AUTHOR=Huang Yangsi , Ouyang Chengdi , He Fang , Zhong Yu , Liu Guofeng , Lu Yizhi , Chen Yanhua TITLE=Bilateral parasternal and rectus sheath blocks reduce pain post-cardiac surgery: a pilot trial JOURNAL=Frontiers in Surgery VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2025.1526890 DOI=10.3389/fsurg.2025.1526890 ISSN=2296-875X