Tolosa-Hunt Syndrome (THS)

What is Tolosa-Hunt Syndrome?

Tolosa-Hunt syndrome (THS) is a rare inflammatory disease, usually on one side, that affects the cavernous sinus (a space behind the eye at the base of the skull), the opening into the eye socket, or the socket itself. The inflammation is granulomatous, its cause is unknown, and it weakens the nerves that move the eye.^[1] It needs specialist diagnosis and should never be treated first with complementary medicine.

Common symptoms

The hallmark is severe pain around or behind one eye together with weakness of the eye muscles.^[1]

• Deep, boring or stabbing pain around one eye or one side of the head
• Double vision and limited eye movement, most often from the third cranial nerve and less often the sixth or fourth^[2]
• A drooping eyelid
• Sometimes reduced vision^[2]

Causes and risk factors

The cause is not known.^[1] What matters most is that many other conditions look the same at first. Lymphoma and other tumors, infections, blood vessel inflammation, sarcoidosis and IgG4-related disease can all cause painful eye-muscle weakness and must be ruled out.^{[1, 3]}

How it is diagnosed and treated conventionally

Diagnosis requires one-sided orbital pain, weakness of the third, fourth or sixth cranial nerve, granulomatous inflammation shown on MRI or biopsy, and exclusion of other causes.^[1] Blood tests, and sometimes spinal fluid analysis, are part of the work-up to look for other causes; reported results vary.^[2]

Corticosteroids are the main treatment, and the response can be dramatic.^{[1, 2]} A fast response to steroids does not confirm the diagnosis, because tumors and infections can improve briefly as well, so follow-up imaging and continued monitoring are advised.^{[3, 4]} Recovery of eye movement is slower and sometimes incomplete.^[2] Steroid-sparing immune drugs or radiotherapy are options when steroids are not enough.^[3]

Relapse is common. A pooled analysis of 456 patients found that about one in four had a recurrence.^[5]

Why Tolosa-Hunt Syndrome calls for a whole-person approach

Medical treatment controls the inflammation, but people often live for months with the after-effects of the illness and of its treatment. Pain, double vision, steroid side effects and worry about relapse each affect daily life.

Supportive care addresses those burdens. It does not act on the disease, and it has a place only when the diagnosis is secure and your neurologist or ophthalmologist is directing treatment.

Inflammation and the immune system

Inflammation is the core of the disease, and it is treated with drugs that suppress the immune response.^[1] Anything that might interfere with those drugs, including herbs, needs to be checked with the treating team.^[6]

Nerve pain

Pain does not always settle with treatment. In reported series, relief after steroids varied, with rapid improvement in some people and prolonged symptoms in others.^[2]

Double vision and daily function

Double vision, a drooping lid and reduced vision are frequent and can limit driving, reading and work while the nerves recover.^[2]

Steroid side effects

Steroid treatment has its own effects on the body. Glucocorticoids can cause musculoskeletal, digestive, cardiovascular, hormonal, eye, skin, immune and mood or sleep-related side effects, and careful monitoring helps limit them.^[7]

Acupuncture as supportive care in Tolosa-Hunt Syndrome

What the research shows

There are no clinical trials of acupuncture for Tolosa-Hunt syndrome. The direct evidence is a single case report: a 70-year-old woman whose eye-muscle weakness, which followed a Lyme disease (Borrelia) infection, improved with corticosteroids but who was left with severe facial pain that did not respond to opioids. After a course of acupuncture her pain score fell from 10 to 5 out of 10, the effect faded over four months, and a second course brought similar relief.^[8] A small case series by the same lead author, which included Tolosa-Hunt syndrome among several painful eye conditions, reported reduced pain without side effects.^[9] Case reports cannot show that the treatment caused the change.

The remaining evidence is about related symptoms, not this disease:

• Eye-muscle weakness: A meta-analysis of 18 trials (1,150 participants) of oculomotor (third) nerve palsy, not specifically Tolosa-Hunt syndrome, found better response rates and double-vision scores with acupuncture, but rated the evidence low or very low quality, with most trials done in China.^[10]
• Chronic pain: An analysis of individual data from 20,827 patients in 39 trials, covering chronic headache and musculoskeletal pain, found acupuncture better than both sham and no acupuncture, with a small difference against sham.^[11]
• Sleep: A meta-analysis of insomnia trials found sleep quality improved with acupuncture compared with sleep medication after three or more weeks, with very inconsistent results between trials. This is evidence for insomnia in general, not for steroid-related sleep problems.^[12]

How acupuncture may work

For pain, the proposed explanation is that needling changes how the nervous system processes pain signals, including release of the body's own opioid-like chemicals in the brain and spinal cord.^[9] Trial data suggest that part of the benefit comes from factors beyond the needle points themselves, although the effect is not explained by placebo alone.^[11] No research shows that acupuncture reduces granulomatous inflammation.

What treatment involves

Treatment uses fine, sterile, single-use needles, usually left in place for about 20 to 40 minutes, over a short course of visits followed by reassessment. In the case report, treatment was given in two series, the second of 12 sessions.^[8]

Serious problems from acupuncture are rare; about 9 in 100 patients have a minor reaction such as brief bleeding, soreness or redness at a needle site.^[13] Steroids affect the skin and the immune system, so tell the practitioner about your steroid dose and any other immune-suppressing drugs, as well as blood thinners, bleeding disorders, pregnancy or a pacemaker.^[7]

Ayurvedic medicine as supportive care in Tolosa-Hunt Syndrome

The Ayurvedic view

Ayurveda has no classical disease category that matches Tolosa-Hunt syndrome. Practitioners usually interpret one-sided head and eye pain with nerve weakness through the traditional concepts of Vata (movement and nerve function) and Pitta (heat and inflammation). This is a traditional framework, not an explanation of the disease.

Therapies that may be used

Supportive care during recovery is gentle and individualized:

• Regular meals, sleep times and rest for the eyes
• Gentle head and neck oil massage
• Selected herbs for sleep or stress, only after checking them against your medicines

Procedures applied to the eye or nose, such as tarpana and nasya, were part of the treatment in one published case of double vision after injury, but they should not be used in Tolosa-Hunt syndrome without your eye specialist's agreement.^[14] Panchakarma cleansing procedures are not appropriate during active disease or while you are on high-dose steroids.

What the research shows

No clinical trials or case reports of Ayurvedic treatment for Tolosa-Hunt syndrome were found in PubMed. The closest report is a single patient with third-nerve palsy after an orbital fracture whose double vision resolved over two months of Ayurvedic treatment, which says little about an inflammatory disease.^[14]

For symptoms, a meta-analysis of five placebo-controlled trials (400 participants) found a small improvement in sleep with ashwagandha extract, with limited long-term safety data.^[15] Ashwagandha is also described as having immune-modulating activity, which is a reason for caution in someone taking immune-suppressing treatment.^[16]

Herbal medicine as supportive care in Tolosa-Hunt Syndrome

Herbs and formulas that have been studied

No herb or formula has been tested in Tolosa-Hunt syndrome. A Korean clinic reviewed the records of 569 patients with third, fourth or sixth nerve palsies of mixed causes who took a traditional herbal decoction.^[17] Turmeric and its extract curcumin have been studied for effects on inflammation in many other conditions.^[18]

What the research shows

The evidence does not support herbs as treatment for this disease. In the Korean review, most patients who started the decoction within 12 weeks of onset recovered, but there was no comparison group, and the authors advised cautious interpretation.^[17] A meta-analysis of 66 trials found curcumin lowered blood markers of inflammation such as C-reactive protein, but none of those trials involved Tolosa-Hunt syndrome, and a change in a blood marker is not the same as controlling granulomatous inflammation.^[18]

Safety and herb-drug interactions

Interactions matter more than usual here because treatment depends on steroids and sometimes other immune-suppressing drugs. St John's wort lowers blood levels of cyclosporine and tacrolimus, and reduced cyclosporine levels have led to organ rejection in transplant patients.^[19] Eye specialists advise that patients with inflammatory eye disease be asked about complementary therapies because of possible interactions with immune-suppressing treatment.^[6]

In one study, about one fifth of Ayurvedic products bought online contained detectable lead, mercury or arsenic.^[20] Herbs should come from tested sources and be reviewed by your treating physician. Tell us if you are pregnant or breastfeeding or have diabetes, liver or kidney disease.

Translating traditional medicine into modern biological language

The links drawn here are interpretation, not equivalence. Chinese medicine would describe one-sided eye pain with paralysis of eye movement as obstruction of qi and blood in the channels around the eye. Ayurveda would speak of disturbed Vata and Pitta. In modern terms the measurable process is granulomatous inflammation pressing on cranial nerves.^[1]

Research on acupuncture in related conditions looks at pain signaling and nerve recovery, not at the inflammation itself.^{[9, 10]} No study has shown that traditional patterns correspond to specific biological processes in this disease.

How this care fits with your medical care

Supportive care here begins only after a neurologist or ophthalmologist has made the diagnosis and started treatment. Keep every follow-up visit and scan, and do not reduce or stop steroids on your own, since steroids must be tapered under medical direction and relapse is common.^[5]

Please bring your diagnosis, MRI reports, your current steroid dose and taper plan, and a full list of medicines and supplements. We ask that your treating team knows you are receiving care here.

When to seek urgent medical care

New or returning eye pain with double vision always needs prompt medical evaluation, because serious conditions can look like Tolosa-Hunt syndrome.^[3]

• Sudden loss of vision or rapidly worsening vision
• New double vision, a drooping eyelid or an enlarged pupil
• A sudden, severe headache unlike any before
• Fever, stiff neck, confusion, weakness or trouble speaking
• Symptoms returning while steroids are being reduced
• Fever or signs of infection while taking steroids or other immune-suppressing drugs

For sudden vision loss, a severe sudden headache or stroke-like symptoms, call 911 or go to the nearest emergency department.