Multisensor Wireless Pressure Microcatheter For Microvascular Function Assessment In ANOCA/INOCA Patients: A Prospective, Multicenter, Single-Group Target Value Study
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- Это наблюдательное исследование: исследуемое лечение участникам по протоколу не назначают.
- Кому может быть актуально
- Состояния в реестре: Coronary Microvascular Dysfunction (CMD). Базовые параметры: от 18 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- Китай
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Обзор
This study aims to evaluate the sensitivity and specificity of a multi-sensor wireless pressure microcatheter for the diagnosis of CMD in patients with ANOCA/INOCA, using quantitative myocardial perfusion imaging of cardiac magnetic resonance (CMR) as a reference.
Подробное описание
This is a prospective, multicenter, single-group target value study, which aims to enroll patients with angina symptoms or objective evidence of myocardial ischemia, whose coronary angiography visual assessment shows a diameter stenosis of \<50% and an FFR \>0.8 (or cRR \>0.89).
Первичные конечные точки
- Sensitivity and specificity of multi-sensor wireless pressure microcatheter for calculating Coronary Flow Reserve (CFR) in diagnosing Coronary Microvascular Dysfunction (CMD) [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
Вторичные конечные точки (5)
- Multi-sensor wireless pressure microcatheter calculation of CFR for diagnosing CMD: accuracy, positive predictive value, negative predictive value, Receiver Operating Characteristic Curve (ROC), and Area Under the Curve(AUC) [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
- Pearson correlation analysis and Bland-Altman bias analysis of CFR calculated by multi-sensor wireless pressure microcatheter and MPR calculated by CMR quantitative myocardial perfusion imaging. [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
- Pearson correlation analysis of multi-sensor wireless pressure microcatheter measurements of Tmn,rest and Tmn,hyper with CMR quantitative myocardial perfusion imaging measurements of MBFrest and MBFhyper. [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
- Multi-sensor wireless pressure microcatheter calculation of Index of Microcirculatory Resistance (IMR) for diagnosing CMD: accuracy, sensitivity, specificity, positive predictive value, negative predictive value, ROC, and AUC. [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
- Multi-sensor wireless pressure microcatheter calculation of Microvascular Resistance Reserve (MRR) for diagnosing CMD: accuracy, sensitivity, specificity, positive predictive value, negative predictive value, ROC, and AUC. [Срок оценки: Intraoperative period (day 0) and post-operative (days 1-7)]
Критерии участия
Критерии включения
- Age ≥ 18 years, gender not limited;
- Symptoms of angina pectoris, or objective evidence of myocardial ischemia (e.g., electrocardiogram, myocardial injury markers, etc.);
- Visual assessment of coronary angiography shows diameter stenosis < 50% and FFR > 0.8 (or cRR > 0.89);
- Microvascular function assessment is planned;
- Agree to participate in this clinical study and voluntarily sign the informed consent form.
Критерии исключения
- Acute myocardial infarction, PCI, CABG, or valvular surgery following angiography within the past 30 days;
- Severe valvular disease requiring surgical or interventional treatment;
- Chest pain with known non-ischemic causes (e.g., pericarditis, pulmonary hypertension, esophageal spasm);
- Contraindications to CMR (e.g., certain types of pacemakers or defibrillators, severe claustrophobia);
- Clear contraindications to adenosine and ATP use (e.g., second- or third-degree atrioventricular block, sick sinus syndrome, severe asthma, systolic blood pressure below 90 mmHg);
- Renal insufficiency (eGFR ≤ 45 mL/min/1.73 m2) or currently undergoing dialysis;
- Severe heart failure or LVEF ≤ 35%;
- Severe organ disease or life expectancy less than 2 years;
- Known to be participating in other drug or device clinical trials that have not yet met the primary endpoint;
- Other investigators deem the candidate unsuitable for this clinical trial.
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Модель наблюдения
- Когортное
Центры проведения
Китай · 5 центров
- Wang Jing Hospital Of CACMS(China Academy of Chinese Medical Sciences) — Пекин
- Cangzhou Central Hospital — Cangzhou
- Chengdu Second People's Hospital — Чэнду
- Beijing Anzhen Hospital.Capital Medical University — Пекин
- Peking University Third Hospital — Пекин
Идентификаторы
NCT: NCT07453381 · M20251062