Aortic Angulation Distribution and Effects on the Outcomes of Self-Expanding Transcatheter Aortic Valve…

Cohort studyHeart, lung & circulation· Aug 2026

Aortic Angulation Distribution and Effects on the Outcomes of Self-Expanding Transcatheter Aortic Valve Replacement.

Qianbei He, Yuanyuan Yu, Ruitao Li … Yuan Feng

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Adult Cardiac SurgeryCohort studyClinical practiceQ2IF 1.8

Larger aortic angulation is associated with lower technical success in self-expanding transcatheter aortic valve replacement.

Aortic Angulation Distribution and Effects on the Outcomes of Self-Expanding Transcatheter Aortic Valve Replacement.

Qianbei He … Yuan Feng

Heart, lung & circulation · Aug 2026 · Q2 in Respiratory Medicine

Background

Aortic angulation (angulation), defined as the angle between the horizontal plane on the coronal plane and the plane of the aortic valve annulus, is an important anatomical factor in transcatheter aortic valve replacement (transcatheter aortic valve replacement).

Methods

We conducted a retrospective cohort study of 519 consecutive patients who underwent SE-TAVR at our centre from January 2016 to January 2021.

n = 519 consecutive patients

Results

larger aortic angle lowers technical success

AA≤55.5°

84.3%

AA>55.5°

75.1%

More results

The angulation of patients undergoing SE-TAVR ranged from 25° to 93°, with a mean value of 55.4°±9.7°.

In valve-type subgroup analysis, larger angulation demonstrated good predictive value for second-valve implantation (area under the curve 0.690; 95% confidence interval 0.617-0.763).

“

Conclusion · 1 of 2

A larger angulation is associated with a lower rate of technical success of SE-TAVR, mainly due to an increased frequency of second-valve implantation.

Conclusion · 2 of 2

The impact of angulation is more evident in patients with tricuspid aortic valve rather than in those with bicuspid aortic valve.

Aortic Angulation Distribution and Effects on the Outcomes of Self-Expanding Transcatheter Aortic Valve Replacement.

Aortic Angulation Distribution and Effects on the Outcomes of Self-Expanding Transcatheter Aortic Valve Replacement.

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