A double-blind study comparing four narcotic analgesics of different potencies, meperidine, morphine, fentanyl, and sufentanil, was performed on consenting patients undergoing general or orthopedic surgery under balanced anesthesia. Blood pressure, measured through an indwelling arterial catheter, was recorded continuously, as were ECG and heart rates. The narcotics, made up in equipotent conce…
This investigation was designed to compare the advantages and disadvantages of the older and less potent narcotics, morphine and meperidine, with fentanyl and sufentanil as components of balanced anesthesia