Should Use of the Internal Thoracic Artery be Avoided Under Conditions of Low Free Flow? Postoperative Hemodynamic Assessment Using Pulsed Doppler Echocardiography

• Hata Mitsumasa

  Second Department of Surgery, Nihon University School of Medicine

• Shiono Motomi

  Second Department of Surgery, Nihon University School of Medicine

• Orime Yukihiko

  Second Department of Surgery, Nihon University School of Medicine

• Hata Hiroaki

  Second Department of Surgery, Nihon University School of Medicine

• Yagi Shinya

  Second Department of Surgery, Nihon University School of Medicine

• Yamamoto Tomonori

  Second Department of Surgery, Nihon University School of Medicine

• Tsukamoto Saeki

  Second Department of Surgery, Nihon University School of Medicine

• Okumura Haruhiko

  Second Department of Surgery, Nihon University School of Medicine

• Kimura Shunichi

  Second Department of Surgery, Nihon University School of Medicine

• Sezai Akira

  Second Department of Surgery, Nihon University School of Medicine

• Kashiwazaki Satoshi

  Second Department of Surgery, Nihon University School of Medicine

• Choh Shinsuke

  Second Department of Surgery, Nihon University School of Medicine

• Negishi Nanao

  Second Department of Surgery, Nihon University School of Medicine

• Sezai Yukiyasu

  Second Department of Surgery, Nihon University School of Medicine

• Tanigawa Naoshi

  Second Department of Internal Medicine, Nihon University School of Medicine

• Shindoh Atsushi

  Second Department of Internal Medicine, Nihon University School of Medicine

抄録

There are cases in which it is thought advisable to avoid the use of the left internal thoracic artery (LITA) in coronary artery bypass grafting (CABG) due to its low free flow (FF). However, even though the LITA flow is very low, anastomosis without any further maneuvers intraluminally is recommended. The present study investigated the clinical results of CABG, using a LITA with low FF. The 60 cases of CABG were divided into 2 groups: (i) Group L (n=23), in which LITA FF was less than 20 ml/min; and (ii) Group H (n=37), in which it was more than 20 ml/min. A comparative study on the basis of coronary angiography and pulsed Doppler echocardiography was performed. In both groups, no LITA graft occlusion was identified, and the `string sign' was also absent. In the LITA blood waveform, all cases exhibited a biphasic pattern with a higher mid-diastolic and a lower end-systolic component. There were no significant differences in the LITA flow diastolic peak velocity, velocity time integrals and the diastolic/systolic peak velocity ratios. These results suggest that the LITA can be used for CABG even when the free flow is less than 20 ml/min. (Jpn Circ J 1999; 63: 533 - 536)

収録刊行物

• JAPANESE CIRCULATION JOURNAL

  JAPANESE CIRCULATION JOURNAL 63 (7), 533-536, 1999

  社団法人 日本循環器学会

キーワード

• Coronary disease
• Blood flow
• Doppler echocardiography
• Internal thoracic artery

詳細情報

• CRID: 1390001206433191936
• NII論文ID: 110002572848
• NII書誌ID: AA00690731
• DOI: 10.1253/jcj.63.533
• COI: 1:STN:280:DyaK1MzovFWitA%3D%3D
• ISSN: 13474839
• ISSN: 00471828
• PubMed: 10462020
• Web Site: http://www.jstage.jst.go.jp/article/jcj/63/7/63_7_533/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1999253643
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可