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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_1054_Библиотеки_им_академика_М_И_Перельмана

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20 Chest Wall Perforator Flaps forPartial Breast Reconstruction
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Fig. 20.6 Demonstration of partial breast reconstruction with AICAP and MICAP
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Fig. 20.7 A 54-year-old with partial breast recon with AICAP, 120gm specimen, 45mm invasive carcinoma. Pre-op, 10months post-op, and 3months post-radiotherapy
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G. Shetty
20.5 Complications andManagement
The pedicled chest wall perforator aps generally have low morbidity [20, 21]. The specic complica- tions in the chest wall perforator aps reconstruc­tion are ap necrosis and fat necrosis. The literature on ap failure for CWPF is sparse. The fat necrosis is variable depending on the patient’s comorbidities and post-operative adjuvant treatment for carci-
noma (Fig.20.8). The comorbidities such as diabe­tes, smoking, and vasculopathy may increase the incidence of fat necrosis. Often it is very well toler­ated by patients and easily identied on surveillance mammogram. In rare cases, this can lead to further biopsies. If it is troublesome, especially after adju­vant radiotherapy, it can be managed with liposuc­tion and lipografting. The other signicant complications include haematoma, wound dehis­cence, seroma, and chronic pain.
Fig. 20.8 The early results of fat necrosis and suboptimal aesthetic results following partial breast reconstruction with anterior intercostal artery perforator ap
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20.6 Conclusion
Chest wall perforator ap for partial breast recon­struction is an innovative approach which is an effective and safe procedure for the outer quadrant and the lower quadrant breast tumours, especially in women with small to moderate breast size and high tumour to breast ratio. It is associated with low morbidity alongside good aesthetic outcome and avoids contralateral symmetrisation.
References
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8. Hu J, et al. The results of surveillance imaging after breast conservation surgery and partial breast
reconstruction with Chest Wall perforator aps; a qualitative analysis compared with standard breast­conserving surgery for breast cancer. Clin Breast Cancer. 2019;19(3):e422–7.
9. Agrawal SK, etal. Chest wall perforator aps in par­tial breast reconstruction after breast conservation surgery: an additional oncoplastic surgical option. Ecancermedicalscience. 2020;14:1073.
10. Youssif S, etal. Pedicled local aps: a reliable recon­structive tool for partial breast defects. Gland Surg. 2019;8(5):527–36.
11. Munhoz AM, et al. Immediate conservative breast surgery reconstruction with perforator aps: new challenges in the era of partial mastectomy recon­struction? Breast. 2011;20(3):233–40.
12. Lee JW, etal. Oncoplastic volume replacement tech­niques according to the excised volume and tumor location in small- to moderate-sized breasts. Gland Surg. 2014;3(1):14–21.
13. Meybodi F, et al. The modied lateral intercostal artery perforator ap. Plast Reconstr Surg Glob Open. 2019;7(2):e2066.
14. Petit J-Y, et al. Update on breast reconstruc­tion techniques and indications. World J Surg. 2012;36(7):1486–97.
15. Hamdi M, et al. Pedicled perforator aps in breast reconstruction: a new concept. Br J Plast Surg. 2004;57(6):531–9.
16. Hamdi M, De Frene B. Pedicled perforator aps in breast reconstruction. Semin Plast Surg. 2006;20:73–8.
17. Hamdi M, Spano A, Van Landuyt K, etal. The lateral intercostal artery perforators: anatomical study and clinical application in breast surgery. Plast Reconstr Surg. 2008;121:389–96.
18. McCulley SJ, etal. Lateral thoracic artery perforator (LTAP) ap in partial breast reconstruction. J Plast Reconstr Aesthet Surg. 2015;68(5):686–91.
19. Yang JD, et al. Usefulness of a lateral thora­codorsal ap after breast conserving surgery in laterally located breast cancer. Arch Plast Surg. 2013;40(4):367–73.
20. Soumian S, et al. Chest wall perforator aps for partial breast reconstruction: surgical out­comes from a multicenter study. Arch Plast Surg. 2020;47(2):153–9.
21. Roy PG, Tenovici AA. Staged approach to partial breast reconstruction to avoid mastectomy in women with breast cancer. Gland Surg. 2017;6(4):336–42.
Oncoplastic Reduction
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Mammoplasty andContralateral Symmetrisation
ShivangiSaha andManeeshSinghal
21
21.1 Oncoplastic Reduction Mammoplasty
It is an approach that combines the concept of
oncological clearance with bilateral reduction mammoplasty to achieve the best possible aes-
thetic result. Up to 40% of women treated with Breast Conservation Therapy (BCT) have been reported to have macromastia. Lumpectomy alone may not provide the best aesthetic results for these women. Moreover, BCT in a large­breasted woman can result in a heterogeneous radiation dose distribution, thus affecting onco­logical outcomes. This is suitable for women who have preoperative macromastia or ptosis, as well as those who have a high tumour-to-breast ratio and such that excision alone would be dis­guring. This approach allows for the removal of a considerable portion of the tumour while still offering high levels of patient satisfaction and outstanding aesthetic results.
S. Saha · M. Singhal (*) Department of Plastic Reconstructive and Burns Surgery, All India Institute of Medical Sciences, New Delhi, India
21.1.1 Patient Selection andPreoperative Assessment andPlanning
Before considering a patient for oncoplastic reduction mammoplasty, the clinician should obtain an accurate history and perform a physical examination. It is important to document the his­tory of smoking, diabetes, use of steroids, prior breast surgery, prior radiation to the chest area or connective tissue disorders as they can impact the wound healing process. The surgeon should also record the symptoms and severity of macromas­tia. The presence of any of these factors increases the risk of fat/nipple necrosis and delays wound healing.
The physical examination should record the body mass index, breast size and shape, scars of previous surgery, location of tumour, size of expected defect should be assessed and degree of ptosis should be noted. Any asymmetries between both the breasts should be brought to the patient’s notice as they may persist after the surgery.
The Breast width, Nipple Areola Complex (NAC) width, Sternal notch to nipple (SN-N) distance, and nipple to inframammary dis­tance should be measured (Fig. 21.1). A SN-N
distance change of more than 10 cm has poor results with vertical scar breast reductions. A SN-N distance of more than 35cm has the risk of jeopardising the circulation to the nipple through
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023 S. V. S. Deo (ed.), Breast Oncoplasty and Reconstruction,
https://doi.org/10.1007/978-981-99-5536-7_21
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Fig. 21.1 Standard measurements to be performed in the preoperative assessment
S. Saha and M. Singhal
the pedicle. Thus, the patient should be apprised of the risk of nipple necrosis and the possibility of a free nipple graft.
A suitable candidate for oncoplastic reduction
mammoplasty is:
• Someone who needs a large volume resection and has symptomatic macromastia (chronic headaches, back pain, neck pain, shoulder grooving, or intertriginous rashes) is a suitable candidate.
• A woman who desires smaller breasts.
• The extent to which the cancer surgeon is concerned about aesthetic abnormalities while resecting a sufcient specimen size is also a consideration in this procedure’s selection.
• According to Clough etal.’s [1] bi-level clas­sication, if 20–50% breast volume excision is anticipated, it is classied as a level II resec­tion and requires reshaping of the breast using mammoplasty techniques.
• All women with moderate-to-large breasts are still eligible for consideration.
• It can also be used in patients undergoing pri­mary cancer resection or in patients with prior lumpectomy with positive margins.
21.1.2 Timing oftheSurgery
• A single stage immediate reconstruction is
expected to produce a better psychological and aesthetic outcome and is thus preferred.
• A delayed reconstruction after conrmation
of negative margins is favoured in patients with extensive ductal carcinoma in situ (DCIS), especially in young patients, as it car­ries a higher risk of positive margins.
21.1.3 Choice ofIncision andPedicle
Pre-operatively, a skin pattern and NAC pedicle are planned and established based on tumour location to allow for tumour excision within the typical resection pattern for the specic reduction technique chosen, as well as lling of the antici­pated tumour defect with leftover breast tissue (Fig.21.2).
Once resection is performed on the side of the tumour, a symmetrisation procedure can be per­formed on the contralateral breast simultane­ously. The incisions most commonly used for mammoplasty are the wise or inverted T pattern or the vertical scar pattern.
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Fig. 21.2 Various options for reconstruction (Reduction mammoplasty technique and its variations) for each tumour location
21.1.3.1 Choice ofIncision
The most common oncoplastic approach is Wise pattern skin design with inferior pedicle reduc-
tion mammoplasty. This procedure combines upper pole or centrally located tumour removal
Several other incisions have been described, such as peri-areolar incision or batwing inci- sion for tumours located in the vicinity of the NAC, the lateral or medial incisions for tumours located in the respective positions.
with gland resection, resulting in a more pleasing appearance of a ptotic breast. The incision pat­tern preserves the skin aps’ viability while allowing sufcient access and exposure for the partial mastectomy.
The vertical scar approach was rst described by Lassus, and popularised by Lejour for cos­metic breast surgery. Since inferior pole and cen­tral subareolar tumours can be excised widely within the margins of the typical marks, the verti­cal scar technique is ideal for them. Smaller skin incisions, easier glandular excision, and a shorter pedicle providing consistent blood supply to the NAC are some of the advantages of this approach. During contralateral symmetrisation, the vertical scar technique additionally enables the elevation of the inframammary crease, which is unachiev­able with the wise pattern incision technique.
21.1.3.2 Choice ofPedicle
Superior, inferior, and medial pedicles are the most widely used pedicles.
The superior and supero-medial pedicle is
chosen because it is more reliable, and capable of preserving nipple sensation. The inability to manipulate the nipple over long distances is a limitation of this pedicle, particularly in individu­als with glandular and hypertrophic breast. Superior pedicles are best for tumours in the lower quadrants, especially in moderately sized breasts. With substantial reductions, where shap­ing may only result in superior fullness, using this pedicle may be challenging.
For tumours in any location, inferior pedicles
are versatile and dependable. Larger breasts with longer sternal notch to nipple distances, as well
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Fig. 21.3 Superior versus inferior Pedicle technique, and the location of tissue resection
S. Saha and M. Singhal
as tumours in the upper quadrants of the breast, are suitable candidates for this method. However, because it lacks parenchymal support, the breasts may sag or “bottom out,” leading to redundant skin and breast tissue between the nipple and the IMF (Fig.21.3).
For medial tumours that extend into the upper or lower quadrants, the lateral pedicle is an option. This pedicle is not frequently used for cosmetic breast reductions, because if the pedicle is too thick, the breast will be too full laterally. It is nor­mally reserved for women with small-to-moderate- sized breasts and who require a
blood supply and nerves to the nipple is limited by the length of the pedicle needed to carry the NAC into its new position and by the ability to reduce the breast with a large pedicle. The nipple areola complex is removed as a skin graft, the breasts are reduced, and the NAC is then sutured in the appropriate position on the breasts. This surgery causes the loss of nipple sensitivity as well as hypopigmentation, which takes at least a year to restore. When oncologic margins neces­sitate the excision of the nipple areola complex, it can be done without compromising breast shape as long as sufcient skin is maintained.
mastopexy or a minor reduction.
In patients with gigantomastia (excessive breast tissue that contributes 3% or more of the patient’s total body weight are the best candi­dates for free nipple grafting during reduction mammaplasty [2]. In such cases, preservation of
is a viable treatment. Wide tumour excision is combined with supero-medial NAC repositioning on a dermo-glandular pedicle, preventing lateral axial scar contraction and breast ptosis. The majority of reconstructions undertaken with this
For lateral pole cancers, lateral mammoplasty
21 Oncoplastic Reduction Mammoplasty andContralateral Symmetrisation
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approach have yielded good or exceptional results.
21.1.4 Steps ofSurgery
The markings are performed in the standing posi­tion (Figs.21.4, 21.5, 21.6, 21.7, 21.8, 21.9 and
21.10). The markings of wise pattern inferior
pedicle mammoplasty are being demonstrated
Fig. 21.6 Or by the marking of the inframammary crease onto the breast surface by the nger method, this is point A.
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Fig. 21.4 A straight vertical line joining the suprasternal point to the xiphoid is marked. The breast meridian is marked, which may/may not go through the nipple
Fig. 21.5 The proposed site of neo-nipple is marked by the Hall Findlay method
Fig. 21.7 The angle of the vertical limbs are marked, by placing the thumb and index nger of one hand and pinch­ing the breast about 6.5- 7 cms from point A. The other hand is used to mark the angle points. These are B (lateral) and C (medial) which are equidistant from the breast meridian. The angle decides the amount of resection and tightness of closure
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S. Saha and M. Singhal
Fig. 21.8 The medial limit of resection (point E) is marked by gently displacing the gland laterally
Fig. 21.9 The lateral limit of resection (point D) is marked on the breast gland by gently displacing the gland medially. The breast is elevated and the inframammary crease is marked, the point where the inframammary crease joins the breast meridian is also marked
Fig. 21.10 Straight lines are drawn to join points C to E and also from B to D. They should be adjusted so that they equal the line from the skin resection pattern is marked as described. The inferior pedicle is marked with a base width of 6 to 8 cms and is centered on the breast meridian, it extends for about 2 cms above the nipple areola complex.
here, as it is the most commonly performed pro­cedure especially for tumours located in the superior half and central location.
21.1.4.1 Reduction Mammoplasty Using Wise Pattern Scar (Inferior Pedicle Technique)
From the nipple areola complex to the inframa­mmary fold, the inferior pedicle is marked and de- epithelialized. The tissue along the medial and lateral borders of the pedicle is sharply divided, and the tumour is resected. The inferior pedicle is advanced to ll the space created by tumour resection, the gland is then re-approxi­mated with absorbable sutures, the inverted T scar is closed.
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21.1.4.2 Reduction Mammoplasty Using Lejour Vertical Scar (Superior Pedicle Technique)
The cuff of tissue all around the nipple areola complex is deepithelised. An inferior vertical incision is made, and tumour at the inferior pole with adequate margins are excised. The breast tissue medially and laterally is undermined in the retro-glandular plane, anterior to the pectoralis major and serratus anterior muscle. The medial and lateral breast pillars are re-approximated in layers and the overlying vertical skin incision is closed (Fig.21.11).
21.1.5 Margin Assessment
Similar to other oncoplastic techniques, reduc­tion mammoplasty techniques allow resection of wider margins, or resection of larger tumours. The margin assessment in a reduction mammo­plasty oncoplastic technique is performed similar to the other oncoplastic resections. The margins
can be assessed by specimen sonography, mam­mography or using a frozen section.
Once all the margins are adequately resected, generally hemoclips are installed (2 per site) on each resection cavity to mark the limits of exci­sion. Re-excision if needed is performed at least 1month after the previous surgery to allow for some consolidation of the seroma cavity. Another advantage of marking the cavity is to target the delivery of radiotherapy boost.
21.1.6 Post-Operative Radiation
Therapy
Following the healing of incisions, the second part of BCT is radiation therapy, which com-
mences 3 to 6weeks after the reduction proce­dure. Whole-breast irradiation, as well as other
treatments, are used. A boost is delivered to the tumour bed in order to eliminate any remaining microscopic cancer cells. Surgeons should avoid extensive skin-gland dissection and exceedingly
Fig. 21.11 Vertical scar reduction mammoplasty technique of Lejour