Rapid-deployment Valve versus Conventional Valves in Aortic Valve Replacement in Intermediate-risk Patients

Journal: Advances in Medicine and Engineering Interdisciplinary Research DOI: 10.32629/ameir.v3i1.3457

Germán A. Fortunato1, Tomás D'Angelo1, Guido Busnelli1, Carlos A. Tamara1, Nicolás Sultano1, Jacinto Theaux1, Patricio E spector1, Florencia Valdecantos1, Ricardo Posatini1, Juan Bianco2, Emiliano Rossi3, Vadim Kotowicz1

1. Department of Cardiovascular Surgery, Hospital Italiano de Buenos Aires
2. Service of Anesthesiology, Hospital Italiano de Buenos Aires
3. Department of Cardiology, Hospital Italiano de Buenos Aires; Research Secretariat, Universidad del Hospital Italiano

Abstract

Background: Aortic valve replacement (AVR) in intermediate-risk (IR) patients is particularly challenging when determining the type of prosthesis to use. Rapid-deployment valves (RD-V) are emerging as a potential alternative in this patient population. Objectives: To compare early mortality, postoperative complications, and transvalvular hemodynamic parameters between AVR with conventional valves and RD-V in IR patients. Methods: We conducted a retrospective observational study of consecutive IR patients (STS-PROM score 4-8) undergoing AVR with conventional prostheses and RD-V between 2007 and 2023. Results: A total of 205 patients were included (140 AVR vs. 65 RD-V). Surgical risk was similar in both groups (STS-PROM 5.07 % vs. 5.7 % respectively, p = 0.210). The minimally invasive approach was more common in the RD-V group (32.3% vs. 0.7%, p < 0.001). The cardiopulmonary bypass time and aortic cross-clamp time were significantly shorter in the RD-V group (134.5 vs. 100 min and 104 vs. 73 min, respectively, p < 0.001). There was a trend to lower incidence of pacemaker implantation in the conventional valve group (4.3% vs. 10.8%, p = 0.075). There were no significant differences in postoperative complications, and a strong trend to lower 30-day mortality with RD-V (0% vs. 5.7% for conventional valves, p = 0.057). The mean postoperative gradient across the prosthesis was significantly lower in the RD-V group (7.90 ± 3.3 mm Hg vs. 12.74 ± 6.07 mm Hg, p < 0.001). There were no differences in the incidence of valve thrombosis or prosthetic endocarditis. Conclusions: Rapid-deployment valves demonstrated trend to lower mortality, shorter cardiopulmonary bypass time and aortic cross-clamp time, improved hemodynamic profile, and were easier to implant via a minimally invasive approach.

Keywords

biological valves; aortic valve replacement; intermediate risk; rapid deployment valves

References

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Copyright © 2025 Germán A. Fortunato, Tomás D'Angelo, Guido Busnelli, Carlos A. Tamara, Nicolás Sultano, Jacinto Theaux, Patricio E spector, Florencia Valdecantos, Ricardo Posatini, Juan Bianco, Emiliano Rossi, Vadim Kotowicz

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