1. Coincidence between spontaneous and inducible coronary spasm: acetylcholine test is clinically valued for diagnosing coronary spasm

   • Shozo Sueda
   • Tomoki Sakaue

   Original Article 02 January 2021 Pages: 749 - 755

   

2. Clinical significance of microvessels detected by in vivo optical coherence tomography within human atherosclerotic coronary arterial intima: a study with multimodality intravascular imagings

   • Toshihiko Nishida
   • Takafumi Hiro
   • Yasuo Okumura

   Original Article 06 January 2021 Pages: 756 - 765

   

3. Improvements in exercise tolerance with an exercise intensity above the anaerobic threshold in patients with acute myocardial infarction

   • Satoshi Tagashira
   • Satoshi Kurose
   • Yutaka Kimura

   Original Article 23 January 2021 Pages: 766 - 774

   

4. Impaired coronary flow reserve evaluated by phase-contrast cine magnetic resonance imaging in patients with atrial fibrillations

   • Yoichiro Sugimoto
   • Shingo Kato
   • Kouichi Tamura

   Original Article 23 January 2021 Pages: 775 - 781

   

5. Association between acute myocardial infarction-to-cardiac rupture time and in-hospital mortality risk: a retrospective analysis of multicenter registry data from the Cardiovascular Research Consortium-8 Universities (CIRC-8U)

   • Kihei Yoneyama
   • Yuki Ishibashi
   • Yoshihiro J. Akashi

   Original Article Open access 16 January 2021 Pages: 782 - 789

   

6. Independent predictors of discordance between the resting full-cycle ratio and fractional flow reserve

   • Reiji Goto
   • Hiroaki Takashima
   • Tetsuya Amano

   Original Article 05 January 2021 Pages: 790 - 798

   

7. Impact of the clinical frailty scale on clinical outcomes and bleeding events in patients with ST-segment elevation myocardial infarction

   • Masanari Kurobe
   • Yasuhiro Uchida
   • Toyoaki Murohara

   Original Article 07 January 2021 Pages: 799 - 808

   

8. Validation of Global Limb Anatomical Staging System (GLASS) in patients with hemodialysis and Chronic Limb-Threatening Ischemia after endovascular treatment

   • Takahiro Tokuda
   • Yasuhiro Oba
   • Tatsuya Ito

   Original Article 02 January 2021 Pages: 809 - 817

   

9. Efficacy of optical frequency domain imaging in detecting peripheral artery disease: the result of a multi-center, open-label, single-arm study

   • Hiroyuki Kawamori
   • Akihide Konishi
   • Ken-ichi Hirata

   Original Article 22 January 2021 Pages: 818 - 826

   

10. Assessment of visit-to-visit variability in systolic blood pressure over 5 years and phasic left atrial function by two-dimensional speckle-tracking echocardiography

    • Shinichiro Tanaka
    • Tomonori Segawa
    • Okura Hiroyuki

    Original Article 19 January 2021 Pages: 827 - 835

    

11. Clinical effectiveness and adverse events associated with tolvaptan in patients above 90 years of age with acute decompensated heart failure

    • Yusuke Morita
    • Akihiro Endo
    • Kazuaki Tanabe

    Original Article 02 February 2021 Pages: 836 - 843

    

12. Effects of whole-body neuromuscular electrical stimulation device on hemodynamics, arrhythmia, and sublingual microcirculation

    • Megumi Hoshiai
    • Kaori Ochiai
    • Takanori Yasu

    Original Article Open access 06 February 2021 Pages: 844 - 852

    

13. Left and right atrial appendage functional features as predictors for voltage-defined left atrial remodelling in patients with long-standing persistent atrial fibrillation

    • Radoslaw Marek Kiedrowicz
    • Maciej Wielusinski
    • Jaroslaw Kazmierczak

    Original Article Open access 02 January 2021 Pages: 853 - 862

    

14. Electrocardiographic features of arrhythmogenic right ventricular cardiomyopathy in school-aged children

    • Mitsuhiro Fujino
    • Aya Miyazaki
    • Hideo Ohuchi

    Original Article 29 January 2021 Pages: 863 - 873

    

15. Immediate electrophysiological characteristics following modified thoracoscopic ablation via unilateral approach for non-valvular atrial fibrillation

    • Nan Ma
    • Shiao Ding
    • Ju Mei

    Original Article 29 March 2021 Pages: 874 - 881

    

16. Safe and effective transvenous lead extraction for elderly patients utilizing non-laser and laser tools: a single-center experience in Japan

    • Ayako Okada
    • Hiroaki Tabata
    • Koichiro Kuwahara

    Original Article 04 January 2021 Pages: 882 - 889

    

17. Investigating the cause of hemolysis in patients supported by a pulsatile ventricular assist device

    • Takeaki Harada
    • Yoshihisa Tanoue
    • Akira Shiose

    Original Article 08 March 2021 Pages: 890 - 898

    

18. Continuous measurement of surface electrical potentials from transplanted cardiomyocyte tissue derived from human-induced pluripotent stem cells under physiological conditions in vivo

    • Hiroshi Goto
    • Hyoe Komae
    • Tatsuya Shimizu

    Original Article 08 March 2021 Pages: 899 - 909

    

19. Evolution of patients with chronic thromboembolic pulmonary hypertension treated by balloon pulmonary angioplasty, according to their anticoagulant regimens

    • Nobutaka Ikeda
    • Katsushi Amemiya
    • Masato Nakamura

    Short Communication 13 February 2021 Pages: 910 - 915