[Sinusal dysfunction secondary to the ingestion of diltiazem, cured by the administration of intravenous calcium].
An elderly patient, receiving long-term oral diltiazem at the usual dosage, presented a sudden attack of junctional bradycardia at 35 b X min-1; this was badly tolerated by the patient. The diltiazem blood level was normal. After recovery, nodal investigations were also normal. The treatment of this accident due to a calcium-blocker is stressed: the intravenous injection of a calcium salt only was sufficient, with a return to near-normal sinus function, so avoiding the necessity of pacing.
D000368:Aged; D001919:Bradycardia / Q000139:chemically induced* / Q000188:drug therapy; D002118:Calcium / Q000008:administration & dosage / Q000627:therapeutic use*; D004110:Diltiazem / Q000009:adverse effects* / Q000097:blood; D004562:Electrocardiography; D006801:Humans; D007275:Injections, Intravenous; D008297:Male
D004110:Diltiazem; D002118:Calcium
Dysfonction sinusale secondaire à la prise de diltiazem corrigée par administration de calcium intraveineux.