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FY1 Teaching 20221122 131038 Meeting Recording

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283 views2likes25:36integratededucation-medica6890Original Release: 2026-07-22

Giant Cell Arteritis (GCA), also known as temporal arteritis, is a vision-threatening systemic vasculitis that requires urgent diagnosis and treatment to prevent irreversible vision loss; it is characterized by granulomatous inflammation of medium and large blood vessels, particularly the cranial branches of the carotid artery, and is most common in women over 50 years old, with approximately 50% of patients having associated polymyalgia rheumatica. The key clinical features include unilateral sub-acute headache, jaw claudication, visual disturbances, scalp tenderness, and constitutional symptoms such as fatigue, fever, and weight loss. Diagnosis is supported by elevated inflammatory markers (ESR >50 mm/hour, CRP), temporal artery ultrasound showing the 'halo sign,' and temporal artery biopsy revealing multinucleated giant cells. Immediate treatment with high-dose corticosteroids (60-100 mg prednisolone for mild visual symptoms, or IV methylprednisolone 500-1000 mg for severe visual loss) must be initiated urgently, followed by same-day referral to rheumatology and ophthalmology, with long-term steroid treatment typically continued for 12-18 months with careful monitoring for complications.