Dtsch Med Wochenschr 2017; 142(21): 1586-1593
DOI: 10.1055/s-0043-104469
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© Georg Thieme Verlag KG Stuttgart · New York

Optimale Diagnostik und Therapie der mikrovaskulären Angina pectoris

Optimal Diagnostics and Therapy for Microvascular Angina Pectoris
Peter Ong
,
Udo Sechtem
Further Information

Publication History

Publication Date:
18 October 2017 (online)

Abstract

Patients with microvascular angina are characterized by angina pectoris with proof of myocardial ischemia in the absence of any relevant epicardial stenosis and without myocardial disease (type 1 coronary microvascular dysfunction according to Crea and Camici). Structural and functional alterations of the coronary microvessels (diameter < 500 µm) are the reason for this phenomenon. Frequently such alterations are associated with cardiovascular risk factors. Patients with angina pectoris without epicardial stenoses represent for 10 – 50 % of all patients undergoing coronary angiography depending on the clinical presentation. Diagnostic approaches include non-invasive (e. g. combination of coronary CT-angiography and positron emission tomography/echo Doppler-based coronary flow reserve measurements) as well as invasive procedures (coronary flow reserve measurements in response to adenosine, intracoronary acetylcholine testing). Pharmacological treatment of these patients is often challenging and should be based on the characterization of the underlying mechanisms. Moreover, strict risk factor control and individually titrated combinations of antianginal substances (e. g. beta blockers, calcium channel blockers, nitrates, ranolazine, ivabradine etc.) are recommended.

Die Evaluation von Patienten mit Angina pectoris zählt zu den Kernaufgaben der Inneren Medizin/Kardiologie. Bei typischen Symptomen und Zeichen für eine myokardiale Ischämie erfolgt in der Regel eine Koronarangiografie. Diese zeigt jedoch relativ häufig keine relevanten Koronarstenosen. Oft wird dann, vor allem bei Frauen, die fatale Diagnose „nicht-kardialer Brustschmerz“ gestellt, obwohl eine mikrovaskuläre Angina pectoris vorliegt.

 
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