Background
Isolated exclusion of the non-coronary sinus (NCS) is an attractive strategy in valve-sparing
aortic root surgery, which avoids the mobilisation and re-implantation of coronary
ostia. However, the long-term durability of aortic valve repair and the fate of remnant
sinuses of Valsalva remain unclear.
Method
From January 2006 to December 2013, 29 patients underwent replacement of the ascending
aorta extending to the NCS (group NCS) and 56 patients underwent a modified Yacoub
procedure (group MY) in our centre by a single surgeon. Significant difference of
preoperative parameters was observed between two groups in the presence of bicuspid
aortic valve (41.4% vs 12.5%, p=0.002) and the diameter of the sinus of Valsalva (47.3±4.7
mm vs 51.5±4.9 mm, p=0.01).
Results
The group NCS, as compared to the group MY, was associated with significantly shorter
cardiopulmonary bypass time (106.6±40.5 min vs 138.4±37.5 min, p=0.001) and aortic
cross clamping time (69.0±21.8 min vs 105.4±27.8 min, p<0.01). The mean follow-up
was 11.5±2.8 years. No surgical re-intervention was performed for aortopathies of
the aortic root; the neo-sinus were not dilated in either groups (38.2±4.2 mm vs 34.0±4.0
mm, p<0.01). The 10-year freedom from aortic valve-related re-operation was estimated
to be 96.6±3.4% and 94.5±3.1% (p=0.58), and the cumulative 10-year survival rates
were 95.2±4.6% and 85.6±4.7% (p=0.61) in the group NCS and the group MY, respectively.
Conclusions
Aortic valve-sparing isolated NCS replacement can be safely performed in selected
patients; its early outcomes, overall survival and long-term freedom from aortic valve-related
or aortopathy-related re-intervention were comparable to those obtained with the Yacoub
procedure.
Keywords
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Article info
Publication history
Published online: May 31, 2022
Accepted:
April 2,
2022
Received in revised form:
March 24,
2022
Received:
November 23,
2021
Identification
Copyright
© 2022 Published by Elsevier B.V. on behalf of Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ).