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Evaluation of Temporal Difference Limen in Preoperative Non-Invasive Ear Canal Audiometry as a Predictive Factor for Speech Perception after Cochlear Implantation.

Sinkkonen ST, Kronlund L, Hautamäki J, Jero J, Aarnisalo AA, Kentala E - Audiol Res (2014)

Bottom Line: Our results show that there is no correlation between TDL and postoperative speech perception.However, patient's advancing age correlates with longer TDL but not-directly with poorer speech perception.The results are in line with previous results concerning the lack of predictive value of preoperativ TDL measurements in CI patients.

View Article: PubMed Central - PubMed

Affiliation: Department of Otorhinolaryngology, Head & Neck Surgery, Helsinki University Central Hospital , Finland.

ABSTRACT
The temporal difference limen (TDL) can be measured with noninvasive electrical ear canal stimulation. The objective of the study wa to determine the role of preoperative TDL measurements in predicting patients' speech perception after cochlear implantation. We carried out a retrospective chart analysis of fifty-four cochlear implant (CI) patients with preoperative TDL and postoperative bisyllabic word recognition measurements in Helsinki University Central Hospital between March 1994 and March 2011. Our results show that there is no correlation between TDL and postoperative speech perception. However, patient's advancing age correlates with longer TDL but not-directly with poorer speech perception. The results are in line with previous results concerning the lack of predictive value of preoperativ TDL measurements in CI patients.

No MeSH data available.


Related in: MedlinePlus

Effect of patient age on speech perception after cochlear implant. Linear regression fit (solid line; 95% confidence bands, dashed lines) shows no correlation between age and speech perception (P=0.42).
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fig003: Effect of patient age on speech perception after cochlear implant. Linear regression fit (solid line; 95% confidence bands, dashed lines) shows no correlation between age and speech perception (P=0.42).

Mentions: Individual patients’ preoperative TDLs and SPs after CI are shown in Figure 1. Linear regression fit of speech perception scores after CI and preoperative TDL of the implanted ear gave a trend of shorter TDL corresponding to better SP (Figure 1), but the trend was not statistically significant. This led us to look at the correlation between TDL and age, which is shown in Figure 2. This linear regression fit reveals that there is a statistically significant correlation between age and TDL. When looking at patient age and SP, there is a trend of worse SP with advancing age, but the correlation is not statistically significant (Figure 3).


Evaluation of Temporal Difference Limen in Preoperative Non-Invasive Ear Canal Audiometry as a Predictive Factor for Speech Perception after Cochlear Implantation.

Sinkkonen ST, Kronlund L, Hautamäki J, Jero J, Aarnisalo AA, Kentala E - Audiol Res (2014)

Effect of patient age on speech perception after cochlear implant. Linear regression fit (solid line; 95% confidence bands, dashed lines) shows no correlation between age and speech perception (P=0.42).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4627137&req=5

fig003: Effect of patient age on speech perception after cochlear implant. Linear regression fit (solid line; 95% confidence bands, dashed lines) shows no correlation between age and speech perception (P=0.42).
Mentions: Individual patients’ preoperative TDLs and SPs after CI are shown in Figure 1. Linear regression fit of speech perception scores after CI and preoperative TDL of the implanted ear gave a trend of shorter TDL corresponding to better SP (Figure 1), but the trend was not statistically significant. This led us to look at the correlation between TDL and age, which is shown in Figure 2. This linear regression fit reveals that there is a statistically significant correlation between age and TDL. When looking at patient age and SP, there is a trend of worse SP with advancing age, but the correlation is not statistically significant (Figure 3).

Bottom Line: Our results show that there is no correlation between TDL and postoperative speech perception.However, patient's advancing age correlates with longer TDL but not-directly with poorer speech perception.The results are in line with previous results concerning the lack of predictive value of preoperativ TDL measurements in CI patients.

View Article: PubMed Central - PubMed

Affiliation: Department of Otorhinolaryngology, Head & Neck Surgery, Helsinki University Central Hospital , Finland.

ABSTRACT
The temporal difference limen (TDL) can be measured with noninvasive electrical ear canal stimulation. The objective of the study wa to determine the role of preoperative TDL measurements in predicting patients' speech perception after cochlear implantation. We carried out a retrospective chart analysis of fifty-four cochlear implant (CI) patients with preoperative TDL and postoperative bisyllabic word recognition measurements in Helsinki University Central Hospital between March 1994 and March 2011. Our results show that there is no correlation between TDL and postoperative speech perception. However, patient's advancing age correlates with longer TDL but not-directly with poorer speech perception. The results are in line with previous results concerning the lack of predictive value of preoperativ TDL measurements in CI patients.

No MeSH data available.


Related in: MedlinePlus