[Death in Horton disease. Prognostic factors]

The authors reported causes of death and searched for prognosis factors in Giant Cell Arteritis (GCA). The diagnosis was confirmed by temporal biopsy in all cases. Fourteen patients died during treatment; thirty-six patients had completely recovered (follow up > 6 months after withdrawal of steroid therapy). The commonest causes of death were cardiovascular (n = 7) and digestive (n = 4); they occurred after an average of 195 days of treatment, half of them during the first three months. One death was due to GCA (autopsy) and five deaths were attributed to the treatment with corticosteroids. The prognosis factors were searched for by comparing age, sex, clinical signs, laboratory data before treatment, past medical history in the both series; further more initial dose of Prednisone and the dose after 180 days of steroid therapy were compared in the two groups. The adverse prognosis factors revealed by this study were: advanced age (p < 0.01), previous ischaemic heart disease (p < 0.05) and higher dose of corticosteroids administered at 6 months of treatment (< 0.01).