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Figure 4 :Shows simultaneous right and left ventricular pressure tracings in a child with tetralogy with Fallot and restrictive VSD. Note the triangular pattern of the right ventricular waveform with post extrasystolic potentiation

Figure 4 :Shows simultaneous right and left ventricular pressure tracings in a child with tetralogy with Fallot and restrictive VSD. Note the triangular pattern of the right ventricular waveform with post extrasystolic potentiation