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1.
Aesthet Surg J ; 41(6): NP616-NP630, 2021 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-32875312

RESUMO

BACKGROUND: Autologous fat grafting (AFG) has been employed in surgical practice as a filling method. However, controversies remain on the specifics of this technique. So far, few relevant experimental large animal studies have objectively assessed factors related to AFG integration. OBJECTIVES: This study utilized an experimental, medium-sized animal model to compare the feasibility of AFG collected employing 2 different techniques with instruments of distinct thicknesses. METHODS: Twenty minipigs (Sus scropha domesticus) were subjected to AFG harvesting via en bloc resection utilizing 3- (Group I) and 5-mm-diameter (Group II) round punch blades (PBs) and liposuction (LS) with 3- (Group III) and 5-mm-diameter cannulas (Group IV). Both samples were grafted intramuscularly (biceps femoralis). Hematoxylin and eosin staining was employed to identify intact adipocytes, fat necrosis, fibrosis, inflammation, and oil cysts. Immunohistochemical staining (perilipin-A, tumor necrosis factor alfa, and cluster of differentiation number 31) was utilized to quantify the feasibility of adipocytes, tissue necrosis, and neoangiogenesis, respectively. RESULTS: Hematoxylin and eosin analysis showed that fat necrosis and histiocyte presence were significantly lower in the AFG harvested utilizing a PB than in LS. For perilipin-A, a statistical difference was observed between subgroups I and III (P = 0.001) and I and IV (P = 0.004). Instrument diameter had no effect on graft integration in comparisons between groups II and III (P = 0.059) and II and IV (P = 0.132). CONCLUSIONS: In this experimental study, fat collected utilizing a PB demonstrated higher adipocyte viability than fat collected with LS. The diameter of the collection instruments, whether PB or LS, had no effect on graft integration.


Assuntos
Tecido Adiposo , Lipectomia , Adipócitos , Animais , Suínos , Porco Miniatura , Coleta de Tecidos e Órgãos , Transplante Autólogo
2.
Breast Cancer Res Treat ; 140(3): 545-55, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23897416

RESUMO

Nipple-sparing mastectomy (NSM) is increasingly offered to women for therapeutic and prophylactic indications. Although, clinical series have been described, there are few studies describing risk factors for complications. The objective of this study is to evaluate the incidence of complications in a series of consecutive patients submitted to NSM and differences between clinical risk factors, breast volume, and different incision types. In a cohort-designed study, 158 reconstructed patients (invasive/in situ cancer and high risk for cancer) were stratified into groups based on different types of incision used (hemi-periareolar, double-circle periareolar, and Wise-pattern). They were matched for age, body mass index, associated clinical diseases, smoking, and weight of specimen. Also included were patients treated with adjuvant chemotherapy and postoperative radiotherapy. Mean follow-up was 65.6 months. In 106 (67 %) patients, NSM was performed for breast cancer treatment and in 52 (32.9 %) for cancer prophylaxis. Thirty-nine (24.6 %) patients were submitted to hemi-periareolar technique, 67 (42.4 %) to double-circle periareolar incision, and 52 (33 %) to Wise-pattern incision. The reconstruction was performed with tissue expander and implant-expander. Local recurrence rate was 3.7 % and the incidence of distant metastases was 1.8 %. Obese patients and higher weight of specimen had a higher risk for complications. After adjusting risk factors (BMI, weight of specimen), the complications were higher for patients submitted to hemi-periareolar and Wise-pattern incisions. This follow-up survey demonstrates that NSM facilitates optimal breast reconstruction by preserving the majority of the breast skin. Selected patients can have safe outcomes and therefore this may be a feasible option for breast cancer management. Success depends on coordinated planning with the oncologic surgeon and careful preoperative and intraoperative management. Surgical risk factors include incision type, obesity, and weight of breast specimen.


Assuntos
Implante Mamário/métodos , Neoplasias da Mama/cirurgia , Mamoplastia/métodos , Mamilos/cirurgia , Adulto , Idoso , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/radioterapia , Quimioterapia Adjuvante , Estudos de Coortes , Feminino , Humanos , Mastectomia Segmentar , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Reoperação , Fatores de Risco , Dispositivos para Expansão de Tecidos , Resultado do Tratamento
4.
Rev Col Bras Cir ; 46(2): e2156, 2019 May 27.
Artigo em Português, Inglês | MEDLINE | ID: mdl-31141033

RESUMO

OBJECTIVE: to evaluate the initial therapeutic experience of transplantation of vascularized lymph nodes in patients with lymphedema of the upper limbs secondary to the treatment of breast cancer, and to verify if the positioning of the transplant influences the surgical result. METHODS: we conducted a prospective, comparative test of two therapeutic modalities, with 24 patients with lymphedema of the upper limb after breast cancer treatment, classified as grades 2 and 3, according to the International Lymphedema Society. The two types of procedures performed were: 1) total breast reconstruction with - deep inferior epigastric perforator (DIEP) flap associated with lymph node flap, in patients with no previous breast reconstruction or loss of previous reconstruction (axillary positioning); 2) isolated inguinal lymph node flap performed in patients with completed breast reconstruction or without the desire to perform the breast reconstruction (wrist positioning). RESULTS: the reduction percentage of the affected limb volume was 20.1% (p=0.0370). The number of infectious episodes (cellulites) also decreased significantly, from 41% in the preoperative period to 12.5% in the postoperative one (p=0.004). There were no differences between the proximal and distal groups. CONCLUSION: the transplantation of lymph nodes positively affected the postoperative evolution of patients with lymphedema secondary to breast cancer. We observed no differences in relation to flap positioning.


OBJETIVO: analisar a experiência terapêutica inicial do transplante de linfonodos vascularizados em pacientes portadoras de linfedema de membros superiores secundário ao tratamento do câncer de mama e verificar se o posicionamento do transplante influencia o resultado cirúrgico. MÉTODOS: ensaio prospectivo, comparativo, de duas modalidades terapêuticas em 24 pacientes portadoras de linfedema de membro superior após tratamento de câncer mamário, classificados como graus 2 e 3, segundo a Sociedade Internacional de Linfedema. Os dois tipos de procedimentos realizados foram: 1) reconstrução total da mama com retalho de perfurante da artéria epigástrica inferior (DIEP- deep inferior epigastric perforator flap) associado ao retalho linfonodal, em pacientes sem reconstrução mamária prévia ou com histórico de perda da reconstrução (posicionamento axilar); 2) retalho linfonodal inguinal isolado foi realizado em pacientes com reconstrução mamária finalizada ou sem o desejo de realizar a reconstrução da mama (posicionamento no punho). RESULTADOS: a porcentagem de redução do volume do membro afetado foi de 20,1% (p=0,0370). O número de episódios infecciosos (celulites) também sofreu redução significativa, de 41% no período pré-operatório para 12,5% no pós-operatório (p=0,004). Não foram observadas diferenças entre os grupos proximal e distal. CONCLUSÃO: o transplante de linfonodos afetou positivamente a evolução pós-operatória de pacientes portadoras de linfedema secundário ao câncer de mama. Não foram observadas diferenças em relação ao posicionamento do retalho.


Assuntos
Linfedema Relacionado a Câncer de Mama/cirurgia , Linfonodos/transplante , Retalho Perfurante/transplante , Adulto , Idoso , Axila/cirurgia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Mamoplastia/métodos , Mastectomia/efeitos adversos , Pessoa de Meia-Idade , Tamanho do Órgão , Estudos Prospectivos , Reprodutibilidade dos Testes , Estatísticas não Paramétricas , Fatores de Tempo , Resultado do Tratamento
5.
Rev Col Bras Cir ; 45(2): e1616, 2018 Mar 29.
Artigo em Inglês, Português | MEDLINE | ID: mdl-29617492

RESUMO

OBJECTIVE: to evaluate the role of age in the risk of postoperative complications in patients submitted to unilateral breast reconstruction after mastectomy, with emphasis on total reconstruction loss. METHODS: we conducted a retrospective study of patients submitted to breast reconstruction, whose variables included: oncological and reconstruction data, postoperative complications, including loss of reconstruction and complications of surgical wound. We divided the patients into two groups, according to the classification of the Brazilian National Elderly Policy and the Statute of the Elderly: young (age <60 years) and elderly (60 years or more). We also grouped them according to the World Health Organization classification: young people (age <44 years), middle age (45-59 years); elderly (age 60-89 years) and extreme advanced age (90 years or older). We applied the surgical risk classification of the American Society of Anesthesiologists to investigate the role of the preoperative physical state as a possible predictor of complications. RESULTS: of the 560 patients operated on, 94 (16.8%) were 60 years of age or older. We observed a local complication rate of 49.8%, the majority being self-limited. The incidences of necrosis, infection and dehiscence were 15.5%, 10.9% and 9.3%, respectively. Patients older than 60 years presented a chance of complication 1.606 times greater than the younger ones. Forty-five (8%) patients had loss of the reconstruction; there was no statistically significant difference in the mean age of the patients who presented this result or not (p=0.321). CONCLUSION: in selected patients, breast reconstruction can be considered safe; most documented complications were limited and could be treated conservatively.


Assuntos
Mamoplastia , Mastectomia , Complicações Pós-Operatórias/epidemiologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Falha de Tratamento , Resultado do Tratamento
6.
Acta Cir Bras ; 32(11): 891-902, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29236794

RESUMO

PURPOSE: To evaluate the feasibility of an experimental model of autologous fat graft (AFG) in different interstitial pressure (IP) environments. METHODS: Three mini-pigs(Minipig-BR) with age of 8 months (weight: 25-30 kg) were used. AFG were collected from the bucal fat pad, and grafted in the intramuscular pocket (biceps femoralis muscle). IP model was based on a fusiform ressection followed by primary closure "under tension". A blood pressure catheter located in the intramuscular region connected to a pressure module was applied to quantify IP. RESULTS: The mean operative time was 236 min (210 - 272 min). All the AFG and muscular segments were removed successfully. Average interstitial pressure CP and H were 3 and 10.6 mmHg respectively. The AFG were biopsied for histopathological analysis 30 days after graft. Hematoxylin-eosin staining and immunohistochemical analyzes (TNF-alpha, CD31 and Perilipine with monoclonal antibodies) were employed. CONCLUSION: The data show that minipigs model could be used as a recipient site for autologous fat graft techniques and allow the development of studies to explore the AFG intake and pathophysiology response.


Assuntos
Tecido Adiposo/transplante , Modelos Animais de Doenças , Procedimentos de Cirurgia Plástica/métodos , Transplante Autólogo/métodos , Animais , Estudos de Viabilidade , Sobrevivência de Enxerto , Imuno-Histoquímica , Masculino , Perilipinas/análise , Molécula-1 de Adesão Celular Endotelial a Plaquetas/análise , Pressão , Procedimentos de Cirurgia Plástica/normas , Suínos , Porco Miniatura , Transplante Autólogo/normas , Fator de Necrose Tumoral alfa
7.
J Plast Reconstr Aesthet Surg ; 69(8): 1087-91, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26947672

RESUMO

BACKGROUND: Unsuccessful breast reconstruction management represents a complex challenge for the plastic surgeon. Although these events rarely occur, many patients are not suitable candidates for conventional flaps, because of either previous donor-site surgery or lack of sufficient tissue. METHODS: In this study, a contralateral free latissimus dorsi musculocutaneous flap (CL-LDMF) was planned for correction of major lesions in the anterior chest wall. Twelve patients underwent secondary/tertiary breast reconstruction with CL-LDMF with a customized shape (horizontal, oblique, or "fleur-de-lis") depending on the amount of tissue necessary. The technique was indicated in patients with large thoracic defects who lacked a donor site and had undergone previous unsuccessful pedicled LDMF. RESULTS: The mean follow-up time was 42.5 months (range: 18-72 months). Five local complications occurred in four of the 12 patients. Dorsal dehiscence was observed in one, local wound infection in one, small partial CL-LDMF necrosis in one, and dorsal seroma in one patient. All cases of complications were limited and treated with a conservative approach except for one implant extrusion 4 months after reconstruction. No total flap loss was reported. All patients achieved a satisfactory thoracic and breast reconstruction. CONCLUSION: The results of this study demonstrate that free CL-LDMF is a reliable technique and should be considered in selected cases of tertiary reconstructions. The majority of complications were immediate, minor, and comparable to other reconstructive techniques. We believe that in selected patients, especially those who do not have available donor-site areas, free CL-LDMF is advantageous and should be part of the armamentarium of all plastic surgeons who deal with tertiary breast reconstructions.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia/métodos , Retalho Miocutâneo , Complicações Pós-Operatórias/cirurgia , Adulto , Idoso , Neoplasias da Mama/patologia , Neoplasias da Mama/radioterapia , Feminino , Humanos , Mamoplastia/efeitos adversos , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Músculos Superficiais do Dorso , Falha de Tratamento , Adulto Jovem
8.
Int J Surg Case Rep ; 5(6): 319-23, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24794025

RESUMO

INTRODUCTION: Lumbar triangle hernia after breast reconstruction with latissimus dorsi flap (LDMF) is a very rare complication and few cases were previously described. Muscle mobilization and iatrogenic fascia defect are related etiologic factors. PRESENTATION OF CASE: The authors describe a rare case of lumbar hernia in a 58-year-old woman who underwent delayed left breast reconstruction with LDMF. Two months after surgery, a progressive symptomatic lower left lumbar bulge was observed. The CT scan confirmed the diagnosis and delineated an 18cm lumbar defect filled with lower and large bowel. At operation, the defect was exposed and the hernia sac reduced. In order to obtain stability, the remained local muscle and fascia flaps were mobilized into the defect. Additional strength was achieved with a two-layer closure of prosthetic mesh (intra/extra peritoneal). The patient is currently in the 10th postoperative year of hernia repair and satisfactory lumbar wall contour was achieved. Neither the recurrence of lumbar hernia nor symptoms compliance was noted. DISCUSSION: Lumbar hernia is an uncommon complication of LDMF harvest. Although it is a rare disease, general and plastic surgeons must be on alert to avoid complications and misdiagnosis. Seroma differential diagnosis is important in order to avoid bowel perforation due to aspiration. Defect reconstruction is necessary with a muscular and fascia flaps mobilization and synthetic mesh in order to obtain a stable repair. CONCLUSION: The knowledge of this rare post-operative complication following delayed breast reconstruction is crucial to its surgical management. Early surgical intervention is warranted in order to avoid severe complications.

9.
J Plast Reconstr Aesthet Surg ; 67(1): 115-8, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23827451

RESUMO

BACKGROUND: Breast sarcoma during pregnancy is an extremely rare event and represents a complex problem because of a more advanced stage at presentation. METHOD: This report presents the first case of a 24-year-old woman with a gestational age of 20 weeks with a fast growing tumour in her left breast (29 × 19 × 15 cm) and infiltrating the skin/pectoralis muscles. Radical mastectomy was performed with a gestational age of 22 weeks and a different design was planned for the latissimus dorsi musculocutaneous flap (LDMF) with primary closure in the V-Y pattern. RESULT: Satisfactory chest wall coverage and contour were achieved. Final histopathological findings allowed a diagnosis of undifferentiated sarcoma. With a gestational age of 37 weeks, a healthy infant was delivered by means of a caesarean section. The patient is currently in the second postoperative year and no recurrence has been observed. CONCLUSION: Management of a large breast sarcoma in a pregnant patient presents unique challenges in consideration of the potential risks to the foetus and the possible maternal benefit. The results of this study demonstrate that the VY-LDMF is a reliable technique and should be considered in cases of immediate large thoracic wound reconstruction.


Assuntos
Neoplasias da Mama/cirurgia , Procedimentos de Cirurgia Plástica , Complicações Neoplásicas na Gravidez/cirurgia , Sarcoma/cirurgia , Parede Torácica/cirurgia , Adulto , Cesárea , Feminino , Humanos , Mastectomia Radical , Gravidez , Retalhos Cirúrgicos , Nascimento a Termo , Adulto Jovem
10.
Rev. Col. Bras. Cir ; 46(2): e2156, 2019. tab, graf
Artigo em Português | LILACS | ID: biblio-1003086

RESUMO

RESUMO Objetivo: analisar a experiência terapêutica inicial do transplante de linfonodos vascularizados em pacientes portadoras de linfedema de membros superiores secundário ao tratamento do câncer de mama e verificar se o posicionamento do transplante influencia o resultado cirúrgico. Métodos: ensaio prospectivo, comparativo, de duas modalidades terapêuticas em 24 pacientes portadoras de linfedema de membro superior após tratamento de câncer mamário, classificados como graus 2 e 3, segundo a Sociedade Internacional de Linfedema. Os dois tipos de procedimentos realizados foram: 1) reconstrução total da mama com retalho de perfurante da artéria epigástrica inferior (DIEP- deep inferior epigastric perforator flap) associado ao retalho linfonodal, em pacientes sem reconstrução mamária prévia ou com histórico de perda da reconstrução (posicionamento axilar); 2) retalho linfonodal inguinal isolado foi realizado em pacientes com reconstrução mamária finalizada ou sem o desejo de realizar a reconstrução da mama (posicionamento no punho). Resultados: a porcentagem de redução do volume do membro afetado foi de 20,1% (p=0,0370). O número de episódios infecciosos (celulites) também sofreu redução significativa, de 41% no período pré-operatório para 12,5% no pós-operatório (p=0,004). Não foram observadas diferenças entre os grupos proximal e distal. Conclusão: o transplante de linfonodos afetou positivamente a evolução pós-operatória de pacientes portadoras de linfedema secundário ao câncer de mama. Não foram observadas diferenças em relação ao posicionamento do retalho.


ABSTRACT Objective: to evaluate the initial therapeutic experience of transplantation of vascularized lymph nodes in patients with lymphedema of the upper limbs secondary to the treatment of breast cancer, and to verify if the positioning of the transplant influences the surgical result. Methods: we conducted a prospective, comparative test of two therapeutic modalities, with 24 patients with lymphedema of the upper limb after breast cancer treatment, classified as grades 2 and 3, according to the International Lymphedema Society. The two types of procedures performed were: 1) total breast reconstruction with - deep inferior epigastric perforator (DIEP) flap associated with lymph node flap, in patients with no previous breast reconstruction or loss of previous reconstruction (axillary positioning); 2) isolated inguinal lymph node flap performed in patients with completed breast reconstruction or without the desire to perform the breast reconstruction (wrist positioning). Results: the reduction percentage of the affected limb volume was 20.1% (p=0.0370). The number of infectious episodes (cellulites) also decreased significantly, from 41% in the preoperative period to 12.5% in the postoperative one (p=0.004). There were no differences between the proximal and distal groups. Conclusion: the transplantation of lymph nodes positively affected the postoperative evolution of patients with lymphedema secondary to breast cancer. We observed no differences in relation to flap positioning.


Assuntos
Humanos , Feminino , Adulto , Idoso , Retalho Perfurante/transplante , Linfedema Relacionado a Câncer de Mama/cirurgia , Linfonodos/transplante , Tamanho do Órgão , Axila/cirurgia , Fatores de Tempo , Neoplasias da Mama/cirurgia , Estudos Prospectivos , Reprodutibilidade dos Testes , Resultado do Tratamento , Mamoplastia/métodos , Estatísticas não Paramétricas , Mastectomia/efeitos adversos , Pessoa de Meia-Idade
11.
Rev. Col. Bras. Cir ; 45(2): e1616, 2018. tab
Artigo em Inglês | LILACS | ID: biblio-896647

RESUMO

ABSTRACT Objective: to evaluate the role of age in the risk of postoperative complications in patients submitted to unilateral breast reconstruction after mastectomy, with emphasis on total reconstruction loss. Methods: we conducted a retrospective study of patients submitted to breast reconstruction, whose variables included: oncological and reconstruction data, postoperative complications, including loss of reconstruction and complications of surgical wound. We divided the patients into two groups, according to the classification of the Brazilian National Elderly Policy and the Statute of the Elderly: young (age <60 years) and elderly (60 years or more). We also grouped them according to the World Health Organization classification: young people (age <44 years), middle age (45-59 years); elderly (age 60-89 years) and extreme advanced age (90 years or older). We applied the surgical risk classification of the American Society of Anesthesiologists to investigate the role of the preoperative physical state as a possible predictor of complications. Results: of the 560 patients operated on, 94 (16.8%) were 60 years of age or older. We observed a local complication rate of 49.8%, the majority being self-limited. The incidences of necrosis, infection and dehiscence were 15.5%, 10.9% and 9.3%, respectively. Patients older than 60 years presented a chance of complication 1.606 times greater than the younger ones. Forty-five (8%) patients had loss of the reconstruction; there was no statistically significant difference in the mean age of the patients who presented this result or not (p=0.321). Conclusion: in selected patients, breast reconstruction can be considered safe; most documented complications were limited and could be treated conservatively.


RESUMO Objetivo: avaliar o papel da idade no risco de complicações pós-operatórias de pacientes submetidas à reconstrução mamária unilateral pós-mastectomia, com ênfase na perda total da reconstrução. Métodos: estudo retrospectivo de pacientes submetidas à reconstrução mamária, cujas variáveis incluídas foram: dados oncológicos e da técnica de reconstrução, complicações pós-operatórias, incluindo perda da reconstrução e complicações da ferida operatória. As pacientes foram divididas de acordo com a classificação da Política Nacional do Idoso e Estatuto do Idoso em dois grupos: jovens (idade <60 anos) e idosas (60 anos ou mais). Também foram agrupadas de acordo com a classificação da Organização Mundial da Saúde: jovens (idade <44 anos); meia-idade (idade 45-59 anos); idosas (idade 60-89 anos) e velhice extrema (90 anos ou mais). A classificação do risco cirúrgico da Sociedade Americana de Anestesiologistas foi aplicada para investigar o papel do estado físico pré-operatório como possível preditor de complicações. Resultados: das 560 pacientes operadas, 94 (16,8%) apresentavam 60 anos ou mais. Observou-se taxa de complicações locais de 49,8%, a maioria, limitadas. As incidências de necrose, infecção e deiscência foram de 15,5%, 10,9% e 9,3%, respectivamente. Pacientes com 60 anos ou mais apresentaram chance de complicação 1,606 vezes maior do que as jovens. Quarenta e cinco (8%) pacientes apresentaram perda da reconstrução e não houve diferença estatisticamente significante na média de idade das pacientes que apresentaram ou não esse desfecho (p=0,321). Conclusão: em pacientes selecionadas, a reconstrução mamária pode ser considerada segura; a maioria das complicações documentadas foi limitada e pode ser tratada conservadoramente.


Assuntos
Humanos , Feminino , Adulto , Idoso , Idoso de 80 Anos ou mais , Complicações Pós-Operatórias/epidemiologia , Mamoplastia , Mastectomia , Estudos Retrospectivos , Estudos de Coortes , Fatores Etários , Resultado do Tratamento , Falha de Tratamento , Medição de Risco , Pessoa de Meia-Idade
12.
Acta cir. bras ; 32(11): 891-902, Nov. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-886185

RESUMO

Abstract Purpose: To evaluate the feasibility of an experimental model of autologous fat graft (AFG) in different interstitial pressure (IP) environments. Methods: Three mini-pigs(Minipig-BR) with age of 8 months (weight: 25-30 kg) were used. AFG were collected from the bucal fat pad, and grafted in the intramuscular pocket (biceps femoralis muscle). IP model was based on a fusiform ressection followed by primary closure "under tension". A blood pressure catheter located in the intramuscular region connected to a pressure module was applied to quantify IP. Results: The mean operative time was 236 min (210 - 272 min). All the AFG and muscular segments were removed successfully. Average interstitial pressure CP and H were 3 and 10.6 mmHg respectively. The AFG were biopsied for histopathological analysis 30 days after graft. Hematoxylin-eosin staining and immunohistochemical analyzes (TNF-alpha, CD31 and Perilipine with monoclonal antibodies) were employed. Conclusion: The data show that minipigs model could be used as a recipient site for autologous fat graft techniques and allow the development of studies to explore the AFG intake and pathophysiology response.


Assuntos
Animais , Masculino , Transplante Autólogo/métodos , Tecido Adiposo/transplante , Procedimentos de Cirurgia Plástica/métodos , Modelos Animais de Doenças , Pressão , Suínos , Porco Miniatura , Transplante Autólogo/normas , Imuno-Histoquímica , Estudos de Viabilidade , Fator de Necrose Tumoral alfa , Molécula-1 de Adesão Celular Endotelial a Plaquetas/análise , Procedimentos de Cirurgia Plástica/normas , Perilipinas/análise , Sobrevivência de Enxerto
13.
Rev. bras. cir. plást ; 29(3): 361-367, jul.-sep. 2014. tab
Artigo em Inglês, Português | LILACS | ID: biblio-722

RESUMO

INTRODUÇÃO: A utilização de implante mamário é a forma de reconstrução de mama mais comumente realizada. Apesar de suas vantagens, a infecção do implante, seja este expansor tecidual ou prótese mamária, pode ser um problema significativo, incluindo a necessidade de sua retirada. O objetivo deste trabalho é avaliar o índice de infecção de implantes mamários utilizados na reconstrução de mama de pacientes operadas no Instituto do Câncer do Estado de São Paulo (ICESP), bem como sua correlação com aspectos clínicos, oncológicos e cirúrgicos. PACIENTES E MÉTODOS: Estudo retrospectivo de 120 pacientes submetidas à reconstrução mamária com implante mamário no ICESP, no período de fevereiro de 2009 a março de 2010. RESULTADOS: O índice de infecção foi de 24,3% e esteve relacionado estatisticamente a reconstrução imediata (88,9%), diabetes mellitus (25%), IMC acima de 30 (52,8%), HAS (52,8%) e sofrimento de pele da mastectomia (27,8%). Nota-se que 44% dos implantes infectados foram retirados, sendo a maioria expansores colocados em reconstrução imediata. CONCLUSÕES: A reconstrução mamária com implante é uma forma segura e eficaz de tratamento. Deve-se, entretanto, estar atento aos subgrupos de pacientes mais propensas ao desenvolvimento de infecção, para otimizar a sua prevenção e atentar ao seu tratamento precoce.


INTRODUCTION: Placement of breast implants is the most commonly used form of breast reconstruction. Despite its advantages, infection of the implant, either in the tissue expander or mammary prosthesis, can be a significant problem, including the need to remove it. The objective of this work is to evaluate the infection rate of breast implants used for breast reconstruction in patients submitted to surgery at the Cancer Institute of the State of São Paulo (ICESP), as well as its correlation with clinical, oncological, and surgical factors. PATIENTS AND METHODS: This is a retrospective study on 120 patients submitted to breast reconstruction with breast implants at the ICESP from February 2009 to March 2010. RESULTS: The infection rate (24.3%) was statistically related to immediate reconstruction (88.9%), diabetes mellitus (25%), body mass index >30 (52.8%), systemic arterial hypertension (52.8%), and skin injury due to mastectomy (27.8%). Of the infected implants, 44% were removed, most of which were expanders placed during immediate reconstruction. CONCLUSIONS: Breast reconstruction with implants is the safest and most effective form of treatment. However, consideration should be given to patients who are prone to the development of infection, in order to optimize its prevention and attempt to perform its treatment at an early stage.


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , História do Século XXI , Mama , Neoplasias da Mama , Dispositivos para Expansão de Tecidos , Estudos Retrospectivos , Infecções Relacionadas à Prótese , Implantes de Mama , Procedimentos de Cirurgia Plástica , Glândulas Mamárias Humanas , Mama/cirurgia , Neoplasias da Mama/cirurgia , Dispositivos para Expansão de Tecidos/normas , Infecções Relacionadas à Prótese/cirurgia , Infecções Relacionadas à Prótese/complicações , Implantes de Mama/normas , Procedimentos de Cirurgia Plástica/métodos , Glândulas Mamárias Humanas/cirurgia
14.
Plast Reconstr Surg ; 119(6): 1637-1649, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17440335

RESUMO

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.


Assuntos
Implantes de Mama , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/cirurgia , Mamoplastia/métodos , Mastectomia Subcutânea/métodos , Músculo Esquelético/transplante , Adulto , Brasil , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Estudos de Coortes , Terapia Combinada , Estética , Feminino , Seguimentos , Humanos , Mamoplastia/efeitos adversos , Mastectomia Subcutânea/efeitos adversos , Pessoa de Meia-Idade , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Satisfação do Paciente , Seleção de Pacientes , Complicações Pós-Operatórias , Qualidade de Vida , Estudos Retrospectivos , Medição de Risco , Retalhos Cirúrgicos , Dispositivos para Expansão de Tecidos , Cicatrização/fisiologia
15.
Plast Reconstr Surg ; 117(4): 1091-103; discussion 1104-7, 2006 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-16582770

RESUMO

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.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia , Mastectomia Segmentar , Adulto , Idoso , Neoplasias da Mama/epidemiologia , Carcinoma Ductal de Mama/cirurgia , Quimioterapia Adjuvante , Comorbidade , Estudos de Viabilidade , Feminino , Humanos , Excisão de Linfonodo , Mamoplastia/métodos , Pessoa de Meia-Idade , Obesidade/epidemiologia , Dosagem Radioterapêutica , Radioterapia Adjuvante , Reoperação , Estudos Retrospectivos , Fatores de Risco , Fumar/epidemiologia
16.
Ann Plast Surg ; 57(5): 502-8, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17060729

RESUMO

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.


Assuntos
Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/cirurgia , Mamoplastia/métodos , Glândulas Mamárias Humanas/cirurgia , Adulto , Neoplasias da Mama/radioterapia , Carcinoma Ductal de Mama/radioterapia , Procedimentos Cirúrgicos Dermatológicos , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Necrose/etiologia , Necrose/patologia , Necrose/cirurgia , Satisfação do Paciente , Complicações Pós-Operatórias , Pele/patologia
17.
Plast Reconstr Surg ; 117(6): 1699-710, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16651939

RESUMO

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.


Assuntos
Mamoplastia/métodos , Retalhos Cirúrgicos , Adulto , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/cirurgia , Quimioterapia Adjuvante , Cicatriz/etiologia , Terapia Combinada , Estética , Necrose Gordurosa/etiologia , Feminino , Fibrose , Humanos , Excisão de Linfonodo , Mamoplastia/efeitos adversos , Mamoplastia/estatística & dados numéricos , Mastectomia , Pessoa de Meia-Idade , Satisfação do Paciente , Complicações Pós-Operatórias/etiologia , Radioterapia Adjuvante , Reoperação , Estudos Retrospectivos , Seroma/etiologia , Retalhos Cirúrgicos/efeitos adversos , Retalhos Cirúrgicos/estatística & dados numéricos , Deiscência da Ferida Operatória/cirurgia , Infecção da Ferida Cirúrgica/etiologia , Resultado do Tratamento
18.
Plast Reconstr Surg ; 116(7): 1881-93, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16327599

RESUMO

BACKGROUND: Although breast reconstruction with the deep inferior epigastric perforator (DIEP) flap is a well-known technique, few publications have reported the aesthetic outcome of the abdomen and the donor-site closure techniques utilized. The aim of this study was to analyze the feasibility of immediate clinical application of traditional abdominoplasty techniques after DIEP flap harvesting. METHODS: Forty-four patients underwent 48 DIEP flap breast reconstructions, with 32 immediate and four bilateral procedures. All patients underwent full abdominoplasties with some technique of musculoaponeurotic system plication. Information on age, weight, height, smoking status, comorbid medical conditions, complications, and revision surgery was collected. RESULTS: In all patients, the anterior rectus fascia was closed by a two-layer imbrication-type closure and the rectus diastasis was corrected by a median plicature. In 36 patients (81.8 percent), a contralateral rectus plicature was performed. In 21 patients (47.7 percent), plication of the external oblique aponeurosis was performed. All patients achieved an improved abdominal contour, and 41 (93.2 percent) were satisfied with their result. Ten patients (22.7 percent) had minor complications. CONCLUSIONS: Clinical application of abdominoplasty techniques is feasible immediately after DIEP harvesting and must address not only skin and subcutaneous tissue but also the muscular abdominal wall. All of the musculofascial plication techniques improved the definition of the waistline. Patient selection is crucial to achieve a satisfactory outcome. The main objective is that patients safely undergo dual procedures with no increased risk and with the added aesthetic benefits at the abdominal donor site.


Assuntos
Parede Abdominal/cirurgia , Mamoplastia , Procedimentos de Cirurgia Plástica/métodos , Retalhos Cirúrgicos , Adulto , Fasciotomia , Estudos de Viabilidade , Feminino , Humanos , Pessoa de Meia-Idade , Técnicas de Sutura , Fatores de Tempo , Coleta de Tecidos e Órgãos , Resultado do Tratamento
19.
Plast Reconstr Surg ; 116(3): 741-52, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16141810

RESUMO

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 association (p = 0.035) was detected between dorsal seroma and obesity (body mass index or = 30 kg/m) 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.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia , Mastectomia Segmentar , Retalhos Cirúrgicos , Adulto , Índice de Massa Corporal , Neoplasias da Mama/terapia , Carcinoma Ductal de Mama/cirurgia , Quimioterapia Adjuvante , Comorbidade , Feminino , Humanos , Modelos Logísticos , Excisão de Linfonodo , Pessoa de Meia-Idade , Radioterapia Adjuvante , Estudos Retrospectivos , Fatores de Risco , Fumar/epidemiologia , Retalhos Cirúrgicos/efeitos adversos
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