Even though usingBNP/NT-proBNP levels could not guide electrical cardioversion by current evidence,our work's purpose is to suggest that BNP/NT-proBNP levels may help predict the riskof AF recurrence, thus helping the initial selection of suitable patients forelectrical cardioversion; therefore, further research is needed to explore such acutoff of BNP/NT-proBNP value to select the right patients for electricalcardioversion. The gene discussed is NPPB; the disease is atrial fibrillation.