الملخص
Objective: To investigate the epidemiology, clinical characteristics, on-site dust monitoring and individual protection of the patients with artificial stone-related silicosis. Methods: In March 2022, the literature on artificial stone-related silicosis published from January 1965 to February 2022 was searched in China Journal Full-text Database, Wanfang Database, VIP Database, EMbase and PubMed. Chinese and English search terms include "silica dust""silica dust""silicosis""artificial stone""pneumoconiosis", etc. References were included according to inclusion and exclusion criteria, and data were extracted. The epidemiological characteristics, natural course of disease, workplace dust concentration and individual protection level of patients with artificial stone-related silicosis were analyzed by systematic review. Results: A total of 30 literatures were included, including 7 cohort studies, 14 cross-sectional studies, 3 case-control studies and 6 case reports. A total of 1358 patients with artificial stone-related silicosis were diagnosed from 1997 to 2020, with an average age of 41.5 years old and an average dust exposure time of 11.3 years. Among them, 36.2% (282/778) had progressive mass fibrosis or accelerated progressive silicosis at first diagnosis. Chest imaging showed diffuse small nodule shadow, pulmonary fibrosis, and silico-alveolar proteinosis. Pulmonary function showed restricted or mixed ventilation disorder with or without decreased diffusion volume. The disease progressed rapidly, with progressive mass fibrosis, respiratory failure, and even death. Patients engaged in artificial quartz stone processing, with high concentration of silica including ultra-fine particles, most of which were dry operation, lack of on-site ventilation measures and no effective personal protection. Conclusion: The artificial stone processing workers suffer from artificial stone-related silicosis due to dry cutting, lack of on-site dust removal facilities and personal protective measures, and the disease progresses rapidly, leading to poor prognosis.
الملخص
In this paper, 177 cases of artificial stone-related silicosis in interior decoration workers from Israel, Spain, USA, Italy and Australia were analyzed. Interior decoration workers were from small businesses (or workshops), engaged in kitchen and/or bathroom artificial stone countertops cutting, grinding, polishing and other reprocessing. In the working environment, the content of crystalline silica in artificial stone was more than 70%, and the concentration of silica dust exceeded the relevant standards. Most workplaces used dry cutting without ventilation and dust removal and other dust-proof measures, and most workers did not wear qualified respiratory protective equipment. Taking comprehensive measures such as wet operation, ventilation and dust removal, and individual protection can effectively prevent the occurrence of artificial stone-related silicosis.
الملخص
Objective To explore the CT imaging features of artificial stone?agglomerated quartz associated silicosis. Methods A total of 37 cases confirmed with artificial stone?agglomerated quartz associated silicosis from December 2016 to August 2018 and 38 cases confirmed with traditional classical silicosis at the same period were retrospectively reviewed.The clinical characteristics(including gender, age and working age)and the imaging features(including the nodule features, ground glass opacity, merging features, consolidation, secondary changes, etc.)of the two groups were recorded. The variables including the imaging findings between the two groups were analyzed by Fisher exact test. Results Of all the cases, there were bilateral diffuse small nodules which distributed with upper?zone predominance. Small nodules can merge together and form mass shadow. The complications such as lymphadenopathy, calcification, emphysema/pneumatocele, pulmonary interstitial fibrosis could also be found. Among the various imaging features, the presence of ground glass opacity, small nodules merging together in the subpleural zones, consolidation, pulmonary interstitial fibrosis, pneumothorax were found in 28,16,18,17,5 cases, respectively in artificial stone?agglomerated quartz associated silicosis group, and 2, 4, 4, 4, 0 cases, respectively in the traditional classical silicosis group. The percentages of these above signs were higher in the artificial stone?agglomerated quartz associated silicosis group than the traditional classical silicosis group, and the differences were statistically significant(P<0.01). The artificial stone?agglomerated quartz associated silicosis group had 3 cases with mediastinal lymph node enlargement with calcification, while the traditional classical silicosis group had 12 cases. This sign showed a lower significantly incidence in the artificial stone?agglomerated quartz associated silicosis group than the traditional classical silicosis group(P<0.01). Conclusion The characteristic changes of CT imaging features in artificial stone?agglomerated quartz associated silicosis are small nodules with the background of ground glass opacity, the nodules merging together under subpleural zones, consolidation, mediastinal lymph node enlargement with less calcification and complicated with pulmonary interstitial fibrosis and pneumothorax.
الملخص
Objective@#To explore the CT imaging features of artificial stone-agglomerated quartz associated silicosis.@*Methods@#A total of 37 cases confirmed with artificial stone-agglomerated quartz associated silicosis from December 2016 to August 2018 and 38 cases confirmed with traditional classical silicosis at the same period were retrospectively reviewed.The clinical characteristics (including gender, age and working age)and the imaging features (including the nodule features, ground glass opacity, merging features, consolidation, secondary changes, etc.) of the two groups were recorded. The variables including the imaging findings between the two groups were analyzed by Fisher exact test.@*Results@#Of all the cases, there were bilateral diffuse small nodules which distributed with upper-zone predominance. Small nodules can merge together and form mass shadow. The complications such as lymphadenopathy, calcification, emphysema/pneumatocele, pulmonary interstitial fibrosis could also be found. Among the various imaging features, the presence of ground glass opacity, small nodules merging together in the subpleural zones, consolidation, pulmonary interstitial fibrosis, pneumothorax were found in 28,16,18,17,5 cases, respectively in artificial stone-agglomerated quartz associated silicosis group, and 2,4,4,4,0 cases, respectively in the traditional classical silicosis group. The percentages of these above signs were higher in the artificial stone-agglomerated quartz associated silicosis group than the traditional classical silicosis group, and the differences were statistically significant (P<0.01). The artificial stone-agglomerated quartz associated silicosis group had 3 cases with mediastinal lymph node enlargement with calcification, while the traditional classical silicosis group had 12 cases. This sign showed a lower significantly incidence in the artificial stone-agglomerated quartz associated silicosis group than the traditional classical silicosis group (P<0.01).@*Conclusion@#The characteristic changes of CT imaging features in artificial stone-agglomerated quartz associated silicosis are small nodules with the background of ground glass opacity, the nodules merging together under subpleural zones, consolidation, mediastinal lymph node enlargement with less calcification and complicated with pulmonary interstitial fibrosis and pneumothorax.