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1.
J Plast Reconstr Aesthet Surg ; 93: 18-23, 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38608533

RESUMO

BACKGROUND: Treatment of scalp malignancies may include the need for craniectomy. The decision to perform cranioplasty is not straightforward and is frequently subjective. The purpose of this study was to assess the clinical outcomes after reconstruction of complex scalp and calvarial defects by comparing patients with and without cranioplasty. METHODS: Retrospective review of the clinical records of a consecutive series of patients who underwent scalp soft tissue reconstruction after craniectomy for malignancy or osteoradionecrosis between 2014 and 2022 at Royal Melbourne Hospital was conducted. Demographics, previous treatments, surgical details, and post-operative complications were assessed. Traumatic injuries and decompressive craniectomies were excluded. Minimum follow-up of 6 months. RESULTS: Thirty-seven patients were included in the study. Indications for surgery included skin malignancies, osteoradionecrosis, or both. There was one reconstructive failure (in the non-cranioplasty group). Infection and metalware exposure were common complications in patients who underwent cranioplasty (38.5%). No patient developed neurological symptoms subsequent to craniectomy. One patient needed revision surgery due to esthetic reasons (cranioplasty group). Transposition flaps were associated with more complications and revision procedures. CONCLUSION: Combined scalp and calvarial defects pose a difficult reconstructive challenge. Stable soft tissue coverage is more reliably achieved with free flap reconstruction. Cranioplasty is not always mandatory and should be reserved for cases with a very large bony defect or when the defect is located in a cosmetically sensitive area.

2.
Cancers (Basel) ; 16(7)2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38610956

RESUMO

A multidisciplinary approach to the management of tongue cancer is vital for achieving optimal patient outcomes. Nursing and allied health professionals play essential roles within the team. We developed symposia comprising a series of online lectures offering a detailed perspective on the role each discipline and consumer perspective has in the management of patients with tongue cancer. The topics, including epidemiology and prevention, diagnosis, treatment planning, surgery, adjuvant care, and the management of recurrent or metastatic disease, were thoroughly examined. The symposia highlighted the significance of fostering collaboration and continuous learning through a multidisciplinary approach. This initiative should be relevant to healthcare professionals, researchers, and policymakers striving to enhance patient outcomes in tongue cancer care through innovative collaboration.

4.
Plast Reconstr Surg ; 151(3): 629-633, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36409231

RESUMO

SUMMARY: Large or multiply recurrent oronasal fistulas following cleft palate repair present a challenging problem. Nasal septal mucoperichondrial flaps have been widely used for repair of skull base defects; however, their use in the repair of oronasal cleft palate fistulas has not previously been described. In this pilot study, the authors describe anterior palatal fistula repair using a nasal septal flap and review their experience with this technique over 4 years. Fourteen patients with anterior palatal fistulas not amenable to repair using local palatal flaps were included for analysis. The mean size of the fistula was 12 mm in maximum dimension. Flap healing with complete or near-complete closure of fistula was achieved in 13 patients (93%). Five of these patients had a small, slit-like residual fistula that was asymptomatic. Nasal septal flaps are a new technique for repair of large or recurrent palatal fistulas. The procedure is well-tolerated with minimal side effects, high success rate, and low incidence of recurrence. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Assuntos
Fissura Palatina , Fístula , Doenças Nasais , Humanos , Fissura Palatina/cirurgia , Projetos Piloto , Retalhos Cirúrgicos , Fístula Bucal/etiologia , Doenças Nasais/cirurgia , Septo Nasal
6.
Front Psychol ; 13: 894478, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35651560

RESUMO

Language sample analysis (LSA) is an important practice for providing a culturally sensitive and accurate assessment of a child's language abilities. A child's usage of literate language devices in narrative samples has been shown to be a critical target for evaluation. While automated scoring systems have begun to appear in the field, no such system exists for conducting progress-monitoring on literate language usage within narratives. The current study aimed to develop a hard-coded scoring system called the Literate Language Use in Narrative Assessment (LLUNA), to automatically evaluate six aspects of literate language in non-coded narrative transcripts. LLUNA was designed to individually score six literate language elements (e.g., coordinating and subordinating conjunctions, meta-linguistic and meta-cognitive verbs, adverbs, and elaborated noun phrases). The interrater reliability of LLUNA with an expert scorer, as well as its' reliability compared to certified undergraduate scorers was calculated using a quadratic weighted kappa (K qw ). Results indicated that LLUNA met strong levels of interrater reliability with an expert scorer on all six elements. LLUNA also surpassed the reliability levels of certified, but non-expert scorers on four of the six elements and came close to matching reliability levels on the remaining two. LLUNA shows promise as means for automating the scoring of literate language in LSA and narrative samples for the purpose of assessment and progress-monitoring.

7.
J Speech Lang Hear Res ; 64(9): 3533-3548, 2021 09 14.
Artigo em Inglês | MEDLINE | ID: mdl-34407387

RESUMO

Purpose This study examined the accuracy and potential clinical utility of two expedited transcription methods for narrative language samples elicited from school-age children (7;5-11;10 [years;months]) with developmental language disorder. Transcription methods included real-time transcription produced by speech-language pathologists (SLPs) and trained transcribers (TTs) as well as Google Cloud Speech automatic speech recognition. Method The accuracy of each transcription method was evaluated against a gold-standard reference corpus. Clinical utility was examined by determining the reliability of scores calculated from the transcripts produced by each method on several language sample analysis (LSA) measures. Participants included seven certified SLPs and seven TTs. Each participant was asked to produce a set of six transcripts in real time, out of a total 42 language samples. The same 42 samples were transcribed using Google Cloud Speech. Transcription accuracy was evaluated through word error rate. Reliability of LSA scores was determined using correlation analysis. Results Results indicated that Google Cloud Speech was significantly more accurate than real-time transcription in transcribing narrative samples and was not impacted by speech rate of the narrator. In contrast, SLP and TT transcription accuracy decreased as a function of increasing speech rate. LSA metrics generated from Google Cloud Speech transcripts were also more reliably calculated. Conclusions Automatic speech recognition showed greater accuracy and clinical utility as an expedited transcription method than real-time transcription. Though there is room for improvement in the accuracy of speech recognition for the purpose of clinical transcription, it produced highly reliable scores on several commonly used LSA metrics. Supplemental Material https://doi.org/10.23641/asha.15167355.


Assuntos
Percepção da Fala , Patologia da Fala e Linguagem , Criança , Humanos , Reprodutibilidade dos Testes , Instituições Acadêmicas , Fala , Patologia da Fala e Linguagem/educação
8.
Front Oncol ; 11: 796197, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35117997

RESUMO

BACKGROUND: Cutaneous squamous cell carcinoma (CSCC) of the head and neck can require complex and disfiguring surgery in order to achieve cure, which can be morbid and negatively impact patient quality of life. The management of advanced CSCC has been revolutionized by immunotherapy with current clinical trials also exploring its role in the neoadjuvant and adjuvant settings. Patients may decline morbid curative surgery, such as orbital exenteration, and the outcomes of immunotherapy use in this unique group of patients require further investigation. METHODS: We reviewed the records of 119 patients treated at a major Australian quaternary oncology centre with immunotherapy (either cemiplimab or pembrolizumab) for advanced CSCC. RESULTS: We identified 7 patients recommended curative surgery involving orbital exenteration after multidisciplinary discussion, who declined surgery due to concerns about morbidity and/or disfigurement. All 7 patients demonstrated a response to treatment, and six avoided orbital exenteration. Two patients experienced pseudoprogression. CONCLUSIONS: The management of CSCC can be complex and requires the input of a multidisciplinary team. Immunotherapy to avoid or reduce the extent of morbid definitive surgery is an emerging treatment option.

9.
Lang Speech Hear Serv Sch ; 51(3): 866-881, 2020 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-32525756

RESUMO

Purpose This systematic review synthesized a set of peer-reviewed studies published between 1985 and 2019 and addressed the effectiveness of existing narrative and expository discourse interventions for late elementary- and middle school-aged students with language-related learning disabilities. Method A methodical search of the literature for interventions targeting expository or narrative discourse structure for students aged 9-14 years with group experimental designs identified 33 studies, seven of which met specific criteria to be included in this review. Results An 8-point critical appraisal scale was applied to analyze the quality of the study design, and effect sizes were calculated for six of the seven studies; equivocal to small effects of far-transfer outcomes (i.e., generalizability to other settings) and equivocal to moderate near-transfer outcomes (i.e., within the treatment setting) were identified. The most effective intervention studies provided explicit instruction of expository texts with visual supports and student-generated learning materials (e.g., notes or graphic organizers) with moderate dosage (i.e., 180-300 min across 6-8 weeks) in a one-on-one or paired group setting. Greater intervention effects were also seen in children with reading and/or language disorders, compared to children with overall academic performance difficulties. Conclusions A number of expository discourse interventions showed promise for student use of learned skills within the treatment setting (i.e., near-transfer outcomes) but had limited generalization of skills (i.e., far-transfer outcomes). Supplemental Material https://doi.org/10.23641/asha.12449258.


Assuntos
Transtornos da Linguagem/reabilitação , Terapia da Linguagem/métodos , Deficiências da Aprendizagem/reabilitação , Desempenho Acadêmico , Adolescente , Criança , Humanos , Transtornos da Linguagem/complicações , Transtornos da Linguagem/psicologia , Deficiências da Aprendizagem/etiologia , Deficiências da Aprendizagem/psicologia , Narração , Resultado do Tratamento
10.
PLoS One ; 14(10): e0224634, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31671140

RESUMO

The accuracy of four machine learning methods in predicting narrative macrostructure scores was compared to scores obtained by human raters utilizing a criterion-referenced progress monitoring rubric. The machine learning methods that were explored covered methods that utilized hand-engineered features, as well as those that learn directly from the raw text. The predictive models were trained on a corpus of 414 narratives from a normative sample of school-aged children (5;0-9;11) who were given a standardized measure of narrative proficiency. Performance was measured using Quadratic Weighted Kappa, a metric of inter-rater reliability. The results indicated that one model, BERT, not only achieved significantly higher scoring accuracy than the other methods, but was consistent with scores obtained by human raters using a valid and reliable rubric. The findings from this study suggest that a machine learning method, specifically, BERT, shows promise as a way to automate the scoring of narrative macrostructure for potential use in clinical practice.


Assuntos
Avaliação Educacional/métodos , Reprodutibilidade dos Testes , Criança , Feminino , Humanos , Aprendizado de Máquina , Masculino , Narração , Variações Dependentes do Observador
11.
Endocrinology ; 160(1): 1-19, 2019 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-30535329

RESUMO

Approximately one-third of women experience hysterectomy, or the surgical removal of the uterus, by 60 years of age, with most surgeries occurring prior to the onset of natural menopause. The ovaries are retained in about half of these surgeries, whereas for the other half hysterectomy occurs concurrently with oophorectomy. The dogma is that the nonpregnant uterus is dormant. There have been no preclinical assessments of surgical variations in menopause, including hysterectomy, with and without ovarian conservation, on potential endocrine and cognitive changes. We present a novel rat model of hysterectomy alongside sham, ovariectomy (Ovx), and Ovx-hysterectomy groups to assess effects of surgical menopause variations. Rats without ovaries learned the working memory domain of a complex cognitive task faster than did those with ovaries. Moreover, uterus removal alone had a unique detrimental impact on the ability to handle a high-demand working memory load. The addition of Ovx, that is, Ovx-hysterectomy, prevented this hysterectomy-induced memory deficit. Performance did not differ amongst groups in reference memory-only tasks, suggesting that the working memory domain is particularly sensitive to variations in surgical menopause. Following uterus removal, ovarian histology and estrous cycle monitoring demonstrated that ovaries continued to function, and serum assays indicated altered ovarian hormone and gonadotropin profiles by 2 months after surgery. These results underscore the critical need to further study the contribution of the uterus to the female phenotype, including effects of hysterectomy with and without ovarian conservation, on the trajectory of brain and endocrine aging to decipher the impact of common variations in gynecological surgery in women. Moreover, findings demonstrate that the nonpregnant uterus is not dormant, and indicate that there is an ovarian-uterus-brain system that becomes interrupted when the reproductive tract has been disrupted, leading to alterations in brain functioning.


Assuntos
Histerectomia/efeitos adversos , Transtornos da Memória/etiologia , Transtornos da Memória/psicologia , Menopausa/psicologia , Útero/cirurgia , Animais , Cognição , Feminino , Hormônios Gonadais , Humanos , Transtornos da Memória/metabolismo , Ovariectomia/efeitos adversos , Ovário/metabolismo , Ovário/cirurgia , Ratos , Ratos Endogâmicos F344 , Memória Espacial , Útero/metabolismo
12.
Neurobiol Aging ; 64: 1-14, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29316527

RESUMO

Most estrogen-based hormone therapies are administered in combination with a progestogen, such as Levonorgestrel (Levo). Individually, the estrogen 17ß-estradiol (E2) and Levo can improve cognition in preclinical models. However, although these hormones are often given together clinically, the impact of the E2 + Levo combination on cognitive function has yet to be methodically examined. Thus, we investigated E2 + Levo treatment on a cognitive battery in middle-aged, ovariectomized rats. When administered alone, E2 and Levo treatments each enhanced spatial working memory relative to vehicle treatment, whereas the E2 + Levo combination impaired high working memory load performance relative to E2 only and Levo only treatments. There were no effects on spatial reference memory. Mitogen-activated protein kinases/extracellular signal-regulated kinases pathway activation, which is involved in memory formation and estrogen-induced memory effects, was evaluated in 5 brain regions implicated in learning and memory. A distinct relationship was seen in the E2-only treatment group between mitogen-activated protein kinases/extracellular signal-regulated kinases pathway activation in the frontal cortex and working memory performance. Collectively, the results indicate that the differential neurocognitive effects of combination versus sole treatments are vital considerations as we move forward as a field to develop novel, and to understand currently used, exogenous hormone regimens across the lifespan.


Assuntos
Envelhecimento/psicologia , Cognição/efeitos dos fármacos , Estradiol/administração & dosagem , Estradiol/farmacologia , Levanogestrel/administração & dosagem , Levanogestrel/farmacologia , Memória de Curto Prazo/efeitos dos fármacos , Nootrópicos , Ovariectomia , Envelhecimento/fisiologia , Animais , Encéfalo/efeitos dos fármacos , Cognição/fisiologia , Quimioterapia Combinada , Feminino , Lobo Frontal , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Aprendizagem em Labirinto/efeitos dos fármacos , Memória de Curto Prazo/fisiologia , Ratos Endogâmicos F344 , Memória Espacial/efeitos dos fármacos
13.
SLAS Discov ; 22(3): 298-308, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27872202

RESUMO

Malignant melanomas often arise from nevi, which result from initial oncogene-induced hyperproliferation of melanocytes that are maintained in a CDKN2A/p16-mediated senescent state. Thus, genes that can bypass this senescence barrier are likely to contribute to melanoma development. We have performed a gain-of-function screen of 17,030 lentivirally expressed human open reading frames (ORFs) in a melanoma cell line containing an inducible p16 construct to identify such genes. Genes known to bypass p16-induced senescence arrest, including the human papilloma virus 18 E7 gene ( HPV18E7), and genes such as the p16-binding CDK6 with expected functions, as well as panel of novel genes, were identified, including high-mobility group box (HMGB) proteins. A number of these were further validated in two other models of p16-induced senescence. Tissue immunohistochemistry demonstrated higher levels of CDK6 in primary melanomas compared with normal skin and nevi. Reduction of CDK6 levels drove melanoma cells expressing functional p16 into senescence, demonstrating its contribution to bypass senescence.


Assuntos
Pontos de Checagem do Ciclo Celular , Quinase 6 Dependente de Ciclina/genética , Inibidor p16 de Quinase Dependente de Ciclina/genética , Regulação Neoplásica da Expressão Gênica , Ensaios de Triagem em Larga Escala , Melanócitos/metabolismo , Linhagem Celular Tumoral , Senescência Celular , Quinase 6 Dependente de Ciclina/metabolismo , Inibidor p16 de Quinase Dependente de Ciclina/metabolismo , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Biblioteca Gênica , Vetores Genéticos/química , Vetores Genéticos/metabolismo , Genoma Humano , Células HEK293 , Proteínas HMGB/genética , Proteínas HMGB/metabolismo , Humanos , Lentivirus/genética , Lentivirus/metabolismo , Melanócitos/patologia , Melanoma/genética , Melanoma/metabolismo , Melanoma/patologia , Nevo/genética , Nevo/metabolismo , Nevo/patologia , Proteínas Oncogênicas Virais/genética , Proteínas Oncogênicas Virais/metabolismo , Fases de Leitura Aberta , Neoplasias Cutâneas/genética , Neoplasias Cutâneas/metabolismo , Neoplasias Cutâneas/patologia
14.
Pigment Cell Melanoma Res ; 29(4): 444-52, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27166757

RESUMO

Here we have carried out a multiparameter analysis using a panel of 28 immunohistochemical markers to identify markers of transformation from benign and dysplastic naevus to primary melanoma in three separate cohorts totalling 279 lesions. We have identified a set of eight markers that distinguish naevi from melanoma. None of markers or parameters assessed differentiated benign from dysplastic naevi. Indeed, the naevi clustered tightly in terms of their immunostaining patterns whereas primary melanomas showed more diverse staining patterns. A small subset of histopathologically benign lesions had elevated levels of multiple markers associated with melanoma, suggesting that these represent naevi with an increased potential for transformation to melanoma.


Assuntos
Biomarcadores/metabolismo , Transformação Celular Neoplásica/patologia , Melanoma/patologia , Nevo Pigmentado/patologia , Neoplasias Cutâneas/patologia , Transformação Celular Neoplásica/metabolismo , Humanos , Melanoma/metabolismo , Nevo Pigmentado/metabolismo , Prognóstico , Neoplasias Cutâneas/metabolismo , Análise Serial de Tecidos
16.
Pediatr Surg Int ; 31(7): 653-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25966985

RESUMO

BACKGROUND: Infantile haemangioma is a common benign tumour of infancy. Ulceration is the most common complication and is often painful and difficult to treat. Propranolol therapy is widely used to induce involution in rapidly growing or ulcerated lesions, or those in anatomically awkward locations. The ideal dressing regimen for these lesions would provide effective analgesia, act as a wound dressing, and aid involution of the primary lesion. To date, no ideal regimen has been established. Negative pressure wound therapy (NPWT) has been used in adult and paediatric populations to help improve wound healing in a variety of settings. It may provide a useful alternative to traditional dressing regimens in ulcerated infantile haemangioma. METHODS: Six consecutive patients with ulcerating infantile haemangioma presenting to the Royal Children's Hospital vascular anomalies clinic were included in the study. Each patient was treated with a combination of NPWT and propranolol. Outcomes including time to wound healing, perceived ease of dressing management, and analgesia were recorded. RESULTS: Complete wound healing was obtained in all cases. Patient outcomes in terms of analgesia, comfort, and ease of wound dressing were improved following application of NPWT. DISCUSSION/CONCLUSIONS: We propose that this regimen represents a novel therapy for management of ulcerated infantile haemangioma. Possible mechanisms for healing effect, and improved analgesia are discussed. Further investigation is required to determine if negative pressure wound therapy results in faster healing times compared to traditional dressing regimens.


Assuntos
Hemangioma Capilar/complicações , Hemangioma Capilar/terapia , Tratamento de Ferimentos com Pressão Negativa , Úlcera/complicações , Úlcera/terapia , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Resultado do Tratamento
17.
J Reconstr Microsurg ; 31(1): 59-66, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25083763

RESUMO

BACKGROUND: Management of soft tissue injuries of the heel is challenging and the composition of free tissue transfer that provides optimal aesthetic and functional outcomes in heel reconstruction is not clear. While fasciocutaneous flaps may result in shear planes that cause instability with mobilization, insensate muscle flaps may not be able to withstand the pressures of weight bearing and thus ulcerate. METHODS: A systematic literature search was performed using Medline and PubMed databases. Primary outcome measures were time to mobilize, ulceration, revision or debulking surgery, and the requirement for specialized footwear. Analysis of pooled outcomes was undertaken using fixed-effects meta-analysis, calculating the incidence rate ratio for included articles. RESULTS: Overall 576 articles were identified; out of which 11 articles met the final inclusion criteria, detailing 168 free tissue transfers in 163 patients. The study size ranged from 4 to 72 cases. There was a trend toward higher rates of ulceration (17 vs. 26%), requirement for revision (23 vs. 31%), and the requirement for specialized footwear (35 vs. 56%) in muscle flaps, but these differences were not statistically significant. CONCLUSION: The current review provided a summary of reported outcomes of free heel reconstruction in the literature till date. With the current evidence largely limited to small cohort studies (level IV evidence), there were no significant differences found between reconstructive options. These findings serve as a call to action for more reconstructive surgeons to collaborate on multi-institutional prospective studies with robust outcomes assessment. As such, an ideal flap for reconstruction of the weight-bearing heel has not yet been made clear.


Assuntos
Retalhos de Tecido Biológico/irrigação sanguínea , Calcanhar/cirurgia , Microcirurgia , Procedimentos de Cirurgia Plástica , Lesões dos Tecidos Moles/cirurgia , Seguimentos , Sobrevivência de Enxerto , Calcanhar/patologia , Humanos , Retalhos Cirúrgicos , Resultado do Tratamento , Suporte de Carga , Cicatrização
18.
J Invest Dermatol ; 134(1): 141-149, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23774529

RESUMO

A germline polymorphism of the microphthalmia transcription factor (MITF) gene encoding a SUMOylation-deficient E318K-mutated protein has recently been described as a medium-penetrance melanoma gene. In a clinical assessment of nevi from 301 volunteers taken from Queensland, we identified six individuals as MITF E318K mutation carriers. The phenotype for 5 of these individuals showed a commonality of fair skin, body freckling that varied over a wide range, and total nevus count between 46 and 430; in addition, all were multiple primary melanoma patients. The predominant dermoscopic signature pattern of nevi was reticular, and the frequency of globular nevi in carriers varied, which does not suggest that the MITF E318K mutation acts to force the continuous growth of nevi. Excised melanocytic lesions were available for four MITF E318K carrier patients and were compared with a matched range of wild-type (WT) melanocytic lesions. The MITF staining pattern showed a predominant nuclear signal in all sections, with no significant difference in the nuclear/cytoplasmic ratio between mutation-positive or -negative samples. A high incidence of amelanotic melanomas was found within the group, with three of the five melanomas from one patient suggesting a genetic interaction between the MITF E318K allele and an MC1R homozygous red hair color (RHC) variant genotype.


Assuntos
Melanoma/genética , Fator de Transcrição Associado à Microftalmia/genética , Nevo/genética , Neoplasias Cutâneas/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Predisposição Genética para Doença/epidemiologia , Predisposição Genética para Doença/genética , Cor de Cabelo/genética , Humanos , Masculino , Melanoma/epidemiologia , Pessoa de Meia-Idade , Nevo/epidemiologia , Fenótipo , Mutação Puntual , Polimorfismo Genético , Neoplasias Cutâneas/epidemiologia , Adulto Jovem
19.
Craniomaxillofac Trauma Reconstr ; 6(1): 61-4, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24436738

RESUMO

Free flap reconstruction of the head and neck is a widespread procedure. The aesthetic outcome is frequently compromised by color mismatch between the donor site skin and the complex pigmentation of the face. Various surgical procedures have been described to improve the appearance of external skin paddles. Medical tattooing is commonly used for nipple pigmentation in breast reconstruction and cosmetic procedures such as permanent makeup. This article describes the technique and its application to head and neck reconstruction. Medical tattooing can be used to improve the cosmetic appearance of head and neck free flaps. There is no donor site morbidity and subtle changes in color can be replicated. The article describes the technique of medical tattooing with the use of illustrative cases. Medical tattooing is a viable alternative for improving the appearance of cutaneous skin paddles following head and neck reconstruction with free flaps. Its advantages include no donor site morbidity, availability of an infinite range of colors, no requirement for general anesthesia, and the ability to use multiple colors in the one flap for complex pigmentation requirements. Its disadvantages include the need for specialized skills and equipment and the fading of color over time.

20.
Ann Plast Surg ; 71(5): 528-32, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23187710

RESUMO

BACKGROUND: Multiple variations of the musculocutaneous trapezius flap have been described, each of which use a single composite musculocutaneous unit in their designs. The limitation of such designs is the ability to use the components in a 3-dimensional manner, with only 1 vector existing in the geometry of the musculocutaneous unit. METHODS: A review of the literature was undertaken with regard to designs of the musculocutaneous trapezius flap, and we present a new technique for flap design. With identification of individual perforators to each of the muscle and fasciocutaneous portions of the trapezius flap, the 2 components can act in a chimeric fashion, able to fill both a deep and complex 3-dimensional space while covering the wound with robust skin. RESULTS: A range of flap designs have been described, including transverse, oblique, and vertical skin paddles accompanying the trapezius muscle. We describe a technique with which a propeller-style skin paddle based on a cutaneous perforator can be raised in any orientation with respect to the underlying muscle. In a presented case, separation of the muscular and fasciocutaneous components of the trapezius flap was able to obliterate dead space around exposed cervicothoracic spinal metalwork and obtain robust wound closure in a patient with previous radiotherapy. CONCLUSIONS: This concomitant use of a muscle and fasciocutaneous perforator flap based on a single perforator, a so-called chimeric perforator flap, is a useful modification to trapezius musculocutaneous flap design.


Assuntos
Retalho Miocutâneo , Procedimentos de Cirurgia Plástica/métodos , Músculos Superficiais do Dorso/transplante , Retalhos Cirúrgicos , Coleta de Tecidos e Órgãos/métodos , Sobrevivência de Enxerto , Humanos , Retalho Miocutâneo/irrigação sanguínea , Músculos Superficiais do Dorso/irrigação sanguínea
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