Dataset Information

Volumetric changes of the latissimus dorsi muscle after postoperative chemotherapy in cases of immediate breast reconstruction with an extended latissimus dorsi musculocutaneous flap and implant.

ABSTRACT: Background:This study aimed to evaluate the volume reduction of latissimus dorsi muscle in patients who underwent immediate breast reconstruction using extended latissimus dorsi musculocutaneous (eLDMC) flap with implant after skin/nipple sparing mastectomy (SSM/NSM) and postoperative chemotherapy (POCTx). Methods:We retrospectively reviewed clinical records of 19 patients who underwent this surgery with POCTx, and checked chest computer tomography (CT) at 7-10 days after surgery and 6-14 months after the end of chemotherapy, from May 2015 to October 2016. The motor nerve to latissimus dorsi muscle was severed in all patient. One plastic surgeon intervened and the follow up period was at least 18 months. Author obtained the area of latissimus dorsi muscle using the Picture Archiving and Communication System (PACS) in the axial view of the chest CT and it was verified by the experienced radiologist. The statistical test was performed (P<0.05). Results:There was statistically decrease in latissimus dorsi muscle volume after the end of POCTx, range from 51.5-77.5%, average volume decrease was 62%, compared with latissimus dorsi muscle volume of the CT taken 7-10 days postoperatively (P<0.05). After a minimum follow-up period of 18 months, 14 of the 19 cases were satisfactory for both the surgeon and the patient. In 4 patients, breast volume was symmetrical when wearing bra, but the outline of the 90 cc implant was unfavorable. One patient had a smaller size of reconstructed breast than the other. Conclusions:The size of the implant should be determined considering that average latissimus dorsi muscle reduction is 62%. Especially, the size of the implant should be chosen carefully if latissimus dorsi muscle is thick or it occupies a large portion of the entire flap.

SUBMITTER: Lee JW

PROVIDER: S-EPMC6842757 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Volumetric changes of the latissimus dorsi muscle after postoperative chemotherapy in cases of immediate breast reconstruction with an extended latissimus dorsi musculocutaneous flap and implant.

Lee Jae Woo JW Seo Jung Yeol JY Jung Youn Joo YJ Choo Ki Seok KS Kim Min Wook MW Park Tae Seo TS Bae Yong Chan YC Nam Su Bong SB Kim Hyun Yul HY

Gland surgery 20191001 5

<h4>Background</h4>This study aimed to evaluate the volume reduction of latissimus dorsi muscle in patients who underwent immediate breast reconstruction using extended latissimus dorsi musculocutaneous (eLDMC) flap with implant after skin/nipple sparing mastectomy (SSM/NSM) and postoperative chemotherapy (POCTx).<h4>Methods</h4>We retrospectively reviewed clinical records of 19 patients who underwent this surgery with POCTx, and checked chest computer tomography (CT) at 7-10 days after surgery ...[more]

PMID: 31741880

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Project description:OBJECTIVE:To study the value of 3D visualization technique in breast-preserving surgery for breast cancer with immediate breast reconstruction using laparoscopically harvested pedicled latissimus dorsi muscle flap. METHODS:From January, 2015 to May, 2016, 30 patients with breast cancer underwent breast-preserving surgery with immediate breast reconstruction using pedicled latissimus dorsi muscle flap. The CT data of the arterial phase and venous phase were collected preoperatively and imported into the self-developed medical image 3D visualization system for image segmentation and 3D reconstruction. The 3D models were imported into the simulation surgery platform for virtual surgery to prepare for subsequent surgeries. The cosmetic outcomes of the patients were evaluated 6 months after the surgery. Another 18 patients with breast cancer who underwent laparoscopic latissimus dorsi muscle breast reconstruction without using 3D visualization technique from January to December, 2014 served as the control group. The data of the operative time, intraoperative blood loss and postoperative appearance of the breasts were analyzed. RESULTS:The reconstructed 3D model clearly displayed the anatomical structures of the breast, armpit, latissimus dorsi muscle and vessels and their anatomical relationship in all the 30 cases. Immediate breast reconstruction was performed successfully in all the cases with median operation time of 226 min (range, 210 to 420 min), a median blood loss of 95 mL (range, 73 to 132 mL). Evaluation of the appearance of the breast showed excellent results in 22 cases, good appearance in 6 cases and acceptable appearance in 2 cases. In the control group, the median operation time was 283 min (range, 256 to 313 min) and the median blood loss was 107 mL (range, 79 to 147 mL) with excellent appearance of the breasts in 10 cases, good appearance in 4 cases and acceptable appearance in 4 cases. CONCLUSION:3D reconstruction technique can clearly display the morphology of the latissimus dorsi and the thoracic dorsal artery, allows calculation of the volume of the breast and the latissimus dorsi, and helps in defining the scope of resection of the latissimus dorsi to avoid injuries of the pedicled vessels. This technique also helps to shorten the operation time, reduce intraoperative bleeding, and improve the appearance of the reconstructed breast using pedicled latissimus dorsi muscle flap.

Dataset Information

Volumetric changes of the latissimus dorsi muscle after postoperative chemotherapy in cases of immediate breast reconstruction with an extended latissimus dorsi musculocutaneous flap and implant.

Publications

Volumetric changes of the latissimus dorsi muscle after postoperative chemotherapy in cases of immediate breast reconstruction with an extended latissimus dorsi musculocutaneous flap and implant.

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