What to do for variant angina when calcium channel blockers fail to control symptoms

Calcium channel blockers (CCBs) are the established first-line option for long-term prevention of coronary artery spasm in variant angina. When CCB therapy does not achieve adequate control, a defined second-line step is indicated.

Previous treatment — goals not reached

First-line calcium channel blocker therapy failed to achieve abolition or consistent decrease of angina attacks, and failed to eliminate episodes of silent myocardial ischaemia detected on 24/48-hour ECG Holter monitoring. This persistent uncontrolled state is the trigger for escalation.

Second-line approach (partial overview)

When CCBs alone are insufficient, the next step involves adding a long-acting nitrate — or, where available, an alternative vasodilatory agent — to the existing CCB regimen. The specific agents, formulations, and sequencing are set out in the full protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.15420/ecr.2022.47

When CAS-related angina symptoms are not well controlled by CCB therapy, long-acting nitrates or (where available) nicorandil can be added as second-line medications.

View source ↗