Factors Prognostic of Season-Associated Sudden Sensorineural Hearing Loss: A Retrospective Observational Study

Ryu, In Yong; Park, Sang Hyun; Park, Eun Bin; Kim, Ho-Joong; Kim, Sang Hoon

doi:10.7874/jao.2017.21.1.44

Cited by 15 publications

(18 citation statements)

References 16 publications

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“…The prognostic significance of 3D FLAIR images in SSNHL is an interesting matter . With regard to the prognosis of ISSNHL, one study concluded that the presence of an abnormality on labyrinthine MR imaging was a poor prognostic indicator, especially in those with severe or profound hearing loss .…”

Section: Discussionmentioning

confidence: 99%

“…The prognostic significance of 3D FLAIR images in SSNHL is an interesting matter. 17,18 With regard to the prognosis of ISSNHL, one study concluded that the presence of an abnormality on labyrinthine MR imaging was a poor prognostic indicator, especially in those with severe or profound hearing loss. 16 Another study concluded that a high-intensity signal on 3D FLAIR MRI is a subsidiary phenomenon related to dizziness rather than a single poor prognostic factor, on the assumption that a hyperintensity in vestibular organs is related to the presence of vertigo.…”

Section: Clinical Applicability Of the Studymentioning

confidence: 99%

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The clinical value of 4‐hour delayed‐enhanced 3D‐FLAIR MR images in sudden hearing loss

Byun

Chung

Lee

et al. 2019

Clinical Otolaryngology

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Objective The aim of this study was to investigate the clinical significance of 4‐hour delayed‐enhanced 3.0 Tesla (3T) 3D‐fluid‐attenuated inversion recovery (FLAIR) MR imaging in sudden sensorineural hearing loss (SSNHL). Study design Case series with comparisons. Setting Tertiary referral centre. Participants Eighty‐seven idiopathic SSNHL patients were enrolled between January 2015 and December 2016 and received high dose steroid therapy and intratympanic steroid injections as salvage treatment. Intervention Pre‐contrast, 10‐minute and 4‐hour delayed‐enhanced 3D‐FLAIR MR images were obtained using double‐dose IV gadolinium. Main outcome measures The results of treatment were evaluated according to Siegel's criteria 3 months after the start of treatment. Where possible lesion‐side laterality of the inner ear was identified based on the MR images, the associations between MR findings and other clinical parameters were analysed, and the relationships between hearing recovery and MR image findings were assessed. Results Lesion‐side laterality was identified on MRI in 52 (59.7%), 18 (20.1%) and 8 (9.2%) patients, based on 4‐hour delayed, 10‐minute delayed, and pre‐contrast images, respectively. The hearing recovery rate was significantly lower in the patients with lesion‐side laterality on 4‐hour delayed images (P < 0.001). In a multivariate analysis, lesion‐side laterality on 4‐hour delayed images was associated with poor prognosis (OR = 5.6) after adjusting other prognostic factors including initial hearing level, lesion‐side laterality on 10‐min delayed images and presence of vertigo. In addition, as the extent of enhancement in the inner ear increased the probability of hearing recover decreased (P = 0.001). Conclusions Contrast enhancement of inner ear structures can be seen on 4‐hour delayed‐enhanced 3T 3D‐FLAIR MR images in idiopathic SSNHL. Asymmetric lesion‐side enhancement of the inner ear may be associated with a poor prognosis.

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Section: Discussionmentioning

confidence: 99%

Section: Clinical Applicability Of the Studymentioning

confidence: 99%

The clinical value of 4‐hour delayed‐enhanced 3D‐FLAIR MR images in sudden hearing loss

Byun

Chung

Lee

et al. 2019

Clinical Otolaryngology

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“…In the study conducted by Ryu et al [14] to evaluate whether prognosis of ISSNHL was associated with the initial season as well as the factors that may influence the prognosis in every season or not, they revealed that recovery rates of hearing of 318 patients did not show a significant difference by months and there was no correlation between mean temperature and daily temperature range in onset period of disease and recovery rates. This study revealed that recovery rates did not show a significant difference among patients with onset during these four seasons.…”

Section: Discussionmentioning

confidence: 99%

“…In this regard, general characteristics of the weather such as atmospheric pressure and temperature as well as their variation and covariation have been commonly investigated. [8][9][10][11][12][13][14] The results of studies assessing the relationship between ISSNHL and parameters of weather condition in the literature are different from the results of the studies we could reach. Our clinical observations revealed that the number of cases with ISSNHL increased in certain periods.…”

mentioning

confidence: 82%

Retrospective evaluation of the relationship between seasonal factors and idiopathic sudden sensorineural hearing loss

Durmuş¹,

Bora²,

Çam³

et al. 2018

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Özet: ‹klim flartlar› ile idiyopatik ani sensörinöral iflitme kayb› aras›ndaki iliflkinin retrospektif de¤erlendirmesi Amaç: Kendi yaflad›¤›m›z bölgenin iklim flartlar› ve meteorolojik parametrelerin idiyopatik ani sensörinöral iflitme kayb›n›n (ISSNHL) patogenezi ve prognozu üzerinde bir etkisinin olup olmad›¤›n› arafl-t›rmay› amaçlad›k. Yöntem: Bölümümüzde tedavileri yap›lm›fl olan 68 ISSNHL tan›s› olan hasta retrospektif olarak incelendi. Ayl›k ortam s›cakl›¤›, maksimum ve minimum s›cakl›k, ba¤›l nem, atmosfer bas›nc› ve ya¤›fl mik-tar›n› içeren meteorolojik veriler, Sivas Meteoroloji Müdürlü¤ü gözlem istasyonundan elde edildi. ‹klimsel veriler ile ISSNHL aras›ndaki iliflkileri araflt›rmak için hastal›¤›n bafllamas›ndan 10 gün önceki ve tedaviye bafllanmas›ndan itibaren 21 günlük bir periyottaki meteorolojik veri de¤erleri kullan›ld›. Tedavi baflar›s›n›n de¤erlendirilmesinde ise Siegel kriterleri kullan›ld›. Bulgular: Olgular›n mevsimlere göre da¤›l›mlar› istatistiksel aç›dan de¤erlendirildi¤inde ISSNHL ile mevsimler aras›ndaki iliflkinin istatistiksel aç›dan anlaml› oldu¤u izlendi (p<0.05; p=0.008). Siegel kriterleri ile mevsim aras›ndaki de¤iflim de istatistiksel aç›dan anlaml› idi (p<0.001). ISSNHL'li olgular›n Siegel kriterlerine göre iflitmelerindeki düzelme ile meteorolojik parametreler de¤erlendirildi¤inde, tedavi öncesi 10 günlük dönemde minimum, maksimum, ortalama hava s›cakl›¤›; minimum bas›nç ve ya¤›flla istatistiksel olarak anlaml› bir farkl›l›k oldu¤u tespit edildi. Bununla birlikte, tedavi sonras› 21 günlük periyottaki meteorolojik de¤iflkenlerden sadece ya¤›fl miktar› ile Siegel kriterlerine göre hastalar›n iflitmelerindeki düzelme aras›nda istatistiksel aç›dan bir korelasyon söz konusu idi (p<0.005). Sonuç: Çal›flmam›z ya¤›fl miktar› ile ISSNHL'nin hem patogenezi hem de prognozu aras›nda bir iliflki olabilece¤ini iflaret eden ilk çal›flmad›r. Literatürde yer alan bu konuda yap›lm›fl çal›flmalar›n sonuçlar› farkl›l›klar göstermekle birlikte ISSNHL ile s›cakl›k, bas›nç, ya¤›fl ve mevsim aras›ndaki iliflkinin de göz ard› edilmemesi gerekti¤i kan›s›nday›z.

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“…For SSNHL, 45-65% of patients will regain their pre-loss hearing thresholds even without therapy, with average gains of 35 dB. Spontaneous recovery without treatment can occur within 2 weeks (30-80%), but the complete recovery occurs only in 35% of patients [Ryu et al, 2017].…”

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confidence: 99%

Effect of Antioxidant Vitamins as Adjuvant Therapy for Sudden Sensorineural Hearing Loss: Systematic Review Study

2018

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Importance: Sudden sensorineural hearing loss (SSNHL) is an otological emergency of unknown etiology. Recent reports showed that antioxidant drugs can benefit patients with SSNHL. This study attempted to evaluate the effect of adding antioxidant vitamins as an adjuvant therapy alongside with corticosteroids. Objective: To evaluate the effects of the 3 major antioxidant vitamins (A, C, and E) as an adjuvant therapy, administered with corticosteroids, for the treatment of SSNHL in adult patients (≥18 years). Data Sources: MEDLINE, EMBASE, PubMed, Web of Science and Cochrane electronic databases from January 1, 1995, through September 25, 2017. Study Selection: Published studies of adult patients who received antioxidant vitamins (A, C, E, or any combination of these vitamins) as an adjuvant therapy in addition to the regular treatment (corticosteroids) for SSNHL. Quality assessment was performed using the Cochrane Collaboration Tool for Assessing Risk of Bias. Data Extraction: Each study had a control group (conventional treatment + placebo) and a trial group (antioxidant vitamin(s) + conventional treatment). Results: From 446 manuscripts identified in the literature, 3 studies were included in the review with 279 patients. The most common vitamins used to treat SSNHL were the 3 major antioxidant vitamins A, C, and E, combined sometimes with other antioxidants such as selenium. Conclusions and Relevance: The success of the treatment is increased in patients who received antioxidant vitamins in combination with conventional therapy.

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Factors Prognostic of Season-Associated Sudden Sensorineural Hearing Loss: A Retrospective Observational Study

Cited by 15 publications

References 16 publications

The clinical value of 4‐hour delayed‐enhanced 3D‐FLAIR MR images in sudden hearing loss

The clinical value of 4‐hour delayed‐enhanced 3D‐FLAIR MR images in sudden hearing loss

Retrospective evaluation of the relationship between seasonal factors and idiopathic sudden sensorineural hearing loss

Effect of Antioxidant Vitamins as Adjuvant Therapy for Sudden Sensorineural Hearing Loss: Systematic Review Study

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