Fig. 2 Coronary angiography in A) left and B) right anterior oblique projections show no significant coronary artery blockage or spasm. The linear displacement of contrast medium in the proximal segment of the right coronary artery is due to contrast streaming.

A = Judkins right 4 catheter; B = quadripolar electrophysiologic catheter at the high right atrium; C = two 7F sheaths; D = right coronary artery; E = left anterior descending coronary artery; F = decapolar electrophysiologic catheter in the coronary sinus; G = left circumflex coronary artery; H = Judkins left 4 catheter