Only three out of 12 RIPC‐liver‐treated and five out of 12 RIPC‐limb‐treated Kcne2‐/‐ mice exhibited arrhythmia (P < 0.001 vs. Kcne2‐/‐ control mice), while the remainder remained in sinus rhythm (Fig. 3A). Here, KCNE2 is linked to Arrhythmia.