Interpreting the interphase gap effect on the electrically evoked compound action potential

Yuan, Yi; Skidmore, Jeffrey; He, Shuman

doi:10.1121/10.0009383

Cited by 3 publications

(1 citation statement)

References 22 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Induction is a popular obstetric technique, although it is difficult for doctors to anticipate whether or not it will be successful. About a third of inductions result in a caesarean birth (10) .…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Different Scoring Systems for Predicting Successful Induction of Labor: A Cross-Sectional Study

2023

The Egyptian Journal of Hospital Medicine

View full text Add to dashboard Cite

Background: Nowadays, inducing of labor (IOL) is a routine treatment in obstetric practice. For different maternal and fetal reasons, IOL is currently performed for 20 percent of pregnancies. Limited to non-pregnant women, prediction score methods for IOL success have indicated that a good preoperative cervical exam is the most important factor. AIM: To evaluate the accuracy of Different Scoring Systems for Predicting Successful Induction of Labor. Patients and methods: the study was conducted on department obstructs and gynecology faculty of medicine Assiut University on 410 patients and they divided into CS (n= 104) and Vaginal delivery (n= 306) . Results: there was a statistical significant difference between groups regarding Kaplan Meier analysis of time to delivery based Bishop score and Manipal U/S scoring system, Protocol of induction and Pregestational DM. There was no statistical significant difference between groups regarding to Accuracy of different scoring system in prediction of successful induction. Conclusion: Predicting whether or not a woman will have a successful vaginal birth following induction of labor is becoming increasingly important as a result of the possible impact on healthcare spending, as evidenced by the rapid increase in the development of prediction models. But because most published models lack external validation and there are limitations in scope, methodology, and/or measurement of effectiveness in clinical settings, it is difficult to endorse any one model for widespread clinical usage.

show abstract

Section: Discussionmentioning

confidence: 99%

Accuracy of Different Scoring Systems for Predicting Successful Induction of Labor: A Cross-Sectional Study

2023

The Egyptian Journal of Hospital Medicine

View full text Add to dashboard Cite

show abstract

Comparison of response properties of the electrically stimulated auditory nerve reported in human listeners and in animal models

et al. 2022

View full text Add to dashboard Cite

The Inter-Phase Gap Offset Effect as a Measure of Neural Health in Cochlear Implant Users With Residual Acoustic Hearing

Sijgers,

Röösli,

Bertschinger

et al. 2024

Ear &Amp; Hearing

View full text Add to dashboard Cite

Objectives: The inter-phase gap (IPG) offset effect is defined as the dB offset between the linear parts of electrically evoked compound action potential (ECAP) amplitude growth functions for two stimuli differing only in IPG. The method was recently suggested to represent neural health in cochlear implant (CI) users while being unaffected by CI electrode impedances. Hereby, a larger IPG offset effect should reflect better neural health. The aims of the present study were to (1) examine whether the IPG offset effect negatively correlates with the ECAP threshold and the preoperative pure-tone average (PTA) in CI recipients with residual acoustic hearing and (2) investigate the dependency of the IPG offset effect on hair cell survival and intracochlear electrode impedances. Design: Seventeen adult study participants with residual acoustic hearing at 500 Hz undergoing CI surgery at the University Hospital of Zurich were prospectively enrolled. ECAP thresholds, IPG offset effects, electrocochleography (ECochG) responses to 500 Hz tone bursts, and monopolar electrical impedances were obtained at an apical, middle, and basal electrode set during and between 4 and 12 weeks after CI surgery. Pure-tone audiometry was conducted within 3 weeks before surgery and approximately 6 weeks after surgery. Linear mixed regression analyses and t tests were performed to assess relationships between (changes in) ECAP threshold, IPG offset, impedance, PTA, and ECochG amplitude. Results: The IPG offset effect positively correlated with the ECAP threshold in intraoperative recordings (p < 0.001) and did not significantly correlate with the preoperative PTA (p = 0.999). The IPG offset showed a postoperative decrease for electrode sets that showed an ECochG amplitude drop. This IPG offset decrease was significantly larger than for electrode sets that showed no ECochG amplitude decrease, t(17) = 2.76, p = 0.014. Linear mixed regression analysis showed no systematic effect of electrode impedance changes on the IPG offset effect (p = 0.263) but suggested a participant-dependent effect of electrode impedance on IPG offset. Conclusions: The present study results did not reveal the expected relationships between the IPG offset effect and ECAP threshold values or between the IPG offset effect and preoperative acoustic hearing. Changes in electrode impedance did not exhibit a direct impact on the IPG offset effect, although this impact might be individualized among CI recipients. Overall, our findings suggest that the interpretation and application of the IPG offset effect in clinical settings should be approached with caution considering its complex relationships with other cochlear and neural health metrics.

show abstract

Interpreting the interphase gap effect on the electrically evoked compound action potential

Cited by 3 publications

References 22 publications

Accuracy of Different Scoring Systems for Predicting Successful Induction of Labor: A Cross-Sectional Study

Accuracy of Different Scoring Systems for Predicting Successful Induction of Labor: A Cross-Sectional Study

Comparison of response properties of the electrically stimulated auditory nerve reported in human listeners and in animal models

The Inter-Phase Gap Offset Effect as a Measure of Neural Health in Cochlear Implant Users With Residual Acoustic Hearing

Contact Info

Product

Resources

About