Endoscopic versus microscopic management of congenital ossicular chain anomalies: our experiences with 29 patients

Wu, Chen‐Chi; Chen, Yi‐Hau; Yang, Ting‐Hua; Lin, Kai‐Wei; Lee, S.Y.; Liu, T.C.; Hsu, Chuan-Jan

doi:10.1111/coa.12778

Cited by 12 publications

(14 citation statements)

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“…After best surgical efforts to expose the round window membrane in its entirety, preserving the facial nerve, chorda tympani and posterior ear canal wall, CORRESPONDENCE: OUR EXPERIENCE | 357 a 0-degree rigid endoscope (3 mm outer diameter, 14 cm length; Karl Storz, Germany) was inserted into, but not through, the posterior tympanotomy, to assess the middle ear anatomy. 7 For each ear, the accessibility of the round window membrane was evaluated under both microscopic and endoscopic views and was graded according to the St. Thomas Hospital (STH) classification, namely Type I for 100%, Type IIa for 51%-99%, Type IIb for 1%-50% and Type III for 0% exposure of the round window membrane. 2 The optimal route for electrode insertion was then determined based on the accessibility of the round window membrane.…”

Section: Intra-operative Assessment Of Round Window Membrane Exposurementioning

confidence: 99%

Using endoscopy to locate the round window membrane during cochlear implantation: Our experience with 25 patients

Chen

Liu

Yang

et al. 2017

Clinical Otolaryngology

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Section: Intra-operative Assessment Of Round Window Membrane Exposurementioning

confidence: 99%

Using endoscopy to locate the round window membrane during cochlear implantation: Our experience with 25 patients

Chen

Liu

Yang

et al. 2017

Clinical Otolaryngology

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“…[1][2][3][4][5][6][7][8] Endoscopic ossicular chain reconstruction has recently become a topic of interest as well. 1,7,9,10 Because endoscopes can better visualise the middle-ear structures, 11 it can be hypothesised that endoscopic ear surgery may improve the post-operative outcomes of patients with conductive hearing loss due to ossicular chain disruption. 1…”

Section: Background and Rationalementioning

confidence: 99%

“…Previous studies have shown similar audiological outcomes after endoscopic and microscopic ossicular chain reconstruction. 4,9,[16][17][18][19] However, the representation of post-operative audiometric data was heterogeneous, 20 and some studies have reported only the gain in the air conduction thresholds or closure of the air-bone gap. 3,9 In our study, we used the general linear model of repeated-measures analysis of variance to independently assess the effects of two different ossicular chain reconstruction techniques (Table 3).…”

Section: Interpretation and Generalisabilitymentioning

confidence: 99%

“…4,9,[16][17][18][19] However, the representation of post-operative audiometric data was heterogeneous, 20 and some studies have reported only the gain in the air conduction thresholds or closure of the air-bone gap. 3,9 In our study, we used the general linear model of repeated-measures analysis of variance to independently assess the effects of two different ossicular chain reconstruction techniques (Table 3). A previous study reported that the post-operative hearing outcomes were better in the endoscopic ossicular chain reconstruction group than in the microscopic ossicular chain reconstruction group; however, this result was attributed to the better pre-operative hearing levels of the endoscopic ossicular chain reconstruction cases.…”

Section: Interpretation and Generalisabilitymentioning

confidence: 99%

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Ossicular chain reconstruction: endoscopic or microscopic?

Günerı

Çetin

2020

J. Laryngol. Otol.

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ObjectiveTo compare the results of endoscopic and microscopic ossicular chain reconstruction surgery.MethodsPatients undergoing ossicular chain reconstruction surgery via an endoscopic (n = 31) or microscopic (n = 34) technique were analysed for age, gender, Middle Ear Risk Index, ossicular chain defect, incision type, ossicular chain reconstruction surgery material, mean air conduction threshold, air–bone gap, air–bone gap gain, word recognition score, mean operation duration and mean post-operative follow up.ResultsPost-operative air conduction, air–bone gap and word recognition score improved significantly in both groups (within-subject p < 0.001 for air conduction and air–bone gap, and 0.026 for word recognition score); differences between groups were not significant (between-subject p = 0.192 for air conduction, 0.102 for air–bone gap, and 0.709 for word recognition score). Other parameters were similar between groups, except for incision type. However, endoscopic ossicular chain reconstruction surgery was associated with a significantly shorter operation duration (p < 0.001).ConclusionEndoscopic ossicular chain reconstruction surgery can achieve comparable surgical and audiological outcomes to those of microscopic ossicular chain reconstruction surgery in a shorter time.

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“…However, up to date, only few studies with very limited cases reported endoscopic ossiculoplasty in ICOCM. 9,10 Herein, we report a series cases of ICOCM from China, to evaluate the surgical results of endoscopic ossiculoplasty.…”

Section: Introductionmentioning

confidence: 99%

Endoscopic Ossiculoplasty for the Management of Isolated Congenital Ossicular Chain Malformation: Surgical Results in 16 Ears

Zhang

Long

et al. 2020

Ear Nose Throat J

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Objective: The aim of this study is to describe the clinical characteristics and intraoperative findings and further evaluate the efficacy of endoscopic ossiculoplasty for the management of isolated congenital ossicular chain malformation. Methods: A retrospective study was performed on 16 ears (15 patients) with the isolated congenital ossicular chain malformation who underwent endoscopic ossiculoplasty in our department from May 2017 to January 2019. Endoscopic exploratory tympanotomy was conducted to check the ossicular chain; at the same time, endoscopic ossiculoplasty was performed depending on intraoperative findings. Air-conduction thresholds, bone-conduction thresholds, and air-bone gaps (ABGs) were measured before and after surgery, and the hearing outcome was assessed at 6 months postoperatively. Results: The most common malformations of ossicular chain were the missing of the incus long process and stapes suprastructure. A serial assessment of the hearing status was conducted before and 6 months after surgery. It showed the mean postoperative pure-tone average (PTA) was significantly reduced, and the mean postoperative ABG was obviously closed, respectively ( P < .001). The mean PTA gain was 36.3 ± 8.6 dB, and the ABG closure was 35.1 ± 8.3 dB; ABG closure to 20 dB or less and ABG closure to 10 dB or less were achieved in 14 cases (87.5%) and 5 cases (31.3%), respectively. No differences were observed in postoperative hearing outcome between type Ⅲ cases and type Ⅳ cases; however, cases with partial ossicular replacement prosthesis implantation showed a larger hearing gain ( P = .049) and a higher proportion of postoperative ABG less than 10 dB ( P = .021). No facial palsy and significant sensorineural hearing loss occurred; all patients completed the surgery without the need of canalplasty, and the chorda tympani nerve was preserved in all patients. Conclusions: This research showed endoscopic surgery was effective in the diagnosis and management of isolated congenital ossicular chain malformation; the endoscopic ossiculoplasty provides an alternative method to manage congenital ossicular chain malformation, with comfortable hearing outcome and the advantage of excellent vision and less invasion.

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Endoscopic versus microscopic management of congenital ossicular chain anomalies: our experiences with 29 patients

Cited by 12 publications

References 10 publications

Using endoscopy to locate the round window membrane during cochlear implantation: Our experience with 25 patients

Using endoscopy to locate the round window membrane during cochlear implantation: Our experience with 25 patients

Ossicular chain reconstruction: endoscopic or microscopic?

Endoscopic Ossiculoplasty for the Management of Isolated Congenital Ossicular Chain Malformation: Surgical Results in 16 Ears

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