Okay, here's another update. . . this almost merits a different forum topic.
We are waiting and may do another block this Friday, per schedule, but I'm thinking it might be delayed, because we may have a different option almost as good in some ways, and maybe better in some ways.
My mom has been resistant to wanting to try any other last minute medical approaches to the block because, "it's working" so she seems to seek more blocks. Now of course this is a course of treatment which is going for a radical "no pain" by numbing approach. In effect trading burning foot for a kind of diabetic neuropathy symptom of numb feet, but perhaps as it's artificially produced, it won't affect motion or movement of the legs or feet, just feedback and feeling. Hopefully not enough to hurt walking. At least that is the goal.
One of the other possibly promising routes however is to try something less conventionally for "normal pain conditions". And by that I mean Ketamine and Amitriptyline cream. This has had some effectiveness for some EM patients but no effect for others.
Our plan for the cream approach, was to test this cream and we are talking about the weakest variation of this cream to start with; to see if it might help mom. The idea may be somewhat related to some treatment processes for other neurological diseases like CRPS. The cream we are talking about is 1 percent Amitriptyline and 0.5% Ketamine. Some doctors may be worried about the side effects and if it gets in your blood stream it may cause bad side effects. In theory the Amitriptyline might lessen the risks a bit and that is why it's in the mix. But we are not talking about intervenious infusions or some massive dose to treat RSD, we are just talking about cream for a burning foot problem. Some have even suggested this kind of cream may help some who have fibermeliagia. Some who have tried the low dosage of this cream described will perhaps experience no relief at all. Some may require a stronger dose and compounding pharmacies can create stronger doses with up to 10% Ketamine in the cream or topical jell. But it's probably a good idea to start low.
We have a prescription written by a doctor to try this cream and filled the prescription about a week ago. Mom finally decided it would be worth the risk to try it, and we decided to try with one foot at first and see if the side effects would be bad or if the cream would help.
11:50am applied cream to her right foot. She was experiencing a worse flare on her left foot but both flares were not with a really high temperature in her feet. We tried the non-flaring side first because some report a warm feeling when the cream is first applied and I didn't want to push a hot flare to a hotter place and create more pain.
12:20PM - 30 minutes later, no side effects and no heat from right foot, so she asked that I apply it to the left foot as well. I applied cream to the left foot as well, a thin layer as was listed. She started to feel her feet both warm up, but it was not uncomfortable. By 2PM she was stating something was going on with her feet, as if she was having less pain but she didn't want to talk about it much for fear she might focus on the pain and jinx the treatment in some way. She actually missed her pain medication schedule and took her regular 1/2 dose 2 hours late at 2pm instead of 12pm. We also delayed the pain patch as this was her pain patch day. I was going to delay it for a couple of hours, but her relief from pain was so good, that we didn't decide to put on the pain patch until much later in the evening.
She was feeling less pain, but didn't want to specify a number for the amount of relief. She wanted to go outside and go somewhere, either on the porch or in the car. We'd use a wheelchair. We went out into the cold clear air of the cold spring day. Mom wanted to go somewhere in the car, maybe the dollar store, so we drove there. Her feet were down in the car instead of up on the dash and I had the AC blowing on the floor of the car. When we stopped at the dollar store I left the car running and went inside while she stayed in the car. She said I turned up the thermostat a little to high when I left, to avoid possible pre-frostbite, so her feet were a little bit to warm. But she was able to keep her feet on the floor without much discomfort.
Before we went out she had some movement in her feet, perhaps from the late Ativan dose. And she had some movement in her mouth, which I watched and wondered if it was some kind of RLS like involuntary movement, but when I asked her she was just checking out a sore spot in her mouth, as she is expecting some new dentures this week. So it didn't seem like she had any involuntary twitching of her feet or mouth, maybe some movement in her feet. She was thinking much more positively and wanted to start thinking about doing things around the house as she was feeling like she would be recovering from the pain. This seemed to be hopeful and positive. She also had great movement of her toes and feet and could wiggle them freely and move them around. This is normal for her, so the ketamine didn't affect her ability to move her feet at all.
I made perhaps 6 report updates to the doctors via email during the day and evening. She also washed her own feet with a washcloth in her foot water and scrubbed her toenails with a soft toothbrush. She also later summarized her day by saying the pain was for all practical purposes low enough to not be a factor to stop her from activity. She said, her pain was virtually gone, at such a low degree on the scale, it was basically equivalent in her mind as a tibial nerve block. I thought she might have had a little bit more discomfort than if the block was fully numbing her feet. For all practical purposes the nerve blocks we have tried were probably no better than the results of the Ketamine cream which I found to be a bit shocking.
I was half expecting the cream would have no effect at all. I thought it might just be a rabbit trail that led to nowhere and was plesantly surprised by what I saw.
Later she said her feet were in their own state of euphoria, but her mind seemed to be fine and clear, with no side effects. Later in the evening she got into a bit of a depressed mood about a depressing movie that reminded her of a family drama issue with some relatives. She didn't stay in that state for long however and we simply turned off the movie. She had a point at about 10:15 pm where a flare started to come back and she put her feet in the cold water bath. She had no real need to chill her feet during much of the day, but was fatigued a bit and complained a bit of feeling dizzy at one point of time and also said her vision seemed to be a bit blurry and complained about her glasses slipping off her face while I was in the dollar store. A couple of weeks ago a blood vessle broke in her right eye, and that might be contributing to her blurry vision. She suffers a bit from dried out eyes as well from all the cool AC chilling that happens. At least she wasn't saying she was "seeing things", so this seemed to be no horrible sign of a side effect as far as I could tell.
Around 5:30PM we visited one of her friends and she put her feet on the dash to show them her feet. She felt her feet were not as swollen and red as a result of the cream.
She had a small cut like bleeding patch on one of her middle toes which was a small bleeding thing from pressure of blood in her foot or perhaps a small abrasion that happened. It was healed up by the evening.
Mom said later when I asked her if all these other pills were working much on her pain and how it compared to the Ketamine cream. She said that the difference in pain relief was really no contest. That the Ketamine cream relieved her of so much pain her feet were not screaming for attention and she didn't have to think about them and could just go and do something. She said that the Ketamine cream was in a completely different class of stopping pain than all the other pills, this include Norco, Cymbalta, and a 50mg Fentynl pain patch. Plus other pills. I had the impression that perhaps but this is just my early impression from a good day, the cream might work well enough that we might eventually be able to cease using all the other pills and only have the cream for her pain. This is a low dose of cream topically applied so in theory almost none of it will even get into the blood stream.
I've never heard of a person who had a lot of pain in their feet describe their feet as in a state of Euphoria before. Sounds like the NMDA blocking action took her feet out of hell and put it into some kind of state of heavenly euphoria.
So this seemed to be a good test and we will likely continue testing the cream to determine if there are any bad side effects and if it will continue to offer relief or improve her condition over time. Some have reported the cream working better or causing a change after 3 to 5 days. But this may only be incidental cases and there is no guarantees of course. It will be interesting to see what happens and we will have to determine the risks and rewards against pain with this approach compared to the tibial nerve block. I have a feeling if the next two days are as good as the first, we may delay the 4th tibial nerve block test and keep going the Ketamine route unless there is some compelling reason to continue to go with the nerve block route. I never would have thought 4 months ago that we might be facing two different opportunities to possibly completely change the way we deal with the chronic pain, basically finding a much better way to cope with it and drastically improve her lifestyle.
Also her blood pressure was normal, although we had one false reading that was kind of scary until I realized it was a false reading with three other readings. Overall it seemed she had 10 to 12 hours of relief and even after she had to chill the feet late at night around 10:30pm she said the chilling was much quicker and her feet felt better after a shorter time chilling them down. She felt there was some residual good happening to her feet even after she had a bit of a flare, and that flare occurred when she ate a spicey Arby Roast Beef Jr sandwich. She normally avoids beef because it may cause a flare. So that was a trigger than helped end her run of no pain for the day, but she seemed to recover from that faster, and took an 11PM dose of regular pills which may have helped a bit as well. She took her "pain patch" at 8pm which is 8 hours late. To take a pain patch that late and have no pain during a day when the pain patch is due to be changed is new and a good thing for her. Only the Tibial Nerve block has been anywhere as close to helping her with pain in the last 14 years. . . except for one other "fluke we had one afternoon" but that was isolated as well and didn't continue. . . or show us a means to keep getting relief.