Comparison of supine and prone positions for percutaneous nephrolithotomy in treatment of staghorn stones
Urolithiasis, 2017•Springer
Introduction Percutaneous nephrolithotomy (PNL) is the primary treatment modality for
management of staghorn stones. PNL in supine position has important advantages over
prone positon. However, studies comparing prone and supine positions for PNL in staghorn
stone patients have conflicting results, and the aim of the current study was to compare
prone and supine positions for PNL in staghorn stone cases. Patients and methods Data of
patients underwent PNL for staghorn stones in supine or prone position by a single urologist …
management of staghorn stones. PNL in supine position has important advantages over
prone positon. However, studies comparing prone and supine positions for PNL in staghorn
stone patients have conflicting results, and the aim of the current study was to compare
prone and supine positions for PNL in staghorn stone cases. Patients and methods Data of
patients underwent PNL for staghorn stones in supine or prone position by a single urologist …
Introduction
Percutaneous nephrolithotomy (PNL) is the primary treatment modality for management of staghorn stones. PNL in supine position has important advantages over prone positon. However, studies comparing prone and supine positions for PNL in staghorn stone patients have conflicting results, and the aim of the current study was to compare prone and supine positions for PNL in staghorn stone cases.
Patients and methods
Data of patients underwent PNL for staghorn stones in supine or prone position by a single urologist were collected prospectively. The supine and prone position groups were compared for stone free rate (SFR) and complication rates. All patients were evaluated with NCCT for evaluation of SFR. Chi-square test was used to compare categorical variables and Student t test was applied for continuous variables of the treatment groups.
Results
The groups were similar for demographic and stone-related characteristics. Multi-caliceal and intercostal access was more common in prone position. Operation duration was significantly shorter and hemoglobin drop was significantly less in supine group. SFR was 64.1 and 60.4% in the supine and prone groups, respectively (p = 0.72). Complication rates were similar in the two groups but Clavien III complications were observed in two patients in the prone group.
Conclusions
PNL in supine position is an effective treatment for management of staghorn stones. The need for multi-caliceal and intercostal puncture is less when combined with retrograde intrarenal surgery. PNL in supine position should be considered as primary treatment option in staghorn stone cases.
Springer
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