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Related Experiment Video

Updated: Jan 30, 2026

Establishment of Deep Hypothermic Circulatory Arrest in Rats
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Dual inflow without circulatory arrest for hemiarch replacement.

Tae Yun Kim1, Kyung Hwa Kim2,3

  • 1Department of Thoracic and Cardiovascular Surgery, Chonbuk, National University Medical School, Chonbuk National University Hospital, 20 Geonji-Ro, Geumam-dong, Deokjin-gu, Jeonju, 54907, South Korea. kimtcs@naver.com.

Journal of Cardiothoracic Surgery
|January 12, 2019
PubMed
Summary

This study presents an alternative dual inflow technique for hemiarch replacement, potentially reducing bypass and ischemic times during aortic arch surgery. This method enhances organ protection during circulatory arrest.

Keywords:
Dual inflowHemiarch replacementNo circulatory arrest

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Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Aortic Surgery

Background:

  • Hemiarch replacement necessitates open distal graft to proximal aortic arch anastomosis.
  • Limited data exists on moderate hypothermia's efficacy for organ protection during aortic arch replacement's circulatory arrest (CA).
  • Standard techniques often overlook prolonged distal body CA effects, risking renal dysfunction and coagulopathy.

Observation:

  • A 72-year-old female presented with a giant ascending aorta aneurysm confined to the proximal aortic arch.
  • An alternative hemiarch replacement technique utilizing a dual inflow source was performed.

Findings:

  • The dual inflow technique offers a viable alternative for hemiarch replacement confined to the proximal aortic arch.
  • This approach may shorten bypass and ischemic times compared to standard methods.

Implications:

  • This technique may improve outcomes in specific aortic aneurysm cases.
  • Further research is needed to establish its broad applicability and long-term efficacy.
  • Optimizing organ protection during aortic arch surgery remains a critical area for clinical advancement.