Author + information
- Received August 23, 1983
- Revision received February 24, 1984
- Accepted March 29, 1984
- Published online August 1, 1984.
- Robert J. Burns, MD*,1,
- Peter P. Liu, MD1,
- Maurice N. Druck, MD FACC*,1,
- Susan J. Seawright, RTNM1,
- William G. Williams, MD1 and
- Peter R. McLaughlin, MD, FACC**,1
- ↵**Address for reprints: Peter R. McLaughlin, MD, Cardiovascular Unit, 1-ES-424, Toronto General Hospital, 101 College Street, Toronto, Ontario, Canada M5G 1L7.
Forty-four adult patients with tetralogy of Fallot were studied while clinically well at a mean of 14 years (range 5 to 27) after intracardiac repair to examine the association of postoperative ventricular arrhythmias with historical and postoperative hemodynamic data. Twenty-two patients who demonstrated during 24 hour ambulatory monitoring or maximal graded treadmill exercise testing, or both, ventricular premature beats that were multiform, repetitive or increased in frequency during exercise or recovery after exercise were found to differ from patients without such ventricular premature beats in four respects. The patients with complex or exercise-induced ventricular premature beats had a higher right ventricular systolic blood pressure, a higher incidence of residual left to right intracardiac shunt, lower cardiac index and more frequently abnormal left ventricular ejection fraction measured by rest and exercise-gated radionuclide ventriculography. Adults with complex or exercise-induced ventricular premature beats after intracardiac repair of tetralogy of Fallot are characterized by suboptimal hemodynamic repair and preclinical left ventricular dysfunction.
- Received August 23, 1983.
- Revision received February 24, 1984.
- Accepted March 29, 1984.
- American College of Cardiology Foundation