NUBERTO HOPFGARTNER TEIXEIRA
Projetos de Pesquisa
Unidades Organizacionais
LIM/04 - Laboratório de Microcirurgia, Hospital das Clínicas, Faculdade de Medicina
4 resultados
Resultados de Busca
Agora exibindo 1 - 4 de 4
- Lipoabdominoplasty combining a wide undermining of the upper abdomen with complete body liposuction(2016) COSTA, M. P.; FIORAVANTI, A. B.; TEIXEIRA, N. H.; BARREIRO, G. C.Introduction: The evolution of techniques in abdominal surgery has lowered postoperative morbidity and complication rates and has continually encouraged surgeons to search for new innovations. This study describes an abdominoplasty technique that combines a wide undermining (2-3 cm lateral to the external border of the rectus muscles) with complete body liposuction, not preserving the Scarpa’s fascia. Methods: From January 2005 to May 2011, abdominoplasty associated with liposuction was performed on 203 patients with an average age of 45 years. Seventy-seven (37.93?%) patients were smokers. Results: The follow-up period ranged from 3 months to 5 years and 3 months (mean of 2 years). No patient showed suprapubic skin necrosis, infection, hematomas, or thromboembolism. Two patients showed seroma, eight hypertrophic scars and six dog ear scar revision. Conclusion: The technique presented in this study has a low complication rate and achieves a more extensive improvement of the body contouring. © Springer International Publishing Switzerland 2016.
- Combined polyglycolic acid tube and autografting versus autografting or polyglycolic acid tube alone. A comparative study of peripheral nerve regeneration in rats(2015) COSTA, Marcio Paulino; TEIXEIRA, Nuberto Hopfgartner; LONGO, Marco Vinicius Losso; GEMPERLI, Rolf; COSTA, Heloisa Juliana Zabeu RossiPURPOSE: To compare sciatic nerve regeneration in rats using three different techniques of repair. METHODS: Fifteen isogonics rats were divided into three groups according to the method used to repair a 5-mm long defect created in the sciatic nerve: autogenous graft (Group A), polyglycolic acid tube (PGAt) (Group B), and of the association of PGAt with the graft (Group C). Histological analysis, regenerated myelinated axon number count and functional analysis were used to compare after six weeks. RESULTS: There was no difference in fiber diameter and degree of myelinization presented by Groups A, B and C. Group B presented the lowest number of regenerated axons. The groups did not display any significant functional difference after walking track analysis (p<0.05). CONCLUSION: No differences between the three groups in terms of functional recovery, although there were histological differences among them.
- COMPARISONS OF THE RESULTS OF PERIPHERAL NERVE DEFECT REPAIR WITH FIBRIN CONDUIT AND AUTOLOGOUS NERVE GRAFT: AN EXPERIMENTAL STUDY IN RATS(2016) LONGO, Marco Vinicius Losso; FARIA, Jose Carlos Marques De; ISAAC, Cesar; NEPOMUCENO, Andre Coelho; TEIXEIRA, Nuberto Hopfgartner; GEMPERLI, RolfIntroduction: The standard treatment for nerve defects is nerve autograft. There is no conduit available that provides the same regenerative capacity of nerve autograft. This study evaluated the histological and functional recovery of nerve defects treated with fibrin conduit in comparison to the nerve autograft, in a rat model. Method: A sciatic nerve injury model (10-mm defect) was performed in 20 Wistar rats, nerve defect was reconstructed using a fibrin conduit (n=10). A nerve autograft was used as control (n=10). The walking behavior was measured by footprint analysis at 4, 8, and 12 weeks and sciatic function index was determined. After 12 weeks, histological analysis was performed to evaluate the regenerated nerve and measured axonal density. The triceps surae muscle weight was also evaluated. Results: The fibrin conduit group showed less improvement in walking behavior compared to nerve autograft (-53 +/- 2 vs. -36 +/- 2; P<0.001 at 12 weeks). The fibrin conduit group presented axonal density of 40.0 axons/10.995 mu m2 and the nerve autograft group had 67.2 axons/10.995 mu m2 (P<0.001). The triceps surae muscle weight ratio of the fibrin conduit group was 41 +/- 3% versus 71 +/- 4% of the nerve autograft group (P<0.001). Conclusion: The fibrin conduit could be used for nerve reconstruction following peripheral nerve injury in the rat model. However, the functional recovery in the fibrin conduit repair group was worse than that in nerve autograft group and the nerve repair with the fibrin conduit has less myelinated fibers when compared to the repair with nerve autograft. (C) 2015 Wiley Periodicals, Inc.
- Protocolo de aplicação bilateral de toxina botulínica tipo A para evitar assimetria no tratamento de espasmo hemifacial(2015) SALLES, ALESSANDRA GRASSI; TEIXEIRA, NUBERTO HOPFGARTNER; MATTOS, FABIO TEIXEIRA BELFORT; COSTA, MARCIO PAULINO DA; FERREIRA, MARCUS CASTRO; GEMPERLI, ROLFABSTRACT Introduction: Hemifacial spasm (HFS) is characterized by the involuntary tonic-clonic movement of the muscles of the hemiface. It is usually treated with botulinum toxin (BTX). The classically described unilateral application of BTX results in an asymmetry similar to facial paralysis. The aim of this study was to standardize the treatment of HFS by applying BTX bilaterally to prevent the occurrence of iatrogenic facial asymmetry. Methods: The outcomes of 66 applications in 15 patients were analyzed according to the protocol of the facial paralysis service, to which pretarsal sites were added on the HFS side. On reassessment 15 days later, a complementary dose was administered to patients who exhibited some residual degree of spasm or asymmetry with the aim of determining the dose required to achieve satisfactory spasm control without causing facial asymmetry. Results: The total mean dose was 20.2 U at the contralateral side and 28.4 U at the spasm side (a total dose of 48.6 U per application). There was a significant difference between the doses applied to the zygomaticus, orbicularis oris, and orbicular oculi muscles on each hemiface. Conclusions: The proposed bilateral BTX application technique was effective in controlling HFS and prevented iatrogenic asymmetry. In general, application should be performed at a ratio of 1:1.5 U in the orbicularis oculi (lateral portion) and 1:2 U in the orbicularis oris. In the remaining muscles, the same dose should be administered on both sides and an additional dose can be applied 15 days later if some degree of spasm is present. The pretarsal region of the orbicularis oculi muscle is the only area for which BTX application on the healthy side is unnecessary.