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Otorhinolaryngologic Diseases - Top 30 Publications

Achaete-scute complex homologue-1 promotes development of laryngocarcinoma via facilitating the epithelial-mesenchymal transformation.

Laryngeal cancer is one of the most common fatal cancers among head and neck carcinomas, whose mechanism, however, remains unclear. The proneural basic-helix-loop-helix protein achaete-scute complex homologue-1, a member of the basic helix-loop-helix family, plays a very important role in many cancers. This study aims to explore the clinical value and mechanism of achaete-scute complex homologue-1 in laryngeal cancer. Methods including Cell Counting Kit-8, flow cytometry, Transwell invasion assays, and scratch assay were adopted to further explore the bio-function of achaete-scute complex homologue-1, whose expression was examined in fresh and paraffin chip of laryngeal carcinoma tissues by means of western blot and immunohistochemistry, after the interference of achaete-scute complex homologue-1; achaete-scute complex homologue-1, an overexpression in laryngeal carcinoma whose carcinogenicity potential was confirmed via western blot, was correlative with T classification (p = 0.002), histological differentiation (p = 0.000), lymph node metastasis (p = 0.000), and poor survival (p = 0.000). Multivariate analysis shows that achaete-scute complex homologue-1 overexpression is an independent prognostic factor unfavorable to laryngeal carcinoma patients (p = 0.000). Moreover, knocking down achaete-scute complex homologue-1 expression could significantly suppress the proliferation, migration, and invasion of laryngeal carcinoma cell in vitro and disorder epithelial-mesenchymal transformation-associated protein expression. Achaete-scute complex homologue-1 plays an important role in the genesis and progression of laryngeal carcinoma and may act as a potential biomarker for therapeutic target and prognostic prediction.

Inner ear anomalies in children with isolated unilateral congenital aural atresia.

We aim to define the frequencies of anomalies of the inner ear, oval window, and round window ipsilateral to isolated non-syndromic unilateral aural atresia.

Maturation of auditory brainstem responses in young children with congenital monaural atresia.

To date, the impact of conductive hearing loss on the auditory pathway at brainstem level has only been investigated in animal studies, which showed a species-specific delay of maturation. In this study, the functional maturation of auditory brainstem response (ABR) parameters in humans with unilateral atresia of the external auditory canal was investigated.

Assessment of red blood cell distribution width and mean platelet volume in children with epistaxis.

This study aimed to investigate whether there is a relationship between red blood cell distribution width, mean platelet volume and epistaxis in children.

An analysis of hearing screening test results in 2291 premature infants of Chinese population.

The aim of this study was to analyze the hearing screening program among preterm infants as well as to identify risk factors associated with failing primary newborn hearing screening.

Dysphagia after Occipitocervical Fusion.

You're the Flight Surgeon.

Milner MR. You're the flight surgeon: an unusual case of pharyngitis. Aerosp Med Hum Perform. 2017; 88(4):439-442.

Scarlet Fever.

Unusual axillary metastasis of recurrent nasopharyngeal cancer: A case report.

Nasopharyngeal carcinoma (NPC) has a high propensity of metastasis. The most commonly described sites of distant metastasis are the bones, lungs, and liver, whereas axillary metastasis is seldom reported.

Bacterial agents of the discharging middle ear among children seen at the University of Nigeria Teaching Hospital, Enugu.

Discharging middle ear continues to be one of the commonest problems seen in the developing world. There is an ever growing need to carry out studies periodically to determine the common bacterial agents responsible for discharging otitis media and their antibiotic sensitivity especially in set-ups characterized with minimal laboratory services. The study sought to determine the common bacterial agents causing discharging middle ear among children presenting at the University of Nigeria Teaching Hospital, Enugu and their sensitivity to the commonly available antibiotics.

Binaural Tympanic-Membrane Perforations after Blast Injury.

The management of dysphagia in palliative care.

The surgical treatment results of otosclerosis at the Department of Otolaryngology Silesian Medical University in Zabrze in years 2000-2010.

Otosclerosis is a cause of 5-9% of all hearing loss. The most effective treatment of otoslerosis is stapedotomy.

Analysis of risk factors for oral cavity and oropharynx cancer in the authors' own material.

The aim of the study was to analyse the risk factors for oral cavity and oropharynx cancer in peopled examined under the Head and Neck Cancer Awareness Week in 2016, Lodz.

The correlation of the results of the survey SNOT-20 of objective studies of nasal obstruction and the geometry of the nasal cavities.

In this paper were verified the correlation between the results of the survey SNOT-20 and the results of the objective tests of nasal obstruction which are rhinomanometry and acoustic rhinometry before and after surgical treatment, such as septoplasty, septoconchoplasty, ethmoidectomy and septoethmoidectomy.

Hearing loss in mild OSAS and simple snoring patients.

Introduction Obstructive Sleep Apnea Syndrome (OSAS) is characterized by recurrent episodes of prolonged partial or complete obstruction of the upper airways. Several study groups studied the effect of snoring and OSAS on auditory function, showing an increase in the incidence of hearing loss in apneic patients, an earlier onset and/or a degree of hearing loss deeper than in peers. The aim of our study is to evaluate the audiological performance of a population of simple-snoring patients and patients suffering from mild OSAS, and the impact that such pathological condition can have on the auditory function, considering the significant levels of chronic noise. Materials and Methods Data was collected by analyzing audiometric exams on snoring patients and a control group of non-snoring patients. Our study included simple snoring patients without OSAS (AHI < 5) or with low level of OSAS (5< AHI < 15). Possible hearing loss was classified in a crescent scale (A-B-C-D-E), from greater to minor auditory performance, according to the indications of the national protocol of occupational medicine for evaluation of hearing loss in patients exposed to chronic noise. Results We have found independence between simple snorers, mild-OSAS snorers and non-snoring patients compared to the scale of hearing performance classification. Conclusions Our results show a distribution of hearing loss in the different groups that appear independent of the presence or absence of snoring, complicated or uncomplicated by mild OSAS.

Medialization thyroplasty in glottis insufficiency due to unilateral vocal fold paralysis and after laser cordectomies - preliminary report.

Medialization thyroplasty (type I) is surgical procedure performed on the thyroid cartilage. The major indication for this surgery is significant glottis insufficiency due to unilateral vocal fold paresis. However the proce¬dure is also performed after vocal fold resections during cordectomy.

The rapid change in sinonasal inverted papilloma incidence - the epidemiological analysis.

In recent years, the incidence of sinonasal inverted papilloma (IP) in a stable population has increased significantly. The aim of the study was to analyze the occurrence of IP between the years 2002-2012 in relation to epidemiological factors in an unalterable area. Moreover, we wanted to start a discussion about the difficulties in determining the inci¬dence of benign lesions that are not included in registers. This retrospective study included a group of 69 patients who were treated in the Department of Otolaryngology, ENT Oncology, Poznań University of Medical Sciences. In 2006, we noticed a sudden change in referrals. We compared two groups of patients who were referred during two differ¬ent time periods: 11 patients (2002-2006) and 58 patients (2007-2012). Despite a marked difference in the number of patients, there were no differences between the groups in tumor location (p>0.05), stage (p=0.16), duration of symp¬toms (p=0.39), place of residence, and smoking (p=0.41). The patient`s age was the only variable that differed significantly between the groups (48.45 vs. 56.93 years; p=0.043569, respectively).

Assessment and management of retraction pockets.

This manuscript intends to review types, pathogenesis, associated risk factors, and potential methods of prevention and treatment of the retraction pockets in adults and children. The importance of retraction pockets (RP) lies in loss of original histological and anatomical structure which is associated with development of ossicular chain erosion, cho¬lesteatoma formation and potentially life threatening complications of cholesteatoma. The trans-mucosal exchange each gas in the middle ear (ME) is towards equalizing its partial pressures with the partial pressure in the environ¬ment. MEs that have abnormalities in the volume and ventilation pathways in the epitympanic may be more suscep¬tible to retraction pockets. Sustained pressure differences and/or inflammation leads to destruction of collagen fibers in the lamina propria. Inflammatory mediators and cytokines lead to release of collagenases result in viscoelastic properties of the lamina propria. The process of changes in the tympanic membrane structure may evolve to the cho¬lesteatoma formation. There are many different staging systems that clinicians prioritize in their decision making in the management of RP. The authors discuss the management possibilities in different clinical situations: RP without and with ongoing or intermittent evidence of Eustachian Tube Dysfunction (ETD), presence of adenoid hypertrophy or re-growth of adenoids, presence or absence of effusion, invisible depth of RP without effusion. invisible depth of RP with effusion, ongoing RP after VT insertion, and finally suspicion of cholesteatoma in a deep RP with ME effusion. A decision algorithm regarding the management of TM retraction and retraction pockets is provided.

Porównanie częstości występowania objawów współistniejących w grupie pacjentów z zawrotami głowy.

Dizziness is the second most frequent symptom that make patients seek specialized examination. The effective solution of dizzy conditions requires treatment in cooperation with different branches of medicine.

Wpływ wybranych czynników środowiskowych na maksymalny przepływ nosowy wdechowy - część projektu ECAP (Epidemiologia Chorób Alergicznych w Polsce).

Celem niniejszej pracy była próba określenia wpływu wybranych czynników/parametrów na wynik maksymalnego przepływu nosowego wdechowego (PNIF, ang. peak nasal inspiratory flow) w badanej populacji polskiej projektu Epidemiologia Chorób Alergicznych w Polsce (ECAP). Materiał/metody: Badaną populację stanowiła grupa dzieci w wieku 6-7 lat (n=1123), młodzieży w wieku 13-14 lat (n=1136) oraz dorosłych (n=1876) zamieszkałych w siedmiu dużych polskich miastach. W badaniu posłużono się pomiarem maksymalnego przepływu nosowego wdechowego (PNIF). Do oceny wpływu wybranych czynników na wartości PNIF wykorzystano przetłumaczone i walidowane kwestionariusze opracowane na potrzeby światowych badań ECRHS II (European Community Respiratory Health Survey II) i ISAAC (International Study of Asthma and Allergies in Childhood). Wyniki: Określone warunki wewnątrz gospodarstwa domowego, m.in. ogrzewanie węglem, drewnem lub piecem gazowym, istotnie zwiększają przekrwienie błony śluzowej nosa. W grupie biernych palaczy PNIF był niższy niż w grupie czynnych palaczy. Wskaźnik PNIF malał wraz ze wzrostem liczby domowników palących papierosy. Wnioski: Wybrane czynniki środowiska.

Comparative assessment of monopolar and bipolar radiofrequency surgery of inferior turbinate.

The aim of this study was to compare early outcomes of monopolar (MP) and bipolar (BP) radiofrequency (RF) treatment of inferior turbinate hypertrophy from the perspective of both the patient and the surgeon.

The influence of the body mass index (BMI) on selected parameters of the coagulation system in patients with disorders of the balance system taking oral contraceptives.

The objective of the paper is to evaluate the influence of the body mass index (BMI) on selected parameters of the coagulation system in patients with disorders of the balance system taking oral contraceptives.

Clinical outcomes of treatment of sinonasal inverted papillomas (IPs) depending on the surgical technique and learning curve.

Sinonasal inverted papillomas (IPs) are a major challenge for ENT specialists. In the last decades, the number of endoscopic procedures has increased, while the percentage of external or double approach procedures has decreased. The aim of this study was to evaluate long-term IP treatment outcomes according to the applied surgical method.

Assesment effectiveness of treatment Eustachian tube dysfunction using pneumatic inhaler AMSA.

Upper respiratory tract infections are common childhood diseases. Children are more susceptible to middle ear infections because their Eustachian tube is short, straight and wide. As a consequence of these inflammatory changes while impaired patency of the Eustachian tube often arises conductive hearing.

Endoscopic surgical management of sinonasal inverted papilloma extending to frontal sinuses.

Sinonasal inverted papilloma has been traditionally managed with external surgical approaches. Advances in imaging guidance systems, surgical instrumentation, and intraoperative multi-visualization have led to a gradual shift from external approaches to endoscopic surgery. However, for anatomical and technical reasons, endoscopic surgery of sinonasal inverted papilloma extending to the frontal sinuses is still challenging. Here, we present our experience in endoscopic surgical management of sinonasal inverted papilloma extending to one or both frontal sinuses.

Functional outcomes of tympanoplasty surgery.

We reviewed functional outcomes of tympanoplasty.

Novel missense mutation in the bZIP transcription factor, MAF, associated with congenital cataract, developmental delay, seizures and hearing loss (Aymé-Gripp syndrome).

Cataract is a major cause of severe visual impairment in childhood. The purpose of this study was to determine the genetic cause of syndromic congenital cataract in an Australian mother and son.

Clinical research of the five needles combined with rehabilitation training treatment dysphagia after stroke.

To compare therapeutic effects of Five Needles of the Nape and routine acupuncture on treatment of pseudo bulbar paralysis dysphagia after Brain stroke. 60 patients were randomly divided into five key groups and routine acupuncture, and 30 cases in each group. The group of Five Needles of the Nape set points to take dumb door, Tianzhu, cure choke point with acupuncture treatment which cooperate with swallowing training . The group of routine acupuncture set points to take Lian Quan, Tong Li, Zhao Hai points with acupuncture treatment. Both groups were acupunctured once a day, 6 times a week and 2 weeks is a period of treatment, evaluating curative effect after two courses of treatment. The total effective rate of Five Needles of the Nape group was 93.3%, when the total effective rate of routine acupuncture group was 80.0%.as a consequence Five Needles of the Nape group is superior to routine acupuncture group (P<0.05). Five Needles of the Nape have better clinical efficacy than routine acupuncture on treatment of pseudo bulbar paralysis dysphagia after Brain stroke.

The primary growth of laryngeal squamous cell carcinoma cells in vitro is effectively supported by paired cancer-associated fibroblasts alone.

Most primarily cultured laryngeal squamous cell carcinoma cells are difficult to propagate in vitro and have a low survival rate. However, in our previous work to establish a laryngeal squamous cell carcinoma cell line, we found that laryngeal cancer-associated fibroblasts appeared to strongly inhibit the apoptosis of primarily cultured laryngeal squamous cell carcinoma cells in vitro. In this study, we investigated whether paired laryngeal cancer-associated fibroblasts alone can effectively support the growth of primarily cultured laryngeal squamous cell carcinoma cells in vitro. In all, 29 laryngeal squamous cell carcinoma specimens were collected and primarily cultured. The laryngeal squamous cell carcinoma cells were separated from cancer-associated fibroblasts by differential trypsinization and continuously subcultured. Morphological changes of the cultured laryngeal squamous cell carcinoma cells were observed. Immunocytofluorescence was used to authenticate the identity of the cancer-associated fibroblasts and laryngeal squamous cell carcinoma cells. Flow cytometry was used to quantify the proportion of apoptotic cells. Western blot was used to detect the protein levels of caspase-3. Enzyme-linked immunosorbent assay was used to detect the levels of chemokine (C-X-C motif) ligand 12, chemokine (C-X-C motif) ligand 7, hepatocyte growth factor, and fibroblast growth factor 1 in the supernatants of the laryngeal squamous cell carcinoma and control cells. AMD3100 (a chemokine (C-X-C motif) receptor 4 antagonist) and an anti-chemokine (C-X-C motif) ligand 7 antibody were used to block the tumor-supporting capacity of cancer-associated fibroblasts. Significant apoptotic changes were detected in the morphology of laryngeal squamous cell carcinoma cells detached from cancer-associated fibroblasts. The percentage of apoptotic laryngeal squamous cell carcinoma cells and the protein levels of caspase-3 increased gradually in subsequent subcultures. In contrast, no significant differences in the proliferation capacity of laryngeal squamous cell carcinoma cells cocultured with cancer-associated fibroblasts were detected during subculturing. High level of chemokine (C-X-C motif) ligand 12 was detected in the culture supernatant of cancer-associated fibroblasts. The tumor-supporting effect of cancer-associated fibroblasts was significantly inhibited by AMD3100. Our findings demonstrate that the paired laryngeal cancer-associated fibroblasts alone are sufficient to support the primary growth of laryngeal squamous cell carcinoma cells in vitro and that the chemokine (C-X-C motif) ligand 12/chemokine (C-X-C motif) receptor 4 axis is one of the major contributors.