Document 1QZV7qQMwNxNNKOqqG5goyzLa

oo v=3 P-n --S', Digest of Industrial -fyglene - 12. 454 Electric Shock. Electric Burns and their Treatment. A.S. Gordin. lad. Mod., 10> 87-91 (karofc, 1941)7 In the treatment of electric abode, immediate and continuous artificial reap! atlon, without moving the victim, is the first requisite. Aftor breathing is restored the patient most be kept quiet at least far an hour. As a rule no drugs should be administered. Bums should not bo treated until recovery fro shock appears certain. Amputation, whore necessary .should be delayed if poss until the shock has been overcame. Gas gangrene is a frequent complication, usually appearing 13 to 36 hours after the accident. Tho author has been un successful with serum end drugs of the sulfanilamide type. Tetanus antitoxin should he administered. Deep and severe hemorrhage oust be watched for. yes this reason, very careful nursing is of major Importonoo. Bone involvement d not show In x-rays and soldoa appears before 6 to 18 voeks have elapsed. Ski grafting is usually successful If not attempted too soon. The patient's swat con<L ;ien can be improved by giving him compensation oarly and by putting fata back to work as quickly os possible. 455 Defects of the Cardiac Valves as a Consequence of Electric Shock. S. Eooppcs Klin. Wchnaohr. 19. 1357-61 (1940). 1 German!. The author first discusses 13 cases of cardiac valve and muscular disturbance thought to have resulted, from electric accidents, but finds the problem camp] cated by infection and other factors. `From a number of animal experiments hi concludes that tho eloctrlc current causes disturbances of the nervous oyster the heart end an increase of blood pressure, caused by tbs spasm of tho peril al muscles and central Irritation of the brain. Also found are disturbances tho rhyths or a complete cessation of the heart with typical findings, or fll lotion of the ventrlalo. It is impossible that a valvulardefect could be eat by an electrio accident. 456 Electrio Arc Welding: the Effects of Welding Gases and Times. S.T. Keek, C. McCord and G.C. Harrold. J.AmJted.Asaoc.. 116. 1618-31 (April 12, 1941). The authors briefly describe spot and gas welding with their associated baza; and then oleotrio welding in moro detail. The potential hazards from aleotr arc welding are: (1) the arc itself (ultraviolet emanations, heat, osone, nitrous gas); (8) elactrodes (manganese, chromium, nickel, zinc, magnesita. (3) coating of electrodes (fluorides, allies, silicates, bittaans); and (4) oxygen dofielenoy. Finally they present an abridged version of thslr zporl al work which was reviewed In our Abstract Mo. 783, Boveober, 1940. 457 Infrarod Snectronhotcmetrlo Studies on Hamoglobln as Affected by Cyanide. Methvlone Bins and Carboh Monoxide. M.M. Brooks. Am.J.Physiol.. 133, 311-8 (March 1, 1941j. By moans of a spectrophotometer and infrared-sensitive pbotcmetrlo plates, absorption spoctra of blood in the presence of methylene blue, nitrite, farx cyanide and cyanide ware studied. No changes ware produced by potasslm oyc or by aothylene blue, in the concentrations similar to those occurring in polsonlxgs end their therapy* Sodium nitrite produces a shift in the trans mission nn-rt imm- Tho author concludes that methylene blue does not produce mothemoglobin; also that the aoohanlgm of cyanide poisoning is an olteratidi the oxidation-reduction potential of the ferrous-ferric system of the respl: enzyme, such that the bivalent form is unable to revert to the trivaleat.-At non-toxic oxidant, such as methylene blue or sodims nitrite, say bring the potential back to a normal range, allowing recovery.