論文

国際誌
2021年3月22日

Prognostic Links Between OCT-Delineated Coronary Morphologies and Coronary Functional Abnormalities in Patients With INOCA.

JACC. Cardiovascular interventions
  • Kensuke Nishimiya
  • ,
  • Akira Suda
  • ,
  • Kento Fukui
  • ,
  • Kiyotaka Hao
  • ,
  • Jun Takahashi
  • ,
  • Yasuharu Matsumoto
  • ,
  • Kiyoto Mitsuishi
  • ,
  • Tasuku Watanabe
  • ,
  • Kazuma Ohyama
  • ,
  • Jun Sugisawa
  • ,
  • Satoshi Tsuchiya
  • ,
  • Koichi Satoh
  • ,
  • Tomohiko Shindo
  • ,
  • Shigeo Godo
  • ,
  • Yoku Kikuchi
  • ,
  • Takashi Shiroto
  • ,
  • Satoshi Yasuda
  • ,
  • Hiroaki Shimokawa

14
6
開始ページ
606
終了ページ
618
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jcin.2020.12.025

OBJECTIVES: Whether there are prognostic links between coronary morphologies and coronary functional abnormalities was examined in ischemia and nonobstructive coronary artery disease (INOCA) patients. BACKGROUND: Although INOCA has attracted much attention, little is known about the prognostic impact of coronary morphologies in this disorder. METHODS: A total of 329 consecutive INOCA patients were enrolled and underwent spasm provocation testing combined with lactate sampling for diagnosis of epicardial and microvascular spasm (MVS). On the basis of the functional tests, the patients were classified into 4 groups: a control group without epicardial spasm or MVS (n = 32), MVS alone (n = 51), diffuse spasm in ≥2 coronary segments (n = 204), and focal spasm in 1 segment (n = 42). In this population, optical coherence tomography imaging of the left anterior descending coronary artery was performed for evaluation of adventitial vasa vasorum (AVV) and intraplaque neovessels (IPN). Index of microcirculatory resistance was also measured. RESULTS: MVS frequently coexisted with diffuse (70%) and focal spasm (68%) with a good correlation between AVV and index of microcirculatory resistance (R = 0.353; p = 0.022). For a median follow-up of 1,043 days, focal spasm showed the worst prognosis (log rank p = 0.005), for which IPN was a significant prognostic factor. By contrast, diffuse spasm showed the greatest AVV with an intermediate prognosis. The prognostic value of INOCA was significantly enhanced by adding AVV and IPN to the physiological indices (area under the curve = 0.88 vs. 0.76; p = 0.048). CONCLUSIONS: These results provide the first evidence that there are important prognostic links between coronary morphologies (evaluated by optical coherence tomography) and coronary functional abnormalities in patients with INOCA, indicating the importance of both evaluations in this population.

リンク情報
DOI
https://doi.org/10.1016/j.jcin.2020.12.025
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33736768
ID情報
  • DOI : 10.1016/j.jcin.2020.12.025
  • PubMed ID : 33736768

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