The incidence of AFib has been widely associated with concomitant destruction of kidney physiology.9 The onset of AFib in patients with renal hypertension may reflect mechanical stress in the atrium.10 There is increasing recognition of the crucial role of the renin angiotensin aldosterone cascade in the etiology of cardio-renal hypertension, culminating AFib.11 Here, REN is linked to atrial fibrillation.