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Cryptococcosis in México is caused by both species of the Cryptococcus species complex i.e., Cryptococcus neoformans and C. gattii. The current study was aimed to determine genetic variability of 72 Mexican clinical isolates using PCR-fingerprinting with the primer M13. PCR fingerprinting revealed 55 VNI, five VNII, three VNIII, one VNIV, two VGI, two VGII,(More)
This study examines the temporal pattern of hair cell loss in the chick basilar papilla following ten days of gentamicin administration in hatchling chicks. Chicks were subsequently killed at ages 11, 18, 25, and 32 days. The basilar papillae were embedded in plastic and serially sectioned for light microscopic analysis. Hair cell counts were obtained at(More)
OBJECTIVES Floseal, a novel hemostatic sealant composed of collagen-derived particles and topical bovine-derived thrombin, is applied as a high-viscosity gel for hemostasis. This study is a prospective, randomized, controlled clinical trial of Floseal compared with nasal packing in patients with acute anterior epistaxis. STUDY DESIGN Institutional review(More)
PROBLEM ADDRESSED Floseal is a novel matrix hemostatic sealant composed of collagen-derived particles and topical bovine-derived thrombin. It is applied as a high-viscosity gel for hemostasis and has been clinically proven to control bleeding. This study is a prospective, randomized, controlled clinical trial of Floseal sealant compared to traditional(More)
A number of histopathologic parameters in squamous cell carcinoma of the oral cavity and oropharynx have been identified as having a statistically significant correlation with regional lymph-node metastasis. These parameters have been inconsistent and not readily reproducible. In an attempt to confirm these parameters, a retrospective analysis of 22(More)
The detrimental effects of transfusion have been documented--particularly by surgical oncologists, who believe transfusion-induced immunosuppression increases the incidence of recurrence and infectious complications. We examined this relation in surgical oncology of the head and neck. After meeting strict inclusion criteria, 104 patients were entered into(More)
OBJECTIVE To present a case report and to propose an anatomic explanation for a rare complication of tonsillectomy, severe dysphagia caused by bilateral paralysis of the glossopharyngeal nerve. STUDY DESIGN Retrospective case review and prospective cadaveric dissection. METHODS The medical record and radiologic data were reviewed from a patient who had(More)
A variety of hemostatic agents and techniques have been used in an attempt to reduce intraoperative blood loss and postoperative bleeding in tonsillectomy. The efficacy of most of these substances and techniques has been judged primarily on clinical impressions. Because of the paucity of prospective studies, a randomized, prospective, double-blind study,(More)
Forty-four children who underwent adenotonsillectomy for obstructive sleep apnea (OSA) were studied. The diagnosis was confirmed polysomnographically. Patients with other medical problems or complications of OSA were excluded. The overall complication rate was 32%. Significant airway complications occurred in 16%. Factors associated with development of(More)
BACKGROUND The objective of this study was to determine the extent of interest in international electives among prospective otolaryngology residents and to determine whether the availability of international electives affected students' interest in ranking a particular residency program. METHODS A 3-part survey was given to all medical students enrolled(More)