Single centre review of radiologically-guided percutaneous nephrostomies: a report of 273 procedures.

Introduction: To evaluate the technical success and complications associated with radiologically-guided percutaneous nephrostom ies (PCNs) in a single centre. Materials and Methods: A total of 273 PCNs performed in 190 patients in our hospital over a 3-year period from January 1997 to December 1999 were retrospectively reviewed. The study population consisted of 97 males and 93 females, ranging in age from 13 to 91 years. The main indications were urinary obstruction (77.7%), pyonephrosis (18.3%) and urinary diversion (4%). Demographic variables, technical and risk factors related to the procedure, complications, effect on urine cultures and body te mperature; and subsequent patient management were examined. Results: The technical success rate was 99%. The 30-day mortality was 7.2%, none of which were procedure related. Haemorrhage requiring transfusion occurred in 4.3% while septicaemia affected 3.2% of patients . Drainage catheter complications included catheter dislodgement and blockage which were 11.9% and 4.1%, respectively. Thirty-one per cent of PCNs subsequently underwent ureteric stenting as the definitive treatment modality. Conclusion: Radiologically-guided PCN is a safe procedure with a high technical success rate. Ann Acad Med Singapore 2002; 31:76-80