Recurrent cardiac tamponade following unusual micro leak after successful closure of the primary leak.

Although uncommon, coronary artery perforation is one of the most dreadful complications of percutaneous coronary intervention, which requires prompt, aggressive, and effective management. Perforations induced by coronary guidewires are usually located in the distal part of a coronary artery and commonly managed with embolization. This is an unusual case report of guidewire-induced coronary perforation with recurrent cardiac tamponade, which was managed successfully by coil embolization of both ipsilateral and contralateral coronary arteries via transradial approach.

Aorta-right atrial tunnel.

Aorta-right atrial tunnel is a vascular channel that originates from one of the sinuses of Valsalva and terminates in either the superior vena cava or the right atrium. The tunnel is classified as anterior or posterior, depending upon its course in relation to the ascending aorta. An origin above the sinotubular ridge differentiates the tunnel from an aneurysm of the sinus of Valsalva, and the absence of myocardial branches differentiates it from a coronary-cameral fistula.