Document gbr5qn0Z1D7JrYJ32JZrkkKkJ

Industrial Hygiene Digest - 20 I August, IQUq it r I- !r latency of the symptoms may be 'explained by alovly developing cerebral - -- lr mil red softenirg, but vlthout dentructlon of the' f, Sa.ng_lon cexis . The M.uily toxi; e.:tlr,r." of methyl bromide la atreseed, l a~ complete enclosure of processes la urged -- Condensed from Bull. Hyg. 882 Serum Chloremia and Chlorurla In Blllcoala and Slllco-Tuberculosis. H. Vaselll and F. Fiocchl. Med. d. lavoro 39, 2B2-2BU (Sept. Oct. 1948) Italian . i By meana of the Charpentier-Volhard method the serum-chloremia and chlorurla have been studied In 2^ patients suffering from various stages of silicosis, and the results have been compared vlth the values obtained In tuberculous and ellieo-tuberculous patients. In the stage of diffused reticular fibrosis hypocbloremla and hypochlorurla vaa noted; In the nodular and confluent stages there vaa gradual Increase of eerum-chloremla and chlorurla. On the other hand In silicosis complicated vlth active tuberculosis the same behaviour vaa observed as In chronic phthsla vlth feverish evolution. "The conclusion therefore Is that the silicotic pro cess 4s able to produce a certain perturbation In the chlorine rate of t1-: 4 the blood and urine; but hitherto It has been Impossible to determine the reasons for this." -- Authors' Summary In English i 883 Acute Pneumonitis In a Beryllium Worker. Q.F. Boys ton, Brit. Med. J. 1, 1030-1032 (June 11, 1949). 38: t A case presented clinically, as a bronchiolitis occurring In a man handling fluorescent powders containing beryllium, Is described. Ihe x-ray changes vere miliary In character and completely cleared In eight weeks without residual fibrosis. Die patient made a complete recovery. 3be literature is reviewed. & 884 Ayerza's Disease, Silicosis and Pulmonary Bllharzlasla. & Sir H. Tidy. Brit. Med. J. 1, 977-978 (June 4, 1949). * r I- Ayerza's disease, known In Brazil since 1913, la predominantly sclerosis of the pulmonary artery and Its branches, vlth chronic changes In the lungs. Pulmonary bllharzlasls, consisting of obliterative endar-terltis of the small branches of the pulmonary artery resulting from the action of ova which reach the site as emboli, has been studied In Egypt since 1928. Cyanosis and other features are common to both diseases. F* i S3C- A study of Ayerza's disease above that bllharzlasls is unlikely to be Its principal cause, although It may be contributory. It rather seems to be 4t the result of silicosis occurring at high altltudeo. 885 Chronic Disease as an Iixiustrlal Hygiene Program. C.D. Selby. Am. J. Pub. Health 39 . 590-^01 (Hay. 1949). iVr, Ibis paper reports briefly an the use of vital statistics In Indus trial health administration and practice. In programs In which the main object is protection of employee health, vital statistics are of the great est use. Ihey should Include death rates and non-occupational disability !v.f si