Differences in Epicardial Plaque and Microvascular Function in Women With an Acute Myocardial Infarction
연구 개요
상세 설명
The hypothesis of the current study is that plaque erosion and microvascular dysfunction are key features responsible for the increased peri-MI mortality in young women. In order to test this hypothesis the following specific aims are proposed using a special intravascular ultrasound technique called virtual histology and microvascular function (effect of intracoronary adenosine on coronary blood flow) in patients coming to the cardiac catheterization laboratory with an acute MI:
- To determine if plaque rupture or plaque erosion is more prevalent in young women (<50 years) compared with older women (≥ 50 years) and men in the development of an acute MI
- To determine if inflammatory mediators of plaque rupture are higher in older women and men with an acute MI compared with younger women
- To determine if microvascular function is abnormal in young women undergoing percutaneous coronary revascularization with an acute MI compared to older women and men
- To determine if alterations exist in the number and function of EPCs in young women (<50 years) compared with older women (≥ 50 years) and men who have had an acute MI and to determine the association with microvascular function
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
-
-
Minnesota
-
Rochester, Minnesota, 미국, 55905
- Mayo Clinic
-
-
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Age of 18 years or older
- Acute coronary syndrome defined as at least two of the following:
A) an elevated cardiac biomarker (troponin or CK-MB), B) new or dynamic ECG changes in at least 2 contiguous standard electrocardiographic leads of ST depression > 1 mm or ST elevation of >1 mm or T-wave inversions, C) chest pain or discomfort of at least 15 minutes duration, D) a new wall motion abnormality by echocardiography
- Patient who is undergoing coronary angiography
- Physician planning to perform IVUS for treatment of the infarct-related vessel
Exclusion Criteria:
- Creatinine > 2.0 mg/dL (most recent)
- Hemodynamically unstable patients (systolic blood pressure < 90 mmHg or heart rate > 110 beats/ minute or presence of an intra-aortic balloon pump)
- Coronary revascularization (percutaneously or surgically) within 6 months
- The use of chronic immunosuppressive agents
- No target lesion was found at the time of cardiac catheterization that will be percutaneously intervened upon (the patient must undergo percutaneous coronary intervention)
- Inability to give informed consent
- Pregnant or lactating women
- Prisoners
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 특수 증상
- 할당: 무작위화되지 않음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
|
활성 비교기: 1
Gender comparison
|
Intravascular ultrasound with virtual histology
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
기간 |
|---|---|
|
Plaque Virtual Histology
기간: Performed during PCI
|
Performed during PCI
|
2차 결과 측정
결과 측정 |
기간 |
|---|---|
|
Endothelial Progenitor Cells
기간: Collected immediately pre PCI
|
Collected immediately pre PCI
|
|
Microvascular function in the noninfarct related vessel
기간: Assessed immediately post PCI
|
Assessed immediately post PCI
|
|
Virtual Histology in noninfarct related vessel
기간: Assessed immediately post PCI
|
Assessed immediately post PCI
|
공동 작업자 및 조사자
스폰서
수사관
- 수석 연구원: Patricia M. Best, M.D., Mayo Clinic
간행물 및 유용한 링크
유용한 링크
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
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .