Percutaneous tricuspid valve implantation in failing bioprosthesis
Review Article

Percutaneous tricuspid valve implantation in failing bioprosthesis

Andreas Eicken, Peter Ewert

Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Centre Munich, Technische Universität Munich, Munich, Germany

Contributions: (I) Conception and design: All authors; (II) Administrative support: All authors; (III) Provision of study materials or patients: All authors; (IV) Collection and assembly of data: All authors; (V) Data analysis and interpretation: All authors; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors.

Correspondence to: Andreas Eicken, MD, FESC. German Heart Centre Munich, Lazarettstr 36, Munich 80636, Germany. Email:

Abstract: Severe tricuspid valve (TV) dysfunction in patients with congenital heart disease (CHD) is usually treated by open heart surgery in relatively young patients. If a valve plasty is not possible, a biological valve is implanted with a limited durability. Due to valve degeneration repeated valve exchanges are necessary in these patients. To expand the lifetime of a bioprosthesis in tricuspid position percutaneous TV implantation (PTVI) was introduced recently. PTVI is a promising new catheter interventional technology. The current review summarizes the indication for PTVI, describes the procedure itself and gives an outlook on medium to long-term results of this catheter intervention. PTVI in patients with severe TV dysfunction is less invasive, safe and effective, if performed by an experienced operator, and may help to reduce the total number of open-heart surgeries during a patient’s life time. However, further studies with larger patient numbers and longer follow-up are needed.

Keywords: Tricuspid valve (TV); transcatheter valve replacement; valve-in-valve replacement

Submitted Jun 26, 2018. Accepted for publication Aug 14, 2018.

doi: 10.21037/cdt.2018.09.08


Severe tricuspid valve (TV) dysfunction (TV regurgitation, TR; TV stenosis, TS, a combination of both) may have different etiologies. Primary cause can be congenital, as in Ebstein’s anomaly of the TV, where tethering of the septal TV leaflet leads to downward orientation of the TV annulus (1). This results in various degrees of TR, an atrialized segment of the right ventricle (RV) and consecutive left ventricular dysfunction. If a communication at atrial level is present, right to left shunt may induce severe cyanosis. Secondly, severe TR may be a symptom of various left heart pathologies, finally leading to chronic pressure overload of the RV, causing RV, and concomitant TV-ring-dilatation resulting in functional TR with poor prognosis (2-4). In these patients, TR is one component in a complex cardiac disease and a marker of an advanced disease stage. Finally, TV dysfunction may be present after previous surgery or catheter intervention for treatment of various congenital cardiac anomalies.

Patients with severe TV dysfunction may develop right ventricular failure and, hence, require treatment (5). The initial treatment option is TV surgery. For Ebstein’s anomaly, excellent results have been published with conservative operative techniques and more recently by the Cone-operation, pioneered by da Silva et al. (6,7). In patients with functional TR a thoughtful risk benefit analysis must be done, since abolishment of TR is not curative if left heart failure is the leading cause. If surgical tricuspid valvuloplasty is not feasible or the result of this operation is not satisfactory, TV replacement has to be performed (8,9). In most of these patients a bioprosthesis is implanted in TV position. With elapsing time, biological valves undergo degeneration leading to TV regurgitation and/or stenosis, right atrial (RA) enlargement, onset of clinical deterioration, atrial arrhythmias and right heart failure (10). In these patients the TVs need to be replaced again (11).

Percutaneous valve therapy

Patients with a failing bioprosthesis in tricuspid position are potentially excellent candidates for percutaneous TV implantation (PTVI). Percutaneous valve therapy was pioneered by Bonhoeffer et al. nearly 20 years ago (12), when a bovine jugular vein valve, sewn into a Cheatham platinum stent, was implanted from the groin into a stenotic bioprosthesis (Carpentier-Edwards bioprosthesis) in the right ventricular outflow tract of a child. Percutaneous pulmonary valve implantation (PPVI) preceded transcatheter aortic valve replacement (TAVR) by several years and the excellent PPVI results paved the way for TAVR, which is now performed in large numbers worldwide. The initial intention of PPVI was to prolong the life-span of a surgically implanted bioprosthesis by at least 2 years with the final goal to reduce the total number of open-heart surgeries in patients with CHD over their life-time. The Melody valve (Medtronic, Minneapolis, MN, USA) received the CE mark for PPVI in Canada and Europe in 2006 and FDA approval occurred in 2010. The Sapien XT valve (Edwards, Irvine, CA, USA) was approved by the FDA for percutaneous implantation in pulmonic position in the year 2016.

However, both valves are not approved for implantation in tricuspid position, hence, PTVI currently is an off-label catheter intervention. This needs to be discussed with patients—and at present with health care insurances. The failing bioprosthesis in TV position usually is an ideal landing zone for a percutaneously implanted valve, if the dimensions are well defined and the valve size is adequately selected. So far, an increasing number of patients have been treated by PTVI and longer follow-up is gathered in PTVI-registries (13-20).

To avoid registries open heart-surgery with its known risks and co-morbidities and to reduce the total number of surgical procedures during a patient’s life-span, PTVI is, in our view, a promising alternative treatment option.


The intervention is carried out in general anesthesia, or in deep conscious sedation. It has been described previously (15,21). After vascular access is achieved for both the femoral vein and artery a complete diagnostic catheterization is performed. If femoral veins are occluded, a jugular venous access may be used. Because accurate valve delivery requires coaxial positioning within the bioprosthesis, the X-ray system is rotated so that the imaging plane is aligned parallel to the radiopaque valve ring (if present) in the antero-posterior camera. The diastolic inflow gradient between the right atrium (RA) and the end-diastolic right ventricular pressure (RVEDP) is determined. The degree of tricuspid regurgitation is assessed by a right ventricular angiogram. A weight adjusted dose of heparin (100 units/kg, max. 5,000 units) is given. Periprocedural treatment includes antibiotic prophylaxis with a second generation cephalosporine (cefuroxime 100 mg/kg/d, divided in 3 doses or 3×1.5 g in adults).

A superstiff 0.035-inch guide wire (Meier Wire, Boston Scientific Natick MA, USA; Lunderquist Wire, Cook Medical Bloomington IN, USA; or Amplatz Ultrastiff, Cook Medical) is positioned distally into one pulmonary artery. Although PTVI may be performed directly into a known TV bioprosthesis (22,23) we prefer to inflate a non-compliant balloon (30 mm ×60 mm) in the TV, if necessary with concomitant depiction of the coronary artery anatomy. For PTVI pre-stenting is only necessary in heavily calcified homografts. Depending on the assessed valve diameter a percutaneous valve (Medtronic Melody valve, usually on a 22-mm balloon, or Edwards Sapien valve 26 mm, or 29 mm) is prepared and delivered over the super-stiff guide wire, which should stay in the pulmonary artery. In our practice, a Melody® valve (Medtronic Inc. Minneapolis MN, USA), was chosen if the internal valve diameter was <24 mm. For larger internal valve diameters, the Sapien 26 or Sapien XT 29 (Edwards Lifesciences Corp., Irvine CA, USA) valves were used. Recently, only the Sapien S3 valve is available at our centre. Strict perpendicular positioning of the X-ray system enables alignment of the transcatheter valve so that the proximal struts just protrude out of the bioprosthesis into the RA clearly across the rigid valve ring. Positioning too far into the bioprosthesis, distal to the rigid valve ring, may increase the risk of valve embolization into the RV. If a Sapien valve is used, the valve landing zone has to be circular and the diameter needs to be close to the nominal outer diameter of the used Sapien valve. If the valve is not completely dilated close to the nominal outer valve diameter, valve dysfunction may occur (stenosis or regurgitation). It may be necessary to re-dilate the valve with ultra-high-pressure balloons (Atlas gold Bard, Tempe, AZ, USA). If this is necessary, rapid pacing may be helpful to stabilize the balloon in the valve. Finally, the diastolic inflow gradient (RA-RV) is reassessed and a RV angiogram documents the result. On the following day the result is controlled by echocardiography. Aspirin (100 mg/day or 3–5 mg/kg) is administered for 6 months. After 6 months, a TEE, a cardiac magnetic resonance imaging (cMRI), an exercise test, and a clinical examination are performed.

Available percutaneous valves

The Medtronic Melody® valve (Figure 1) system involves a balloon-expandable prosthesis. For PTVI only the larger 18 mm valve is chosen. If dilated to an internal diameter of 22 mm, the outer diameter is 24 mm. The bovine jugular vein is sutured into a bare metal 34 mm 8 zig Cheatham platinum stent (Cheatham Platinum stent, NuMED Inc., Hopkinton, NY). Expanded to 22 mm internal diameter the stent shortens to a length of 24 mm. The valve is hand crimped onto a 22 mm balloon-in-balloon delivery catheter (Ensemble Transcatheter Delivery System, Minneapolis, MN, USA) with a maximal outer diameter of 22 F. If a shorter valve is needed, the distal and proximal zigs of the stent may be folded, adding additional 2 mm to the external diameter. The delivery system is then closed over the valve and the ensemble is guided over the wire into the final landing zone, where it can be re-opened, after which the BiB balloons are inflated.

Figure 1 Depiction of the Medtronic Melody® transcatheter pulmonary valve (18 mm bovine jugular vein valve with platinum iridium frame). It can expand to 24 mm external diameter with a 22 mm Ensemble® Delivery System. The length of the Melody® Transcatheter Pulmonary Valve varies between 26.2, 24.2 or 23 mm respectively, depending upon the size of the Ensemble® Delivery System used (18, 20, 22 mm, respectively, Medtronic Inc., Minneapolis, MN, USA). For PTVI mostly the largest balloon delivery ensamble (22 mm) is used. PTVI, percutaneous tricuspid valve implantation.

The Edwards Sapien® valve (Figure 2) is a tri-leaflet bovine pericardial valve, hand sutured onto a rigid chromium-cobalt stent frame and is available in four sizes, 20, 23, 26 and 29 mm external diameter. Once dilated, the stent length ranges from 14.3 mm for the 23 mm valve to 19.1 mm for the 29 mm valve. The valve is crimped using a specially designed tool to mount it onto a 30-mm long, noncompliant high-pressure balloon. The valve is delivered through a 14 or 16 F sheath into the femoral vein. The French size refers to the internal diameter of the expandable sheaths. The outer diameter of the Melody® valve is 22 F, but it can be delivered through the Edwards 16 F e-sheath. Hence, the external diameters of the valves (Melody® and Sapien® 23, 26, 29 mm) do not differ significantly. Once in the inferior vena cava, the valve is pushed forward onto the balloon. It is then advanced unguarded into the TV over the guide wire, where the valve is balloon dilated. Usually only the 26 and 29 mm Sapien valves are used for PTVI. With slight overfilling of the delivery balloon the Sapien 29 mm valve may be expanded to 31 mm (24).

Figure 2 The Edwards Sapien® XT valve: trileaflet bovine pericardium valve hand-sutured in a stainless-steel stent. The length of the expanded Sapien 26 mm valve is 17.2 mm and of the Sapien 29 mm valve is 19.1 mm. The valve is available in 20, 23, 26 and 29 mm external diameters. For PTVI mostly the 26 and 29 mm valves are used. PTVI, percutaneous tricuspid valve implantation.


PTVI is technically feasible, safe, and effective in selected patients with dysfunction of surgically implanted bioprostheses in TV position, using both Melody and Sapien transcatheter valves. Patients with congenital heart disease (CHD) and a failing bioprosthesis in tricuspid position usually have experienced several open-heart surgeries, present in a reduced clinical state and constitute a high-risk patient collective for repeated open-heart surgery. PTVI is a straight forward procedure with a high success rate and a low periprocedural complication rate. A recently published paper on surgical TV valve exchange in patients with CHD (n=51) and bioprosthesis dysfunction documented a 30-day mortality rate of 9%, with an estimated survival rate at 10 years of 80%. Freedom from re-intervention at 1, 5 and 10 years was 100%, 86% and 81%, respectively. However, after 10 years only 58% of patients did not show echocardiographic evidence of TV dysfunction, mostly TR was diagnosed (25).

Today, long term data on sustained preserved valve function after PTVI is not available, but short to medium term data are promising (17). In this study only one valve (Melody valve) had to be exchanged, 1.5 years after PTVI for recurrent severe TV regurgitation and all treated patients were alive. Histologically, the explanted Melody valve did not show any signs of valve infection or thrombosis, but the valve leaflets were thickened, with a central coaptation defect causing the valve regurgitation. The findings of this patient were published in a recent report by Bentham et al. (26). Notably, this patient subsequently developed early TV regurgitation (after six months) of the replaced surgical bioprosthesis (Carpentier-Edwards Perimount valve), and moderate regurgitation of a Sapien XT 29 mm valve implanted percutaneously within the bioprosthesis, suggesting that there was something about this patient’s physiology/anatomy that predisposed to TV prosthetic valve dysfunction. The reason for this recurrent dysfunction of various biological valves (i.e., Melody, Perimount and Sapien XT 29) implanted surgically and with different transcatheter methods remains speculative. Severe RV dysfunction was present, which leads to slow almost continuous blood flow through the TV, such that the valve did not open and close in the normal phasic fashion, and proper valve leaflet function was not achievable. This is similar to the physiologic conditions after a Fontan procedure in which the initially suggested implantation of homograft valves proved to be unsuccessful (27).

The largest study on PTVI is from an international, multicenter registry study on 156 patients with bioprosthetic TV dysfunction of whom 71% were in New York Heart Association functional class III–IV. In 152 attempted procedures (Melody 94, Sapien 58) the valve was successfully implanted in 150 patients (99%). The RA-RV inflow gradient was reduced significantly and TR was abolished. During follow-up (median 13.3 months), 22 patients had died, 5 within 30-days post PTVI; all had been in NYHA class III or IV and 9 had been hospitalized before PTVI. There were 10 TV reinterventions, and three patients (including the patient mentioned above) had significant recurrent TV dysfunction. At follow-up, 77% of patients were in NYHA class I or II (P<0.001 versus before PTVI). The authors concluded that PTVI should be considered a viable option for treatment of failing TV bioprostheses (18).

Finally, first reports are published on PTVI in patients without a bioprosthesis in tricuspid position (28,29).

In conclusion, patients with severe TV bioprosthesis dysfunction are a high-risk population for redo open heart surgery. In contrast to redo surgery, PTVI is far less invasive and short-to medium term follow-up results are promising and show similar hemodynamic results. PTVI performed by an experienced operator is a feasible, safe and effective treatment option in these patients, possibly reducing the total number of open-heart surgeries throughout their total lifetime. Further studies with larger patient numbers and longer follow-up are needed.




Conflicts of Interest: A Eicken is proctor for the Medtronic Melody valve; P Ewert is proctor for the Medtronic Melody valve and the Edwards Sapien valve.


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Cite this article as: Eicken A, Ewert P. Percutaneous tricuspid valve implantation in failing bioprosthesis. Cardiovasc Diagn Ther 2018;8(6):765-770. doi: 10.21037/cdt.2018.09.08