Tympanic membrane findings and Eustachian tube function after transtympanic plugging for the chronic patulous Eustachian tube.

Objective: To evaluate Eustachian tube (ET) function after Kobayashi plug surgery based on the tympanic membrane (TM) findings and active opening (AO) of the ET assessed with sonotubometry.

Subjects And Methods: A retrospective survey of medical records identified 74 ears of 66 patients with patulous ET (PET) received transtympanic insertion of the Kobayashi plug. Excluding the six ears (6 patients) with abnormal preoperative TM, sixty-eight ears of 60 patients were found to have normal TM preoperatively.

Immunohistochemical localization of d--aspartic acid in congenital and acquired middle ear cholesteatoma.

Objective/hypothesis: Middle ear cholesteatoma is characterized by abnormal growth of the keratinizing squamous epithelium of the temporal bone. d--aspartic acid is the major isomer of d-aspartic acid found in elderly tissue. We assessed the immunoreactivity to k--aspartic acid of congenital and acquired middle ear cholesteatomas.

Outcome of the 'waiting until spontaneous extrusion' strategy for long-term tympanostomy tube placement in children with cleft palate.

Background: Otitis media with effusion (OME) in children with cleft palate (CP) is known to be refractory to treatment and most of these patients undergo surgery for ventilation tube (VT) placement.

Objectives: To identify the outcomes of children with CP using long-term VT with a 'waiting until spontaneous extrusion' strategy.

Material And Methods: We retrospectively reviewed the medical records of all children with CP who visited our department from December 2016 to November 2017 and who received long-term VT placement in our department.

Enlargement of Eustachian Tube Lumen in Patulous Eustachian Tube Patients Compared to that by Aging.

Objective: To evaluate the Eustachian tube (ET) dimensions in patulous ET (PET) patients compared with that by aging using sitting 3D computed tomography (CT).

Study Design: Retrospective study.

Setting: Tertiary referral center.

Patulous Eustachian Tube Patients With Respiratory Fluctuation of Tympanic Membrane in Both Sitting and Supine Positions: A Sign of Severity of Disease?

Objective: The aim is to report four cases of patulous Eustachian tube (PET) patients with respiratory fluctuation of the tympanic membrane (TM) even in the supine position, and to examine the frequency and characteristics of such patients.

Patients: There were 195 ears (99 right ears and 96 left ears) from 146 cases (56 male and 90 female subjects aged 8-88, average 48.0 ± 18.

Objective assessment of autophony during phonation in the diagnosis of patulous Eustachian tube patients.

Objective: A system enabling the objective assessment of the transmission of voice sounds to the external auditory canal (EAC) during phonation has recently been revised. Our aim was to evaluate the effectiveness of this new system in the diagnosis of patulous Eustachian tube (PET) patients by comparing the results obtained using this method with those obtained from conventional objective tests to diagnose PET.

Methods: A prospective survey of medical records was included with definite PET, possible PET, and sensorineural hearing loss as control.

Management of Patulous Eustachian Tube.

Patients with patulous Eustachian tubes (PET) suffer from annoying aural symptoms, such as voice or breath autophony, and aural fullness due to the ET's abnormal patency. It may lead to an enormous reduction in quality of life. Various treatment methods, including conservative and surgical therapy, have been reported.

Pulsatile tinnitus caused by pneumocephalus after Janneta surgery.

Pulsatile tinnitus of nonvascular origin is rare. We herein present a case of pulsatile tinnitus complicated with Jannetta surgery due to a communication created between the drilled mastoid cells and epidural space. She was successfully cured by otological surgery where the mastoid tip was packed with bone cement.

Diagnosis of the Patulous Eustachian Tube.

Objectives: To review the diagnosis of patulous Eustachian tube (PET) based on the diagnostic criteria for the PET proposed by Japan Otological Society (JOS).

Methods: We reviewed typical aural symptoms of PET, Eustachian tube (ET) obstruction procedure to confirm diagnosis of PET, objective findings of a patent ET obtainable from observation of the movement of the tympanic membrane, and by ET function tests (tubo-tympano-aerodynamic graphy, sonotubometry). In addition, usefulness of other tests such as patulous Eustachian tube handicap inventory-10 (PHI-10), sonotubometry with postural change (Ohta method), and sitting computed tomography (CT) to diagnose PET is described.

Metastasis of adenoid cystic carcinoma from a submandibular gland to the larynx.

The present article discusses the first reported case of adenoid cystic carcinoma (ACC) metastasis from a submandibular gland to the larynx. Both treatments of distant metastasis of ACC and secondary laryngeal tumor are challenging. Despite its slow progression, ACC is associated with high rates of local recurrence, distant metastasis, and poor prognosis.

New Scoring System for Evaluating Patulous Eustachian Tube Patients.

Objective: To assess the efficacy of patulous Eustachian tube handicap inventory (PHI) for patulous Eustachian tube (PET) patients.

Study Design: Prospective.

Setting: Tertiary referral center.

Computed tomography findings of the bony portion of the Eustachian tube with or without patulous Eustachian tube patients.

To investigate the bony segment of the Eustachian tube (ET) using sitting 3D-computed tomography (CT) scans in Patulous Eustachian tube (PET) patients. A retrospective survey of medical records in Sen-En Hospital identified 43 patients and 43 ears with PET and 30 patients and 30 ears with sensorineural hearing loss or vertigo patients as the control. Diagnosis of PET was based on the Proposal on PET Diagnosis Criteria announced by the Otological Society of Japan in 2012.

Effectiveness of Kobayashi plug for 252 ears with chronic patulous Eustachian tube.

Conclusions: Trans-tympanic plugging of the Eustachian tube (ET) with the silicone plug (Kobayashi Plug) induced long-term effectiveness for over 80% of chronic and severe patulous ET (PET) patients. The New Kobayashi Plug was more effective with fewer complication of plug descent to the pharyngeal orifice.

Objective: To investigate the effectiveness and complications of trans-tympanic plugging of the ET using a Kobayashi Plug for chronic PET.

Tubal function tests with optional myringotomy detect Eustachian tube closing failure in acquired pars flaccida retraction cholesteatoma.

Objective: To re-evaluate the incidence of Eustachian tube closing failure in acquired middle ear cholesteatoma.

Method: Thirty-one cases with acquired middle ear cholesteatoma who received surgery were enrolled. Presence of Eustachian tube closing failure was determined through two Eustachian tube function tests.

Relationship Between Clinical Test Results and Morphologic Severity Demonstrated by Sitting 3-D CT in Patients With Patulous Eustachian Tube.

Objective: To investigate the correlation of sitting 3-D computed tomography (CT) scans of the Eustachian tube (ET) with subjective and objective findings in patients with patulous Eustachian tube (PET).

Study Design: Retrospective.

Setting: Tertiary referral center.

Effect of intratympanic application of efinaconazole 10 % solution in the guinea pig.

Efinaconazole 10 % solution is a new triazole antifungal agent developed for the topical treatment of fungal infections of the nails. The current study examined the effect of intratympanic application of efinaconazole 10 % solution in the guinea pig ear. Sixteen male Hartley guinea pigs (weight 501-620 g) were divided into 3 groups to be treated with efinaconazole 10 % solution, gentamicin (50 mg/mL), or saline solution.

Bilateral endoscopic endonasal marsupialization of nasopalatine duct cyst.

Nasopalatine duct cysts are the most common non-odontogenic cysts in the maxilla, and are conventionally treated through a sublabial or palatine approach. Recently, the endoscopic approach has been used, but experience is extremely limited. We treated a 29-year-old male with nasopalatine duct cyst by endoscopic marsupialization, but paresthesia of the incisor region occurred after surgery.

Ototoxic effect of Ultrastop antifog solution applied to the guinea pig middle ear.

Objectives: Recent advances in endoscopic technology have allowed its application to middle ear surgery. An antifog agent is necessary for endoscopy because moisture and blood may obscure visibility. Ultrastop is one of the most commonly used antifog agents.

Ototoxic effect of daptomycin applied to the guinea pig middle ear.

Conclusion: Daptomycin applied topically at a concentration of 50 mg/ml caused mild but statistically significant hearing impairment. Outer hair cells were not damaged by daptomycin. Great care must be taken when there is a chance that daptomycin can reach the middle ear.

Septal deviation is associated with maxillary sinus fungus ball in male patients.

Fungus is one of the causes of chronic rhinosinusitis. If the fungus occupies the sinus but does not invade the sinonasal mucosa, this is called sinus fungus ball. Any association between anatomical variations and fungus ball remains unclear.

Change in endocochlear potential during experimental insertion of a simulated cochlear implant electrode in the guinea pig.

Objective: Preservation of residual hearing during cochlear implantation is important. This study investigated changes in endocochlear potential (EP) during simulated cochlear implant (CI) electrode insertion.

Study Design: Laboratory animal study.

Association between septal deviation and sinonasal papilloma.

Sinonasal papilloma is a common benign epithelial tumor of the sinonasal tract and accounts for 0.5% to 4% of all nasal tumors. The etiology of sinonasal papilloma remains unclear, although human papilloma virus has been proposed as a major risk factor.

Frequency characteristics of contralateral sound suppression of 40-Hz auditory steady-state response.

Sound presented to the contralateral ear suppresses the amplitude of the 40-Hz auditory steady-state response (ASSR). The frequency characteristics of this suppression of the 40-Hz ASSR for amplitude modulated (AM) tones at 1,000 Hz (79-dB SPL) were examined in 12 healthy volunteers (10 males and 2 females, mean age 32.3 years) using contralateral AM tones (500, 1,000, 2,000, and 4,000 Hz) and 1/3 octave-band noise (500, 1,000, 2,000, and 4,000 Hz).

Management of patulous eustachian tube with habitual sniffing.

Objectives: Evaluation of the effect of conservative and surgical treatment in patients with patulous Eustachian tube (PET) associated with habitual sniffing.

Study Design: Retrospective case review.

Setting: University hospital otolaryngology department.

Effect of aspiration of perilymph during stapes surgery on the endocochlear potential of guinea pig.

Objective: Suction applied to the vestibule through the oval window during stapes surgery is considered a primary risk for postoperative sensorineural hearing impairment. This study investigated the mechanism of acute phase change in cochlear function caused by aspiration of the opened oval window.

Study Design: Guinea pig model.