Table 3

Supraventricular Tachycardia Characteristicslegend

Tachycardia Diagnosisp Value
AVNRTORTAT
OverallTypicalAtypical∗∗
Number (%)113 (57%)102 (51%)11 (6%)62 (31%)25 (13%)NA
Cycle Length (ms)333 ± 71329 ± 71363 ± 63338 ± 56361 ± 660.17
Septal VA Interval (ms)55 ± 4743 ± 28162 ± 55157 ± 58214 ± 70<0.001
  • VA interval ≤70 ms (“slow-fast”).

  • ∗∗ VA interval >70 ms (“slow-slow” or “fast-slow”).

  • legend AT = atrial tachycardia; AVNRT = atrioventricular nodal reentry; ORT = orthodromic reciprocating tachycardia; VA = ventriculoatrial.