The nasal cavity possesses many advantages as a site for drug delivery, such as, ease of administration, applicability for long term treatments and a large surface area for absorption. One important limiting factor for nasal drug delivery is the limited time available for absorption within the nasal cavity due to mucociliary clearance. Several drug delivery systems including different kinds of ...

BACKGROUND The purpose of this study was to compare temperatures measured at three different sites where a nasopharyngeal temperature probe is commonly placed. METHODS Eighty elective abdominal surgical patients were enrolled. After anesthesia induction, four temperature probes were placed at the nasal cavity, upper portion of the nasopharynx, oropharynx, and the esophagus. The placement of t...

Intensity-modulated proton therapy (IMPT) is expected to improve treatment results with fewer side effects than other proton therapies. The purpose of this study was to evaluate the tumor sites for which IMPT was effective under the same beam calculation conditions by planning IMPT for typical cases treated with passive scattering proton therapy (PSPT). We selected 16 cases of nasal cavity, lun...

The treatment of deformities of the nasal septum and the hypertrophy of the turbinates is necessary because in many of these cases the deformity is of exclusive respiratory cause, in which case the patient will be submitted to maxillary impaction to correct this vertical skeletal growth pattern. When impacting the maxilla, it is a fact that the nasal cavity will be diminished, because when the ...

Respiratory epithelial adenomatoid hamartoma (REAH) is a rare benign lesion in nasal cavity. We report two cases of REAH of the nasal cavity arising from nasal septum. The etiology of REAH is unknown although inflammation may induce gland proliferation observed in hamartomas. One of our cases was associated with nasal polyposis. REAH is a self-limiting disease, so it is important to differentia...

OBJECTIVE Complete separation of upper and lower respiratory tract after total laryngectomy results in loss of physiological nasal functions and presence of "unconditioned" inspired air in lower airways. Aim of this study is evaluating the presence of a microbial colonization of nasal cavities and trachea in laryngectomized long-term survivors. METHODS Twenty-five laryngectomized patients und...

Introduction: Ewing sarcoma (ES), which is described as diffuse endothelioma of the bone, is divided into osseous and extraosseous Ewing sarcoma (EES) mostly affecting children and adolescents. It is a rare, aggressive, and poorly differentiated small blue round cell tumor that seldom affects the head and neck regions.   Case Report: Herein, we reported a 46-year-old ma...

The treatment of deformities of the nasal septum and the hypertrophy of the turbinates is necessary because in many of these cases the deformity is of exclusive respiratory cause, in which case the patient will be submitted to maxillary impaction to correct this vertical skeletal growth pattern. When impacting the maxilla, it is a fact that the nasal cavity will be diminished, because when the ...

The treatment of deformities of the nasal septum and the hypertrophy of the turbinates is necessary because in many of these cases the deformity is of exclusive respiratory cause, in which case the patient will be submitted to maxillary impaction to correct this vertical skeletal growth pattern. When impacting the maxilla, it is a fact that the nasal cavity will be diminished, because when the ...