Opsens Optowire for Fractional Flow Reserve - The O2 Pilot Study (O2)
연구 개요
상세 설명
Fractional flow reserve (FFR) measurement involves determining the ratio between the maximum achievable blood flow in a diseased coronary artery and the theoretical maximum flow in a normal coronary artery. An FFR of 1.0 is widely accepted as normal. An FFR value lower than 0.75 - 0.80 is generally considered to be associated with myocardial ischemia (MI).
FFR is easily measured during routine coronary angiography by using a pressure wire to calculate the ratio between coronary pressure distal to a coronary artery stenosis and aortic pressure under conditions of maximum myocardial hyperemia. This ratio represents the potential decrease in coronary flow distal to the coronary stenosis.
Over the past decade, FFR measurement has been increasingly used in cardiac catheterization laboratories. It provides a quantitative assessment of the functional severity of a coronary artery stenosis identified during coronary angiography and cardiac catheterization.
Opsens, Inc. has developed a new pressure wire for use in determining FFR in coronary arteries; the OptoWire. The OptoWire is an instrumented guide wire with a fiber optic pressure sensor mounted 3.5 cm proximal to the tip. The Optowire measures blood pressure during diagnostic and/or interventional procedures when used in combination with the OptoMonitor.
The O2 study is a pilot study which aims to provide preliminary experience in human patients with coronary artery disease. The study data will also be used as part of design validation.
The O2 study is a prospective single arm study designed to assess the usability, functionality, and safety of the Optowire and Optomonitor in patients.
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Quebec, 캐나다, G1V 4G5
- IUCPQ - Laval Hospital
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
Patients with
- Stable angina or,
- Unstable angina pectoris or,
- Atypical chest pain or no chest pain but with suspected ischemia
- At least one moderate lesion in native coronary artery thought to produce ischemia
- Operator and patient agree for procedures
- Patient (> 18 years) has signed a written informed consent prior to procedure
Exclusion Criteria:
- Lesions with angiographic 'haziness' or suspected to contain thrombus
- Post-coronary artery bypass grafting
- Total occlusion
- If use of atherectomy device is indicated
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 특수 증상
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Fractional flow reserve
Fractional flow reserve measurement
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Fractional flow reserve measurement
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Safety and handling assessment of the Optowire
기간: Patients will be followed through removal of the OptoWire from percutaneous insertion site and completion of the cardiac catheterization procedure (expected average <1hr)
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Dedicated questionnaires will be used for such assessment |
Patients will be followed through removal of the OptoWire from percutaneous insertion site and completion of the cardiac catheterization procedure (expected average <1hr)
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Comparison of FFR values measured with Optowire vs. with FFR guide wire used in standard practice
기간: Patients will be followed through removal of the OptoWire from percutaneous insertion site and completion of the cardiac catheterization procedure (expected average <1hr)
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In selected cases, the operator may choose to perform FFR measurements using currently approved FFR wires.
Values obtained with standard FFR wires and Optowire may therefore be compared.
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Patients will be followed through removal of the OptoWire from percutaneous insertion site and completion of the cardiac catheterization procedure (expected average <1hr)
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공동 작업자 및 조사자
스폰서
수사관
- 수석 연구원: Olivier F Bertrand, MD PhD, International Chair on Interventional Cardiology and Transradial Approach
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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