علاج متلازمة X القلبية مع أعراض الذبحة الصدرية والتشنج الوعائي الدقيق عند اختبار الأسيتيل كولين

References

DOI: 10.1093/eurheartj/ehae177

If the lumen reduction is <90%, the diagnosis of microvascular spasm is made.

The test is considered positive for macrovascular spasm if symptoms occur, accompanied by ischaemic ECG changes and an angiographic ≥90% reduction of the coronary lumen.

In patients with either epicardial or microvascular spasm following Ach testing, calcium antagonists should be considered as first-line therapy.

Nitrates should be considered to prevent recurrent episodes.