Robotic versus port-access mitral repair: A propensity score analysis.
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2021-04
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Abstract
Background
Port-access (PORT) and robotic (ROBO) mitral repair are well established, but differences in patient selection and outcomes are not well documented.Methods
A retrospective analysis was performed on 129 ROBO and 628 PORT mitral repairs at one institution. ROBO patients had 4 cm nonrib spreading incisions with robotic assistance, while PORT patients had 6-8 cm rib spreading incisions with thoracoscopic assistance. Propensity score analysis matched patients for differences in baseline characteristics.Results
Unmatched ROBO patients were younger (58 ± 11 vs. 61 ± 13, p = .05), had a higher percentage of males (77% vs. 63%, p = .003) and had less NYHA Class 3-4 symptoms (11% vs. 21%, p < .01), less atrial fibrillation (19% vs. 29%, p = .02) and less tricuspid regurgitation (14% vs. 24%, p = .01). Propensity score analysis of matched patients showed that pump time (275 ± 57 vs. 207 ± 55, p < .0001) and clamp time (152 ± 38 vs. 130 ± 34, p < .0001) were longer for ROBO patients. However, length of stay, postoperative morbidity, and 5-year survival (97 ± 1% vs. 96 ± 3%, p = .7) were not different. For matched patients with degenerative valve disease, 5-year incidence of mitral reoperation (3 ± 2% vs. 1 ± 1%), severe mitral regurgitation (MR) (6 ± 4% vs. 1 ± 1%), or ≥2 + MR (12 ± 5% vs. 12 ± 4%), were not significantly different between ROBO versus PORT approaches. Predictors of recurrent moderate MR were connective tissue disease, functional etiology, and non-White race, but not surgical approach.Conclusions
In this first comparison out to 5 years, robotic versus port-access approach to mitral repair had longer pump and clamp times. Perioperative morbidity, 5-year survival, and 5-year repair durability were otherwise similar.Type
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Barac, Yaron D, Rahul S Loungani, Richard Sabulsky, Brittany Zwischenberger, Jeffrey Gaca, Keith Carr and Donald D Glower (2021). Robotic versus port-access mitral repair: A propensity score analysis. Journal of cardiac surgery, 36(4). pp. 1219–1225. 10.1111/jocs.15342 Retrieved from https://hdl.handle.net/10161/22843.
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Scholars@Duke
Brittany Anne Zwischenberger
Jeffrey Giles Gaca
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