Key result
Diltiazem lowers heart rate via direct inhibitory effects on the sinus node and modulation of cardiac reflex responsiveness, contributing to its clinical effectiveness in ischaemic heart disease.
Why the study?
What is the pharmacological basis and pathophysiological significance of the heart rate-lowering property of diltiazem?
What is the pharmacological basis and pathophysiological significance of the heart rate-lowering property of diltiazem?
This review highlights that diltiazem's clinical effectiveness in ischemic heart disease and hypertension is partly driven by its heart rate-lowering properties via direct sinus node inhibition.
May inform diltiazem selection in IHD; leaves open comparative trials on reflex modulation.
The calcium channel blocker diltiazem lowers heart rate in man and this property probably contributes to its clinical effectiveness in ischaemic heart disease and hypertension. This review examines the pharmacological basis of diltiazem's heart rate-lowering activity and considers its pathophysiological significance. The points discussed include the potent direct inhibitory effect of diltiazem on the sinus node and the frequency-dependence of this action. In addition, the well-balanced tissue selectivity profile of diltiazem and its ability to modulate cardiac reflex responsiveness contribute by counteracting the potential for reflex tachycardia.
No takes yet. Share an insight, caveat, or question.
O'Connor et al. (1999) conducted a review in Ischaemic heart disease and hypertension. Diltiazem was evaluated. Diltiazem lowers heart rate via direct inhibitory effects on the sinus node and modulation of cardiac reflex responsiveness, contributing to its clinical effectiveness in ischaemic heart disease.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: