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Intracoronary Acetylcholine Provocation Testing for Assessment of Coronary Vasomotor Disorders
Published on: August 18, 2016
[Angina Pectoris and the Importance of Coronary Microcirculation in Practice]
Julia Stehli1, Alessandro Candreva1, Barbara E Stähli1
1Klinik für Kardiologie, Universitätsspital Zürich, Schweiz.
Insights
Microvascular angina, common in post-menopausal women, is often undetected due to underused diagnostic tools. Early detection and targeted therapy improve outcomes for coronary microvascular dysfunction.
Area of Science:
- Cardiology
- Vascular Biology
- Internal Medicine
Context:
- Microvascular angina is a frequent manifestation of coronary microvascular dysfunction (CMD).
- It disproportionately affects post-menopausal women over 50, impacting quality of life and prognosis.
- CMD is often undiagnosed due to limited use of diagnostic tools for coronary microvascular function assessment.
Purpose:
- To highlight the clinical significance of microvascular angina and coronary microcirculation.
- To emphasize the diagnostic challenges and consequences of underdetection.
- To outline current and future therapeutic strategies for CMD.
Summary:
- Invasive coronary catheterization, including coronary flow reserve and acetylcholine provocation testing, can diagnose CMD.
- Targeted therapies involve lifestyle changes, secondary prevention, and anti-anginal medications.
- Current research aims to develop novel diagnostic and therapeutic approaches for improved CMD management.
Impact:
- Improved detection and management of microvascular angina can enhance patient quality of life and clinical outcomes.
- Increased utilization of diagnostic tools for coronary microvascular function is crucial.
- Advancements in research promise better therapeutic strategies for coronary microvascular disease.
Abstract:
Angina Pectoris and the Importance of Coronary Microcirculation in Practice Abstract. Microvascular angina is a common manifestation of coronary microvascular dysfunction, particulary prevalent in post-menopausal women above the age of 50 and associated with impaired quality of life and poor clinical outcomes. However, microvascular angina remains largely undetected given the underuse of diagnostic tools for the assessment of coronary microvascular function. As a consequence, many of these patients suffering from coronary microvascular dysfunction fail to receive the appropriate medical treatment and remain in the long term symptomatic. Invasive coronary catheterization with measurement of coronary flow reserve and intracoronary acetylcholine provocation testing allows for the assessment of coronary microvascular dysfunction, and a therapy targeting specific physiological pathways can be implemented. A targeted therapy includes lifestyle modifications, secondary prevention measures, and anti-anginal medication. Ongoing clinical research in the field is expected to deliver novel diagnostic and therapeutic concepts for an improved management of patients with coronary microvascular disease.
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