Percutaneous Nephrolithotomy Among Patients with Renal Anomalies: Patient Characteristics and Outcomes; a Subgroup Analysis of the Clinical Research Office of the Endourological Society Global Percutaneous Nephrolithotomy Study
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Bibliographic record
Abstract
PURPOSE: This study compared the characteristics and outcomes of percutaneous nephrolithotomy (PCNL) in patients with and without renal malformations using the Clinical Research Office of the Endourological Society (CROES) PCNL Global Study database. PATIENTS AND METHODS: The CROES PCNL Global Study collected prospective data for consecutive patients who were treated with PCNL at centers around the world during 1 year. Patient characteristics, operative data, and outcomes of PCNL in patients with renal anomalies and those with normal kidneys were compared. RESULTS: Of 5542 patients whose renal anatomy was recorded, 202 (3.6%) patients had a renal malformation. The most frequent anomalies were horseshoe kidneys (1.8%) and malrotated kidneys (1.3%). The prone position was the most frequently used position for patients with renal anomalies as was upper pole puncture. PCNL achieved stone-free rates of 76.6% in patients with anomalous kidneys and 76.2% in those with normal kidneys. The frequency of complications was similar in the two groups. Median operative time was significantly longer (87 min vs 75 min, P=0.037), and access for PCNL was unsuccessful in significantly more patients (5% vs 1.7%, P=0.001) in whom renal anomalies were present. CONCLUSION: In patients undergoing PCNL, the presence of renal malformation is likely to extend operative time. Stone-free rates as well as incidence of complications after PCNL are similar irrespective of the presence of renal anomalies.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it