Asymmetrical Bioimpedance in the Anterior Circulation for Urgent Stratification of suspected Stroke (ABACUS Stroke): study protocol for a diagnostic accuracy study

Asymmetrical Bioimpedance in the Anterior Circulation for Urgent Stratification of suspected Stroke (ABACUS Stroke): study protocol for a diagnostic accuracy study

Early identification and remedy of stroke enhance consequence. Ischaemic stroke because of giant vessel occlusion (LVO) advantages from time-critical thrombectomy however that is solely out there in extremely specialised healthcare providers.

Cerebral Bioimpedance Asymmetry (CBA) measurement obtained with the moveable and speedy Cerebrotech Visor™ System machine might be able to establish sure sorts of stroke together with LVO. This check might be deployed pre-hospital and used to instantly direct sufferers to the most applicable healthcare service for remedy.

 Asymmetrical Bioimpedance in the Anterior Circulation for Urgent Stratification of suspected Stroke (ABACUS Stroke): study protocol for a diagnostic accuracy study
Asymmetrical Bioimpedance in the Anterior Circulation for Urgent Stratification of suspected Stroke (ABACUS Stroke): study protocol for a diagnostic accuracy study

This study is evaluating the diagnostic accuracy of CBA measurements obtained from a real-world inhabitants of suspected stroke.Study design: Prospective observational cohort study.Setting: A hyperacute stroke unit and neuroscience centre in North East England.

Participants: Adults with a paramedic assigned prognosis of suspected stroke arriving at hospital inside 6 hours of symptom onset.Index Test: Cerebral Bioimpedance Asymmetry measurement carried out utilizing the Cerebrotech Visor™ System.

Measurement values produce steady knowledge (vary 0 -100); pre-defined threshold for constructive state ≥ 10.Reference Standard Tests: Standard CT mind +/- CT/MR angiography, and skilled clinician opinion will set up the following scientific outcomes which represent the suspected stroke inhabitants: ischaemic stroke +/- giant vessel occlusion; symptomatic extreme anterior vessel stenosis; giant (≥60ml) and small (<60mls) vessel intracerebral haemorrhage; transient ischaemic assault; stroke mimic circumstances; prior territorial stroke.

Analyses: Sensitivity, specificity, adverse and constructive predictive values, space below the Receiver Operating Characteristic curve for identification of i) “complicated stroke” (ischaemic stroke with giant vessel occlusion or symptomatic extreme anterior vessel stenosis or intracerebral haemorrhage ≥60ml or prior territorial stroke) and

ii) ischaemic stroke with giant vessel occlusion in isolation.Sample dimension: 124 individuals.

The outcomes from this study will decide how precisely CBA measurement utilizing the Cerebrotech Visor™ System can establish key stroke sorts inside the suspected stroke inhabitants.

Acceptable diagnostic efficiency could be an vital step forwards for entry to time-critical remedies.Registered with ISRCTN (identifier: ISRCTN79169844) on 06/08/2018.

Leave a Comment

Your email address will not be published. Required fields are marked *