The importance of vascular epithelial growth factor (VEGF) and inducible nitric oxide synthase (INOS) in rhinitis medicamentosa pathogenesis: An experimental rat model study

xlomafota13 shared this article with you from Inoreader The importance of vascular epithelial growth factor (VEGF) and inducible nitric oxide synthase (INOS) in rhinitis medicamentosa pathogenesis: An experimental rat model study Via Cellular and Molecular Biology Histol Histopathol. 2021 Nov 29:18399. doi: 10.14670/HH-18-399. Online ahead of print. ABSTRACT OBJECTIVE: Our aim in this study is to reveal the expression of Vascular Endothelial Growth Factor (VEGF) and Inducible Nitric Oxide Synthase (iNOS) in the pathogenesis of rhinitis medicamentosa (RM), which occurs as a result of the overdose and long-term use of topical nasal decongestants. METHODS: In this study, 24 Wistar albino rats were divided into two groups as experimental and control groups. In the experimental group, 50 µl of 0.05% oxymetazoline (iliadin® merck) was applied intranasally to each nostril three times a day for 2 months with the help of a micropipette. 50 µl saline was applied to the control group. At the end of the second month, the rats were examined. RM was detected in the experimental group. Then the nasal tissues of the rats were removed and fixed with 10% phosphate buffered neutral formaldehyde (pH=7.4). Nasal tissues were decalcified in Morse's solution (10% sodium citrate and 22.5% formic acid). Histopathological evaluations of the preparations were stained using Masson Trichrome (TCM) and Hematoxylin Eosin (H&E) techniques and immunohistochemical examinations of the preparations were stained with VEGF and iNOS antibodies and photographed using the Leica DM6000B microscope and the Leica Application Suite Program. RESULTS: In the RM group, we found a significant increase in VEGF and iNOS expression in the nasal mucosa compared to the control group (p<0.001). We also observed the main histopathological changes in the nasal mucosa under a light microscope, including squamous metaplasia in the epithelium of the tunica mucosa, submucosal perivascular edema and degeneration of the submucosal glands. CONCLUSIONS: According to these results, increased expression levels of VEGF and iNOS play an important role in rebound swelling in RM pathogenesis. PMID:34842278 | DOI:10.14670/HH-18-399 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Can Multi-Dimensional Voice Program (MDVP) Be Used as A Diagnostic Tool for Precocious Puberty?

xlomafota13 shared this article with you from Inoreader Can Multi-Dimensional Voice Program (MDVP) Be Used as A Diagnostic Tool for Precocious Puberty? Via Journal of Voice Voice is the one of the sexual maturation characteristics that differs between boys and girls. Voice analysis is a non-invasive diagnostic tool and well-tolerated by children. Our aim is to investigate the capability of MDVP to predict precocious puberty (PP). To our knowledge, this is the only study to assess the voice parameters in the diagnosis of PP. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A Cepstral Peak Prominence (CPP) Voice Analysis in Post-lingual Deaf Adult Cochlear Implant Users

xlomafota13 shared this article with you from Inoreader A Cepstral Peak Prominence (CPP) Voice Analysis in Iranian Post-lingual Deaf Adult Cochlear Implant Users Via Journal of Voice In standardized connected speech samples, cepstral peak prominence (CPP) and smoothed CPP (CPPS) have been described as accurate parameters to evaluate voice quality. Lack of normal auditory feedback in post-lingually deaf CI users might influence tuning the acoustic parameters in speech production. Based on shreds of evidence, normal hearing results in suitable vocal control through the sensory-motor linkage. The main aim of the present study was to compare the cepstral values between the Iranian cochlear implant group and normal peers. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Diagnosis and Management of Occult Cervical Tuberculous Lymphadenopathy

xlomafota13 shared this article with you from Inoreader Diagnosis and Management of Occult Cervical Tuberculous Lymphadenopathy Via ear nose throat Ear Nose Throat J. 2021 Nov 29:1455613211043692. doi: 10.1177/01455613211043692. Online ahead of print. ABSTRACT Objective: Some cervical tuberculous lymphadenopathy (CTL) presents no evidence of tuberculosis (TB), even after thorough examination of a fine-needle aspiration (FNA) specimen. After the examination of excisional specimens, when the polymerase chain reaction (PCR) analysis identifies the nucleic acid of Mycobacterium tuberculosis (Mtb) or the cultur e results are positive, then the diagnosis of CTL is established. We refer to this condition as occult CTL (OCTL). Patient and Methods: The present work is a retrospective review of a consecutive series of OCTL cases that were treated at the Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, between June 2015 and September 2020. When the diagnosis of OCTL was established, the patients received the standard anti-TB chemotherapy. Results: Fourteen cases of OCTL, including 9 female and 5 male patients, aged 24 to 71 years (median age 42 years), were included in the present study. The most commonly observed levels of lymph node involvement were level V and level II. Each level of the involved lymph nodes was removed entirely through en bloc surgical resection. An evaluation of the excisional specimens led to positive PCR results in all 14 cases, with 2 cases presenting positive culture and 3 cases exhibiting positiv e acid-fast bacilli (AFB) staining. Recovery was uneventful, and the anti-TB chemotherapy was completed in all cases. The median duration of follow-up was 29 months, during which no case of TB relapse was observed. Conclusions: Wide surgical excision is crucial for the diagnosis and management of OCTL, and when used in combination with anti-TB chemotherapy, it results in satisfactory patient outcomes. PMID:34842464 | DOI:10.1177/01455613211043692 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Diagnosis and Management of Giant Esophageal Fibrovascular Polyp With Hypopharyngeal Pedicle

xlomafota13 shared this article with you from Inoreader Diagnosis and Management of Giant Esophageal Fibrovascular Polyp With Hypopharyngeal Pedicle Via ear nose throat Ear Nose Throat J. 2021 Nov 29:1455613211046461. doi: 10.1177/01455613211046461. Online ahead of print. ABSTRACT Background: Fibrovascular polyps (FVPs) with hypopharyngeal pedicles (hFVPs) are the rare intraluminal benign tumours of the upper aerodigestive tract, and their accurate diagnosis and optimal management are challenging. Purpose: The present retrospective study attempted to explore the optimal diagnosis and treatment of hFVPs. Research Design: T he clinical records of 2 patients with giant, irregularly shaped hFVPs, who underwent several failed surgical procedures after inaccurate diagnosis, were reviewed. Finally, the patients were correctly diagnosed and successfully treated at Capital Medical University Beijing Friendship Hospital in different years, 2018 and 2020. Results: Case 1 was of a 43-year-old woman with 2 months of progressive dysphagia. Gastroenterologists overlooked the origin of her FVP, and decided to sever its narrowest point in the oesophagus through endoscopy. However, upon unsuccessful removal of the mass, a gastrotomy procedure was performed to extract the mass 7 days later. Symptoms recurred 3 months after the treatment, and a fibreoptic laryngoscopy confirmed hFVP in the patient at our department. A transcervical approach was used to sever the hypopharyngeal pedicle, achieve haemostasis and remove the oesophageal tumour. No recurrence was detected during the 2-year follow-up period after the tr eatment. Case 2 was of a 32-year-old man with dysphagia who had previously undergone transthoracic and transcervical oesophagotomy procedures within a gap of 3 months for the removal of FVP causing dysphagia. The hypopharyngeal pedicle was not diagnosed in the patient. The symptoms of dysphagia recurred 4 years after the treatment, and a fibreoptic laryngoscope confirmed hFVP at our department. The tumour was removed successfully through the transcervical approach. No recurrence was detected during the 6-months follow-up after surgery. Conclusion: In conclusion, the transcervical approach is suitable for achieving haemostasis and removing giant, irregularly shaped hFVPs. PMID:34842469 | DOI:10.1177/01455613211046461 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Correlation of airway ultrasonography and laryngoscopy findings in adults with subglottic stenosis: a pilot study

xlomafota13 shared this article with you from Inoreader Correlation of airway ultrasonography and laryngoscopy findings in adults with subglottic stenosis: a pilot study Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Nov 29. doi: 10.1007/s00405-021-07195-5. Online ahead of print. ABSTRACT PURPOSE: Ultrasonography of the airway has potential as an alternative, non-invasive, method to monitor patients with subglottic stenosis in an outpatient setting. This prospective, interventional, double-blinded study aimed to correlate ultrasound-based and laryngoscopy-based subglottic stenosis assessment in adults. METHODS: The study was conducted between July 2020 and March 2021 at a tertiary referral center. Consecutive adult patients with subglottic stenosis were evaluated using airway ultrasonography 1 day prior to scheduled laryngoscopy. The radiologist was blinded to the preoperative endoscopic findings, and the primary surgeon was blinded to the ultrasonographic measurements. The intraoperative subglottic diameter was defined as the outer diameter of an endotracheal tube passing through the subglottis without produci ng an air leak. RESULTS: Sixteen patients (11 females; age range, 17-66 years; mean = 44.06, SD = 12.79) were included. The ultrasonographic subglottic diameter ranged from 5.20 mm to 8.00 mm (mean = 6.24 mm, SD = 0.90). In 15 of 16 patients, the diameter difference between the ultrasonographic and intraoperative measurements ranged from -0.80 mm to 0.30 mm (mean = -0.20 mm, SD = 0.35). However, patient 6 had a difference of - 2.10 mm between the two measurements, which was attributed to thick laryngotracheal secretions interfering with the ultrasonographic air shadow. Data analysis of all 16 patients showed a statistically significant correlation between the readings obtained by the two techniques (r = 0.84, P = 0.000051). CONCLUSION: This study found a significant correlation between ultrasonography-based and laryngoscopy-based subglottic stenosis assessment in adult patients. It provides a basis for an alternative and potentially reliable method to monitor patients wi th subglottic stenosis. PMID:34842971 | DOI:10.1007/s00405-021-07195-5 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Unilateral Choanal Atresia: Indications of Long-Term Olfactory Deficits and Volumetric Brain Changes Postsurgically

xlomafota13 shared this article with you from Inoreader Unilateral Choanal Atresia: Indications of Long-Term Olfactory Deficits and Volumetric Brain Changes Postsurgically Via O.R.L. Journal for oto-rhino-laryngology and its borderlands Background: Very few studies have investigated whether unilateral choanal atresia is associated with permanent olfactory deficits. Objective: This study aimed to evaluate the olfactory performance of patients with unilateral choanal atresia postsurgically. Methods: Three patients with unilateral atresia were examined in terms of olfactory performance with the Sniffin' Sticks test (odor identification, threshold, and discrimination), size of the olfactory bulb, and volumetric brain changes. Results: All p atients demonstrated significantly lower olfactory performance in terms of odor threshold on the same side with the choanal atresia. Grey matter reductions were found ipsilaterally in the hippocampus. Conclusions: This pilot study indicates that persistent olfactory deficits and volumetric brain changes are present in patients with unilateral choanal atresia. ORL View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.