Publications by authors named "Ioannis Kastanioudakis"

Seromucinous hamartoma is a rare benign glandular proliferation arising from the respiratory epithelium of the sinonasal tract and nasopharynx. It was described for the first time in 1974 by Baillie and Batsakis. Since then, few cases have been reported in the literature with most of them occurring in the posterior nasal septum.

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Background The visual analogue scale (VAS) has been used as a diagnostic tool for the evaluation of the severity of olfactory and gustatory dysfunction (OGD) caused by SARS-CoV2 infection. The main objective of the present study was the evaluation of OGD with VAS in COVID-19-positive patients in Northwestern Greece and its possible association with the patients' self-reported symptoms of olfactory and gustatory dysfunction. Methods The presence of olfactory and gustatory symptoms and their severity were assessed by questionnaire along with the use of specific odorants and tastant ingredients, in three time periods: prior to COVID-19, during COVID-19 (initial diagnosis) and post-COVID-19 disease (at four weeks from disease onset).

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To provide a detailed description and evaluation of therapeutic techniques for the management of nasal valve in rhinoseptoplasty. An extensive review of the international bibliography has been conducted to highlight published articles on nasal valve pathology and therapeutic measures to address it. To date, many techniques have been described for increasing the cross-sectional area of the nasal valve.

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Autoimmune hepatitis (AIH) is characterized by elevated serum transaminase, increased immunoglobulin G levels, presence of autoantibodies, and hepatocellular damage. Coexistence with other autoimmune diseases has been reported in almost half of patients with AIH. Here, we report a 60-year-old man who developed rapidly progressive, bilateral, asymmetrical, and asynchronous sensorineural hearing loss that was consistent with immune-mediated inner ear disease (IMIED).

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We aimed to assess the relation of chemosensory dysfunction with the reported symptoms in two subgroups of patients in Northwestern Greece: the first one included patients with moderate to severe symptomatology who needed hospitalization and the second one, patients with mild symptoms who recovered at home. We used a questionnaire to select information about patient demographics, medical history and reported symptoms during infection. Three hundred COVID-19 positive patients who were identified via RT-PCR test in the University Hospital of Ioannina, Greece, were included in the present study, of which 150 recovered at home and the remaining 150 needed hospitalization.

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Fibrous dysplasia (FD) is a rare, benign, chronic, slowly progressive bone disorder characterized by the replacement of normal bone and bone marrow by fibrous tissue, leading to deformity, pain and functional impairment. It was considered a disease of unknown etiology, uncertain pathogenesis and diverse histopathology. It was later discovered that was caused by a non-heritable activating mutation in the á-subunit gene of the stimulatory G-protein coding gene.

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Introduction: In the region of Epirus (Northwestern Greece) there are characteristic climatic and geographical conditions that facilitate the growth of typical vegetation with the production of allergic pollen. Aerobiological research into airborne pollen diversity and seasonal variation in pollen counts and fungi spores has become essential due to the growing incidence of allergic rhinitis, allergic asthma, and other pollen-related and spore-related allergic conditions. Furthermore, weather conditions and other factors like air pollution may affect the intensity, the onset, and the duration of the pollen season, and the impact on the patient's symptomatology.

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Olfactory and gustatory dysfunction that relates with the infection from severe acute respiratory syndrome-related coronavirus (SARS-CoV-2) has already improved. The relation between chemosensory dysfunction and age and gender in covid-19 positive patients is the main objective of the present study. We used a questionnaire to select information about medical history, patient demographics and reported symptoms during infection.

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Brain abscesses caused by sinusitis are rare in the antibiotic era. The purpose of the current manuscript was to report a rare case of a brain abscess located mainly in the frontal lobe after sinusitis, which was initially thought to be meningitis or encephalitis. A 39-year-old man was transferred to our hospital from another neighbouring hospital with tonic-clonic seizures, severe headache, and purulent nasal secretions.

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Diagnosis of odontogenic tumors can be challenging due to their rarity and diverse morphology, but when arising near the tooth, the diagnosis could be suspected. When their location is not typical, like inside the paranasal sinuses, the diagnosis is less easy. Maxillary ameloblastomas are exceedingly rare with only sparse information on their epidemiological, histological and genetic characteristics.

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Head and neck cancer poses a significant health problem worldwide. We set out to investigate the value of rapid intraoperative cell cycle analysis by flow cytometry for the intraoperative characterization of head and neck lesions and surgical margins. Seventy patients with head and neck lesions suspicious of malignancy were included in the study.

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To investigate prospectively preoperative parameters that might be related to the outcome of surgically treated patients for cervical spondylotic myelopathy (CSM). Prospective study. Single Center in Ioannina, Greece.

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Inflammatory bowel disease (IBD) is a multisystemic disease. The ear is a rare but recognized site of extraintestinal manifestations of IBD. In external ear, the more common manifestations of IBD are pyoderma gangrenosum, metastatic Crohn's disease and relapsing polychondritis and the treatment includes corticosteroids and anti-TNF agents.

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Human papillomavirus (HPV)-mediated cervical carcinogenesis represents a well analyzed model of viral implication in epithelial malignant transformation. Mechanisms of high risk (HR) HPV-related infection seem to demonstrate a similar action regarding its implication in head and neck (HN) carcinomas, predominantly in squamous cell carcinoma (SCC) histological type. The prevalence of HR HPV subtypes - mainly HPV16 - is characterized by a broad geographic heterogeneity.

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Introduction: Subcutaneous and mediastinal emphysema is a rare complication after tonsillectomy. This case presentation and literature review summarizes the existing literature on this unusual complication.

Materials And Methods: This study presents a case of a 21-year-old man who developed a cervical subcutaneous emphysema 6 days after tonsillectomy, whereby conservative treatment produced spontaneous resolution.

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Objective: Cervical spondylosis and cervical disk herniation are the most frequent forms of degenerative disease in the cervical spine. Surgical treatment mainly includes anterior cervical disk fusion. However, information concerning vestibular-evoked myogenic potential (VEMP) recording in patients undergoing cervical spine surgery is limited.

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Signal transduction pathways consist of a variety of inter- and intra-cellular molecules. They act as supporting mechanisms for cell survival and homeostasis. Among them, the phosphatidylinositol 3-kinase (PI3K)/tumor suppressor phosphatase and tensin homologue deleted on chromosome ten (PTEN)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway plays a crucial role in regulating normal cell growth based on growth factor receptors (GFRs) interaction, including epidermal GFR (type II-HER2) and insulin GFR (IGF).

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DNA mismatch repair system (DNA MMR) is a crucial genetic mechanism for DNA homeostasis in prokaryotic and eukaryotic cells. During DNA replication and also recombination, point intra-nucleotide errors including base deletion, insertion, and mis-incorporation happen. These raised abnormalities in the newly synthesized DNA strand could affect negatively the stability of the molecule and the function of the corresponding genes.

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In the present prospective study, we both investigated positioning techniques for the enhancement of oVEMP procedures and the viability of oVEMP testing in a healthy children population. A total of 41 healthy children were enrolled in this study. 21 were boys and 20 were girls, with their ages ranging from 4 to 16 years.

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The aim of this paper was to present our experience with a universal newborn hearing screening program, including the specific problems and difficulties faced since its beginning, along with the measures used to overcome them and to improve its efficiency. We analyzed data from 22,195 newborns screened by transiently evoked otoacoustic emissions (TEOAE) performed during the first days after birth. 84.

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We investigated whether modeling with artificial neural networks or logistic regression of distortion product otoacoustic emissions (DPOAE), across diverse frequencies, may achieve an accurate diagnosis of sensorineural hearing loss (SNHL) of cochlear origin. 256 ears (90 with SNHL and 166 with normal hearing) were evaluated with pure-tone audiometry, impedance audiometry, speech audiometry and DPOAE. Ears were split into training (n = 176) and validation (n = 80) sets.

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In order to reduce the examination time of the Distortion Product Otoacoustic Emissions (DPOAE) test, we investigated the applicability of the multiple-tone pairs method by comparing the DPOAE evoked by 4- and 3-tone pairs (Sim) with the conventional 1-tone pair (Seq) in 116 ears of human adults with normal hearing (NH) and 86 ears with sensorineural hearing loss (SNHL). We found that: (1) DPOAE amplitudes in the NH group obtained with the Sim method were strongly correlated with those of Seq. (2) DPOAE amplitude and noise level mean values obtained with the Seq method were significantly higher than those obtained with Sim.

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