RESUMO
Considering the proved interaction of fibrin with fibroblasts and the seemingly decisive role of structural and functional changes ("modulation") of these cells in the evolution of Dupuytren's contracture, research has been carried out in order to investigate the fibrinolytic capacity and the possible presence of fibrin/fibrinogen in the palmar fascia of subjects operated upon for Dupuytren's Disease. Fibrin/fibrinogen were detected by a direct immunofluorescence technique and fibrinolytic activity was assessed by a fibrin plate method. A remarkable decrease of fibrinolytic activity and the presence of fibrin/fibrinogen were observed in small nodules in the early stage of disease, whereas large nodules showed a high amount of plasminogen activator enzymes. Small nodules seem to form and increase by progressive adhesion of fibroblasts to the polymerizing fibrin, while high fibrinolytic activity of large nodules probably results from "modulation" of many fibroblasts into contractile myofibroblasts and could therefore be considered as a biochemical sign of the evolutionary phase of Dupuytren's contracture.
Assuntos
Contratura de Dupuytren/metabolismo , Fáscia/análise , Fibrina/análise , Fibrinogênio/análise , Fibrinólise , Adulto , Contratura de Dupuytren/fisiopatologia , Mãos , Humanos , Pessoa de Meia-IdadeRESUMO
Liver histobiopsy was carried out in 21 patients with burns of from 25 to 75 percent, between the 2nd and 125th day following trauma. The most frequent type of lesion encountered was albuminoid degeneration and hydropic ballooning of the cytoplasm to the point that the parenchyma assumed a "vegetable" appearance. No steatosis intervenes until the 6th-8th day after the burn and where it was not present previously, is a sign that the patient's condition is worsening. Total, or nearly total, disappearance of glycogen from the sections is an indication that the patient is worsening; in effect in patients who died, biopsy carried out shortly beforehand revealed the extreme paucity of PAS-positive material in the hepatocytes.
Assuntos
Queimaduras/patologia , Fígado/patologia , Adulto , Idoso , Biópsia , Queimaduras Químicas/patologia , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: The absence or hypoplasia of the vagina is a frequent finding in Rokitansky-Mayer-Küster-Hauser syndrome. METHODS: A group of 13 patients with Rokitansky-Mayer-Küster-Hauser syndrome were treated between 1982 and December 2001 at the Plastic Surgery Department of C.T.O. (Turin) and the 2nd Obstetrics-Gynecology Clinic of Turin University. Surgery was the proposed therapy in all patients, using a modified version of the McIndoe technique. RESULTS: In this series, the cytological tests of neovaginal tissue carried out one year after surgery showed a syndrome of slight atrophy in 8 cases, but this was not sufficient to impede the sexual activity of these patients. Two patients were lost in the follow-up; 3 patients declared that they were reasonably satisfied with their sex life, whereas the remaining 8 reported a normal sex life. CONCLUSIONS: The treatment of choice for complete vaginal agenesia is a neovagina using the skin graft method. This technique produces excellent anatomical results, especially in young patients, even without regular dilatation or frequent sexual relationships. The only drawback of this method is that the vagina tends to retract in some patients, a problem that has been largely solved by the most recently proposed surgical variants.
Assuntos
Anormalidades Múltiplas , Procedimentos Cirúrgicos em Ginecologia , Laparoscopia , Estruturas Criadas Cirurgicamente , Vagina/anormalidades , Vagina/cirurgia , Adolescente , Adulto , Feminino , Fertilidade , Seguimentos , Humanos , Síndrome , Fatores de TempoAssuntos
Queimaduras/tratamento farmacológico , Neomicina/uso terapêutico , Dermatopatias/tratamento farmacológico , Úlcera Cutânea/tratamento farmacológico , Testosterona/uso terapêutico , Ferimentos e Lesões/tratamento farmacológico , Adulto , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeAssuntos
Lesões por Radiação/cirurgia , Radiodermite/cirurgia , Radioterapia , Transplante de Pele , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeAssuntos
Transplante Ósseo , Fraturas Ósseas/complicações , Osteíte/cirurgia , Osteomielite/cirurgia , Transplante de Pele , Adolescente , Adulto , Traumatismos do Braço/cirurgia , Doença Crônica , Traumatismos Craniocerebrais/cirurgia , Traumatismos do Pé , Traumatismos da Mão/cirurgia , Humanos , Traumatismos da Perna/cirurgia , Masculino , Osteíte/etiologia , Osteomielite/etiologia , PrognósticoAssuntos
Traumatismos da Perna/cirurgia , Transplante de Pele , Abdome , Adulto , Humanos , Masculino , Métodos , Tórax , Transplante AutólogoAssuntos
Mama/cirurgia , Mastectomia , Cirurgia Plástica , Adulto , Neoplasias da Mama/cirurgia , Feminino , Humanos , Pessoa de Meia-IdadeRESUMO
Increased amounts of plasminogen activator enzymes were found in the large Dupuytren's nodules in the so-called active phase of the disease. A prospective study in 15 patients who had operations investigated possible relationships between fibrinolytic capacity of the palmar nodules (assessed by the fibrin plate method) and the recurrence of contracture. There were substantial analogies and suggestive connections with the results of previous electron microscopic studies. Combined with the presence of myofibroblasts, the high increase of plasminogen activator enzymes in the fascial nodules may be regarded as a predictive marker for possible recurrence after surgical treatment of Dupuytren's contracture.
Assuntos
Contratura de Dupuytren/patologia , Fáscia/patologia , Deformidades Adquiridas da Mão/patologia , Ativadores de Plasminogênio/metabolismo , Complicações Pós-Operatórias/patologia , Adulto , Idoso , Contratura de Dupuytren/cirurgia , Feminino , Fibrinólise , Deformidades Adquiridas da Mão/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , RecidivaRESUMO
The use of an extensive fascio-cutaneous flap with skin from the thorax and abdomen, starting from the lateral and subscapular area behind the posterior axillary line and going down to the homolateral pubic and inguinal area, is described. This type of flap is used for repair of very extensive skin loss on the thorax when free grafts, the only alternative, are unsuitable because of the need for more effective and definite covering.