論文

国際誌
2016年7月

Aortic valve replacement with a 17-mm mechanical prosthesis in octogenarian or older patients.

The Journal of thoracic and cardiovascular surgery
  • Tatsuya Ogawa
  • ,
  • Masahiko Onoe
  • ,
  • Souji Moriwaki
  • ,
  • Keisuke Shioji
  • ,
  • Ayumi Iwamuro
  • ,
  • Takashi Uegaito
  • ,
  • Mitsuo Matsuda

152
1
開始ページ
112
終了ページ
7
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jtcvs.2016.02.037

OBJECTIVE: Few studies have reported on aortic valve replacement (AVR) in patients aged >80 years who have small aortic annuli. Various surgical techniques have been proposed for treating such patients. We investigated AVR using small-diameter mechanical valves, in patients aged >80 years, to determine its effectiveness. METHODS: Eighteen consecutive patients (15 women; 3 men) aged >80 (mean: 83.3 ± 2.7) years underwent surgical AVR with a 17-mm prosthesis. The clinical status and results of pre- and post-operative echocardiography were evaluated. Midterm examination was conducted at 12.0 ± 1.0 months after AVR. RESULTS: The average preoperative body surface area of the patients was 1.39 ± 0.15 m(2); the average New York Heart Association functional class was 3.28 ± 0.75. Echocardiography showed a peak pressure gradient of 99.1 ± 38.4 mm Hg. Operative mortality was absent. A significant decrease in the peak pressure gradient was found on early (22.6 ± 7.2 mm Hg) and midterm (22.2 ± 8.0 mm Hg) postoperative echocardiography, compared with that in the preoperative period. During this follow-up, 16 patients improved to class I, a significant change in each perioperative period compared with the preoperative period. No mortality was observed at 1 year postoperatively. CONCLUSIONS: In patients aged >80 years who have small aortic annuli, AVR using a 17-mm prosthesis showed satisfactory clinical and hemodynamic results and provided a satisfactory remote prognosis.

リンク情報
DOI
https://doi.org/10.1016/j.jtcvs.2016.02.037
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/27016790
ID情報
  • DOI : 10.1016/j.jtcvs.2016.02.037
  • PubMed ID : 27016790

エクスポート
BibTeX RIS