Comparison of Two Different Accesses Single Orifice Percutaneous Endoscopic Surgery in Diagnosis of Ascites of Unknown Origin: A Retrospective Study.

SOPES, which combines the strength of minimally invasive single orifice incision and flexible angles of examination and instrumentation, is a newly developed flexible endoscopic surgical modality that provides new important clinical valuable in evaluation of ascites of unknown origin. Moreover, SOPES via the contralateral McBurney's point was safer than the umbilicus approach.