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Biomedical subjects

E Caldwell

Publications and source records attributed to E Caldwell.

27 records · Page 2Linked to original sources

Studies of the pain produced by mafenide acetate preparations in burns.

In a double-blind triple cross-over clinical study, 37 patients were exposed to several formulations of mafenide acetate (Sulfamylon Cream) and their pain responses were recorded and converted to a semiquantitative pain index. The 11.2% concentration in cream was two to three times more painful than the 5% concentration. Hypertonicity and not the pH level appears to be the cause of the pain produced by the high (11.2%) concentration. The tonicity of the cream carrier and 11.2% mafenide acetate are 1,080 mOsm/kg and 1,100 mOsm/kg, respectively, for a total of 2,180 mOsm/kg. The carrier cream without glycerol and a 5% concentration of mafenide cream were much less painful than the 11.2% concentration of mafenide. Both afforded a great deal of relief to the patients who received the medications.

Administration, Topical↗

Validity of self-reported crack cocaine use among homeless persons in treatment.

The validity of self-reported crack cocaine use among 131 homeless persons participating in an outpatient substance abuse treatment research demonstration project was assessed by comparing the concordance of self-report and urinalysis results. The subjects were participants in either a Usual Care outpatient program or an Enhanced Care day treatment program that included drug free contingent work therapy and housing. For all subjects across four evaluation points, the false negative classification by self-report (i.e., denied verified use) rate for crack cocaine use was 32.0%. Denied verified use was greater in Usual Care (34.9%) than in Enhanced Care clients (23.7%) and greater at follow-up as compared to treatment entry for all clients. The findings are explained in terms of social desirability and the influence of treatment contingencies and greater accountability specific to the Enhanced Care program. The need for validation of self-reported cocaine use data among homeless persons in settings where contingencies are present and in other drug treatment or research settings is recommended.

Adult↗