Abstract

ACCURACY OF GUYS STONE SCORING SYSTEM FOR PREDICTING STONE FREE STATUS AND POST OP COMPLICATIONS IN PCNL: THE FACTS & THE REALITY

Dr. Shivalingaiah M.*, Dr. Navaneeth Srinidhi R. and Dr. Pramod Adiga

ABSTRACT

Introduction & Objectives: To study and analyse demographics and correlation with clinical outcome in patients with Renal Calculus Disease & to assess the accuracy and usefulness of Guys Stone Scoring systems in predicting post PCNL Stone Free Status & Complication rates. Methods: 253 patients Diagnosed with renal calculus disease and were planned for PCNL at Institute of Nephro Urology, Bangalore from Jan 2017 to Nov 2018 were enrolled prospectively. Various demographic, Laboratory and Clinical Variables were collected & Statistical analysis done after deriving various Nephrolithometry scores. Results: Present study had 146 males & 107 females with mean age of 42.23 (IQR=19-84).GSS categories of grade 1,2,3,4 were noted in 124,69,41,19 patients respectively.15 patients needed post op blood transfusion and Post PCNL SFR was noted in 216 patients with 37 patients needing auxillary procedures including Relook. Complications as graded by Clavian Dindo Classification 1,2,3a,3b,4 were seen in 32,25,5,0,1 respectively. Conclusions: Preoperative nomograms can prove as a valuable tool for proper patient counseling about the stone-free rate and complications associated with PCNL. Guys Stone Score was equally effective and accurate in predicting success rate of the procedure and predict Complications.

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