Intra-arterial calcium infusion for hydrofluoric acid burns.

摘要: Between March 3, 1987 and Sept. 8, 1989, intra-arterial calcium infusions were used to treat 28 patients (38 extremities) suffering hydrofluoric acid (HF) exposures that failed respond topical treatments. Although 18 of the injuries occurred at work, only 1 patient was using HF in a concentration greater than 12%. Many these products available over counter. Most did not wear protective equipment had no concept danger injury from product. Onset symptoms (pain, erythema edema) delayed 6 h after exposure. Arterial catheters placed begun on protocol 10 ml 10% chloride diluted with 40 normal saline infused 4-h period. Each allowed 4-8 rest period before assessing need for additional infusions. Blood calcium, magnesium, phosphorus, PT, PTT monitored. Infusions repeated until there tenderness. Using tenderness as an end-point increased number compared previous reports. The mean 4.1 (range, 1-10). Success (complete healing) 100%. There significant rise serum but dangerous levels (range 9.3-12.8). also fall which reached requiring magnesium intravenously. changes PTT.