Comment on

• Intraoperative echocardiography is indicated in high-risk coronary artery bypass grafting.

  Savage RM, Lytle BW, Aronson S, Navia JL, Licina M, Stewart WJ, Starr NJ, Loop FD. Savage RM, et al. Ann Thorac Surg. 1997 Aug;64(2):368-73; discussion 373-4. doi: 10.1016/S0003-4975(97)00612-7. Ann Thorac Surg. 1997. PMID: 9262577
• Coronary artery problems during homograft aortic valve replacement: role of transesophageal echocardiography.

  Koh TW, Ferdinand FD, Jin XY, Gibson DG, Pepper JR. Koh TW, et al. Ann Thorac Surg. 1997 Aug;64(2):533-5. doi: 10.1016/S0003-4975(97)00528-6. Ann Thorac Surg. 1997. PMID: 9262608