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1.
Int Wound J ; 17(1): 174-186, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31667978

RESUMO

The use of negative pressure wound therapy with instillation and dwell time (NPWTi-d) has gained wider adoption and interest due in part to the increasing complexity of wounds and patient conditions. Best practices for the use of NPWTi-d have shifted in recent years based on a growing body of evidence and expanded worldwide experience with the technology. To better guide the use of NPWTi-d with all dressing and setting configurations, as well as solutions, there is a need to publish updated international consensus guidelines, which were last produced over 6 years ago. An international, multidisciplinary expert panel of clinicians was convened on 22 to 23 February 2019, to assist in developing current recommendations for best practices of the use of NPWTi-d. Principal aims of the meeting were to update recommendations based on panel members' experience and published results regarding topics such as appropriate application settings, topical wound solution selection, and wound and patient characteristics for the use of NPWTi-d with various dressing types. The final consensus recommendations were derived based on greater than 80% agreement among the panellists. The guidelines in this publication represent further refinement of the recommended parameters originally established for the use of NPWTi-d. The authors thank Karen Beach and Ricardo Martinez for their assistance with manuscript preparation.


Assuntos
Consenso , Tratamento de Ferimentos com Pressão Negativa/normas , Guias de Prática Clínica como Assunto , Irrigação Terapêutica/normas , Cicatrização , Infecção dos Ferimentos/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
2.
Ann Plast Surg ; 80(3): 297-307, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29309331

RESUMO

Treatment of hypertrophic scars and other fibrotic skin conditions with autologous fat injections shows promising clinical results; however, the underlying mechanisms of its antifibrotic action have not been comprehensively studied. Adipose-derived stem cells, or stromal cell-derived factors, inherent components of the transplanted fat tissue, seem to be responsible for its therapeutic effects on difficult scars. The mechanisms by which this therapeutic effect takes place are diverse and are mostly mediated by paracrine signaling, which switches on various antifibrotic molecular pathways, modulates the activity of the central profibrotic transforming growth factor ß/Smad pathway, and normalizes functioning of fibroblasts and keratinocytes in the recipient site. Direct cell-to-cell communications and differentiation of cell types may also play a positive role in scar treatment, even though they have not been extensively studied in this context. A more thorough understanding of the fat tissue antifibrotic mechanisms of action will turn this treatment from an anecdotal remedy to a more controlled, timely administered technology.


Assuntos
Tecido Adiposo/citologia , Cicatriz Hipertrófica/terapia , Transplante de Células-Tronco , Diferenciação Celular , Humanos , Fator de Crescimento Transformador beta/metabolismo , Cicatrização
3.
Aesthetic Plast Surg ; 42(4): 1071-1084, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29717338

RESUMO

BACKGROUND: Rhinoplasty is a popular aesthetic and reconstructive surgical procedure. It is one of the top five surgical cosmetic procedures performed worldwide. OBJECTIVES: To evaluate global trends in rhinoplasty research spanning 20 years between 1994 and 2013. METHODS: The top 15 plastic surgery and otolaryngology journals containing rhinoplasty research were determined using impact factors (IF). A database of rhinoplasty articles from 1994 to 2013 was created to include the following classifications: IF, authors' geographic location, study design, level of evidence (LOE), and pertinence to aesthetic or reconstructive rhinoplasty. Productivity index and productivity share were calculated for each region. RESULTS: A total of 1244 rhinoplasty articles were included in the database. The mean IF among the 15 journals increased from 0.75 in 1994 to 1.90 in 2013 (p < 0.001). The majority of rhinoplasty publications were clinical in study design (91.0%) and were predominantly of weaker LOE (level IV: 42.4%; level V: 33.2%). The USA led in proportion of total rhinoplasty publications by volume and productivity index (37.9%, 41.2%), followed by Asia (29.1%, 28.2%) and Western Europe (18.8%, 18.2%). The majority of articles published were classified as aesthetic (60.4%), whereas 30.6% were reconstructive; there was a significant increase in the proportion of aesthetic rhinoplasty articles published per year (p = 0.009). CONCLUSIONS: The USA has consistently been the most productive country in rhinoplasty research. However, its lead has diminished over the last 20 years. The trend in rhinoplasty research appears to be toward aesthetic rather than reconstructive topics. Attention should be given to producing stronger LOE studies. LEVEL OF EVIDENCE III: 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
Bibliometria , Pesquisa Biomédica/tendências , Editoração/estatística & dados numéricos , Rinoplastia , Humanos , Publicações Periódicas como Assunto , Fatores de Tempo
4.
Int Wound J ; 14(1): 198-202, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27212250

RESUMO

Current embodiments of negative pressure wound therapy (NPWT) create a hermetically sealed chamber at the surface of the body using polyurethane foam connected to a vacuum pump, which is then covered by a flexible adhesive drape. Commercially available NPWT systems routinely use flexible polyethylene films that have a sticky side, coated with the same acrylate adhesives used in other medical devices such as ECG leads and grounding pads. Severe reactions to the acrylate adhesives in these other devices, although uncommon, have been reported. We describe the case of a 63-year-old woman with an intractable leg ulcer resulting from external-beam radiotherapy (XRT). Treatment with a standard commercial NPWT system induced severe inflammation of the skin in direct contact with drape adhesive. We successfully administered prolonged, outpatient NPWT to the patient using an alternative method (first described by Bagautdinov in 1986), using plain polyethylene film and petrolatum. The necessary hermetic seal is achieved by smearing the skin with petrolatum before applying the polyethylene film and activating the vacuum pump. The Bagautdinov method is a practical solution to the problem of adapting NPWT to patients with contact sensitivity or skin tears related to the adhesive compounds in the flexible drapes. Its use of a circumferential elastic wrap to maintain constant pressure on the seal probably limits the Bagautdinov technique to the extremities.


Assuntos
Acrilatos/efeitos adversos , Adesivos/efeitos adversos , Bandagens/efeitos adversos , Hipersensibilidade , Inflamação/etiologia , Tratamento de Ferimentos com Pressão Negativa/métodos , Vaselina/uso terapêutico , Feminino , Humanos , Inflamação/terapia , Úlcera da Perna/terapia , Pessoa de Meia-Idade , Resultado do Tratamento , Cicatrização
5.
Int Wound J ; 14(4): 649-657, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27681204

RESUMO

Since its introduction 20 years ago for the treatment of chronic wounds, negative pressure wound therapy use has expanded to a variety of other wound types. Various mechanisms of action for its efficacy in wound healing have been postulated, but no unifying theory exists. Proposed mechanisms include induction of perfusion changes, microdeformation, macrodeformation, exudate control and decreasing the bacterial load in the wound. We surmise that these different mechanisms have varying levels of dominance in each wound type. Specifically, negative pressure wound therapy is beneficial to acute open wounds because it induces perfusion changes and formation of granulation tissue. Post-surgical incisional wounds are positively affected by perfusion changes and exudate control. In the context of chronic wounds, negative pressure wound therapy removes harmful and corrosive substances within the wounds to affect healing. When skin grafts and dermal substitutes are used to close a wound, negative pressure wound therapy is effective in promoting granulation tissue formation, controlling exudate and decreasing the bacterial load in the wound. In this review, we elucidate some of the mechanisms behind the positive wound healing effects of negative pressure wound therapy, providing possible explanations for these effects in different wound types.


Assuntos
Doença Crônica/terapia , Tratamento de Ferimentos com Pressão Negativa/métodos , Cicatrização/fisiologia , Ferimentos e Lesões/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
6.
Wound Repair Regen ; 24(3): 466-77, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27027596

RESUMO

Scarring following burn injury and its accompanying aesthetic and functional sequelae still pose major challenges. Hypertrophic scarring (HTS) can greatly impact patients' quality of life related to appearance, pain, pruritus and even loss of function of the injured body region. The identification of molecular events occurring in the evolution of the burn scar has increased our knowledge; however, this information has not yet translated into effective treatment modalities. Although many of the pathophysiologic pathways that bring about exaggerated scarring have been identified, certain nuances in burn scar formation are starting to be recognized. These include the effects of neurogenic inflammation, mechanotransduction, and the unique interactions of burn wound fluid with fat tissue in the deeper dermal layers, all of which may influence scarring outcome. Tension on the healing scar, pruritus, and pain all induce signaling pathways that ultimately result in increased collagen formation and myofibroblast phenotypic changes. Exposure of the fat domes in the deep dermis is associated with increased HTS, possibly on the basis of altered interaction of adipose-derived stem cells and the deep burn exudate. These pathophysiologic patterns related to stem cell-cytokine interactions, mechanotransduction, and neurogenic inflammation can provide new avenues of exploration for possible therapeutic interventions.


Assuntos
Queimaduras/fisiopatologia , Cicatriz Hipertrófica/patologia , Prurido/fisiopatologia , Cicatrização/fisiologia , Queimaduras/complicações , Queimaduras/terapia , Cicatriz Hipertrófica/prevenção & controle , Bandagens Compressivas , Humanos , Mecanotransdução Celular/fisiologia , Qualidade de Vida , Transplante de Células-Tronco
7.
Ann Plast Surg ; 77(6): 630-634, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26808759

RESUMO

BACKGROUND: Tamoxifen is an important adjunct therapy in breast cancer treatment; however, it has been implicated in increasing microvascular flap complications. Current recommendations on stopping tamoxifen are conflicting and do not address tamoxifen therapy that is continued perioperatively. The purpose of this study is to determine whether tamoxifen taken at the time of free transverse rectus abdominis myocutaneous (TRAM) and deep inferior epigastric perforator (DIEP) flap breast reconstruction affects thrombotic complication rates. METHODS: A retrospective review of microvascular breast reconstruction with TRAM/DIEP flaps over the last 20 years was carried out at a single institution. Patients were divided into 2 cohorts: those receiving tamoxifen at the time of reconstruction (tamoxifen cohort) and those not taking tamoxifen (control). Demographic information, procedural characteristics, and rates of microvascular flap complications were compared. RESULTS: Forty-three patients (56 flaps) received tamoxifen at the time of microvascular breast reconstruction, and 185 patients (267 flaps) did not. Patients in the tamoxifen cohort had a lower mean age of 48.9 years (P = 0.013). A greater percentage of patients in the tamoxifen cohort had preoperative radiation (P < 0.0001) and chemotherapy (P = 0.018) and underwent delayed reconstruction (P < 0.0001). There were no significant differences between the 2 cohorts with regard to flap complications including both arterial and venous thrombosis, flap failure, and other local flap complications. CONCLUSIONS: Patients receiving tamoxifen during TRAM/DIEP flap breast reconstruction did not have increased rates of flap thrombosis or failure; therefore, stopping tamoxifen prior to these procedures may not be necessary.


Assuntos
Antineoplásicos Hormonais/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Retalhos de Tecido Biológico/transplante , Mamoplastia/métodos , Complicações Pós-Operatórias/induzido quimicamente , Tamoxifeno/efeitos adversos , Trombose/induzido quimicamente , Adulto , Idoso , Antineoplásicos Hormonais/uso terapêutico , Neoplasias da Mama/cirurgia , Quimioterapia Adjuvante , Artérias Epigástricas/transplante , Feminino , Seguimentos , Retalhos de Tecido Biológico/irrigação sanguínea , Humanos , Mastectomia , Pessoa de Meia-Idade , Retalho Miocutâneo/irrigação sanguínea , Retalho Miocutâneo/transplante , Retalho Perfurante/irrigação sanguínea , Retalho Perfurante/transplante , Reto do Abdome/irrigação sanguínea , Reto do Abdome/transplante , Estudos Retrospectivos , Tamoxifeno/uso terapêutico , Trombose/etiologia , Resultado do Tratamento
8.
J Reconstr Microsurg ; 32(4): 276-84, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26645157

RESUMO

Introduction Microsurgical reconstruction of the breast represents an area of continual evolution, as new autologous flaps are introduced and principles are refined. This progression can be demonstrated by bibliometric analysis of the scientific literature. Methods The top 10 plastic surgery journals were determined by impact factor (IF). Each issue of every journal from 1993 to 2013 was accessed directly, and all articles discussing microsurgery on the female breast were classified by authors' geographic location, study design, and level of evidence (LOE, I-V). The productivity index and productivity share of each geographic region was calculated based on number of articles published and IF. Results A total of 706 breast microsurgery articles were analyzed. There was a significant increase in microsurgical breast research (p < 0.01), with an average 33.6 ± 31.1 articles per year and a mean increase of 4.4 articles per year. Most research was of lower LOE, with level I constituting 0.14% and level II constituting 5.21% of all articles. United States contributed the most research with 336.4 articles, followed by Western Europe with 242.2. However, Western Europe experienced the greatest increase in productivity share, with + 0.50 ± 0.29 growth, while United States demonstrated the greatest decrease in productivity share with - 1.23 ± 0.31 growth. Among autologous flaps, transverse rectus abdominis muscle research had the greatest yearly publication volume until 2002, when overtaken by deep inferior epigastric perforator flap research. Conclusion Over the 21-year study period, the United States not only contributed the greatest volume of research on female breast microsurgery but also demonstrated the greatest decline in research productivity. Efforts should be made to increase the LOE in breast microsurgery research.


Assuntos
Mamoplastia/métodos , Mamoplastia/tendências , Microcirurgia , Cirurgia Plástica , Bibliometria , Feminino , Humanos , Fator de Impacto de Revistas , Microcirurgia/tendências , Cirurgia Plástica/tendências , Retalhos Cirúrgicos
9.
Aesthet Surg J ; 36(3): 349-57, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26333991

RESUMO

Fat grafting is commonly employed by plastic and reconstructive surgeons to address contour abnormalities and soft-tissue defects; however, because retention rates and thus volume filling effects are unpredictable, there is a search for new and innovative approaches. Initial studies on the use of human decellularized adipose tissue extracellular matrix (hDAM) show promise for its use not only in tissue engineering, but also in fat grafting. In this review, we examine and analyze the literature for the preparation, characterization, and use of hDAM and its derivatives in tissue engineering and plastic surgery applications. All studies reviewed involve physical, chemical, and/or biological treatment stages for the preparation of hDAM; however a distinction should be made between detergent and nondetergent-based processing, the latter of which appears to preserve the native integrity of the hDAM while most-efficiently achieving complete decellularization. Methods of hDAM characterization vary among groups and included simple and immunohistochemical staining, biochemical assays, 3-dimensional (3D) imaging, and mechano-stress testing, all of which are necessary to achieve a comprehensive description of this novel tissue. Finally, we examine the various preclinical models utilized to optimize hDAM performance, which primarily include the addition of adipose-derived stem cells or cross-linking agents. Overall, hDAM appears to be a promising adjunct in fat-grafting applications or even possibly as a stand-alone soft-tissue filler with off-the-shelf potential for commercial applications.


Assuntos
Tecido Adiposo/transplante , Técnicas Cosméticas , Matriz Extracelular/transplante , Procedimentos de Cirurgia Plástica/métodos , Coleta de Tecidos e Órgãos/métodos , Técnicas Cosméticas/efeitos adversos , Humanos , Complicações Pós-Operatórias/etiologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Coleta de Tecidos e Órgãos/efeitos adversos , Transplante Autólogo , Resultado do Tratamento
10.
Ann Plast Surg ; 74(3): 376-82, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25643185

RESUMO

Although lipotransfer, or fat grafting, is a commonly used procedure in aesthetic and reconstructive surgery, there is still variability in graft survival and neoadipogenesis from one procedure to the next. A better understanding of the sequential molecular events occurring with grafting would allow us to strategize methods to improve the regenerative potency of the grafted tissue. These steps begin with an autophagic process, followed by the inclusion of stromal vascular fraction and matrix components. By tailoring and modifying each of these steps for a particular type of aesthetic or reconstructive procedure, strategic sequencing represents a dynamic approach to lipotransfer with the aim of maximizing adipocyte viability and growth. In the implementation of the strategic sequence, it remains important to consider the clinical viability of each step and its compliance with the US Food and Drug Administration regulations. This review highlights the basic science behind clinically translatable approaches to supplementing various fat grafting procedures.


Assuntos
Adipócitos/transplante , Tecido Adiposo/transplante , Sobrevivência de Enxerto , Procedimentos de Cirurgia Plástica/métodos , Adipócitos/fisiologia , Tecido Adiposo/fisiologia , Autofagia , Técnicas Cosméticas , Humanos , Transplante de Células-Tronco , Alicerces Teciduais , Transplante Autólogo/métodos
11.
Ann Plast Surg ; 72(1): 30-3, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24317244

RESUMO

BACKGROUND: Venous thromboembolism (VTE) can be a significant cause of morbidity and mortality in autologous breast reconstruction surgery. The aim of this study was to evaluate the effect of patient characteristics, comorbidities, payer type, reconstruction type, reconstruction timing, radiation, chemotherapy, and teaching status of hospital on VTE (deep venous thrombosis and/or pulmonary embolism) in autologous breast reconstructive surgery. METHODS: Using the Nationwide Inpatient Sample (NIS) database, we examined the clinical data of patients who underwent autologous breast reconstructive surgery in 2009 to 2010 in the United States. Univariate and multivariate regression analyses were performed to identify factors predictive of in-hospital VTE. RESULTS: A total of 35,883 patients underwent autologous breast reconstructive surgery during this period. Overall rate of VTE was 0.13%. The highest rate of VTE (0.26%) was observed in pedicled transverse rectus abdominis myocutaneous flap. Patients who experienced VTE had significantly longer mean hospital stay (11.6 vs 3.9 days; P < 0.001) and higher mean total hospital charges ($146,432 vs $61,794; P < 0.001) compared with non-VTE patients; however, there was no significant difference observed in mortality rate (VTE, 0.0% vs non-VTE, 0.04%; P = 0.886). Using multivariate regression analysis, immediate reconstruction after mastectomy (adjusted odds ratio [AOR], 5.4), older than 65 years (AOR, 4.2), obesity (AOR, 3.7), history of chemotherapy (AOR, 3.5), and chronic lung disease (AOR, 2.5) were associated with higher risk of VTE. There was no association between race, payer type, diabetes, hypertension, liver disease, congestive heart failure, peripheral vascular disease, chronic kidney disease, smoking, reconstruction type, radiation, or teaching status of hospital on VTE. CONCLUSIONS: In patients undergoing autologous breast reconstruction surgery, immediate reconstruction, older than 65 years, obesity, history of chemotherapy, and chronic lung disease are all independent predictors of higher VTE. Surgeons should consider these factors and use appropriate prophylaxis to minimize the risk of VTE development.


Assuntos
Mamoplastia , Complicações Pós-Operatórias/etiologia , Embolia Pulmonar/etiologia , Tromboembolia Venosa/etiologia , Trombose Venosa/etiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Feminino , Humanos , Mamoplastia/métodos , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Análise de Regressão , Estudos Retrospectivos , Fatores de Risco , Retalhos Cirúrgicos , Transplante Autólogo
12.
Microsurgery ; 34(8): 589-94, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24665051

RESUMO

Vascular thrombosis is one of the major postoperative complications of free flap microvascular breast reconstruction operations. It is associated with higher morbidity, higher cost, increased length of hospital stay, and potentially flap loss. Our purpose is to evaluate the rate of this complication and whether patient characteristics play a role. Using the Nationwide Inpatient Sample (NIS) database, we examined the clinical data of patients who underwent free flap breast reconstruction between 2009 and 2010 in the United States. Multivariate and univariate regression analyses were performed to identify independent risk factors of flap thrombosis. A total of 15,211 patients underwent free flap breast reconstruction surgery (immediate reconstruction: 43%). The most common flap was the free deep inferior epigastric perforator (DIEP) flap (53.6%), followed by free transverse rectus abdominis myocutaneous (TRAM) flap (43.1%), free superficial inferior epigastric artery (SIEA) flap (2%), and free gluteal artery perforator (GAP) flap (1.3%). The overall rate of flap thrombosis was 2.4 %, with the highest rate seen in the SIEA group (11.4%) and the lowest in the TRAM group (1.7%). Peripheral vascular disease (adjusted odds ration [AOR] 10.61), SIEA flap (AOR, 4.76) and delayed reconstruction (AOR, 1.42) were found to be statistically significant risk factors for flap thrombosis. Other comorbidities were not linked. While the overall rate of flap thrombosis in free flap breast reconstruction was relatively low (2.4%), Plastic Surgeons should be aware that patients with peripheral vascular disease and those undergoing free SIEA flap are at higher risk of flap thrombosis and they should closely monitor flaps to increase the chance for early salvage.


Assuntos
Doenças Mamárias/cirurgia , Mamoplastia/efeitos adversos , Retalhos Cirúrgicos/efeitos adversos , Retalhos Cirúrgicos/irrigação sanguínea , Trombose/epidemiologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Doenças Mamárias/complicações , Doenças Mamárias/patologia , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Mamoplastia/estatística & dados numéricos , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Retalhos Cirúrgicos/estatística & dados numéricos , Fatores de Tempo , Estados Unidos , Adulto Jovem
13.
Int Wound J ; 11(2): 169-76, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22905755

RESUMO

Due to similarities in skin characteristics, the authors hypothesise that a pig model would most accurately show the ability of autologous, enhanced cryoprecipitate (eCryo) to improve the wound healing of split-thickness skin grafts (STSGs) and corresponding donor sites. Fifty-two STSGs (5 × 5 cm) were fashioned and treated according to a randomised protocol with an autologous eCryo-treated and a control group. Macroscopic assessment, histological evaluation and cellular composition were completed at days 7, 14, 21 and 28. Thirty-two donor sites were also created and assessed in a similar manner. Histologic analysis showed enhancement of healing over all time points for eCryo-treated donor sites. All other results showed no statistically significant improvement with the use of eCryo. Autologous cryoprecipitate appears to be a safe, inexpensive and easy-to-use alternative to fibrin glue, which carries risks and is, in many cases, prohibitively expensive. Further studies are necessary to evaluate the full potential of eCryo. Interestingly, eCryo application may improve donor site aesthetic appearance. We believe that a pig model most reliably simulates eCryo's behaviour in humans to accurately reflect its future clinical applicability.


Assuntos
Fator VIII/uso terapêutico , Fibrinogênio/uso terapêutico , Fibronectinas/uso terapêutico , Transplante de Pele , Cicatrização , Animais , Modelos Animais de Doenças , Transplante de Pele/métodos , Suínos , Sítio Doador de Transplante/fisiologia
14.
Wounds ; 25(4): 89-93, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25868056

RESUMO

INTRODUCTION: Optimal pressure settings have been suggested in the use of negative pressure wound therapy (NPWT) in wound dressings. When used as a bolster for skin grafting, an NPWT setting of 125 mm Hg was initially suggested, but not validated through studies. The objective of this study is to report findings on the effect of varied pressure settings on the incorporation of split thickness skin grafts when using an NPWT bolster. METHODS: From 2007 to 2010, 48 inpatients underwent split thickness skin grafting using a negative pressure system as a bolster under the care of 2 surgeons at 2 academic institutions. Twenty-two patients were evaluated retrospectively who were treated using NPWT bolsters at 75 mm Hg and 125 mm Hg based on the surgeon's discretion. Twenty-six patients were evaluated prospectively and were randomized to 50 mm Hg, 75 mm Hg, 100 mm Hg, and 125 mm Hg pressure settings. Graft incorporation was assessed at time of bolster removal, 2 weeks, and 4 weeks, per standard protocol. RESULTS: At each assessment point, incorporation of each skin graft was > 95% in all study subjects, at all pressure settings. CONCLUSION: Whereas initially postulated to be 125 mm Hg, ideal pressure settings for NPWT, when used as a bolster for split thickness skin grafts, may be lower. This study suggests that pressures as low as 50 mm Hg can be tolerated without compromise of skin graft incorporation. Study findings were presented at the Plastic Surgery Research Council Meeting in San Francisco, CA in April of 2010. .

15.
Ann Plast Surg ; 68(4): 360-1, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22421478

RESUMO

Pixie ear is a condition in which the posterior edge of the helix extends straight down to the cheek-jaw intersection, without sweeping back up anteriorly to form a lobe. It occurs congenitally, but more commonly is a postoperative condition, following facelift surgery. Over the years, a handful of methods have been proposed to restore a normal earlobe contour in patients with pixie-ear defects, regardless of etiology. However, virtually all either result in an exposed scar or have limited or undocumented follow-up. The technique described here, resulting in a hidden scar on the mastoid-facing portion of the newly formed lobe and at the mastoid, behind the lobe, has been performed 26 times, with follow-up as long as 20 years.


Assuntos
Pavilhão Auricular/anormalidades , Pavilhão Auricular/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Cicatriz/prevenção & controle , Estudos de Coortes , Estética , Feminino , Humanos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Resultado do Tratamento
17.
J Reconstr Microsurg ; 28(3): 211-9, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22399254

RESUMO

Extensive abdominal wall defects may result from tumor extirpation, traumatic injury, or soft tissue infections. Extensive traumatic injuries can often disrupt the soft tissue content of the abdomen as well as the bony support provided by the pelvis. Reconstruction of the lower abdomen should aim to recreate dynamic stability. Five patients with extensive lower abdominal wall disruption following traumatic injuries or infection were treated using a novel flap for functional reconstruction. We devised a free neurotized osteomyocutaneous tensor fasciae latae (TFL) flap that would restore bony continuity by providing a vascularized bone graft and simultaneously maintain the integrity of the attachment of the tensor fascia latae muscle to the iliac crest, reestablishing musculofascial continuity. A branch of the superior gluteal nerve was harvested with this composite flap and coapted to an intercostal nerve for reinnervation, thereby creating a dynamic muscle in these patients. All patients underwent successful free tissue reconstruction with 100% flap survival. The lower abdominal wall and bony integrity of the pelvis were successfully reconstructed. Reinnervation has shown clinical signs of maintained dynamic stability. The innervated TFL osteomyocutaneous flap is an ideal option for lower abdominal reconstruction in patients with complex abdominoperineal defects with loss of bony integrity.


Assuntos
Traumatismos Abdominais/cirurgia , Parede Abdominal/cirurgia , Fascia Lata/transplante , Retalhos de Tecido Biológico/irrigação sanguínea , Procedimentos de Cirurgia Plástica/métodos , Traumatismos Abdominais/diagnóstico , Acidentes de Trânsito , Adolescente , Adulto , Fascia Lata/cirurgia , Feminino , Seguimentos , Sobrevivência de Enxerto , Humanos , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Estudos de Amostragem , Transplante de Pele/métodos , Coleta de Tecidos e Órgãos , Sítio Doador de Transplante , Resultado do Tratamento , Cicatrização/fisiologia
18.
Plast Reconstr Surg ; 147(1S-1): 61S-67S, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-33347064

RESUMO

BACKGROUND: The addition of topical fluid instillation, a programmable "dwell" time and a novel foam-wound interface to the established wound healing benefits of negative-pressure wound therapy (NPWT) works synergistically to benefit patients with complex wounds. This engineering breakthrough for wound care has been termed NPWT with instillation and dwell (NPWTi-d), and the new foam dressings are reticulated open cell foam dressings specifically designed for use with NPWTi-d. This combined technology has shown promise in chronic, complex wounds and has potential for the management of sacral and ischial pressure wounds. METHODS: A qualitative comprehensive review was performed analyzing articles from PubMed and Medline that reported on the use of NPWTi-d in sacral or ischial pressure ulcers. Case series and case reports were predominant, and results of cases specific to sacral and ischial pressure wounds were extracted from larger studies and summarized for presentation. RESULTS: Compared with conventional NPWT alone, NPWTi-d has been shown to help irrigate the wound, remove fibrinous debris, and promote granulation tissue formation. This is associated with a decreased number of operative debridements and decreased hospital length of stay. CONCLUSIONS: This technology is rapidly demonstrating expanded utilization in hospitalized patients with chronic sacral and ischial pressure ulcers. When used correctly, NPWTi-d serves as an effective "bridge to defined endpoint": whether that is a flap reconstruction, skin grafting, or discharge home with a stable chronic wound and simplified wound care.


Assuntos
Tratamento de Ferimentos com Pressão Negativa/métodos , Úlcera por Pressão/terapia , Região Sacrococcígea/patologia , Irrigação Terapêutica/métodos , Bandagens , Desbridamento/estatística & dados numéricos , Humanos , Instilação de Medicamentos , Tempo de Internação/estatística & dados numéricos , Úlcera por Pressão/patologia , Solução Salina/administração & dosagem , Retalhos Cirúrgicos/transplante , Resultado do Tratamento , Cicatrização
19.
Plast Reconstr Surg ; 147(1S-1): 43S-53S, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-33347062

RESUMO

BACKGROUND: A promising and useful development of negative-pressure wound therapy (NPWT) is the addition of instillation and dwell time of topical wound solutions (NPWTi-d). Uses of NPWTi-d include acute and traumatic wounds, whereby wound closure may be facilitated via wound cleansing and promotion of granulation tissue formation. This systematic review summarizes publications on NPWTi-d in the treatment of acute and traumatic wounds. METHODS: A systematic review was performed analyzing articles from major clinical databases. Only clinical studies ≥10 patients reporting on the application of NPWTi-d in acute and traumatic wounds were included. RESULTS: One hundred ninety-two articles were retrieved, of which 10 articles met inclusion criteria. Of those, 2 were lesser-quality randomized controlled trials, comparative studies or prospective cohorts, 2 were retrospective studies, and 6 retrospective cohort studies. In total, included publications reported 109 patients with acute and traumatic wounds treated with NPWTi-d. Data from these studies indicated the potential for reduction in bacterial bioburden through wound cleansing and promotion of granulation tissue formation, thereby facilitating wound closure, reduced length of therapy and hospital time. However, for most publications, different wound causes and subsequently no isolated results for acute and traumatic wounds were reported. CONCLUSION: NPWTi-d has promise to be effective in facilitating wound closure and reducing the time for wound closure. The present systematic review demonstrates a relatively low level of evidence available to objectively support this effect. To underline these positive results, large prospective, randomized controlled trials are necessary to manifest the role of NPWTi-d in the daily clinical routine for this wound category.


Assuntos
Desbridamento/métodos , Medicina Baseada em Evidências/métodos , Tratamento de Ferimentos com Pressão Negativa/métodos , Irrigação Terapêutica/métodos , Ferimentos e Lesões/terapia , Doença Aguda/terapia , Anti-Infecciosos Locais/administração & dosagem , Bandagens , Desbridamento/instrumentação , Medicina Baseada em Evidências/instrumentação , Humanos , Instilação de Medicamentos , Tratamento de Ferimentos com Pressão Negativa/instrumentação , Solução Salina/administração & dosagem , Irrigação Terapêutica/instrumentação , Resultado do Tratamento , Cicatrização
20.
Am Surg ; 75(10): 995-9, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19886152

RESUMO

Abdominoperineal resection (APR) after pelvic radiation can be complicated by an increased rate of difficult to treat perineal wound complications. In an effort to improve postoperative morbidity after APR, myocutaneous flap reconstructions have been used. We review our recent experience with APR with vertical rectus abdominis myocutaneous flap reconstruction (VRAM) after preoperative pelvic radiation. A retrospective review of patients who underwent APR with VRAM reconstruction after pelvic radiation from December 2004 to July 2008 was conducted. Outcome measures included demographics, comorbidities, length of stay, wound complications, and morbidity and mortality. Fifteen patients with a mean age of 61 +/- 9 years underwent APR with VRAM reconstruction. Five patients also required posterior vaginectomy with the APR. Indications for APR were rectal cancer (n = 14, 93%) and anal canal cancer (n = 1, 7%). There were no intraoperative complications. Mean estimated blood loss was 635 +/- 446 mL and mean intraoperative blood transfusion requirements were 1 +/- 2 units. Mean length of hospital stay was 11 +/- 4 days. Six (40%) patients had minor perineal wound complications. One (7%) patient had a perineal wound infection requiring reoperation with washout and reapproximation. There was no 30-day or in-hospital mortality. All VRAM flaps remained viable through follow-up. APR with VRAM flap reconstruction after preoperative pelvic radiation can be performed safely with limited wound complications and no mortality.


Assuntos
Períneo/cirurgia , Neoplasias Retais/radioterapia , Neoplasias Retais/cirurgia , Reto do Abdome/cirurgia , Retalhos Cirúrgicos , Idoso , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pelve , Radioterapia Adjuvante , Neoplasias Retais/patologia , Reoperação , Estudos Retrospectivos , Resultado do Tratamento
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