Electromyographical Recording of the Electrically Elicited Stapedius Reflex via a Bipolar Hook Electrode

Abstract

Intraoperative stapedius reflex recording by bipolar electromyography via a hook electrode is feasible. Further research will show whether these signals may be used for establishing a self-adjusting speech processor.

How reliable is visual assessment of the electrically elicited stapedius reflex threshold during cochlear implant surgery, compared with tympanometry?

“…10 These findings were in good accordance with those of Clemen and Kipke (in rats) and Almquist et al (in humans). 10 These findings were in good accordance with those of Clemen and Kipke (in rats) and Almquist et al (in humans).…”

The use of a surgical planning tool for evaluating the optimal surgical accessibility to the stapedius muscle via a retrofacial approach during cochlear implant surgery: a feasibility study

“…In total, 30 Dyna-CT images of the temporal bone and 5 cochlear implant surgery protocols were collected within a surgical planning tool prospective observational study including 30 patients (15 women and 15 men; 61 ± 20 years). The datasets are the same previously analyzed in [3]. The institutional ethics committee approved the study protocol (no.…”

“…The tool described in this work requires as input a set of 3D surface files in STL format, product of segmentation and 3D reconstruction of anatomical imaging data. For the present study and due to the numerous advantages of Dyna-CT in otology, the acquisition was performed as recently described in [3]. Briefly, Dyna-CT is a special flat-panel computed tomography combining a rotational angiographic C-arm units with flat-panel detectors.…”

“…While this technique is very reliable, it requires the EMG electrodes to be effectively and safely placed on the SM. Recently, we showed that retrofacial access to the unbent distal part of the SM, planned in advance and based on the analysis of high-resolution computed tomography (CT) datasets of the temporal bone and 3D reconstructions complies with these requirements [3]. To realize a resolution to visualize the configuration of the SM in detail, Dyna-CT datasets were used.…”

“…To realize a resolution to visualize the configuration of the SM in detail, Dyna-CT datasets were used. Beyond its high spatial resolution of temporal bone structures, Dyna-CT allowed a fast acquisition of 3D datasets with relative low radiation dose [3]. The retrofacial approach corresponds to drilling posteriorly to the FN, rather than anteriorly as in the facial recess approach normally used on CI surgery.…”