Assessment of mitral annuloplasty ring by cardiac computed tomography: Correlation with echocardiographic parameters and comparison between two different ring types

Young Joo Suh, Byung Chul Chang, Dong Jin Im, Yun Jung Kim, Yoo Jin Hong, Geu Ru Hong, Young Jin Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Objectives This study investigated computed tomographic (CT) appearance after mitral ring annuloplasty, especially comparing CT findings between patients with normal pressure gradient (PG) and patients with functional mitral stenosis (MS) and between 2 commonly used types of annuloplasty ring. Methods A total of 45 cardiac CT scans in patients who underwent mitral ring annuloplasty (Carpentier-Edwards ring, n = 27; Duran ring, n = 18) were retrospectively reviewed. On CT scan, presence of significant pannus around the annuloplasty ring, presence of leaflet thickening, and maximal mitral opening area were analyzed. CT findings were compared between patients with normal PG and patients with functional MS (mean diastolic PG ≥ 5 mm Hg). Incidences of functional MS and CT findings were compared between ring types. Results Significant pannus was present in 10 cases and leaflet thickening in 31 cases, and maximal opening area was 2.34 ± 0.717 cm 2 . Valve opening area on CT was positively correlated with mitral valve area on transthoracic echocardiography and negatively correlated with mean diastolic PG. Mean diastolic PG was significantly elevated with increasing pannus severity. Patients with functional MS had more significant pannus than patients with normal PG. The Duran ring group had higher mean diastolic PG, smaller mitral valve area, and higher incidence of functional MS than the Carpentier-Edwards ring group (P <.05). The proportion of pannus and significant pannus was significantly higher in the Duran ring group (P <.05). Conclusions Significant pannus around the annuloplasty ring on CT may cause functional MS after mitral ring annuloplasty. This may occur more frequently with the Duran ring.

Original languageEnglish
Pages (from-to)1082-1090
Number of pages9
JournalJournal of Thoracic and Cardiovascular Surgery
Volume150
Issue number5
DOIs
Publication statusPublished - 2015 Nov

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Mitral Valve Annuloplasty
Mitral Valve Stenosis
Tomography
Blood Pressure
Mitral Valve
Pressure
Incidence
Echocardiography

All Science Journal Classification (ASJC) codes

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

Cite this

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title = "Assessment of mitral annuloplasty ring by cardiac computed tomography: Correlation with echocardiographic parameters and comparison between two different ring types",
abstract = "Objectives This study investigated computed tomographic (CT) appearance after mitral ring annuloplasty, especially comparing CT findings between patients with normal pressure gradient (PG) and patients with functional mitral stenosis (MS) and between 2 commonly used types of annuloplasty ring. Methods A total of 45 cardiac CT scans in patients who underwent mitral ring annuloplasty (Carpentier-Edwards ring, n = 27; Duran ring, n = 18) were retrospectively reviewed. On CT scan, presence of significant pannus around the annuloplasty ring, presence of leaflet thickening, and maximal mitral opening area were analyzed. CT findings were compared between patients with normal PG and patients with functional MS (mean diastolic PG ≥ 5 mm Hg). Incidences of functional MS and CT findings were compared between ring types. Results Significant pannus was present in 10 cases and leaflet thickening in 31 cases, and maximal opening area was 2.34 ± 0.717 cm 2 . Valve opening area on CT was positively correlated with mitral valve area on transthoracic echocardiography and negatively correlated with mean diastolic PG. Mean diastolic PG was significantly elevated with increasing pannus severity. Patients with functional MS had more significant pannus than patients with normal PG. The Duran ring group had higher mean diastolic PG, smaller mitral valve area, and higher incidence of functional MS than the Carpentier-Edwards ring group (P <.05). The proportion of pannus and significant pannus was significantly higher in the Duran ring group (P <.05). Conclusions Significant pannus around the annuloplasty ring on CT may cause functional MS after mitral ring annuloplasty. This may occur more frequently with the Duran ring.",
author = "Suh, {Young Joo} and Chang, {Byung Chul} and Im, {Dong Jin} and Kim, {Yun Jung} and Hong, {Yoo Jin} and Hong, {Geu Ru} and Kim, {Young Jin}",
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Assessment of mitral annuloplasty ring by cardiac computed tomography : Correlation with echocardiographic parameters and comparison between two different ring types. / Suh, Young Joo; Chang, Byung Chul; Im, Dong Jin; Kim, Yun Jung; Hong, Yoo Jin; Hong, Geu Ru; Kim, Young Jin.

In: Journal of Thoracic and Cardiovascular Surgery, Vol. 150, No. 5, 11.2015, p. 1082-1090.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Assessment of mitral annuloplasty ring by cardiac computed tomography

T2 - Correlation with echocardiographic parameters and comparison between two different ring types

AU - Suh, Young Joo

AU - Chang, Byung Chul

AU - Im, Dong Jin

AU - Kim, Yun Jung

AU - Hong, Yoo Jin

AU - Hong, Geu Ru

AU - Kim, Young Jin

PY - 2015/11

Y1 - 2015/11

N2 - Objectives This study investigated computed tomographic (CT) appearance after mitral ring annuloplasty, especially comparing CT findings between patients with normal pressure gradient (PG) and patients with functional mitral stenosis (MS) and between 2 commonly used types of annuloplasty ring. Methods A total of 45 cardiac CT scans in patients who underwent mitral ring annuloplasty (Carpentier-Edwards ring, n = 27; Duran ring, n = 18) were retrospectively reviewed. On CT scan, presence of significant pannus around the annuloplasty ring, presence of leaflet thickening, and maximal mitral opening area were analyzed. CT findings were compared between patients with normal PG and patients with functional MS (mean diastolic PG ≥ 5 mm Hg). Incidences of functional MS and CT findings were compared between ring types. Results Significant pannus was present in 10 cases and leaflet thickening in 31 cases, and maximal opening area was 2.34 ± 0.717 cm 2 . Valve opening area on CT was positively correlated with mitral valve area on transthoracic echocardiography and negatively correlated with mean diastolic PG. Mean diastolic PG was significantly elevated with increasing pannus severity. Patients with functional MS had more significant pannus than patients with normal PG. The Duran ring group had higher mean diastolic PG, smaller mitral valve area, and higher incidence of functional MS than the Carpentier-Edwards ring group (P <.05). The proportion of pannus and significant pannus was significantly higher in the Duran ring group (P <.05). Conclusions Significant pannus around the annuloplasty ring on CT may cause functional MS after mitral ring annuloplasty. This may occur more frequently with the Duran ring.

AB - Objectives This study investigated computed tomographic (CT) appearance after mitral ring annuloplasty, especially comparing CT findings between patients with normal pressure gradient (PG) and patients with functional mitral stenosis (MS) and between 2 commonly used types of annuloplasty ring. Methods A total of 45 cardiac CT scans in patients who underwent mitral ring annuloplasty (Carpentier-Edwards ring, n = 27; Duran ring, n = 18) were retrospectively reviewed. On CT scan, presence of significant pannus around the annuloplasty ring, presence of leaflet thickening, and maximal mitral opening area were analyzed. CT findings were compared between patients with normal PG and patients with functional MS (mean diastolic PG ≥ 5 mm Hg). Incidences of functional MS and CT findings were compared between ring types. Results Significant pannus was present in 10 cases and leaflet thickening in 31 cases, and maximal opening area was 2.34 ± 0.717 cm 2 . Valve opening area on CT was positively correlated with mitral valve area on transthoracic echocardiography and negatively correlated with mean diastolic PG. Mean diastolic PG was significantly elevated with increasing pannus severity. Patients with functional MS had more significant pannus than patients with normal PG. The Duran ring group had higher mean diastolic PG, smaller mitral valve area, and higher incidence of functional MS than the Carpentier-Edwards ring group (P <.05). The proportion of pannus and significant pannus was significantly higher in the Duran ring group (P <.05). Conclusions Significant pannus around the annuloplasty ring on CT may cause functional MS after mitral ring annuloplasty. This may occur more frequently with the Duran ring.

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