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  • Title: Changes in sternal blood flow after different methods of internal thoracic artery harvesting.
    Author: Fokin AA, Robicsek F, Fokin A, Anderson JE.
    Journal: Thorac Cardiovasc Surg; 2004 Dec; 52(6):334-7. PubMed ID: 15573273.
    Abstract:
    OBJECTIVE: The study was designed to assess the early changes in sternal perfusion after midline sternotomy and different (skeletonized versus semiskeletonized) techniques of internal thoracic artery (ITA) harvesting. METHODS: The experiments were performed in the swine model. After midline sternotomy, ITA harvesting (skeletonized technique) was performed unilaterally in Group I (6 animals). The ITA and the internal thoracic vein (ITV) were harvested (semiskeletonized technique) in Group II (5 animals). The contralateral sternal half served as a control. Using a thermographic camera with a 0.06 degrees C sensitivity, sternal perfusion was assessed 2 and 5 hours after surgery. RESULTS: Midline sternotomy alone did not affect sternal blood flow. A statistically significant ( p < 0.05) reduction in perfusion of the involved sternal half in comparison to the control side was detected at 2 and 5 hours after surgery. The degree of perfusion deficit was not related to the harvesting technique. CONCLUSIONS: Skeletonized and semiskeletonized ITA harvesting techniques caused a similar acute reduction in sternal perfusion during the early postoperative period and this effect lasted for at least 5 hours.
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