Dyno,
One of the benefits of an open forum like CH.com is the exposure to diverging opinions. We welcome them as essential elements of an informed decision making process many visitors and members here must make in their journey to find an effective method or methods of controlling their cluster headaches.
First hand comments like yours on the ONSI carry great value if they're objective covering the good, bad, and other aspects of this surgical procedure including the risk – reward ratio. You may have been fortunate, but greater than 50% of the CH'ers who have had the ONSI surgical procedure have encountered adverse events requiring additional surgery to re-attach electrode leads that migrated away from the occipital nerve or to replace depleted batteries.
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I've followed three intractable cluster headache sufferers through this procedure maintaining frequent contact with them. One is a close friend and I've visited with him frequently since his ONSI surgery. All too often we would meet in the middle of the night at the oxygen cylinder to abort our cluster headaches... The ONSI did little for him at night. All have undergone one or more additional surgical procedures on their ONSI following the complete implant procedure; One contracted an infection during the initial electrode implant surgery that required the electrodes to be removed until he recovered from the infection. They all still have cluster headaches...
When it comes to discussing diverse positions or opinions on a given method of treatment, it's often best to define a common set of terms that can be used to frame the discussions. I agree with your comment that ONSI is not for everyone. Providing the metrics like overall and long term efficacy discussed in the link above would be helpful in explaining why it's not for everyone and that it is very invasive.
While I agree ONSI has promise as a surgical procedure of last resort for some intractable cluster headache sufferers, it still lacks the technology needed to make it a more effective method of intervention.
For example, ONSI presently lacks the capability to process nerve signals like an Implantable Cardioverter Defibrillator (ICD) (similar to a pacemaker) that is capable of detecting and processing signals in the heart's electrical system indicating a cardiac arrhythmia then generate the appropriate level of defibrillating electrical shock until the arrhythmia subsides.
Until the ONSI has a similar capability to automatically detect the onset of a cluster headache and deliver the appropriate nerve stimulation without any user intervention, it's use will continue to be a manual only process that requires the user to take the small TV-like remote control unit in hand, point it at the ONSI control unit surgically implanted in the belly fat, and select the desired signaling pattern…
Obviously this would not be possible while sleeping so it really doesn’t work 7/24. Moreover, to call this surgical procedure "non-invasive" is clearly misleading… The Occipital Nerve Stimulator Implant surgical procedure by its very nature is invasive.
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All the wires shown in the photo at the right were later implanted under the skin from the neck diagonally down across the back, around the ribs to the control unit surgically implanted in the belly fat.
An invasive procedure is one which penetrates or breaks the skin or enters a body cavity. Examples of invasive procedures include those that involve perforation, an incision, a catheterization, or other entry into the body.
Surgery is a typical medical invasive procedure. An open surgery means cutting skin and tissues so the surgeon has a direct access to the structures or organs involved. The structures and tissues involved can be seen and touched, and they are directly exposed to the air of the operating room.
Accordingly, Jay needs all the information he can get on this surgical procedure… both good, bad and other. He also needs information on the non-invasive alternatives and their efficacy in order to make an informed decision.
If Jay hasn't tried oxygen therapy at flow rates that support hyperventilation/the demand valve method of oxygen therapy, the anti-inflammatory regimen with vitamin D3, or cluster busting… he has not exhausted all the non-invasive methods of controlling his cluster headaches.
You might want to ask Mike Pollock at OUCH-UK about the demand valve method of oxygen therapy. He's had the ONSI procedure and still uses oxygen therapy. Mike tried the demand valve method of oxygen therapy during his travel here to the US while staying in Florida in 2008 and found it effective.
Take care,
V/R, Batch