Outcomes of microwave versus radiofrequency ablation for hepatocellular carcinoma: A systematic review and meta-analysis

Table 5 Microwave ablation versus radiofrequency ablation for hepatocellular lesions: Meta-analysis of adverse events

Adverse event	No. of studies	OR	95%CI	P for significance	I2		P for heterogeneity
Liver-related morbidity	11	1.51	0.64-3.55	0.342		0	0.91
Postprocedural infections	19	1.3	0.85-1.97	0.222		0	0.83
Postprocedural bleeding	10	2.36	0.92-6.07	0.075		0	0.97
Bile duct injury	5	1.88	0.57-6.23	0.299		0	0.99
Respiratory events	14	1.99	1.07-3.71	0.03		0	0.87
Local events	4	1.62	0.49-5.36	0.426		0	0.57

Liver related morbidity: Decompensation, jaundice, infarction, and portal vein thrombosis; Post-procedural infections: General, peritonitis, and liver abscess. Local events: Burns, pain, and wound complication; Respiratory events: Pleural effusion and pneumothorax. OR: Odds ratio; CI: Confidence interval.