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The purpose of this study is to prospectively identify factors that predict the chance of pleural injury (detected clinically or on postoperative X-ray chest) during percutaneous nephrolithotomy (PCNL). All patients with renal/upper ureteric stones, undergoing PCNL between January 2013 and June 2014, were evaluated for pleural injury. An erect chest X-ray on inspiration was done within 6 h of PCNL. The patients were divided into Groups A and B depending on whether they developed or did not develop pleural injury. Patient-, stone-, renal-, and procedure-related factors were compared between the two groups. 332 patients with mean age 36.76 ± 15.01 years (range 4-80) and M:F of 172:160 fulfilled the inclusion criteria. Pleural complications occurred in 10 patients (3 %). Of 141 patients with supracostal punctures (59 had additional infracostal punctures), 4.2 % (n = 6) had pleural injury. Of 191 patients with only infracostal punctures, 4 developed pleural injuries (2 %). Patients in group A had significantly lower age (27.00 ± 11.18 vs. 37.06 ± 15.03, p = 0.03) and lower BMI (18.0 ± 1.90 vs. 21.12 ± 2.24 p = 0.002). Incidence of pleural injury was significantly higher (p = 0.001) on right side [4.0 % (7/172) vs. 1.8 %, 3/160)]. Incidence of pleural injury had no association with staghorn calculi, stone surface area (590.51 ± 313.88 for Group A vs. 593.02 ± 387.10 for Group B; p = 0.11), degree of hydronephrosis, and operative time (65.13 ± 19.45 for Group A vs. 72.21 ± 19.56 for Group B; p = 0.06). On multivariate analysis, only low BMI and mean age <27 years were associated with higher risk of pleural injury. Higher incidence of pleural injury was noted in patients with low BMI and younger age.
The purpose of this study is to prospectively identify factors that predict the chance of pleural injury (detected clinically or on postoperative X-ray chest) during percutaneous nephrolithotomy (PCNL). All patients with renal/upper ureteric stones, undergoing PCNL between January 2013 and June 2014, were evaluated for pleural injury. An erect chest X-ray on inspiration was done within 6 h of PCNL. The patients were divided into Groups A and B depending on whether they developed or did not develop pleural injury. Patient-, stone-, renal-, and procedure-related factors were compared between the two groups. 332 patients with mean age 36.76 ± 15.01 years (range 4-80) and M:F of 172:160 fulfilled the inclusion criteria. Pleural complications occurred in 10 patients (3 %). Of 141 patients with supracostal punctures (59 had additional infracostal punctures), 4.2 % (n = 6) had pleural injury. Of 191 patients with only infracostal punctures, 4 developed pleural injuries (2 %). Patients in group A had significantly lower age (27.00 ± 11.18 vs. 37.06 ± 15.03, p = 0.03) and lower BMI (18.0 ± 1.90 vs. 21.12 ± 2.24 p = 0.002). Incidence of pleural injury was significantly higher (p = 0.001) on right side [4.0 % (7/172) vs. 1.8 %, 3/160)]. Incidence of pleural injury had no association with staghorn calculi, stone surface area (590.51 ± 313.88 for Group A vs. 593.02 ± 387.10 for Group B; p = 0.11), degree of hydronephrosis, and operative time (65.13 ± 19.45 for Group A vs. 72.21 ± 19.56 for Group B; p = 0.06). On multivariate analysis, only low BMI and mean age <27 years were associated with higher risk of pleural injury. Higher incidence of pleural injury was noted in patients with low BMI and younger age.
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