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Related Experiment Video

Updated: Aug 29, 2025

A Modified Technique for Transverse Aortic Constriction in Mice
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A Modified Technique for Transverse Aortic Constriction in Mice.

Kudusi Abuduwufuer1, James Jiqi Wang1, Huihui Li1

  • 1Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology.

Journal of Visualized Experiments : Jove
|September 5, 2022
PubMed
Summary

A novel, less invasive surgical method for transverse aortic constriction (TAC) in mice reduces trauma and simplifies procedures. This technique improves mouse recovery and simplifies cardiac hypertrophy and heart failure research.

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Area of Science:

  • Cardiovascular Surgery
  • Animal Models in Research
  • Cardiology

Background:

  • Transverse aortic constriction (TAC) is a key surgical model for studying heart failure and cardiac hypertrophy in mice.
  • Traditional TAC methods involve open-chest surgery (thoracotomy), leading to significant surgical trauma and requiring mechanical ventilation.
  • Challenges include precise visualization and ligation of the transverse aortic arch, complicating the procedure and recovery.

Purpose of the Study:

  • To develop a less invasive surgical approach for TAC in mice.
  • To simplify the procedure, reduce surgical trauma, and eliminate the need for mechanical ventilation.
  • To improve animal welfare and expedite research in cardiac hypertrophy and heart failure models.

Main Methods:

  • A novel surgical technique approaching the transverse aortic arch via the proximal sternum.
  • Utilizes a self-made retractor with a snare for precise vessel banding.
  • Performed without entering the pleural cavity, avoiding the need for a ventilator or microsurgery.

Main Results:

  • The modified procedure significantly reduces surgical trauma and operation time.
  • Mice maintain physiological breathing patterns throughout the surgery.
  • Animals exhibit fewer stress responses and demonstrate rapid recovery post-procedure.

Conclusions:

  • This less invasive TAC method simplifies the surgical process for researchers.
  • It offers a more humane and efficient approach to creating pressure overload models in mice.
  • The technique facilitates robust research into cardiac hypertrophy and heart failure with reduced animal distress.