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Angina I: Introduction

Angina I: Introduction

Definition and Symptoms: Angina (angina pectoris) is chest pain or discomfort caused by myocardial ischemia, which occurs when the heart muscle receives insufficient oxygen-rich blood. It typically manifests as pressing, squeezing, or crushing sensations in the chest and may radiate to the shoulders, arms, neck, jaw, or back.Primary Cause: In a healthy state, the coronary arteries can dilate (widen) to increase blood flow and meet the increased oxygen demand during physical activity or...

Angina II: Classification

Angina II: Classification

Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...

Angina III: Clinical Manifestations and Assessment

Angina III: Clinical Manifestations and Assessment

Angina manifests as chest pain, tightness, or squeezing discomfort typically located behind the breastbone. It can radiate to the neck, jaw, shoulders, and inner aspects of the upper arms, most commonly the left arm. Patients may experience shortness of breath, fatigue, profuse sweating, dizziness, indigestion, heartburn, palpitations, anxiety, and vomiting as accompanying symptoms. This pain often lasts a few minutes and is triggered by physical exertion, emotional stress, heavy meals, or cold...

Angina IV: Management

Angina IV: Management

IntroductionThe management of angina requires a comprehensive approach that includes pharmacological therapies, medical procedures, and lifestyle modifications.Pharmacological TherapiesAntiplatelet agents, such as aspirin, clopidogrel, prasugrel, and ticagrelor, play a pivotal role in preventing thrombus formation in patients with angina. These medications inhibit platelet aggregation and reduce the likelihood of myocardial infarction and other cardiovascular events.Anticoagulants, including...

Angina V: Nursing Management

Angina V: Nursing Management

Angina, a symptom of myocardial ischemia, requires a structured nursing management approach to ensure effective care and prevent complications like myocardial infarction. Comprehensive nursing care involves assessing, diagnosing, planning, implementing interventions, and evaluating outcomes, all tailored to the individual patient's needs.Patient AssessmentNursing assessment begins with a detailed subjective evaluation of symptoms, which typically include chest pain or pressure radiating to the...

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...

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Related Experiment Video

Updated: Jun 8, 2026

Intracoronary Acetylcholine Provocation Testing for Assessment of Coronary Vasomotor Disorders

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Published on: August 18, 2016

[Angina pectoris without coronary stenosis--current concepts].

A Yilmaz¹, U Sechtem

¹Abteilung für Kardiologie, Robert-Bosch-Krankenhaus Stuttgart.

Deutsche Medizinische Wochenschrift (1946)

|September 11, 2010

Summary

Angina pectoris (AP) and myocardial ischemia can occur without significant coronary stenoses, often due to coronary vasospasm or microvascular dysfunction. Differentiating these conditions is crucial for accurate diagnosis and treatment.

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Area of Science:

Cardiology
Vascular Biology
Internal Medicine

Background:

Angina pectoris (AP) and myocardial ischemia are often associated with significant epicardial coronary stenoses.
However, these conditions can also occur in patients without obstructive coronary artery disease (CAD).

Observation:

This review explores current concepts for AP and myocardial ischemia in patients without significant epicardial stenoses.
Clinical differentiation between resting AP and exercise-induced AP is essential.
Resting AP may stem from coronary vasospasm, while exercise-induced AP can result from microvascular dysfunction.

Findings:

Pathological stress tests in the absence of significant stenosis are not necessarily "false positive".
Proatherogenic cardiovascular risk factors are linked to both atherosclerotic CAD and coronary vasomotility disorders.
Myocardial ischemia is a common characteristic of both conditions.

Implications:

Understanding coronary vasomotility disorders is key, as their exact pathomechanisms are still being elucidated.
Potential causes include endothelial dysfunction, smooth muscle cell abnormalities, genetic predisposition, and immunological factors.
Intracoronary provocative testing can aid in diagnosing and differentiating subtypes of coronary vasomotility disorders.