Cochlear implantation outcomes in children with common cavity deformity; a retrospective study

Zhang, Li; Qiu, Jianxin; Qin, Feifei; Mei, Zhong Lei; Shah, Gyanendra

doi:10.1016/j.joto.2017.03.004

Cited by 12 publications

(8 citation statements)

References 21 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our study also identified a poor prognosis, especially in language performance. Nevertheless, there are obvious advantages of cochlear implantation that justify the risks of the surgery [ 14 , 15 ]. Perilymph gushers have been commonly reported in previous studies; however, none of the enrolled patients in this study had severe gushers that required extensive sealing [ 9 , 11 , 16 , 17 ].…”

Section: Discussionmentioning

confidence: 99%

Cochlear Implants for Patients With Common Cavity Deformities and the Impact of Electrode Positioning

Bae

Choi

2022

Clin Exp Otorhinolaryngol

View full text Add to dashboard Cite

Objectives. Common cavity deformity is a rare congenital bony labyrinth malformation associated with profound hearing loss. Cochlear implants are widely used for hearing rehabilitation for common cavity deformities; however, the reported prognosis is poor. Due to the deformed anatomical structure, it is important to consider the position of the electrodes to maximize the performance of the cochlear implant. The present study discusses the impact of electrode placement on hearing outcomes. Methods.A retrospective medical chart review of eight common cavity deformity patients (10 cochlear implants) who received cochlear implants was performed at a single university hospital. In all eight patients, implant surgery was performed using single-slit labyrinthotomy. Electrodes wer e manually bent before insertion to prevent misplacement and to reduce physical damage to the neuroepithelium.Results. Four of the 10 electrodes were misplaced, with their tips placed in the anterior semicircular canal or internal auditory canal. However, after implant surgery, all patients-including those with misplaced electrodes-gained auditory perception and improved hearing function. One patient who had electrodes that did not contact the inner wall of the cavity showed limited activity of the electrodes (27%) compared to others (64%-100%).Conclusions. Proper contact of the electrode with the inner wall was more likely to be important for cochlear implant success in cases of common cavity deformity than appropriate placement of the electrode tip.

show abstract

Section: Discussionmentioning

confidence: 99%

Cochlear Implants for Patients With Common Cavity Deformities and the Impact of Electrode Positioning

Bae

Choi

2022

Clin Exp Otorhinolaryngol

View full text Add to dashboard Cite

show abstract

“…Three studies included a preoperative and postoperative CAP score. Zhang et al evaluated children with CC deformity against a control group matched in sex, age, and time of implantation (n = 6) [20]. Both the control and IEM groups showed improvement, though patients with CC deformity improved significantly less than those with normal inner ear anatomy.…”

Section: Cap Scorementioning

confidence: 99%

“…Both the control and IEM groups showed improvement, though patients with CC deformity improved significantly less than those with normal inner ear anatomy. The mean CAP improvement in patients with IEMs was 3.50 compared to 9.50 in the control group [20]. Melo et al assessed CAP-II scores in patients with and without IEMs that received CIs.…”

Section: Cap Scorementioning

confidence: 99%

Systematic review of cochlear implantation in patients with inner ear malformations

Shah

Walters²,

Langlie³

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Objectives To evaluate the outcomes of cochlear implantation in patients with severe to profound sensorineural hearing loss due to inner ear malformations (IEMs) when compared to patients without IEMs. We discussed audiological outcomes such as open-set testing, closed-set testing, CAP score, and SIR score as well as postoperative outcomes such as cerebrospinal fluid gusher and incomplete insertion rate associated with cochlear implantation in individuals with IEMs. Data sources PubMed, Science Direct, Web of Science, Scopus, and EMBASE databases. Review methods After screening a total of 222 studies, twelve eligible original articles were included in the review to analyze the speech and hearing outcomes of implanted patients with IEMs. Five reviewers independently screened, selected, and extracted data. The “Tool to Assess Risk of Bias in Cohort Studies” published by the CLARITY group was used to perform quality assessment on eligible studies. Systematic review registration number: CRD42021237489. Results IEMs are more likely to be associated with abnormal position of the facial nerve, raising the risk of intraoperative complications. These patients may benefit from cochlear implantation, but audiological outcomes may also be less favorable than in individuals without IEMs. Furthermore, due to the risk of cerebrospinal fluid gusher, incomplete insertion of electrodes, and postoperative facial nerve stimulation, surgeons can employ precautionary measures such as preoperative imaging and proper counseling. Postoperative imaging is suggested to be beneficial in ensuring proper electrode placement. Conclusions Cochlear implants (CIs) have the potential to provide auditory rehabilitation to individuals with IEMs. Precise classification of the malformation, preoperative imaging and anatomical mapping, appropriate electrode selection, intra-operative techniques, and postoperative imaging are recommended in this population.

show abstract

“…-Dị dạng khoang chung là dị dạng tiền đình và ốc tai hợp lưu tạo thành một khoang chung, không có trụ ốc ở trung tâm, có dây TK ốc taitiền đình chung. Một số tác giả cho thấy cấy OTĐT với BN dị dạng khoang chung là giải pháp an toàn và hiệu quả, mặc dù phẫu thuật khó khăn [8]. Chúng tôi có 7 tai dị dạng khoang chung, các tai này đều có kích thước lớn có thể đặt được điện cực vào khoang chung vì vậy có thể cấy OTĐT trong những trường hợp này.…”

Section: Kết Quả Nghiên Cứuunclassified

Vai Trò Của Cắt Lớp Vi Tính Và Cộng Hưởng Từ Xương Thái Dương Trong Chỉ Định Cấy Ốc Tai Điện Tử

Chung¹,

Thành²,

Đức³

2021

VMJ

View full text Add to dashboard Cite

Mục đích: Mô tả đặc điểm hình ảnh cắt lớp vi tính (CLVT) và cộng hưởng từ (CHT) xương thái dương bệnh nhân (BN) điếc tiếp nhận để lựa chọn BN cho phẫu thuật cấy ốc tai điện tử (OTĐT). Đối tượng và phương pháp nghiên cứu: mô tả đặc điểm hình ảnh tai trong, dây thần kinh (TK) ốc tai kết hợp với thính lực để đưa ra chỉ định cấy ốc tai điện tử ở 132 BN nhi điếc tiếp nhận. Hình ảnh dây TK ốc tai được đánh giá trên chuỗi xung cộng hưởng từ T2 3D gradient-echo phân giải cao. Hình ảnh tai trong được đánh giá trên CHT và CLVT phân giải cao. Kết quả: nghiên cứu gồm 132 BN với 264 tai trong đó 161 tai (61%) không dị dạng tai trong, 34 tai (12,9%) ốc tai bình thường có bất thường TK ốc tai, 65 tai (24,6%) dị dạng tai trong và 4 tai (1,5%) cốt hoá mê đạo. Những BN bất sản TK ốc tai và không có sóng V ABR, BN dị dạng nặng ốc tai, BN cốt hoá ốc tai mức độ nặng không còn chỉ định cấy OTĐT. Kết luận: chỉ định cấy ốc tai điện tử phụ thuộc vào tình trạng tai trong và sự có mặt của dây TK ốc tai trên hình ảnh hoặc đáp ứng thính giác trên thính lực.

show abstract

Cochlear implantation outcomes in children with common cavity deformity; a retrospective study

Cited by 12 publications

References 21 publications

Cochlear Implants for Patients With Common Cavity Deformities and the Impact of Electrode Positioning

Cochlear Implants for Patients With Common Cavity Deformities and the Impact of Electrode Positioning

Systematic review of cochlear implantation in patients with inner ear malformations

Vai Trò Của Cắt Lớp Vi Tính Và Cộng Hưởng Từ Xương Thái Dương Trong Chỉ Định Cấy Ốc Tai Điện Tử

Contact Info

Product

Resources

About