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Dive into the research topics where Eduardo Montag is active.

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Featured researches published by Eduardo Montag.


Plastic and Reconstructive Surgery | 2006

Critical analysis of reduction mammaplasty techniques in combination with conservative breast surgery for early breast cancer treatment.

Alexandre Mendonça Munhoz; Eduardo Montag; Eduardo Arruda; Claudia Aldrighi; Rolf Gemperli; José Mendes Aldrighi; Marcus Castro Ferreira

Background: Although reduction mammaplasty is a well-described technique for aesthetic purposes, there are few previous reports regarding its application and clinical outcome following conservative breast surgery reconstruction. The purpose of this study was to analyze the feasibility of the technique and its outcome following conservative breast surgery. Methods: Oncologic data and information on age, body mass index, smoking history, and comorbid conditions were collected. Reconstructed and opposite breast complications were evaluated. Reduction mammaplasty was indicated to reconstruct moderate breast defects in patients with enough remaining breast tissue. Mean follow-up was 22 months. Results: Seventy-four patients underwent immediate reduction mammaplasty following breast-conserving surgery. In 55.4 percent of patients, tumors measured 2 cm or less (T1) and in 47.2 percent they were located in the upper outer quadrants. Breast complications occurred in 13 patients (17.6 percent), with skin necrosis in six (8.1 percent), infection in two (2.7 percent), partial areola necrosis in two (2.7 percent), dehiscence in two, and total areola necrosis in one (1.35 percent). Late complications represented by skin lesions and fat necrosis were observed in five patients (6.8 percent). Obese patients and smokers had a significantly higher rate of reconstructed breast complications compared with the normal/overweight patients (p = 0.002) and nonsmokers (p = 0.043). No significant association between complications and age, hypertension, diabetes, axillary lymph node dissection, or chemotherapy was found. Conclusions: Reduction mammaplasty is a consistent technique for reconstruction following breast-conserving surgery. Complications are more often observed in the reconstructed breast, and obese patients and smokers are higher risk patients.


Plastic and Reconstructive Surgery | 2005

Outcome analysis of breast-conservation surgery and immediate latissimus dorsi flap reconstruction in patients with T1 to T2 breast cancer

Alexandre Mendon a Munhoz; Eduardo Montag; Klaus Werner Fels; Eduardo Arruda; Gustavo Sturtz; Claudia Aldrighi; Rolf Gemperli; Marcus Castro Ferreira

Background: The latissimus dorsi myocutaneous flap is frequently used for total breast reconstruction; however, few reports have been available regarding clinical outcome following conservative breast surgery. The aim of this study was to perform a retrospective review on 48 patients undergoing immediate latissimus dorsi myocutaneous flap surgery following conservative breast surgery between 1999 and 2004. Methods: Information on age, body mass index, smoking history, comorbid medical conditions, and oncologic status was collected. Reconstructed breast and donor-site complications were evaluated. Results: Mean follow-up was 16 months. In 56.2 percent of patients, tumors measured 2 cm or less (T1) and in 47.9 percent were located in the upper outer quadrants. Flap complications occurred in seven and donor-site complications occurred in 12 of 48 patients. Dorsal seroma (20.8 percent), dorsal dehiscence (6.2 percent), and partial flap loss (6.2 percent) were the most common complications. Surgical intervention with skin suture was necessary in two cases of dorsal wound dehiscence. Partial flap losses were limited and were treated by a conservative approach. A significant as-sociation (p =0.035) was detected between dorsal seroma and obesity (body mass index ≥ 30 kg/m2) and was associated with a 5.2-fold increase in the odds of developing this complication. No significant association between complications and age, smoking history, hypertension, diabetes, axillary lymph node dissection, or chemotherapy was found. Conclusions: On the basis of our observations, the latissimus dorsi myocutaneous flap is a consistent technique for reconstruction following conservative breast surgery. Donor-site complications are more often observed in those who are obese; they are higher risk patients.


Plastic and Reconstructive Surgery | 2004

Importance of lateral row perforator vessels in deep inferior epigastric perforator flap harvesting

Alexandre Mendonça Munhoz; Luis Henrique Ishida; Gustavo Sturtz; Marcelo Sacramento Cunha; Eduardo Montag; Fabio Lopes Saito; Rolf Gemperli; Marcus Castro Ferreira

Free flaps based on perforator vessels, and in particular the deep inferior epigastric perforator (DIEP) flap, are currently being applied in abdominal reconstruction. However, one of the main disadvantages is the operative complexity. Through anatomical study and clinical experience with the DIEP flap in breast reconstruction, the intramuscular path of the perforator vessels was comparatively studied, to establish the main anatomical parameters that favor procedure planning. Thirty DIEP flaps from 15 fresh cadavers were used. The number, location, and intramuscular course of the perforator vessels were determined. In addition, an initial clinical study was performed in 31 patients using 35 DIEP flaps in breast reconstruction. The number, location, and the intramuscular course of the perforators were assessed. In the cadaver study, 191 perforator vessels were detected (6.4 vessels per flap). Thirty-four percent were located in the lateral row, and the rectilinear course was observed in 79.2 percent of these vessels. In the medial row, only 18.2 percent of the perforator vessels presented this configuration (p = 0.001). Thirty-one patients underwent DIEP flap breast reconstruction, with 26 immediate and four bilateral reconstructions. In 22 of 35 flaps (62.9 percent), two perforators were used. In 25 flaps (71.4 percent), the lateral row perforators with a rectilinear course were observed. Mean operative time was 7 hours and 37 minutes. Two total flap losses and two partial necroses were observed. The majority of the lateral row perforators presented a rectilinear intramuscular course, which was shorter than that of the medial row perforators. This anatomical characteristic favors dissection with reduced operative time and vascular lesion morbidity, resulting in an important anatomical parameter for DIEP flap harvesting.


Plastic and Reconstructive Surgery | 2006

The role of the lateral thoracodorsal fasciocutaneous flap in immediate conservative breast surgery reconstruction.

Alexandre Mendonça Munhoz; Eduardo Montag; Eduardo Arruda; Claudia Aldrighi; Rolf Gemperli; José Mendes Aldrighi; Marcus Castro Ferreira

Background: Although the lateral thoracodorsal fasciocutaneous flap is a well-studied procedure for late breast reconstruction following radical surgery, there are few previous reports regarding its indication, flap design, and clinical outcome following conservative breast surgery. Methods: Thirty-four patients underwent immediate unilateral lateral thoracodorsal fasciocutaneous flap breast reconstructions. Mean time of follow-up was 23 months. The lateral thoracodorsal fasciocutaneous flap was indicated to reconstruct moderate lateral breast defects where there was not enough breast tissue to perform the reconstruction. Flap and donor-site complications were evaluated. Information on aesthetic results and patient satisfaction was collected. Results: All tumors were located in lateral breast regions, and 64.7 percent measured 2 cm or less (T1). Flap complications occurred in four patients (11.8 percent), with partial flap necrosis in three (8.8 percent). Donor-site complications occurred in eight (23.5 percent), with seroma in five (14.7 percent) and wound dehiscence in three (8.8 percent). The cosmetic result was considered to be good or very good in 88.2 percent, and the majority of patients were either very satisfied or satisfied. Surgical intervention was necessary in two cases of wound dehiscence. Serial dorsal puncture in cases of seroma were performed with satisfactory results. Conclusions: The lateral thoracodorsal fasciocutaneous flap is a simple and reliable technique for conservative breast surgery reconstruction. Success depends on patient selection, coordinated planning with the oncologic surgeon, and careful intraoperative management.


Plastic and Reconstructive Surgery | 2007

Periareolar Skin-sparing Mastectomy and Latissimus Dorsi Flap with Biodimensional Expander Implant Reconstruction: Surgical Planning, Outcome, and Complications

Alexandre Mendonça Munhoz; Claudia Aldrighi; Eduardo Montag; Eduardo Arruda; José Mendes Aldrighi; José Roberto Filassi; Marcus Castro Ferreira

Background: Although use of the latissimus dorsi myocutaneous flap associated with the Biodimensional anatomical expander implant system (McGhan 150) is a reliable technique, little information has been available regarding clinical outcome following periareolar skin-sparing mastectomy reconstruction. The purpose of this study was to analyze the feasibility of the technique, surgical planning, and its outcome following skin-sparing mastectomy. Methods: Thirty-two patients underwent immediate unilateral latissimus dorsi myocutaneous flap/Biodimensional anatomical expander implant system breast reconstruction. Mean follow-up was 18 months. The technique was indicated in patients with small- or moderate-volume breasts with or without ptosis, in whom the use of abdominal flaps was precluded. Flap and donor-site complications were evaluated. Information on anesthetic results and patient satisfaction was collected. Results: Seventy-two percent had tumors measuring 2 cm or less (T1) and 78 percent were stage 0 and I according to American Joint Committee on Cancer criteria. Breast skin complications occurred in 9.4 percent. Two patients presented small breast skin necrosis, and in one patient, a wound dehiscence was observed. Donor-site complications, all represented by seroma, occurred in 12.5 percent. The cosmetic result was considered good or very good in 84.4 percent, and the majority of patients were either very satisfied or satisfied. No local recurrences were observed. All complications except two were treated by conservative means. Conclusions: The latissimus dorsi myocutaneous flap/Biodimensional anatomical expander implant system is a simple and reliable technique for periareolar skin-sparing mastectomy reconstruction. Success depends on patient selection, coordinated planning with the oncologic surgeon, and careful intraoperative and postoperative management.


Aesthetic Plastic Surgery | 2006

Subfascial Transaxillary Breast Augmentation Without Endoscopic Assistance: Technical Aspects and Outcome

Alexandre Mendonça Munhoz; Klaus Fells; Eduardo Arruda; Eduardo Montag; Alberto Okada; Claudia Aldrighi; José Mendes Aldrighi; Rolf Gemperli; Marcus Castro Ferreira

BackgroundAlthough transaxillary breast augmentation (TBA) is a well-studied procedure, few previous reports exist concerning the subfascial technique, especially without endoscopic assistance. This study aimed to analyze the feasibility of the technique after breast augmentation in terms of its indication, surgical technique, limitations, and clinical outcome.MethodsFor this study, 42 patients underwent TBA without endoscopic assistance. The technique was indicated for patients with breasts of small or moderate volume without ptosis, patients who wanted no breast scars, and patients who had a poorly defined inframammary fold. The mean follow-up period was 16 months. Implant and incision approach complications were evaluated. Information on patient satisfaction was collected.ResultsA total of 14 complications occurred in 42 patients, all of them minor. Axillary incision–related complications occurred in 26% of the patients, as represented by a late axillary subcutaneous band (119%), sensory loss in the inner aspect of the arm (71%), and a hypertrophic scar and small wound dehiscence (71%). No patient presented with capsular contracture, visible rippling, or infection. Most of the patients (93%) were either very satisfied or satisfied with their result, and none regretted the surgery.ConclusionThe TBA procedure without endoscopic assistance is a simple and reliable technique for breast augmentation. Most of the complications in this study were minor and predictable. They did not interfere with the aesthetic outcome nor the normal postoperative recovery. With TBA, success depends on patient selection as well as careful intra- and postoperative management.


World journal of clinical oncology | 2014

Immediate nipple-areola-sparing mastectomy reconstruction: An update on oncological and reconstruction techniques

Alexandre Mendonça Munhoz; Eduardo Montag; José Roberto Filassi; Rolf Gemperli

Nipple-sparing mastectomy (NSM) is a safe technique in patients who are candidates for conservation breast surgery. However, there is worry concerning its oncological safety and surgical outcome in terms of postoperative complications. The authors reviewed the literature to evaluate the oncological safety, patient selection, surgical techniques, and also to identify the factors influencing postoperative outcome and complication rates. Patient selection and safety related to NSM are based on oncological and anatomical parameters. Among the main criteria, the oncological aspects include the clinical stage of breast cancer, tumor characteristics and location including small, peripherally located tumors, without multicentricity, or for prophylactic mastectomy. Surgical success depends on coordinated planning with the oncological surgeon and careful preoperative and intraoperative management. In general, the NSM reconstruction is related to autologous and alloplastic techniques and sometimes include contra-lateral breast surgery. Choice of reconstructive technique following NSM requires accurate consideration of various patient related factors, including: breast volume, degree of ptosis, areola size, clinical factors, and surgeons experience. In addition, tumor related factors include dimension, location and proximity to the nipple-areola complex. Regardless of the fact that there is no unanimity concerning the appropriate technique, the criteria are determined by the surgeons experience and the anatomical aspects of the breast. The positive aspects of the technique utilized should include low interference with the oncological treatment, reproducibility, and long-term results. Selected patients can have safe outcomes and therefore this may be a feasible option for early breast cancer management. However, available data demonstrates that NSM can be safely performed for breast cancer treatment in selected cases. Additional studies and longer follow-up are necessary to define consistent selection criteria for NSM.


Annals of Plastic Surgery | 2006

Superior-medial dermoglandular pedicle reduction mammaplasty for immediate conservative breast surgery reconstruction : Technical aspects and outcome

Alexandre Mendonça Munhoz; Eduardo Montag; Eduardo Arruda; Claudia Aldrighi; Rolf Gemperli; José Mendes Aldrighi; Marcus Castro Ferreira

Background:Reduction mammaplasty procedures and especially the superior-medial dermoglandular pedicle (SMDP) technique are frequently used for esthetic objectives; however, few reports have been available regarding its application following conservative breast surgery reconstruction. The purpose of this study is to analyze the feasibility of the technique and describe the surgical planning and its outcome following oncologic surgery. Methods:Thirty-nine patients underwent immediate bilateral SMDP breast reconstructions. Mean time of follow-up was 20 months. SMDP was indicated to reconstruct inferior breast defects in patients with enough remaining breast tissue. Reconstructed (RB) and opposite (OB) breast complications were evaluated and information on esthetic result and patient satisfaction was collected. Results:Tumors (51.2%) measured 2 cm or less (T1) and 66.6% were located in the lower outer quadrants. Mean change in nipple position was 12.5 cm. Immediate RB complications occurred in 8 patients (20.5%), with skin necrosis in 3 (7.6%), infection in 2 (5.1%), dehiscence in 2 (5.1%), and partial areola necrosis in 1 (2.5%) patient. Late complications were observed in 7.6%. All late complications were observed after adjuvant radiotherapy. The cosmetic result was considered to be good or very good in 84.6%, and the majority of patients were either very satisfied or satisfied. All complications were treated by conservative approach. Conclusion:SMDP is a reliable technique and should be given primary consideration in cases of lower quadrant reconstruction. The success of the procedure depends on patient selection, coordinated planning, and careful intraoperative management.


Plastic and Reconstructive Surgery | 2005

Tensor fasciae latae perforator flap: minimizing donor-site morbidity in the treatment of trochanteric pressure sores.

Luis Henrique Ishida; Alexandre Mendonça Munhoz; Eduardo Montag; Hélio R. N. Alves; Fabio Lopes Saito; Hugo Alberto Nakamoto; Marcus Castro Ferreira

Background: To report a new technique with less morbidity for coverage of trochanteric defects, an anatomical and clinical study was performed. Methods: Twenty-four fresh cadavers were dissected. The following parameters were measured: origin, location, number, and length of the perforating vessels. In addition, a clinical study was performed on 21 patients with trochanteric pressure sores. Results: The anatomical study of 24 fresh cadavers revealed the constant presence of perforator pedicles anterior to the greater trochanter, which provides an adequate arc of rotation arc for flap harvest without sacrificing the underlying muscles. The mean length of the pedicles was 9.59 ± 2.16 cm. This flap is nourished by perforator vessels arising from the ascending branch of the lateral circumflex femoral artery, which arises from the deep femoral artery and runs through the intermuscular septum, tensor fasciae latae, and rectus femoralis muscles. In this study, flaps were raised based on perforators located preoperatively using a unidirectional Doppler probe. Good results were obtained with primary closure of the donor site, with only two donor-site dehiscences. Conclusions: This flap is an alternative to myocutaneous flaps, as it preserves local musculature without functional sequelae in patients who walk. It also preserves the local musculature in the event of recurrence, as is usually seen in paralytic patients with pressure sores.


Aesthetic Plastic Surgery | 2005

The Feasibility of Sentinel Lymph Node Detection in Patients with Previous Transaxillary Implant Breast Augmentation: Preliminary Results

Alexandre Mendonça Munhoz; Claudia Aldrighi; Carlos Buschpiegel; Carla Rachel Ono; Eduardo Montag; Klaus Fells; Eduardo Arruda; Gustavo Sturtz; Patrick Kovac; José Roberto Filassi; Rolf Gemperli; Marcus Castro Ferreira

Background: Transaxillary breast augmentation has gained popularity because of the good aesthetic results and scar placement in a less visible position. As breast-augmented patients age, an increasing number of breast cancer cases can be expected. Sentinel lymph node detection (SLND) is a well-established technique in breast cancer. To date, no information is available regarding the feasibility of SLND for patients with previous transaxillary implants.Methods:A 28-year-old women with bilateral breast hypoplasia underwent a bilateral breast augmentation by the transaxillary approach. One week earlier, SLND was accomplished through two periareolar injections of 0.1 mCi 99m-technetium-labeled fitate and lymphoscintigraphy. A 3.5-cm-long axillary incision was performed, and the dissection continued through the subfascial plane to create the implant’s pocket. A silicone gel implant (215 g round, low-profile, textured Silimed) was inserted.Results: A satisfactory aesthetic result was obtained. Two postoperative lymphoscintigraphies were performed (15 days and 7 months after surgery) with satisfactory SLND. No complication was noted.Conclusion: The initial data show that SLND in the setting of prior breast implant augmentation through the transaxillary approach is feasible. Additional prospective studies and larger clinical series are necessary to analyze the accuracy of SLND for patients with previous breast implants.

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Rolf Gemperli

University of São Paulo

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Eduardo Arruda

University of São Paulo

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Alberto Okada

University of São Paulo

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Gustavo Sturtz

University of São Paulo

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