Antegrade Percutaneous Retrieval of Upward Migrated Double-J Stent in Very Small Size Pediatric Patients Under Ultrasonic Guide.

Purpose: To evaluate the safety of antegrade percutaneous retrieval migrated ureteral stent in very small size pediatric patients with ultramini instruments under ultrasonography guide. Materials and Methods: A total number of 10 out of 115 patients who were referred to our center with upward migrated Double-J (DJ) were candidates for antegrade approach from 2017 to 2020. The pyelocalyceal system was punctured in a prone position by using an 18-gauge disposable needle with Chiba tip and visualization of the upper tract by 3.5 MHz ultrasonic guidance. Then 0.038-inch J tipped guide wire was passed through the needle and the tract was dilated up to 6F under ultrasonographic guide. The 8F access sheath was positioned over the 6F dilator. The semirigid 6F ureteroscope was introduced through the sheath and DJ was removed with a grasper. Results: The mean age was 11.4 ± 5.48 months. The mean time from the previous surgery to DJ removal procedure was 6.4 ± 0.84 weeks. The mean operation time was 11.7 ± 1.76 minutes. All the patients were discharged from the hospital within the 1st day. There were no serious complications (grade 3, 4, or 5) according to Clavien-Dindo classification. Conclusion: The antegrade retrieval of upward migrated DJ with ultramini instrument under ultrasonographic guidance in failed cases of retrograde approach is a safe and effective approach in very small size pediatric patients.

Associations of MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) Polymorphisms with Susceptibility to Bladder Cancer: A Systematic Review and Meta-Analysis.

The effects of the MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) polymorphisms on bladder cancer risk have been evaluated in some studies. However, the results were conflicting and ambiguous. Therefore, we aimed to perform a comprehensive meta-analysis to investigate the association of these polymorphisms with risk of bladder cancer from all eligible case-control studies. PubMed, Web of science, Scopus, SID, CNKI and SciELO databases were searched to identify all relevant studies published up to 1 January, 2021. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to estimate the strength of associations. A total of 20 case-control studies including 11 studies with 3463 cases and 3927 controls on MTHFR rs1801133 (677C>T) and 9 studies with 3177 cases and 3502 controls on rs180113 (1298A>C) polymorphism were selected. Pooled data revealed that the MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) polymorphisms were not associated with risk bladder cancer in overall. Stratified analysis by ethnicity revealed that the MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) polymorphisms were associated with bladder cancer risk in Asians, but not in Caucasians. There was no publication bias. The current meta-analysis revealed that the MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) polymorphisms were not risk factor for development of bladder cancer globally. However, large sample size, well-designed, and population-based studies should be performed to verify the association of the MTHFR polymorphisms with bladder cancer risk.

Transperitoneal Laparoscopic Pyelolithotomy versus Percutaneous Nephrolithotomy for Treating the Patients with Staghorn Kidney Stones: A Randomized Clinical Trial.

PURPOSE: To compare the performance and outcomes of laparoscopic pyelolithotomy (LPL) versus percutaneous nephrolithotomy (PCNL) in the management of staghorn kidney stones. MATERIALS AND METHODS: This study was a parallel-group randomized clinical trial study carried out on 68 patients with staghorn stones (one single piece or maximally two-piece stones with large extra renal part) over 18 years referred to Labbafinejhad Hospital. Patients were randomly divided on a ratio of 1:1 into two groups of LPL and PCNL using random allocation software. The primary outcome was the stone free rate, which was evaluated with KUB, and ultrasonography. Secondary outcomes were duration of surgery, bleeding, fever, post-operative pain, length of hospital stay, and postoperative complications. RESULTS: The mean±SD age of patients in PCNL and LPL groups were 48.50 ± 13.33 years and 52.17 ± 15.74 years, respectively (P=.303). LPL was associated with a higher duration of surgery (196.55 ± 26.58 minutes versus 110.88 ± 34.82; P=.001). Hemoglobin drop in the PCNL group was higher than the LPL group (2.67 ± 2.61 g/dL versus -0.7912 ± 1.06 g/dL; P=.001). Stone free status was observed in 29 (85.3%) patients in the LPL group, which was significantly higher than the PCNL group (22 patients, 64.7%; P =.050). CONCLUSION: The results of this study indicate that LPL offers a higher stone free rate with less bleeding in patients with single particle or limited particles staghorn stones with extrarenal pelvis but is associated with a higher duration of operation. The application of LPL in patients with multiple stones carries a lower achievement and is not encouraged.

The Effects of Tranexamic Acid on Bleeding Control During and after Percutaneous Nephrolithotomy (PCNL): A Randomized Clinical Trial.

PURPOSE: Tranexamic acid is a fibrinolysis suppressor that is used for a variety of bleeding control procedures such as hematuria, surgery bleeding, and trauma caused bleeding. The advantages of using the tranexamic acid are bleeding control and less need for blood transfusion. MATERIALS AND METHODS: This double blind clinical trial was conducted on 108 patients in Imam Khomeni Hospital, Urmia, Iran 2013-14. The control and intervention groups consisted of 54 randomly selected participants each. The intervention group received 1gr of intravenous tranexamic acid with initiation of surgery and 500mg orally each 8hrs afterwards up to three days. The control group received placebo capsules containing starch of the same form. RESULTS: The mean term of hospitalization in the intervention group was significantly shorter than that of the control group (P<0.001). The difference between the two groups in terms of preoperative hemoglobin was not significant. However, the decrease in postoperative hemoglobin, intraoperative hemoglobin count in washing liquid, and hemoglobin count in the intervention group were significantly different from those of the control group (P<0.001). CONCLUSION: The findings showed that tranexamic acid decreased bleeding during PCNL and the need for blood transfusion. It also decreased the hospitalization term.

Evaluation of epidemiology, clinical features, prognosis, diagnosis and treatment outcomes of patients with COVID-19 in West Azerbaijan Province.

BACKGROUND: COVID-19 is considered a widespread concern in global public health. Diagnoses of COVID-19 in some cases are necessary because of severe prognosis. In this study, epidemiologies, clinical and demographic characteristics of patients with COVID-19 were studied in Taleghani Hospital, Urmia, Iran. METHODS: This descriptive-analytical cross-sectional study was carried out on 215 patients with COVID-19 during March and April 2020. Approved COVID-19 case was considered as a person with a positive respiratory sample performed by at least one of two RT-PCR methods or genetic sequencing. ANOVA repeated measure, independent t-test and logistic regression were done. A P < .05 was considered significant. RESULTS: The mean age of patients was 50.93 ± 17.92 years. Regarding gender, there were 91 females (42.3%) and 124 males (57.7%). The mean hospital stay, the temperature at admission, and onset of symptoms were 4.91 ± 3.68 days, 37.40 ± 0.96°C and 5.88 ± 4.80 days, respectively. Close contact with suspected people was found in 10.2% of patients. Additionally, 44 patients (20.5%) were smokers. Shortness of breath and cough were found in 62.8% and 49.3% of patients. Diabetes mellitus and hypertension were the most common comorbidities of patients. Regarding lung involvement, 33 patients (33%) were normal, most of the patients (n = 71) had 5%-25% involvement in their lung and a minority of patients (n = 13) had a severe condition of 50%-75% lung involvement. The association between smoking and mortality was tested using chi-square showing no significant difference (X2 :2.959, P = .085). There was no significant difference between AST, ALT, ALP, total, direct Bilirubin, lung involvement and suffering from fever (P > .05). High Spo2 can increase the chance of recovery by 24% with each unit reduction. Kidney involvement increases the chance of death by about 80% (95% CI: 0.104-0.013). The odds ratio of spo2 for recovery of COVID-19 was 1.24 (95% CI: 1.014-1.528; P = .037). Kaletra with odds ratio of 31.960 had the most highest effect on recovery following COVID-19 (P = .043). CONCLUSION: COVID-19 involves different organs of the body with different severity. In the meantime, smoking was not a risk factor for the virus or associated with severe manifestations of the disease. Patients with high creatinine and CPK, pulmonary involvement above 25%, and hypoxemia had a higher mortality rate. Increase of Spo2 by 1% can improve the patients by 24%. The results indicated that Kaletra had the most highest effect on improvement following COVID-19.

Laparoscopic Donor Nephrectomy Is a Safe Surgical Approach in Healthy Obese Kidney Donors: A 10-Year Single-Center Retrospective Study.

OBJECTIVES: A lack of donors continues to be a significant problem. Kidney donors with a body mass index ≥ 30 kg/m² are not suitable for laparoscopic donor nephrectomy; however, some studies have suggested that an obese donor could be an appropriate donor with similar surgical outcomes. Here, we report the results of our 10-year experience of laparoscopic donor nephrectomy, examining the effects of body mass index on the surgical results of laparoscopic donor nephrectomy. MATERIALS AND METHODS: We retrospectively reviewed medical records of patients who underwent laparoscopic donor nephrectomy at the Shahid Beheshti University Medical Science, Urology Center (Tehran, Iran) from 2005 to 2015. The collected information included pretransplant and posttransplant serum levels of hemoglobin and creatinine. We also collected data on surgical outcomes (operation time, cold and warm ischemia, need for blood transfusion, and conversion to open surgery, length of hospital stay, and complication rates) with respect to body mass index categories (≤ 24.9, 25-29.9, and ≥ 30 kg/m²). RESULTS: Of 1083 kidney donors, 732 donors had body mass index of ≤ 24.9 kg/m², 256 had body mass index between 25 and 29.9 kg/m², and 95 had body mass index of ≥ 30 kg/m². Differences among groups were not significant in terms of operation time (P = .558), warm or cold ischemic time (P = .829 and .951, respectively), blood transfusion (P = .873), and length of hospital stay (P = .850). CONCLUSIONS: The laparoscopic approach for donor nephrectomy is a safe and effective method in obese donors without significant postoperative complications.

Fragmented ureteral stent extraction by antegrade and retrograde access:using ureteroscope and nephroscope.

there are different complications of using ureteral stents in urology field, one of the challenging complications is stent fragmentation which is frequent in patients with missed and forgotten stents accompanying encrustation, presented case was 70- year-old female, left single kidney with stent fragmentation After TUL and stent insertion one year ago, because of retained fragments in kidney, ureter, and bladder, combined antegrade and retrograde approach was used for stent fragments extraction, for preventing stent related complications we should signify the importance of timely extraction of ureteral stents during inpatient and outpatient visits and using remembrance methods.

Effect of duration on hemodialysis on prevalence of Helicobacter pylori infection.

Digestive tract complications are common in hemodialysis (HD) patients, and Helicobacter pylori (H. pylori) is thought to play an important role in the pathogenesis of gastrointestinal mucosal lesions in these patients. Also, reports indicate that cytotoxin-associated gene A (CagA) is the major factor involved in the pathogenesis of H. pylori disease. However, many issues regarding H. pylori infection in HD patients are still unclear. In this cross-sectional study, we investigated the effect of duration on HD on the prevalence of H. pylori infection and its virulent CagA(+) strain. One-hundred and fifty-one HD patients who were referred to our university HD center were included in the study. There were 78 males and 73 females, with a mean age of 54.2 ± 14.6 years (range: 19-87 years). They were tested for serum anti-H. pylori IgG antibody by the enzyme-linked immunosorbent assay method. Also, anti-CagA IgG antibody was tested in H. pylori-infected patients. The study patients were categorized into two groups: short-term HD duration (STHD: ≤3 years) and long-term HD duration (LTHD: >3 years). The overall prevalence of antibodies to H. pylori and CagA were 65.6% (99/151) and 25.3% (25/99), respectively. The prevalence of H. pylori infection among the STHD and LTHD patients were 49/89 (55.10%) and 49/62 (79.0%), respectively; P <0.05. The prevalence of anti-CagA antibody in infected STHD and LTHD patients was 24.5% (12/49) and 26.5% (13/49), respectively; P >0.05. Our study suggests that the prevalence of H. pylori infection is higher in patients on LTHD. More investigations are needed regarding the clinical consequences of H. pylori infection in HD patients.

Seroprevalence of anti-Helicobacter pylori and anticytotoxin-associated gene A antibodies [corrected] according to ABO blood groups and rhesus status among hemodialysis patients.

INTRODUCTION: Correlation between Helicobacter pylori infection and blood group typing has been widely evaluated in both patients and healthy population. However, data addressing this correlation in hemodialysis patients are scarce. The aim of this study was to evaluate the prevalence of anti-Helicobacter pylori and anticytotoxin-associated gene A (anti-Cag A) antigen antibodies and their correlations with ABO blood groups and rhesus blood group status in hemodialysis patients. MATERIALS AND METHODS; In a cross-sectional study, serum samples of 151 hemodialysis patients were tested for anti-Helicobacter pylori IgG antibody. Anti-Cag A antibody (IgG antibody) was tested in Helicobacter pylori-positive patients. ABO blood groups typing and rhesus status were tested by hemagglutination test. RESULTS: Prevalence of anti-Helicobacter pylori and anti-Cag A antibodies in Helicobacter pylori-positive patients were 65.6% (99 of 151) and 25.3% (25 of 99), respectively. Prevalence of anti-Helicobacter pylori and anti-Cag A antibodies were 69.1% and 36.8% in patients with blood group A, 42.3% and 9.1% in blood group B, 75.0 % and zero in blood group AB, 69.4% and 23.3% in blood group O, 59.0% and 30.6% in rhesus-positive status and 89.7% and 11.5% in rhesus-negative status, respectively. There was a significant correlation between the presence of anti-Helicobacter pylori and anti-Cag A antibodies and rhesus status, but no significant relation between ABO blood groups and anti-Cag A antibodies were found. CONCLUSIONS: Rhesus status may have an impact on the presence of anti-Helicobacter pylori and anti-Cag A antibodies. More investigations to address this correlation are necessary.