Comparison of the impact of endoscopic retrograde cholangiopancreatography between pre-COVID-19 and current COVID-19 outbreaks in South Korea: Retrospective survey

Figure 1 Comparison of all endoscopic retrograde cholangiopancreatography performed from February 18 to March 28, before and during the COVID-19 outbreak (n = 269) (P < 0. 005). ERCP: endoscopic retrograde cholangiopancreatography.

Figure 2 Flowchart of all patients who underwent endoscopic retrograde cholangiopancreatography from February 18 to March 28, before and during the COVID-19 outbreak. The values are presented as numbers. ERCP: endoscopic retrograde cholangiopancreatography; RT-PCR of SARS-CoV-2: reverse-transcription polymerase chain reaction of severe acute respiratory syndrome coronavirus-2; ERBD: endoscopic retrograde biliary drainage; EST: endoscopic sphincterotomy; ENBD: endoscopic nasobiliary drainage.