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1.
Burns ; 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38472005

RESUMO

INTRODUCTION: Enteral resuscitation (EResus) is operationally advantageous to intravenous resuscitation for burn-injured patients in some low-resource settings. However, there is minimal guidance and no training materials for EResus tailored to non-burn care providers. We aimed to develop and consumer-test a training flipbook with doctors and nurses in Nepal to aid broader dissemination of this life-saving technique. MATERIALS AND METHODS: We used individual cognitive interviews with Nepali (n = 12) and international (n = 4) burn care experts to define key elements of EResus and specific concepts for its operationalization at primary health centers and first-level hospitals in Nepal. Content, prototype illustrations, and wireframe layouts were developed and revised with the burn care experts. Subsequently, eight consumer testing focus groups with Nepali stakeholders (5-10 people each) were facilitated. Prompts were generated using the Questionnaire Appraisal System (QAS) framework. The flipbook was iteratively revised and tested based on consumer feedback organized according to the domains of clarity, assumptions, knowledge/memory, and sensitivity/bias. RESULTS AND DISCUSSION: The flipbook elements were iterated until consumers made no additional requests for changes. Examples of consumer inputs included: clarity-minimize medical jargon, add shrunken organs and wilted plants to represent burn shock; assumptions-use locally representative figures, depict oral rehydration salts sachet instead of a graduated bottle; knowledge/memory-clarify complex topics, use Rule-of-9 s and depict approximately 20% total body surface area to indicate the threshold for resuscitation; sensitivity/bias-reduce anatomic illustration details (e.g. urinary catheter placement, body contours). CONCLUSION: Stakeholder engagement, consumer testing, and iterative revision can generate knowledge translation products that reflect contextually appropriate education materials for inexperienced burn providers. The EResus Training Flipbook can be used in Nepal and adapted to other contexts to facilitate the implementation of EResus globally.

2.
Plast Reconstr Surg ; 146(3): 283e-291e, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32842101

RESUMO

BACKGROUND: As rhinoplasty techniques have evolved to more extensive dissections, the incidence of iatrogenic deformities, such as alar rim retraction, has risen. Its mechanism is presently unknown. This study examined the microscopic anatomy of the nasal ala to define architectural support elements at the histologic level to determine why rhinoplasty dissection creates such deformities. METHODS: Eight cadaveric noses were harvested and sectioned through the soft triangle and ala. Various tissue stains were performed. Slides were examined using light microscopy. Anatomical features pertaining to cartilage, skin, mucosa, elastic fibers, and muscle were documented. RESULTS: Four male and four female noses were sectioned. The median cadaver age was 64 years (range, 47 to 83 years). On Elastica van Gieson stain, distinct elastic fibers span from the vestibular lining to the caudal margin of the lower lateral cartilage, and from the caudal edge of the lower lateral cartilage to the external alar skin. In the nasal ala midsection, trichrome stains reveal that skeletal muscle is located far beyond the lower lateral cartilage, close to the free alar margin. The soft triangle shows a distinct microanatomical structure, with heavy longitudinal condensations of elastin. These histologic findings have not been previously reported. CONCLUSIONS: A distinct anatomical alar wall endoskeleton has been identified. It is obligatorily disrupted by specific rhinoplasty maneuvers when dissection is carried out over the lateral crura and into areas without cartilaginous support. This microanatomy may explain factors that contribute to postoperative alar wall retraction. Leaving this area undisturbed or performing adjunctive measures with rhinoplasty can provide structural support to the external valves, thus minimizing the risk of deformity.


Assuntos
Deformidades Adquiridas Nasais/etiologia , Nariz/anatomia & histologia , Complicações Pós-Operatórias/etiologia , Rinoplastia/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Cadáver , Feminino , Humanos , Doença Iatrogênica , Masculino , Pessoa de Meia-Idade
3.
J Burn Care Res ; 38(1): 36-44, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27654867

RESUMO

The US National Bioterrorism Hospital Preparedness Program indicates that each care facility must have "a plan to care for at least 50 cases per million people for patients suffering burns or trauma" to receive national funding disaster preparedness. The purpose of this study is to evaluate whether this directive is commensurate with the severity recent burn disasters, both nationally and internationally. We conducted a review of medical journal articles, investigative fire reports, and media news sources for major burn disasters dating from 1990 to present day. We defined a major burn disaster as any incident with ≥50 burn injuries and/or ≥ 30 burn-related deaths. We compared existing preparedness guidelines with the magnitude of recent burn disasters using as reference the 2005 U.S. Health and Human Services directive that each locale must "have a plan to care for at least 50 cases per million people for patients suffering burns or trauma." We reported the number of actual casualties for each incident, and estimated the number of burn beds theoretically available if the "50 [burn-injury] cases per million people" directive were to be applied to metropolitan areas outside the United States. Seven hundred fifty-two burn disaster incidents met our inclusion criteria. The majority of burn disasters occurred in Asia/Middle East. The incidence of major burn disasters from structural fires and industrial blasts remains constant in high-income and resource-restricted countries during this study period. The incidence of terrorist attacks increased 20-fold from 2001 to 2015 compared with 1990 to 2000. Recent incidents demonstrate that if current preparedness guidelines were to be adopted internationally, local resources including burn-bed availability would be insufficient to care for the total number of burn casualties. These findings underscore an urgent need to organize better regional, national, and international collaboration in burn disaster response.


Assuntos
Queimaduras/epidemiologia , Planejamento em Desastres , Guias como Assunto , Humanos
4.
Pediatr Dermatol ; 33(3): e228-9, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27046537

RESUMO

Xeroderma pigmentosum (XP) is a rare, autosomal recessive disease involving a defect in DNA repair leading to the premature development of numerous aggressive cutaneous malignancies. Although atypical fibroxanthoma (AFX) is a neoplasm typically found in the setting of extensive sun exposure or therapeutic radiation, AFXs are rarely associated with children with XP. We report the case of a 13-year-old Guatemalan girl with the XP type C variant who developed one of the largest AFXs reported on a child's finger.


Assuntos
Dedos/cirurgia , Lesões Pré-Cancerosas/patologia , Neoplasias Cutâneas/patologia , Xantogranuloma Juvenil/patologia , Xeroderma Pigmentoso/patologia , Adolescente , Amputação Cirúrgica/métodos , Biópsia por Agulha , Feminino , Dedos/patologia , Guatemala , Humanos , Imuno-Histoquímica , Doenças Raras , Medição de Risco , Neoplasias Cutâneas/complicações , Neoplasias Cutâneas/cirurgia , Resultado do Tratamento , Xantogranuloma Juvenil/complicações , Xantogranuloma Juvenil/cirurgia , Xeroderma Pigmentoso/complicações , Xeroderma Pigmentoso/cirurgia
5.
Cell Rep ; 9(4): 1228-34, 2014 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-25456125

RESUMO

Somatic mutations in cancer are more frequent in heterochromatic and late-replicating regions of the genome. We report that regional disparities in mutation density are virtually abolished within transcriptionally silent genomic regions of cutaneous squamous cell carcinomas (cSCCs) arising in an XPC(-/-) background. XPC(-/-) cells lack global genome nucleotide excision repair (GG-NER), thus establishing differential access of DNA repair machinery within chromatin-rich regions of the genome as the primary cause for the regional disparity. Strikingly, we find that increasing levels of transcription reduce mutation prevalence on both strands of gene bodies embedded within H3K9me3-dense regions, and only to those levels observed in H3K9me3-sparse regions, also in an XPC-dependent manner. Therefore, transcription appears to reduce mutation prevalence specifically by relieving the constraints imposed by chromatin structure on DNA repair. We model this relationship among transcription, chromatin state, and DNA repair, revealing a new, personalized determinant of cancer risk.


Assuntos
Carcinoma de Células Escamosas/genética , Reparo do DNA/genética , Genoma Humano/genética , Heterocromatina/genética , Taxa de Mutação , Neoplasias Cutâneas/genética , Transcrição Gênica , Empacotamento do DNA/genética , Proteínas de Ligação a DNA/deficiência , Proteínas de Ligação a DNA/genética , Regulação Neoplásica da Expressão Gênica , Células Germinativas/metabolismo , Humanos , Proteínas Proto-Oncogênicas/genética
6.
Ann Plast Surg ; 66(5): 457-9, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21451366

RESUMO

Frontal sinus fractures have traditionally been repaired through a bicoronal approach. This incision provides a wide exposure, but is not without complications, particularly in the patient with or at risk for hairline recession. We present a series of 15 patients who underwent open reduction and internal fixation of anterior table frontal sinus fractures through a frontalis rhytid forehead incision and their results based on the scar appearance, forehead contour, frontalis function, sensation and fracture reduction. Paresthesias cranial to the incision in the supraorbital or supratrochlear distribution were noted in 12 of the 15 patients with resolution in all except 1 patient who did not regain sensation at 4 months follow-up. In all patients, satisfactory forehead contour and fracture reduction were achieved, as were scar appearance and frontalis function at 4 months follow-up. We thus recommend this approach in the treatment of anterior table frontal sinus fractures, with special consideration for the patient with or at risk for anterior hairline recession.


Assuntos
Ossos Faciais/lesões , Fixação Interna de Fraturas/métodos , Seio Frontal/cirurgia , Fraturas Cranianas/cirurgia , Adolescente , Adulto , Estética , Testa/cirurgia , Consolidação da Fratura/fisiologia , Seio Frontal/diagnóstico por imagem , Seio Frontal/lesões , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Estudos Retrospectivos , Medição de Risco , Estudos de Amostragem , Fraturas Cranianas/diagnóstico por imagem , Resultado do Tratamento , Adulto Jovem
7.
Ann Plast Surg ; 64(5): 645-8, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20395802

RESUMO

The paramedian forehead flap has become the standard of care for major nasal reconstruction. The classic procedure involves a second-stage operation to divide and inset the external pedicle. We present our experience in a clinical series using single-stage forehead flap reconstruction. Our indications include elderly patients, pediatric patients treated during mission trips, and any patient in whom an external pedicle or two-stage procedure is problematic. From 2008 to 2009, 9 patients underwent a single-stage forehead flap. The majority had defects after excision of skin cancer. Our modification involves removal of radix and proximal nasal skin and fat and deepithelialization of the proximal pedicle to allow inset without excess compression or kinking. This modification avoids the sequelae of an external pedicle, which include bleeding, dressings, the inability to wear eyeglasses, and the patient's reluctance to appear in public. It safely provides acceptable results and avoids a mandatory secondary procedure.


Assuntos
Testa/cirurgia , Rinoplastia/métodos , Retalhos Cirúrgicos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Cartilagem da Orelha/transplante , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Nasais/cirurgia , Estudos Retrospectivos , Rinofima/cirurgia , Resultado do Tratamento , Xeroderma Pigmentoso/cirurgia
8.
J Pediatr Surg ; 44(12): e23-6, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20006000

RESUMO

Negative pressure wound therapy (NPWT) is described as it is used in the treatment of an infant burn victim. This case highlights the ability and techniques used to maintain an airtight dressing seal in the perirectal region. Use of this dressing type post-skin grafting allowed for 100% graft adhesion and no bacterial contamination despite close proximity to the rectum. Favorable experience and outcome with this patient are strong indicators that NPWT should be considered as a viable treatment in pediatric populations and that situations where body contour or fluids may make NPWT difficult to administer should not be a deterrent to therapy.


Assuntos
Queimaduras/terapia , Tratamento de Ferimentos com Pressão Negativa/métodos , Infecções Bacterianas/prevenção & controle , Bandagens/estatística & dados numéricos , Queimaduras/patologia , Queimaduras/cirurgia , Nádegas/patologia , Terapia Combinada , Feminino , Sobrevivência de Enxerto , Humanos , Lactente , Curativos Oclusivos/estatística & dados numéricos , Poliuretanos , Transplante de Pele/métodos , Sucção/métodos , Resultado do Tratamento , Cicatrização
9.
Ann Plast Surg ; 63(4): 389-92, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19770701

RESUMO

The authors present a case of free vascularized transfer of the tibial bone as an osteomyocutaneous flap based on the posterior tibial vessels. A 42-year-old man presented with severe crush injury to bilateral legs. The left tibial bone and soft tissue defect required reconstruction with an osteomyocutaneous free flap. Since the contralateral leg was traumatically amputated at the level of the ankle, a decision was made to harvest a free tibial osteomyocutaneous flap with below-knee-amputation completed. The transfer was achieved successfully with complete survival of the flap and bony union. This report describes the technical and healing aspects of such a unique transfer which may rarely be indicated.


Assuntos
Amputação Traumática/cirurgia , Microcirurgia/métodos , Terapia de Salvação , Retalhos Cirúrgicos/irrigação sanguínea , Tíbia/transplante , Acidentes de Trânsito , Adulto , Tornozelo/cirurgia , Transplante Ósseo/métodos , Seguimentos , Sobrevivência de Enxerto , Humanos , Escala de Gravidade do Ferimento , Traumatismos da Perna/patologia , Traumatismos da Perna/cirurgia , Extremidade Inferior/lesões , Masculino , Procedimentos de Cirurgia Plástica/métodos , Fluxo Sanguíneo Regional , Tíbia/irrigação sanguínea , Tíbia/cirurgia , Coleta de Tecidos e Órgãos , Resultado do Tratamento
10.
Ann Plast Surg ; 61(5): 559-65, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18948787

RESUMO

Severe neck contractures after burns cause gross facial deformity and severe functional disability. Reconstruction of these deformities is challenging. Goals of reconstruction are to obtain full range of neck movements and to restore the aesthetic appearance to the face and neck. Several methods have been described. Although all of them focus on achieving full extension and resurfacing of the neck, they often fail to restore an aesthetic contour to the neck especially in lateral profile. We present our method based on the treatment of 96 patients, with severe neck contractures operated between September 2000 and October 2005. We have successfully achieved full unlimited range of neck movements and restored a natural pleasing contour of the neck both in anterior and lateral profile. There has been no recontracture at the follow-up of 1 year.


Assuntos
Queimaduras/cirurgia , Contratura/cirurgia , Estética , Músculos do Pescoço/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Adulto , Feminino , Humanos , Masculino , Índice de Gravidade de Doença , Transplante de Pele , Transplante Autólogo
11.
Aesthet Surg J ; 27(1): 65-7, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-19341631

RESUMO

Many techniques have been described to correct breast hypoplasia and asymmetry associated with Poland's syndrome. Some patients are not interested in permanent implants. Others are not suitable candidates for implants because of severe muscle and soft tissue deficiencies. In this case study, a two-stage procedure without permanent implants to address all the anomalies of Poland's breast deformity is presented. The first stage involved tissue expansion; in the second stage, the expander was replaced with a deepithelialized transverse rectus abdominis myocutaneous flap. The breast and chest wall reconstruction were accomplished through a hemiareolar incision.

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