Utility of the Guy’s Stone Score in predicting different aspects of percutaneous nephrolithotomy

Khalil, Maria; Sherif, Hammoda; Mohey, Ahmed; Omar, Rabea

doi:10.1016/j.afju.2018.06.005

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…Guy's scoring is easy to perform, simple and rapid to predict the outcome of PCNL. [16][17][18][19] In our study, the percentage of patients with residual stone was 09 (9.89%). 0.0% of GS 1, 12.5% of GS 2, 4.76% of GS 3 patients and 13.33% of GS 4 had residual stone.…”

Section: Discussionmentioning

confidence: 93%

Guy’s stone Scoring in Predicting Post operative Residual Stones

Iqbal¹,

Jamshed²,

Akram³

et al. 2022

JAFMDC

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Objective: To determine the frequency of postoperative residual stone based on preprocedural Guy’s scoring system.Methodology: This cross-sectional descriptive study was conducted from1st June 2018 to 30th November 2019 at University Medical College Faisalabad. All patients with stones in the kidney undergoing PCNL, 20 to 60 years of age of both genders were included. Patients with secondary stones due to pelviureteric junction obstruction, CRF and recurrent stones were excluded. In all patients Guy’s scoring was measured. Then all patients underwent PCNL. After 24 hours of operation, CT scan was done in each patient and residual stone (present/absent) was noted.Results: This study was comprised of 91 patients of age ranged from 20- 60 years. Fifty-three patients (58.24%) were males and 38 (41.76%) females. Seven (7.69%) were of Guy’s grade I, 48(52.75%) grade II, 21(23.08%) grade III and 15 of grade IV. Number of patients with residual stone was 09 (9.89%), 0.0% of GS 1, 12.5% of GS 2, 4.76% of GS 3 and 13.33% of GS 4 patients had residual stone.Conclusion: Pre-PCNL Guy’s scoring is easy, rapid and useful for predicting the residual stone after percutaneous nephrolithotomy. Keywords: Percutaneous nephrolithotomy, Guy’s scoring system, residual stone.

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Section: Discussionmentioning

confidence: 93%

Guy’s stone Scoring in Predicting Post operative Residual Stones

Iqbal¹,

Jamshed²,

Akram³

et al. 2022

JAFMDC

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“…But it also depends on patient factors such as general health, age, BMI, and comorbidities, i.e., topical (infection or hydronephrosis) and general (hypertension, diabetes mellitus, etc.) [11].…”

Section: Discussionmentioning

confidence: 99%

“…This led to the emergence of numerous nephrolithometric scoring systems such as the nephrolithometric nomogram [9] and the Seoul Renal Stone Complexity Score [10] based on preoperative data like stone size, stone site, renal anatomy, and a patients’ general condition to predict surgical outcome [11]. All have been found to have similar predictive accuracy for stone-free rate (SFR) [12].…”

Section: Introductionmentioning

confidence: 99%

Guy’s Stone Score as a Predictor for Stone-Free Rate and Complications in Percutaneous Nephrolithotomy: A Single-Center Report from a Stone Belt Country

Rashid

Khalid

Friad³

et al. 2020

Urol Int

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Objectives: To evaluate Guy's Stone Score (GSS) as a grading system for the complexity of renal calculi before percutaneous nephrolithotomy (PCNL) and as a predictor for stonefree rate (SFR) and potential complications in the setting of a developing country with many cases of advanced complex stone disease. Patients and Methods: We performed a prospective study on 115 patients with renal stones who had PCNL between August 2017 and October 2018. Stone complexity was classified according to GSS using preoperative imaging. The rates of perioperative complications were assessed using the Clavien grading system, and the SFR was assessed in the 3rd postoperative week by abdominal X-ray and renal ultrasound. The χ 2 and one-way ANOVA tests were used for statistical analysis. A p value ≤0.05 was considered significant. Results: The study included 115 patients (77 males) with a mean age of 50.2 (±13.3) years. Cases were classified according to GSS into 4 grades; there were 24 (20.9%) grade I, 48 (41.7%) grade II, 25 (21.7%) grade III, and 18 (15.7%) grade IV cases. There was a significant inverse correlation between GSS grade and SFR (p < 0.001). The rate of complications using the Clavien grading system were significantly higher in GSS grades III and IV (p = 0.002). So were the rates of blood transfusion, the need for > 1 access tract, and the duration of hospitalization. Conclusion: GSS is a simple and easily reproducible system to classify the complexity of renal stones. In our setting, it also proved an excellent tool to predict SFR, perioperative complications, and associated ancillary procedures. Ultimately, it can help surgeons and, above all, patients to make a more informed decision about their surgery.

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Comparison of S.T.O.N.E. Score and Guy Score in Predicting Stone Free Rates of Percutaneous Nephrolithotomy Procedures in the Soetomo General Hospital

Sanjaya¹,

Soebadi²,

Djojodimedjo³

et al. 2021

juri

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Objective: To determine the effectiveness of Modified Guy's Stone Score (GSS) and S.T.O.N.E score (SS) as predictors of stone free rates in patients undergoing PCNL. Material & Methods: The design of this study was a prospective observational analytic. Samples were patients with kidney stones who came to the Urology Polyclinic of Soetomo0 General Hospital Surabaya, which was planned to undergo PCNL surgery, patients who met the inclusion criteria will have a CT stonographic examination then counted for the S.T.O.N.E score and Modified Guy's Stone Score before the PCNL procedure. Postoperative stone size evaluation used KUB X-ray (BOF) to assess Stone Free Rate (SFR). Results: In the ETA statistical test there was a strong relationship between GSS and SFR with a relationship strength value of 0.609, the direction of the relationship between these two variables was positive. This means that the greater the GSS, the less likely the SFR could be achieved. The relationship between these two variables was significant with p= 0.05. While between SS and SFR with a relationship strength value of 0.55, the strength of the relationship in these two variables was positive which indicated the higher the SS, the less likely the occurrence of SFR. But both of them were not statistically significant with p= 0.228. Conclusion: Guy Stone Score (GSS) gives a better predictive value than the STONE score (SS) on the stone free rates in patients undergoing PCNL procedures.

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Utility of the Guy’s Stone Score in predicting different aspects of percutaneous nephrolithotomy

Cited by 6 publications

References 19 publications

Guy’s stone Scoring in Predicting Post operative Residual Stones

Guy’s stone Scoring in Predicting Post operative Residual Stones

Guy’s Stone Score as a Predictor for Stone-Free Rate and Complications in Percutaneous Nephrolithotomy: A Single-Center Report from a Stone Belt Country

Comparison of S.T.O.N.E. Score and Guy Score in Predicting Stone Free Rates of Percutaneous Nephrolithotomy Procedures in the Soetomo General Hospital

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