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, 45 (4), 765-774

A Prospective Study Assessing Feasibility of Performing Percutaneous Nephrolithotomy in Chronic Kidney Disease Patients - What Factors Affect the Outcome?

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A Prospective Study Assessing Feasibility of Performing Percutaneous Nephrolithotomy in Chronic Kidney Disease Patients - What Factors Affect the Outcome?

Rohan Patel et al. Int Braz J Urol.

Abstract

Objectives: To primarily evaluate the functional outcomes of PCNL for bilateral renal calculi/calculi in solitary functioning kidney with Chronic Kidney Disease(CKD). To identify factors affecting the renal replacement therapy following PCNL.

Materials and methods: Patients with bilateral renal calculi/calculi in solitary kidney and CKD (eGFR<60/s.creatinine>2) and Good Performance Status [Eastern Cooperative Oncology Group (ECOG): 0-2] were included in the study.

Results: A total of 60 patients with CKD who had bilateral renal calculi/calculi in solitary functioning kidney underwent PCNL. At 6 months, eGFR improved or stabilized in 45 (75%) patients, while in 15 (25%) patients eGFR deteriorated. A total of 5 (14.28%) and 2 (25%) patients of CKD stage 4 and 5 respectively had improvement in eGFR as well as CKD stage. Fourteen (82.35%), 21 (60%), 3 (37.5%) patients of CKD stage 3, 4, 5 had improvement in eGFR but not signifi cant enough to cause stage migration. Again 3 (17.65%), 9 ( 40%) and 3 (37.5%) patients of CKD stage 3, 4, 5 had reduction in eGFR but not signifi cant enough to cause stage migration. None of the patients had worsening of CKD stage. Preoperative CKD stage and eGFR were compared with measurements made at the fi nal follow up visit (6 months).

Conclusion: Our results indicate that most patients of renal calculi with CKD show improvement or stabilization of renal function with aggressive stone removal. Improvement is more in patients who have mild to moderate CKD. Aggressive management of comorbidities, peri-operative UTI and complications may delay or avoid progression of CKD status in such patients.

Keywords: Kidney Diseases; Nephrolithotomy, Percutaneous; Urinary Tract Infections.

Conflict of interest statement

None declared.

Figures

Figure 1
Figure 1. Comparison of pre op and post op GFR and stage migration.

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