Beatrix Munder

Morbidity of microsurgical breast reconstruction in patients with comorbid conditions.

Background: Although free tissue-transfer with the deep inferior epigastric perforator (DIEP) flap is one of the best forms of autologous breast reconstruction, surgeons have remained guarded over selecting patients for the procedure in the presence of comorbid conditions. This study has investigated the relevance of these conditions. Methods: A prospective review of all free flap breast reconstructions (n = 624) was performed over a 2-year period at the Department of Plastic Surgery at the Sana Kliniken Düsseldorf. Patients were placed into three groups based on comorbid conditions such as age 65 years or older, active smoking, and body mass index greater than or equal to 30. Flap and donor-site complications were analyzed. Results: Six hundred twenty-four breast reconstructions with DIEP or muscle-sparing transverse rectus abdominis musculocutaneous (TRAM) flaps were performed in 558 patients (66 bilateral reconstructions). There were 36 patients older than 65 years at the time of surgery, 94 active smokers, and 79 patients with a body mass index of greater than or equal to 30. Flap complications such as venous congestion (n = 5), partial flap loss (n = 10), marginal necrosis (n = 15), and total flap loss (n = 5) occurred in 35 cases (5.6 percent). Donor-site complications such as delayed abdominal wound healing (n = 9), seroma (n = 8), abdominal hernia (n = 3), and bulging (n = 11) occurred in 31 cases (5 percent). Conclusions: Despite having significantly higher complications in the form of delayed donor-site wound healing in active smokers and higher total flap loss in obese patients, the overall complication rates compared with other reconstructive procedures are low. Microsurgical reconstruction with DIEP and muscle-sparing TRAM flaps is associated with low complication rates, excellent aesthetic outcome, and high patient satisfaction, even in patients with known risk factors.

Improved safety of autologous breast reconstruction surgery by stabilisation of microsurgical vessel anastomoses using fibrin sealant in 349 free DIEP or fascia-muscle-sparing (fms)-TRAM flaps: A two-centre study

BACKGROUND We routinely perform free DIEP flap and fascia-muscle-sparing (fms) TRAM flap procedures using fibrin sealant to stabilise anastomosed vessels, thus avoiding some of the difficulties associated with microsurgical anastomoses. METHODS Women undergoing elective, autologous breast reconstruction with free DIEP flaps or fms-TRAM flaps between June 2004 and June 2007 in two Interdisciplinary Breast Centres were included in a retrospective chart review. RESULTS A total of 349 breast reconstructions were performed in 325 women. Of these, 201 (57.6%) were free DIEP flap procedures and 148 (42.4%) were fms-TRAM flap procedures. Average hospital stay was 9.8 days. Complete flap loss was seen in 3 cases (0.9%). Low rates of post-operative complications were observed. CONCLUSIONS Microsurgical breast reconstruction using free DIEP flaps and fms-TRAM flaps, with fibrin sealant for stabilisation of microvascular anastomoses, provides good post-operative outcome featuring a low incidence of flap loss or other common post-operative complications.

A single center prospective study of bilateral breast reconstruction with free abdominal flaps: A critical analyses of 144 patients

Background Bilateral breast reconstruction utilising autologous free tissue transfer is a complex procedure with multiple options for donor tissue available. Autogenous breast reconstruction techniques have evolved over the last three decades to meet this goal. The aim of this study was to determine the outcomes of patients undergoing bilateral breast reconstruction with DIEAP, TRAM or SIEA flaps. Material/Methods A prospective study was performed in our Interdisciplinary Breast Centre from July 2004 until December 2011 in 144 patients. Demographic information, diabetes mellitus type I status, tobacco use, tumor stage, primary/secondary reconstruction, operative technique, adjuvant therapy received, length of follow-up, and complications were evaluated. Complications were divided into donor site and recipient site. To investigate which risk factors were independently related to flap loss (complete or partial), multiple linear regression analysis was performed. Results The study identified 144 patients who had bilateral breast reconstruction with DIEAP, TRAM or SIEA flaps. For all flaps (n=248), outcome included 98.4% survival and 0.7% vein microanastomosis revision. Recipient site complications included 1.6% complete flap loss, 0.8% fat necrosis, 2.9% partial skin loss/dehiscence flap necrosis and 2.0% haematoma rate. Donor site complications included 3.7% partial skin loss/dehiscence. There was evidence of abdominal bulges in TRAM patients (1.1%) but no hernias in any patients. BMI is a major determinant of flap loss (complete or partial) in these patients. Conclusions The primary goal of bilateral breast reconstruction is to provide a treatment option that can create a natural, symmetric breast mounds with minimal donor-site morbidity following bilateral mastectomies. These results support weight loss therapy prior to bilateral breast reconstruction.

Detecting of breast cancer metastasis by means of regional lymph node sampling during autologous breast reconstruction – a screening of 519 consecutive patients

Summary Background The internal mammary artery and vein is often used as a site of anastomoses in microvascular breast reconstruction. This area supports lymphatic drainage of the breast and its role in breast cancer metastasis remains unclear. We hypothesize that sampling of internal mammary lymph nodes at the time of microvascular anastomoses preparation may identify persistent or recurrent local disease and mandate the need for additional treatment in this area. Material/Methods A retrospective chart review from 519 patients in the time between January 2006 and September 2009 was performed on all patients who underwent internal mammary lymph node sampling at the time of microvascular breast reconstruction. Results Microvascular breast reconstruction was performed in 519 patients. Enlarged internal mammary lymph nodes were found and harvested in 195 patients for histological review. Six of 195 (3.08%) were found positive for metastatic disease requiring additional oncologic treatment. Conclusions The internal mammary lymphatic drainage system is an important and often underappreciated pathway for breast metastasis. Routine sampling of these lymph nodes at the time of microvascular breast reconstruction is easy to perform and is a useful tool to identify women, who might require additional treatment and increase cancer-free survival.

DIEAP flap for safe definitive autologous breast reconstruction.

BACKGROUND Breast cancer is the commonest form of cancer in women affecting almost a quarter of a million patients in the US annually. 30 percent of these patients and patients with genetic mutations undergo removal of the breast, as highlighted in a high profile celebrity patient. Although breast reconstruction with free microvascular transfer of a DIEAP flap from the abdomen is an ideal form of reconstruction, there have been misgivings about the complexity and potential complications. This study was aimed at clearing these misunderstandings and establishing the value of this form of breast reconstruction. METHODS 1036 DIEAP flap breast reconstructions carried out at the University Hospital, Gent (five year period) and at the Sana Kliniken, Düsseldorf (three year period) were included prospectively. Comorbid factors like chemotherapy, radiotherapy, patient age >65 years, BMI >30 and smoking were recorded. Outcomes were evaluated over a mean follow up of 2 years. RESULTS Overall complication rate related to the reconstructed breast and donor abdominal area was 6.8 percent. Total flap loss was seen in only 0.8 percent. The mean operating time was less than five hours. Older age, higher BMI, chemotherapy and radiotherapy did not have a significant influence on complication rates, however smoking resulted in significant delay in wound healing in the breast (p = 0.025) and abdominal wounds (p = 0.019). CONCLUSION The DIEAP flap is an excellent option for breast reconstruction, with a low level of donor site morbidity and complications. It is an autologous reconstruction that provides a stable long term result.

Skin-sparing mastectomy and immediate reconstruction with DIEP flap after breast-conserving therapy

Summary Background Currently about 70% of women who suffer from breast cancer undergo breast-conserving therapy (BCT) without removing the entire breast. Thus, this surgical approach is the standard therapy for primary breast cancer. If corrections are necessary, the breast surgeon is faced with irritated skin and higher risks of complications in wound healing. After radiation, an implant-based reconstruction is only recommended in selected cases. Correction of a poor BCT outcome is often only solved with an additional extended operation using autologous reconstruction. Material/Methods In our plastic surgery unit, which focuses on breast reconstruction, we offer a skin-sparing or subcutaneous mastectomy, followed by primary breast reconstruction based on free autologous tissue transfer to correct poor BCT outcomes. Between July 2004 and May 2011 we performed 1068 deep inferior epigastric artery perforator (DIEP) flaps for breast reconstruction, including 64 skin-sparing or subcutaneous mastectomies, followed by primary DIEP breast reconstruction procedures after BCT procedures. Results In all free flap-based breast reconstruction procedures, we had a total flap loss in 0.8% (9 cases). Within the group of patients after BCT, we performed 41 DIEP flaps and 23 ms-2 TRAM flaps after skin-sparing or subcutaneous mastectomies to reconstruct the breast. Among this group we had of a total flap loss in 1.6% (1 case). Conclusions In cases of large tumour sizes and/or difficult tumour locations, the initial oncologic breast surgeon should inform the patients of a possibly poor cosmetic result after BCT and radiation. In our opinion a skin-sparing mastectomy with primary breast reconstruction should be discussed as a valid alternative.

Increased risk of recurrence associated with certain risk factors in breast cancer patients after DIEP-flap reconstruction and lipofilling—a matched cohort study with 200 patients

BACKGROUND Lipofilling is performed in breast cancer patients to optimize the aesthetic outcome following breast reconstruction after mastectomy. Despite its common usage worldwide, little is known about the interaction of the lipoaspirate and dormant cancer cells. Up to date, no risk factors that increase the risk for cancer recurrence have been established. This study aims to identify risk factors for lipofilling candidates after breast cancer and questions the oncological safety of lipofilling in lymph node positive disease. METHODS Matched retrospective cohort study: the disease-free survival (DFS) between 100 breast cancer patients undergoing a lipofilling after their DIEP-flap reconstruction and 100 matched control patients with no subsequent lipofilling was analyzed. Further, patients were subdivided according to risk factors, which were categorized as patient-dependent factors (PDFs) and tumor-dependent factors (TDFs). DFS and hazard ratios (HR) were compared to identify potential risk factors that may increase cancer recurrence. RESULTS Median follow-up was 76.5 months from the mastectomy, and 31 months from the startpoint to the end of follow-up. Seven and eleven patients had recurrence in the lipofilling and control group, respectively, presenting with comparable DFS rates and an insignificant HR =0.57, 95% confidence interval (CI): 0.22-1.47, P=0.24. According to subgroup survival analysis, lipofilling increased the risk of recurrence in women with a positive nodal status (P=0.035) and a high-grade neoplasia (P=0.049). CONCLUSIONS No general increased recurrence risk was observed between the lipofilling and control group. The subgroup analysis identified high-grade neoplasia and positive nodal status to be a risk factor for cancer recurrence. Patients with a known node positive disease have an increased risk of occult micrometastases in their lymph nodes. Further studies are necessary to clarify whether dormant breast cancer cells in form of micrometastases in the lymph nodes can be reactivated by the factors secreted by adipose derived stem cells.

Conservative mastectomies and Immediate-DElayed AutoLogous (IDEAL) breast reconstruction: the DIEP flap

BACKGROUND With the development of conservative mastectomies, there are an increasing number of women seeking immediate implant based and autologous breast reconstruction. Despite the oncologic safety of the procedures, the focus will be on the timing of reconstruction. METHODS Our plastic surgery unit is focused primarily on autologous breast reconstruction and is part of an interdisciplinary breast center. We offer immediate breast reconstruction (IBR) with autologous tissue for patients with positive BRCA 1 and 2, ductal carcinoma in situ (DCIS), invasive cancer without margin problems to the skin, as well as to correct poor oncologic and aesthetic breast conserving therapy (BCT) outcomes. In the majority of cases we prefer an Immediate-DElayed AutoLogous (IDEAL) breast reconstruction concept with a two-stage procedure. RESULTS Over the last 10 years we performed more than 1,600 breast reconstructions with free flaps, performing the deep inferior epigastric perforator (DIEP) flap as our first choice for autologous tissue. We recommend IDEAL breast reconstruction, however approximately 15% of our cases are immediate one stage conservative mastectomies and breast reconstruction with the DIEP flap. CONCLUSIONS For immediate reconstruction, the aesthetic outcome should not take precedence over oncologic considerations. Immediate one-stage, breast reconstruction with autologous tissue can be offered to the suitable patients which is most likely a healthy women with a small-to-medium sized non ptotic breast receiving a conservative mastectomy. In all other cases, we recommend an IDEAL breast reconstruction approach in order to achieve a final result that is both satisfyingly pleasing and oncologically safe.

Immediate-DElayed AutoLogous (IDEAL) Breast Reconstruction with the DIEP Flap

Background: The most common cancer worldwide in women is breast cancer. The increasing number of cases each year, requires a novel curative approach that can combine oncological treatments and breast reconstruction yielding a pleasing and aesthetic breast that is a definitive and long lasting solution. Thus, the Immediate-DElayed AutoLogous (IDEAL) breast reconstruction principle was created to hold up to the standards of the needs of contemporary women. METHOD The IDEAL protocol for breast reconstruction was developed in our department in cooperation with our breast surgery unit and describes a two-stage approach that implicates neoadjuvant radio-/ chemotherapy treatment regimes and tumor staging before the mastectomy in order to avoid post-mastectomy radiation. In a second step the breast is then reconstructed with autologous tissue for optimal and natural results. CONCLUSION More and more patients decide to undergo breast reconstruction after breast cancer. The IDEAL concept offers a life-long and safe solution with a low rate of late complications.

Microsurgical Breast Reconstruction in Presence of Co-morbidities

Free tissue-transfer with DIEAP (Deep inferior epigastric artery perforator) flaps is one of the best forms of autologous breast reconstruction. It is a microsurgical procedure and surgeons have remained guarded over selecting patient with co-morbidities. This chapter looks into the relevance of patient related co-morbid conditions and the associated complication rates. Despite having significantly higher complications in form of delayed donor area wound healing in active smokers and higher total flap loss in obese patients the overall complication rate compared to other reconstructive procedures is low. Microsurgical reconstruction with DIEAP flap results in an excellent aesthetic outcome with high patient satisfaction, but low complication rates, even in patients with known co-morbid conditions.