3.3 | Adverse events
We observed a small, clinically non-relevant pericardial effusion in
three patients (16%) on transthoracic echocardiography the day after
the procedure, all of which resolved without additional interventions.
One additional patient (5%) complained about symptoms compatible with
mild pericarditis. In one patient (5%), a dual chamber pacemaker was
implanted the day following the procedure because of symptomatic sinus
arrest. Two VOMs were present in one patient (Figure 7). Cannulation of
the smaller VOM resulted in uneventful dissection and VOM-EI of the
larger VOM was successful. In another patient, a VOM with a normal
diameter dissected during cannulation. Repeat cannulation of the VOM and
VOM-EI was successful without any complications at the end of the
ablation procedure.