Predictive factors of stone-free rate and complications in patients undergoing minimally invasive percutaneous nephrolithotomy under local infiltration anesthesia
Tóm tắt
To evaluate predictive factors affecting the stone-free rates (SFR) and complications of minimally invasive percutaneous nephrolithotomy (MPCNL) under local infiltration anesthesia (LIA) A retrospective analysis was conducted on 976 consecutive patients who underwent MPCNL under LIA from January 2015 to June 2018. Postoperative complications were classified according to modified Clavien classification system. Univariate and multivariate logistic regression analyses were used to determine factors affecting SFR and complications. The pain was acceptable with postoperative visual analog scale (VAS) scores being 3.58, 2.99, 2.25, and 2.07 after 0, 6, 24, and 48 h, respectively. The SFR after primary MPCNL reached 85.7%. Postoperative complications were recorded in 77 patients (7.9%). In the univariate logistic analysis, larger stone size, staghorn stone, and multiple calyxes were significantly associated with lower SFR. The higher American Society of Anesthesiologists (ASA) score, staghorn stone, positive urine culture, multiple tracts, and longer operation time were associated with occurrence of complications. However, hydronephrosis was associated with lower complication rate. Multivariate analysis indicated that larger stone size (P < 0.001) and staghorn stone (P < 0.001) were associated with lower SFR, while development of complications was independently influenced by higher ASA score (P = 0.002), multiple tract (P = 0.004), and staghorn stone (P = 0.028). MPCNL can be safely and effectively performed under LIA. Stone size and staghorn stone are factors associated with SFR while ASA score, multiple tracts, and staghorn stone are associated with the development of complications. For the first time, we developed a model to predict the SFR and complications in MPCNL under LIA.
Tài liệu tham khảo
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