Document KzBJ4jmQjRdEDkgpBrae2OJDK

FILE NAME: Saranac 7th Symposium (SSY) DATE: 1953 Feb 21 DOC#: SSY060 DOCUMENT DESCRIPTION: Letter to Dr. Vorwald from AMA RE Definitions and Clarification of Terms Pertaining to Pneumoconiosis ' - u-- NMO ` VAMEN f . MAAEB. KD . Wrfil>w, D. C. txovoc mamim,alb. CUm*,IU. ...... UTMEBAOBO T. JOHNSTONE, M.D. U. CM. O KrrA.KEH O C,llO . HENmrH.assLEK.no. IM ,N .X f M AMERICAN M tttCAL ASSOCIATION CAM. nKTEKSON,nO^SM J. F. HeCAHAN, n O * * w e Sw w y RAYMOND HUSSEY. H D . M ilT ii 0*m < 4SS1 OECAHfiAKmwEEamk.DVES.. f*.D. CUAEANaCtE D.E,EMliEtKy..N.D. wmuw p. ekeaasb.k .d. ti C!>F. JANES S. ElMNONS. H.O. I-- Hw. JANESIHW.STrE,SKK.JTS., m.B. SSS N. MARRORN STRUT. CHICAGO 10. ILLINOIS February 24# 1953 Dr* Arthur J. Vorwald Director, The Saranac Laboratory and The Trudeau Foundation P.O. Box 551 Saranac Lake, Dev York RECEIVED F.H.H4S PATE:, 3U | T i M7c M.LM Dear Doctor Vorwald: During the Seventh Saranac Symposium, at the session on Definitions and Clarification of Terms Pertaining to Pneumoconiosis, held on lionday morning, September 22, 1952, vour records will shov, that the problem of oefinit.cn of pneumoconiosis was referred for study to Seward Lliller and C. w. Peterson* * This matter-has been given due consideration. ;^e are most favorably impressed with a stetenent prepareo by Leroy U. Gardner, as follows: "I prefer to retain the original meaning and use pneumoconiosis as a generic tern to describe all forms of pulmonary reactions to inhaleo oust, v;xtn no implication as to character, severity or effect o n _ _ function." (The Pathology and Hoentgenoigraphic mani festations of Pneumoconiosis. Leroy *J. Gardner, JAXA 114:535-545, Feb. 17, 1940.) According to our present view,_we have seen no good reason for attempting to improve on this concept. Sincerely yours, PART TWO Tne Inhalation of Certain Industrial Substances Chapter .4 DS2 RECEIVED F.H.H&S DATE. J U l ? 1 fe M.LM Introduction Theodore F. Hatch 4 . ;.s I listened to the progras dealing vith definitions and teminclcir and to the various views 'expressed, it occurred tc me tui t sene of the differences nede evident by tne discussion stem iron ~e fact that ve as c -rou.-> do net neve as complete an understandang as w wo-id like tc hove cf th: mscuanism of action of various d-?ts. As ve gain ir. cur knowl edge of tie basic -ecaanisns of action tne probie.r. of defining the parti cular condition ve vish tc discus: usay become easier. The series of pepers vhich follow pertains tc the inhalation of certain industrial substances. The first papers review brief1- vericus as pects of sene of tie arterials union hove received considerable atten tion in the- past; about tnose materials tvsre has acrunul-tod i great deal cf infemotion which, though far fro.;, being complete, fumis-tes a brood back ground of facts and enpsrier.ee. i noter '.'il_ oe devote: tc lev uncus- trial products - to the recently-developed synthetic silicas v..icu have become tjuitc- important in commercial applications. Finally, some of the never concepts regarding tne fate of dust ..articles tnat .;-*= oeen u.tra_to into tie lung will be discussed. Tne vt* in v ile - particulates are -andied in the course of inhalation, their rece-.i:... v-- +-- - **-- -*> t..e c_o.... w. tion - an understanding of til thee? t..ir.rr is f-- :.t:_ to t better comprehension of tne vno-e ..Tobueu cf c;:-t diraa'ES.