Differentiating and Treating Trigeminal Neuralgia vs Temporal Arteritis

Key Differentiating Features

The American College of Rheumatology suggests that temporal arteritis demands urgent high-dose corticosteroid therapy to prevent vision loss, characterized by continuous, dull, aching pain in the temporal region and jaw, often aggravated by chewing, with associated features including scalp tenderness, visual disturbances, malaise, fever, myalgia, elevated ESR/CRP, and absent temporal pulse 1, 2
The British Journal of Anaesthesia recommends that trigeminal neuralgia requires anticonvulsants like carbamazepine or oxcarbazepine as first-line treatment, characterized by unilateral, paroxysmal attacks lasting seconds to minutes with refractory periods between attacks, sharp, shooting, electric shock-like pain, following the distribution of the trigeminal nerve, triggered by light touch, washing, cold wind, eating, brushing teeth, with rarely sensory changes, no systemic symptoms, and fear and depression may develop if severe 1, 3

The American College of Rheumatology recommends that for suspected temporal arteritis, laboratory tests should include ESR and CRP, which are typically markedly elevated, and a temporal artery biopsy is recommended within 2 weeks of starting treatment 2
The British Journal of Anaesthesia suggests that for suspected trigeminal neuralgia, clinical diagnosis is based on characteristic paroxysmal pain pattern and triggers, and imaging with MRI is recommended to evaluate the trigeminal nerve course and rule out secondary causes 1, 3

The American College of Rheumatology recommends that temporal arteritis treatment should start with high-dose corticosteroids immediately upon suspicion, without waiting for biopsy results, and gradual tapering of corticosteroids based on clinical response and normalization of inflammatory markers 2
The British Journal of Anaesthesia suggests that trigeminal neuralgia treatment should start with carbamazepine or oxcarbazepine as first-line pharmacological treatment, with second-line options including gabapentin, pregabalin, lamotrigine, and baclofen, and surgical interventions such as microvascular decompression and ablative procedures may be considered when medications fail 1, 3, 4