Show S. S L. L Doctor Devises New NewW Way New Way y To Protect Mothers I in Births Color Photos Used in in inI J I Gauging Effects of Anesthetic t 0 New methods of determining the safety and effectiveness of anesthesia anes anes- th thesis thesia sia during child birth which will ultImately result in far less pain paino to o mothers and less danger to baby immediately after birth have ben been discovered Maternity doctors and pediatric experts are hopeful that eventually the new discovery will rule rul out dangerous anesthetics make it possible possible possible pos pos- sible to select safe ones or even discover safer ones While the new method that of taking pictures of the respiratory movements or breathing acts before before before be be- fore birth takes place to show the effects of these various drugs was discovered by Drs Rosenfeld and Snyder of Johns Hopkins ity Dr Barnet E. E Bonar Salt Lake City maternity and expert expert ex ex- pert has devised a still better method meth meth- od use od-use use of colored pictures At Convention Dr Bonar revealed his new method on his return from the western western west west- em ern division meeting of the American American Ameri Amen can Academy of Pediatrics held in in San Francisco last week Also attending the convention were Dr E. E R. R Murphy of Salt Lake City and Dr Mildred Nelson maternal maternal ma ma- director of the Utah social security act program Colored motion pictures taken by Dr Bonar actually show before birth in animals the effects of various drugs used to prevent pain in birth I Such movements it was pointed out by Dr Bonar have only been proven to be definitely present in ift inthe the past year and this method is far superior to the ordinary loose methods of testing the effects of the drugs after the baby is born The work of taking colored pic- pic t T 4 DR DIt BARNET E. E BONAR Ho He uses colored pictures tures turcs was done at the University of Utah with the assistance of Dr C. C M. M Blumenfeld of the university and others Rabbits were used chiefly to tomake make the tests The interest in this work according accord accord- ing to Dr Bonar is to discover I which anesthetics or drugs tend to tobe tobe tobe toI I be extremely dangerous to the baby immediately after birth The fact that new drugs are are being tried all the time shows the ideal one has not yet been obtained obtain he said Attempts will be made to devise some type of instrument precision which will actually record over a along along along long period of time these respiratory respiratory respiratory tory movements |