Objective: To compare the rate of stone recurrence in patients who underwent percuta-neous nephrolithotripsy (PNL) or open surgery because of nephrolithiasis.
Material and Methods: Between January 2006-May 2009 with diagnosis of nephrolithi-asis who underwent surgical treatment were re-viewed retrospectively. Totally 38 patients were included to study. Group 1 (n: 20) underwent open surgery, while Group 2 (n: 18) patients underwent PNL. The patients whom have non-opaque and residual stones after surgery were excluded from the study. By the controls urine analysis, plain radiography and non-contrast computer tomography were performed for screening stones. Patients’ age, gender, duration of hospital stay, preoperative stone burden, pos-toperative follow-up period and postoperative stone burden were recorded.
Results: The ratio of male/female in gro-up 1 and group 2 is 11/9 and 10/8 respectively. The mean age was 41,9±13,58 in group 1 and 36,22±14,3 years in group 2. Preoperative stone burden was 329,46±249,66mm2 in PNL gro-up while 390,72±200,12mm2 in open surgery group. Stone recurrence was detected in 61 % (11/18) of the patients treated with PNL, while only in 20 % (4/20) of the patients in the open surgery group. Postoperative control stone bur-den was significantly higher in group 2 than in group 1 (p=0.40).
Conclusion: PNL has been used more fre-quently for renal stone surgeries recently. The stone recurrence rate may increase after percu-taneous nephrolithotripsy due to insignificant residual fragments.
Key Words: PNL, Stone recurrence, urolit-hiasis, percutaneous nephrolithotripsy
Abstract
Objective: To compare the rate of stone recurrence in patients who underwent percuta-neous nephrolithotripsy (PNL) or open surgery because of nephrolithiasis.
Material and Methods: Between January 2006-May 2009 with diagnosis of nephrolithi-asis who underwent surgical treatment were re-viewed retrospectively. Totally 38 patients were included to study. Group 1 (n: 20) underwent open surgery, while Group 2 (n: 18) patients underwent PNL. The patients whom have non-opaque and residual stones after surgery were excluded from the study. By the controls urine analysis, plain radiography and non-contrast computer tomography were performed for screening stones. Patients’ age, gender, duration of hospital stay, preoperative stone burden, pos-toperative follow-up period and postoperative stone burden were recorded.
Results: The ratio of male/female in gro-up 1 and group 2 is 11/9 and 10/8 respectively. The mean age was 41,9±13,58 in group 1 and 36,22±14,3 years in group 2. Preoperative stone burden was 329,46±249,66mm2 in PNL gro-up while 390,72±200,12mm2 in open surgery group. Stone recurrence was detected in 61 % (11/18) of the patients treated with PNL, while only in 20 % (4/20) of the patients in the open surgery group. Postoperative control stone bur-den was significantly higher in group 2 than in group 1 (p=0.40).
Conclusion: PNL has been used more fre-quently for renal stone surgeries recently. The stone recurrence rate may increase after percu-taneous nephrolithotripsy due to insignificant residual fragments.
Key Words: PNL, Stone recurrence, urolit-hiasis, percutaneous nephrolithotripsy