KCNJ11 and paroxysmal tachycardia: SMR analysis indicated that lowered expression of KCNJ11 was related to a decreased paroxysmal tachycardia risk (OR: 1.05, 95% CI: 1.01, 1.08, PSMR = 0.010), further confirming the role of KCNJ11 in paroxysmal tachycardia.