scholarly journals Relationship between platelet parameters and sudden sensorineural hearing loss: a systematic review and meta-analysis

2018 ◽  
Vol 38 (6) ◽  
Author(s):  
Shuaifei Ji ◽  
Xuemin Chen ◽  
Heng Shi ◽  
Babo Zhang ◽  
Shun Yao ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Meta Analysis ◽  
Geographical Area ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Distribution Width ◽  
Eastern Country ◽  
Standard Mean Difference ◽  
Significant Difference

Recent years, the discussion about whether platelets participant in the development of sudden sensorineural hearing loss (SSHL) continues and many studies on the relationship between them have come to our attention. Some studies believe that platelet parameters have significantly changed in patients with SSHL, while some not, controversially. Therefore, to investigate the association between platelet parameters, including mean platelet volume (MPV), platelet distribution width (PDW) and platelet count (PLT), and SSHL, expecting to resolve controversy and provide clinical evidence for diagnosis and monitoring of SSHL. Basic methods: Literature was retrieved searching electronic databases (PubMed, Embase, Cochrane, and Scopus) and searching references of related articles by hand. A total of 18 case–control studies involving 1837/1734 subjects (SSHL/control) were included. Meta-analysis showed there was no difference between the patients who suffered SSHL and healthy controls in MPV level [standard mean difference (SMD) (95% confidence interval (CI)) = 0.16 (−0.07, 0.40), I2 = 80%, P<0.00001] and PLT [SMD (95% CI) = −0.03(−0.18, 0.12), I2 = 73%, P<0.00001]. While PDW exhibited significant difference [SMD (95% CI) = 0.85 (0.20, 1.49), I2 = 93%, P<0.00001]. Subgroup analysis about geographical area suggested PLT have obvious evidence for SSHL in Eastern country [SMD (95% CI) = 0.23 (0.14, 0.33), I2 = 0%, P=0.81]. Our study did not support a correlation between MPV and SSHL, while PLT may have clinical significance for SSHL in Eastern country. With insufficient data to explore the resource of heterogeneity for PDW, there is no decisive conclusion reached.

Idiopathic Sudden Sensorineural Hearing Loss in Children: A Systematic Review and Meta-analysis

2020 ◽  
pp. 019459982097657
Author(s):  
Leonardo Franz ◽  
Chiara Gallo ◽  
Gino Marioni ◽  
Cosimo de Filippis ◽  
Andrea Lovato
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Case Reports ◽  
Meta Analysis ◽  
Treatment Options ◽  
Case Series ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Systemic Steroid ◽  
Significant Difference

Objective Idiopathic sudden sensorineural hearing loss (ISSNHL) is uncommon in children, and its treatment and outcome are debated. We aimed to critically review evidence in the literature about treatment options and functional outcomes of pediatric ISSNHL. Additionally, we performed a meta-analysis of the results of combined systemic-intratympanic steroid therapy versus solely systemic treatment. Data Sources A search was run in the PubMed, Scopus, and Google Scholar databases. Review Methods Included articles were original ISSNHL case series, written in English, with a population age ranging from 2 to 19 years. Other study types (single case reports, editorials, and reviews) and case series with known etiology of sudden hearing loss were excluded. Descriptive data of patients, treatments, outcomes, and possible prognostic factors were extracted and recorded for every included study. Results Twelve articles (7 cohort and 5 case-control studies) met all the selection criteria. Based on only the studies that provided sufficient data about clinical outcome, the pooled overall recovery rate was 67.91% (95% CI, 58.34%-77.48%). No studies showed a significant difference between systemic steroid and combined systemic-intratympanic steroid. The pooled odds ratio for combined systemic-intratympanic steroid versus systemic steroid alone was 0.90 (95% CI, 0.36-2.27) based on a random effects model, ruling out any significant difference between these treatment options. Conclusions The results of our meta-analysis did not support combination therapy more than systemic steroid alone. Further prospective clinical trials are necessary to establish evidence-based therapies.

scholarly journals The prognostic and predictive value of platelet parameters in diabetic and nondiabetic patients with sudden sensorineural hearing loss

2020 ◽  
Vol 15 (1) ◽  
pp. 884-889
Author(s):  
İbrahim Özcan ◽  
İbrahim Hira ◽  
Altan Kaya ◽  
Mehmet Yaşar ◽  
Murat Doğan ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Predictive Value ◽  
Study Groups ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Diabetic Patients ◽  
Microvascular Damage ◽  
Distribution Width ◽  
Group 1

AbstractBackgroundWe aimed to evaluate the association between mean platelet volume, platelet distribution width (PDW), platelet count (PC) and plateletcrit (PCT), and the presence of sudden sensorineural hearing loss (SSNHL) and treatment response. In the literature, there is no study that investigates the platelet functions in diabetic patients with SSNHL.MethodsThe patients were retrospectively assigned into Group 1 (68 diabetic patients with SSNHL), Group 2 (63 nondiabetic patients with SSNHL) and Group 3 (64 healthy controls).ResultsPC was not significantly different between the groups (p > 0.05). MPV, PDW and PCT values were significantly higher in Group 1 as compared to Groups 2 and 3 (p < 0.05). Platelet parameters were not significantly different between the patients who were responsive and nonresponsive to the treatment. Therefore, the platelet parameters did not affect prognosis significantly in this study samples (p > 0.05).ConclusionsThis study showed that platelet parameters did not have a significant effect as a prognostic and predictive value in diabetic and nondiabetic patients with SSNHL. Further studies with more homogenous and larger study groups investigating the platelet parameters are needed to demonstrate microvascular damage and vascular alterations induced by diabetes mellitus.

scholarly journals Association of αENaC p. Ala663Thr Gene Polymorphism With Sudden Sensorineural Hearing Loss

2021 ◽  
Vol 12 ◽  
Author(s):  
Jialei Chen ◽  
Jing He ◽  
Jing Luo ◽  
Shixun Zhong
Keyword(s):  
Hearing Loss ◽  
Gene Polymorphism ◽  
Sensorineural Hearing Loss ◽  
Allele Frequency ◽  
Low Frequency ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Control Group ◽  
Increased Risk ◽  
Significant Difference

Objective: The etiology of sudden sensorineural hearing loss (SSNHL) is still unknown. It has been demonstrated that normal endolymph metabolism is essential for inner ear function and that epithelial sodium channels (ENaC) may play an important role in the regulation of endolymphatic Na+. This study aimed to explore the potential association between αENaC p. Ala663Thr gene polymorphism and SSNHL.Methods: Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to examine the genotype and allele frequency of the αENaC p. Ala663Thr polymorphism in 20 cases of low-frequency SSNHL (LF-SSNHL), 19 cases of high-frequency SSNHL (HF-SSNHL), 31 cases of all frequency SSNHL (AF-SSNHL), 42 cases of profound deafness SSNHL (PD-SSNHL), and 115 normal controls.Results: The T663 allele was found to be significantly associated with an increased risk of LF-SSNHL (p = 0.046, OR = 2.16, 95% CI = 1.01–4.62). The TT genotype and T663 allele, on the other hand, conferred a protective effect for PD-SSNHL (AA vs. TT: p = 0.012, OR = 0.25, 95% CI = 0.08–0.74; A vs. T: p = 0.001, OR = 0.36, 95% CI = 0.21–0.61). However, there was no statistically significant difference in genotype or allele frequency between the two groups (HF-SSNHL and AF-SSNHL) and the control group.Conclusion: The αENaC p. Ala663Thr gene polymorphism plays different roles in different types of SSNHL.

scholarly journals A protocol for a network meta-analysis of interventions to treat patients with sudden sensorineural hearing loss

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Nadera Ahmadzai ◽  
Shaun Kilty ◽  
Dianna Wolfe ◽  
Jamie Bonaparte ◽  
David Schramm ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Meta Analysis ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing
Sign in / Sign up

Export Citation Format

Share Document