2,985 research outputs found
Possible Skull Base Erosion After Prolonged Frontal Sinus Stenting
Frontal sinus stenting is widely used with the goal of maintaining nasofrontal duct patency after sinus surgery. The general recommendation is to leave stents in place for 6 months; however, prolonged stenting up to 6 years has been reported with no complication. We present the first reported case of frontal sinus posterior table and skull base erosion following prolonged frontal sinus stenting. A 57-year-old female presented with chronic sinusitis and nasal obstruction. Imaging revealed pansinusitis with retained stents in each frontal sinus that were placed 8 years prior. On the right, there was an area of skull base erosion at the tip of the stent. The patient underwent functional endoscopic sinus surgery with polypectomy. The stents were removed, revealing posterior table erosion on the right side but intact mucosa. Two months after surgery, there were no signs or symptoms of cerebrospinal fluid leak or other complications. Recent literature has suggested that prolonged stenting is safe; however, this case highlights a complication with potentially serious outcomes that can result from prolonged stenting. We recommend stent removal once stable nasofrontal duct patency has been achieved. If prolonged stenting is utilized, patients should be closely monitored and consideration should be given to periodic imaging to evaluate stent position
Further techniques on a polynomial positivity question of Collins, Dykema, and Torres-Ayala
We prove that the coefficient of in is a sum
of squares in the entries of the symmetric matrices and .Comment: 21 page
Kennesaw State University Symphony Orchestra Strings
Enjoy performances by the KSU Symphony Orchestra, led by Nathaniel Parker; Charae Krueger, cello; and Helen Kim, violin.https://digitalcommons.kennesaw.edu/musicprograms/2385/thumbnail.jp
Cellist Zuill Bailey with Helen Kim and the KSU Symphony Orchestra
Cellist Zuill Bailey performs an artsKSU presents recital with Helen Kim and the KSU Symphony Orchestra.https://digitalcommons.kennesaw.edu/musicprograms/2242/thumbnail.jp
Recommended from our members
Polarization-sensitive spectral interferometry
A polarization sensitive spectral interferometer apparatus and method for analyzing a sample. The polarization sensitive spectral interferometer apparatus and method determines polarization properties of the sample.Board of Regents, University of Texas Syste
Recommended from our members
Polarization-sensitive spectral interferometry
A polarization sensitive spectral interferometer apparatus and method for analyzing a sample by optical energy reflected from the sample. The polarization sensitive spectral interferometer apparatus and method determines polarization properties of the sample by optical energy reflected from the sample.Board of Regents, University of Texas Syste
Recommended from our members
Polarization-sensitive spectral interferometry as a function of depth for tissue identification
A polarization sensitive spectral interferometer apparatus and method for analyzing a sample by optical energy reflected from the sample. The polarization sensitive spectral interferometer apparatus and method determines polarization properties of the sample by optical energy reflected from the sample. The method for analyzing a sample with a spectral interferometer identifies the tissue type of the sample by the polarization properties as a function of depth from the sample.Board of Regents, University of Texas Syste
Kennesaw State University Symphony Strings
The KSU Symphony Strings, under the direction of Dr. Nathaniel F. Parker, present a concert featuring the works of Corelli, Whitacre, Grant Still, and Montgomery. Presented virtually from Morgan Concert Hall of the Bailey Performance Center.https://digitalcommons.kennesaw.edu/musicprograms/2337/thumbnail.jp
- …