Time-dependent change in fresh autologous pericardium applied for posterior mitral annuloplasty: degree of calcification and its influence on the repaired mitral valve.

General Thoracic and Cardiovascular Surgery
Takashi MiuraShun Nakaji

Abstract

To investigate the degree of calcification of fresh autologous pericardium applied for posterior mitral annuloplasty and its influence on the repaired mitral valve. Thirty-nine patients (31 degenerative and 8 infective endocarditis; mean age at surgery: 62 ± 11 years) were enrolled in this study. Sixteen-slice multi-detector computed tomography was performed to identify calcification of autologous pericardium. The mean clinical follow-up was 4.6 ± 2.6 years (maximum 8.8 years) and the mean computed tomography follow-up period was 3.6 ± 2.5 years (maximum 7.6 years) after surgery. Pericardial calcification was detected in 15 patients. The earliest detection of calcification was 2.5 years after surgery. There was a weak correlation between pericardial calcification and postoperative years (Pearson's product correlation coefficient: 0.476; p = 0.0019). However, severe calcification of autologous pericardium did not occur in any case. There was no association between pericardial calcification and recurrent mitral regurgitation (p = 0.1145). The mean mitral valve orifice area and the mean transmitral pressure gradient in the 15 patients with calcification were 3.0 ± 0.6 cm(2) and 2.1 ± 1.0 mmHg, respectively. Calcification of the fr...Continue Reading

References

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Citations

Nov 6, 2012·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Karolina Akinosoglou, Efstratios Apostolakis
Oct 27, 2017·General Thoracic and Cardiovascular Surgery·Mitsuharu HosonoKohei Kawazoe

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