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Table 1 Description of the different HOUSE-classes

From: The H.O.U.S.E. classification: a novel endoscopic retrograde cholangiopancreatography (ERCP) complexity grading scale

HOUSE class 1
 Diagnostic ERCP
 Endoscopic sphincterotomy
 Single stone (<10 mm)
 Plastic stent subhilar
 Brush cytology
 Multiple stones or stone >10 mm
 Metal stent
 Plastic stent above hilus
 Intraoperative rendez-vous ERCP
HOUSE class 2
 Intrahepatic stone
 Multiple metal/plasticstents
 ERCP specifically pancreatic
 Intrahepatic interventions
 All patients with PSC or liver Tx
 Prophylactic pancreatic stent
 “Caged” papilla
HOUSE class 3
 All precut-incl pancreatic sphincterotomy
 Mother-Baby Scopy
 Lithotripsy (pancreatic)
 Multiple pancreatic stent
 Confocal endoscopy
 PTC- or EUS-rendez-vous.
 B2, Roux-en Y, Whipple, via enteroscopy, GBY-op