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KMID : 1037220190250030095
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Archives of Aesthetic Plastic Surgery
2019 Volume.25 No. 3 p.95 ~ p.102
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Volumetric changes of the pedicled transverse rectus abdominis musculocutaneous flap and the contralateral native breast during long-term follow-up
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Lee Taik-Jong
Cho Jeong-Mok
Jo Tae-Hee
Han Woo-Yeon
Maldonado Andres A.
Eom Jin-Sup
Kim Eun-Key
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Abstract
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Background: Serial volumetric changes of reconstructed breasts have not been studied in detail. In this study, we analyzed serial volumetric changes of reconstructed and contralateral normal breasts during long-term follow-up, with a focus on the effect of various adjuvant therapies.
Methods: Among all patients who underwent immediate breast reconstruction with a unilateral pedicled transverse rectus abdominis musculocutaneous (p-TRAM) flap, 42 patients with valid data from ≥3 postoperative positron emission tomography-computed tomography (PET-CT) scans were included. The volumes of the reconstructed and normal breasts were measured, and the ratio of flap volume to that of the contralateral breast was calculated. Serial changes in volume and the volume ratio were described, and the effects of chemotherapy, radiation therapy, and hormone therapy on volumetric changes were analyzed.
Results: The mean interval between the initial reconstruction and each PET-CT scan was 16.5, 30, and 51 months respectively. Thirty-five, 36, and 10 patients received chemotherapy, hormone therapy, and radiation therapy, respectively. The flap volume at each measurement was 531.0, 539.6, and 538.0 cm3, and the contralateral breast volume was 472.8, 486.4, and 500.8 cm3, respectively. The volume ratio decreased from 115.1% to 113.4%, and finally to 109.6% (P=0.02). Adjuvant therapies showed no significant effects.
Conclusions: We demonstrated that the p-TRAM flap maintained its volume over a long-term follow up, while the volume of the contralateral native breast slowly increased. Moreover, adjuvant breast cancer therapies had no statistically significant effects on the volume of the reconstructed p-TRAM flaps or the contralateral native breasts.
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KEYWORD
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Breast neoplasms, Drug therapy, Mammaplasty, Radiotherapy, Surgery, plastic
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