Which type of angina is treated with calcium channel blockers?

Vasospastic angina, also known as Prinzmetal angina, is specifically treated with calcium channel blockers due to the underlying pathophysiology of the condition. This type of angina is characterized by episodes of chest pain caused by coronary artery spasm, which can occur at rest and may not be triggered by exertion. The use of calcium channel blockers helps to relax and dilate the coronary arteries, thereby reducing the frequency and severity of the spasms, leading to relief from angina symptoms.

Calcium channel blockers are effective in managing vasospastic angina because they directly target the smooth muscle cells of the coronary arteries, decreasing intracellular calcium levels and preventing contraction. This mechanism counteracts the spasms that lead to reduced blood flow and ischemic symptoms.

Other types of angina such as stable angina, unstable angina, and microvascular angina typically involve different treatment strategies. Stable angina is usually managed with beta-blockers, nitrates, or lifestyle modifications, while unstable angina is more of an acute emergency often requiring antiplatelet therapy and possibly surgical interventions. Microvascular angina commonly involves disturbances in the small coronary vessels, and its management may include a broader range of therapies rather than solely relying on calcium