Renovascular hypertension following renal transplantation. 
The authors address the multifactored origins of renovascular hypertension following renal transplantation and present the experience with digital subtraction angiography and percutaneous transluminal angioplasty as well as standard angiography and surgical repair in the diagnosis and treatment of transplant renal artery stenosis.  The roles of the renin-angiotensin system of the native kidney and of the allograft in sustaining hypertension after transplantation are reviewed in detail.