大约每隔 6 个月应该对血浆卟啉进行检测,从而可以在复发早期进行再次治疗。肝细胞癌的罹患风险增加,建议每隔 6~12 个月进行肝影像检查和 α-甲胎蛋白检测。[8]Rossmann-Ringdahl I, Olsson R. Porphyria cutanea tarda in a Swedish population: risk factors and complications. Acta Derm Venereol. 2005;85:337-341.http://www.ncbi.nlm.nih.gov/pubmed/16191856?tool=bestpractice.com[20]Gisbert JP, Garcia-Buey L, Alonso A, et al. Hepatocellular carcinoma risk in patients with porphyria cutanea tarda. Eur J Gastroenterol Hepatol. 2004;16:689-692.http://www.ncbi.nlm.nih.gov/pubmed/15201583?tool=bestpractice.com[21]Bruix J, Sherman M; Practice Guidelines Committee, American Association for the Study of Liver Diseases. Management of hepatocellular carcinoma. Hepatology. 2005;42:1208-1236.http://onlinelibrary.wiley.com/doi/10.1002/hep.20933/fullhttp://www.ncbi.nlm.nih.gov/pubmed/16250051?tool=bestpractice.com
在重复放血期间,应检测血清铁蛋白水平和血红蛋白或红细胞压积水平。