Table 3.

Morbidity rates in intraoperative radiofrequency ablation (IRFA) by size of series

	All series, mean (min–max)	Series with > 50 patients, mean (min–max)	Series with ≤ 50 patients, mean (min–max)
Number of procedures, n	1755	1340	415
Mortality	1.2% (0–5.2%)	1.1% (0–2.9%)	1.4% (0–5.2%)
Morbidity	13.6% (0–47.6%)	12.0% (2–27%)	18.8% (0–47.6%)
Wound infection	2.8% (0–13.4%)	2.7% (0–6.5%)	3.1% (0–13.4%)
Biliary complications	1.7% (0–9.5%)	1.3% (0–7.9%)	2.7% (0–9.5%)
Pleural effusion	1.4% (0–6.2%)	1.6% (0–6.2%)	0.7% (0–5.1%)
Liver failure	1.4% (0–14.2%)	1.3% (0–7.9%)	1.4% (0–14.2%)
Vascular complications	1.3% (0–5.3%)	1.4% (0–4.6%)	0.7% (0–5.3%)
Skin burns	0.5% (0–6.2%)	0.4% (0–4%)	0.7% (0–6.2%)
Collateral injuries	0.2% (0–1.5%)	0.3% (0–1.5%)	0.0% (0–0%)