Summary
Twenty-three patients with aneurysmal subarachnoid haemorrhage (SAH), who showed an ST segment elevation in their electrocardiograms (ECG), were examined.
There were 12 males and 11 females, with a mean age of 61 years. The clinical condition on admission was Hunt and Kosnik grade II in four, III in seven, IV in one, and V in 11 patients. Computerized tomography (CT) also revealed many cases of diffuse, thick SAH or intracerebral or intraventricular haematoma. Laboratory examinations including serum electrolyte, pH, and PaO2 revealed no abnormalities that might have influenced the ECG. Elevation in the levels of myocardial enzymes in serum was observed in two of the nine patients examined, although the elevation was only slight in one of them. Echocardiography, which was performed on several occasions on all patients, and cardiac catheterization, which was performed on eight patients, revealed a reduction in the motion of the left ventricular apex that was synchronous with ST segment elevation. This is the first report about these phenomena. No abnormalities were observed in the coronary artery. The elevated ST segment was normalized within one week in all patients, accompanied by normalization of the apical wall motion recorded on echocardiograms. In four patients, however, T wave inversion accompanied the improvement of the ST segment and was normalized within three months after the onset.
These results suggest that ST segment elevation in the acute stage of SAH reflects transient cardiac dysfunction rather than myocardial injury. In some patients, however, the elevated serum levels of myocardial enzymes or T wave inversion suggested the presence of myocardial injury. Close follow-up seems to be necessary in such cases
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Kuroiwa, T., Morita, H., Tanabe, H. et al. Significance of ST segment elevation in electrocardiograms in patients with ruptured cerebral aneurysms. Acta neurochir 133, 141–146 (1995). https://doi.org/10.1007/BF01420064
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DOI: https://doi.org/10.1007/BF01420064