title: Coagulum pyelolithotomy.
abstract: In 25 patients undergoing pyelolithotomy a supplementary coagulum technique has been used. Initial difficulties were found in the preparation, instillation and extraction of the coagulum, but with experience a satisfactory technique has been developed. The type of stone situation most likely to benefit from coagulum pyelolithotomy would seem to be where there is a small, mobile stone or stone fragment lying in a calix or in a wide renal pelvis.
mesh_terms: D005340:Fibrinogen / Q000627:therapeutic use*; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D007682:Kidney Pelvis / Q000601:surgery*; D008722:Methods; D013917:Thrombin / Q000627:therapeutic use*
chemical_list: D005340:Fibrinogen; D013917:Thrombin