RESUMO
Sagittal application of a titanium mini screw in the coronoid process at the time of coronoidotomy is a very efficient method for easy removal.
Assuntos
Parafusos Ósseos , Mandíbula/cirurgia , Osteotomia/métodos , Adulto , Fios Ortopédicos , Feminino , Humanos , Hiperplasia , Mandíbula/patologia , Músculo Masseter/patologia , Músculo Masseter/cirurgia , Osteotomia/instrumentação , Titânio , Trismo/cirurgiaRESUMO
We investigated the effect of cimetidine and histamine on splanchnic circulation in the dogs. Hepatic artery, superior mesenteric artery and portal vein were cannulated to measure each blood pressure. Each blood flow was evaluated utilizing electromagnetic blood flowmetry. And vascular resistances were calculated by measured blood pressure and blood flow. Cimetidine, histamine, 2-PEA (H1-agonist), dimaprit (H2-agonist) and mepyramine maleate (H1-antagonist) were given by intravenous bolus to the dogs. Histamine caused vasodilation of hepatic artery but vasoconstriction of superior mesenteric artery and these effects were similar to the effect of 2-PEA. These hemodynamic responses to histamine were inhibited by H1-antagonist but not inhibited by H2-antagonist. Cimetidine produced dilatation of hepatic artery but constriction of portal vein, superior mesenteric artery and reduced total hepatic blood flow. These effects were not inhibited by H1-antagonist. We concluded that cimetidine did not stimulated H1, H2-receptors rather than had the own effects and that H1-receptor was superior to H2-receptor on splanchnic circulation in the dogs.
Assuntos
Cimetidina/farmacologia , Antagonistas dos Receptores H2 da Histamina/farmacologia , Histamina/farmacologia , Circulação Esplâncnica/efeitos dos fármacos , Animais , Pressão Sanguínea/efeitos dos fármacos , Dimaprit/farmacologia , Cães , Artéria Hepática/efeitos dos fármacos , Infusões Intravenosas , Maleatos/farmacologia , Artérias Mesentéricas/efeitos dos fármacos , Receptores Histamínicos H1/fisiologia , Resistência Vascular/efeitos dos fármacos , Vasoconstrição/efeitos dos fármacos , Vasodilatação/efeitos dos fármacosRESUMO
We evaluated the use of operation by single-puncture arthroscopy in 55 patients (62 joints) with locked temporomandibular joints (TMJ). We used a single-channel thin-fibre arthroscope (M & M Co., Tokyo, Japan) and a holuminium yttrium aluminium garnet (Ho:YAG) laser (Lumenis Co., Tokyo, Japan). The preoperative mean (SD) maximum interincisal measurement (distance between the edge of the lower and upper incisor) was 26.0 (4.9) mm, and it was increased by 15.0mm 12 weeks after operation. The preoperative mean (SD) visual analogue score (VAS) was 6.3(2.0), and after 12 weeks it had been reduced to 1.6 (1.1). There were no other complaints. Single-puncture arthroscopy with the Ho:YAG laser is simple and useful. There were no other complications, and the results obtained were satisfactory.