QMODE+ ablation mode: optimal parameter setting and impedance-adapted strategies

Routine QMODE+ ablation with 90 W power, 4 s RF duration, catheter CF < 25 g, 5 mm interlesion distance (reference in this <i>ex vivo</i> model), and perpendicular contact achieves optimal lesion formation. To ensure consistent damage across different impedances, adjust QMODE+ parameters at low impedance and switch to QMODE at high impedance. Parallel contact could be preferred at fragile sites or under low impedance to reduce lesion depth and avoid over-damage.