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  • Title: Robotic-assisted off-pump sole transmyocardial revascularization: case report.
    Author: Wehberg KE, Todd JC, Julian JS, Ogburn NL, Klopp EH, Buchness MP.
    Journal: Heart Surg Forum; 2004 Apr 01; 7(2):E130-1. PubMed ID: 15138089.
    Abstract:
    Thoracoscopic transmyocardial revascularization (TMR) has been recently demonstrated. We report 2 patients who underwent robotic-assisted thoracoscopic off-pump sole TMR. A 2-inch minimally invasive left anterolateral thoracotomy was made. Pericardial dissection and TMR were performed in an open manner facilitated by improved visualization using voice-activated robotic-assisted thoracoscopy (AESOP, Computer Motion, Santa Barbara, CA, USA). Patient 1 was a 73-year-old man with class IV angina who underwent coronary artery bypass grafting (CABG) x4 20 years earlier. Cardiac catheterization revealed occluded grafts, no native vessels that were amenable to percutaneous coronary intervention (PCI) or CABG, and an ejection fraction (EF) of 55%. Forty-five Holmium-Yag (CardioGenesis, Foothill Ranch, CA, USA) laser channels were created in the left ventricular wall. Total operating room (OR) time was 93 minutes. He was extubated in the OR and was discharged from the intensive care unit (ICU) in 18 hours and from the hospital on the second postoperative day angina free. Patient 2 was a 48-year-old woman with class IV angina who had undergone CABG x6 3 years earlier but who had persistent chest pain following the revascularization. After 12 cardiac readmissions in 1 year, including multiple PCIs, a recent catheterization showed patent grafts except for the circumflex branches and an EF of 45%. Forty-six channels were created in the left ventricle in a similar fashion. OR time was 62 minutes, ICU time was 20 hours, and postoperative length of stay was 2 days. The patient also was angina free at discharge. This report suggests that robotic-assisted thoracoscopy provides enhanced visualization and efficient delivery during off-pump sole TMR, and this technique may be associated with reduced operative times and improved recovery time.
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