Effects of Chorda Tympani Section During Middle Ear Surgery

Moon, Cary N.; Pullen, E. W.

doi:10.1288/00005537-196304000-00004

Cited by 49 publications

(35 citation statements)

References 7 publications

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“…The rate of symptoms in this study was higher than in studies by Moon and Pullen (18.3%), Rice (49%), and Harbert et al (62.9%) [1,2,5]. The reason behind this may be that our study was a prospective study, and patients were questioned about their postoperative symptoms in detail during the 2 weeks of hospitalization.…”

Section: Discussioncontrasting

confidence: 72%

“…Further, otosclerosis is a common ear disease among the caucasian population [13,14]. Therefore, since the 1960s, several reports have focused on taste disturbance after stapes surgery [1,2,5].…”

Section: Discussionmentioning

confidence: 99%

“…Since the early days of stapes surgery, several reports have focused on taste disturbance following the surgery. On the basis of a patient questionnaire, Moon and Pullen reported that the symptom initially occurred in 28/ 153 patients (18.3%) and persisted for 6 months in 19/153 patients (12.4%) if the chorda tympani nerve (CTN) was preserved [1]. In addition, Rice reported that when the CTN was preserved, the symptoms appeared initially in 31/64 patients (48.4%) and in 10/64 patients (15.6%) at 3 months after surgery [2].…”

Section: Introductionmentioning

confidence: 99%

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Taste disturbance after stapes surgery – clinical and experimental study

Miuchi¹,

Sakagami²,

Tsuzuki³

et al. 2009

Acta Oto-Laryngologica

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Conclusion: Most of the clinical cases experienced taste disturbance after stapes surgery, and in a few cases this disturbance persisted for a long time. The animal experiment suggested the role of geniculate ganglion (GG) cells in nerve generation. Objectives: To clinically examine taste disorder and its recovery after stapes surgery and experimentally demonstrate a role of GG. Patients and methods: Taste function after preservation of chorda tympani nerve (CTN) in stapes surgery was prospectively investigated with a questionnaire and electrogustometry (EGM). Further, expression of neurotrophic factors in GG after injury of CTN was examined by in situ hybridization histochemistry (ISSH) and RT-PCR. Results: Among the cases, 15/18 (83.3%) were associated with taste disturbance and 6/18 (33.3%) were associated with tongue numbness 2 weeks after surgery; however, the symptoms ceased in 14/18 cases (77.8%). Two weeks after surgery, the EGM threshold was found to be elevated in 15/18 cases (83.3%), while in 10/18 cases (55.6%), it did not decrease until 1 year after surgery. Expression of ISSH and amplified bands of BDNF and GFR increased at 7 and 14 days after nerve injury in ipsilateral GGs and also increased at 7 days on the contralateral side.

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Section: Discussioncontrasting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Taste disturbance after stapes surgery – clinical and experimental study

Miuchi¹,

Sakagami²,

Tsuzuki³

et al. 2009

Acta Oto-Laryngologica

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show abstract

“…Alternatively, there may be cross-innervation from the contralateral CTN. Loss of bilateral CTNs leads to an impaired quality of life much more than a unilateral loss (3). There is evidence that CTN recovery is an ongoing process that therefore requires follow-up to assess fully.…”

Section: Discussionmentioning

confidence: 99%

Chorda Tympani Nerve Function After Middle Ear Surgery

Clark

O'Malley²

2007

Otology &Amp; Neurotology

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Despite the small patient cohort, the results support the hypothesis that iatrogenic chorda tympani nerve injury in surgery for cholesteatoma results in less postoperative taste disturbance than that for otosclerosis. This may be because the disease process of cholesteatoma renders the nerve hypofunctional. The situation after myringoplasty is less clear. A larger study may help validate these findings.

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“…After surgery, 44% to 80% of patients complained of taste dysfunction after being asked about taste change [37]. There was no correlation between degree of CTN injury (eg, preserve, sacrifi ce) during surgery and taste dysfunction [38].…”

Section: Specifi C Taste Change Caused By Ctn Injuries In Me Infl Ammmentioning

confidence: 99%

Relationship between pediatric obesity and otitis media with effusion

Lee¹

2009

Curr Allergy Asthma Rep

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Although eustachian tube dysfunction and bacterial infection have been shown to cause otitis media with effusion (OME), other etiologies are possible. One of the most common medical conditions in children is obesity, which can have effects throughout the body. Little is known, however, about the relationship between obesity and OME. Obesity may result in altered cytokine expression, gastroesophageal reflux disease, or fat accumulation, all of which may contribute to OME. Conversely, OME may induce taste changes through middle ear cavity inflammation, thus contributing to obesity. A similar pattern of taste change has been shown in patients with gustatory nerve anesthesia. Further research on the relationship between obesity and OME may help to determine the exact etiology of OME and contribute to our knowledge about the causes of obesity.

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Effects of Chorda Tympani Section During Middle Ear Surgery

Cited by 49 publications

References 7 publications

Taste disturbance after stapes surgery – clinical and experimental study

Taste disturbance after stapes surgery – clinical and experimental study

Chorda Tympani Nerve Function After Middle Ear Surgery

Relationship between pediatric obesity and otitis media with effusion

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