ≥4 points) or if it causes death and is identified as the predominant cause of neurological deterioration, according to the assessment of an independent clinical events committee (CEC).
Time frame: 24 (-8/+12) hours.
Neurological deterioration
Classification of neurological deterioration of ≥4 points on the NIHSS scale.
Time frame: 24 (-8/+12) hours.
Embolization rate
Embolization rate in a previously non-involved territory on cerebral angiography.
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.
Mortality rate
Mortality rate related to the procedure
Time frame: 3 days (+/-24 hours) or at discharge, whichever occurs first.
Procedure complication rate
Procedure complication rate: arterial perforation, arterial dissection and severe vasospasm in the target vessel
Time frame: In the course of cervico-cranial catheterization, evaluated immediately after endovascular procedure.