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[Compromized myocardial perfusion in arrhythmias (author's transl)]
Summary
Myocardial scintigraphy revealed perfusion defects in patients with arrhythmias, even with normal coronary arteriograms. These findings suggest microcirculation abnormalities may underlie arrhythmias in younger individuals.
Area of Science:
- Cardiology
- Nuclear Medicine
- Electrophysiology
Context:
- Arrhythmias of various origins can present with myocardial perfusion abnormalities.
- Coronary arteriograms may appear normal in these cases.
Purpose:
- To investigate the relationship between myocardial perfusion defects and arrhythmias in patients with normal coronary arteriograms.
- To explore potential causes of perfusion defects, including microcirculation abnormalities.
Summary:
- Myocardial scintigraphy showed perfusion defects in 7 patients with arrhythmias.
- Two patients with left bundle branch block had localized defects in the interventricular septum.
- While one defect was attributed to prior myocarditis, small vessel disease is considered for others.
Impact:
- Findings suggest a link between microcirculation abnormalities and arrhythmias in younger patients.
- Highlights the utility of myocardial scintigraphy in evaluating arrhythmias when coronary arteries are normal.