Unique ID issued by UMIN | UMIN000029891 |
---|---|
Receipt number | R000034145 |
Scientific Title | Optimization of adenosine stress for myocardial perfusion imaging. |
Date of disclosure of the study information | 2017/11/08 |
Last modified on | 2023/05/17 12:07:28 |
Optimization of adenosine stress for myocardial perfusion imaging.
Optimization of adenosine stress
Optimization of adenosine stress for myocardial perfusion imaging.
Optimization of adenosine stress
Japan |
Ischemic heart disease
Radiology |
Others
NO
To investigate if accurate pharmacologic stress myocardial perfusion imaging is possible under influence of caffeine by increasing adenosine dose.
Efficacy
Coronary sinus blood flow according to the amount of adenosine.
Interventional
Single arm
Non-randomized
Open -no one is blinded
Self control
1
Diagnosis
Medicine |
MR coronary sinus flow measurement during adenosine stress will be performed before and after intake of 166mg of caffeine. Amount of adenosine will be increased stepwise from 120 microgram/kg/min to 210 microgram/kg/min until increase of heart rate by 10 bpm or blood pressure decrease of 10 mmHg is observed. The intervention is performed only on the 1 day of MR imaging.
20 | years-old | <= |
39 | years-old | >= |
Male and Female
Healthy normal volunteer
Claustrophobia
Contraindication of adenosine including AV block
Pregnant, maternal and lactating woman
20
1st name | Hajime |
Middle name | |
Last name | Sakuma |
Mie University Hospital
Department of Radiology
5148507
2-174 Edobashi, Tsu, Mie, Japan
059-231-5029
kakuya@clin.medic.mie-u.ac.jp
1st name | Kakuya |
Middle name | |
Last name | Kitagawa |
Mie University Hospital
Department of Radiology
514-8507
2-174 Edobashi, Tsu, Mie, Japan
059-231-5029
kakuya@clin.medic.mie-u.ac.jp
Mie University Hospital
Mie University Hospital
Self funding
Medical Research Ethics Committee, Mie University Hospital
2-174 Edobashi, Tsu, Mie, Japan
059-232-1111
s-kenkyu@mo.medic.mie-u.ac.jp
NO
2017 | Year | 11 | Month | 08 | Day |
-
Unpublished
-
20
Myocardial blood flow (MBF) during caffeine intake and restriction was evaluated using MRI. The adenosine stress was increased stepwise until an increase in heart rate of more than 10 bpm, which is a common index of stress, was achieved. The index was achieved in all subjects even when caffeine was consumed, but the number of subjects who required increased adenosine was significantly higher than when caffeine was restricted. Mean MBF was significantly lower during caffeine intake than during restriction.
2023 | Year | 05 | Month | 17 | Day |
Healthy volunteers (n=20, 10 females, age 30 +/- 3 years)
Completed the planned number of participants despite delays due to the COVID-19 pandemic.
No adverse events
Adenosine stress will be increased stepwise under caffeine administration to evaluate whether an increase in myocardial blood flow comparable to that under caffeine restriction can be obtained.
Completed
2015 | Year | 04 | Month | 08 | Day |
2015 | Year | 07 | Month | 08 | Day |
2017 | Year | 12 | Month | 26 | Day |
2020 | Year | 12 | Month | 16 | Day |
2020 | Year | 12 | Month | 16 | Day |
2020 | Year | 12 | Month | 16 | Day |
2022 | Year | 03 | Month | 31 | Day |
2017 | Year | 11 | Month | 08 | Day |
2023 | Year | 05 | Month | 17 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000034145