Persistent Eosinophilic Inflammation Is Not a Feature of Type 2 CRS Patients Failing Anti-IL-5R Therapy and Requiring Class Switching to Anti-IL-4/13.

Background: Type 2 inflammation dominates eosinophilic chronic rhinosinusitis (eCRS) and adult onset asthma. IL-4, -5, and -13 are prominent disease mediators. Disease control can be achieved with biologic therapies.

The effect of allergen immunotherapy in patients with central compartment atopic disease post-surgery.

Objective: To assess the effect of allergen immunotherapy (AIT) on patients with central compartment atopic disease (CCAD) and house dust mite (HDM) sensitization post-surgery.

Methods: A retrospective cohort of surgically treated, HDM-sensitized CRSwNP patients phenotyped as CCAD was assessed. Patients were divided into two groups based on whether they had AIT commenced as part of their surgical care.

Prognostic factors and outcomes in minimal access resections of skull base and sinonasal epithelial malignancy.

Background: Sinonasal epithelial malignancies are uncommon tumours but represent a challenge to treatment given their close proximity to the orbit, brain and cranial nerves. Traditional external surgical approaches have potential for significant functional and cosmetic morbidity. An endoscopic approach provides the surgeon with good access for tumour removal and enables surveillance postoperatively.

Large-scale variation in wave attenuation of oyster reef living shorelines and the influence of inundation duration.

One of the paramount goals of oyster reef living shorelines is to achieve sustained and adaptive coastal protection, which requires meeting ecological (i.e., develop a self-sustaining oyster population) and engineering (i.

Epidemiology of Brain Metastases.

Brain metastasis continues to be a devastating complication of systemic malignancy, affecting approximately 20% of all patients suffering from cancer. Despite being a major source of morbidity and mortality for this patient population, a nationwide, systematic mechanism for reporting of brain metastases does not exist. Better understanding the epidemiology of brain metastases will help identify individuals who are at greatest risk of developing them and guide clinicians in selecting patients who are most likely to benefit from brain metastasis surveillance and prophylaxis.

Impact of Extent of Resection on Incidence of Postoperative Complications in Patients With Glioblastoma.

Background: Extent of resection (EOR) is well established as correlating with overall survival in patients with glioblastoma (GBM). The impact of EOR on reported quality metrics such as patient safety indicators (PSIs) and hospital-acquired conditions (HACs) is unknown.

Objective: To perform a retrospective study to evaluate possible associations between EOR and the incidence of PSIs and HACs.

The effects of hyperglycemia on outcomes in surgical high-grade glioma patients.

Objective: To define the glucose values associated with an increase in complication rates in post-operative brain tumor patients.

Patients And Methods: Patients who underwent craniotomy for resection of WHO Grade III or IV glioma from 2011 to 2014 were retrospectively reviewed. Post-operative blood glucose values were recorded for post-operative day #0, #1, and #2.

WITHDRAWN: Topical and systemic antifungal therapy for the symptomatic treatment of chronic rhinosinusitis.

Background: Chronic rhinosinusitis (CRS) is an inflammatory disorder of the nose and sinuses. Since fungi were postulated as a potential cause of CRS in the late 1990s, there has been increasing controversy about the use of both topical and systemic antifungal agents in its management. Although interaction between the immune system and fungus has been demonstrated in CRS, this does not necessarily imply that fungi are the cause of CRS or that antifungals will be effective its management.

Finding the Petroclival Carotid Artery: The Vidian-Eustachian Junction as a Reliable Landmark.

 Identifying the internal carotid artery (ICA) when managing petroclival and infratemporal fossa pathology is essential for the skull base surgeon. The vidian nerve and eustachian tube (ET) cartilage come together at the foramen lacerum, the vidian-eustachian junction (VEJ). The ICA position, relative to the VEJ is described.

Preimplantation genetics and other reproductive options in Huntington disease.

Preimplantation genetic diagnosis (PGD) is a form of prenatal diagnosis applied to potential parents with known carrier status of a genetic disease, such as Huntington disease. It employs the use of polymerase chain reaction to amplify single cells from early embryos obtained with in vitro fertilization (IVF) techniques. PGD allows the couple the chance to have a pregnancy and livebirth child without Huntington disease, although there are some risks and expenses related to the procedures.

Discrimination performance in aging is vulnerable to interference and dissociable from spatial memory.

Hippocampal-dependent episodic memory and stimulus discrimination abilities are both compromised in the elderly. The reduced capacity to discriminate between similar stimuli likely contributes to multiple aspects of age-related cognitive impairment; however, the association of these behaviors within individuals has never been examined in an animal model. In the present study, young and aged F344×BN F1 hybrid rats were cross-characterized on the Morris water maze test of spatial memory and a dentate gyrus-dependent match-to-position test of spatial discrimination ability.

Incidence of neoplasia in patients with unilateral epiphora.

Background: Nasolacrimal duct obstruction is common and is usually a result of benign stricture formation.Although neoplasia near or around the lacrimal system may produce epiphora, the incidence of neoplasia from within the lacrimal system as a cause of nasolacrimal duct obstruction is not well documented.

Methods: A retrospective study was performed on all patients undergoing dacryocystorhinostomy with a history of epiphora.

Cadaveric study of the endoscopic endonasal transtubercular approach to the anterior communicating artery complex.

The endoscopic transnasal approach to the anterior communicating artery (ACoA) complex is not widely performed. This cadaveric study investigated the surgical relevance of the anterior endoscopic approach to the treatment of ACoA aneurysms. Bi-nasal endoscopic transtubercular surgery was carried out on fresh adult cadavers.

The impact of culturable bacterial community on histopathology in chronic rhinosinusitis.

Background: The influence of the microbial community on inflammatory subtype in chronic rhinosinusitis (CRS) has been proposed. Superantigen mechanisms potentially create a T helper 2 (Th-2)/eosinophilic dominated inflammation as a product of local flora rather than an intrinsic mucosal process. The associations between culturable bacteria and the histopathology and clinical features of CRS patients are described.

The impact of neo-osteogenesis on disease control in chronic rhinosinusitis after primary surgery.

Background: Osteitic bone is a feature of chronic rhinosinusitis (CRS), potentially playing a role in pathogenesis. Although seen after previous endoscopic sinus surgery (ESS), it is also a de novo feature in patients without prior interventions. In these patients, osteitis is associated with high tissue and serum eosinophilia.

Chapter 3: Epistaxis.

Epistaxis is a common problem that may range in severity from a minor nuisance to hemodynamically significant bleeding. Vascular anatomy allows for predictable identification of suspicious bleeding sites. Historically, packing was the workhorse of management, but, currently, more directed interventions have become available.

Chapter 3: Epistaxis.

Epistaxis is a common problem that may range in severity from a minor nuisance to hemodynamically significant bleeding. Vascular anatomy allows for predictable identification of suspicious bleeding sites. Historically, packing was the workhorse of management, but, currently, more directed interventions have become available.

Induction of apoptosis and up-regulation of cellular proliferation in oral leukoplakia cell lines inside electric field.

Objective: In dentistry, metallic alloys are used for dentures, restorative materials, and orthodontic devices. Electric voltages up to 950 mV may occur between different dental alloys in the oral cavity. This study aimed to investigate physiologic reactions of oral leukoplakia cells in vitro to electric fields.

Antifungal therapy in the treatment of chronic rhinosinusitis: a meta-analysis.

Background: Chronic rhinosinusitis (CRS) is an inflammatory disorder of the nose and sinuses. Because fungi were postulated as a potential cause of CRS in the late 1990s, contrasting articles have advocated and refuted the use of antifungal agents in its management. Although good research shows an interaction of the immune system with fungus in CRS, e.

Assembly and initial characterization of a panel of 85 genomically validated cell lines from diverse head and neck tumor sites.

Purpose: Human cell lines are useful for studying cancer biology and preclinically modeling cancer therapy, but can be misidentified and cross-contamination is unfortunately common. The purpose of this study was to develop a panel of validated head and neck cell lines representing the spectrum of tissue sites and histologies that could be used for studying the molecular, genetic, and phenotypic diversity of head and neck cancer.

Methods: A panel of 122 clinically and phenotypically diverse head and neck cell lines from head and neck squamous cell carcinoma, thyroid cancer, cutaneous squamous cell carcinoma, adenoid cystic carcinoma, oral leukoplakia, immortalized primary keratinocytes, and normal epithelium was assembled from the collections of several individuals and institutions.

Topical and systemic antifungal therapy for the symptomatic treatment of chronic rhinosinusitis.

Background: Chronic rhinosinusitis (CRS) is an inflammatory disorder of the nose and sinuses. Since fungi were postulated as a potential cause of CRS in the late 1990s, there has been increasing controversy about the use of both topical and systemic antifungal agents in its management. Although interaction between the immune system and fungus has been demonstrated in CRS, this does not necessarily imply that fungi are the cause of CRS or that antifungals will be effective its management.

Concentration dependent effects of tobacco particulates from different types of cigarettes on expression of drug metabolizing proteins, and benzo(a)pyrene metabolism in primary normal human oral epithelial cells.

The ability of tobacco smoke (TS) to modulate phase I and II enzymes and affect metabolism of tobacco carcinogens is likely an important factor in its carcinogenicity. For the first time several types of TS particulates (TSP) were compared in different primary cultured human oral epithelial cells (NOE) for their abilities to affect metabolism of the tobacco carcinogen, (BaP) to genotoxic products, and expression of drug metabolizing enzymes. TSP from, reference filtered (2RF4), mentholated (MS), reference unfiltered, (IR3), ultra low tar (UL), and cigarettes that primarily heat tobacco (ECL) were tested.