| 1. | Otto CM, Nishimura RA, Bonow RO,  et al. 2020 ACC/AHA guideline for the management of patients with valvular heart disease: Executive summary: A report of the American College of Cardiology/American Heart Association Joint Committee on clinical practice guidelines. J Am Coll Cardiol, 2021, 77(4): 450-500. | 
				                                                        
				                                                            
				                                                                | 2. | Vahanian A, Beyersdorf F, Praz F,  et al. 2021 ESC/EACTS guidelines for the management of valvular heart disease. Eur Heart J, 2022, 43(7): 561-632. | 
				                                                        
				                                                            
				                                                                | 3. | Ruf TF, Hahn RT, Kreidel F,  et al. Short-term clinical outcomes of transcatheter tricuspid valve repair with the third-generation MitraClip XTR system. JACC Cardiovasc Interv, 2021, 14(11): 1231-1240. | 
				                                                        
				                                                            
				                                                                | 4. | Aurich M, Volz MJ, Mereles D,  et al. Initial experience with the PASCAL ace implant system for treatment of severe tricuspid regurgitation. Circ Cardiovasc Interv, 2021, 14(9): e010770. | 
				                                                        
				                                                            
				                                                                | 5. | 潘文志, 龙愉良, 周达新, 等. 经导管缘对缘修复: 定义、分类及技术更新. 中国介入心脏病学杂志, 2022, 30(6): 440-444. | 
				                                                        
				                                                            
				                                                                | 6. | Ives CW, Prejean SP, Vardas PN,  et al. Initial experiences with the MitraClip G4: Review of the novel device features. Innovations (Phila), 2021, 16(5): 448-455. | 
				                                                        
				                                                            
				                                                                | 7. | Long Y, Pan W, Pan C,  et al. Real-time echocardiographic guidance for transcatheter repair noncentral mitral regurgitation using the novel ValveClamp system. J Card Surg, 2021, 36(11): 4378-4380. | 
				                                                        
				                                                            
				                                                                | 8. | Lim DS, Kar S, Spargias K,  et al. Transcatheter valve repair for patients with mitral regurgitation: 30-day results of the CLASP sudy. JACC Cardiovasc Interv, 2019, 12(14): 1369-1378. | 
				                                                        
				                                                            
				                                                                | 9. | Maisano F, Torracca L, Oppizzi M,  et al . The edge-to-edge technique: A simplified method to correct mitral insufficiency.  Eur J Cardiothorac Surg, 1998, 13(3): 240-246. | 
				                                                        
				                                                            
				                                                                | 10. | Makhdoum A, Dokollari A, Elbatarny M,  et al. Resurgence of the edge-to-edge repair of the mitral valve. Curr Opin Cardiol, 2021, 36(2): 125-129. | 
				                                                        
				                                                            
				                                                                | 11. | Sharma A, Agrawal S, Goel S,  et al. Surgical treatment of ischemic mitral regurgitation: Valve repair versus replacement. Curr Cardiol Rep, 2017, 19(1): 3. | 
				                                                        
				                                                            
				                                                                | 12. | De Bonis M, Lapenna E, Taramasso M,  et al. Very long-term durability of the edge-to-edge repair for isolated anterior mitral leaflet prolapse: Up to 21 years of clinical and echocardiographic results. J Thorac Cardiovasc Surg, 2014, 148(5): 2027-2032. | 
				                                                        
				                                                            
				                                                                | 13. | De Bonis M, Lapenna E, Maisano F, et al. Long-term results (≤18 years) of the edge-to-edge mitral valve repair without annuloplasty in degenerative mitral regurgitation: Implications for the percutaneous approach. Circulation, 2014, 130(11 Suppl 1): S19-S24. | 
				                                                        
				                                                            
				                                                                | 14. | Mack MJ, Lindenfeld J, Abraham WT,  et al. 3-year outcomes of transcatheter mitral valve repair in patients with heart failure. J Am Coll Cardiol, 2021, 77(8): 1029-1040. | 
				                                                        
				                                                            
				                                                                | 15. | Oh NA, Kampaktsis PN, Gallo M,  et al. An updated meta-analysis of MitraClip versus surgery for mitral regurgitation. Ann Cardiothorac Surg, 2021, 10(1): 1-14. | 
				                                                        
				                                                            
				                                                                | 16. | 金沁纯, 潘文志, 周达新. 经导管缘对缘修复治疗房性功能性二尖瓣反流的进展更新. 心电与循环, 2023, 42(4): 310-314, 340. | 
				                                                        
				                                                            
				                                                                | 17. | Aranda-Domene R, Canovas SJ. Going further of mitral ring annuloplasty: The role of surgery in atrial functional mitral regurgitation. J Thorac Dis, 2023, 15(5): 2381-2384. | 
				                                                        
				                                                            
				                                                                | 18. | Luk A, Butany J, Ahn E,  et al. Mitral repair with the Evalve MitraClip device: Histopathologic findings in the porcine model. Cardiovasc Pathol, 2009, 18(5): 279-285. | 
				                                                        
				                                                            
				                                                                | 19. | St Goar FG, Fann JI, Komtebedde J,  et al. Endovascular edge-to-edge mitral valve repair: Short-term results in a porcine model. Circulation, 2003, 108(16): 1990-1993. | 
				                                                        
				                                                            
				                                                                | 20. | Ladich E, Michaels MB, Jones RM,  et al. Pathological healing response of explanted MitraClip devices. Circulation, 2011, 123(13): 1418-1427. | 
				                                                        
				                                                            
				                                                                | 21. | Nardi P, Pellegrino A, Olevano C,  et al. Mitral valve repair for the treatment of degenerative mitral valve disease with or without prosthetic ring annuloplasty: Long-term outcomes. J Cardiovasc Surg (Torino), 2013, 54(2): 305-312. | 
				                                                        
				                                                            
				                                                                | 22. | Sugiura A, Kavsur R, Spieker M,  et al. Recurrent mitral regurgitation after mitraclip: Predictive factors, morphology, and clinical implication. Circ Cardiovasc Interv, 2022, 15(3): e010895. | 
				                                                        
				                                                            
				                                                                | 23. | Hassan A, Eleid MF. Recurrent mitral regurgitation after MitraClip: Defining success and predicting outcomes. Circ Cardiovasc Interv, 2022, 15(3): e011837. | 
				                                                        
				                                                            
				                                                                | 24. | Adamo M, Pagnesi M, Popolo Rubbio A,  et al. Predictors of optimal procedural result after transcatheter edge-to-edge mitral valve repair in secondary mitral regurgitation. Catheter Cardiovasc Interv, 2022, 99(5): 1626-1635. | 
				                                                        
				                                                            
				                                                                | 25. | El-Shurafa H, Arafat AA, Albabtain MA,  et al. Residual versus recurrent mitral regurgitation after transcatheter mitral valve edge-to-edge repair. J Card Surg, 2021, 36(6): 1904-1909. | 
				                                                        
				                                                            
				                                                                | 26. | Suri RM, Clavel MA, Schaff HV,  et al. Effect of recurrent mitral regurgitation following degenerative mitral valve repair: Long-term analysis of competing outcomes. J Am Coll Cardiol, 2016, 67(5): 488-498. | 
				                                                        
				                                                            
				                                                                | 27. | Sato H, Cavalcante JL, Bae R,  et al. Coaptation reserve predicts optimal reduction in mitral regurgitation and long-term survival with transcatheter edge-to-edge repair. Circ Cardiovasc Interv, 2022, 15(7): e011562. | 
				                                                        
				                                                            
				                                                                | 28. | Koell B, Ludwig S, Weimann J,  et al. Long-term outcomes of patients with elevated mitral valve pressure gradient after mitral valve edge-to-edge repair. JACC Cardiovasc Interv, 2022, 15(9): 922-934. | 
				                                                        
				                                                            
				                                                                | 29. | Makkar RR, Chikwe J, Chakravarty T,  et al. Transcatheter mitral valve repair for degenerative mitral regurgitation. JAMA, 2023, 329(20): 1778-1788. | 
				                                                        
				                                                            
				                                                                | 30. | Kar S, Mack MJ, Lindenfeld J,  et al. Relationship between residual mitral regurgitation and clinical and quality-of-life outcomes after transcatheter and medical treatments in heart failure: COAPT Trial. Circulation, 2021, 144(6): 426-437. | 
				                                                        
				                                                            
				                                                                | 31. | Halaby R, Herrmann HC, Gertz ZM,  et al. Effect of mitral valve gradient after mitraclip on outcomes in secondary mitral regurgitation: Results From the COAPT Trial. JACC Cardiovasc Interv, 2021, 14(8): 879-889. | 
				                                                        
				                                                            
				                                                                | 32. | Higuchi S, Orban M, Stolz L,  et al . Impact of Residual mitral regurgitation on survival after transcatheter edge-to-edge repair for secondary mitral regurgitation. JACC Cardiovasc Interv, 2021, 14(11): 1243-1253. |