Role of Indocyanine Green Angiography in Free Flap Surgery: A Comparative Outcome Analysis of a Single-Center Large Series of 877 Consecutive Free Flaps.

Two of the three outcome parameters, namely, partial flap loss and re-exploration, showed a notably strong statistical significance. Table 2 summarizes all the results of the three major adverse outcomes as a comparison between the No-ICGA and ICGA groups and enlists the associated p- value. Partial flap loss rate dropped from 5% (22/439) in the No-ICGA group to 0.45% (2/438) in the ICGA group with a p- value < 0.001, which is highly significant.

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