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Alternative Therapies

I am happy to announce that you can attend the Migraine World Summit free of charge. It is back on March 16-24, 2022 for its 7th annual virtual event. As one of the former presenters, I can tell you that you may greatly benefit from learning about the latest research on how to best manage migraine.

Migraine World Summit is a 9-day event where 32 of the world’s leading experts on migraine and headache research are interviewed on topics voted on by real patients. These interviews are online and can be accessed from anywhere in the world, but are only available free during the 9-day event.

Get your ticket today at MigraineWorldSummit.com

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Nerivio, an electrical stimulation device was cleared by the FDA to treat acute migraine attacks in adults almost three years ago. It was recently also cleared to treat migraines in adolescents. A new study sponsored by Theranica, the manufacturer of Nerivio shows that combining this device with relaxation and education improves its efficacy.

Remote electrical neuromodulation (REN) is the official term for passing an electrical current through the arm in order to treat migraine headaches. Theoretically, other painful conditions can be also treated by electrical stimulation applied outside of the area of pain. Currently, however, there is only only one such device, Nerivio, and it is used to treat migraine headaches.

I’ve prescribed this device (and it still needs a prescription) to hundreds of patients. About half of them find it effective and continue using it. Some of my patients have remarked that not only their migraine improves, but they also feel more relaxed. I was a bit surprised because they are supposed to crank up the current to the point just below where it becomes painful. But even if you don’t feel relaxed, it makes sense for all patients to try to relax during this treatment which typically takes 45 minutes.

Theranica sponsored a trial that combined electrical stimulation with what they call Guided Intervention of Education and Relaxation (GIER). This consisted of a 25-minute video played on the user’s smartphone during the treatment. It trains patients in three relaxation techniques: diaphragmatic breathing, progressive muscle relaxation, and guided imagery. It also provides pain education about migraine biology and electrical stimulation.

The results of this trial were just published in the journal Pain Medicine. The lead author, Dr. Dawn Buse is a psychologist and one of the leading headache researchers.

The results in the group that used only Nerivio were consistent with those found in previous controlled trials – 57% of patients had consistent pain relief in more than 50% of their attacks, 20% had complete elimination of pain, 53% had improvement in function, and 18% were able to return to normal functioning within 2 hours after treatment.

Patients who combined Nerivio with GIER did better. 79% had pain relief, 71% had improved functioning, and 38% returned to normal functioning.

Nerivio is used through an app that is downloaded into a smartphone. This gives the company a perfect opportunity to easily enhance the efficacy of its product.

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My previous post described a study that found no difference in efficacy among different types of psychosocial interventions for the treatment of chronic back pain. A recent 2020 Cochrane review concluded that there is strong evidence that face-to-face treatments based on cognitive behavioral therapy (CBT) have a small beneficial effect on reducing pain, disability, and distress in people with chronic pain.

A meta-analysis just published in the journal Pain examined the efficacy of CBT delivered via the internet. Australian researchers examined 36 studies with 5778 participants. Most participants were female, and most studies recruited participants from community settings through online advertisements in Western countries.

They concluded that “internet-delivered cognitive and behavioural interventions can result in small significant improvements in interference/disability, depression, anxiety, pain intensity, self-efficacy and pain catastrophizing. Guided interventions may result in greater treatment effects for key outcomes in pain management, including interference/disability, anxiety and pain intensity.”

The meta-analysis showed that guidance by a clinician improves the results. However, this guidance varied across the studies in terms of
how it was provided (e.g., via secure email, SMS messages, telephone calls), the timing and frequency with which it is provided (e.g., weekly, on demand, or at set time points), the amount provided (e.g., brief versus extended), and the professional qualifications and experience of those providing it (e.g., students-in-training, registered psychologists, non-health professionals). There was no difference between the traditional CBT and ACT (acceptance-commitment therapy), confirming the results described in my previous post.

There are several sites that offer CBT courses over the internet. ThisWayUp.org.au and moodGYM.anu.edu.au, online-therapy.com, and others. During the pandemic almost all social workers and psychologists switched to virtual appointments. Lower cost is the advantage of self-directed online CBT courses.

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Cluster headaches are considered to cause the worst pain imaginable. We have a variety of medications – both acute and preventive – that help relieve the pain of cluster headaches. For some, none of these treatments work and we do need additional medications. Ketamine could be one such drug.

Ketamine has been in use for over 50 years. Its main indication is intravenous anesthesia. Recently, the FDA approved ketamine nasal spray for depression. It is also being widely used intravenously and by mouth for depression, chronic pain, and migraine headaches. A group of researchers at the Danish Headache Center in Glostrup, Denmark tested the efficacy of ketamine nasal spray for the acute treatment of cluster headaches.

Anja Petersen and her colleagues selected 20 cluster patients whose attacks did not respond sufficiently well to sumatriptan or oxygen – the two most effective acute therapies for cluster headaches. Patients treated a single cluster attack with 15 mg of intranasal ketamine. They could repeat this dose every 6 minutes, for up to 5 times. Four patients took another medication after 15 minutes. Of the 16 remaining ones, 11 had a drop in pain severity by an average of four points, to four or lower on a one to 10 scale. Half of the patients preferred ketamine to oxygen and/or sumatriptan injection. No patient had any serious side effects from ketamine during the trial.

Ketamine nasal spray that is approved for depression is a more potent version of ketamine called esketamine (Spravato). It is a patented and branded product and it is very expensive. Ketamine itself, however, is a cheap drug. A compounding pharmacy can prepare a nasal spray for as little as $60 for a month supply. Most insurers do not cover compounded drugs, so you’d have to pay for it.

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I’ve been prescribing medical marijuana (MM) since 2016 when it became legal in New York. We still lack controlled clinical trials of MM for the treatment of migraines. Most of my patients who find MM useful report that it relieves nausea or anxiety, helps them go to sleep and sometimes relieves pain. Others find that taking it daily prevents migraines. CBD alone can be also helpful, but most patients need a combination of CBD and THC as well in order to obtain a therapeutic effect.

Like any other drug, MM can have side effects. One of them is cognitive impairment. A study just published in the New England Journal of Medicine describes the effect of recreational marijuana legalization in Canada on injuries to car drivers. The researchers studied drivers treated after a motor vehicle collision in four British Columbia trauma centers from 2013 through 2022. They discovered that after legalization, the number of moderately injured drivers with a THC level above the legal limit doubled. The largest increase was seen in older and male drivers.

This is relevant to the users of MM as well. From now on, I will caution my patients not to drive after taking any THC-containing products. Just like with alcohol, you don’t need to have a blood level above the legal limit to slow your reflexes.

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Worsening of headaches in children is one of many deleterious effects of the pandemic and measures to control it. A survey of children in a headache clinic at the Children’s National Hospital in Washington DC by Dr. DiSabella and his colleagues showed that 46% of children had worsening of their migraine headaches during the pandemic.

They also reported much higher rates of anxiety, depression, and stress. Two-thirds of children reported that they exercised less. This could be one of the contributing factors since exercise has been shown to reduce the frequency and the severity of headaches.

What this survey did not explore is the effect of family stress and the presence of child abuse. Reports of child abuse have actually declined during the pandemic because most of these reports come from teachers. Chronic migraines and chronic pain are much more common in patients with a history of being physically, emotionally, or physically abused. PTSD from other causes has a similar predisposing effect and many children and adults have been traumatized by the pandemic.

Some children (as well as adults) report improvement of their headaches during the pandemic. My patients tell me that because they do not have to commute, they have more time to exercise, meditate, cook healthy meals, and get more sleep. I see this in a small proportion of patients. A larger group did worse with additional factors being worsening of headaches due to COVID and in a very small number, COVID vaccines.

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Magnetic stimulation with a single pulse has been shown to be effective in aborting a migraine attack with the eNeura Spring TMS device.
Repetitive magnetic stimulation (rTMS) of the brain has been shown to relieve depression. A pilot study just published in the journal Brain Stimulation examined the effectiveness of repetitive magnetic brain stimulation for the prevention of migraine attacks.

German and Moldovan researchers conducted a double-blind, randomized controlled study in patients with episodic migraine. They compared real and sham stimulation in 60 patients. Participants received six treatment sessions over two weeks. The primary outcome measure was the number of patients whose migraine days dropped by 50% or more. The frequency and intensity of migraine attacks over a 12-week period were also assessed.

Real rTMS produced at least a 50% reduction in migraine days in 42%. This number was 26% in the sham group. The mean migraine days per month decreased from 7.6 to 4.3 days in the real rTMS group and from 6.2 to 4.3 days in the sham rTMS group. The reduction in migraine attack frequency was also higher in the real rTMS compared to the sham group. No serious adverse events were observed.

There are a couple of practical issues with this treatment approach. The rTMS equipment is already being used for depression, which in theory should make it easy to adapt for migraines. However, this treatment is time-consuming and expensive and is not likely to be covered by insurance. Another problem, which we also encountered in our study of transcranial direct current stimulation, is that there are many variables to consider. Placement of electrodes, the strength of stimulation, frequency, and duration of treatments are some of these variables.

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The influence of estrogen on migraines in women is well established – women often experience migraines before or during menstruation and ovulation and their migraines usually subside during pregnancy and menopause.

According to a new study published this month by Dutch researchers, men who suffer from migraines often have a deficiency of male hormones.

Gisela Terwindt and her collaborators evaluated a possible deficiency of androgens or male hormones in 534 men with migraine and 437 men with cluster headaches. These men were compared to 152 healthy controls. Two validated questionnaires were used to measure androgen deficiency scores. The researchers controlled for age, weight (BMI), smoking, and lifetime depression. They also measured four sexual symptoms (beard growth, morning erections, libido, and sexual potency). These four symptoms have been shown to differentiate between hormonal deficiency from anxiety and depression. They did not perform blood tests to measure hormone levels.

Patients reported more severe symptoms of clinical androgen deficiency compared with controls. Both patient groups were more likely to suffer from any of the specific sexual symptoms compared to controls (18% migraine, 21% cluster headache, 7% controls).

The findings in men with cluster headaches are not surprising. Prior reports have documented low testosterone levels in this population. A small study by Dr. Mark Stillman suggested that those cluster patients who have low testosterone levels could benefit from hormone replacement therapy.

There are also reports of low testosterone levels in men with chronic migraines but the connection is less established.

This study may prompt me to pay more attention to sexual dysfunction in men with chronic migraines. I may also start checking testosterone levels in such patients.

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The placebo effect is a bane of clinical trials. It is, however, a great tool in clinical practice. It is unethical to prescribe an actual placebo but there is no reason not to try to enhance the placebo effect when prescribing any treatment, pharmacological or non-drug.

A new and unique study that was just published in Pain, a journal of the International Association for the Study of Pain, suggests that looking at others who respond to treatment makes people more likely to respond to that treatment as well.

German researchers decided to study what is called social observational learning (SoL). This was a double-blinded randomized controlled clinical trial in 44 patients with chronic low-back pain (CLBP). They compared the effects of observing positive treatment outcomes in a sham or pretend patient versus hearing the same sham patient report neutral effects. In the SoL group, the sham patient told study patients about his improved pain due to amitriptyline and he also demonstrated his improved mobility by bending forwards and sideways. The same sham patient told the control group only that he was taking amitriptyline. The researchers collected data before and after the intervention and two weeks later. After the intervention, pain decreased in both groups with no difference between groups. The SoL group, however, showed a significantly larger decrease in perceived disability.

The authors concluded that “The CLBP patients’ direct observation of positive treatment outcomes in the sham patient appears to have enhanced the treatment effects, while indirect verbal reports of reduced pain did not.”

These findings are not surprising. I often have patients ask for a particular treatment because their friend or relative had a very good response to it. If it is a reasonable treatment for a particular patient, I usually oblige, hoping for an enhanced placebo effect.

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To gain FDA approval a drug has to be shown to be better than a placebo. The placebo effect is a well-established psychological contributor to the efficacy of most treatments.

A group of Italian researchers just published an interesting study looking at other psychological factors that might influence the response to treatment.

They evaluated chronic migraine patients who were treated with erenumab (Aimovig). Erenumab is a monoclonal antibody that targets CGRP, a neurotransmitter involved in the development of migraine attacks.

Monthly erenumab injections were given for one year to 75 patients with chronic migraine who had already failed at least three other oral preventive drugs. A full psychological evaluation assessed personality disturbances, mood and anxiety disorders, as well as childhood traumas, and ongoing stressors.

After 12 months of treatment, 53 patients had at least a 50% drop in the number of headache days per month. The other 22 did not. When compared to responders, non-responders were more likely to have personality disorders with anxious-fearful, avoidant, dependent, and obsessive-compulsive features. Non-responders were also more likely to suffer anxiety disorders and had a higher number of current major stressors.

A very practical application of these findings is that doctors need to address anxiety when treating migraine and chronic pain patients. I’ve seen a number of patients whose migraines improved with an SSRI antidepressant such as fluoxetine (Prozac) or escitalopram (Lexapro). SSRIs do not possess pain-reliving properties. However, they are good at relieving anxiety and so can indirectly improve migraines. Most of the time, I prescribe SNRIs such as duloxetine (Cymbalta) or a tricyclic antidepressant such as nortriptyline (Pamelor) because they relieve anxiety and can have a direct pain-relieving effect.

The old dogma in psychology was that you cannot change your personality. We now know that such change is possible. Different types of cognitive-behavioral therapy (CBT) can be very helpful. Swedish researchers showed that even a brief internet-based CBT can produce long-term changes in personality traits.

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Many migraine sufferers report that their migraines are brought on by the weather. High humidity, high temperatures, and changes in barometric pressure are the most commonly reported triggers. I’ve seen some patients for whom changes in the weather is the only trigger. Research studies looking at this connection, however, have been contradictory.

A very large study just published in Pain, the journal of the International Association for the Study of Pain examined a possible connection between the weather and pain tolerance.

The data from 18,000 Norwegians aged 40 years or older from the general population were examined. All of them underwent pressure pain tolerance (PPT) test using a blood pressure cuff and cold pain tolerance (CPT), tested by immersing the dominant hand in cold water.

The results showed a clear seasonal variation in CPT. Cold pain tolerance was worse during the warmer times of the year compared with January. There was no seasonal variation in PPT.

The authors also found that temperature and barometric pressure have “a causal and dynamic effect on pain tolerance, which supports the common belief that weather affects pain.”

There is not much you can do about the weather except for moving to a place with an unchanging and mild climate. Some of my patients with barometric pressure-induced headaches do respond to acetazolamide (Diamox). This is a diuretic that prevents mountain sickness in climbers. Patients do not need to constantly check the weather forecast. For more information on acetazolamide, see my previous blog post.

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Patients coming to the New York Headache Center have enjoyed seeing my daughter Julie’s artwork since she was 11. This was not just a childhood interest – Julie graduated from the Rhode Island School of Design with a degree in painting. She has continued to work hard as a painter and her perseverance and talent have led to wider recognition.

Julie is represented by a New York City gallery, SHRINE. A few days ago, her work was selected for Platform, a new online initiative by David Zwirner.

You can see more of Julie’s work on her Instagram page.

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