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Persistent lymphocele of the groin is a complication of groin surgery that can severely impact the quality of life. The restoration of the interrupted lymphatic pathway is considered by many authors the ideal treatment to prevent a recurrence. However, multiple aspiration procedures and surgical revisions can compromise the availability of local veins needed for a lymphovenular bypass surgery. In addition, surgical debridement of a long-standing lymphocele can generate extensive dead space and contour deformity. A flap delivering additional venules for trans-flap lymphovenular anastomoses (LVAs) can overcome both problems by providing soft tissue and competent veins harvested outside the zone of injury. A successful case of severe groin lymphocele treated with trans-flap LVAs from an abdominal-based flap is presented. The patient was referred to us for a recurrent lymphocele developed in the right groin after lipoma excision that persisted despite multiple surgical attempts. After the identification of patent and draining inguinal lymphatic vessels, a pinch test was used to design a mini-abdominoplasty superficial inferior epigastric artery flap. The superficial veins of the cranial incision were identified and anastomosed to the lymphatic vessels after the pedicled flap harvested and insetted in the groin. The early restoration of lymphatic drainage and the optimal aesthetic outcome supports the combined approach offered by trans-flap LVAs as a valuable therapeutic option for severe and persistent lymphocele.
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BACKGROUND: The treatment of post-paretic facial synkinesis is based on a combination of nonsurgical and surgical strategies. Even if improvements towards the restoration of a natural smile have been obtained with selective neurectomies (SN) and depressor anguli oris (DAO) myectomy, the lower lip frequently remains asymmetric and cranially displaced. The aim of this study was to evaluate the effect of the mentalis muscle on the position and symmetry of the lower lip in patients with synkinesis and to assess the added benefit of neurectomies of nerves innervating the mentalis muscle in improving the lower lip configuration and mandibular teeth show. METHODS: A retrospective cohort study on all patients affected by post-paretic synkinesis at our Institution was performed. A Non-mentalis Neurectomy Group including twelve patients treated with SN without targeting the branches to mentalis muscle was compared to a Mentalis Neurectomy Group, including sixteen patients who underwent additional specific mentalis branches neurectomies. All patients underwent DAO myectomy. Analyses of standardized images were performed with ImageJ software. RESULTS: Post-operative comparisons between the two groups showed superior and significant improvements in the Mentalis Neurectomy Group across all measures, including lower and upper border deviation (p=0.035 and p=.004, respectively), inclination of the lower lip (p=.019), and lower quadrant dental show (p=.004). CONCLUSIONS: The addition of targeted selective neurectomies to the branches innervating mentalis muscle significantly improved dental show and caudal position and symmetry of the lower lip during open mouth smile.
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AIM: Dynavisc® is a novel surgical product made of carboxymethylcellulose (CMC) and Polyethylene Oxide (PEO) designed to reduce post-surgical adhesions in tendons surgery. A multicenter retrospective cohort study was performed to investigate the clinical safety and efficacy of the Dynavisc® gel in reducing post-surgical adhesions after flexor tenolysis in zone 2. MATERIAL OF STUDY: Thirty-one patients suffering from stiff finger after flexor tendon repairs in zone 2 treated with standard release with (18 Dynavisc®-treated group) or without (13 controls) anti-adhesion gel application into the flexor tendon sheath and around the site of the tenolysis, were collected in five different hand surgery units. Safety profile and functional outcomes (based on TAM test and the The Quick-DASH questionnaire) were examined from patients' charts and analyzed. RESULTS: The application of Dynavisc® posed no safety concerns and it was not related to any additional complication. The Dynavisc®-treated group showed greater progressive improvement of TAM value in all visits with superior TAM value at T(90) and T(180) compared to the control group. DISCUSSION: Tendon adhesions are the main cause of flexor tendon surgery failure. Multiple strategies (i.e. robust tendon repair, early rehabilitation and lubricant or barrier agents) have been proposed to minimize their formation. Among different products described in the literature Dynavisc® showed a significant role in limiting adhesions formation in a recent experimental study. CONCLUSIONS: This clinical study confirm the safety of Dynavisc® gel application in hand surgery demonstrating its potential long-term benefits after flexor tendon tenolysis. KEY WORDS: Flexor Tendon Repair, Tendon Adhesions, Tenolysis.
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Antifibróticos , Carboximetilcelulose Sódica , Cicatriz , Polietilenoglicóis , Tendões , Aderências Teciduais , Humanos , Cicatriz/etiologia , Cicatriz/prevenção & controle , Estudos Retrospectivos , Traumatismos dos Tendões/cirurgia , Traumatismos dos Tendões/complicações , Tendões/cirurgia , Aderências Teciduais/etiologia , Aderências Teciduais/prevenção & controle , Carboximetilcelulose Sódica/administração & dosagem , Carboximetilcelulose Sódica/uso terapêutico , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/uso terapêutico , Antifibróticos/administração & dosagem , Antifibróticos/uso terapêutico , Combinação de Medicamentos , GéisRESUMO
Autologous breast reconstruction is considered the gold standard technique for breast reconstruction following mastectomy. Thanks to recent refinements the main focus of surgery has shifted from flaps survival and donor site morbidity to optimal aesthetic outcomes and patients' satisfaction. However, prolonged operative time remains a limiting aspect for many patients and surgeons who aim in improving access to care and outcomes. Process mapping is a quality improvement strategy consisting of the creation of a visual representation of a process to recognize errors, minimize waste and optimize outcomes. It has been effectively applied in abdominal based autologous breast reconstruction in nine papers. The process segments and analysis varied between published papers, but all authors focused on intraoperative process mapping and reported reduced operative times. Additional preoperative and postoperative factors have been studied and are commonly applied to further optimize efficiency (such as preoperative CTA, co-surgery model, flap perfusion evaluation, postoperative monitoring, and ERAS protocol). Although shorter operative times are related to decrease surgical morbidity and faster recovery time, and safety, the aesthetic outcome should remain the main focus in autologous breast reconstruction. In fact, the true ultimate aim should be the achievement of high patient satisfaction.
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BACKGROUND: Due to the high demand of post-bariatric surgeries, the number of litigation cases is rapidly growing. Even if surgical mistakes still represent one of the main causes of medico-legal issues, many disputes depend on what happens in the post-operative course. In this article we analyzed the litigation cases that occurred in our Plastic Surgery Department, the current literature about medico-legal disputes and the importance of the doctor-patient relationship. PATIENTS AND METHODS: The medical records of 788 post-bariatric surgeries, the post-operative complications and the related litigation cases from January 2015 to December 2019 were collected, analyzed and compared. RESULTS: We performed 380 abdominoplasties, 28 torsoplasties, 65 breast reductions, 99 mastopexies, 94 brachioplasties, 52 thighplasties, 65 liposuctions and 5 facelifts between 2015 and 2019. Eight patients complained of medical issues and claimed for litigation. Despite in all cases the judges highlighted the risk of consent misinterpretation, the payout was granted only in one case. CONCLUSION: Post-bariatric patients often mistake their preoperative condition and consider body contouring procedures as an aesthetic surgery treatment. Patients should be therefore clearly informed about the complexity of body contouring procedures after massive weight loss, which should never be compared to aesthetic surgery. Surgeons should always promote the communication with their patients and build a strong and trustworthy relationship. This attitude will allow to deal more easily with complications and, in the worst situations, with medico-legal litigations. 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 .
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Abdominoplastia , Cirurgia Bariátrica , Contorno Corporal , Lipectomia , Cirurgia Plástica , Humanos , Relações Médico-Paciente , Cirurgia Bariátrica/efeitos adversos , Cirurgia Bariátrica/métodos , Abdominoplastia/métodos , Contorno Corporal/métodosRESUMO
We are sitting on the cusp of the bioengineered breast era, in which implant-based breast reconstruction is seeing a growing trend and biotechnology research progressively empowers clinical practice. As never before, the choice of biomaterials has acquired great importance for achieving reconstructive outcomes, and the increase in the use of acellular dermal matrices (ADMs) in the field of senology tells us a story of profound upheaval and progress. With the advent of prepectoral breast reconstruction (PPBR), plenty of devices have been proposed to wrap the silicone prosthesis, either completely or partially. However, this has caused a great deal of confusion and dissent with regard to the adoption of feasible reconstructive strategies as well as the original scientific rationale underlying the prepectoral approach. Braxon® is the very first device that made prepectoral implant positioning possible, wrapping around the prosthesis and exerting the proven ADM regenerative potential at the implant-tissue interface, taking advantage of the body's physiological healing mechanisms. To date, the Braxon® method is among the most studied and practiced worldwide, and more than 50 publications confirm the superior performance of the device in the most varied clinical scenarios. However, a comprehensive record of the working of this pioneering device is still missing. Therefore, our aim with this review is to lay a structured knowledge of surgery with BRAXON® and to provide a decision-making tool in the field of PPBR through a complete understanding on the very first device for prepectoral, one decade after its introduction.
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Volumetric muscle loss (VML) is the traumatic/surgical loss of skeletal muscle, causing aesthetic damage and functional impairment. Suboptimal current surgical treatments are driving research towards the development of optimised regenerative therapies. The grafting of bioengineered scaffolds derived from decellularized skeletal muscle may be a valid option to promote structural and functional healing. In this work, a cellular human diaphragm was considered as a scaffold material for VML treatment. Decellularization occurred through four detergent-enzymatic protocols involving (1) sodium dodecyl sulfate (SDS), (2) SDS + TergitolTM, (3) sodium deoxycholate, and (4) TergitolTM. After decellularization, cells, DNA (≤50 ng/mg of tissue), and muscle fibres were efficiently removed, with the preservation of collagen/elastin and 60%-70% of the glycosaminoglycan component. The detergent-enzymatic treatments did not affect the expression of specific extracellular matrix markers (Collagen I and IV, Laminin), while causing the loss of HLA-DR expression to produce non-immunogenic grafts. Adipose-derived stem cells grown by indirect co-culture with decellularized samples maintained 80%-90% viability, demonstrating the biosafety of the scaffolds. Overall, the tested protocols were quite equivalent, with the patches treated by SDS + TergitolTM showing better collagen preservation. After subcutaneous implant in Balb/c mice, these acellular diaphragmatic grafts did not elicit a severe immune reaction, integrating with the host tissue.
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BACKGROUND: Capsular contracture (CC) represents one of the most common complications in breast reconstruction surgery, impairing final result and patients' well-being. The role of acellular dermal matrixes (ADM) has been widely described for the treatment and prevention of contracture. The aim of the study was to evaluate the efficacy and safety of complete implant coverage with porcine-derived ADM in preventing CC limiting complications. In addition, patients' reported outcomes were evaluated in order to define the role of ADM in improving sexual, physical and psychosocial well-being and satisfaction. METHODS: 42 patients who underwent surgical treatment of 46 contracted reconstructed breasts from May 2018th to May 2019th were collected in the two groups (ADM group vs. Control group). RESULTS: The ADM group showed lower rate of CC recurrence and a higher rate of implant losses and minor complications. A significant difference was observed in red breast syndrome (27.3% in the ADM group vs. absent in control the group) and skin ulceration rates (18.2% in the ADM group vs. 4.18% in the control group). As for patients' perceived outcomes, the ADM group showed a statistically significant higher postoperative Satisfaction of Breast Scale score compared to the control group. In addition, a significant difference was observed in the improvement of Physical Well-Being of the Chest Scale and the Satisfaction of Breast Scale after surgery, in favor to the ADM group. CONCLUSION: Complete implant coverage with ADM may reduce the risk of CC recurrence in breast reconstruction. An accurate patient selection allows minimizing complications improving patient well-being and satisfaction. 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 .
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Derme Acelular , Implante Mamário , Implantes de Mama , Contratura , Mamoplastia , Animais , Implante Mamário/efeitos adversos , Implantes de Mama/efeitos adversos , Estudos de Casos e Controles , Contratura Capsular em Implantes/etiologia , Contratura Capsular em Implantes/prevenção & controle , Contratura Capsular em Implantes/cirurgia , Mamoplastia/efeitos adversos , Mastectomia , Estudos Retrospectivos , Suínos , Resultado do TratamentoRESUMO
Regenerative medicine and surgery is a rapidly expanding branch of translational research in tissue engineering, cellular and molecular biology. To date, the methods to improve cell intake, survival, and isolation need to comply with a complex and still unclear regulatory frame, becoming everyday more restrictive and often limiting the effectiveness and outcome of the therapeutic choices. Thus, the authors developed a novel 360° regenerative strategy based on the synergic action of several new components called the bioactive composite therapies (BACTs) to improve grafted cells intake, and survival in total compliance with the legal and ethical limits of the current regulatory frame. The rationale at the origin of this new technology is based on the evidence that cells need supportive substrate to survive in vitro and this observation, applying the concept of translational medicine, is true also in vivo. Bioactive composite mixtures (BACMs) are tailor-made bioactive mixtures containing several bioactive components that support cells' survival and induce a regenerative response in vivo by stimulating the recipient site to act as an in situ real bioreactor. Many different tissues have been used in the past for the isolation of cells, molecules, and growth factors, but the adipose tissue and its stromal vascular fraction (SVF) remains the most valuable, abundant, safe, and reliable source of regenerative components and particularly of adipose-derived stems cells (ADSCs). The role of plastic surgeons as the historical experts in all the most advanced techniques for harvesting, manipulating, and grafting adipose tissue is fundamental in this constant process of expansion of regenerative procedures. In this article, we analyze the main causes of cell death and the strategies for preventing it, and we present all the technical steps for preparing the main components of BACMs and the different mixing modalities to obtain the most efficient regenerative action on different clinical and pathological conditions. The second section of this work is dedicated to the logical and sequential evolution from simple bioactive composite grafts (BACGs) that distinguished our initial approach to regenerative medicine, to BACTs where many other fundamental technical steps are analyzed and integrated for supporting and enhancing the most efficient regenerative activity. Level of Evidence: Not gradable.
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BACKGROUND: SARS-CoV-2 and its related COVID-19 are now affecting people worldwide. The pandemic, started at the end of 2019 and spread in Europe and all over the world at the beginning of the 2020, is the biggest threat to the health and to the economy of all countries, since the time of Spanish Flu. A global effort is being made to counter the virus with social distancing and restrictions, but our habits and behavior have dramatically been modified. Hospital activity has changed, and Plastic Surgery is affected as well as other disciplines. MATERIALS, METHODS AND RESULTS: Our work describes the impact of the pandemic on a Plastic Surgery Unit in a tertiary care hospital and estimates the possible consequences in the near future. Elective procedures and consultations have been postposed and rescheduled, but we ensured treatment for life-threatening conditions and offered the best therapy, complying with the new safety standard to protect the patients and the healthcare providers. Media helped in keeping in touch the people, ensuring continuity in education and circulation of the data about SARS-CoV-2 research. CONCLUSION: We don't know yet what the overall cost of the crisis will be on the global economy and on the National Health Systems. Definitely, it will be a big challenge to face, both for the Governments, for the people, as for healthcare providers. However, to date, we should remind our responsibilities as doctors, as we can contribute with our efforts and our knowledge to ensure continuity of care and research. KEY WORDS: COVID, COVID-19, Italy, Outbreak, Pandemic, Plastic Surgery, SARS-Cov-2.
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COVID-19 , Influenza Pandêmica, 1918-1919 , Cirurgiões , Cirurgia Plástica , Humanos , Pandemias , SARS-CoV-2RESUMO
BACKGROUND: Due to the great impact of bariatric surgery on the overweight epidemic, the number of post-bariatric body-contouring procedures is constantly increasing worldwide. The portable incisional negative pressure wound therapy (piNPWT) is a promising medical device for accelerating wounds closure and controlling post-operative complication, which have been shown promising results in post-bariatric population. We aimed to evaluate the role of piNPWT in optimizing wound healing and controlling post-operative complications after a post-bariatric brachioplasty. PATIENTS AND METHODS: 26 post-bariatric female patients who underwent a brachioplasty followed by either a piNPWT (14 cases) or a standard wound treatment (12 controls) were analyzed. The number of post-operative dressing changes, the rate of local post-operative complications (re-operation, hematoma and serosa development, dehiscence and necrosis), the time to dry as well as the scar quality and hospitalization length were evaluated. RESULTS: None of the patients prematurely stopped treatment with piNPWT due to intolerance. The piNPWT patient group showed a significant lower healing time as well as a significant reduction of the number of post-operative dressing changes and hospital stay. Despite the scarring process was excellent from the functional point of view in the long term, we noticed a higher rate of hyperchromic scarring at 90 days after surgery. CONCLUSION: The piNPWT is a cost-effective and user-friendly medical tool that increase and promote wound healing. We suggest the use of this device in post-bariatric patients who undergo a brachioplasty, especially if there is the need to minimize the number of post-operative dressing changes. 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 Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Cirurgia Bariátrica , Bariatria , Tratamento de Ferimentos com Pressão Negativa , Obesidade Mórbida , Cirurgia Bariátrica/efeitos adversos , Estudos de Casos e Controles , Feminino , Humanos , Obesidade Mórbida/cirurgiaRESUMO
. The reorganization of the strategies of a surgical department and the nosocomial diffusion of Covid-19. INTRODUCTION: During the SARS-CoV2 pandemic, preventive measures and patients' selection were adopted to allow the treatment of non-deferrable oncological and trauma cases and to contain hospital diffusion of the virus. The reorganization of the ward management associated to the training of healthcare providers are the first available interventions. AIM: To describe the interventions implemented to limit the spread of virus during the peak of pandemic in a high daily turn-over 25 beds surgical ward (9 patient admitted per day/mean duration of hospital stay 2.3 days). METHOD: Description of the interventions implemented and of the admissions from March 9 to May 18 2020, and the swab results. RESULTS: 392 patients were treated in the period considered (342 were scheduled cases - 50 urgent cases; 364 were adults and 28 children). All scheduled patients underwent a screening survey, 5% of those contacted showed a risk factor at the interview and were rescheduled; 190 patients underwent a preoperative screening swab, all with negative results. None of healthcare providers was positive to swabs. CONCLUSIONS: The prompt application of preventive measures and patients screening (preoperative interview and screening swab) possibly allowed to control the spread of SARS-CoV2 in our hospital. Sharing our experience would allow to find consensus to guarantee the safety for patients and healthcare workers.
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Infecções por Coronavirus/prevenção & controle , Infecção Hospitalar/prevenção & controle , Programas de Rastreamento/métodos , Pandemias/prevenção & controle , Pneumonia Viral/prevenção & controle , Centro Cirúrgico Hospitalar/organização & administração , Adulto , COVID-19 , Criança , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Infecção Hospitalar/virologia , Humanos , Tempo de Internação , Recursos Humanos em Hospital/estatística & dados numéricos , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Fatores de Risco , Inquéritos e QuestionáriosRESUMO
In the current study, we used breath-by-breath respirometry to evaluate respiratory physiology under voluntary control in a male beluga calf [Delphinapterus leucas, body mass range (M b): 151-175 kg], an adult female (estimated M b = 500-550 kg) and a juvenile male (M b = 279 kg) false killer whale (Pseudorca crassidens) housed in managed care. Our results suggest that the measured breathing frequency (f R) is lower, while tidal volume (V T) is significantly greater as compared with allometric predictions from terrestrial mammals. Including previously published data from adult bottlenose dolphin (Tursiops truncatus) beluga, harbor porpoise (Phocoena phocoena), killer whale (Orcinus orca), pilot whale (Globicephala scammoni), and gray whale (Eschrichtius robustus) show that the allometric mass-exponents for V T and f R are similar to that for terrestrial mammals (V T: 1.00, f R: -0.20). In addition, our results suggest an allometric relationship for respiratory flow ( V . ), with a mass-exponent between 0.63 and 0.70, and where the expiratory V . was an average 30% higher as compared with inspiratory V . . These data provide enhanced understanding of the respiratory physiology of cetaceans and are useful to provide proxies of lung function to better understand lung health or physiological limitations.
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Preoperative blepharoplasty markings might be challenging, especially for young surgeons. It takes experience to carefully evaluate the amount of skin excess that can be safely removed. In the current study, we explored the use of microsurgical vascular clamps as a novel and useful tool in the preoperative upper blepharoplasty markings; they made it possible to directly visualize the amount of skin to be removed, facilitating the surgeon (especially the young surgeon) preoperative markings process. In our series, 30 patients underwent upper blepharoplasty with preoperative application of microvascular clamps with satisfactory results.
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BACKGROUND: Ear avulsion is a rare complication of different traumas, such as car accidents, human or animal bites and stab wounds, and can result in dramatic cosmetic consequences for the patient. Ear replantation, revascularization, and reattachment are the options offering best aesthetic results. But venous outflow insufficiency is responsible for a high rate of failures. Leeching is one the most efficient methods to relieve venous congestion. It has been used as an alternative venous outflow in case of severe impairment of the physiologic one. METHODS: We present a case of successful rescue of a congested reattached ear by leeching after subtotal avulsion, along with a review of the literature on cases of avulsed auricle reconstruction salvaged by hirudotherapy. Data were collected and analyzed to identify a best regimen to deal with venous congestion. RESULTS: More than 130 cases of avulsed auricle savage are described in the literature, in a fourth of which leech therapy was used in the management of venous congestion. DISCUSSION: In case of both venous outflow deficit or absence, leeches are a potentially successful option to correct the congestion while new veins reestablish normal physiology. The need for anticoagulant/antiaggregant therapy, antibiotics, and often blood transfusion are the main pitfalls of leeching. CONCLUSION: Leeches can be considered a salvage method for ear replantation and reattachment in those cases that lack venous outflow in the presence of valid arterial inflow.
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BACKGROUND: Intermittent external volume expansion using suction enhances the vascular network of soft tissues, possibly increasing fat graft survival. However, the optimal kinetics of application have not been determined. Based on their previous experience, the authors hypothesized that moderate-intensity intermittent external volume expansion application may further enhance both the angiogenic and adipogenic potential. METHODS: Fifty 12-week-old wild-type mice were assigned to five experimental groups (n = 10 per group) and underwent five different intermittent applications of external volume expansion (i.e., single-application control, low-intensity, moderate-intensity, and two groups of high-intensity). Five days after the final stimulation, skin biopsy specimens were obtained from stimulated and contralateral nonstimulated areas. Microscopic sections were analyzed for angiogenesis, skin remodeling, and adipogenesis. RESULTS: Moderate-intensity intermittent stimulation (0.5 hour, 6 times/day for 5 days at -25 mmHg suction) almost doubled cutaneous vascular density (1.9-fold increase), induced skin thickening (1.9-fold increase), and expanded the subcutaneous tissue (2.3-fold increase) compared with control. External volume expansion kinetics did not affect tissue inflammation at 5 days after treatment. High-intensity intermittent stimulations also increased the density of blood vessels (1.6-fold increase compared with controls) but caused tissue damage, whereas low-intensity external volume expansion did not induce significant changes. CONCLUSION: Application of moderate-intensity intermittent external volume expansion optimizes induction of angiogenesis and adipogenesis in soft tissues without tissue damage, holding potential for time-effective recipient-site preconditioning before fat grafting.
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Adipogenia , Neovascularização Fisiológica , Expansão de Tecido/métodos , Animais , Feminino , Camundongos , Camundongos Endogâmicos C57BL , Modelos AnimaisRESUMO
Cutaneous syncytial myoepithelioma (CSM) is a very rare tumor belonging to the spectrum of skin myoepithelial lesions. CSM usually affects the upper extremities of young to middle aged patients and is characterized by peculiar morphological and immunohistochemical features. Unlike classic myoepithelioma, CSM is composed by a densely packed proliferation of spindled to histiocytoid cells, which are variably positive for EMA, S100, SMA, and frequently negative for cytokeratins and GFAP. The peculiar histopathology and the extreme rarity of such lesion (less than 40 cases reported in the literature) can make the diagnosis of CSM a true challenge. In the present case, we report the clinico-pathological features of a primary CSM occurring in a 38 year-old Caucasian man. The differential diagnoses of such lesion are also briefly discussed.
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Mioepitelioma/patologia , Neoplasias Cutâneas/patologia , Adulto , Biomarcadores Tumorais/metabolismo , Diagnóstico Diferencial , Humanos , Masculino , Mioepitelioma/diagnóstico , Mioepitelioma/metabolismo , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/metabolismoRESUMO
Surgical site infections (SSI) are a known complication of surgery. Silver-containing wound treatments are popular, despite the lack of evidence of SSI reduction. A two-armed study was conducted between July 2007 and November 2008 to evaluate the efficacy and ease of use of a postoperative silver dressing. In the first arm of the study, patients undergoing clean general, vascular, orthopedic, and neurosurgical procedures were allocated to receive a postoperative silver dressing (POSD) or a standard dressing of nonstick gauze under a fluid occlusive dressing. Outcome variables included the incidence of antibiotic initiation for SSI, clinical signs of infection, and leukocyte counts. The second arm of the study was a prospective case series designed to evaluate the performance and handling characteristics of the POSD. Onehundred- ninety-nine (199) patients (mean age 59.2 [range 21-94] years) were enrolled in the first arm of the study. Three out of 99 (3%) patients in the POSD and six out of 100 (6%) control group patients received antibiotic therapy for SSI (P = 0.498). Differences in the percentage of patients with clinical signs of infection following surgery also were not statistically significant (POSD: n = 24, 24.2%; control: n = 30, 30%; P = 0.426). In the second arm, 34 out of 36 patients rated the study dressing easy to apply in (94%), and no pain on removal was noted in 38 out of 57 (66.7%) assessments. No patients in the dressing performance cohort developed an SSI. Prospective, randomized, controlled clinical studies with large sample sizes are warranted to evaluate the efficacy and cost-effectiveness of the POSD.