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The aim of this study was to evaluate the fluctuation of haemoglobin value after performing percutaneous nephrolithotomy (PCNL) in the treatment of kidney stones. We conducted a retrospective study and we included 327 patients who underwent PCNL for renal lithiasis. We evaluated the risk factors for bleeding: location of stones, complexity of lithiasis, length of postoperative hospitalization days, variation of post-operative laboratory constants (haemoglobin, haematocrit). Patients were divided into two age groups: group A (patients under 70 years old) and group B (patients over 70 years). Gender distribution was: 171 female and 156 male. In most of the cases, the stones were located in the renal pelvis (133 cases), multiple lithiasis (105 cases) and staghorn stones (48 cases). There was no statistical difference between the patient�s groups concerning the decrease of post-operative Hgb concentration and complexity of the litiasis, p = 0.10. The average length of post-operative hospitalisation was 3.91 +/- 1.78 SD days in patients who did not have significant hemorrhage and 6.40 +/- 2.35 SD days in patients with intra- and post-operative haemorrhage. The postoperative Hgb levels correlated with post-operative days of hospitalization in elderly patients (rr = -0.44, p = 0.0001). Stone complexity, the size, number or localization of the stones, were not risk factors for the decrease of haemoglobin level after PCNL. Decreased postoperative haemoglobin values can led to increased number of hospitalization days.

Urinary incontinence is a socio-economic problem with a major impact on quality of life. Although there are multiple non-surgical and drug solutions, surgical treatment remains the most effective method for stress urinary incontinence. Placement of transobturator polypropylene tape is a safe method with minimal intraoperative and postoperative complications. This study had a minimal rate of complications at a one-year follow-up; the biggest problem is represented by de novo overactive bladder (20.26%) that responded successfully to conservative treatment in most cases. The surgical treatment cure rate was 97.8%. TOT is a safer method with less intraoperative complications than TVT, at the same time the success rate is comparable to TVT.