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In children with a first Escherichia coli-induced febrile urinary tract infection (fUTI), routine voiding cytourethrography (VCUG) is not recommended for detecting vesicoureteral reflux (VUR). Meanwhile, the sensitivity of renal and bladder ultrasound (RBUS) for detecting VUR is insufficient. Aiming to implement VCUG properly for children with a first E. coli-induced fUTI, we attempted to construct a predictive scoring system for the early screening of VUR.This study enrolled patients aged2 years of age hospitalized for their first E. coli-induced fUTI during the period when VCUG was implemented for all patients (2007-14, non-selective group [n = 111]) and only for those with VUR-suspected RBUS findings, bacteremia or acute focal bacterial nephritis (2016-19, selective group [n = 102]). We evaluated the accuracy of the current criteria and the VUR predictive score constructed using data from the non-selective group.In the non-selective group, 32 patients had VUR (29%). In the selective group, 20 of 45 VCUG-tested patients had VUR (44%). Among 57 patients not undergoing VCUG in the selective group, 8 had a recurrence of fUTI, 3 of whom were diagnosed with VUR. In the non-selective group, 9 patients with VUR did not fulfill the current criteria and the VUR predictive score consisting of young age, female sex, prolonged fever, hypoproteinemia, hyponatremia and hyperglycemia, showed higher sensitivity, specificity than the current criteria.The current imaging/bacteriological criteria were ineffective in screening for VUR in patients with their first E. coli-induced fUTI. The VUR predictive score can be an accurate indicator for implementing VCUG.

Henoch-Schönlein purpura nephritis often resolves spontaneously, without treatment, making decisions regarding therapeutic interventions difficult.Fifty-four patients who were diagnosed as having Henoch-Schönlein purpura nephritis between April 2004 and March 2018, and developed hematuria and/or proteinuria, were studied retrospectively. The observation period ended at the disappearance of hematuria or proteinuria, or the last observation date before December 2019 for each patient. Twenty-four of the patients received no treatment (Group A), 19 underwent renin-angiotensin-aldosterone system inhibitors only (B), 4 experienced steroid pulse therapy and combination therapy only (C) and the remaining 7 received steroid pulse therapy and combination therapy following renin-angiotensin-aldosterone system inhibitors (C). Clinical characteristics were examined according to the treatment method. Survival analysis for persistent urinary abnormalities was performed according to treatment modality, with multiple treatment records created per subject, if necessary.The highest urine protein/creatinine levels were significantly higher in groups B and C than in group A. The lowest estimated glomerular filtration rate was not significantly different among the three groups. In groups A and B, proteinuria resolved in90% of patients. Survival analysis showed that steroid pulse therapy and combination therapy was not related to the better resolution of hematuria or proteinuria than renin-angiotensin-aldosterone system inhibitors.Several patients with Henoch-Schönlein purpura nephritis went into remission either without treatment or with renin-angiotensin-aldosterone system inhibitors alone. The treatment plan for patients with Henoch-Schönlein purpura nephritis needs to be determined carefully.

Several maternal chronic diseases have been reported as risk factors for congenital anomalies of the kidney and urinary tract (CAKUT) in offspring. However, these investigations used case-control designs, and cases with isolated genitourinary CAKUT were not distinguished from cases in which CAKUT were present with extrarenal congenital anomalies (complicated CAKUT). We examined the association of maternal diseases with isolated and complicated CAKUT in offspring using data from a prospective cohort study.A nationwide prospective birth cohort study.100,239 children enrolled in the Japan Environment and Children's Study between January 2011 and March 2014 at 15 research centers. Physicians' diagnoses in mothers and children were collected from medical record transcripts and questionnaires.Medical histories of maternal noncommunicable diseases, including obesity, hypertension, diabetes mellitus, kidney disease, hyperthyroidism, hypothyroidism, psychiatric disease, epilepsy, cancer, and autoimmune disease.CAKUT diagnosed during the first 3 years of life, classified as isolated or complicated.Multivariable Poisson regression with generalized estimating equations accounting for clustering by clinical center.Among the 100,239 children, 560 (0.6%) had CAKUT, comprising 454 (81%) isolated and 106 (19%) complicated forms. The risk of isolated CAKUT was increased in children of mothers who experienced kidney disease (adjusted risk ratio [RR], 1.80 [95% CI, 1.12-2.91]) or cancer (RR, 2.11 [95% CI, 1.15-3.86]). Furthermore, the risk of complicated CAKUT was increased in children of mothers with diabetes mellitus (RR, 3.04 [95% CI, 1.64-5.61]).Lack of standardization or prespecification of clinical definitions, diagnostic criteria, measurements, and testing. Genetic testing was not performed.Isolated CAKUTs and complicated CAKUTs were associated with different maternal diseases. The results may inform clinical management of pregnancy and highlight potential differences in the genesis of isolated and complicated forms of CAKUT.

Background Carbapenem-resistant gram-negative bacilli (CRGNB) are increasingly reported around the world as a cause of serious infections. However, the epidemiology and clinical course of patients with CRGNB in Japan is not well understood. Methods We prospectively collected CR cases from 4/2019 to 9/2020 in Multi-Drug Resistant organisms clinical research network (MDRnet) consisting of 5 tertiary care facilities in Japan. We looked for all CRGNB, and all unique patients with CR Enterobacterales, CR nonfermenting gram-negative bacilli (NFGNB) and CR Aeromonas sp. isolation were included. Carbapenem resistance was tested by agar dilution method and defined based on the CLSI criteria for each species. Infections were determined by NHSN protocols. Results In total, 156 patients (30 Enterobacterales, 119 NFGNB, 7 Aeromonas spp.) were included (11 Enterobacter spp., 11 Klebsiella spp., 86 Pseudomonas aeruginosa, 29 Stenotrophomonas maltophilia, 7 Aeromonas spp.). Acinetobacter sp. was not detected. Isolation sites were sputum (n = 12) and urine (n = 7) in Enterobacterales, sputum (n = 62) and blood (n = 18) in NFGNB, and blood (n = 6) in Aeromonas spp. The median age and male ratio of the patients were 68 years [IQR: 53-74] and 19 (63.3%) in Enterobacterales, 72 years [IQR: 60-79] and 70 (58.8%) in NFGNB and 78 years [IQR: 54-83] and 2 (28.6%) in Aeromonas spp. Ten (33.3%) patients with Enterobacterales, 55 (46.2%) patients with NFGNB, and 6 (85.7%) patients with Aeromonas spp. were infected cases. The others were considered as colonized. There were no patients with ICU stay or intubation in Enterobacterales, while 5 (4.2%) and 4 (3.4%) patients were in ICU and intubated in NFGNB, and 2 patients were in ICU and intubated in Aeromonas spp., respectively. All-cause 30-day mortality rates were 10% in Enterobacterales, 16.8 % in NFGNB and 28.6% in Aeromonas spp. In the infected patients, 3 patients (30%) with Enterobacterales, 12 patients (21.8%) with NFGNB and 1 patient (16.7%) with Aeromonas spp. died within 30 days after isolation. Flow diagram outlining the characteristics of the patients and species in this study. Kaplan-Meier survival curves of patients with carbapenem resistant Enterobacterales Kaplan-Meier survival curves of patients with carbapenem resistant nonfermenting gram-negative bacilli Conclusion Mortality rates were high in infected cases of CR Enterobacterales, CR NFGNB and CR Aeromonas spp. Carbapenem-resistant Acinetobacter spp. was not detected, which differed from the CR epidemiology in Europe, the United States, and other Asian countries. Disclosures Sho Saito, n/a, Shionogi (Grant/Research Support) David van Duin, MD, PhD, Entasis (Advisor or Review Panel member)genentech (Advisor or Review Panel member)Karius (Advisor or Review Panel member)Merck (Grant/Research Support, Advisor or Review Panel member)Pfizer (Consultant, Advisor or Review Panel member)Qpex (Advisor or Review Panel member)Shionogi (Grant/Research Support, Scientific Research Study Investigator, Advisor or Review Panel member)Utility (Advisor or Review Panel member) Yohei Doi, MD, PhD, AstraZeneca (Speaker's Bureau)bioMerieux (Consultant)FujiFilm (Advisor or Review Panel member, Speaker's Bureau)Gilead (Consultant)GSK (Consultant)Meiji (Consultant)MSD (Consultant)Shionogi (Consultant) Yohei Doi, MD, PhD, Astellas (Individual(s) Involved: Self): Grant/Research Support; AstraZeneca (Individual(s) Involved: Self): Speakers' bureau; bioMerieux (Individual(s) Involved: Self): Consultant, Speakers' bureau; Chugai (Individual(s) Involved: Self): Consultant; Entasis (Individual(s) Involved: Self): Consultant; FujiFilm (Individual(s) Involved: Self): Advisor or Review Panel member; Gilead (Individual(s) Involved: Self): Consultant; GSK (Individual(s) Involved: Self): Consultant; Kanto Chemical (Individual(s) Involved: Self): Grant/Research Support; MSD (Individual(s) Involved: Self): Speaking Fee; Pfizer (Individual(s) Involved: Self): Grant/Research Support; Shionogi (Individual(s) Involved: Self): Grant/Research Support, Speakers' bureau; Teijin Healthcare (Individual(s) Involved: Self): Speakers' bureau; VenatoRx (Individual(s) Involved: Self): Consultant