ObjectivePercutaneous nephrolithotomy (PCNL) is commonly used in the management of large renal stones. Postoperative infections are one of the most common complications of this procedure. The present study is to determine and assess the factors that may increase the risk to develop fever and urinary sepsis after PCNL.MethodsA total of 60 patients (38 males and 22 females) with a mean age of 40.25 years enrolled in this study in Sulaimania Teaching Hospital. Patients had renal stone disease need operation with different socioeconomic status, body mass index and different type and size of stones were included in this study. Patients with preoperative positive urine culture and sensitivity were excluded. Preoperative investigations done for all patients. All Patients received prophylactic antibiotic gentamicin intravenously at the induction of anaesthesia. Renal pelvis urine sample were taken from all patients after puncturing the pelvicalyceal system and send for culture and sensitivity. Patients were monitored closely in the postoperative period for the development of fever and sepsis.ResultsMean duration of the operations was 77.08 min ranged 40–120 min. All patients had postoperative nephrostomy tube. Seventeen (28.33%) patients developed post PCNL fever and the statistically significant factors for post PCNL fever were diabetes mellitus (DM) (p = 0.001), stone burden (p = 0.001), number of the stones (p < 0.001), degree of hydronephrosis (p = 0.001), duration of the operation (p < 0.001), residual stones (p = 0.001) and number of tracts (p = 0.038). Three (5.00%) patients developed post PCNL sepsis, and the statistically significant risk factors for post PCNL sepsis were duration of the operation (p = 0.013) and intraoperative blood loss, postoperative drop in haemoglobin (HB) level (p = 0.046).ConclusionDM, staghorn stones, degree of hydronephrosis, duration of the operation and number of tracts are risk factors for post PCNL fever, while number of stones, intraoperative blood loss, duration of the operation and residual stones are risk factors for post PCNL sepsis.

Purpose: To evaluate the efficacy and safety of Tranexamic acid in reducing blood loss during PCNL. Materials and Methods: A total of 50 patients who underwent unilateral Percutaneous Nephrolithotomy from March 2017 to November 2017 were randomized into 2 equal groups; group (A) who received 1 gm (10 cc) of tranexamic acid ampule on call to surgery and group (B) who received (10 cc) normal saline. The Patients clinical data were collected and recorded in Microsoft Excel 2016 and analyzed using Statistical Package for the Social Science (SPSS) version 20 software program. Results: Fifty patients were included in the study: (33 males and 17 female). The mean age in group A patients was (48.12 ± 13.58) years, and in group B was (48.88 ± 16.17) with P value = 0.858. In group A the number of males was 16 (64%), and female was 9 (36%), and in group B male was 17 (68%) and female was 8 (34%). Mean body mass index (BMI) in group A was (28.58 ± 4.51) and in group B was (26.72 ± 3.71), with P value = 0.119 which is statistically not significant. The mean total blood loss in milliliters in group A was (73.80 ± 60.1), while in group B it was (117.24 ± 87.9) which is statistically significant with P-Value = 0.047. The mean hemoglobin drop in group A was (0.45 ± 0.35 g/dl) while in group B was (1.00 ± 0.46 g/dl), which is statistically significant with P value = 0.0001. The mean operative time was (48.4 ± 17) minute in group A, while it was (62.4 ± 15) in group B, with P-Value = 0.005, which is statistically was significant. Post-operative hematuria in group A; 20 (80%) patients had mild hematuria, 3 (12%) patients had moderate hematuria and 2 patients (8%) had no hematuria. In group B; 18 (72%) patients had mild hematuria, 6 (24%) patients had moderate hematuria and one patient (4%) had no hematuria, which is statistically not significant with P-Value = 0.487 (Table 2). One patient (4%) had intra operative bleeding in group A, in group B two patients (8%) had bleeding with P value of 0.

Objectives: To evaluate the safety and efficacy of percutaneous mini-nephrolithotomy (mini-PCNL) in children with complex staghorn stones. Patients and Methods: We analyzed prospectively data of 28 children undergoing pediatric mini-PCNL during a period of 18 months. Stone complexity was defined according to the validated Guy’s stone score (GSS). Our patients were GSS III and IV. All PCNL procedures were performed in the prone position, under fluoroscopic guidance, and in the same standardized fashion with F12 and F17 mini-nephroscopes. Results: Eleven children were boys (total n = 28). Mean age was 7.25 ± 3.27 (2–14) years. Mean stone burden was 36.89 ± 8.002 (30–60) mm. GSS was in 57% grade III and in 43% grade IV. The initial stone-free rate was 78%, which increased to 89% after few ancillary procedures. Seventeen percent of children had major complications (1 hydrothorax, 4 blood transfusions). On statistical analysis, stone clearance rates were found inversely dependent on stone complexity (GSS; p < 0.025). Stone burden, number of tracts, and procedure time were associated with stone complexity (p < 0.000). In turn, stone complexity (p < 0.015) and the number of tracts (p < 0.049) were significantly associated with complications. Conclusion: Mini-PCNL is effective and safe for treating complex renal stones in pediatric patients. Complication rates are acceptable and predictably stable on comparison with the literature.

Several preoperative factors are assessed for the evaluation of operative time and fragmentation efficacy during retrograde intrarenal surgery. Due to limited energy capabilities, stone density is regarded as an important factor contributing to procedural time. This study aimed to evaluate the effect of stone density on the total laser time (TLT) in lithotripsy. A total of 52 patients who underwent flexible ureteroscopy (fURS) using the Cyber Ho 60 holmium laser system (Quanta System) from October 2017 to November 2020 were prospectively analyzed. These patients were divided into groups according to their stone attenuation values (Hounsfield units [HU]) and were followed up for 3 months to determine the success of stone clearance. Differences in the TLT, patient demographics, stone characteristics, intraoperative maneuvers, and complications were analyzed. The mean stone size and density were 14.44 mm and 1043 HU, respectively. Furthermore, the mean TLT was 26.58 min, whereas the mean operative time was 41.44 min. The TLT did not significantly differ between stones with attenuation > 1000 HU and those with attenuation < 1000 HU (p = 0.486). Stones measuring > 13 mm in size required considerably longer TLT than their smaller counterparts (p = 0.008). In conclusion, in the era of rapid laser technology and instrumental developments, our findings suggest that stone density has no value on the outcomes of fURS, including the TLT, stone-free rate, and overall complications, whereas stone size significantly influences the TLT and stone-free rate.

Introduction: Besides extracorporeal shockwave lithotripsy, semi-rigid ureteroscopy (URS) has become an equal therapy of choice for the treatment of most distal ureteric stones. Before the wide availability of laser lithotripsy as a tool for stone fragmentation, pneumatic lithotripsy was, and still is, widely used. In a country like Iraq, availability and affordability are the huge questions asked. Besides the capital investment for a laser machine, the pneumatic device is reusable, whereas the laser fibers are limited in their reusability. This makes pneumatic lithotripsy a more cost-effective option, at least in our setting. The question remains whether both options, compared in our setting with our limited resources, are equally effective and beneficial to our patients. Patients and Methods: Fifty patients were included in our prospective study who underwent URS for the treatment of a distal ureteric stone. Half each (n = 25) underwent pneumatic (group A) or laser lithotripsy (group B). Inclusion criteria were a single distal ureteric stone measuring 7-20 mm in largest diameter, no anatomical abnormality, age >18 years, and an unsuccessful attempt of medical expulsion therapy. Patients with signs of urinary infection and pregnant women were excluded. All patients were operated upon under spinal anesthesia. Data recorded included operation time, stone size, type of scope and lithotripter, complications, hospital stay, and stone-free rate. Results: Both groups did not show statistically significant differences in patient demography, stone size, operation time, complications, and stone-free rates (p > 0.05). Conclusion: Both pneumatic and Ho:YAG laser lithotripsy are equally effective and safe in treating distal ureteric stones in our setting. If the cost and availability of laser treatment is an issue, pneumatic lithotripsy is a viable and more cost-effective option.