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Microvascular angina, adverse outcome: a case report
Akira Nakano1, Jong-Dae Lee, Hiromasa Shimizu
1First Department of Internal Medicine, Fukui Medical University, Matsuoka-cho, 23-3 Shimoaizuki, Fukui 910-1193, Japan.
International Journal of Cardiology
|February 15, 2005
Summary
Sudden death occurred in a patient with microvascular angina (MVA) despite normal epicardial arteries, suggesting microvascular spasm. Severe coronary microcirculation impairment indicates a poor prognosis and need for new treatments.
Area of Science:
- Cardiology
- Vascular Biology
- Diagnostic Imaging
Background:
- Microvascular angina (MVA) is a complex cardiac condition.
- Understanding MVA's pathophysiology is crucial for effective treatment.
- Sudden cardiac death can occur in patients with MVA.
Observation:
- A patient with MVA experienced sudden death.
- ST-segment elevation was observed during attacks without epicardial coronary artery constriction.
- This suggests the occurrence of microvascular spasm.
Findings:
- Doppler guidewire (DGW) and N-13 ammonia positron emission tomography (PET) revealed severe, whole-left-ventricle coronary microcirculation impairment.
- Conventional medical treatments were ineffective for this patient.
- Microvascular angina with severe microcirculatory disturbance and spasm may have a poor prognosis.
Implications:
- The findings highlight the potential severity of microvascular angina when accompanied by spasm and widespread microcirculatory dysfunction.
- Current treatments for MVA may be insufficient in severe cases.
- Novel therapeutic strategies are urgently needed to improve outcomes for patients with severe coronary microcirculation impairment and microvascular spasm.