Masahiro Hada MD, PhD , Carlos Collet MD, PhD , Tatyana Storozhenko MD, PhD , Daniel Munhoz MD, PhD , Adriaan Wilgenhof MD , Alejandro Gutiérrez-Barrios MD, PhD , Annemiek de Vos MD , Branko Beleslin MD, PhD , Colin Berry MD, PhD , Divaka Perera MD , Fernando Rivero MD , Frederic Bouisset MD, PhD , Giovanni Luigi De Maria MD, PhD , Grigoris Karamasis MD, PhD , Jacob Lønborg MD, PhD , Javier Escaned MD, PhD , Kazumasa Ikeda MD , Kevin Carson MD , Klio Konstantinou MBBS , Mark Mariathas BM , Bernard De Bruyne MD, PhD
{"title":"欧洲微循环阻力和绝对流量团队的基本原理和设计:欧洲工艺注册。","authors":"Masahiro Hada MD, PhD , Carlos Collet MD, PhD , Tatyana Storozhenko MD, PhD , Daniel Munhoz MD, PhD , Adriaan Wilgenhof MD , Alejandro Gutiérrez-Barrios MD, PhD , Annemiek de Vos MD , Branko Beleslin MD, PhD , Colin Berry MD, PhD , Divaka Perera MD , Fernando Rivero MD , Frederic Bouisset MD, PhD , Giovanni Luigi De Maria MD, PhD , Grigoris Karamasis MD, PhD , Jacob Lønborg MD, PhD , Javier Escaned MD, PhD , Kazumasa Ikeda MD , Kevin Carson MD , Klio Konstantinou MBBS , Mark Mariathas BM , Bernard De Bruyne MD, PhD","doi":"10.1016/j.ahj.2025.08.018","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><div>Coronary microvascular dysfunction (CMD) is increasingly recognized as an important cause of anginal symptoms and poor outcomes. Angina with nonobstructive coronary arteries (ANOCA) is often related to CMD. While physiological assessment of microcirculatory function by coronary bolus thermodilution is widely practiced, more precise and reproducible methodology as well as systematic assessment are necessary. Recently, absolute flow measurements by coronary continuous thermodilution and the concept of Microvascular Resistance Reserve (MRR) have been introduced.</div></div><div><h3>Aim</h3><div>The European microCirculatory Resistance and Absolute Flow Team (EuroCRAFT) registry aims to compare major adverse cardiac and cerebrovascular events (MACCE)-rates in patients with and without CMD based on MRR at 1-year follow-up.</div></div><div><h3>Methods</h3><div>This prospective international, investigator-initiated, multicenter study is enrolling patients with stable chest pain suggestive of angina and nonobstructive epicardial coronary arteries on invasive coronary angiography, defined as fractional flow reserve >0.80. Patients will undergo coronary angiography and microvascular assessment using bolus and continuous thermodilution methods. The primary endpoint is to compare the rate of MACCE in patients with and without CMD assessed with MRR at 1 year. Based on the sample size estimation, 671 patients are initially planned for enrollment.</div><div>We hypothesize that coronary continuous thermodilution-derived MRR has superior prognostic value for MACCE at 1 year compared to bolus thermodilution-derived microvascular metrics.</div></div><div><h3>Results</h3><div>Study recruitment started in September 2022 and has been completed in May 2025, resulting in a total of 678 patients enrolled.</div></div>","PeriodicalId":7868,"journal":{"name":"American heart journal","volume":"291 ","pages":"Pages 136-143"},"PeriodicalIF":3.5000,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rationale and design of European microcirculatory resistance and absolute flow team: The Euro-CRAFT registry\",\"authors\":\"Masahiro Hada MD, PhD , Carlos Collet MD, PhD , Tatyana Storozhenko MD, PhD , Daniel Munhoz MD, PhD , Adriaan Wilgenhof MD , Alejandro Gutiérrez-Barrios MD, PhD , Annemiek de Vos MD , Branko Beleslin MD, PhD , Colin Berry MD, PhD , Divaka Perera MD , Fernando Rivero MD , Frederic Bouisset MD, PhD , Giovanni Luigi De Maria MD, PhD , Grigoris Karamasis MD, PhD , Jacob Lønborg MD, PhD , Javier Escaned MD, PhD , Kazumasa Ikeda MD , Kevin Carson MD , Klio Konstantinou MBBS , Mark Mariathas BM , Bernard De Bruyne MD, PhD\",\"doi\":\"10.1016/j.ahj.2025.08.018\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Introduction</h3><div>Coronary microvascular dysfunction (CMD) is increasingly recognized as an important cause of anginal symptoms and poor outcomes. Angina with nonobstructive coronary arteries (ANOCA) is often related to CMD. While physiological assessment of microcirculatory function by coronary bolus thermodilution is widely practiced, more precise and reproducible methodology as well as systematic assessment are necessary. Recently, absolute flow measurements by coronary continuous thermodilution and the concept of Microvascular Resistance Reserve (MRR) have been introduced.</div></div><div><h3>Aim</h3><div>The European microCirculatory Resistance and Absolute Flow Team (EuroCRAFT) registry aims to compare major adverse cardiac and cerebrovascular events (MACCE)-rates in patients with and without CMD based on MRR at 1-year follow-up.</div></div><div><h3>Methods</h3><div>This prospective international, investigator-initiated, multicenter study is enrolling patients with stable chest pain suggestive of angina and nonobstructive epicardial coronary arteries on invasive coronary angiography, defined as fractional flow reserve >0.80. Patients will undergo coronary angiography and microvascular assessment using bolus and continuous thermodilution methods. The primary endpoint is to compare the rate of MACCE in patients with and without CMD assessed with MRR at 1 year. 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Rationale and design of European microcirculatory resistance and absolute flow team: The Euro-CRAFT registry
Introduction
Coronary microvascular dysfunction (CMD) is increasingly recognized as an important cause of anginal symptoms and poor outcomes. Angina with nonobstructive coronary arteries (ANOCA) is often related to CMD. While physiological assessment of microcirculatory function by coronary bolus thermodilution is widely practiced, more precise and reproducible methodology as well as systematic assessment are necessary. Recently, absolute flow measurements by coronary continuous thermodilution and the concept of Microvascular Resistance Reserve (MRR) have been introduced.
Aim
The European microCirculatory Resistance and Absolute Flow Team (EuroCRAFT) registry aims to compare major adverse cardiac and cerebrovascular events (MACCE)-rates in patients with and without CMD based on MRR at 1-year follow-up.
Methods
This prospective international, investigator-initiated, multicenter study is enrolling patients with stable chest pain suggestive of angina and nonobstructive epicardial coronary arteries on invasive coronary angiography, defined as fractional flow reserve >0.80. Patients will undergo coronary angiography and microvascular assessment using bolus and continuous thermodilution methods. The primary endpoint is to compare the rate of MACCE in patients with and without CMD assessed with MRR at 1 year. Based on the sample size estimation, 671 patients are initially planned for enrollment.
We hypothesize that coronary continuous thermodilution-derived MRR has superior prognostic value for MACCE at 1 year compared to bolus thermodilution-derived microvascular metrics.
Results
Study recruitment started in September 2022 and has been completed in May 2025, resulting in a total of 678 patients enrolled.
期刊介绍:
The American Heart Journal will consider for publication suitable articles on topics pertaining to the broad discipline of cardiovascular disease. Our goal is to provide the reader primary investigation, scholarly review, and opinion concerning the practice of cardiovascular medicine. We especially encourage submission of 3 types of reports that are not frequently seen in cardiovascular journals: negative clinical studies, reports on study designs, and studies involving the organization of medical care. The Journal does not accept individual case reports or original articles involving bench laboratory or animal research.