Platelet function assay and the discontinuance time of aspirin and clopidogrel before surgery

Platelet function assay and the discontinuance time of aspirin and clopidogrel before surgery - preoperative platelet function assay with aspirin and clopidogrel

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000011232

Enrollment

188

Registered

2013-07-31

Start date

2013-07-30

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

before undergoing elective surgery under general anesthesia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients with an ASA physical status I-II who were gone off within 30 days or maintained their own antiplatelet therapy (only aspirin 100mg per day or aspirin 100mg per day plus clopidogrel 75mg per day) before undergoing elective surgery under general anesthesia

Exclusion criteria

Exclusion criteria: patients with severe systemic disease, a hypovolemic state, congenital platelet disorder, known history of aspirin resistance, or who were being treated with other anticoagulants or herbal medications

Design outcomes

Primary

Measure	Time frame
There was a significant decrease in PFA value when the periods of antiplatelet discontinuation exceed seven days, not five days	—

Countries

Asia(except Japan)

Contacts

Public ContactIl-Ok Lee

Korea University Anesthesiology and Pain Medicine

iloklee@korea.ac.kr82-2-2626-1437

Outcome results