If conservative treatment is not effective, surgical treatment should be considered 8 . Studies indicate that ligation of the thoracic duct and pleurodesis are efficient alternatives for resolution of chylothorax 9 .Recently, thoracic duct ligation through video-assisted thoracic surgery has been used in patients who did not respond to conservative treatment. Kirby et al 11 describe this conduct as less painful and with fewer postoperative complications.Pereira et al 12 describe the use of lymphatic ligation for the treatment of postoperative chylopericardium. However, in our country, ligation of the thoracic duct for the treatment of postoperative chylothorax is still a rare procedure, and at what point the conservative treatment should be replaced by postsurgical treatment is still controversial. Thus, our study evaluates the initial results of ligation of the thoracic tract in 4 patients with chylothorax unresponsive to conservative treatment. Case ReportsCase 1 -A four-year-old-male patient with congenital cardiopathy and cyanosis at birth with a previous history of pulmonary atresia without interventricular communication, single left ventricle, hypoplastic right ventricle with sinusoids, left pulmonary artery stenosis, and coronary artery cavitary fistulas. At 5 days of life, he underwent atrial septotomy with the Rashkind procedure, and after 2 days, he underwent a modified left Blalock Taussig shunt procedure. At 4 years old, he underwent a bidirectional Glenn operation with maintenance of the previous Blalock shunt, evolving, in the postoperative period with low cardiac output maintained with vasoactive drugs. He was discharged on the 5th postoperative day, when minor pleural effusion was suspected. A chest X-ray was indicated.After chylothorax was diagnosed, pleural drainage was started. Parenteral nutrition and fasting were introduced after 1 week. The patient evolved with significant persistence of pleural drainage. Nineteen days after the initial In children, chylothorax occurs mainly after cardiac and thoracic surgeries. One of the recommended postsurgery treatments is ligation of the thoracic tract, when all other conservative treatments have failed. We report 4 cases of chylothorax in patients who were successfully treated with this approach, which resulted in a decrease in pleural drainage without recurrent chylothorax.Chylothorax refers to the presence of lymphatic fluid in one or both pleural spaces, secondary to leakage in the thoracic duct or one of its main tributaries 1 . Quinke 2 first described traumatic chylothorax in 1875, after rupture of the thoracic duct.When chylothorax is not treated, the risk of death is high, with rates above 45% 3 , requiring, in the majority of the cases, aggressive treatment.According to DeMeester 4 , chylothorax may be according to its cause, either congenital, traumatic, neoplastic, or multiple causes. Among the traumatic causes surgical procedures with a thoracic approach may cause thoracic duct lesions, leading to the development of chylothorax. Postoperat...
RESUMO: Objetivo:A isquemia prolongada leva a alterações na microcirculação tecidual e liberação de radicais livres do oxigênio conhecidas como fenômeno de não reperfusão. Foi testado um modelo experimental de reimplante de membro após isquemia quente e os efeitos do fármaco alopurinol e da terapia com oxigênio hiperbárico. Método: Foram realizadas amputações com preservação dos vasos e nervos dos membros posteriores direitos em 95 ratos. Os grupos modelos M1, M2, M3, M4 e M5 foram submetidos à isquemia quente de 0, 2, 4, 6 e 8 horas. As taxas de viabilidade dos membros isquêmicos após sete dias de avaliação foram 100%, 80%, 63,6%, 50% e 20%. Os grupos experimentais E1 e E2 foram tratados, respectivamente, com alopurinol e terapia com oxigênio hiperbárico após isquemia de 6 horas. As taxas de viabilidade foram 70% e 30%. Os resultados foram analisados estatisticamente pelo teste do Qui-quadrado. Resultados: Os grupos M1, M2, M3, M4 e M5 foram estatisticamente diferentes entre si exceto os grupos M3 e M4. E1 resultou em uma viabilidade de membros maior que M4 e E2 resultou em uma viabilidade de membros menor que M4(resultados estatisticamente significantes). Conclusões: Os resultados sugerem que a administração do alopurinol após isquemia do membro por 6 horas aumenta a taxa de viabilidade dos membros isquêmicos, e a terapia com oxigênio hiperbárico diminuiu a viabilidade dos membros isquêmicos (Rev. Col. Bras. Cir. 2005; 32 (2): 64-68). ABSTRACT Background: Prolonged ischemia leads to alterations in tissue microcirculation and oxygen free radicals production. This event is called no reflow phenomenon and its management is a challenge to the surgeon dealing with replantation. It was tested a replantation model after warm ischemia in rats and the effectiveness of allopurinol and hyperbaric oxigen therapy. Methods:Amputation with preservation of vessels and nerves of the right hind limb was proceeded in 95 rats. The groups M1, M2, M3, M4 and M5 were submitted to 0, 2, 4, 6 and 8 hours of ischemia. The limbs were observed for seven days and the survival limb rates in each group were 100%, 80%, 63,6%, 50% and 20% respectively. M4 was elected control for experimental groups. The groups E1 and E2 were submitted to 6 hours of ischemia and were treated with allopurinol and hyperbaric oxigen therapy. The survival limb rates were 70% and 30% respectively. Results: M1, M2, M3, M4 and M5 were statistically different except for M3 and M4. E1 had a better limb survival than M4. E2 had a worse limb survival than M4. Conclusions: Our results suggest that the administration of allopurinol may be helpful to improve limb salvage after ischemia and hyperbaric oxigen therapy may not be helpful and even can be harmful to ischemic limbs.
ObjectivesRetrospective evaluation of cases of limb replantation after avulsion injuries. Evaluation of the techniques and tactics used, that contributed to success and good functional results.MethodsForty-three patients' records were assessed. All the cases had been submitted to limb replantation after avulsion injuries.ResultsThe majority of the cases were young men. The most common injury was to the thumbs. The surgical techniques and tactics used were: nerve grafting, vein grafting, transposition of the digital vessels, limb shortening, and heterotopic replantation. The most commonly used technique was vein graft. The limb survival rate was high (93%), as was patient satisfaction.ConclusionReplantation after avulsion injury depends on the correct diagnosis of the limb viability and the use of appropriate surgical techniques and tactics for each case. The experience of the team of surgeons and a good hospital structure are essential for good results. There are few articles in medical literature about the indications, techniques and results of limb replantation after avulsion injuries. We believe that this retrospective evaluation can bring new information and contributions to the correct management of this highly complex situation. Level of evidence IV, Case Series.
Objective: To investigate, through magnetic resonance imaging, the occurrence of fatty degeneration of the trapezius in adult patients undergoing nerve transfer procedure, using the spinal accessory nerve. Methods: A total of 13 patients meeting the criteria of unilateral brachial plexus injury and more than one year of postoperative care after nerve transfer surgery underwent an MRI scan of the trapezius. A T1-weighted 3D sequence was used, with the IDEAL technique using 8.0 mm cut thickness, 8.0 mm cut spacing, TR of 100 ms, TE of 3.45 ms, flip angle of 10 degrees, 20 cuts, on the sagittal plane. The images of the upper, transverse and lower parts of the trapezius muscle were then classified according to the degree of fatty degeneration, compared with the contralateral side, using the Goutallier score. Results: For the upper trapezius there was a change of the degeneration state in 23% (p = 0.083), for the transverse section there was a change in 84.6% (p = 0.003), for the lower one there was a change in 92.3% (p = 0.002). Conclusion: The upper trapezius did not undergo significant degeneration after transfer. The lower and transverse trapezius suffered fatty degeneration in most patients, indicating severe functional impairment. Level of Evidence IV, Case series.
BACKGROUNDImmunosuppressed patients are at high risk for opportunistic infections. We report a case of a 40-year old man with MALT lymphoma and systemic lupus erythematosus (SLE)-like nephritis, with a history of several infectious complications, who presented with a chronic left hand flexor tenosynovitis, diagnosed as atypical mycobacteriosis.
As fraturas distais do rádio são as mais freqüentes do membro superior. São classificadas em estáveis e instáveis. As instáveis requerem tratamento cirúrgico. Não está definido na literatura qual o melhor método de fixação, mas existe atualmente uma tendência à utilização das placas com parafusos bloqueados. Um dos aspectos técnicos importantes é o posicionamento dos parafusos distais junto ao osso subcondral, proporcionando suporte mais adequado. A avaliação da localização desses parafusos é feita com radioscopia e radiografias, mas freqüentemente existem dúvidas quanto ao correto posicionamento. Os objetivos deste estudo são: avaliar se é possível determinar com precisão por meio de radiografias, a localização dos parafusos distais no rádio e se a experiência do avaliadorinfluencia nesta análise. Foram utilizados punhos de cadáveres. Cada rádio recebeu três parafusos junto à superfície articular distal. Por meio de incidências radiográficas clássicas e anguladas, médicos especialistas e não-especialistas em cirurgia da mão avaliaram a posição de cada parafuso, se intra ou extra-articular. Os índices de acerto foram submetidos à análise estatística.As radiografias provaram ainda ser um bom método de avaliação, não havendo melhora da precisão na localização dos parafusos com as incidências anguladas. A experiência profissional do avaliador não teve influência nos resultados.
A isquemia prolongada leva a alterações na microcirculação tecidual e liberação de radicais livres do oxigênio conhecidos como fenômeno de não reperfusão. Foi realizado amputação com preservação dos vasos e nervos do membro posterior direito em 110 ratos. Os grupos GM1, GM2, GM3, GM4 e GM5 foram submetidos a isquemia quente de 0, 2, 4, 6, 8 horas. As taxas de sobrevida dos membros isquêmicos após 7 dias de avaliação foram 100%, 80%, 63,6%, 50%, 20%. Os grupos GE1, GE2 e GE3 foram tratados com estreptoquinase, alopurinol e terapia com oxigênio hiperbárico após isquemia de 6 horas. As taxas de sobrevida foram 66,7%, 70% e 30%. Os resultados foram analisados estatisticamente pelo teste do Qui-quadrado e considerados significantes quandop<0,05. Os resultados sugerem um aumento significativo da sobrevida de membros isquêmicos após utilização doalopurinol e estreptoquinase. A terapia com oxigênio hiperbárico diminuiu significativamente a sobrevida dos membros isquêmicos.
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