Esofagitis necrotizante aguda / Acute necrotizing esophagitis / Esofagite necrotizante aguda

La esofagitis necrotizante aguda es un trastorno poco común que puede ser causa de hemorragia digestiva alta. Predomina en el sexo masculino en la sexta década de la vida. El diagnóstico es endoscópico y muestra una mucosa esofágica de apariencia negra que afecta al esófago distal en toda su circunferencia y se detiene abruptamente en la unión gastroesofágica. Clínicamente suele presentarse con hematemesis y melenas, shock hipovolémico por sangrado masivo, siendo otras manifestaciones el dolor epigástrico, molestia retroesternal y disfagia. Se vincula a pacientes con antecedentes de enfermedad cardiovascular, alcoholismo, diabetes mellitus, desnutrición, hernia hiatal, estenosis gastroduodenal, cáncer, así como pacientes en shock, traumatizados, sometidos a cirugía mayor e inmunosuprimidos. El tratamiento se basa en fluidoterapia, inhibidores de la bomba de protones y suspensión de la vía oral, siendo controvertido el uso de antibioticoterapia. Su pronóstico es malo y dependerá de la gravedad de la enfermedad esofágica y del terreno del paciente, con una mortalidad de hasta el 36 %. Presentamos el caso clínico de un paciente de 81 años, hipertenso, que presenta hematemesis, confirmándose en la endoscopía una esofagitis necrotizante aguda, que evoluciona favorablemente con tratamiento médico.

Acute necrotizing esophagitis is a rare disorder that can cause upper gastrointestinal bleeding. It predominates in males in the sixth decade of life. The diagnosis is endoscopic and shows a black-appearing esophageal mucosa that affects the entire circumference of the distal esophagus and stops abruptly at the gastroesophageal junction. Usually, patients present with hematemesis and melena, with other manifestations such as epigastric pain, retrosternal discomfort, dysphagia, and hypovolemic shock. Almost all patients reported comorbidities: cardiovascular disease, alcoholism, diabetes mellitus, malnutrition, hiatal hernia, gastroduodenal stenosis, and malignant neoplasia; is related as well to patients with shock, trauma, undergoing major surgery, and immunosuppression. The treatment is based on fluid reposition, proton pump inhibitors and suspension of the oral route, the use of antibiotic therapy being controversial. Its prognosis is poor and will depend on the severity of the esophageal disease and the patient comorbidities, with a mortality rate up to 36 %. Case: A 81-year-old male patient with hypertension, who presented hematemesis, confirmed by endoscopy as acute necrotizing esophagitis, whose evolution was favorable with medical treatment.

A esofagite necrosante aguda é uma doença rara que pode causar hemorragia digestiva alta. Predomina no sexo masculino na sexta década de vida. O diagnóstico é endoscópico e mostra uma mucosa esofágica circunferencial difusa com aspecto preto que envolve quase universalmente o esôfago distal e para abruptamente na junção gastroesofágica. Clinicamente, geralmente se apresenta com hematêmese e melena, com outras manifestações sendo dor epigástrica, desconforto retroesternal, disfagia e choque hipovolêmico. Está relacionado a pacientes com histórico de doenças cardiovasculares, alcoolismo, diabetes mellitus, desnutrição, hérnia hiatal, estenose gastroduodenal e neoplasia maligna, bem como pacientes em choque, trauma, cirurgia de grande porte e imunossupressão. O tratamento é a medicação dietética higiênica baseada em fluidoterapia, inibidores da bomba de prótons e suspensão da via oral, sendo o uso de antibioticoterapia controverso. Seu prognóstico é ruim e dependerá da gravidade da doença esofágica e do terreno do paciente, com mortalidade de até 36 %. Apresentamos o caso clínico de um paciente hipertenso de 81 anos que apresentou hematêmese, confirmada por endoscopia como esofagite necrosante aguda, que evoluiu favoravelmente com tratamento higiênico-dietético e medicamentoso.

Expert Consensus on the Treatment of Antiangiogenic Agents for Radiation Brain Necrosis / 中国肺癌杂志

Vascular damage is followed by vascular endothelial growth factor (VEGF) expression at high levels, which is an important mechanism for cerebral radiation necrosis (CRN) development. Antiangiogenic agents (Bevacizumab) alleviates brain edema symptoms caused by CRN through inhibiting VEGF and acting on vascular tissue around the brain necrosis area. Many studies have confirmed that Bevacizumab effectively relieves symptoms caused by brain necrosis, improves patients' performance status and brain necrosis imaging. Considering that the efficacy of antiangiogenic therapy is mainly related to the duration of drug action, low-dose antiangiogenic agents can achieve favorable efficacy. Prevention is the best treatment. The occurrence of CRN is associated with tumor-related factors and treatment-related factors. By controlling these factors, CRN can be effectively prevented.
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Hernia diafragmática secundaria a trauma: presentación tardía / Complicated diaphragmatic hernia: late outcome of trauma

Resumen Introducción: La hernia diafragmática complicada de presentación tardía constituye una urgencia quirúrgica. Los objetivos del presente estudio son la descripción de las características del diagnóstico de las hernias diafragmáticas de presentación tardía, tratamiento, resultados y la identificación del punto de corte entre el inicio de los síntomas y el desarrollo de necrosis. Pacientes y Métodos: Estudio retrospectivo de una serie de casos constituida por todos los pacientes operados por hernia diafragmática complicada de presentación tardía entre los años 2006 y 2016. Se midieron variables categóricas y continuas que se presentan con estadística descriptiva. Se utilizaron curvas Receiver Operating Characteristics (ROC) a las 6 y 12 h desde el inicio de los síntomas, para determinar el punto de corte del tiempo de presentación clínica en pacientes sometidos a resección de algún órgano. Una vez establecido el punto de corte se calcularon la sensibilidad; especificidad; las razones de verosimilitud positiva y negativa; los valores predictivos positivo y negativo; y la prevalencia. Resultados: La presentación clínica, estudio, diagnóstico y tratamiento fue similar a lo descrito en la literatura quirúrgica. Se estableció el punto de corte a las 12 h con sensibilidad de 80% y especificidad de 83%. Conclusiones: El diagnóstico y tratamiento de estos pacientes debería ser llevado a cabo antes de las 6 h desde el inicio de los síntomas. Aun cuando el universo descrito es reducido, se sugiere que después de las 12 h desde el momento de la estrangulación, los órganos comprometidos se encontrarán necróticos requiriendo resección quirúrgica.

Introduction: Late presentation of traumatic diaphragmatic hernia constitutes a true surgical emergency. The purposes of this study were to describe the diagnostic characteristics, treatment and outcomes of late presentation diaphragmatic hernias and to identify a cutoff point from the onset of symptoms to necrosis development. Patients and Methods: A retrospective series of cases constituted by all patients subjected to emergency diaphragmatic hernia repair form 2006 to 2016 was studied. Categorical and continuous variables were measured and analyzed with descriptive statistics. Receiver Operating Characteristics (ROC) curves at 6 and 12 hours from the onset of symptoms were used to determine the cutoff point for organ resection. Once stablished the cutoff point, sensitivity, specificity, positive and negative predictive values and prevalence were calculated. Results: Clinical presentation, diagnostic study and surgical treatment were similar to what has been already described. The cutoff point was defined at 12 hours from the onset of symptoms with 80% sensitivity and 83% sensibility. Conclusions: The diagnosis and treatment of these cases should be carried on before the first 6 hours after the onset of symptoms. Even though the universe of this study was small, we may suggest that after 12 hours form the onset of symptoms, the implicated organs would be found necrotic requiring surgical resection.

Radiotherapy and immune response: the systemic effects of a local treatment

Technological developments have allowed improvements in radiotherapy delivery, with higher precision and better sparing of normal tissue. For many years, it has been well known that ionizing radiation has not only local action but also systemic effects by triggering many molecular signaling pathways. There is still a lack of knowledge of this issue. This review focuses on the current literature about the effects of ionizing radiation on the immune system, either suppressing or stimulating the host reactions against the tumor, and the factors that interact with these responses, such as the radiation dose and dose / fraction effects in the tumor microenvironment and vasculature. In addition, some implications of these effects in cancer treatment, mainly in combined strategies, are addressed from the perspective of their interactions with the more advanced technology currently available, such as heavy ion therapy and nanotechnology.

Análisis de las complicaciones en pacientes con fractura-luxación de Lisfranc / Complication analysis in Lisfranc fracture-dislocation

Resumen: Objetivo: Valorar las complicaciones y secuelas del tratamiento de la fractura-luxación de Lisfranc (FLL). Material y métodos: Se realizó un estudio de cohortes ambispectivo trasversal de 83 pacientes con diagnóstico de fractura-luxación de Lisfranc. Se utilizó un protocolo de recopilación de datos con variables relacionadas con la lesión, parámetros clínicos, terapéuticos, complicaciones y escalas de valoración clínica. Resultados: 66 pacientes (79.5%) presentaron complicaciones tanto precoces como tardías. Las complicaciones precoces sumaron nueve casos de edema postoperatorio, tres de infección superficial, dos de necrosis cutánea que precisó injerto libre de piel (ILPH), uno de lesión vascular, uno de tromboembolismo pulmonar (TEP), uno de pérdida de reducción en el postoperatorio precoz, uno de mala reducción que precisó de nueva intervención. Entre las complicaciones tardías, 41 pacientes (49.40%) presentaron signos radiológicos de artrosis en la articulación tarsometatarsiana, cinco con enfermedad de Sudeck que precisó tratamiento, ocho con descalcificación por desuso, 12 con edema residual, uno con pérdida de reducción en fase tardía, uno con cicatriz hipertrófica y brida retráctil, uno con osteomielitis crónica, uno con seudoartrosis, tres con intolerancia/infección tardía al material de osteosíntesis; también hubo reintervención de siete pacientes en fase de secuelas donde se les realizó artrodesis. No se observó ninguna rotura de material de osteosíntesis. Casi la mitad de los pacientes (49.4%) recibieron algún tipo de indemnización económica tras el accidente. Conclusiones: El tratamiento de las FLL debe realizarse lo antes posible, ya que la estabilización en un breve plazo de tiempo puede ayudar a mejorar los resultados. La reducción anatómica no predice los buenos resultados. Un número importante de pacientes refirió dolor residual.

Abstract: Objective: To value the complications and sequels for patients with Lisfranc's fracture-luxation (FLL). Material and methods: A transverse ambispective study of cohorts was realized of 83 patients by diagnosis of Lisfranc's fracture-luxation. There was in use a protocol of withdrawal of information with variables related to the injury, clinical, therapeutic parameters, complications and scales of clinical valuation. Results: 66 patients (79.5%) presented complications grouping early and late. Analyzing the early complications, we observe 9 cases of postoperatory edema with inflammation and swelling, 3 cases of superficial infection, 2 cases of necrosis cutaneous that precise graft should free of skin (ILPH), 1 case of vascular complication, 1 case of pulmonary embolis (TEP), 1 case of loss of reduction in the precocious postoperatory, 1 case of bad reduction that was necessary new intervention. The late complications presented the following distribution: 41 patients (49.40%) presented radiological signs of degenerative osteoarthritis in the tarsometatarsal joint, 5 cases of Sudeck's disease that needed treatment, 8 cases of decalcification for disuse, 12 cases of edema and residual inflammation, 1 case of loss of reduction in late phase, 1 case of hypertrophic scar with retractable bridle, 1 case of chronic osteomyelitis, 1 case of seudodegenerative osteoarthritis, 3 cases of late intolerance/infection to the osteosynthesis material, reintervention of 7 patients in phase of sequels where they were realized artrodesis. No break of material was observed of osteosynthesis. Almost the half of the patients (49.4%) they received some type of economic indemnification after the accident. Conclusions: The treatment of the FLL must be realized as soon as possible, providing that the general condition of the patient and of the soft parts allows it, since the stabilization in the brief space of time can help to improve the results. The anatomical reduction cannot grant a good result. An important number of patients had residual pain.

Necrosis de injerto de tejido conectivo subepitelial asociado a incompetencia labial: reporte de un caso clínico / Necrosis of a subepitelial connective tissue graft associated with lip incompetence: case report

Se describe el reporte del caso de una paciente sana con incompetencia labial portadora de un implante dental en la zona de 1.2, a la cual se le realizó un injerto de tejido conectivo utilizando la técnica del «sobre¼ para mejorar un leve defecto estético existente. El injerto sufrió una necrosis, posiblemente debido a la condición de deshidratación a la que están sometidos los tejidos en estos pacientes que presentan incompetencia labial y respiración bucal. Se describe la resolución quirúrgica del caso mediante una segunda cirugía de injerto de tejido conectivo, y se entrega el manejo clínico para evitar la aparición de esta complicación.

We describe a case report of a patient with lip incompetence and a healthy carrier of a dental implant in the tooth 1.2, which was performed using a connective tissue graft technique for improving an existing slight cosmetic defect. The graft necrosis was possibly due to the dehydration that the tissues are subjected to in these patients with mouth breathing and labial incompetence. The surgical resolution of the case by a second connective tissue graft, and its clinical management to prevent the occurrence of this complication is presented.

Effects of traction on the spermatic cord of rats

PURPOSE: To determine whether tension in the spermatic cord of rats causes lesions in the testis, epididymis or vas deferens. METHODS: Forty Wistar rats were randomly allocated into four groups. A traction force of 1.6 Newton (N) in group I and 1 N in group II was applied to the right spermatic cord. Group III was the sham, and group IV served as the control. RESULTS: Testicular lesions occurred on the right side in 66.7% of the rats and on the left side in 46.1% of the rats. The testes showed a decreased number of Sertoli cells, necrosis and a decreased number of germ cells in the seminiferous tubules. Anatomopathological changes in the vas deferens were not identified. There was no decrease in the thickness of the muscle wall of the vas deferens. In the right epididymis, 71.8% of the animals showed a reduction and 5% showed an absence of intraluminal sperm. In the left epididymis, 37.5% of the rats showed a reduction. The volume and the final testicular weight of the right side in group IV was different from those in the other groups. CONCLUSIONS: Anatomopathological lesions were found in the testis and epididymis. .

Necrosis cutánea: un desafío para el médico / Skin necrosis: Report of eleven cases

Skin necrosis must be considered as a syndrome, because it is a clinical manifestation of different diseases. An early diagnosis is very important to choose the appropriate treatment. Therefore, its causes should be suspected and confirmed quickly. We report eleven patients with skin necrosis seen at our Department, caused by different etiologies: Warfarin-induced skin necrosis, loxoscelism, diabetic microangiopathy, ecthyma gangrenosum, disseminated intravascular coagulation, necrotizing vasculitis, paraneoplastic extensive necrotizing vasculitis, livedoid vasculopathy, necrotizing fasciitis, necrosis secondary to the use of vasoactive drugs and necrosis secondary to the use of cocaine. We also report the results of our literature review on the subject.

Neumonía complicada en pediatría, su manejo: un reto / Treatment of empyema thoracis and necrotizing pnueumonia in children

Complicated pneumonia with pleural effusion or empyema is a condition that its incidence has been increasing in recent years. Its early diagnosis and timely management reduce costs and shorten hospital stays for patients. The optimized diagnostic aids treatments. In recent years the intervention and fibrinolytic substances as VATS surgery have opened a positive outlook in handling controversies exist yet at the time of application. This article reviews these aspects.

La neumonía complicada con derrame pleural o empiema es una patología que ha ido incrementando su incidencia en los últimos años. Su diagnóstico temprano y su manejo oportuno disminuyen los costos y acortan las estancias hospitalarias de los pacientes. Las ayudas diagnósticas optimizan los tratamientos. En los últimos años la intervención con sustancias fibrinolíticas y las intervenciones quirúrgicas como la videotoracoscopia han abierto un panorama positivo en el manejo sin embargo, existen controversias en el momento de su aplicación. Este artículo hace una revisión de estos aspectos.

Intra-Abdominal Pressure in the Early Phase of Severe Acute Pancreatitis: Canary in a Coal Mine? Results from a Rigorous Validation Protocol

BACKGROUND/AIMS: Intra-abdominal hypertension (IAH) is being increasingly reported in patients with severe acute pancreatitis (SAP) with worsened outcomes. The present study was undertaken to evaluate intra-abdominal pressure (IAP) as a marker of severity in the entire spectrum of acute pancreatitis and to ascertain the relationship between IAP and development of complications in patients with SAP. METHODS: IAP was measured via the transvesical route by measurements performed at admission, once after controlling pain and then every 4 hours. Data were collected on the length of the hospital stay, the development of systemic inflammatory response syndrome (SIRS), multiorgan failure, the extent of necrosis, the presence of infection, pleural effusion, and mortality. RESULTS: In total, 40 patients were enrolled and followed up for 30 days. The development of IAH was exclusively associated with SAP with an APACHE II score > or =8 and/or persistent SIRS, identifying all patients who were going to develop abdominal compartment syndrome (ACS). The presence of ACS was associated with a significantly increased extent of pancreatic necrosis, multiple organ failure, and mortality. The mean admission IAP value did not differ significantly from the value obtained after pain control or the maximum IAP measured in the first 5 days. CONCLUSIONS: IAH is reliable marker of severe disease, and patients who manifest organ failure, persistent SIRS, or an Acute Physiology and Chronic health Evaluation II score > or =8 should be offered IAP surveillance. Severe pancreatitis is not a homogenous entity.

Desenvolvimento de modelo experimental de avulsão de retalhos em membros inferiores de ratos / Development of an experimental model of degloving injury in rats", "_e": "n

INTRODUÇÃO: Os ferimentos descolantes de membros inferiores geralmente se caracterizam como lesões graves e apresentam dificuldades na decisão quanto ao tratamento cirúrgico mais adequado a ser instituído, se reposicionamento do retalho avulsionado ao leito da ferida ou ressecção do retalho, seguido de seu adelgaçamento e enxertia de pele. O propósito deste estudo foi desenvolver um modelo experimental de avulsão de retalhos cutâneos em membros inferiores de ratos e observar a viabilidade do retalho após seu reposicionamento ao leito de origem, com a finalidade de melhor estudar as alterações relacionadas ao ferimento e de testar modalidades terapêuticas em retalhos avulsionados. MÉTODO: Foram utilizados 90 ratos Wistar machos, subdivididos em 4 grupos experimentais. Foi delineado um modelo de avulsão de retalhos no membro inferior do rato, baseado em 4 pedículos diferentes: pedículo de fluxo proximal (G1), pedículo de fluxo distal (G2), pedículo de fluxo lateral (G3) e pedículo de fluxo medial (G4). RESULTADOS: A comparação entre as médias de área de necrose do retalho desenluvado evidenciou diferença estatística significativa entre os 4 grupos estudados (P < 0,0001). CONCLUSÕES: O grupo com pedículo de fluxo distal (G2) apresentou maior área de necrose em relação à área total do retalho, sendo o mais adequado para testar agentes terapêuticos no retalho avulsionado.

BACKGROUND: The purpose of this study was to develop an experimental model for degloving injuries of the hind limbs of rats and observe flap viability after its relocation to the wound bed to better study the changes related to the injury and to test the therapeutic modalities in avulsed flaps. METHODS: Ninety male Wistar rats were divided into 4 experimental groups. A flap avulsion model on the lower limb of a rats was established, using 4 different pedicles: proximal flow pedicled flap (G1), distal flow pedicled flap (G2), lateral flow pedicled flap (G3), and medial flow pedicled flap (G4). RESULTS: Comparison between the mean necrotic area of the degloved flap showed statistically significant differences among the 4 groups (P < 0.0001). CONCLUSIONS: The group with the distal flow pedicled flap (G2) showed a higher necrotic area relative to the total flap area and it is the most suitable group for testing therapeutic agents in avulsed flaps.

Evaluation of the donor site after liposuction with a syringe in rabbits / Avaliação da zona doadora após lipoaspiração com seringa em coelhos

PURPOSE: To evaluate the donor site of adipocytes as well as histopathological alterations secondary to liposuction. METHODS: All animals underwent liposuction with a syringe on the right side of the back. While the left side of the back was used as control and did not undergo intervention. The 10 rabbits were divided into two groups A and B according the postoperative day which were submitted to euthanasia: 90 and 120 days. All adipose tissue from the donor site was analyzed and compared with the control macroscopic and light microscopy. Tissues were weighed and analyzed searching for histological changes and late inflammatory response to trauma such as fibrosis, fat necrosis and inflammation and macrophage infiltration. RESULTS: There was wide variation in adipose tissue volume between the experimental and the control on macroscopic analysis. The presence of histopathological changes was found in two samples at 90 days. CONCLUSIONS: There was a relationship between the presence of fibrosis with the weight and number of days after liposuction surgery in rabbits. The study show macroscopic difference between control and experiment sides in all rabbits.

OBJETIVO: Avaliar a zona doadora de adipócitos bem como as alterações histopatológicas secundárias a lipoaspiração. MÉTODOS: Todos os animais foram submetidos à lipoaspiração com seringa no lado direito do dorso. Enquanto o lado esquerdo do dorso foi usado como controle, não sofrendo intervenção. Os 10 coelhos foram divididos em dois grupos A e B conforme o dia pós-operatório (DPO) os quais foram submetidos à eutanásia: 90 DPO e 120 DPO. Todo tecido adiposo da zona doadora foi analisado e comparados com o controle macroscopicamente e à microscopia óptica. Os tecidos foram pesados e foram analisadas as variações histológicas em busca de uma resposta inflamatória tardia ao trauma como fibrose, inflamação, necrose gordurosa e infiltrado macrofágico. RESULTADOS: Foi observada grande variação de volume de tecido adiposo entre o experimento e o controle do dorso a macroscópica e a presença de alteração histopatológica em duas amostras aos 90 dias. CONCLUSÕES: Houve relação entre a presença de fibrose com o peso e numero de dias pós-operatório na lipoaspiração de coelhos. O estudo mostrou diferença entre os lados experimento e controle em todos os coelhos.

Ocular Manifestations of Acquired Immunodeficiency Syndrome in Korea

The clinical features of HIV/AIDS-related ocular manifestations in Korean patients were investigated in this study. Data on 200 consecutive Korean patients diagnosed with AIDS who visited the Seoul National University Hospital from January 2003 to June 2008 were reviewed. Fifty-seven patients (28.5%) had ocular manifestations, and they showed significantly lower CD4+ T cell count than patients without ocular manifestations. Among them, 23 (40.3%) patients showed retinal microvasculopathy, and 22 (38.5%) patients showed cytomegalovirus (CMV) retinitis. Other manifestations included retinal vein occlusion (n = 4), herpes zoster ophthalmicus (n = 4), syphilitic uveitis (n = 2), acute retinal necrosis (n = 1), and progressive outer retinal necrosis (n = 1). The mean CD4+ lymphocyte counts of the patients with retinal microvasculopathy and cytomegalovirus retinitis were 108.5 cells/microL and 69.4 cells/microL, respectively. In conclusion, ocular manifestations including CMV retinitis are common complications in Korean patients with AIDS even in the era of highly active anti-retroviral therapy. Compared to previous reports in western countries, prevalence of CMV retinitis is relatively low and CD4+ lymphocytes count at the time of diagnosis is relatively high.

Paniculite pancreática como a primeira manifestação de doença visceral: relato de caso / Pancreatic panniculitis as the first manifestation of visceral disease: case report

A paniculite pancreática, condição patológica rara, acomete 2-3 por cento dos pacientes com doença do pâncreas. Em 40 por cento dos casos, precede manifestações de doença pancreática. Relata-se caso de paciente feminina, 71 anos, surgimento há 1 mês de nódulos eritematosos nas pernas que evoluíram para ulceração e saída de conteúdo amarelado. Sem sintomas abdominais. A biópsia revelou macrófagos vacuolizados e necrose gordurosa representada por áreas anfofílicas, de material amorfo. Exame laboratorial e TAC demonstraram pancreatite crônica. Presume-se que a liberação de enzimas pancreáticas, tais como a tripsina, pode aumentar a permeabilidade da microcirculação e, então, a lípase e a amilase causariam a necrose de gordura subcutânea observada nas lesões. Na histologia, observam-se "células fantasmas" e paniculite septal de início e posteriormente lobular. O tratamento direciona-se a resolução da doença base.

Pancreatic panniculitis is a rare pathological condition affecting 2-3 percent of patients with pancreatic disease. In 40 percent of cases the condition precedes manifestations of pancreatic disease. We report the case of a 71-year-old female who presented with an erythematous tender node which had appeared one month previously, progressing to ulceration and yellowish exudation. No abdominal symptoms. Biopsy revealed fat necrosis and vacuolated macrophages represented by amorphous amphophilic areas. Laboratory examination and CT scan revealed chronic pancreatitis. It is assumed that release of pancreatic enzymes such as trypsin may enhance the permeability of the microcirculation leading to lipase and amylase causing the subcutaneous fat necrosis observed in the lesions. Histology showed "ghost cells" and, firstly, septal panniculitis, followed later by lobular panniculitis. Treatment focused on resolution of the underlying pancreatic disease.

Modelo experimental para estudo de desenluvamento cutâneo no membro inferior / Experimental model of degloving injury in hind limb

Os desenluvamentos cutâneos são lesões graves e frequentemente há dificuldade para o cirurgião decidir qual o tratamento mais adequado a ser instituído, o reposicionamento e a sutura do retalho ou o desengorduramento do retalho e a enxertia da pele avulsionada. A conduta cirúrgica de reposicionamento e sutura do retalho é mais rápida e simples de ser realizada, mantém as características anatômicas e fisiológicas locais, mas frequentemente evolui com perda parcial ou total do retalho avulsionado. O tratamento cirúrgico de adelgaçamento do retalho desenluvado e enxertia da pele obtida tem a desvantagem de resultar em aspecto estético e protetivo inferiores, mas é o tratamento mais utilizado, devido à maior taxa de integração do enxerto. Medicações com propriedades de aumentar a perfusão do retalho desenluvado podem permitir a conduta cirúrgica de reposicionamento e sutura do retalho ao seu leito original, mantendo as vantagens da cobertura cutânea original e preservando total ou parcialmente a viabilidade do retalho. Para tanto, há necessidade de se desenvolver um modelo experimental para testar medicações com propriedades vasculares. O presente estudo apresenta um modelo animal de desenluvamento cutâneo em membros inferiores de ratos. Os animais foram submetidos ao modelo proposto de desenluvamento de todo membro inferior, resultando em um retalho de fluxo distal, que foi reposicionado ao leito e suturado.

Degloving injuries may be a challenge when it comes to deciding the surgical approach to be used. Repositioning of the flap and suturing is faster and more straight forward, but often leads to total or partial loss of the avulsed flap. Skin flap deffating and grafting of the detached flap have the disadvantages of resulting in poor aesthetic appearance and being less protective, but they have been the most widely used due to the higher rate of graft take. Pharmacological agents with vascular properties that enhance the viability of the reattached flap could be beneficial to patients with degloving injuries. In a way to test drugs with vascular properties is necessary to develop an experimental model. This paper presents an animal model of degloving injury in the hind limb of rats. Rats were subjected to the proposed degloving model of hind limb, resulting in a reverse flow flap. The flap was then repositioned and sutured.

Importância da assistência de enfermagem no manejo de complicação relacionada ao cateter totalmente implantável / The importance of nursing care in managing complications related to fully-implantable catheters / Importancia de la atención de enfermería en el manejo de complicación relacionada al catéter totalmente implantable

Trata-se de relato de experiência com paciente do sexo feminino, 30 anos, com diagnóstico de recaída de Leucemia Mielóide Aguda, submetida à implantação de cateter e que apresentou necrose na ferida cirúrgica. Foram utilizados com sucesso: colagenase, alginato de cálcio e loção oleosa à base de ácidos graxos essenciais. Ficou claro que as complicações relacionadas a cateteres conferem um grande desafio à enfermagem oncológica além de determinarem atraso no tratamento oncológico. A correta tomada de decisão o quanto antes é de extrema importância e evita a retirada precoce do cateter.

This is an experience report of a thirty-year-old female patient, diagnosed with recurrence of Acute Myeloid Leukemia, submitted to catheter implantation and presenting surgical wound necrosis. The following were used with success: collagenase, calcium alginate and oil lotion with essential fatty acids. It was found that the complications related to catheters are a great challenge in oncology nursing besides implying a delay in the oncological treatment. Making a correct decision as soon as possible is extremely important and avoids removing the catheter too soon.

Se trata de un relato de experiencia con paciente de sexo femenino, treinta años, con diagnóstico de recaída de Leucemia Mieloide Aguda, sometida a la implantación de catéter, que presentó necrosis en la herida quirúrgica. Fueron utilizados con éxito: colagenasa, alginato de calcio y loción oleosa a base de ácidos grasos esenciales. Quedó claro que las complicaciones relacionadas a catéteres representan un gran desafío para la enfermería oncológica, además de determinar atraso en el tratamiento oncológico. La correcta toma de decisión y la inmediatez son de extrema importancia y evitan el retirado precoz del catéter.

Microangiopathic Hemolytic Anemia as the First Manifestation of Metastatic Signet Ring Cell Carcinoma of Unknown Origin: A Case Report and Review of Literature / 대한진단검사의학회지

Microangiopathic hemolytic anemia (MAHA) occurs occasionally as a paraneoplastic syndrome in some solid tumors, but MAHA accompanied by signet ring cell carcinoma of an unknown origin is very rare. In this study, we present the case of an 80-yr-old man who was admitted to the hospital because of a 1-month history of lower back pain and dyspnea. He was diagnosed with MAHA on the basis of the laboratory findings that revealed anemia with schistocytes, decreased haptoglobin levels, and a negative direct Coombs' test. Bone marrow examination, which was performed because of the progression of anemia, revealed bone marrow metastases of signet ring cell carcinoma with extensive bone marrow necrosis. However, the primary origin of this signet ring cell carcinoma was not found. When the cause of progressive MAHA is unknown, the possibility of cancer-associated MAHA must be excluded by performing additional tumor workup, including the detection of tumor markers, gastric and colorectal endoscopic examinations, bone marrow examinations, and positron emission tomography-computed tomography or bone scans.

Microangiopathic Hemolytic Anemia as the First Manifestation of Metastatic Signet Ring Cell Carcinoma of Unknown Origin: A Case Report and Review of Literature / 대한진단검사의학회지

Microangiopathic hemolytic anemia (MAHA) occurs occasionally as a paraneoplastic syndrome in some solid tumors, but MAHA accompanied by signet ring cell carcinoma of an unknown origin is very rare. In this study, we present the case of an 80-yr-old man who was admitted to the hospital because of a 1-month history of lower back pain and dyspnea. He was diagnosed with MAHA on the basis of the laboratory findings that revealed anemia with schistocytes, decreased haptoglobin levels, and a negative direct Coombs' test. Bone marrow examination, which was performed because of the progression of anemia, revealed bone marrow metastases of signet ring cell carcinoma with extensive bone marrow necrosis. However, the primary origin of this signet ring cell carcinoma was not found. When the cause of progressive MAHA is unknown, the possibility of cancer-associated MAHA must be excluded by performing additional tumor workup, including the detection of tumor markers, gastric and colorectal endoscopic examinations, bone marrow examinations, and positron emission tomography-computed tomography or bone scans.

Estudo experimental de avulsão parcial de retalho cutâneo em membros inferiores de ratos / Experimental study of partial avulsion of skin flaps in hind limbs of rats

INTRODUÇÃO: Os desenluvamentos cutâneos são lesões graves e frequentemente há dificuldade para o cirurgião decidir qual o tratamento mais adequado a ser instituído, o reposicionamento e sutura do retalho ou o desengorduramento do retalho e enxertia da pele avulsionada. A conduta cirúrgica de reposicionamento e sutura do retalho é mais rápida e simples de ser realizada, mantém as características anatômicas e fisiológicas locais, mas frequentemente evolui com perda parcial ou total do retalho avulsionado. O tratamento cirúrgico de adelgaçamento do retalho desenluvado e enxertia da pele obtida tem a desvantagem de resultar em aspecto estético e protetivo inferiores, mas é o tratamento mais utilizado devido à maior taxa de integração do enxerto. Medicações com propriedades de aumentar a perfusão do retalho desenluvado podem permitir a conduta cirúrgica de reposicionamento e sutura do retalho ao seu leito original, mantendo as vantagens da cobertura cutânea original e preservando total ou parcialmente a viabilidade do retalho. Este estudo avaliou o efeito dos fármacos enoxaparina, pentoxifilina e alopurinol na diminuição da área de necrose de retalhos cutâneos avulsionados através da utilização de um modelo experimental de desenluvamento cutâneo em membros inferiores de ratos. MÉTODOS: Os animais foram divididos em 4 grupos com 25 ratos em cada um deles. Os quatro grupos foram submetidos ao modelo proposto de desenluvamento de todo membro inferior, resultando em um retalho de fluxo distal que foi reposicionado ao leito e suturado. O grupo 1 (avulsão / controle) recebeu 1ml de solução salina via intraperitoneal. O grupo 2 (avulsão / enoxaparina) recebeu 1 ml de enoxaparina (320 UI/kg) via subcutânea. O grupo 3 (avulsão / pentoxifilina) recebeu 1 ml de pentoxifilina (25 mg/kg) via intraperitoneal. O grupo 4 (avulsão / alopurinol) recebeu 1 ml de alopurinol (45 mg/kg) via intraperitoneal. As medicações foram infundidas em dose única imediatamente após...

INTRODUCTION: Degloving injuries may be a challenge when it comes to deciding the surgical approach to be used. Repositioning of the flap and suturing is faster and more straightforward, but often leads to total or partial loss of the avulsed flap. Skin flap deffating and grafting of the detached flap have the disadvantages of resulting in poor aesthetic appearance and being less protective, but they have been the most widely used due to the higher rate of graft take. Pharmacological agents with vascular properties that enhance the viability of the reattached flap could be beneficial to patients with degloving injuries. This study evaluated the effects of enoxaparin, pentoxifylline and allopurinol in reducing necrosis area of avulsed skin flaps through a degloving experimental model in the hind limb of rats. METHODS: Rats were grouped in four groups with 25 rats each. The four groups were subjected to the proposed degloving model of hind limb, resulting in a reverse flow flap. The flap was then repositioned and sutured. Group 1 (avulsion / control) received 1 ml saline solution intraperitoneally. Group 2 (avulsion / enoxaparin) received 1 ml of enoxaparin (320 IU/kg) subcutaneously. Group 3 (avulsion / pentoxifylline) received 1 ml of pentoxifylline (25 mg/kg) intraperitoneally. Group 4 (avulsion / allopurinol) received 1 ml of allopurinol (45 mg/kg) intraperitoneally. Saline solution and medications were infused in single dose after wound closure. The animals were observed until 7 days postoperatively, when they were sacrificed and the degloved flap was removed and analyzed by image processing software. The total area of the avulsed flap and the necrotic area were measured for all animals and statistical analysis was performed between groups. RESULTS: The median total flap area (cm2) was 5.633 for G1, 5.353 for G2, 5.505 for G3 and 5.870 for G4 (p = 0.7460). The median necrotic flap area (cm2) was 3.368 for G1, 1.663 for G2, 2.297 for G3 and 1.888 for...