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Updated: May 17, 2026

Echocardiographic Assessment Using Subxiphoid-Only Examination for Hypotensive Patients
Published on: April 18, 2025
[Hyperventilation echocardiography in vasospastic angina pectoris diagnosing].
M Kaletová1, D Marek, E Sovová
1Interni Klinika-kardiologicka Lekarske fakulty UP a FN Olomouc. Mkaletova@seznam.cz
Hyperventilation echocardiography effectively diagnoses variant angina pectoris, even in cases with negative coronary angiography. This diagnostic tool aids in identifying coronary artery spasm when other tests are inconclusive.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Clinical Medicine
Background:
- Variant angina pectoris, characterized by coronary artery spasm, presents diagnostic challenges.
- Hyperventilation echocardiography is a recognized test for suspected variant angina, offering good sensitivity and specificity.
- The diagnostic yield is influenced by patient selection and specific clinical indicators.
Observation:
- A 37-year-old male presented with typical angina pectoris at rest and non-Q myocardial infarction.
- Coronary angiography results were negative, necessitating further diagnostic evaluation.
- Hyperventilation echocardiography revealed characteristic ischemic patterns, confirming variant angina.
Findings:
- Hyperventilation echocardiography demonstrated clear ischemic changes during the test.
- The diagnostic accuracy of hyperventilation echocardiography was highlighted in this challenging case.
- The test proved crucial in diagnosing variant angina when conventional angiography was negative.
Implications:
- Hyperventilation echocardiography is a valuable tool for diagnosing variant angina pectoris.
- This case underscores the importance of considering coronary artery spasm in patients with unexplained chest pain.
- The findings support the utility of hyperventilation echocardiography in clinical practice for specific patient populations.
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