Unique ID issued by UMIN | UMIN000033357 |
---|---|
Receipt number | R000038024 |
Scientific Title | FORTUNA(Evaluation of Fractional Flow Reserve Calculated by Computed Tomography Coronary Angiography in Patients undergoing Transcatheter Aortic Valve Replacement) |
Date of disclosure of the study information | 2018/09/01 |
Last modified on | 2020/01/14 12:39:08 |
FORTUNA(Evaluation of Fractional Flow Reserve Calculated by Computed Tomography Coronary Angiography in Patients undergoing Transcatheter Aortic Valve Replacement)
FORTUNA
FORTUNA(Evaluation of Fractional Flow Reserve Calculated by Computed Tomography Coronary Angiography in Patients undergoing Transcatheter Aortic Valve Replacement)
FORTUNA
Japan |
severe aortic stenosis
Cardiology |
Others
NO
It is still to be elucidated whether FFRct calculated from the preoperative CCTA data using computational flow dynamics is useful in patients with severe AS who plan to undergo TAVR as a predictor for myocardial ischemia and intraoperative complications.
The objective of this study is to evaluate the relationship between pre-TAVR FFRct and post-TAVR invasive FFR to better understand the impact that non-administration of nitrates has on computed FFR values. In addition, this study also aims to evaluate the relationship between pre- and post-TAVR resting physiology (iFR) and post-TAVR invasive FFR in association with pre- and post-TAVR FFRct to better understand the impact of aortic valve stenosis on the resting coronary physiology.
If the utility of FFRct can be established in patients with severe AS who plan to undergo TAVR based on the results of this research study, the necessity of the intervention in treatment of CAD prior to TAVR and the perioperative risk of TAVR can be evaluated, leading to the marked clinical significance.
Efficacy
Exploratory
Pragmatic
Not applicable
A cut-off value for FFRct that can estimate FFR of <0.80 in patients with severe AS
(1)A cut-off value for pre-TAVR iFR that can estimate FFR of <0.80 in patients with severe AS
(2)Regression and correlation coefficient of FFRct before TAVR and after TAVR
(3)Regression and correlation coefficient of iFR before TAVR and after TAVR
(4)Stenosis degree in coronary angiography before TAVR predicting FFR: <0.80 in severe AS patients
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
1
Treatment
Device,equipment |
The intervention tested in this study is to measure FFR using a guide wire that is capable of sensing pressure following TAVR. After the pressure gradient across the aortic valve is relieved by TAVR, it is considered that FFR can evaluate myocardial ischemia in a safe and accurate manner and can be used as the standard in contrast to pre and post-TAVR FFRct. Another intervention tested in this study is to measure iFR before and after TAVR to assess its potential to accurately estimate myocardial ischemia.
20 | years-old | <= |
Not applicable |
Male and Female
Patients who meet all the following criteria will be included in the study:
1)Among patients who have undergone CCTA prior to TAVR, those with moderate stenotic lesions (30 to <70%) or severe stenotic lesions on CT who are candidates for PCI following TAVR
2)Patients aged 20 years or older at the time of diagnosis
Patients who meet any one of the following criteria will be excluded from this study:
1)Patients who were implanted with metal stents in the left main trunk,
2)Patients with stenosis of >30% in the left main trunk who were implanted with at least one metal stent in the vessel(s) of the left coronary circulation,
3)Patients who were implanted with metal stents in at least 2 vessels of the coronary circulation,
4)Patients who requested withdrawal of consent for participation in this research study after providing their consent,
5)Patients who underwent coronary artery bypass surgery,
6)Patients with coronary artery chronic total occlusion,
7)Patients who developed acute myocardial infarction in the past 2 months,
8)Patients whose CCTA was determined to be unreadable during its evaluation at the study site because of the presence of artifacts which were severe enough to cause problems with the angiogram,
9)Patients who were judged by the principal investigator to be unsuitable for the study for other reasons
25
1st name | |
Middle name | |
Last name | Hiromasa Otake |
Graduate School of Medicine, Kobe University
Division of Cardiovascular Medicine, Department of Internal Medicine
7-5-2 Kusunoki-cho, Chuo-ku, Kobe city, Hyogo
078-382-5846
hotake@med.kobe-u.ac.jp
1st name | |
Middle name | |
Last name | Ryo Takeshige |
Graduate School of Medicine, Kobe University
Division of Cardiovascular Medicine, Department of Internal Medicine
7-5-2 Kusunoki-cho, Chuo-ku, Kobe city, Hyogo
078-382-5846
takeshige.kobe@gmail.com
Division of Cardiovascular Medicine, Department of Internal Medicine, Graduate School of Medicine, Kobe University
none
Other
NO
2018 | Year | 09 | Month | 01 | Day |
Unpublished
Open public recruiting
2020 | Year | 09 | Month | 01 | Day |
2018 | Year | 10 | Month | 01 | Day |
2018 | Year | 10 | Month | 25 | Day |
2022 | Year | 03 | Month | 31 | Day |
2018 | Year | 07 | Month | 10 | Day |
2020 | Year | 01 | Month | 14 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000038024