*Patients in all treatment groups received dialysis and blood transfusion as necessary. Review of medical record showed no shrinking differences in therapy among treatment groups other than the use of heparin, streptokinase, and antithrombotic agents. **Shown by presence of hypertension and/or raised serum urea or creatine at least three months after acute illness.
calculated. The high (HF) and low (LF) frequency components of heart rate variability were measured from a concomitant 5-minute segment of a 24 hour Holter ECG recording. LF, HF and the L F k F ratio were taken as indices of sympathetic, parasympathetic and sympathovagal balance, respectively. RESULTS: All 3 measures of autonomic tone were related to QT dispersion as follows: for LF: QT Disp (R=+0.56, p
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