Fractional Flow Reserve-guided Provisional Side Branch Intervention

Coronary Artery Disease Clinical Trial

Official title:

Physiologic Evaluation of the Provisional Side Branch Intervention Strategy for Bifurcation Lesions Using Fractional Flow Reserve

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00351780
• Other study ID #: H-0602-027-167
• Status: Completed
• Phase: Phase 4
• First received: July 12, 2006
• Last updated: July 15, 2011
• Start date: June 2004
• Est. completion date: December 2007

Study information

• Verified date: July 2011
• Source: Seoul National University Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Korea: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

Study purpose: To evaluate fractional flow reserve-guided side branch intervention strategy Method: Provisional side branch intervention if jailed side branch FFR<0.75

Description:

Patients with de novo, coronary bifurcation lesions with jailed side branches after successful drug-eluting stent implantation at the main branches will be prospectively and consecutively enrolled. Control group patients will be selected from the database.

Jailed side branches need to have an ostial stenosis >50%, vessel size >2 mm, vessel length >40 mm and lesion length <10 mm by visual estimation.

Study procedure Coronary stenting of the main branch should be performed with standard interventional techniques using drug-eluting stents. In the FFR group, pressure measurement would be performed using a 0.014 inch pressure guide wire (PressureWire, Radi Medical Systems, Uppsala, Sweden)Lesions with an FFR <0.75 are considered to have functionally significant stenosis and side branch balloon dilatation is allowed only for these lesions. It is recommended to use a smaller balloon than the side branch vessel diameter. After kissing balloon inflation, FFR will be measured again at the same site and further intervention is only recommended when FFR was <0.75 after kissing balloon dilatation. In the conventional group, the decision to treat the side branch lesion and the method of intervention are all up to the operators' discretion.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 100
• Est. completion date: December 2007
• Est. primary completion date: December 2007
• Accepts healthy volunteers: No
• Gender: Both
• Age group: N/A and older

Eligibility

Inclusion Criteria:

Jailed side branches with an ostial stenosis >50%, vessel size >2mm, vessel length >40mm and lesion length <10mm by visual estimation.

Exclusion Criteria:

ST elevation myocardial infarction Left main stenosis, totally occluded lesion Angiographically visible thrombus, significant lesion within the main branch proximal to the stented segment, significant distal lesion at a side branch Regional wall motion abnormalities of the stented artery and jailed side branch segments Left ventricular ejection fraction<40% Primary myocardial disease Serum creatinine >2mg/dl Predilatation of side branch before the main branch stent implantation Contraindications to adenosine

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Coronary Artery Disease
• Coronary Disease
• Myocardial Ischemia

Intervention

Device:
• FFR measurement, side branch angioplasty

Locations

Country	Name	City	State
Korea, Republic of	Seoul National University Hospital	Seoul

Sponsors (1)

Lead Sponsor	Collaborator
Seoul National University Hospital

Country where clinical trial is conducted

Korea, Republic of,