A technique avoiding cardioplegia delivery complications: a case using systemic hyperkalemia cardiopulmonary bypass combined with circulatory arrestTomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada and Takanori TanakaJ Extra Corpor Technol, 56 4 (2024) 207-210DOI: https://doi.org/10.1051/ject/2024027