Hyperdense artery sign at non-contrast computed tomography reconstructed images for selecting patients for endovascular therapy

Hyperdense artery sign at non-contrast computed tomography reconstructed images for selecting patients for endovascular therapy - HASTE study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000040555

Enrollment

Registered

2020-05-31

Start date

2020-06-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Acute ischemic stroke

Interventions

When there is a hyperdense artery sign at non-contrast computed tomography reconstructed images, digital subtraction angiography is immediately performed before acute endovascular therapy. If there is

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Endovascular treatment can be initiated within 6 hours of symptom onset NIHSS score of >=6 ASPECTS of >=6 Age>=20 years Written informed consent is obtained

Exclusion criteria

Exclusion criteria: Prestroke mRS score>=3 CT not taken at our hospital Imaging of the previous hospital revealed large vessel occlusion Endovascular therapy is contraindicated

Design outcomes

Primary

Measure	Time frame
Door-to-puncture time	—

Secondary

Measure	Time frame
Concordance rate between the site of hyperdense artery sign and occlusion site in digital subtraction angiography modified Rankin Scale at 90 days Ischemic stroke recurrence, symptomatic intracranial hemorrhage and death withn 90 days	—

Countries

Japan

Contacts

Public ContactTakuya Saito

Kohan Hospital Department of Stroke Neurology

tsai10@kohnan-sendai.or.jp022-248-2131

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026