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1.
J Craniofac Surg ; 34(8): e790-e793, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37622550

RESUMO

The absence of eyebrows, whether complete or partial, has been observed in specific types of craniofacial clefts, primarily occurring in Tessier clefts numbers 9 to 13. To address this defect, several techniques have been used to improve eyebrow appearance, such as the island scalp flap and scalp strip grafting technique. However, these methods did not yield satisfactory esthetic results. In this study, the authors present findings from 7 patients with craniofacial clefts, in whom the eyebrows were completely reconstructed through the rotation flap technique, using abnormal frontal hairline extension, in 1 or 2 stages. The result was natural-looking and highly satisfactory, with no associated morbidity.


Assuntos
Estética Dentária , Sobrancelhas , Humanos , Retalhos Cirúrgicos , Couro Cabeludo/transplante
2.
Dermatol Ther ; 35(7): e15545, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35486375

RESUMO

The clinical presentation of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2 COVID-19) varies from asymptomatic infection to a life-threatening, multiorgan disease. One of these manifestations is telogen effluvium (TE) which is characterized by diffuse hair loss occurring in patients previously infected with SARS-CoV-2 and lasts ~3 months, after which excessive hair loss follows. Hair follicles are known to contain a well-characterized niche for adult stem cells which is the bulge containing epithelial and melanocytic stem cells. Stem cells in the hair bulge, a demarcated structure within the lower permanent portion of hair follicles, can generate the interfollicular epidermis, hair follicle structures, and sebaceous glands. This study aims to evaluate autologous micrografts from scalp tissues as a therapeutic modality in the management of TE caused by COVID-19. Twenty patients of previous COVID-19 infection suffered from TE were included in this study for human follicle stem cells micrograft scalp treatment and they were evaluated after 3 months of treatment and after 6 months. There was significant improvement of the hair thickness and density compared with the start of the treatment and 6 months of follow-up. Autologous micrograft of the scalp showed marked improvement in the treatment of COVID-19 TE.


Assuntos
Alopecia em Áreas , Autoenxertos , COVID-19 , Folículo Piloso , Microcirurgia , Couro Cabeludo , Adulto , Alopecia em Áreas/etiologia , Alopecia em Áreas/cirurgia , Alopecia em Áreas/virologia , COVID-19/complicações , COVID-19/virologia , Seguimentos , Folículo Piloso/transplante , Humanos , SARS-CoV-2 , Couro Cabeludo/transplante , Transplante de Células-Tronco , Fatores de Tempo
4.
J Cell Physiol ; 235(5): 4587-4593, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31643084

RESUMO

Regenerative medicine is a multidisciplinary field that combines engineering and life science principles to promote regeneration, potentially restoring the physiological condition in diseased tissues. Specifically, the developments of complex grafts enhance the intrinsic regenerative capacity of the host by altering its environment. Autologous micrografts obtained through Rigenera® micrografting technology are able to promote derma and bone regeneration. Androgenetic alopecia (AGA) leads to a progressive thinning of scalp hair affecting 60-70% of the adult population worldwide. Pharmacological treatment offers moderate results and hair transplantation represents the only permanent treatment option. The aim of this study was to demonstrate the role of dermis micrografting in the treatment of AGA by clinical and histological evaluations after 4, 6, and 12 months. Hair growth and density were improved at all indicated times. Those outcomes were also confirmed by the TrichoScan® analysis, reporting an increase of total hair count and density with an increase and reduction of anagen and telogen phases, respectively. Scalp dermoscopic analysis showed an improvement of hair density and histological analysis indicated a clear amelioration of the scalp, development of hair follicles, and a beginning of cuticle formation. Collectively, those results suggest a possible use of the micrografts as a novel therapeutic option in the management of AGA.


Assuntos
Alopecia/cirurgia , Folículo Piloso/transplante , Regeneração , Couro Cabeludo/transplante , Transplante de Células-Tronco , Alopecia/fisiopatologia , Feminino , Humanos , Masculino , Fatores de Tempo , Transplante Autólogo , Resultado do Tratamento
5.
Cutis ; 103(6): 369-370, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31348452

RESUMO

Common challenges associated with split-thickness skin graft (STSG) donor site wounds include slow healing times and poor scar cosmesis. The technique described here improves these shortcomings by utilizing a Weck knife with adjustable thickness controls to harvest STSGs from the scalp.


Assuntos
Couro Cabeludo/transplante , Transplante de Pele/métodos , Cicatrização/fisiologia , Cicatriz/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Sítio Doador de Transplante
6.
J Craniofac Surg ; 30(3): 891-896, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30865126

RESUMO

BACKGROUND AND OBJECTIVES: Large scars formed after burns injury can seriously hamper appearance and function in children. Surgical resection of scars and secondary skin or flap grafting often brings severe damages to donor sites, which may lead to physiological and psychological development disorders in children. Here, we introduce the use of artificial dermis and skin grafts from scalps to treat large scars in children to minimize the donor site morbidity. METHODS: A retrospective char review was performed including 7 children with large scars between January 2016 and December 2017. First, the scars were resected, and artificial dermis was applied to the secondary wounds. Twelve days later, outer silicone membrane was removed. Another 2 days later, scalp skin grafts of 0.3 mm were transplanted to the wounds. Manchester Scar Scale and Visual Analog Scale were used to evaluate scar appearance before and after the treatment respectively. One special patient with extensive scars was treated twice at an interval of 1 year. The first therapy was performed with both conventional method of resection and skin grafting and the new method described above. In the second therapy, 4 samples were taken from 4 different sites-the normal skin, scars, the skin where artificial dermis and scalp skin grafting were performed, and the skin where only scalp skin grafting was performed. H-E staining, Masson staining, Aldehyde fuchsin staining, and scanning electron microscopy were used for histological observation. RESULTS: All skin grafts survived well. The Manchester Scar Scale score of the graft area was significantly reduced (P < 0.01) after the treatment. Histological examination showed obviously better dermis arrangement where artificial dermis and scalp grafting was performed. CONCLUSION: The therapy achieves better appearances and minimizes donor site morbidity. It is beneficial to physical and psychological development of children and provides an alternative to treat children with large scars.


Assuntos
Cicatriz/cirurgia , Couro Cabeludo/transplante , Transplante de Pele/métodos , Pele Artificial , Queimaduras/complicações , Criança , Pré-Escolar , Cicatriz/etiologia , Cicatriz/patologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Sítio Doador de Transplante/patologia , Transplantes/patologia
7.
Burns ; 45(3): 543-553, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30337156

RESUMO

BACKGROUND: The scalp is the only hidden donor site for split thickness skin grafts. Nevertheless, it is underappreciated due to fear of iatrogenic scarring alopecia. Long-term data showing whether androgenetic hair loss can reveal previously hidden scarring alopecia is unavailable. We aimed to evaluate results and patient satisfaction up to 30years after skin harvest from the scalp. METHODS: Burn patients, hospitalized between 1977 and 1987 at the University Children's Hospital Zurich with scalp skin harvest and currently over 30years old, were studied. Medical records and patient satisfaction were analyzed, and a clinical scalp examination was performed. RESULTS: Thirty-two patients (18 males, 14 females) with a current age of 34.13±3.42years participated. Mean follow-up time was 27.09±3.04years. Fifty-four scalp harvests were performed with 1.69±0.96 sequential harvests. Hair growth was considered normal in 97% patients. Androgenetic alopecia (AGA) type Norwood II-VI was seen in 11 patients. Scalp examination revealed 11 unknown likely harvest-related alopecias with a mean size of 0.7cm2. CONCLUSIONS: Long-term morbidity of scalp skin harvest and the risk of clinically significant alopecia is very low while patient satisfaction is high. AGA is unlikely to reveal harvest damage previously hidden by regrown hair.


Assuntos
Alopecia/epidemiologia , Queimaduras/cirurgia , Cicatriz Hipertrófica/epidemiologia , Queloide/epidemiologia , Satisfação do Paciente , Couro Cabeludo/transplante , Transplante de Pele/métodos , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Doença Iatrogênica/epidemiologia , Lactente , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados da Assistência ao Paciente , Estudos Retrospectivos , Suíça/epidemiologia , Coleta de Tecidos e Órgãos/métodos
8.
J Craniofac Surg ; 30(2): e117-e119, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30507888

RESUMO

The paramedian forehead flap is a workhorse flap for reconstructing the nose and periorbital regions. Many variants are described including an islanded flap. However, eyebrow reconstruction is not usually performed with these flaps. The authors describe a patient suffering from postburn scarring medial to the left eye, including loss of the left eyebrow. He underwent a single-stage transfer of the paramedian forehead flap. The flap incorporated scalp hair, which restored the missing eyebrow hair after transfer. The donor defect closed primarily. The paramedian forehead flap is amenable to customization by including a segment of hair-bearing scalp to concomitantly reconstruct the nasal dorsum and eyebrow.


Assuntos
Cicatriz , Sobrancelhas/patologia , Face/cirurgia , Cabelo/transplante , Procedimentos de Cirurgia Plástica/métodos , Rinoplastia/métodos , Couro Cabeludo/transplante , Retalhos Cirúrgicos , Adulto , Queimaduras/complicações , Cicatriz/diagnóstico , Cicatriz/etiologia , Cicatriz/cirurgia , Traumatismos Faciais/etiologia , Traumatismos Faciais/cirurgia , Testa/cirurgia , Humanos , Masculino , Nariz/cirurgia
9.
Pak J Pharm Sci ; 30(3(Special)): 1173-1177, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28671102

RESUMO

Pentoxifylline is widely used in the treatment of cerebrovascular disease, at present, there are a variety of drugs in the clinical expansion of the role of the skin flap, by improving or promoting blood circulation, to ensure the survival of the flap. We designed scalping forehead flap to reconstruct large temporal cutaneous defects. This flap is reliable and can give us excellent postoperative result. This design has several advantages and is worth to be promoted. The scalping forehead flap we designed is reliable. The posterior auricular artery and it branches provided enough blood supply to the scalp and forehead tissue of the flap. The frontal muscle also make the flap have a high survival rate. Large temporal cutaneous defects can be reconstructed by this novel scalping forehead flap we described. This technique is useful especially for patients who suffered malignant tumor and can not choose free flap.


Assuntos
Testa/cirurgia , Sobrevivência de Enxerto/efeitos dos fármacos , Pentoxifilina/uso terapêutico , Procedimentos de Cirurgia Plástica/métodos , Couro Cabeludo/transplante , Transplante de Pele/métodos , Retalhos Cirúrgicos/irrigação sanguínea , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inibidores de Fosfodiesterase/uso terapêutico , Adulto Jovem
12.
J Craniofac Surg ; 27(8): e719-e723, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28005795

RESUMO

INTRODUCTION: Fibrous dysplasia (FD) is a non-neoplastic developmental fibro-osseous disease. It represents 2.5% of all bone tumors and 5% to 7% of the benign bone tumors. Orbitocranial region is involved in about 20% of the patients. The main presentations are craniofacial deformity and headache. Loss of vision is the most devastating result of this disease. There is no medical treatment to cure or prevent FD. Radiation therapy is contraindicated. Surgery for the orbitocranial FD is often challenging because of the proximity of neurovascular and ocular structures. Conservative surgical shaving and recontouring is always associated with suboptimal results. Radical excision is potentially curative with no extra morbidity. Orbital hypertelorism, dystopia, or proptosis can be corrected only by radical excision and reconstruction. AIM: The aim of the study was to evaluate the outcome of radical excision of the orbitocranial FD and immediate reconstruction using titanium mesh and pericranial flap. PATIENTS AND METHODS: This prospective study had been conducted on 22 patients with orbitocranial FD with age range from 17 to 52 years (mean 29.5). Radical excision of the lesions was done for all patients through transcranial approach. Immediate reconstruction was achieved using titanium mesh and pericranial flap. RESULTS: Intraoperative dural tears and cerebrospinal fluid leak were reported in 2 patients and repaired with galeal graft. Supraorbital anesthesia occurred in 6 patients. Of these, 2 patients were transient, while the remaining 4 patients were permanent. Wound infection was noticed in 1 patient who improved by medical treatment. Temporary postoperative diplopia occurred in 1 patient and temporary postoperative impaired vision in 1 other patient. In all patients, acceptable or good aesthetic results were observed. No recurrence was detected in our series during the follow-up period that ranged from 24 to 58 months (mean 37.5 months). CONCLUSION: Radical excision of orbitocranial FD is potentially curative with no extra morbidity. It can achieve good aesthetic and functional results with no recurrence.


Assuntos
Displasia Fibrosa Poliostótica/cirurgia , Órbita/anormalidades , Procedimentos de Cirurgia Plástica/métodos , Crânio/anormalidades , Retalhos Cirúrgicos , Telas Cirúrgicas , Titânio , Adolescente , Adulto , Feminino , Displasia Fibrosa Poliostótica/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Órbita/diagnóstico por imagem , Órbita/cirurgia , Estudos Prospectivos , Próteses e Implantes , Desenho de Prótese , Couro Cabeludo/transplante , Crânio/diagnóstico por imagem , Crânio/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Adulto Jovem
13.
Rev. guatemalteca cir ; 22(1): 15-19, ener-dic, 2016. ilus.
Artigo em Espanhol | LILACS | ID: biblio-1016944

RESUMO

Objetivo: Demostrar los beneficios del uso de cuero cabelludo como área donadora de injertos cutáneos de espesor parcial. Método: Estudio retrospectivo descriptivo realizado de 2013 a 2015 en la Unidad de quemaduras pediátricas del hospital Roosevelt de 111 pacientes en que se utilizaron injertos del cuero cabelludo. Resultados: La mayoría de los pacientes sufrieron quemaduras por inmersión en líquidos calientes con disponibilidad limitada de zonas donadoras de injertos. El otro uso que se le dio a los injertos de cuero cabelludo fue en quemaduras y lesiones faciales debido a la similitud de la pigmentación de estas áreas. Este estudió demostró el corto tempo de epitelización de esta zona donadora (3.5 días), lo que permitió que se utilizara en varias ocasiones. La principal complicación fue la alopecia (1.8%) resultado de una toma de un injerto muy grueso. Conclusión: El estudio sugiere que el cuero cabelludo es una zona donadora útil cuando las principales áreas donadoras están limitadas. Más investigación tendrá que realizarse para establecer otros beneficios observados del uso de esta región como zona donadora de injertos cutáneos.


Objectve: Demonstrate the benefts of using scalp as a donor area of partal split thickness skin grafs. Methods: Retrospectve descriptve study from 2013 to 2015 shows 111 patents that required a skin graf from the scalp in a pediatric burn unit. Results: Most of the patents were burn victms, but few other cases are described as well. The most common use of this donor area was for patents that had sufered pot immersion scalds where the back, gluteus and lower limbs were afected and no longer available as skin donor areas. The other main use was in facial burns and traumas, because the color similitude between the face and scalp renders a beter cosmetc result of facial skin grafs. This study demonstrates the short period of healing (3.5 days) of the donor area making possible its reuse in a shorter period of tme. The main complicaton was alopecia (1.8%) where the graf take was too deep. Conclusions: The study suggests the use of scalp donor area when other main donor areas are not available and for facial burns. Further studies should be performed in order to establish other observed benefts of the scalp as a donor area for split thickness skin grafs.


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Adolescente , Couro Cabeludo/transplante , Doadores de Tecidos , Queimaduras/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Traumatismos Faciais/cirurgia , Transplante de Face/métodos
14.
J Surg Oncol ; 113(8): 971-5, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27171619

RESUMO

Clinical face transplantation, only 10 years old, has evolved into a safe and preferred reconstructive option for the most severe facial defects, in which traditional reconstructive methods have yielded poor outcomes. The ability to simultaneously restore facial function and aesthetics has shown to improve patient's quality of life. Its applicability to post-oncologic resection, however, remains guarded given the current international experience with respect to long term outcomes. J. Surg. Oncol. 2016;113:971-975. © 2016 Wiley Periodicals, Inc.


Assuntos
Transplante de Face/métodos , Adulto , Traumatismos Faciais/cirurgia , Humanos , Masculino , Couro Cabeludo/transplante
15.
Plast Reconstr Surg ; 137(6): 1851-1861, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27219240

RESUMO

BACKGROUND: Vascularized composite allotransplantation is an emerging field, but the complications of lifelong immunosuppression limit indications. Vascularized composite allotransplantation in solid organ recipients represents a unique opportunity because immunosuppression has already been accepted. This report of a simultaneous scalp, skull, kidney, and pancreas transplant represents both the first skull-scalp transplant and combination of a vascularized composite allotransplantation with double organ transplantation. METHODS: A previous recipient of a kidney-pancreas transplant presented with osteoradionecrosis of the calvaria and a large area of unstable scalp following successful, curative treatment of a scalp tumor. His kidney and pancreas functions were also critically poor. A multidisciplinary, multi-institutional plan was developed to perform a simultaneous scalp, skull, and repeated kidney and pancreas transplantation, all from a single donor. RESULTS: Eighteen months after the patient was listed with the United Network for Organ Sharing, a donor was identified and the multiorgan vascularized composite allotransplantation was performed. Twenty physicians and 15 hours were required to perform donor and recipient procedures. The patient recovered well and was discharged on postoperative day 15. He has had one episode of scalp rejection confirmed by biopsy and treated successfully. His creatinine value is currently 0.8 mg/dl, from 5.0 mg/dl, and his blood glucose levels are normal without supplemental insulin. Aesthetic outcome is very satisfactory. The patient is now 1 year post-transplantation and doing well. CONCLUSIONS: Vascularized composite allotransplantation in solid organ recipients is an expansion of current indications to already immunosuppressed patients. Rejection of the vascularized composite allotransplant without solid organ rejection can occur and is treatable. Methodical planning, an interdisciplinary approach, and careful management of all organs are critical to success. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.


Assuntos
Transplante de Rim , Transplante de Pâncreas , Couro Cabeludo/transplante , Crânio/transplante , Doadores de Tecidos , Terapia Combinada , Aloenxertos Compostos , Diabetes Mellitus Tipo 1/cirurgia , Nefropatias Diabéticas/cirurgia , Seguimentos , Humanos , Comunicação Interdisciplinar , Colaboração Intersetorial , Leiomiossarcoma/cirurgia , Masculino , Pessoa de Meia-Idade , Osteorradionecrose/cirurgia , Osso Parietal/efeitos da radiação , Osso Parietal/cirurgia , Radioterapia Adjuvante , Reoperação/métodos , Neoplasias Cutâneas/cirurgia , Coleta de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/métodos
16.
Plast Reconstr Surg ; 137(5): 1569-1581, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27119930

RESUMO

BACKGROUND: The application of aesthetic, craniofacial, and microsurgical principles in the execution of face transplantation may improve outcomes. Optimal soft-tissue face transplantation can be achieved by incorporating subunit facial skeletal replacement and subsequent tissue resuspension. The purpose of this study was to establish a reconstructive solution for a full face and scalp burn and to evaluate outcome precision and consistency. METHODS: Seven mock face transplants (14 cadavers) were completed in the span of 1 year. Components of the vascularized composite allograft included the eyelids, nose, lips, facial muscles, oral mucosa, total scalp, and ears; and skeletal subunits of the zygoma, nasal bone, and genial segment. Virtual surgical planning was used for osteotomy selection, and to evaluate postoperative precision of hard- and soft-tissue elements. RESULTS: Each transplant experience decreased each subsequent transplant surgical time. Prefabricated cutting guides facilitated a faster dissection of both donor and recipient tissue, requiring minimal alteration to the allograft for proper fixation of bony segments during inset. Regardless of donor-to-recipient size discrepancy, ample soft tissue was available to achieve tension-free allograft inset. Differences between virtual transplant simulation and posttransplant measurements were minimal or insignificant, supporting replicable and precise outcomes. CONCLUSIONS: This facial transplant model was designed to optimize reconstruction of extensive soft-tissue defects of the craniofacial region representative of electrical, thermal, and chemical burns, by incorporating skeletal subunits within the allograft. The implementation of aesthetic, craniofacial, and microsurgical principles and computer-assisted technology improves surgical precision, decreases operative time, and may optimize function.


Assuntos
Aloenxertos Compostos , Face/cirurgia , Transplante de Face/métodos , Alotransplante de Tecidos Compostos Vascularizados/métodos , Queimaduras/cirurgia , Cadáver , Cefalometria , Dissecação , Orelha Externa/transplante , Estética , Pálpebras/transplante , Face/irrigação sanguínea , Face/inervação , Ossos Faciais/transplante , Traumatismos Faciais/diagnóstico por imagem , Traumatismos Faciais/cirurgia , Humanos , Imageamento Tridimensional , Microcirurgia , Modelos Anatômicos , Osteotomia/métodos , Couro Cabeludo/transplante , Doadores de Tecidos , Coleta de Tecidos e Órgãos/métodos
17.
Plast Reconstr Surg ; 137(5): 845e-854e, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27119947

RESUMO

BACKGROUND: Cadaveric face transplant models are routinely used for technical allograft design, perfusion assessment, and transplant simulation but are associated with substantial limitations. The purpose of this study was to describe the experience of implementing a translational donor research facial procurement and solid organ allograft recovery model. METHODS: Institutional review board approval was obtained, and a 49-year-old, brain-dead donor was identified for facial vascularized composite allograft research procurement. The family generously consented to donation of solid organs and the total face, eyelids, ears, scalp, and skeletal subunit allograft. RESULTS: The successful sequence of computed tomographic scanning, fabrication and postprocessing of patient-specific cutting guides, tracheostomy placement, preoperative fluorescent angiography, silicone mask facial impression, donor facial allograft recovery, postprocurement fluorescent angiography, and successful recovery of kidneys and liver occurred without any donor instability. Preservation of the bilateral external carotid arteries, facial arteries, occipital arteries, and bilateral thyrolinguofacial and internal jugular veins provided reliable and robust perfusion to the entirety of the allograft. Total time of facial procurement was 10 hours 57 minutes. CONCLUSIONS: Essential to clinical face transplant outcomes is the preparedness of the institution, multidisciplinary face transplant team, organ procurement organization, and solid organ transplant colleagues. A translational facial research procurement and solid organ recovery model serves as an educational experience to modify processes and address procedural, anatomical, and logistical concerns for institutions developing a clinical face transplantation program. This methodical approach best simulates the stressors and challenges that can be expected during clinical face transplantation. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.


Assuntos
Aloenxertos Compostos , Face/cirurgia , Transplante de Face/métodos , Treinamento por Simulação , Coleta de Tecidos e Órgãos/métodos , Pesquisa Translacional Biomédica , Alotransplante de Tecidos Compostos Vascularizados/métodos , Cadáver , Orelha Externa/transplante , Estética , Pálpebras/transplante , Face/diagnóstico por imagem , Ossos Faciais/transplante , Transplante de Face/educação , Humanos , Masculino , Microcirurgia , Pessoa de Meia-Idade , Couro Cabeludo/transplante , Obtenção de Tecidos e Órgãos
18.
J Plast Reconstr Aesthet Surg ; 69(6): 819-826, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27084573

RESUMO

BACKGROUND AND AIM: To accomplish total ear reconstruction with aesthetic appearance is a great challenge for plastic surgeons worldwide due to insufficient skin coverage. A retroauricular fascial flap and skin graft technique are commonly used, but the results obtained are not satisfactory due to color mismatch, severe edema, and donor-site morbidity. Here, we describe a novel strategy for total ear reconstruction, utilizing an extended retroauricular flap prelaminated with tissue expansion to obtain enough skin for ear reconstruction. METHODS: About 2 months before ear reconstruction, a kidney-shaped tissue expander was inserted at the mastoid region subcutaneously. The retroauricular skin became enlarged and thinner in 2 months after expansion. Next, the expander was removed and the retroauricular flap was extended by dissecting the surrounding scalp subcutaneously. By mobilizing the scalp-extended retroauricular flap, we could encapsulate the entire framework with thin and non-hair-bearing skin. RESULTS: From August 2014 to September 2015, 36 microtia patients had undergone ear reconstruction using the novel strategy. Satisfactory aesthetics along with fine structure, symmetry, and maintenance of the auriculocephalic angle was achieved in all patients. CONCLUSIONS: Using our novel strategy, we can obtain satisfactory aesthetic outcomes by fully mobilizing the expanded skin without additional morbidities of the donor sites. Patients are satisfied with the vivid ear contour and lack of groin scar.


Assuntos
Microtia Congênita/cirurgia , Pavilhão Auricular , Procedimentos de Cirurgia Plástica/métodos , Couro Cabeludo/transplante , Retalhos Cirúrgicos , Expansão de Tecido , Adolescente , Adulto , Criança , China , Pavilhão Auricular/anormalidades , Pavilhão Auricular/cirurgia , Feminino , Humanos , Masculino , Satisfação do Paciente , Transplante de Pele/métodos , Expansão de Tecido/instrumentação , Expansão de Tecido/métodos , Dispositivos para Expansão de Tecidos , Resultado do Tratamento
19.
Am J Dermatopathol ; 38(10): 732-8, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26844618

RESUMO

Follicular unit transplantation is the most commonly performed technique in modern restorative hair transplantation surgery. It relies on the acquisition of intact follicular units from microdissected scalp skin strips and their subsequent transplantation into the recipient regions affected by alopecia. Ideally, the translocation of follicular units from the balding-resistant areas of the scalp (usually the occipital region) to the recipient site should not result in any morphological change in the grafts. Nevertheless, the insults associated with surgical intervention present grafted follicles to mechanical and chemical cues differently from those of the physiological steady-state conditions in undamaged skin. This disruption of the normal follicular microenvironment might alter important aspects of hair biology in grafts, for example, hair cycle and pigmentation, and, in turn, could lead to differences in hair appearance, eventually culminating in a diminished esthetical outcome of the surgery. In this study, the authors analyzed native and grafted scalp hair follicles (HFs) from 2 patients who had undergone follicular unit transplantation surgeries formerly. Scanning electron microscopy and light microscopy-based histomorphometry revealed a marked enlargement of follicular structures in the grafts with a concomitant increase in hair shaft diameter. Immunohistological staining confirmed a thickening of the dermal sheath in transplanted HFs that also harbored a denser vascular network. Taken together, these results show that the grafted HFs analyzed were subjected to marked morphological changes during their residence in the recipient site and that this phenomenon is associated with a modulation of follicular vascularization.


Assuntos
Alopecia/cirurgia , Folículo Piloso/transplante , Couro Cabeludo/transplante , Adulto , Alopecia/diagnóstico , Alopecia/patologia , Biópsia , Imunofluorescência , Folículo Piloso/irrigação sanguínea , Folículo Piloso/crescimento & desenvolvimento , Folículo Piloso/ultraestrutura , Humanos , Masculino , Microscopia Eletrônica de Varredura , Neovascularização Fisiológica , Couro Cabeludo/irrigação sanguínea , Couro Cabeludo/crescimento & desenvolvimento , Couro Cabeludo/ultraestrutura , Fatores de Tempo , Transplante Autólogo , Resultado do Tratamento
20.
Artigo em Chinês | MEDLINE | ID: mdl-26898868

RESUMO

OBJECTIVE: To investigate the clinical application of scalp skin grafts in reconstruction of external auditory meatus in congenital aural atresia. METHODS: We conducted a retrospective study on 85 patients of congenital aural atresia, all of whom were unilateral, operated from March of 2008 to December of 2010 in ENT department of the Sun Yat-Sen Memorial Hospital. The patients enrolled in the study were between 6 to 37 years old (median age 12 years), 55 male and 30 female. Scalp surface graft in ipsilateral temporal region was harvested to cover the bony external auditory meatus. RESULTS: All of these scalp split-thickness skin grafts survived without necrosis, no restenosis was found in these external auditory meatus. Neither scar nor alopecia was found in the skin-harvesting region, and hairs grew well. Granulations occurred in 27 cases in the first to sixth month posteroperatively, 20 cases recovered after local treatment. In the first year, 30 cases obtained hearing improvement more than 15 dB, 36 cases gained more than 25 dB and 19 cases gained more than 35 dB. Totally 8 patients were lost in the 4 to 5 years of follow-up, 70 cases (70/77, 90.9%) developed new external auditory meatus, 7 cases (7/77, 9.1%) suffered from stenosis in different degrees, but no atresia was found in these patients. CONCLUSION: Scalp split-thickness skin grafts has significant clinical advantage in meatoplasty of congenital aural atresia.


Assuntos
Anormalidades Congênitas/cirurgia , Meato Acústico Externo/cirurgia , Orelha/anormalidades , Procedimentos de Cirurgia Plástica , Couro Cabeludo/transplante , Transplante de Pele , Adolescente , Adulto , Criança , Cicatriz , Constrição Patológica , Orelha/cirurgia , Feminino , Humanos , Masculino , Complicações Pós-Operatórias , Estudos Retrospectivos , Adulto Jovem
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