AUTHOR=Mao Zhi-Jie , Wen Wei-Wei , Han Yi-Chen , Dong Wei-hua , Shen Li-juan , Huang Zhou-Qing , Xie Qiang-Li TITLE=Use of the cardiopulmonary coupling index based on refined composite multiscale entropy for prognostication of acute type A aortic dissection JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=Volume 10 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2023.1126889 DOI=10.3389/fcvm.2023.1126889 ISSN=2297-055X ABSTRACT=Objectives The aim of this study is to assess the influence of cardiopulmonary coupling (CPC) based on RCMSE on the prediction of complications and death in patients with acute type A aortic dissection (ATAAD). Background The cardiopulmonary system may be nonlinearly regulated, and its coupling relationship with postoperative risk stratification in ATAAD patients has not been studied. Methods This study was a single-center, prospective cohort study (ChiCTR1800018319). We enrolled 39 patients with ATAAD. The outcomes were in‐hospital complications and all-cause readmission or death at 2 years. Results Of the 39 participants, 16 (41.0%) developed complications in the hospital, and 15 (38.5%) died or were readmitted to the hospital during the two-year follow-up. When CPC-RCMSEwas used to predict in‐hospital complications in ATAAD patients, the AUC was 0.853(p<0.001). When CPC-RCMSE was used to predict all-cause readmission or death at 2 years, the AUC was 0.731 (p<0.05). After adjusting for age, sex, ventilator support (days), and specialcare time (days), CPC-RCMSE remained an independent predictor of in‐hospital complications in patients with ATAAD (adjusted OR 0.8 (95% CI, 0.68–0.94)). Conclusion CPC-RCMSE was an independent predictor of in‐hospital complications and all-cause readmission or death in patients with ATAAD.