Contour 3D™ annuloplasty ring for surgical valve repair

The Contour 3D annuloplasty ring is a remodeling ring with a physiological tricuspid valve shape — a 2-D shape and 3-D curvature based on CT data from functional tricuspid valves.

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Alert Indications, Safety, and Warnings

Overview

2-D shape
3-D curvature

The Contour 3D annuloplasty ring is a three-dimensional, anatomically shaped rigid remodeling ring for the treatment of functional tricuspid valve disease. The ring is designed to facilitate an asymmetric reduction annuloplasty.

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Illustration of Contour 3D ring showing motion

Product details

The Contour 3D design is based on CT data from functional human tricuspid valves.

Rings that resemble the natural shape of the annulus provide better leaflet coaptation than planar rings by preserving greater leaflet mobility.^1,2

Septal lateral compression is incorporated into the ring to address annular dilatation.

3-D curvature

Lateral compression

Real-world clinical evidence

Long-term results with three-dimensional rings: effective and durable³

A recent retrospective study analyzed 168 patients undergoing tricuspid valve repair either with Contour 3D or MC3™* rings. The cumulative incidence of recurrent tricuspid regurgitation (TR) ≥ 2+ was 14 ± 3.17% at long-term follow-up.

Rate of TR ≥ 2+

7.5 ± 3.69% in the Contour 3D group
20.3 ± 5.03% in the MC3 group

Cumulative incidence function of TR ≥ 2+

Graph showing cumulative incidence of recurrent tricuspid regurgitation after seven years for Contour 3D ring and MC3 ring

Low regurgitation recurrence⁴

In a retrospective analysis of 468 patients who underwent tricuspid valve repair with Contour 3D ring, 96.1% of the patients had no/trivial or mild TR and cumulative incidence for tricuspid valve reoperation was 2.0 ± 1.1% at six-year follow-up.

Cumulative incidence of reoperation

4 years: 1.1 ± 0.5%
6 years: 2.0 ± 1.1%

Tricuspid valve regurgitation

Key risks of tricuspid annuloplasty include recurrent regurgitation, stenosis, and ring dehiscence.

Product specifications and ordering information

Contour 3D tricuspid annuloplasty ring, Model 690R

Illustration of Contour 3D ring with callouts

Order number	Ring size (mm)	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)	F (mm)	Orifice area (mm²)
690R26	26	24	32	16	24	10	7	326.1
690R28	28	26	34	18	25	11	7	387.2
690R30	30	28	36	19	27	12	8	449.2
690R32	32	30	38	21	28	13	8	512.4
690R34	34	32	40	22	30	14	9	588.6
690R36	36	34	42	23	31	15	9	665.1

Ordering information

Order number	Description
T7690	Contour 3D accessory tray
7686	Annuloplasty handle (216 mm length)
7686L	Annuloplasty handle (254 mm length)
7686XL	Annuloplasty handle (373 mm length)
7690S	Contour 3D sizer set (6 reusable sizers, 26–36 mm)

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Contact information

LifeLine Cardiovascular
Technical Support

877-526-7890

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Medtronic Mitral Academy

View training, education, and collaboration information on the treatment of mitral and tricuspid valve disease.

Key risks of tricuspid annuloplasty include recurrent regurgitation, stenosis, and ring dehiscence.

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References

Ratschiller T, Guenther T, Guenzinger R, et al. Early experiences with a new three-dimensional annuloplasty ring for the treatment of functional tricuspid regurgitation. Ann Thorac Surg. 2014;98(6):2039–2044.

Padala M, Hutchison RA, Croft LR, et al. Saddle shape of the mitral annulus reduces systolic strains on the P2 segment of the posterior mitral leaflet. Ann Thorac Surg. 2009;88(5):1499–1504.

Carino D, Zancanaro E, Lapenna E, et al. Long-term results of tricuspid annuloplasty with 3-dimensional-shaped rings: effective and durable! Eur J Cardiothorac Surg. 2021;60(1):115–121.

⁴

Dzilic E, Guenther T, Bouziani A, et al. Results after repair of functional tricuspid regurgitation with a three-dimensional annuloplasty ring. J Clin Med. 2021;10(21):5080.