Computerized Dead-Space Volume Measurement of Face Masks Applied to Simulated Faces.

Background: The dead-space volume (VD) of face masks for metered-dose inhaler treatments is particularly important in infants and young children with asthma, who have relatively low tidal volumes. Data about VD have been traditionally obtained from water displacement measurements, in which masks are held against a flat surface. Because, in real life, masks are placed against the face, VD is likely to differ considerably between masks depending upon their contour and fit.

Abrupt tonsillar hemorrhage from a metastatic hemangiosarcoma of the breast: case report and literature review.

We describe a case of primary breast hemangiosarcoma with tonsillar metastasis that manifested as a profuse oropharyngeal hemorrhage. The patient was a 54-year-old woman who presented to the emergency department with oral bleeding. A thorough examination revealed a distorted morphology of the left tonsil and a hemorrhage originating from it.

Selective embolization for head and neck vasculopathies.

Introduction: Selective, transarterial embolization of vascular lesions through angiographic catheters, which in superficial vasculopathies is often accompanied by intralesional local administration of sclerosing agents, has been used for more than 65 years. However, the reported experience with this therapeutic modality for head and neck lesions is rather limited.

Methods And Materials: In the current study we describe our experience with all 12 patients having major head and neck vasculature pathologies who were admitted and treated by selective embolization in our institution during a 5-year period.