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KMID : 1038220200470020146
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Archives of Plastic Surgery
2020 Volume.47 No. 2 p.146 ~ p.152
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Implications of abnormal abdominal wall computed tomographic angiography findings on postmastectomy free flap breast reconstruction
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Ngaage Ledibabari Mildred
Hamed Raed R.
Oni Georgette
Ghorra Dina T.
Ang Jolenda Z.
Koo Brendan C.
Benyon Sarah L.
Irwin Michael S.
Malata Charles M.
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Abstract
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Background: Preoperative computed tomography angiography (CTA) of the abdominal wall vessels is used when planning free flap breast reconstruction (FFBR) because it provides a surgical road map which facilitates flap harvest. However, there are few reports on the effect of abnormal findings on the operative plan.
Methods: We conducted a retrospective study of all FFBRs performed at a tertiary referral center over a 6-year period (November 2011 to June 2017). One consultant radiologist reported on the findings. Details on patient demographics, CTA reports, and intraoperative details were collected.
Results: Two hundred patients received preoperative CTAs. Fourteen percent of patients (n=28) had abnormal findings. Of these findings, 18% were vascular anomalies; 36% tumorrelated and 46% were “miscellaneous.” In four patients, findings subsequently prevented surgery; they comprised a mesenteric artery aneurysm, absent deep inferior epigastric (DIE) vessels, bilateral occluded DIE arteries, and significant bone metastases. Another patient had no suitable vessels for a free flap and the surgical plan converted to a pedicled transverse rectus abdominis musculocutaneous flap. The remaining incidental findings had no impact on the surgical plan or appropriateness of FFBR. More than one in 10 of those with abnormal findings went on to have further imaging before their operation.
Conclusions: CTA in FFBR can have a wider impact than facilitating surgical planning and reducing operative times. Incidental findings can influence the surgical plan, and in some instances, avoid doomed-to-fail and unsafe surgery. It is therefore important that these scans are reported by an experienced radiologist.
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KEYWORD
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Incidental findings, Computed tomography angiography, Free tissue flaps, Abdominal wall, Epigastric arteries
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