Research Article

Maintenance of the inotropic effect of digoxin on long-term treatment.

Br Med J (Clin Res Ed) 1982; 284 doi: (Published 19 June 1982) Cite this as: Br Med J (Clin Res Ed) 1982;284:1819
  1. B E Griffiths,
  2. W J Penny,
  3. M J Lewis,
  4. A H Henderson


    M-mode echocardiograms and systolic time intervals were recorded before and six weeks after stopping digoxin in 11 patients in sinus rhythm to see whether the inotropic effect of digoxin was maintained with long-term treatment. Significant changes indicating a reduction in inotropic state on stopping digoxin were observed in the group. Clinical deterioration occurred in only one patient, associated with evidence of initially impaired cardiac function rather than an atypical response to digoxin. This study provides evidence that chronic digoxin treatment does continue to exert a positive inotropic effect.