[Change of Gaze Pattern depending on the Stage of DIEP Flap Breast Reconstruction: a Preliminary Eye-Tracking Investigation].

[BACKGROUND] Breast reconstruction using autologous tissue is an integral part of breast cancer treatment. While many studies have elucidated the impact of breast reconstruction on patients' quality of life, self-esteem, sexuality and more, there is a lack of objective data regarding the effects on external observers. Aim of this study was to investigate the change in gaze pattern of independent observers depending on the stage of DIEP-flap breast reconstruction.

[MATERIALS AND METHODS] Eye-tracking technology was utilized to analyze the eye movements of 58 study participants while viewing 2 D photographs of a patient after mastectomy and different stages of DIEP-flap breast reconstruction. Time until first fixation and total time of fixation were recorded and con- secutively analyzed for the right and left breast on each image.

[RESULTS] Overall, the total time of fixation of the operated breast decreased significantly over the different stages of breast reconstruction, with p<0.001. At the same time, there was no statistically significant change in total time of fixation of the non-operated breast, with p=0.174. The time until first fixation showed a significant increase over the different stages of reconstruction for the reconstructed breast, with p<0.001, while no significant differences were found for the opposite breast, with p=0.344.

[CONCLUSION] Mastectomy and the individual steps of breast reconstruction alter the perception of breast cancer patients. Over the course of breast reconstruction, the deviation of gaze in the direction of the affected breast is reversed.