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1.
Mol Pharm ; 21(9): 4450-4464, 2024 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-39163171

RESUMO

Microneedle (MN) patches are gaining increasing attention as a cost-effective technology for delivering drugs directly into the skin. In the present study, two different 3D printing processes were utilized to produce coated MNs, namely, digital light processing (DLP) and semisolid extrusion (SSE). Donepezil (DN), a cholinesterase inhibitor administered for the treatment of Alzheimer's disease, was incorporated into the coating material. Physiochemical characterization of the coated MNs confirmed the successful incorporation of donepezil as well as the stability and suitability of the materials for transdermal delivery. Optical microscopy and SEM studies validated the uniform weight distribution and precise dimensions of the MN arrays, while mechanical testing ensured the MNs' robustness, ensuring efficient skin penetration. In vitro studies were conducted to evaluate the produced transdermal patches, indicating their potential use in clinical treatment. Permeation studies revealed a significant increase in DN permeation compared to plain coating material, affirming the effectiveness of the MNs in enhancing transdermal drug delivery. Confocal laser scanning microscopy (CLSM) elucidated the distribution of the API, within skin layers, demonstrating sustained drug release and transcellular transport pathways. Finally, cell studies were also conducted on NIH3T3 fibroblasts to evaluate the biocompatibility and safety of the printed objects for transdermal applications.


Assuntos
Administração Cutânea , Doença de Alzheimer , Inibidores da Colinesterase , Donepezila , Sistemas de Liberação de Medicamentos , Agulhas , Impressão Tridimensional , Donepezila/administração & dosagem , Donepezila/química , Animais , Camundongos , Doença de Alzheimer/tratamento farmacológico , Células NIH 3T3 , Sistemas de Liberação de Medicamentos/métodos , Inibidores da Colinesterase/administração & dosagem , Inibidores da Colinesterase/farmacocinética , Inibidores da Colinesterase/química , Absorção Cutânea/efeitos dos fármacos , Pele/metabolismo , Pele/efeitos dos fármacos , Liberação Controlada de Fármacos , Adesivo Transdérmico , Humanos
2.
J Craniofac Surg ; 35(5): 1488-1491, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722371

RESUMO

INTRODUCTION: Total nose reconstruction is demanding as it is a 3-dimensional structure that needs lining, support and external coverage. Usually, several stages are needed to achieve a satisfactory result. The authors present 2 cases of prelaminated radial forearm and 2 prelaminated forehead nose reconstructions and compare both methods. According to our review of the literature, this is the first report of prelaminated forehead for total nose reconstruction. MATERIALS AND METHODS: The last 5 years the authors have treated 4 patients with prelaminated flaps for total nose reconstruction. The age ranged from 50 to 75 years. There were 3 male patients and one female. Three patients underwent total nose amputation due to squamous cell carcinoma and one due to melanoma. RESULTS: Two patients were treated with prelaminated radial forearm reconstruction and 2 with prelaminated forehead reconstruction. Both patients that were treated with prelaminated radial forearm reconstruction had the collapse of the nasal pyramid and had salvage procedures with replacement of the cartilaginous framework with iliac bone graft framework. CONCLUSIONS: Prelaminated nose reconstruction with either the radial forearm or forehead flap needs several stages. There is the possibility of infection-collapse of the cartilage framework, therefore, the authors recommend reconstruction of the nasal skeleton with an iliac bone graft. The flaps are stiff and difficult to handle. The authors don't think that prelaminated nose reconstruction with the radial forearm flap has advantage compared with the classic several stages nose reconstruction with radial forearm flap. Possibly, prelaminated forehead reconstruction can be applied for aged patients who cannot undergo microsurgical reconstruction.


Assuntos
Testa , Neoplasias Nasais , Rinoplastia , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Testa/cirurgia , Rinoplastia/métodos , Idoso , Neoplasias Nasais/cirurgia , Antebraço/cirurgia , Retalhos Cirúrgicos , Carcinoma de Células Escamosas/cirurgia , Sítio Doador de Transplante/cirurgia , Melanoma/cirurgia
3.
J Reconstr Microsurg ; 40(2): 145-155, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37142251

RESUMO

BACKGROUND: The aim of our study was to evaluate a new propeller vascularized lymphatic tissue flap (pVLNT) combined with aligned nanofibrillar collagen scaffolds (CS) (BioBridge) in reducing lymphedema in the rat lymphedema model. METHODS: Unilateral left hindlimb lymphedema was created in 15 female Sprague-Dawley rats following inguinal and popliteal lymph nodes (LN) resection and radiation. An inguinal pVLNT was elevated from the contralateral groin and transferred through a skin tunnel to the affected groin. Four collagen threads were attached to the flap and inserted in the hindlimb at the subcutaneous level in a fan shape. The three study groups consisted of group A (control), group B (pVLNT), and group C (pVLNT + CS). Volumetric analysis of both hindlimbs was performed using micro-computed tomography imaging before the surgery (at initial time point) and then at 1 and 4 months, postoperatively, and the relative volume difference (excess volume) was measured for each animal. Lymphatic drainage was assessed by indocyanine green (ICG) fluoroscopy for number and morphology of new collectors and the time required for ICG to move from injection point to the midline. RESULTS: Four months after the induction of lymphedema, an increased relative volume difference remained in group A (5.32 ± 4.74%), while there was a significant relative volume reduction in group B (-13.39 ± 8.55%) and an even greater reduction in group C (-14.56 ± 5.04%). ICG fluoroscopy proved the functional restoration of lymphatic vessels and viability of pVLNT in both B and C groups. Notably, only group C demonstrated statistically significant improvements in lymphatic pattern/morphology and in the number of lymphatic collectors as compared with the control group A. CONCLUSION: The pedicle lymphatic tissue flap combined with SC is an effective procedure for the treatment of lymphedema in rats. It can be easily translated into treatment of humans' lower and upper limb lymphedema and further clinical studies are warranted.


Assuntos
Vasos Linfáticos , Linfedema , Humanos , Ratos , Feminino , Animais , Microtomografia por Raio-X , Ratos Sprague-Dawley , Linfedema/cirurgia , Linfonodos , Vasos Linfáticos/cirurgia , Colágeno
4.
Int J Mol Sci ; 22(6)2021 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-33802984

RESUMO

Hybrid composites of synthetic and natural polymers represent materials of choice for bone tissue engineering. Ulvan, a biologically active marine sulfated polysaccharide, is attracting great interest in the development of novel biomedical scaffolds due to recent reports on its osteoinductive properties. Herein, a series of hybrid polycaprolactone scaffolds containing ulvan either alone or in blends with κ-carrageenan and chondroitin sulfate was prepared and characterized. The impact of the preparation methodology and the polysaccharide composition on their morphology, as well as on their mechanical, thermal, water uptake and porosity properties was determined, while their osteoinductive potential was investigated through the evaluation of cell adhesion, viability, and osteogenic differentiation of seeded human adipose-derived mesenchymal stem cells. The results verified the osteoinductive ability of ulvan, showing that its incorporation into the polycaprolactone matrix efficiently promoted cell attachment and viability, thus confirming its potential in the development of biomedical scaffolds for bone tissue regeneration applications.


Assuntos
Organismos Aquáticos/química , Osso e Ossos/fisiologia , Osteogênese/efeitos dos fármacos , Poliésteres/química , Polissacarídeos/farmacologia , Engenharia Tecidual , Alicerces Teciduais/química , Osso e Ossos/efeitos dos fármacos , Adesão Celular/efeitos dos fármacos , Elasticidade , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Células-Tronco Mesenquimais/citologia , Células-Tronco Mesenquimais/efeitos dos fármacos , Células-Tronco Mesenquimais/metabolismo , Polissacarídeos/ultraestrutura , Espectroscopia de Infravermelho com Transformada de Fourier , Termogravimetria , Água/química
5.
J Reconstr Microsurg ; 37(3): 208-215, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32892331

RESUMO

BACKGROUND: The use of autologous tissues is considered the mainstay for delayed breast reconstruction. Aside the free abdominal flaps, which are most commonly used, the fat-augmented latissimus-dorsi (FALD) flap has been recently shown a reliable alternative option for pure autologous breast reconstruction. In this retrospective study, we aim to compare outcomes of autologous breast reconstructions using the extended FALD and deep inferior epigastric perforator flap (DIEP) flap, with an emphasis on patients' characteristics, demographic data, complications, and patients' satisfaction after a minimum 12-month follow-up. METHODS: Our series consists of 135 women who underwent a delayed postmastectomy unilateral autologous breast reconstruction from 2011 to 2017: 36 patients (Group A) had an extended FALD flap and 99 (Group B) a free DIEP flap performed by the same surgeons. Demographic data, breast volume, medical history, smoking, complications, and patients' satisfaction were recorded and analyzed. Student's t-test for independent variables, Mann-Whitney U-test, and Chi-squared test were used to compare the reported variables. RESULTS: Patients' age, body mass index (BMI), and pregnancy history were statistically different between groups (p < 0.001, p = 0.004, p < 0.001, respectively); younger age (35.1 vs. 41.2 years), lower BMI (25.6 vs. 28.4), and fewer pregnancies were recorded in Group A. Breast volume was also found significantly smaller in Group A patients (p = 0.009). Past medical history using the ASA physical status classification score, previous radiation therapy, history of smoking, and incidence of overall complications were similar in both groups. Overall satisfaction scores were found slightly higher, but not statistically significant, in the free-flap group (p = 0.442). CONCLUSION: The use of the FALD flap may provide comparable outcome to the DIEP flap in delayed breast reconstruction in terms of complications and patients' satisfaction; it should be considered a good reconstructive option for young and thin nulliparous patients, with small to medium size opposite breast.


Assuntos
Mamoplastia , Retalho Perfurante , Músculos Superficiais do Dorso , Neoplasias da Mama/cirurgia , Artérias Epigástricas/cirurgia , Feminino , Humanos , Mastectomia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Músculos Superficiais do Dorso/transplante , Resultado do Tratamento
6.
Aesthetic Plast Surg ; 44(5): 1871-1878, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32215696

RESUMO

INTRODUCTION: Concepts of beauty are different amongst different cultures and civilizations. The objective of this study was to evaluate beauty perceptions through cosmetic advertisements in an effort to further appreciate beauty understanding amongst lay people in various parts of the world. To achieve these objectives, we reviewed cosmetics' advertisements to study whether the concept of beauty varies amongst different countries. MATERIALS AND METHODS: We used the keywords "cosmetics" and "advertisements" in YouTube search engine in all existing languages in Google translator and came up with advertisements from 18 countries. The faces of the models were compared against Marquardt® beauty mask template in order to have a mean to objectively test symmetry with a mathematical computer model. The weak point of our study is that we can present no model photographs due to General Data Protection Regulation. RESULTS: Advertisements retrieved in total were 257. Characteristics with no statistically significant difference (SSD) amongst models in different parts of the world were: symmetry (p = 0.187), high cheek bones (p = 0.325), small noses (p = 0.72), thin jaws (p = 0.98), lush hair (p = 0.54), clean and smooth skin (p = 0.367), and white toothed smile (p = 0.235). Characteristics with SSD were: in Latin America, USA, and Australia tanned models and fuller lips were preferred (p < 0.001), whilst in Asia milky white skin models and small mouth were preferred. Age ratio (p = 0.022) was lower amongst models in Southeast Asia compared to American, European, Indian, Australian, and Arab models. Arab and Southeast Asia women had intense eyebrows (p < 0.001) and used artificial eyelashes. CONCLUSIONS: All the common characteristics noted by the two independent surgeons (GAS and LP) referred to symmetry, youthfulness, and health. Differences noticed reflected cultural influences in the perception of beauty. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Beleza , Cosméticos , Publicidade , Austrália , Face , Feminino , Humanos , Percepção
7.
Aesthetic Plast Surg ; 44(5): 1952, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32358667

RESUMO

Georgia-Alexandra Spyropoulou's name appeared incorrectly in the original publication of this article. It appears correctly here.

8.
J Surg Oncol ; 120(6): 911-918, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31376162

RESUMO

BACKGROUND: A new technique named "Selected Lymph Node" ("SeLyN") was evaluated, aiming to identify the most functional groin lymph nodes (LNs) for an effective LN transplantation. METHODS: Bilateral lower-limb SPECT-CT was performed in the upper-limb lymphedema patients, to select the most radioactive inguinal LN. Recorded data included demographics, stage, etiology of lymphedema, flap consistency in accordance to preoperative findings, flap size, number of LN, and harvesting time. Infection episodes per year and volume changes of the upper limbs were documented. Donor-site complications were recorded and lower-limb evaluation was performed through clinical examination, volume analysis, and lymphoscintigraphy. RESULTS: A total of 41 patients underwent a "SeLyN" transfer technique. The mean flap size was 28.34 cm2 containing a mean of 3.4 LNs. The mean time spent on flap harvest was 39 minutes. A mean 56.5% volume reduction (P < .001) and a mean 1.41 to 0.29 infection episodes per patient per year (P < .001) were recorded. Clinical evaluation and lymphography of the donor site advocated no major complications for a mean follow-up period of 42.5 months. CONCLUSIONS: "SeLyN" is a safe and effective technique in selecting the most suitable LNs, minimizing the donor-site morbidity, and decreasing the overall operating time.


Assuntos
Neoplasias da Mama/cirurgia , Virilha/cirurgia , Linfonodos/transplante , Vasos Linfáticos/cirurgia , Linfedema/cirurgia , Linfocintigrafia/métodos , Procedimentos de Cirurgia Plástica/métodos , Adulto , Idoso , Neoplasias da Mama/patologia , Feminino , Seguimentos , Humanos , Linfonodos/diagnóstico por imagem , Linfedema/diagnóstico por imagem , Linfedema/etiologia , Masculino , Mastectomia/efeitos adversos , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Tomografia Computadorizada por Raios X/métodos
9.
Int Wound J ; 16(6): 1471-1476, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31486248

RESUMO

One of the most severe complications in aesthetic and reconstructive surgeries is the partial or total necrosis of a skin flap. In our experimental study, we demonstrated the use of adipose-derived stem cells in the increase of skin flap survival rates. Stem cells were isolated from the fat of Wistar rats and genetically modified to permanently produce a green fluorescent protein (GFP). Two random-pattern skin flaps (2 cm × 8 cm) were elevated on the dorsal area of the spine, and after being separated from the surgical wounds with a thin silicone sheet, they were placed back onto their original location. Then, the autologous GFP-producing cells were injected intradermally into the dorsal area of the rats. At the seventh day, after the implantation of the stem cells, a clinical and immunohistochemical control was performed. The fluorescence microscopy revealed green vascular formations, suggesting that autologous GFP stromal cells were converted into endothelial cells through neovascularization. In the control skin flaps, where no stromal cells were used, no fluorescence was observed. The statistical analysis showed significantly lower necrosis rates in the right-sided flaps (i.e., the flaps where adipose-derived stromal cells were injected) compared with the left-sided ones. Findings from our study demonstrate that adipose-derived stem cells play an important role in the improvement of skin flap survival. Neovascularization is an effective way of achieving it.


Assuntos
Tecido Adiposo/citologia , Sobrevivência de Enxerto , Neovascularização Fisiológica , Células Estromais/citologia , Retalhos Cirúrgicos , Animais , Diferenciação Celular , Células Endoteliais/citologia , Proteínas de Fluorescência Verde , Microscopia de Fluorescência , Modelos Animais , Ratos Wistar , Transplante de Células-Tronco , Retalhos Cirúrgicos/irrigação sanguínea , Transplante Autólogo
10.
J Wound Care ; 27(10): 637-644, 2018 10 02.
Artigo em Inglês | MEDLINE | ID: mdl-30332355

RESUMO

OBJECTIVE: Limited data exist regarding the correlation between adipose-derived stromal vascular fraction (SVF) and wound healing. The aim of this study was to investigate the direct effect of intradermally injected SVF on full-thickness cutaneous wounds in a murine model. METHOD: Wistar rats were divided into three groups (A, B and C) according to their day of euthanasia (day 7, 16 and 21). Inguinal fat pad was excised and SVF enzymatically extracted. Full-thickness cutaneous wounds were created on each side of the dorsum; SVF injected intradermally at one side while the contralateral wound served as control receiving normal saline. Postoperatively, evaluation of wound healing was performed by planimetry (percentages of wound contraction, epithelialisation and total wound healing) on days 0, 3, 5, 7, 10, 13, 16 and 21, and histology and immunochemistry (cellular infiltration score, collagen production score, neoangiogenesis and epithelial thickness) on days 7, 16 and 21. RESULTS: Despite the high rate of wound contraction, it was significantly lower in the SVF-treated wounds on day 21 (p=0.037). On days 13, 16 and 21, the percentages of epithelialisation were higher in the SVF-treated wounds compared with control wounds (p=0.026, p=0.048 and p=0.05, respectively). Histologically, the number of new vessels was significantly higher in the SVF-treated wounds compared with controls on days seven (p=0.028) and 16 (p=0.027). This was also confirmed by immunohistochemistry. No significant differences were found between treated and control wounds regarding cellular infiltration score, collagen production score and epithelial thickness. CONCLUSION: Data indicate that intradermally injected SVF increases angiogenesis and enhances epithelialisation in full-thickness cutaneous wounds in rats.


Assuntos
Tecido Adiposo , Ferida Cirúrgica/terapia , Animais , Modelos Animais de Doenças , Injeções Intradérmicas , Masculino , Ratos , Ratos Wistar , Reepitelização , Células Estromais/citologia , Células Estromais/transplante , Cicatrização
11.
Aesthetic Plast Surg ; 42(3): 692-701, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29372268

RESUMO

BACKGROUND: Although free abdominal flaps constitute the gold standard in post-radiation delayed breast reconstruction, latissimus dorsi-based methods offer alternative reconstructive options. This retrospective study aims to compare outcomes of delayed breast reconstruction using the fat-augmented latissimus dorsi (FALD) autologous reconstruction and the latissimus dorsi-plus-implant reconstruction in irradiated women. METHODS: We reviewed the files of 47 post-mastectomy irradiated patients (aged 29-73 years), who underwent delayed latissimus dorsi-based breast reconstruction between 2010 and 2016. Twenty-three patients (Group A) had an extended FALD flap and twenty-four patients (Group B) an implant-based latissimus dorsi reconstruction. Patients' age, BMI, pregnancies, volume of injected fat, implant size, postoperative complications, and secondary surgical procedures were recorded and analyzed. RESULTS: Age, BMI, pregnancies, and donor-site complications were similar in both groups (p > 0.05). Mean fat volume injected initially was 254 cc (ranged 130-380 cc/session); mean implant volume was 323 cc (ranged 225-420 cc). Breast complications were significantly fewer in Group A (one wound dehiscence, two oily cysts) compared to Group B (three cases with wound dehiscence, two extrusions, thirteen severe capsular contractions). Non-statistically significant difference was documented for secondary procedures between groups; although the mean number of additional surgeries/patient was higher in Group A, they referred to secondary lipofilling, whereas in Group B they were revision surgeries for complications. CONCLUSIONS: The FALD flap constitutes an alternative method for delayed autologous reconstruction after post-mastectomy irradiation, avoiding implant-related complications. Although additional fat graft sessions might be required, it provides an ideal autogenous reconstructive option for thin nulliparous women, with a small opposite breast and adequate fat donor sites. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Neoplasias da Mama/radioterapia , Retalhos de Tecido Biológico/transplante , Mamoplastia/métodos , Músculos Superficiais do Dorso/transplante , Tecido Adiposo/transplante , Adulto , Idoso , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Distribuição de Qui-Quadrado , Estudos de Coortes , Bases de Dados Factuais , Estética , Feminino , Seguimentos , Sobrevivência de Enxerto , Humanos , Mastectomia/métodos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/fisiopatologia , Complicações Pós-Operatórias/cirurgia , Reoperação , Estudos Retrospectivos , Medição de Risco , Estatísticas não Paramétricas , Fatores de Tempo , Tempo para o Tratamento , Transplante Autólogo/métodos , Resultado do Tratamento
13.
Aesthet Surg J ; 37(3): 316-323, 2017 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-28158391

RESUMO

Background: With seroma formation being the most common complication of abdominoplasty, multiple surgical strategies have been proposed to lower the seroma rate, yet their effectiveness is unclear. Objectives: The objective of this systematic review and meta-analysis was to comprehensively summarize and quantify the effects of preventive surgical measures for seroma in patients undergoing abdominoplasty. Methods: A predetermined protocol was used. An electronic search in MEDLINE, Scopus, the Cochrane Library, and CENTRAL electronic databases was conducted from inception to June 2016. This search was supplemented by a review of reference lists of potentially eligible studies and a manual search of key journals in the field of plastic surgery. Eligible studies were prospective controlled studies, which investigated prevention of seroma formation and reported on seroma rate. Secondary outcomes were rate of hematoma, wound dehiscence, infection, reoperation and hospital readmission, time to drain removal, total drain output, and length of hospital stay. Results: The meta-analysis included nine studies with 664 abdominoplasty patients. Seroma rate was 7.5% in the prevention group and 19.5% in the control group with the odds ratio (95% confidence interval) being 0.26 (0.10-0.67), P = .006, favoring the prevention group. Similar results were also revealed for infection rate, time to drain removal, and length of hospital stay. Subgroup analysis showed that preservation of Scarpa's fascia, tissue adhesives and, possibly, progressive tension sutures reduce, independently, seroma formation. Conclusions: This meta-analysis provides strong evidence that the use of certain preventive measures during abdominoplasty, compared to conventional procedure, reduces seroma formation.


Assuntos
Abdominoplastia/métodos , Complicações Pós-Operatórias/prevenção & controle , Seroma/prevenção & controle , Parede Abdominal/anatomia & histologia , Parede Abdominal/cirurgia , Abdominoplastia/efeitos adversos , Abdominoplastia/instrumentação , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Razão de Chances , Readmissão do Paciente/estatística & dados numéricos , Estudos Prospectivos , Reoperação/estatística & dados numéricos , Seroma/etiologia , Técnicas de Sutura , Adesivos Teciduais/uso terapêutico
14.
Hell J Nucl Med ; 20 Suppl: 131-135, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29324922

RESUMO

AIM: To report our initial experience and preliminary results of autologous free fat transfer to improve speech and hypernasality in patients with velopharyngeal insufficiency (VPI) as a sequela of cleft lip and palate repair. MATERIAL AND METHODS: To date 2 patients with a mean age of 25 years were treated with this method. Both had initially received multiple procedures elsewhere for cleft lip and palate repair. We recorded the number of free fat transfer sessions, anatomical places of placement and volumes injected in-patient stay, occurrence or absence of complications and effectiveness of this operation in terms of clinical speech evaluation, functional velopharyngeal closure measurements and speech improvement percentage by an Ear, Nose and Throat (ENT) specialist. RESULTS: Two autologous free fat transfer sessions per patient were performed. Mean hospitalization time was 1 day per operation. Following liposuction, autologous free fat was transferred to the following anatomical areas: a) Passavant's ridge, b) uvula, c) palatopharyngeal and palatoglossal folds. The volume of fat injected varied from 6.5 cc to 8 cc per session. Postoperative periods were uneventful for both cases in each session. On clinical examination, improvement in speech was noted as well as a reduction in hypernasality with an improvement in articulation and audibility of consonant words, which were also reported by the patients' relatives. This was confirmed by objective nasendoscopy velopharyngeal closure measurements, both during speech and deglutition. CONCLUSION: Augmentation pharyngoveloplasty with autologous free fat transfer in patients with velopharyngeal insufficiency is a safe and innovative alternative, particularly for small to medium degrees of structural velophayngeal dysfunction.


Assuntos
Tecido Adiposo , Procedimentos de Cirurgia Plástica , Insuficiência Velofaríngea/cirurgia , Adulto , Feminino , Humanos , Masculino , Procedimentos de Cirurgia Plástica/efeitos adversos , Recuperação de Função Fisiológica , Fala , Resultado do Tratamento , Insuficiência Velofaríngea/fisiopatologia
15.
Breast Cancer Res Treat ; 156(1): 73-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26895326

RESUMO

Microsurgical techniques are increasingly used for treating severe lymphoedema cases. The purpose of this study was to evaluate the effectiveness of free vascularized lymph node transfer (LNT) in stage II breast cancer-related lymphoedema patients in comparison with non-surgical management. During the last 3 years, 83 female patients were examined at our lymphoedema clinic. Finally, 36 cases were included in this study and randomly divided in two groups: group A patients (n = 18, mean age 47 years) underwent microsurgical LNT; followed by 6 months of physiotherapy and compression, while group B patients (n = 18, mean age 49 years) were managed by physiotherapy and compression alone for 6 months. Patients of both groups removed their elastic garments after 6 months and were re-examined 1 year later. All the 36 patients had detailed evaluation of the affected extremity including limb volume measurement, infection episodes and scale scoring of pain, feeling of heaviness and functional status both at baseline and 18 month. Limb volume reduction was observed in both groups; mean reduction was greater in group A (57 %) than in group B (18 %). Infection episodes in group A were significantly reduced compared to those in group B patients. All group A patients reported painless and feeling of heaviness-free extremities with overall functional improvement, while the corresponding changes in group B patients were no more than marginal. Moreover, the LNT procedure was estimated as cost effective compared to conservative treatment alone. LNT represents an effective therapeutic approach for stage II lymphoedema patients; it significantly reduces limb volume, decreases recurrent infections and improves the overall function.


Assuntos
Linfedema Relacionado a Câncer de Mama/patologia , Linfedema Relacionado a Câncer de Mama/terapia , Terapia Combinada/métodos , Adulto , Feminino , Humanos , Microcirurgia , Pessoa de Meia-Idade , Modalidades de Fisioterapia , Retalhos Cirúrgicos , Resultado do Tratamento
16.
J Hand Surg Am ; 41(12): e477-e479, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27653143

RESUMO

Dupuytren disease in children younger than 10 years is rare and only 8 histologically proven cases have been reported. A histologically proven Dupuytren disease in a 10-year-old with an uncommon clinical presentation as a nodule on the radial side of the middle phalanx of the little finger is documented. Dupuytren's disease should be in the differential diagnosis in cases of nodules and contractures in the palm and fingers of children.


Assuntos
Contratura de Dupuytren/patologia , Contratura de Dupuytren/cirurgia , Fasciotomia/métodos , Idade de Início , Biópsia por Agulha , Criança , Contratura de Dupuytren/diagnóstico , Seguimentos , Humanos , Imuno-Histoquímica , Masculino , Doenças Raras , Índice de Gravidade de Doença , Resultado do Tratamento , Cicatrização
17.
Pediatr Dermatol ; 32(6): 830-5, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26337780

RESUMO

INTRODUCTION: Extravasation injuries are a common and challenging problem in hospitalized newborns. Accidental infusion leakage into the surrounding tissues in immature infants may frequently result in skin necrosis, with significant risk of functional and cosmetic impairment. MATERIAL AND METHODS: In the present study we reviewed 34 cases of severe extravasation injuries occurring in 1,409 neonates hospitalized in a single neonatal unit over 24 months (incidence 2.4%). Total parenteral nutrition solutions were involved in most cases. All patients were treated within 30 minutes after the injury was recorded using a flush-out technique with normal saline irrigation and occlusive paraffin dressings of the infiltrated area. RESULTS: The majority of injuries affected preterm, low-birthweight infants (mean gestation 32 wks + 6 days, mean birth weight 1,885 g), with a mean age at the time of injury of 11.6 days and a mean weight of 2,045 g. Neither gestational age (p = 0.87) or birthweight significantly affected (p = 0.07) the incidence of extravasation injuries, although the incidence of skin necrosis had a significant correlation with gestational age (p = 0.009) and birthweight (p < 0.001). All patients responded well to treatment and their wounds healed uneventfully within a maximum of 25 days without the need for secondary surgery for skin coverage. CONCLUSION: Extravasation injuries in extremely preterm and low-birthweight infants are more likely to lead to skin necrosis. Peripheral venous catheterization should be performed with caution in these patients to prevent such injuries. Immediate irrigation with normal saline is recommended to reduce toxic sequelae in the infiltrated area.


Assuntos
Edema/etiologia , Extravasamento de Materiais Terapêuticos e Diagnósticos/complicações , Recém-Nascido de Baixo Peso , Dermatopatias/etiologia , Lesões dos Tecidos Moles/etiologia , Lesões dos Tecidos Moles/terapia , Cateterismo Periférico/efeitos adversos , Cateterismo Periférico/métodos , Estudos de Coortes , Edema/fisiopatologia , Edema/terapia , Extravasamento de Materiais Terapêuticos e Diagnósticos/diagnóstico , Extravasamento de Materiais Terapêuticos e Diagnósticos/epidemiologia , Feminino , Humanos , Doença Iatrogênica/prevenção & controle , Incidência , Recém-Nascido , Recém-Nascido Prematuro , Unidades de Terapia Intensiva Neonatal , Masculino , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Dermatopatias/patologia , Dermatopatias/terapia , Lesões dos Tecidos Moles/fisiopatologia , Resultado do Tratamento , Cicatrização/fisiologia
18.
Hell J Nucl Med ; 18 Suppl 1: 140, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26665223

RESUMO

OBJECTIVE: Cleft lip and palate (CLP) is comprised within the wide range of congenital deformities of the maxillofacial region with an overall incidence on the increase from 1:1000 to 1:700 live births thus being the most common congenital birth error. Failure of the lateral and medial nasal processes to fuse with the anterior extension of maxillary processes and of the palatal shelves between the 4th and 8th gestational week results in cleft lip and palate. Clefts include different types with variable severity, confirming the complexity and unpredictable expression of cleft modality and have a multifactorial aetiology. Functional impairment, aesthetic disturbances and psychosocial effects are common sequalae in patients with cleft lip and palate. The main long-term morbidity of this condition may include dysfunctional speech, impaired hearing and communication, as well as dental problems. These complications are followed by unfavourable surgical outcome and aesthetic appearance, which all seem to affect this group of patients significantly and have an impact significantly both quality of life and healthcare. Treatment requirements of cleft patients are multifactorial and a multi-disciplinary approach and intervention at multiple levels is necessary. Yet, in this country, resources available to parents and consistent publicity given to this issue and its treatment are still inadequate in spite of the introduction of "Centres of Excellence" and Unified Hospitalization Coding or DRG equivalents to optimize health management. The multi-disciplinary approach to cleft management has been a reality for over a century while cleft treatment protocols are still being evaluated in order to optimise standards of cleft care. According to relevant guidelines primary surgical management of lip and palate defects is performed during the first 3 to 9 months of life. Secondary operations in the form of revisional lip and nose procedures are performed at later stages aiming with an aesthetically improved outcome. Indications for surgery include widened scars, lip contour deformities, shortened lips, poorly defined and flattened nasal tip, short columella and irregularities of the nostrils (narrow or high-riding) and cartilages. Wound dehiscence, contractures, vermilion notching, white roll malalignment and orovestibular fistulas are possible unfavourable results after cleft lip repair. The psychological status of children and adults with repaired cleft lip and palate has been the subject of extensive research especially regarding the way of their evaluation facial appearance, satisfaction and need for secondary corrective surgical procedures in the hope of increasing their self-esteem and self-confidence. CONCLUSION: The aim of this study was to assess secondary CLP deformity management in an accredited present-day tertiary hospital facility with an existing infrastructure of a specialist teams however not formed in a multidisciplinary group. Equally, to answer questions of specific operation indications and choice as related to prior surgeries, hospitalization time and cost, provision of adequate preoperative information, correlation between paediatric and plastic surgeons and effect of post-plastic surgical care on patients' health and well-being. It also aims at presenting, beyond our current primary cleft lip and palate repair approach, appropriate indications and timing of secondary repair and achieved results.

19.
Indian J Plast Surg ; 48(1): 85-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25991894

RESUMO

This study aims to present the case of a female patient with Poland's syndrome and pectus excavatum deformity who underwent breast and chest wall reconstruction with a pre-shaped free deep inferior epigastric perforator flap. A 57-year-old female patient with Poland's syndrome and pectus excavatum presented with a Baker III capsular contracture following a previously performed implant-based right breast reconstruction. After a chest and abdominal CT angiography, she was staged as 2A1 chest wall deformity according to Park's classification and underwent implant removal and capsulectomy, followed by a pre-shaped free abdominal flap transfer, providing both breast reconstruction and chest wall deformity correction in a single stage operation. Post-operative course was uneventful, and the aesthetic result remains highly satisfactory 24 months after surgery. Deep inferior epigastric free flap represents an interesting reconstructive solution when treating Poland's syndrome female patients with chest wall and breast deformities.

20.
Cureus ; 16(7): e64163, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39119435

RESUMO

Keloids are complex fibroproliferative disorders with diverse clinical presentations. Spontaneous keloids (SKs) represent a rare subtype that emerges without any known preceding traumatic event. This report presents a case of familial spontaneous keloids appearing on the thoracic region in two brothers with no prior history of trauma or keloid occurrence in other family members. The lesions exhibited progressive growth over several years but responded to cycles of triamcinolone treatment. This case underscores an unusual spontaneous occurrence of keloids in the thoracic region of two siblings, highlighting the potential genetic predisposition in the aetiology of these lesions. Additionally, this instance reinforces the concept that keloids can develop spontaneously without any apparent trauma in the affected area.

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