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This is not entirely correct. Sensorineural hearing losses are an ensemble of mulfunctions, involving the sensory structure (hairy cells for the most part, all the structure of the cochlea more generally) and/or the neural transmission of the signal to the brain. Actually the acoustic nerve...

Sure, signal processing is also seeing improvements, but these are relatively small steps forward. For sure the technology has evolved readically in the last 10 years! A change in the technology of the inner implant would allow an impressive change, order of magnitude!!! The perspective is...

Beike is trying to export to medical business a model which is typical of all the other productive industries: keeping the industrial secret, rather than publishing results and/or patents, and relying on heavy marketing campaign. This is because they cannot attract patients with the fame of...

:bowdown: yeah, Deafdude is the stem cells guy!! :D

The improvements on pitch discrimination will probably occur in a couple of implant generations. 3-6 years at least. They are working on that. It is possible to get some technical details in the choclear academy website. Pretty interesting. The bad thing here is that it is all on the inner part...

This is a study for the function of middle ear after implantation. There is some work to do in this respect, too. This is also somethingwe can expect will be improved in the future. The Journal of laryngology and otology (2009) Volume 123 Issue 7 Pages 723-9 Effect of cochlear implant...

Here it is. This is a clinical study of residual hearing preservation for hybrid CI. In this case from Med-El. As you can read the preservation is for 100% of patients, 45% complete preservation and measurable improved results for electric acoustic stimulation. Does not seem to me as a total...

I add a small thing. The real problem is that it is not possible to know from the beginning what will be the final result. And the process for coming to the end is long and there is no way-back. This is why it is always so difficult.

Well actually the study points out that for people with remarkable residual hearing before implantation and good performance with HAs, there is an adaptation time during which they show worse performance than when they were amplified. After this decrease of performance, all of them show better...

Well, he was examined by ABR and the diagnosis is 95db or worse. He gave no wave V response. Basically he is profoundly deaf in the frequency range covered by ABR (500-2500, more or less). Do not ask me how much gained was programmed in the HAs initially. Their idea is a number of programming...

Oh, I see... Thanks for your reply. The point is that it is pretty common to get opposite answers to the samequestion. This is upsetting and make vary difficult to go for a rational choice...

Creating an electrode array with more discrete electrodes does not make any sense at the moment, because of the current spreading effect that happens inside the cochlea. The cochlear fluid is conductive and its presence causesthe current to spread to the spiral ganglion in an area sorrounding...

I try to reply to some of the expressed concepts. First, the intra-cochlear fluid is NOT drained out. Actually the presence of the fluid in the cochlea (which is necessary to the tissues) is one of the limiting factor of pitch discrimination for CI users. Since the fluid is not pure water, but...

Pretty old (2004), but still interesting paper pasted below. It seems that with the newest processors things are a bit different, anyway, I think it is an intereting reading. AMA, the Journal of the American Medical Association Volume 291 Issue 19 Pages 2378-2380 Speech, language, and reading...

Having a look to the studies, it appears evident that CI gives a substantial benefit also to people with usable residual hearing. The final results are not dependent on the quantity and quality of the pre-implant hearing, but apparently all the CIers perform better than with HAs after a certain...

It has become common to consider residual hearing completely lost after implantation. Anyway, you can find this statement in almost all the threads dealing with CI, but I have been not able to get any real data about that from the posts. First, some practical considerations: - if CI is working...

Usually the nerve response is tested before implant surgery, as a preliminary test. If I am not wrong it is called the measure of the promontory potential. The pitch discrimination that possibly can have a relevant effect on the success of a CI is more due to the state of the nerve ganglions at...

Well, my son actually has no audiogram unaided, since he does not react to any sound level. We could say he is 100db or more across the board. Now he is aided and he is giving some responses. The last audiogram showed he is aided at 50db at 250Hz going down to 70db at 3000. He seems to hear...

Works published in the last two years are recent. Of course in some fields things are running fast, but we should try not to exaggerate... As I always say to you, you are free to make your choices and I wish you all the best. What I want to do here is doing my best to give a rational...

Thanks, for a while I was thinking not to be able to communicate clearly anymore... :hmm: