Dacryocystorhinostomy (DCR) remains the surgery of choice for the treatment of epiphora secondary to nasolacrimal duct (NLD) obstruction. It involves creating a direct soft-tissue anastomosis between the lacrimal sac and the ipsilateral nasal cavity, via an osteotomy created by removal of the floor of the lacrimal fossa and surrounding bone. Successful surgery clearly requires the presence of a nasal space and absence of this poses a surgical challenge. We describe three patients with absent nasal cavity on the side of lacrimal obstruction, where DCR was performed by the creation of an anastomosis between the lacrimal sac and the contralateral nasal space.
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http://dx.doi.org/10.1136/bjo.2006.099036 | DOI Listing |
JAMA Otolaryngol Head Neck Surg
January 2025
University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
J Neurol Surg B Skull Base
February 2025
Department of Otorhinolaryngology, Tan Tock Seng Hospital, Singapore.
Primary extracranial meningiomas (PEMs) of the sinonasal tract with no intracranial extension are rare. Our study presents the largest systematic review to date, providing a comprehensive overview and comparison of the characteristics, treatment, and prognosis of PEMs, with comparison to primary intracranial meningiomas (PIMs). A systematic review was conducted according to the PRISMA guidelines on PubMed, Embase, and Google Scholar up to November 1, 2022.
View Article and Find Full Text PDFComput Biol Med
January 2025
Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA, USA. Electronic address:
In this study, we examined the correlation between anatomical dimensions, spray administration parameters, pressure drop across 40 pediatric nasal cavities, and in vitro posterior drug delivery (PDD) using Nasacort ALLERGY 24HR and FLONASE SENSIMIST nasal suspensions sprays, with different nozzle and actuation designs. The importance of each parameter and their interaction in the outcome (PDD) was evaluated. To do so, initially we measured anatomical and administration-related parameters, and the pressure drop of each cavity.
View Article and Find Full Text PDFSurg Radiol Anat
January 2025
Faculty of Dental Medicine, University of Porto, Porto, Portugal.
Purpose: The greater palatine foramen (GPF) represents the inferior opening of the greater palatine canal and is located posterolaterally on both sides of the hard palate. The aim of this study is to morphometrically characterise the GPF and to determine its anatomical relationships in a Portuguese population.
Methods: A retrospective study was performed based on the clinical records which included all permanent teeth erupted and a cone beam computed tomography (CBCT) of the entire maxilla.
Microbiome
January 2025
Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China.
Background: Numerous studies have confirmed a close relationship between the pathogenicity of influenza and respiratory microbiota, but the mechanistic basis for this is poorly defined. Also, the majority of these studies have been conducted on murine models, and it remains unclear how far these findings can be extrapolated from murine models to other animals. Considering that influenza A virus is increasingly recognized as an important canine respiratory pathogen, this study investigated the cross-talk between nasal and lung tissues mediated by microbes and its association with influenza susceptibility in a beagle dog model.
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