ABSTRACT
O manejo do nariz bífido na fissura facial de Tessier nº 0 é controverso devido às suas características, como uma ampla abóbada óssea, baixa altura dorsal, excesso de pele, volume de partes moles e cartilagens laterais superiores e inferiores distantes. Técnicas conservadoras de rinoplastia, utilizando instrumentos piezelétricos, podem ser uma boa opção para o tratamento do nariz bífido, pois preservam o teto e as cartilagens laterais superiores e realizam uma osteotomia mais precisa. Relatamos o tratamento de nariz bífido em um menino de 13 anos com fissura facial nº 0, no qual foi realizada a rinoplastia conservadora com auxílio de material piezoelétrico. Dado o excesso de pele e tecidos moles, optou-se por uma abordagem transcutânea completamente externa. Para osteotomias, fraturas laterais sob visão direta assistida por piezo foram realizadas para ter um melhor controle do estreitamento da abóbada óssea. As cartilagens laterais superiores e as válvulas nasais internas foram preservadas e reaproximadas à linha média com suturas em "U" horizontais, a fim de obter projeção da abóbada cartilaginosa. Um grande segmento de pele e tecidos moles foi extirpado após estreitamento da abóbada nasal. Um ano de acompanhamento mostra uma pirâmide óssea estreita, melhor projeção e definição de ponta, mas persistindo com um nariz verticalmente curto. Técnicas conservadoras de rinoplastia, assistidas por piezoelétricas, podem ser uma opção para o tratamento do nariz bífido, exigindo um acompanhamento a longo prazo e um estudo com mais casos.
The bifid nose management in Tessier nº 0 facial cleft is controversial due to its characteristics, such as a wide bone vault, low dorsal height, excessive skin, soft tissues volume, and distant upper and lower lateral cartilages. Conservative rhinoplasty techniques, using piezoelectric instruments, can be a good option for the bifid nose treatment, as they preserve the roof and upper lateral cartilages and perform a more accurate osteotomy. We report the treatment of bifid nose in a 13-year-old boy with facial cleft No. 0, to whom was performed conservative rhinoplasty with the aid of piezoelectric material. Given the excess of skin and soft tissues, a completely external transcutaneous approach was chosen. For osteotomies, lateral fractures under direct piezo-assisted vision were performed to have better control of the bone vault narrowing. The upper lateral cartilages and the internal nasal valves were preserved and brought back to the midline with horizontal "U" sutures to obtain a projection of the cartilaginous vault. A large segment of skin and soft tissue was excised after narrowing the nasal vault. A year of follow-up shows a narrow bone pyramid, better projection, and tip definition, but persisting with a vertically short nose. Conservative rhinoplasty techniques, assisted by piezoelectrics, may be an option for bifid nose treatment, requiring long-term follow-up and a study with more cases.
ABSTRACT
Motor impairment following stroke is a leading cause of disability in adults. Despite advances in motor rehabilitation techniques, many adult stroke survivors never approach full functional recovery. Intriguingly, children exhibit better rehabilitation outcomes when compared to adults suffering from comparable brain injuries, yet the reasons for this remain unclear. A common explanation is that neuroplasticity in adults is substantially limited following stroke, thus constraining the brain's ability to reorganize in response to neurological insult. This explanation, however, does not suffice for there is much evidence suggesting that neuroplasticity in adults is not limited following stroke. We hypothesize that diminished functional recovery in adults is in part due to inhibitory neuronal interactions, such as transcallosal inhibition, that serve to optimize motor performance as the brain matures. Following stroke, these inhibitory interactions pose rigid barriers to recovery by inhibiting activity in the affected regions and hindering recruitment of compensatory pathways. In contrast, children exhibit better rehabilitation outcomes in part because they have not fully developed the inhibitory interactions that impede functional recovery in adults. We suggest that noninvasive brain stimulation can be used in the context of motor rehabilitation following stroke to reduce the effects of existing inhibitory connections, effectively returning the brain to a state that is more amenable to rehabilitation. We conclude by discussing further research to explore this hypothesis and its implications