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Das C, Al Awwa G, Mills EL, Lantz G. Minimally Invasive Mitral Valve Repair Using Transcatheter Chordal Attachments. Interv Cardiol Clin 2024; 13:257-269. [PMID: 38432768 DOI: 10.1016/j.iccl.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The advent of transcatheter mitral chordal replacement techniques has offered an alternative approach that is less invasive and may be more suitable for select patients compared with surgical repair. These systems involve introducing artificial chordae, via catheter, to replace or supplement damaged or elongated natural chordae. These artificial chordae are anchored at one end to the mitral leaflet and the other end to the papillary muscle or directly to the left ventricular apex, restoring the leaflet's coaptation and reducing regurgitation. Early trials and studies suggest promising results in terms of safety and efficacy in reducing MR severity and improving symptoms.
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Affiliation(s)
- Chandan Das
- Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Mail Code L353, Portland, OR 97239, USA
| | - Ghayth Al Awwa
- Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Mail Code L353, Portland, OR 97239, USA
| | - Emmanuel L Mills
- Knight Cardiovascular Institute, Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Mail Code UHN-62, Portland, OR 97239, USA
| | - Gurion Lantz
- Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Mail Code L353, Portland, OR 97239, USA.
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Bergonzoni E, D’Onofrio A, Mastro F, Gerosa G. Microinvasive mitral valve repair with transapical mitral neochordae implantation. Front Cardiovasc Med 2023; 10:1166892. [PMID: 37576109 PMCID: PMC10416619 DOI: 10.3389/fcvm.2023.1166892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 07/03/2023] [Indexed: 08/15/2023] Open
Abstract
Microinvasive cardiac surgery includes procedures performed off-pump, on the beating heart, with limited or absent skin incision, and those that rely on live imaging techniques. Transapical off-pump beating heart neochordae implantation allows the repair of severe mitral valve regurgitation due to leaflet prolapse or flail with live three-dimensional echo guidance. This procedure has shown good results for up to 5 years and can be considered as a valid alternative to conventional surgery in selected patients with high prediction of success based on clinical and anatomical considerations. The aim of this review is to describe the devices, indications, patient screening process, clinical and echocardiographic results, and future perspectives of this procedure.
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Zhang T, Dou Y, Luo R, Yang L, Zhang W, Ma K, Wang Y, Zhang X. A review of the development of interventional devices for mitral valve repair with the implantation of artificial chords. Front Bioeng Biotechnol 2023; 11:1173413. [PMID: 37334267 PMCID: PMC10272602 DOI: 10.3389/fbioe.2023.1173413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/19/2023] [Indexed: 06/20/2023] Open
Abstract
Mitral regurgitation (MR) was the most common heart valve disease. Surgical repair with artificial chordal replacement had become one of the standard treatments for mitral regurgitation. Expanded polytetrafluoroethylene (ePTFE) was currently the most commonly used artificial chordae material due to its unique physicochemical and biocompatible properties. Interventional artificial chordal implantation techniques had emerged as an alternative treatment option for physicians and patients in treating mitral regurgitation. Using either a transapical or a transcatheter approach with interventional devices, a chordal replacement could be performed transcatheter in the beating heart without cardiopulmonary bypass, and the acute effect on the resolution of mitral regurgitation could be monitored in real-time by transesophageal echo imaging during the procedure. Despite the in vitro durability of the expanded polytetrafluoroethylene material, artificial chordal rupture occasionally occurred. In this article, we reviewed the development and therapeutic results of interventional devices for chordal implantation and discuss the possible clinical factors responsible for the rupture of the artificial chordal material.
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Affiliation(s)
- Tingchao Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
- Hangzhou Valgen Medtech Co., Ltd., Hangzhou, China
| | - Yichen Dou
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Weiwei Zhang
- Hangzhou Valgen Medtech Co., Ltd., Hangzhou, China
| | - Kangmu Ma
- Hangzhou Valgen Medtech Co., Ltd., Hangzhou, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, China
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D'Onofrio A, Gerosa G. Author Reply to Commentary: Let's fill in the glass! J Thorac Cardiovasc Surg 2023; 165:1049. [PMID: 35764461 DOI: 10.1016/j.jtcvs.2022.04.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Augusto D'Onofrio
- Division of Cardiac Surgery, Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padova, Padova, Italy.
| | - Gino Gerosa
- Division of Cardiac Surgery, Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padova, Padova, Italy
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Eleid MF, Nkomo VT, Pislaru SV, Gersh BJ. Valvular Heart Disease: New Concepts in Pathophysiology and Therapeutic Approaches. Annu Rev Med 2023; 74:155-170. [PMID: 36400067 DOI: 10.1146/annurev-med-042921-122533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review discusses recent advancements in the field of valvular heart disease. Topics covered include recognition of the impact of atrial fibrillation on development and assessment of valvular disease, strategies for global prevention of rheumatic heart disease, understanding and management of secondary mitral regurgitation, the updated classification of bicuspid aortic valve disease, recognition of heightened cardiovascular risk associated with moderate aortic stenosis, and a growing armamentarium of transcatheter therapies.
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Affiliation(s)
- Mackram F Eleid
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA;
| | - Vuyisile T Nkomo
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA;
| | - Sorin V Pislaru
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA;
| | - Bernard J Gersh
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA;
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D’Onofrio A, Gerosa G. An effective balance is based on many pillars. Interact Cardiovasc Thorac Surg 2022; 35:ivac154. [PMID: 35642901 PMCID: PMC9297498 DOI: 10.1093/icvts/ivac154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 05/30/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - Gino Gerosa
- Division of Cardiac Surgery, University of Padova, Padova, Italy
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Abstract
Chordal replacement is a fundamental technique used in the surgical repair of primary mitral regurgitation, and can be an effective means of preserving the native valve without leaflet resection. Surgical chordal replacement can be challenging since it is performed on an open, non-beating heart, and choosing the correct chord length to restore the zone of coaptation requires both intuition and skill. Developing transcatheter, transfemoral, and transseptal approaches to mitral valve chordal replacement presents the opportunity for safer and potentially earlier treatment of patients with primary mitral regurgitation. In particular, transcatheter methods will allow adjustment of chordal length and position real-time on a beating heart under echocardiographic guidance. In this manuscript, we review the current transcatheter transseptal technologies in development and discuss the various issues related to device design, efficacy, durability, and clinical trial design.
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Affiliation(s)
- Jason H Rogers
- Division of Cardiovascular Medicine, University of California, Davis Medical Center, Sacramento, CA, USA
| | - Steven F Bolling
- Department of Cardiac Surgery, University of Michigan Health System, Ann Arbor, MI, USA
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Badhwar V. Transcatheter mitral valve intervention: Consensus, quality, and equipoise. J Thorac Cardiovasc Surg 2020; 160:93-98. [PMID: 32389460 DOI: 10.1016/j.jtcvs.2020.03.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Vinay Badhwar
- Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, WVa.
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