Evaluation of the cochlear implantation users rehabilitation results using psychoacoustic methods

xlomafota13 shared this article with you from Inoreader Evaluation of the cochlear implantation users rehabilitation results using psychoacoustic methods Via Vestnik otorinolaringologii Vestn Otorinolaringol. 2021;86(6):10-16. doi: 10.17116/otorino20218606110. ABSTRACT Currently, the number of patients with bilateral sensorineural deafness treated with cochlear implantation (CI) is increasing in the Russian Federation. In this regard, methods of assessing the auditory rehabilitation of this category of patients become more relevant. OBJECTIVE: To investigate the correlation of the speech intelligibility in quiet with frequency resolving power (FRP) of hearing using a ripple-spectrum phase reversion test (RSPRT) in CI users. MATERIAL AND METHODS: The study includes 30 CI users, three of them after bilateral CI, aged from 13 to 63 years with CI usage experience from 1 year to 16 years. 19 patients used CI systems manufactured by Cochlear Ltd. (Australia), 11 patients used CI systems manufactured by Advanced Bionics (Switzerland). All subjects underwent a number of studies including pure tone audiometry (TPA) , speech audiometry in quiet using a multi-syllable speech material on a two-channel clinical audiometer AC-40 (Interacoustics A/S, Denmark); PC with recorded phonetic material from which the signal was reproduced, acoustic speaker SP90 (Interacoustics A/S, Denmark), for FRP estimation - RSPRT test in a free sound field, which was installed on the PC and also reproduced through SP 90 speakers (Interacoustics A/S, Denmark) were used. RESULTS: According to TPA results in a free sound field, the sound perception thresholds in all subjects corresponded to the mild degree sensorineural hearing loss. The sound perception threshold in the free sound field in the range from 500 Hz to 4 kHz was within the range of 25-30 dB nHL. The percentage of speech intelligibility in quiet in the free sound field ranged from 5 to 100%. During the FRP study of patients using RSPRT test, the following results were obtained: the average value of RSPRT test results at the frequency of 1 kHz was 1.94 RP O; for 2 kHz - 2.3 RPO; for 4 kHz - 2.2. The significant correlation between the speech intelligibility in quiet and frequency resolution of hearing was obtained at 1 and 4 kHz. The highest correlation coefficient was detected at 1 kHz - r=0.57 (p=0.0005), while at 4 kHz it was lower - r=0.46 (p=0.009), and at 2 kHz - at the boundary of the significance: r=0.34 (p=0.051). CONCLUSIONS: As a result of the study, it was found that there is a correlation between speech intelligibility in quiet and FRP of hearing, which makes it possible to recommend the use of RSPRT in assessing the auditory rehabilitation of patients after CI. PMID:34964322 | DOI:10.17116/otorino20218606110 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A case of ear miasis in a 2-month-old child

xlomafota13 shared this article with you from Inoreader A case of ear miasis in a 2-month-old child Via Vestnik otorinolaringologii Vestn Otorinolaringol. 2021;86(6):113-116. doi: 10.17116/otorino202186061113. ABSTRACT A clinical case is presented - a rare observation of ear myasis in a 2-month-old child. PMID:34964340 | DOI:10.17116/otorino202186061113 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Laryngeal cysts in children

xlomafota13 shared this article with you from Inoreader Laryngeal cysts in children Via Vestnik otorinolaringologii Vestn Otorinolaringol. 2021;86(6):57-61. doi: 10.17116/otorino20218606157. ABSTRACT Laryngeal cysts in children are relatively rare, occupying the 4-5th place in the structure of congenital malformations. The paper presents the combined experience of two Russian pediatric otorhinolaryngological clinics traditionally involved in the rehabilitation of patients with congenital and acquired pathology of the larynx. OBJECTIVE: To analyze the features of the clinic, diagnosis and treatment of laryngeal cysts in children. MATERIAL AND METHODS: The study included 68 children with laryngeal cysts aged from 3 days to 16 years (on average 39.5±37.0 months, Me=15.5 months). The cyst was localized in the vestibular region of the larynx in 15 (22.1%) patients, in the vocal region - in 15 (22.1%) patients, and in the sub-vocal region - in 38 (55.9%) patients. Data on the presence of a history of tracheal intubation were available in 35 ( 89.7%) children, including 35 (92.1%) of 38 children with a subfold cyst. 11 patients were admitted with a previously applied tracheostomy. RESULTS: The main reasons for going to the clinic were signs of laryngeal stenosis (stridor, signs of obstruction of the upper airways) in 60.3% of patients, dysphonia - in 33.8%, and in 5.9%, the detection of a cyst became an accidental finding. To eliminate the cyst, the method of laser marsupialization was used in 10 patients, coagulatory ablation - in 2 patients, in the remaining 56 patients, decortication was performed with microinstruments, followed by laser treatment of the cyst bed. In the follow-up, children were traced from 6 months to 7 years. We did not observe a recurrence of a cyst in any case. CONCLUSION: Currently, the lining department is the "favorite" localization of the cyst in childhood. Subclavian cysts are more common in preterm infants who need tracheal intubation. A necessary condition for radical elimination is the resection of the cyst walls. PMID:34964331 | DOI:10.17116/otorino20218606157 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

The Hypothalamic Paraventricular Nucleus Is the Center of the Hypothalamic–Pituitary–Thyroid Axis for Regulating Thyroid Hormone Levels

xlomafota13 shared this article with you from Inoreader The Hypothalamic Paraventricular Nucleus Is the Center of the Hypothalamic–Pituitary–Thyroid Axis for Regulating Thyroid Hormone Levels Via liebertpub1 Thyroid, Ahead of Print. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Management of the middle turbinate during and after sinus surgery

xlomafota13 shared this article with you from Inoreader Management of the middle turbinate during and after sinus surgery Via Current Opinion in Otolaryngology & Head and Neck Surgery - Current Issue Purpose of review Treatment of the middle turbinate (MT) during and after endoscopic sinus surgery (ESS) has been controversial. Historically, there has been concern that resection of the MT may result in smell loss and frontal sinus stenosis. However, these concerns must be balanced by knowledge that a residual diseased MT may result in surgical failure. This review discusses the current evidence on treatment of the MT during and after ESS. Recent findings Several review articles have shown the safety of performing MT resection. Studies have not shown increase rates of frontal sinus stenosis, olfactory loss, or empty nose syndrome. However, the benefit of MT resection is highly debated. There have also been many recent advances and technological developments to assist in management of the postoperative MT. Summary The literature supports the safety of performing MT resection, however, the benefit of resection over preservation is controversial. New technologies and techniques exist that may aid in preventing postoperative MT lateralization. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Macrophage inhibitory cytokine-1 produced by melanoma cells contributes to melanoma tumor growth and metastasis in vivo by enhancing tumor vascularization

xlomafota13 shared this article with you from Inoreader Macrophage inhibitory cytokine-1 produced by melanoma cells contributes to melanoma tumor growth and metastasis in vivo by enhancing tumor vascularization Via Melanoma Research - Current Issue Macrophage inhibitory cytokine-1 (MIC-1) has been reported to be elevated in various human cancers including melanoma; however, the function of MIC-1 in cancer remains unclear. In this study, we attempt to clarify the role of MIC-1 in tumor pathogenesis by employing the orthotopic B16F1 melanoma mouse model in which serum MIC-1 levels are positively correlated with tumor size. By stably transfecting a MIC-1 expression construct into B16F1 melanoma cells, we increased the expression and secretion levels of MIC-1. This increase in MIC-1 expression significantly enhanced the growth of tumors derived from B16F1 cells in vivo, despite not affecting in vitro cell growth. The elevated MIC-1 expression in B16F1 cells also resulted in lymph node metastasis in B16F1 tumor-bearing mice, significantly increasing mortality. Interestingly, among small melanoma tumors of similar size, tumors derived from the MIC-1-transfected B16F1 cells exhibited enhanced blood vessel formation compared with those of mock transfectant cells. Also, more MIC-1 was found in well-vascularized tumor regions than in poorly vascularized tumor regions. Moreover, conditioned medium (CM) of the MIC-1-transfected melanoma cells enhanced the angiogenic properties of endothelial cells more than CM of mock transfectant cells. Notably, hypoxic culture conditions forced parental B16F1 cells to secrete more endothelial cell-stimulating factors, among which the function of MIC-1 was confirmed by blocking the effects with an anti-MIC-1 antibody. Taken together, these results suggest that the MIC-1 produced by melanoma cells in response to oxygen de privation promotes tumor vascularization during melanoma development in vivo, leading to enhanced tumor growth and metastasis. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Breathy Dysphonia, Not Just a Pain in the Neck

xlomafota13 shared this article with you from Inoreader Breathy Dysphonia, Not Just a Pain in the Neck Via ear nose throat Ear Nose Throat J. 2021 Dec 27:1455613211069919. doi: 10.1177/01455613211069919. Online ahead of print. ABSTRACT We describe a rare occurrence of unilateral vocal fold paralysis associated with a cervical osteophyte abutting the course of the recurrent laryngeal nerve. Trans-nasal laryngoscopy is vital in diagnosing vocal fold paralysis, but often does not provide insight into etiology. This case highlights the importance of radiographic imaging in newly diagnosed vocal fold paralysis, and underscores the principle that a diagnosis is not idiopathic until all sources have been ruled out. PMID:34958270 | DOI:10.1177/01455613211069919 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.