“…In 6 studies 11 , 24 , 29 , 30 , 35 , 36 only PD was performed, while PPPD was used as well as PD in 8 studies. 12 , 13 , 25 – 28 , 31 , 34 One Japanese study 28 included both PPPD and subtotal stomach-preserving PD alongside PD. Eleven studies 13 , 24 , 26 – 31 , 34 – 36 used the ISGPF definition for POPF.…”