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Letter to Editor  |  Open Access  |  6 Apr 2023

Anaortic off-pump coronary artery surgery as a primary strategy to reduce the risk of neurological complications

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Vessel Plus 2023;7:8.
10.20517/2574-1209.2022.29 |  © The Author(s) 2023.
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We read with great interest the article by Seco and colleagues[1] based on their experience with the anaortic off-pump coronary artery bypass grafting (CABG), addressing the main advantages based on avoiding manipulation of the ascending aorta and achieving complete revascularization using multiple arterial grafts. Avoiding manipulation of the aorta has the rationale of reducing the risk of neurological complications, especially in high-risk patients affected preoperatively by previous ischemic stroke and or severe carotid artery atherosclerotic disease. The authors describe several techniques of arterial grafts sampling, and T- or Y-graft anastomoses. However, it is not always possible to use multiple arterial grafts, especially in elderly patients affected by lung disease or at risk of sternal dehiscence. We have conducted a monocentric study to evaluate the results of device-assisted (PAS-port, Cardica Inc., Redwood City, CA, US) clampless off-pump CABG. The PAS-Port device was used to perform proximal anastomoses of venous grafts on the ascending aorta during off-pump CABG, as compared with conventional on-pump CABG in 143 pairs of patients, after score matching of preoperative variables[2]. Rate of neurological injury was 2.1% in the clampless off-pump group and 9.1% in the conventional on-pump group (P = 0.02). As compared with the off-pump group, the higher incidence of neurological complications observed in the on-pump group was due primarily to a greater number of reversible neurological events, i.e., transient ischemia or delirium (6.3%, or 9 patients vs. 2.1%, or 3 patients). Two patients in the on-pump group experienced postoperative stroke. Off-pump CABG was found to be a protective factor against the onset of neurological complications (P = 0.04; HR = 2.0). Conversely, 14-year freedom from major adverse cardiac and cerebrovascular events was comparable (50% vs. 51%)[2].

Reported data showed that by avoiding manipulation of severely atherosclerotic and calcified aorta during cannulation or during cross-clamping, the neurological risk could be considerably reduced, especially that deriving from particulate embolism. Anaortic off-pump total arterial revascularization strategy, or the use of an automatic saphenous graft connector, can help to improve early outcomes.

DECLARATIONS

Authors’ contributions

Conception of the Letter: Nardi P, Bassano C, Buioni D

Supervision: Pisano C, Ruvolo G

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Not applicable.

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None.

Conflicts of interest

All authors declared that there are no conflicts of interest.

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Not applicable.

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Not applicable.

Copyright

© The Author(s) 2023.

REFERENCES

1. Seco M, Ramponi F, Brereton JL, Bigelow GA, Ganapathi AM, Vallely MP. Anaortic off-pump coronary artery bypass using multiple arterial grafts: Surgical technique. Vessel Plus 2021;5:18.

2. Bassano C, Nardi P, Buioni D, et al. Long-term follow-up of device assisted clampless off-pump coronary artery bypass grafting compared with conventional on-pump technique. Int J Environ Res Public Health 2022;19:275.

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OAE Style

Nardi P, Bassano C, Buioni D, Pisano C, Ruvolo G. Anaortic off-pump coronary artery surgery as a primary strategy to reduce the risk of neurological complications. Vessel Plus 2023;7:8. http://dx.doi.org/10.20517/2574-1209.2022.29

AMA Style

Nardi P, Bassano C, Buioni D, Pisano C, Ruvolo G. Anaortic off-pump coronary artery surgery as a primary strategy to reduce the risk of neurological complications. Vessel Plus. 2023; 7: 8. http://dx.doi.org/10.20517/2574-1209.2022.29

Chicago/Turabian Style

Paolo Nardi, Carlo Bassano, Dario Buioni, Calogera Pisano, Giovanni Ruvolo. 2023. "Anaortic off-pump coronary artery surgery as a primary strategy to reduce the risk of neurological complications" Vessel Plus. 7: 8. http://dx.doi.org/10.20517/2574-1209.2022.29

ACS Style

Nardi, P.; Bassano C.; Buioni D.; Pisano C.; Ruvolo G. Anaortic off-pump coronary artery surgery as a primary strategy to reduce the risk of neurological complications. Vessel Plus. 2023, 7, 8. http://dx.doi.org/10.20517/2574-1209.2022.29

About This Article

© The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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