Published in:
17-03-2022 | Heart Failure | Original Article
Clinical significance of 123I-BMIPP washout rate in patients with uncertain chronic heart failure
Authors:
Chihiro Aoshima, Shinichiro Fujimoto, Ayako Kudo, Yuko O. Kawaguchi, Kazuhisa Takamura, Yuya Matsue, Takao Kato, Yoshifumi Kawamura, Satoshi Kimura, Yuki Kamo, Yui O. Nozaki, Daigo Takahashi, Nobuo Tomizawa, Makoto Hiki, Takatoshi Kasai, Shuko Nojiri, Hideyuki Miyauchi, Ken-ichi Hirano, Kazunori Shimada, Koji Murakami, Tohru Minamino
Published in:
European Journal of Nuclear Medicine and Molecular Imaging
|
Issue 9/2022
Login to get access
Abstract
Background
Recently, triglyceride deposit cardiomyovasculopathy (TGCV) with defective intracellular lipolysis was found to be a disease that causes heart failure. As a diagnostic criterion for TGCV, an Iodaine-123-β-methyl iodophenyl-pentadecanoic acid washout rate (BMIPP WOR) of < 10% is used, but its clinical significance in patients with heart failure remains to be clarified.
Methods
In 62 hospitalized patients with chronic heart failure, 123I-BMIPP myocardial single-photon emission computed tomography (SPECT) was performed predischarge state. The prevalence of TGCV was investigated. Subsequently, follow-up was conducted for ≥ 90 days (mean: 724.6 ± 392.7 days), and the association between the BMIPP WOR and cardiac events was examined, establishing all-cause mortality and admission due to heart failure as endpoints.
Results
Of the 62 patients, the WOR was < 10% in 41 (66.1%). Of these, 26 (41.9%) were diagnosed with definite TGCV. Furthermore, cardiac events were noted in 12 patients (19.4%). Analysis with Cox proportional hazards models showed that the BMIPP WOR < 4.5% was a significant event-predicting factor [HR 4.29, 95% CI: 1.20–16.87; p = 0.0245]. On a Kaplan–Meier curve, the WOR was 4.5%; there was a significant difference in the incidence of events (p = 0.0298).
Conclusion
In the predischarge state of heart failure, 123I-BMIPP myocardial SPECT was performed. In approximately 40% of the patients, a diagnosis of TGCV was made. The results suggested that the BMIPP WOR is useful for predicting the prognosis of chronic heart failure patients regardless of TGCV.