RESUMEN
To suppress the risk inherent in laryngeal microsurgery performed with a CO2 laser beam, the authors suggest to use a reinforced silicone endotracheal tube, the cuff of which is protected by a silicone plus aluminium powder shield. The resistance of silicone to fire is augmented during laser shots by a nitrogen flow on the upper side of the shield at the rates of 2 l/min in patients breathing air and 30 l/min in patients give oxygen.
Asunto(s)
Intubación Intratraqueal/instrumentación , Laringe/cirugía , Terapia por Láser , Adolescente , Adulto , Anciano , Dióxido de Carbono , Niño , Femenino , Humanos , Neoplasias Laríngeas/cirugía , Laringitis/cirugía , Masculino , Microcirugia , Persona de Mediana Edad , Pólipos/cirugíaRESUMEN
The authors report a new ENT site for a hemangiopericytoma in the maxillary sinus. The authors review the literature and recapitulate the histological characteristics, the main ENT localizations, and the present therapeutic attitude to this lesion.
Asunto(s)
Hemangiopericitoma/patología , Seno Maxilar , Neoplasias de los Senos Paranasales/patología , Adulto , Diagnóstico Diferencial , Hemangiopericitoma/cirugía , Humanos , Masculino , Seno Maxilar/patología , Seno Maxilar/cirugía , Neoplasias Nasofaríngeas/patología , Recurrencia Local de Neoplasia , Neoplasias de los Senos Paranasales/cirugíaRESUMEN
In 16 human face dissections under the operative microscope, the authors recall the classical anatomy of perioral muscles. Instead of the 3 muscles around the nostrils, they prefer to discern two layers: deep and superficial. The subnasal region can similarly be dissociated. Resuming the commissural node study they insist upon the peculiar role of the platysma muscle and its expansions, and upon the tight imbrication of buccinator and orbicularis oris muscles.
Asunto(s)
Músculos Faciales/anatomía & histología , Mejilla , HumanosRESUMEN
The pisiform is the only moving structure of the canalis carpi. In the power grip, it undergoes a posterior and medial movement, limited by the pisohamate ligament. This motion is indispensable for a good prehension. The strength of the pisohamate ligament effectively balances the dislocation tendency the flexors carpi ulnaris exert on the pisiform.