Journal of Chest Surgery

  • 제53권6호
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  • Pages.325-331
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  • 2020
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  • 2765-1606(pISSN)
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  • 2765-1614(eISSN)
대한심장혈관흉부외과학회 (The Korean Society for Thoracic and Cardiovascular Surgery)
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Optimal Tricuspid Annular Size for Tricuspid Annuloplasty in Patients with Less-Than-Moderate Functional Tricuspid Regurgitation

  • Choi, Jae Woong (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Kim, Kyung Hwan (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Lim, Su Chan (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Kim, Sue Hyun (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Sohn, Suk Ho (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Lee, Yeiwon (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Hwang, Ho Young (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
  • 투고 : 2019.09.23
  • 심사 : 2020.06.02
  • 발행 : 2020.12.05
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초록

Background: We evaluated the association between tricuspid annular dilatation and the development of moderate or severe tricuspid regurgitation (TR). Additionally, we determined the optimal tricuspid annular dilatation threshold to use as an indicator for tricuspid annuloplasty in patients with less-than-moderate functional TR (FTR). Methods: Between August 2007 and December 2014, 227 patients with less-than-moderate TR underwent mitral valve surgery without a tricuspid valve (TV) procedure. The TV annular diameter was measured via transthoracic echocardiography. The TV annular index (TVAI) was calculated as the TV annular diameter divided by the body surface area. The mean duration of echocardiographic follow-up was 42.0 months (interquartile range, 9.3-66.6 months). Results: Eight patients (3.5%) developed moderate or severe TR. The rate of freedom from development of moderate or severe TR at 5 years was 96.2%. TV annular diameter, left atrial diameter, preoperative atrial fibrillation, and TVAI were found to be associated with the development of moderate or severe TR in the univariate analysis. A cut-off TVAI value of 19.8 mm/㎡ was found to predict the development of moderate or severe TR, and a significant difference was observed in the development of TR of this severity based on this cut-off (p<0.001). Conclusion: The progression of TR was not infrequent in patients with untreated lessthan-moderate FTR. An aggressive treatment approach can be helpful to prevent the progression of FTR for patients with risk factors, especially TVAI greater than 19.8 mm/㎡.

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참고문헌

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