This video demonstrate How to Perform Safe Pyeloplasty - Lecture by Dr R K Mishra. Pyeloplasty is the surgical reconstruction or revision of the renal pelvis to drain and decompress the kidney. Most commonly it is performed to treat an uretero-pelvic junction obstruction if residual renal function is adequate. No medical therapy is available for the treatment of ureteropelvic junction (UPJ) obstruction. ... Conservative treatment may be particularly appropriate in selected children with asymptomatic UPJ obstruction because the obstruction may regress as the child grows.