Det anbefales, at patienter, som behandles med ivabradin, kontrolleres regelmæssigt for atrieflimren (kronisk eller paroksystisk), inklusive EKG- registrering, hvis klinisk nødvendigt (fx i tilfælde af accelereret angina, hjertebanken eller uregelmæssig puls).
It is recommended to regularly clinically monitor ivabradine treated patients for the occurrence of atrial fibrillation (sustained or paroxysmal), which should also include ECG monitoring if clinically indicated (e. g. in case of exacerbated angina, palpitations, irregular pulse).