Endoscopic biliary treatment of unresectable cholangiocarcinoma: A meta-analysis of survival outcomes and systematic review

Table 6 Adverse events of endoscopic radiofrequency ablation vs photodynamic therapy

Adverse events
	RFA	PDT	P value
Stent related complications	17	17	0.7
Stent occlusion	14	5	0.008
Stent migration	3	12	0.04
Cholangitis	46	31	0.001
Hepatic abscess	4	3	0.5
Bleeding	1	1	0.9
Moderate/Severe abdominal pain	3	17	0.003
Post-ERCP pancreatitis	3	2	0.5
Phototoxicity	0	2	NA

ERCP: Endoscopic retrograde cholangiopancreatography; NA: Not applicable; RFA: Radiofrequency ablation; PDT: Photodynamic therapy; P: P vaule as it relates to comparisons of each adverse event.