Dr. Aradillas - Pain due to autoimmune disease
Posted: Sun Jun 14, 2015 6:40 pm
I wanted to share with this group a doctor I saw last week, Dr. Aradillas in the Neurology Department at Drexel University in Philadelphia, PA. Excuse the length of this post but I wanted to share with you a portion of a handout they gave me.
Dr. Aradillas is a neurologist specializing in pain with an emphasis on patients with Complex Regional Pain Syndrome (CRPS). I know this group isn't focused on CRPS but I thought I would share some of what I've learned because I believe it could potentially help someone who continues to be refractory to treatment. That this refractory to treatment might be due to an autoimmune disorder that is attacking the sensory nerve fibers.
No one understands why an individual develops CRPS. What they do know is that CRPS is a disease of the central nervous system and there is a loss of the pathway that inhibits the pain signal in the central nervous system, therefore, the patient always feels pain. Because of this baseline level of pain it is important to treat any other pain generators because these other sources are like adding gasoline to a fire.
Below I have copied a section from a handout Dr. Aradillos office gave me.
“In many of these patients we have found multiple conditions that can case chronic pain, and when we do find something we try to treat it separately from their CRPS because there is evidence that shows:
1. Any pain from any condition or cause will activate the “normal” processes that lead to the experience of pain. In the majority of patients who suffer an injury these processes eventually “calm down” and the pain resolves. In patients with CRPS these processes do not stop and eventually become chronic and the pain continues. One of these processes is the activation of the immune system.
2. If a patient with CRPS develops a chronic pain condition on top of this CRPS this condition will trigger (for a CRPS and a non-CRPS patients) these immune processes.”
In patients who suffer from CRPS this extra chronic pain condition will:
1. Contribute to maintain their CRPS by triggering the “normal” processes of pain in the spinal cord and brain.
2. Can potentially be more painful than for a patient without CRPS
3. By triggering these “normal” processes in the spinal cord and brain can make the infusion less efficacious because the on-going input of pain into the spinal cord will block the receptors in which ketamine work and will leave virtually none left for ketamine to go through.
These extra pain generators cause a wide variety of symptoms. … Some of these patients can also demonstrate a pattern consisting of pain on all 4 extremities, worse at the hands and the feet with a distinctive burning quality. This could mean that they have developed a neuropathy, specifically a small fiber neuropathy (SFN).
1. If we take every person in the world with burning in the hands and feet (neuropathy) the most common cause would be diabetes mellitus (even in these patients the cause seems to be activation of the immune system). The second most common cause is liver disease… The third most common cause is an autoimmune disease, any autoimmune disease can cause a painful neuropathy.
2. It has been shown that patients with CRPS have an elevated level of “inflammatory proteins” circulating in their blood stream, the reason for this is still unclear.
3. Patients with painful neuropathy (from an autoimmune, diabetes, liver, etc.) also have shown to have elevated inflammatory protein profile in their blood.” End of the portion of the handout I’m copying.
Dr. Aradillas found that I have developed this small fiber neuropathy (SFN). It is easily tested for on physical exam and by skin biopsy. Dr. Aradillas has found for patients with CRPS plus SFN that treatment with platelet plasmapheresis reduces pain in about 87% of the patients. During platelet plasmapheresis the plasma is removed and plasma contains protein. Antibodies are proteins and the antibodies that are attacking the sensory fibers are removed during this process. Albumin is given back to the patient to replace the protein that has been removed. Dr. Aradillas has also found that ketamine infusions effectiveness is greater if patients have undergone platelet plasmapheresis.
I will return to Drexel the end of August for medical clearance for inpatient ketamine. Once I receive medical approval I will undergo platelet plasmapheresis prior to my 5-day inpatient ketamine infusion.
Dr. Aradillas is a neurologist specializing in pain with an emphasis on patients with Complex Regional Pain Syndrome (CRPS). I know this group isn't focused on CRPS but I thought I would share some of what I've learned because I believe it could potentially help someone who continues to be refractory to treatment. That this refractory to treatment might be due to an autoimmune disorder that is attacking the sensory nerve fibers.
No one understands why an individual develops CRPS. What they do know is that CRPS is a disease of the central nervous system and there is a loss of the pathway that inhibits the pain signal in the central nervous system, therefore, the patient always feels pain. Because of this baseline level of pain it is important to treat any other pain generators because these other sources are like adding gasoline to a fire.
Below I have copied a section from a handout Dr. Aradillos office gave me.
“In many of these patients we have found multiple conditions that can case chronic pain, and when we do find something we try to treat it separately from their CRPS because there is evidence that shows:
1. Any pain from any condition or cause will activate the “normal” processes that lead to the experience of pain. In the majority of patients who suffer an injury these processes eventually “calm down” and the pain resolves. In patients with CRPS these processes do not stop and eventually become chronic and the pain continues. One of these processes is the activation of the immune system.
2. If a patient with CRPS develops a chronic pain condition on top of this CRPS this condition will trigger (for a CRPS and a non-CRPS patients) these immune processes.”
In patients who suffer from CRPS this extra chronic pain condition will:
1. Contribute to maintain their CRPS by triggering the “normal” processes of pain in the spinal cord and brain.
2. Can potentially be more painful than for a patient without CRPS
3. By triggering these “normal” processes in the spinal cord and brain can make the infusion less efficacious because the on-going input of pain into the spinal cord will block the receptors in which ketamine work and will leave virtually none left for ketamine to go through.
These extra pain generators cause a wide variety of symptoms. … Some of these patients can also demonstrate a pattern consisting of pain on all 4 extremities, worse at the hands and the feet with a distinctive burning quality. This could mean that they have developed a neuropathy, specifically a small fiber neuropathy (SFN).
1. If we take every person in the world with burning in the hands and feet (neuropathy) the most common cause would be diabetes mellitus (even in these patients the cause seems to be activation of the immune system). The second most common cause is liver disease… The third most common cause is an autoimmune disease, any autoimmune disease can cause a painful neuropathy.
2. It has been shown that patients with CRPS have an elevated level of “inflammatory proteins” circulating in their blood stream, the reason for this is still unclear.
3. Patients with painful neuropathy (from an autoimmune, diabetes, liver, etc.) also have shown to have elevated inflammatory protein profile in their blood.” End of the portion of the handout I’m copying.
Dr. Aradillas found that I have developed this small fiber neuropathy (SFN). It is easily tested for on physical exam and by skin biopsy. Dr. Aradillas has found for patients with CRPS plus SFN that treatment with platelet plasmapheresis reduces pain in about 87% of the patients. During platelet plasmapheresis the plasma is removed and plasma contains protein. Antibodies are proteins and the antibodies that are attacking the sensory fibers are removed during this process. Albumin is given back to the patient to replace the protein that has been removed. Dr. Aradillas has also found that ketamine infusions effectiveness is greater if patients have undergone platelet plasmapheresis.
I will return to Drexel the end of August for medical clearance for inpatient ketamine. Once I receive medical approval I will undergo platelet plasmapheresis prior to my 5-day inpatient ketamine infusion.