An 85-year-old man, with a background cardiac history of myocardial infarction and aortic stenosis, presented with a shortness of breath and central chest pain, radiating to the right arm and back. A coronary angiogram demonstrated a narrowing of the proximal right coronary artery (RCA), mid left anterior descending artery (LAD) and proximal first diagonal (D1) branch. He underwent an aortic valve replacement and three vessel bypass. The left internal mammary artery was anastomosed to the LAD, venous grafts (VG) to the D1 and RCA. He underwent emergency sternotomy 10 days later, for pericardial tamponade, which demonstrated bleeding from two sites: a slit in the VG to the D1 which was 2 cm from the aortic end and from the lateral angle of the aortotomy. The VG slit was thought to be secondary to trauma from the emergency bedside sternotomy. Post-operatively patient developed respiratory compromise, renal impairment and a sternal wound infection. Eight days later, he became hypotensive, with oozing from the sternal wound. A further sternotomy identified the source of bleeding to be from the previous site of injury to the VG. It was elected to resect the VG, as repairing it would have severely compromised the luminal diameter.Further sternal bleeding occurred 25 days after the third operation, but was haemodynamically stable. A computer tomography (CT) of the chest demonstrated a pseudoaneurysm from the aortic stump of the VG to D1 (Fig. 1A,B). Under CT guidance a spinal needle was inserted into the pseudoaneurysm sac parasternally. 1.2 mls of thrombin (Fig. 2B). Ten days after the thrombin injection, the patient developed further bleeding from the sternal wound. CT of the chest demonstrated that the pseudoaneurysm had recurred. A repeat thrombin injection was undertaken. A spinal needle was placed into the sac of the pseudowas injected ( Fig. 2A). Post procedure CT scan showed that the pseudoaneurysm had thrombosed JBR-BTR, 2012, 95: 261-262.
MANAGING CORONARY ARTERY VEIN BYPASS GRAFT STUMP PSEUDO -