Objective To increase the awareness of this rare cause of haematuria a
nd to describe the operative techniques available for its treatment. P
atients and methods The investigation and treatment of five patients w
ith the nutcracker syndrome have been reviewed. Results A new variant
of the nutcracker syndrome is described. Using a combination of venoly
sis, Gortex graft renal vein interposition and an anterior nephropexy,
the haematuria of four patients has ceased and improved in one. Concl
usion The nutcracker syndrome is a rare cause of haematuria which resp
onds successfully to surgical treatment. Successful treatment does not
appear to be related to lowering of the renal vein pressure.