Category: Otolaryngology

Otolaryngologists

Targeted next-generation sequencing of Japanese patients with sinonasal mucosal melanomas identifies frequent NRAS and CTNNB1 mutations

Auris Nasus Larynx. 2023 Nov 10:S0385-8146(23)00183-9. doi: 10.1016/j.anl.2023.10.002. Online ahead of print. ABSTRACT OBJECTIVE: Mucosal melanoma is a rare malignancy; however, the reported incidence rate of mucosal melanoma is higher in Asians than in Caucasians. Sinonasal mucosal melanoma (SNMM) is an aggressive malignancy with a poor prognosis due to distant metastasis. Systemic therapy with BRAF inhibitor and MEK inhibitor is one of the standards of care for cutaneous melanoma patients with BRAF V600 mutations. However, no molecular targeted therapy for patients with mucosal melanoma has been established. Relatively few studies have described the genetic mutations associated with mucosal melanoma because...

Central node dissection from the perspective of lateral neck node metastasis in papillary thyroid carcinoma

Auris Nasus Larynx. 2023 Nov 7:S0385-8146(23)00184-0. doi: 10.1016/j.anl.2023.10.003. Online ahead of print.ABSTRACTOBJECTIVES: Controversy exists on how to handle central lymph nodes in papillary thyroid carcinoma, particularly regarding indications for prophylactic central neck dissection (CND). Central node metastases are more difficult to diagnose preoperatively than lateral node metastases.METHODS: We enrolled 493 patients with papillary thyroid carcinoma treated at our department in the past 22 years. Metastatic lymph nodes were diagnosed preoperatively mainly by ultrasonography. In principle, CND was performed for all cases; ipsilateral CND was performed for hemithyroidectomy, and bilateral CND was performed for total thyroidectomy. Lateral neck dissection (levels II...

Safety and efficacy of high tracheostomy with inferior retraction of the thyroid isthmus

Auris Nasus Larynx. 2023 Nov 3:S0385-8146(23)00188-8. doi: 10.1016/j.anl.2023.10.007. Online ahead of print.ABSTRACTOBJECTIVE: In typical surgical tracheostomy, the thyroid isthmus is divided or retracted superiorly and preserved. However, at our institution, the thyroid isthmus is retracted inferiorly and preserved. Thereafter, a tracheal incision is made above the thyroid isthmus. This method, hereinafter defined as high tracheostomy, has the advantage of facilitating immediate access to the trachea in a superficial position; moreover, it can be quickly replaced with cricothyrotomy in emergency situations. However, tracheotomies placed too high can potentially damage the cricoid cartilage, thereby causing subglottic granulation and tracheal stenosis. We aimed...

Risk factors for occurrence and progression of external auditory canal cholesteatoma

Auris Nasus Larynx. 2023 Nov 2:S0385-8146(23)00176-1. doi: 10.1016/j.anl.2023.09.005. Online ahead of print.ABSTRACTOBJECTIVE: External auditory canal cholesteatoma (EACC) is characterized by retained squamous debris within the external canal and variable amounts of localized bone destruction. The etiology of primary EACC remains incompletely understood. This study was conducted to analyze the clinical features and backgrounds of patients with primary EACC and to clarify the risk factors for the occurrence and progression of EACC.METHODS: Sixty-nine ears of 62 patients diagnosed with primary EACC were included in this study (EACC group). Additionally, 74 ears of 60 patients with chronic otitis media (COM) with perforation...

Effects on hearing after long-term use of iron chelators in beta-thalassemia: Over twenty years of longitudinal follow-up

Auris Nasus Larynx. 2023 Oct 28:S0385-8146(23)00186-4. doi: 10.1016/j.anl.2023.10.005. Online ahead of print.ABSTRACTOBJECTIVE: The role of iron chelation in causing hearing loss (HL) is still unclear. The present study assessed the prevalence of HL among transfusion-dependent thalassemia (TDT) patients who underwent audiological follow-up over a 20-year period.METHODS: We retrospectively analyzed clinical records and audiological tests from January 1990 (T0) to December 2022 (T22) of a group of TDT patients who received iron chelation therapy with deferoxamine (DFO), deferiprone (DFP) or deferasirox (DFX), in monotherapy or as part of combination therapy.RESULTS: A total of 42 adult TDT patients (18 male, 24 female;...