MANTA Dedicated Large-Bore Vessel Closure Device

Cutting balloon for femoral arterial and venus obstructions due to suture-based closure devices: Case series

Suture-based vascular closure devices have been shown to be effective in hemostasis for procedures with vascular access. However, iatrogenic vascular occlusion may occur. The cutting balloon (CB) is a noncompliant balloon wrapped with 3-4 microsurgical blades that are intended to modify vascular lesions, but it may also be utilized to cut and release endovascular sutures. We report two cases in which the CB was employed as a bailout strategy to alleviate suture-related vascular occlusion after transcatheter aortic valve replacement. The CB can be effectively utilized to resolve suture-related vascular occlusion.

'Post-Close' Femoral Arterial Haemostasis at Endovascular Aneurysm Repair using a Dedicated Large-Bore Vascular Closure Device: A Prospective Real-World Audit

PURPOSE

Percutaneous access for endovascular aneurysm repair (EVAR) is commonplace, with its attendant benefits. The combination of continued reduction in device profile and evolution of vascular closure device (VCD) design drives successful and safe percutaneous EVAR. A new such VCD is the MANTA Large-Bore Closure Device designed in two iterations for closure of arterial defects from 10 to 25F. We present a prospective audit of 131 large-bore femoral closures using an 'all-comers' approach to device selection.

MATERIALS AND METHODS

One hundred and thirty-one large-bore femoral arterial defects were analysed. Both 14F and 18F MANTA VCDs were deployed in this series as per instructions for use. Primary objectives were technical success, particularly successful deployment, and haemostasis achieved. Failures were denoted as failure to deploy; failure to achieve haemostasis was denoted as active bleeding, haematoma, or pseudoaneurysm formation requiring intervention. Later complications assessed were vessel occlusion/thrombosis or stenosis.

RESULTS

Seventy-six patients (65 males and 11 females, age 75.2 ± 8.7 years) underwent a range of procedures including EVAR (n = 66), TEVAR (n = 2), and reinterventions (n = 8) requiring large-bore percutaneous femoral arterial access in 131 groins. Of these, the 14F MANTA VCD was used in 61 closures (defects ranging from 12 to 18F) and the 18F in 70 closures (defects ranging from 16 to 24F). Deployments achieved successful haemostasis in 120 (91.6%), and failures occurred in 11(8.4%) groins.

CONCLUSIONS

This study indicates that a post-close approach using the novel MANTA Large-Bore Closure Device can be undertaken successfully to close a range of large-bore femoral arterial defects at EVAR/TEVAR with an acceptable rate of complications.

Comparison of Suture-Based and Collagen-Based Vascular Closure Devices for Large Bore Arteriotomies-A Meta-Analysis of Bleeding and Vascular Outcomes

BACKGROUND

Large bore access procedures rely on vascular closure devices to minimize access site complications. Suture-based vascular closure devices (S-VCD) such as ProGlide and ProStar XL have been readily used, but recently, newer generation collagen-based vascular closure devices (C-VCD) such as MANTA have been introduced. Data on comparisons of these devices are limited.

METHODS

PubMed, Scopus and Cochrane were searched for articles on vascular closure devices using keywords, ("Vascular closure devices" OR "MANTA" OR "ProStar XL" OR "ProGlide") AND ("outcomes") that resulted in a total of 875 studies. Studies were included if bleeding or vascular complications as defined by Valve Academic Research Consortium-2 were compared between the two types of VCDs. The event level data were pooled across trials to calculate the Odds Ratio (OR) with 95% CI, and analysis was done with Review Manager 5.4 using random effects model.

RESULTS

Pooled analyses from these nine studies resulted in a total of 3410 patients, out of which 2855 were available for analysis. A total of 1229 received C-VCD and 1626 received S- VCD. Among the patients who received C-VCD, the bleeding complications (major and minor) were similar to patients who received S-VCD ((OR: 0.70 (0.35-1.39), p = 0.31, I² = 55%), OR: 0.92 (0.53-1.61), p = 0.77, I² = 65%)). The vascular complications (major and minor) in patients who received C-VCD were also similar to patients who received S-VCD ((OR: 1.01 (0.48-2.12), p = 0.98, I² = 52%), (OR: 0.90 (0.62-1.30), p = 0.56, I² = 35%)).

CONCLUSIONS

Bleeding and vascular complications after large bore arteriotomy closure with collagen-based vascular closure devices are similar to suture-based vascular closure devices.

Comparison of MANTA vs ProGlide Vascular Closure Device and 30-Day Outcomes in Transfemoral Transcatheter Aortic Valve Implantation

Background

Vascular complications (VCs) after transfemoral transcatheter aortic valve implantation (TAVI) have an increased mortality risk, and vascular closure device (VCD) use is mandatory. The percutaneous MANTA VCD (Teleflex) is a novel collagen-based technology for closure of large-bore arteriotomies. We compared the MANTA VCD with the suture-based ProGlide VCD (Abbott Vascular).

Methods

A retrospective review was performed on all consecutive patients who underwent transfemoral TAVI in our center from January 1, 2015, to February 28, 2021, and 30-day outcomes were recorded. Major adverse cardiovascular events (MACE) were cardiac death, disabling stroke, and/or major VCs. Access site–related VCs were VCs related to the access site vessel from which the transcatheter valve was introduced and advanced.

Results

The MANTA VCD was used in 99 patients and the ProGlide in 224. There was 4.0% MACE in the MANTA group and 4.9% in the ProGlide group (P = .999). Overall VCs were 10.1% vs 7.6%, major VCs were 3.0% vs 2.2%, and minor VCs 7.1% vs 5.4%(P = .753). Access site–related VCs were 5.1% vs 5.8% in the (P = .999), and periprocedural vascular surgical intervention was needed in 6.1% of the MANTA group vs 2.2% of the ProGlide group (P = .099).

Conclusion

There was no significant difference in MACE, mortality, cardiovascular mortality, VCs, access site–related VCs, periprocedural vascular surgical interventions, bleeding, or transfusion rate between the 2 groups. The MANTA VCD group had more periprocedural vascular surgical interventions which did not reach statistical significance.

Real-World Experience With a Large Bore Vascular Closure Device During TAVI Procedure: Features and Predictors of Access-Site Vascular Complications

Backgrounds

Among vascular closure devices (VCDs), the novel collagen plug-based MANTA VCD is the first designed for large bore percutaneous access. We aimed to assess the features and predictors of access-site vascular complications in an unselected trans-femoral transcatheter aortic valve replacement (TF-TAVR) population.

Methods

Patients undergoing large bore arteriotomy closure with 18F MANTA VCD following TF-TAVR at a large tertiary care center from September 2019 to January 2021 were prospectively analyzed. Primary Outcome was the MANTA VCD access-site-related complications according to Valve Academic Research Consortium-3 (VARC) definitions. Its incidence and predictors were evaluated.

Results

Eighty-eight patients (median age 82 years, 48% male, 3.3 median Society of Thoracic Surgeons score) undergoing TF-TAVR were included, mostly (63%) treated with a self-expandable device and with outer diameter sizes varied from 18F to 24-F. MANTA VCD technical success rate was 98%, while 10 patients (11%) experienced MANTA VCD access-site vascular complications which included 8% of minor complications and only to 2% of major events resulting in VARC type ≥2 bleeding. Vessel occlusion/stenosis (60%), perforation (20%), and pseudoaneurysm/dissection/hematoma (20%) occurred, but all were managed without surgical treatment. Independent predictors of failure were age (p = 0.04), minimum common femoral artery diameter (CFA) (p < 0.01), sheath-to-femoral-artery ratio (SFAR) (p < 0.01), and a lower puncture height (p = 0.03). A CFA diameter <7.1 mm with a SFAR threshold of 1.01 were associated with VCD failure.

Conclusions

In a more comers TF-TAVR population, MANTA VCD was associated with reassuring rates of technical success and major access-site vascular complications. Avoiding lower vessel size and less puncture site distance to CFA bifurcation might further improve outcomes.

Transcatheter Aortic Valve Replacement: Advances in Procedural Technology and Approaches

Transcatheter aortic valve replacement (TAVR) is now the dominant form of aortic valve replacement in the United States. Continued innovation has allowed the technique to be safe and democratized. New advances will increase the number of patients eligible to receive this therapy while increasing safety and efficiency. Herein, the authors review new TAVR technologies, approaches to valve deployment, and dedicated devices for cerebral embolic protection and vascular closure.