Michael C Neuenschwander

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Few data exist regarding the relationship between the location of injuries and the presence of domestic violence. This study of 127 people at an inner-city hospital emergency department found that most patients had head, neck and facial injuries. Although only 23 percent of patients with such injuries were victims of domestic violence, 94.4 percent of(More)
Penetrating middle ear injury can result in hearing loss, vertigo, and facial nerve injury. We describe the cases of 2 children with penetrating trauma to the right ear that resulted in ossicular chain disruption; one injury was caused by cotton-tipped swabs and the other by a wooden matchstick. Symptoms in both children included hearing loss and otalgia;(More)
PURPOSE In earlier studies, it has been documented that maxillary gingival blood flow (GBF) decreased significantly during the intraoperative course of a Le Fort I osteotomy. It was not clear, however, whether the observed decrease in GBF was caused by the osteotomy or by the use of local anesthetic with vasoconstrictor (LA + V). The purpose of this study(More)
Intraoperative maxillary blood flow was measured using laser Doppler flowmetry (LDF) in two groups of patients undergoing orthognathic surgery. Group 1 (n = 14) consisted of patients undergoing Le Fort I osteotomy and group 2 (n = 8) consisted of patients undergoing isolated mandibular osteotomies. In group 1, the mean gingival blood flow (GBF) decreased(More)
Botulinum toxin has several important properties that make it an ideal chemical denervator. These include its high degree of specificity for the neuromuscular junction, its ability to induce temporary and reversible denervation, and its limited degree of side effects and complications. Botulinum toxin is being used safely in a wide variety of clinical(More)
PURPOSE Controversy exists regarding management of the descending palatine artery (DPA) during Le Fort I osteotomy. Some surgeons advocate preserving the DPA, and others ligate the vessels. The purpose of this study was to evaluate maxillary gingival blood flow (GBF) during Le Fort I osteotomy in a sample of patients with and without ligation of the DPA. (More)
Vocal fold scar disrupts the mucosal wave and interferes with glottic closure. Treatment involves a multidisciplinary approach that includes voice therapy, medical management, and sometimes surgery. We reviewed the records of the first eight patients who underwent autologous fat implantation for vocal fold scar. Information on the etiology of scar, physical(More)
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