The New England journal of medicine
-
Randomized Controlled Trial Clinical Trial
Prevention of nitroprusside-induced cyanide toxicity with hydroxocobalamin.
To investigate hydroxocobalamin's role in preventing cyanide intoxication from sodium nitroprusside, we studied two groups of patients. One group received nitroprusside alone, and the other received nitroprusside and hydroxocobalamin. Red-cell and plasma cyanide levels were 83.44 +/- 23.12 and 3.51 +/- 1.01 microgram per 100 ml after nitroprusside alone and were 33.18 +/- 17.29 and 2.18 +/- 0.65 microgram per 100 ml after nitroprusside plus hydroxocobalamin. ⋯ When hydroxocobalamin infusion was stopped before sodium nitroprusside infusion was discontinued, blood cyanide levels and base deficit increased in a manner similar to that in the untreated group. The dose of nitroprusside used in each group did not differ statistically. These data show that hydroxocobalamin prevents cyanide transfer from red cells and plasma to tissue after nitroprusside metabolism, and thereby prevents cyanide toxicity from large intravenous doses of the drug.
-
The Education for All Handicapped Children Act of 1975, which went into effect last October, ensures the right of handicapped children to free appropriate public education. State and local education agencies are required to identify, evaluate and provide services for all disabled children. ⋯ Their involvement will vary somewhat from state to state, but will at a minimum involve counseling parents whose children are under evaluation. The law assumes a sophistication of diagnostic ability and curriculum design that does not yet exist, and therefore places a special burden upon physicians to deal effectively with patients now, while developing better training programs and assessment tools, and makes essential the enhancement of the communication between doctors and educators.