- 著者
 
          - 
             
             Yoshinori Katsumata
             
             Fumiya Sano
             
             Takayuki Abe
             
             Tomoyoshi Tamura
             
             Taishi Fujisawa
             
             Yasuyuki Shiraishi
             
             Shun Kohsaka
             
             Ikuko Ueda
             
             Koichiro Homma
             
             Masaru Suzuki
             
             Shigeo Okuda
             
             Yuichiro Maekawa
             
             Eiji Kobayashi
             
             Shingo Hori
             
             Junichi Sasaki
             
             Keiichi Fukuda
             
             Motoaki Sano
             
          
 
          
          
          - 出版者
 
          - The Japanese Circulation Society
 
          
          
          - 雑誌
 
          - Circulation Journal (ISSN:13469843)
 
          
          
          - 巻号頁・発行日
 
          - vol.81, no.7, pp.940-947, 2017-06-23 (Released:2017-06-23)
 
          
          
          - 参考文献数
 
          - 28
 
          
          
          - 被引用文献数
 
          - 
             
             18
             
             
             49
             
             
          
        
 
        
        
        Background:Hydrogen gas inhalation (HI) reduced infarct size and mitigated adverse left ventricular (LV) remodeling in a rat model of acute myocardial infarction (AMI). We designed a prospective, open-label, rater-blinded clinical pilot study in patients experiencing ST-elevated MI (STEMI).Methods and Results:The 20 patients with an initial diagnosis of STEMI were assigned to either an HI group (1.3% H2with 26% oxygen) or a control group (26% oxygen). There were no HI-related severe adverse events. In the full analysis set, the cardiac salvage index as evaluated using cardiac magnetic resonance imaging at 7 days after primary percutaneous coronary intervention (PCI), showed no significant between-group difference (HI: 50.0±24.3%; control: 60.1±20.1%; P=0.43). However, the improvement from day 7 in the HI group was numerically greater than that in the control group in some of the surrogate outcomes at 6-month follow-up, including the LV stroke volume index (HI: 9.2±7.1 mL/m2; control: −1.4±7.2 mL/m2; P=0.03) and the LV ejection fraction (HI: 11.0%±9.3%; control: 1.7%±8.3%; P=0.11).Conclusions:The first clinical study has shown that HI during PCI is feasible and safe and may also promote LV reverse remodeling at 6 months after STEMI. The study was not powered to test efficacy and a further large-scale trial is warranted. (Clinical trials registration: UMIN00006825)