title: Heart-rate slowing and junctional rhythm following intravenous succinylcholine with and without intramuscular atropine preanesthetic medication.
abstract: The incidence of heart-rate slowing (greater than 15 percent) and junctional rhythm after two injections of succinylcholine (1 mg/kg), separated by 5 minutes, was determined in adult patients. All patients received intramuscular morphine as preanesthetic medication 60 to 90 minutes before intravenous thiamylal anesthetic induction. Intramuscular atropine (mcg/kg) 60 to 90 or 15 to 20 minutes before anesthetic induction did not alter the incidence of first or second succinylcholine dose heart-rate slowing or junctional rhythm as compared with patients receiving only morphine premedication.
mesh_terms: D000770:Anesthesia, Endotracheal; D000771:Anesthesia, Intravenous; D001145:Arrhythmias, Cardiac / Q000139:chemically induced* / Q000517:prevention & control; D001285:Atropine / Q000627:therapeutic use; D003864:Depression, Chemical; D006339:Heart Rate; D006801:Humans; D009020:Morphine; D009609:Nitrous Oxide; D011229:Preanesthetic Medication; D013390:Succinylcholine / Q000009:adverse effects*; D013840:Thiamylal
chemical_list: D013840:Thiamylal; D009020:Morphine; D001285:Atropine; D013390:Succinylcholine; D009609:Nitrous Oxide