Sarić Marko
Institut za medicinska istrazivanja i medicinu rada, Zagreb.
Arh Hig Rada Toksikol. 2009 Nov;60 Suppl:15-21.
This article brings a brief review of asbestos exposure and asbestos-related diseases in Croatia in view of the asbestos ban. The first cases of asbestosis were diagnosed in workers from an asbestos-cement factory in 1961. Between 1990 and 2007, 403 cases of asbestosis had been registered as occupational disease: 300 with parenchymal fibrosis and the rest with parenchymal and pleural changes, or pleural plaques. As a rule, asbestos-related changes were diagnosed at an early stage thanks to regular checkups of the exposed workers. Pleural plaques, considered to be the consequence of asbestos exposure, were also occasionally found in subjects who lived in areas with asbestos processing plants, but were not occupationally exposed. Early epidemiological studies on respiratory and gastrointestinal tract tumours in areas with an asbestos processing plant (1994) and an asbestos-cement plant (1995, 1996) focused on the occurrence of malignant tumours in persons exposed to asbestos at work or in the environment. More recently, the focus has shifted to the malignant pleural mesotelioma (MPM). An epidemiological study published in 2002 showed that the MPM incidence was significantly higher in the coastal area than in the rest of the country. About two thirds of patients with the tumour were occupationally exposed to asbestos. This uneven distribution of the tumour incidence is obviously related to shipbuilding and other industrial sources of asbestos exposure located in the coastal Croatia. Sources of environmental exposure to asbestos also have to be taken into account. The second part of this article ventures into the issues ahead of us, after asbestos has been banned in the country. The long latency period of cancers, and particularly of asbestos-related mesothelioma, implies that the incidence of this tumour will not drop over the next few decades. In Croatia, the average annual rate of MPM between 1991 and 2006 was 40, and ranged between 20 in 1991 to 61 in 1999. In 2006 it was 58. Age-standardised incidence of this tumour between 1991 and 1997 was 0.74 per 100,000 (1.34 per 100,000 for men and 0.27 per 100,000 for women). Sadly, the diagnosis of mesothelioma is seldom timely, and treatment is usually unsuccessful.
鉴于石棉禁令,本文简要回顾了克罗地亚的石棉暴露及与石棉相关的疾病情况。1961年,石棉肺的首批病例在一家石棉水泥厂的工人中被诊断出来。1990年至2007年期间,有403例石棉肺病例被登记为职业病:300例伴有实质性纤维化,其余伴有实质性和胸膜改变或胸膜斑。通常,由于对接触石棉的工人进行定期检查,与石棉相关的病变能在早期被诊断出来。胸膜斑被认为是石棉暴露的后果,偶尔也会在居住在有石棉加工厂地区但未从事职业暴露的人群中发现。早期对一家石棉加工厂地区(1994年)和一家石棉水泥厂地区(1995年、1996年)的呼吸道和胃肠道肿瘤的流行病学研究,重点关注在工作或环境中接触石棉的人群中恶性肿瘤的发生情况。最近,重点已转向恶性胸膜间皮瘤(MPM)。2002年发表的一项流行病学研究表明,沿海地区的MPM发病率明显高于该国其他地区。约三分之二的肿瘤患者曾在职业上接触过石棉。这种肿瘤发病率的不均衡分布显然与克罗地亚沿海地区的造船业及其他石棉暴露的工业来源有关。环境中石棉暴露的来源也必须予以考虑。本文的第二部分探讨了该国禁止使用石棉后摆在我们面前的问题。癌症,尤其是与石棉相关的间皮瘤的潜伏期很长,这意味着在未来几十年里这种肿瘤的发病率不会下降。在克罗地亚,1991年至2006年期间MPM的年均发病率为40例,范围在1991年的20例至1999年的61例之间。2006年为58例。1991年至1997年期间该肿瘤的年龄标准化发病率为每10万人0.74例(男性为每10万人1.34例,女性为每10万人0.27例)。遗憾的是,间皮瘤的诊断很少及时,治疗通常也不成功。