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Published on: June 2, 2018
Hybrid Revascularization With Robotic Totally Endoscopic Coronary Bypass and Stents: What Are the Outcomes When The
Sarah Nisivaco1, Hiroto Kitahara1, Sandeep Nathan1
1Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois.
Insights
Incomplete hybrid coronary revascularization (HCR) using robotic totally endoscopic coronary artery bypass (TECAB) did not impact midterm outcomes. Omitting percutaneous coronary intervention (PCI) in HCR is safe when dominant left-sided targets are addressed.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
- Minimally Invasive Cardiac Surgery
Background:
- Hybrid coronary revascularization (HCR) combines coronary artery bypass grafting (CABG) with percutaneous coronary intervention (PCI) for complete revascularization.
- Incomplete HCR, where PCI is not completed, can occur in patients undergoing robotic beating-heart totally endoscopic coronary artery bypass (TECAB).
- Outcomes for patients with incomplete HCR after robotic TECAB are not well-established.
Purpose of the Study:
- To evaluate the outcomes of patients undergoing robotic TECAB-based HCR where the PCI component was not completed.
- To compare early and midterm outcomes between patients who completed PCI and those who did not as part of HCR.
Main Methods:
- Retrospective analysis of 418 intent-to-treat HCR patients undergoing robotic TECAB (July 2013 - June 2025).
- Comparison of outcomes between 332 patients who completed PCI and 85 who did not, using propensity-score matching to create 82 balanced pairs.
- Assessment of early outcomes, perioperative variables, midterm survival, and freedom from major adverse cardiac and cerebrovascular events (MACCE).
Main Results:
- Early outcomes and survival at 5 years were similar between complete and incomplete PCI groups (cardiac survival: 95.7% vs 95.4%).
- No significant differences in freedom from cardiac mortality, myocardial infarction, repeat revascularization, or MACCE were observed.
- Incomplete PCI most frequently involved the right coronary artery or non-dominant circumflex lesions; no dominant left-sided targets were left unaddressed.
Conclusions:
- Omission of PCI in HCR following robotic TECAB did not adversely affect midterm survival or adverse events in this propensity-matched cohort.
- Careful patient selection and prioritizing revascularization of dominant left-sided coronary targets are crucial for successful HCR.
- Further long-term follow-up studies are needed to fully elucidate the outcomes of incomplete HCR.
Background:
Hybrid coronary revascularization (HCR) combines minimally invasive coronary bypass with percutaneous coronary intervention (PCI) to achieve complete revascularization. However, in some patients, the PCI portion is not completed, resulting in incomplete HCR. Outcomes in this population are not well known. We sought to better understand this group of patients undergoing robotic beating-heart totally endoscopic coronary artery bypass (TECAB).
Methods:
We retrospectively analyzed 418 intent-to-treat HCR patients who underwent robotic TECAB between July 2013 and June 2025. Of these, 332 (80%) completed PCI and 85 (20%) did not. Propensity score matching yielded 82 well-balanced pairs. Early outcomes, perioperative variables, and midterm survival and freedom from major adverse cardiac and cerebrovascular events were compared.
Results:
Intraoperative and early postoperative outcomes were similar between groups. Hospital length of stay was slightly longer in the complete PCI group (2.7 ± 0.9 days vs 2.3 ± 0.8 days; P = .004). At 5 years, cardiac survival was 95.7% in the complete PCI group vs 95.4% in the incomplete PCI group (log-rank P = .608). Freedom from cardiac mortality, myocardial infarction, repeated revascularization, and major adverse cardiac and cerebrovascular events was also not significantly different. Incomplete PCI most commonly involved right coronary artery or nondominant circumflex lesions; no patients had ungrafted left anterior descending coronary artery or other dominant left-sided targets.
Conclusions:
In a propensity score-matched cohort of patients undergoing robotic TECAB, omission of PCI as part of HCR did not have a negative impact on midterm survival, repeated revascularization, or major adverse events. Careful selection of patients and prioritization of dominant left-sided coronary targets are vital. Further studies with longer follow-up are warranted.
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