A new electrical impedence plethysmogram: observations in peripheral arterial occlusive diseases.
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Biomedical subjects
Publications and source records attributed to G B Parulkar.
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1 Dipyrone 2.5 g was compared with pethidine 100 mg in a double-blind parallel group study. 2 Patients with moderate or severe postoperative pain following abdominal surgery received one of the two drugs intramuscularly. 3 The two treatment groups were homogeneous when analyzed by age, weight, height, sex, and initial severity of pain. 4 The onset degree and duration of pain relief afforded by both drugs was similar when the groups were compared as a whole or according to initial pain level. 5 No side-effects were attributed to either drug in this study.
A double-blind trial was carried out in 100 patients with moderate to severe post-operative pain to compare the analgesic effectiveness over a 6-hour period of single intramuscular injections of 2.5 g dipyrone and 100 mg pethidine. Maximum pain relief was seen 2 hours after drug administration in both groups and there was no statistically significant difference in responses. No side-effects were reported.
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