SynthesisWorld journal of urology2026
The predictive value of Mayo adhesive probability (MAP) score for perioperative outcomes in percutaneous nephrolithotomy (PCNL): a systematic review and meta-analysis.
Synthesis in World journal of urology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
objectiveThis systematic review and meta-analysis aims to evaluate the association between the preoperative Mayo Adhesive Probability (MAP) score and key perioperative outcomes in patients undergoing percutaneous nephrolithotomy (PCNL).
methodsA systematic literature search was conducted across PubMed, Embase, Cochrane Library, and Web of Science from inception until October 2025 for studies comparing PCNL outcomes between patients with low (MAP < 3) and high (MAP ≥ 3) MAP scores. The primary outcome was postoperative fever (> 38 °C within 48 h). Secondary outcomes included hemoglobin (Hb) drop (as a continuous measure and as a binary outcome of ≥ 2 g/dL), operative time, and hospital stay. Meta-analyses followed a pre-specified analysis plan, utilizing random-effects models for outcomes with substantial heterogeneity (I2 > 50%) and fixed-effect models otherwise. The certainty of evidence was graded using the GRADE approach.
resultsSix retrospective cohort studies (n = 1,364 patients) were included. The pooled analysis under the random-effects model showed no statistically significant association between a high MAP score (≥ 3) and the risk of postoperative fever (RR: 2.716, 95% CI: 0.738–9.997) or a significant Hb drop of > 2 g/dL (RR: 1.530, 95% CI: 0.789–3.083). Similarly, no significant differences were found for continuous Hb drop (SMD: 0.379, 95% CI: − 0.836–1.593), operative time (SMD: 0.154, 95% CI: − 0.003–0.312), or length of hospital stay (SMD: 0.137, 95% CI: − 0.076–0.350). However, considerable heterogeneity was observed for fever and Hb drop outcomes (I2 > 80%). The certainty of evidence was rated as low for fever and Hb drop, and moderate for operative time and hospital stay.
conclusionThis meta-analysis does not confirm a statistically significant association between a high MAP score and adverse perioperative outcomes in PCNL when accounting for between-study heterogeneity. The observed trends and substantial heterogeneity underscore the need for cautious interpretation and highlight the necessity for standardized, high-quality prospective studies to definitively establish the role of the MAP score in PCNL preoperative planning.
Indexed as
Identifiers
41636854What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.