Síndrome de disfunción orgánica múltiple progresiva en embarazo adolescente: reporte de caso clínico / Progressive multiple organ dysfunction syndrome in adolescent pregnancy: Case report

Introducción El embarazo adolescente es un proceso fisiológico, pero puede evolucionar con parto prematuro, patologías obstétricas o médicas graves, mortalidad o secuelas para madre e hijo/a. Nuestro objetivo es reportar el síndrome de disfunción orgánica múltiple progresiva secundario a pielonefritis y sepsis ocurrido durante el preparto, parto y puerperio de embarazo adolescente y sus secuelas. Caso clínico Adolescente de 14 años, con embarazo de 27 semanas de gestación controlado desde las 8 hasta 25 semanas. Ingresó de urgencia en unidad de alto riesgo obstétrico por signos de parto prematuro, pielonefritis e injuria renal aguda. Se inició tratamiento con cefazolina intravenosa y betametasona para maduración pulmonar, nifedipino oral y sulfato de magnesio para prevención del parto prematuro y protección neuronal fetal, evolucionando con hipotensión sostenida y shock séptico. A las 13 horas después del ingreso, fue trasladada a unidad de paciente crítico donde evolucionó con falla orgánica múltiple persistente y progresiva durante 28 días, afectando sucesivamente los sistemas cardiovascular, hematológico, respiratorio y gastrointestinal. Se trató con drogas vasoactivas, antibióticos, ventilación mecánica invasiva, ultrafiltración, hemodiálisis, drenaje pleural y colecistectomía. A las 24 horas de ingreso a cuidado intensivo, ocurrió el parto prematuro vaginal. La embarazada desarrolló enfermedad renal crónica etapa KDIGO 5 ( V) y se encuentra en espera de trasplante renal. Por su parte, la recién nacida prematura viva presentó asfixia neonatal severa, displasia broncopulmonar y encefalopatía hipóxico-isquémica. Conclusiones El embarazo adolescente complicado es una emergencia sanitaria. El diagnóstico y manejo oportuno de la pielonefritis, shock séptico y disfunción orgánica asociada a la sepsis pueden evitar mortalidad y secuelas permanentes materna y/o neonatal.

Introduction Adolescent pregnancy is a physiological process, but it can evolve with premature delivery, severe obstetric or clinical pathologies, mortality, or sequelae for mother and child. We aim to report the progressive multiple organ dysfunction syndrome secondary to pyelonephritis and sepsis during prepartum, delivery, and puerperium of adolescent pregnancy and its sequelae. Case report A 14-year-old adolescent with a pregnancy of 27 weeks of gestation controlled from 8 to 25 weeks. She was urgently admitted to the high-risk obstetric unit due to signs of preterm labor, pyelonephritis, and acute renal injury. Treatment was started with intravenous cefazolin and betamethasone for lung maturation, oral nifedipine, and magnesium sulfate to prevent preterm labor and fetal neuronal protection, evolving with sustained hypotension and septic shock. At 13 hours after admission, she was transferred to the intensive care unit, where she evolved with persistent and progressive multiple organ failure for 28 days, progressively affecting the cardiovascular, hematologic, respiratory, and gastrointestinal systems. She was treated with vasoactive drugs, antibiotics, invasive mechanical ventilation, ultrafiltration, hemodialysis, pleural drainage, and cholecystectomy. Twenty-four hours after admission to intensive care, preterm vaginal delivery occurred. She developed chronic kidney disease stage KDIGO 5 (Kidney Disease Improving Global Outcomes V) and is awaiting renal transplantation. On the other hand, the preterm newborn presented severe neonatal asphyxia, bronchopulmonary dysplasia, and hypoxic-ischemic encephalopathy. Conclusion Complicated adolescent pregnancy is a health emergency. Avoiding delays in the diagnosis and treatment of pyelonephritis, septic shock and the progressive multiple organ dysfunction syndrome can prevent mortality and permanent sequelae, both maternal and neonatal.

Emphysematous pyelonephritis in patient with hemophagocytic lymphohistiocytosis: A case report

Emphysematous pyelonephritis (EPN) and hemophagocytic lymphohistiocytosis (HLH) are rare, fatal illnesses. The presence of both at once in a patient is extremely rare. The number of reported cases of EPN is <800 cases worldwide to date. Contrarily, the prevalence of adults with HLH is estimated to be 1 in every 2000 adults admitted to a tertiary health center. This case report aims to present the case of a 45-year-old woman who was diagnosed with EPN with a history of HLH and was successfully treated with medication alone. In conclusion, the clinical manifestations of EPN are non-specific and need imaging modalities like computed tomography (CT) scans. Treating EPN is based on CT scan classification. Medical treatment was an option for these patients. There is no direct association between EPN and HLH; it is a challenging decision to treat patients with both.

Consenso para el tratamiento de la infección de vías urinarias altas durante la gestación / Consensus for the treatment of upper urinary tract infections during pregnancy

Objetivos: Generar recomendaciones informadas en la evidencia, a través de un consenso formal, orientadas al tratamiento de la infección de vías urinarias altas durante la gestación. Materiales y métodos: En el grupo desarrollador participaron expertos temáticos en microbiología, salud pública, medicina interna, infectología, obstetricia, medicina materno-fetal e infectología ginecobstétrica. También hicieron parte profesionales con entrenamiento en epidemiología clínica, búsqueda sistemática de la información, representantes de la Secretaría de Salud y la Asociación Bogotana de Obstetricia y Ginecología. Los participantes presentaron sus conflictos de interés. A partir de una pregunta clínica se realizó la graduación de los desenlaces y una búsqueda sistemática que abarcó las bases de datos Medline vía PubMed, Embase, Lilacs, Bireme. La pesquisa se amplió a repositorios institucionales y reportes de vigilancia de resistencia antimicrobiana, sin restricción de idioma o fecha, la búsqueda se actualizó el 1 de octubre de 2022. Se utilizó la metodología GRADE (Grading of Recommendations Assessment, Development and Evaluation) para valorar la calidad de la evidencia y establecer la fuerza de las recomendaciones. Finalmente, se utilizó la metodología RAND/ UCLA (Research and Development/University of California Los Angeles) para el consenso formal. Este documento fue revisado por pares académicos previo a su publicación. Resultados: El consenso formuló las siguientes recomendaciones. Recomendación 1. Se sugiere que el manejo inicial de la gestante con infección de vías urinarias (IVU) altas se realice de forma intrahospitalaria. Recomendación 2. Como primera opción, se sugiere que el tratamiento antimicrobiano empírico de la gestante con IVU altas se realice con el uso de cefalosporinas de segunda generación con el fin de mejorar la tasa de cura clínica y microbiológica. Recomendación 3. Como segunda opción, se sugiere que el tratamiento antimicrobiano empírico de la gestante con IVU altas en el segundo y tercer trimestre se realice con aminoglucósidos dado su balance riesgo-beneficio. Recomendación 4. Como tercera opción, se sugiere que el tratamiento antimicrobiano empírico de la gestante con IVU altas se realice con el uso de cefalosporinas de tercera generación, debido a que el riesgo de inducción de resistencia microbiana es alto con este grupo de antibióticos. Recomendación 5. Como primera opción, en mujeres gestantes con IVU altas y antecedente de infección por microorganismos con resistencia a cefalosporinas de tercera o cuarta generación se sugiere el uso de carbapenémicos. Recomendación 6. Como segunda opción, en gestantes con IVU altas y antecedente de infección por microorganismos con resistencia a cefalosporinas de tercera generación se sugiere el uso de aminoglucósidos o cefalosporinas de cuarta generación teniendo en cuenta el riesgo-beneficio. Recomendación 7. Como tercera opción, en gestantes con IVU altas y antecedente de infección por microorganismos con resistencia a cefalosporinas de tercera o cuarta generación se sugiere el uso de piperacilina/tazobactam. Recomendación 8. En gestantes con IVU altas se recomienda realizar urocultivo previo al inicio de tratamiento antimicrobiano empírico. Recomendación 9. En gestantes con IVU altas, cuando el urocultivo reporte resistencia al antimicrobiano iniciado de forma empírica, se sugiere modificar la terapia guiada por los resultados del antibiograma. Recomendación 10. En la gestante hospitalizada por IVU altas se sugiere realizar el cambio de terapia antimicrobiana a vía oral cuando la paciente tenga, al menos, 48 horas de modulación de respuesta inflamatoria sistémica y de los signos clínicos de infección, así como adecuada tolerancia a vía oral. Recomendación 11. En gestantes con IVU altas, sin complicaciones secundarias a la infección primaria, se recomienda que la terapia antibiótica se administre de 7 a 10 días. Conclusiones: se espera que este consenso colombiano de IVU altas reduzca la variabilidad en la práctica clínica. Se recomienda a los grupos de investigación en medicina materno fetal e infectología evaluar la implementación y efectividad de las recomendaciones emitidas.

Objectives: To generate evidence-based recommendations through formal consensus regarding the treatment of upper urinary tract infections during gestation. Materials and methods: Experts in microbiology, public health, internal medicine, infectious diseases, obstetrics, maternal fetal medicine and obstetric and gynecological infections participated in the consensus development group. The group also included professionals with training in clinical epidemiology, systematic data search, and representatives from the Health Secretariat and the Bogota Obstetrics and Gynecology Association. The participants disclosed their conf licts of interest. Starting with a clinical question, outcomes were graded and a systematic search was conducted in the Medline via PubMed, Embase, Lilacs, and Bireme databases. The search was expanded to include institutional repositories and antimicrobial resistance surveillance systems, with no language or date restrictions. The search was updated on October 1, 2022. The GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology was used to assess the quality of the evidence and determine the strength of the recommendations. Finally, the RAND/UCLA (Research and Development/University of California Los Angeles) methodology was applied for the formal consensus. This document was reviewed by academic peers before publication. Results: The following are the consensus recommendations. Recommendation 1. The initial management of pregnant women with upper urinary tract infections (UTIs) should be approached in a hospital setting. Recommendation 2. The use of second generation cephalosporins is the suggested first option for empirical antimicrobial management in pregnant women with upper UTI in order to improve the rates of clinical and microbiological cure. Recommendation 3. Because of the risk-benefit balance, the use of aminoglycosides is suggested as a second option for empirical antimicrobial treatment in pregnant women presenting with upper UTIs in the second and third trimester. Recommendation 4. The use of third-generation cephalosporins is suggested as the third option for empirical antimicrobial treatment in pregnant women with upper UTIs given that the risk of inducing microbial resistance is high with this group of antibiotics. Recommendation 5. The use of carbapenems is suggested as a first option in pregnant women with upper UTIs and a history of infections caused by microorganisms with resistance to third or fourth-generation cephalosporins. Recommendation 6. The use of aminoglycosides or fourth-generation cephalosporins is suggested as a second option in pregnant women with upper UTIs and a history of infection caused by microorganisms with resistance to third-generation cephalosporins, taking risk-benefit into account. Recommendation 7. The use of piperacillin/tazobactam is suggested as a third option in pregnant women with upper UTIs and a history of infection caused by microorganisms with resistance to third or fourth-generation cephalosporins. Recommendation 8. Getting a urine culture is recommended in pregnant women with upper UTIs before initiating empirical antimicrobial treatment. Recommendation 9. In pregnant women with upper UTIs, it is suggested to modify therapy in accordance with the results of the sensitivity test when the culture report shows resistance to the antimicrobial agent initiated empirically. Recommendation 10. In pregnant women hospitalized due to upper UTIs, it is suggested to switch to oral antimicrobial therapy after at least 48 hours of modulation of the systemic inflammatory response and the clinical signs of infection, and when tolerance to oral intake is adequate. Recommendation 11. In pregnant women with upper UTIs with no complications secondary to the primary infection, it is recommended to administer antibiotic therapy for a period of 7 to 10 days. Conclusions: It is expected that with this Colombian upper UTI consensus variability in clinical practice will be reduced. It is recommended that groups doing research in maternal fetal medicine assess the implementation and effectiveness of these recommendations.

Necessity of asymptomatic bacteriuria screening during pregnancy / 中华围产医学杂志

Asymptomatic bacteriuria (ASB) refers to the presence of one or more species of bacteria in an individual's urine without the symptoms of a urinary tract infection. Previous studies have shown that untreated ASB during pregnancy is associated with adverse pregnancy outcomes. Many international guidelines recommend a single screen-and-treat approach to ASB during pregnancy. Still, this approach has not been proven favorable to pregnancy outcomes in low-risk populations by recent studies. ASB screening is not a routine obstetric examination in clinical practice in China. Given this, this article will review the evidence of ASB screening during pregnancy and analyze the recommendations and existing problems in the guidelines from various academic organizations. Clinical studies should be carried out according to the situation in the region, and the basic risks and treatment benefits of ASB in pregnancy should be analyzed in combination with specific data to establish a proper screening and treatment plan for ASB during pregnancy. Screening for ASB is recommended for pregnant women with high-risk factors at this stage.

Clinical characteristics and risk factors of acute focal bacterial nephritis in children / 中华肾脏病杂志

Objective:To summarize and analyze the clinical features and risk factors of acute focal bacterial nephritis (AFBN) in children.Methods:It was a retrospective cohort study. The clinical data of patients diagnosed with upper urinary tract infection in Children's Hospital Affiliated to Capital Institute of Pediatrics from July 1, 2016 to July 31, 2021 were collected, and the patients all received abdominal enhanced CT examination. According to the imaging examination results, the patients were divided into AFBN group and acute pyelonephritis (APN) group, and the clinical manifestations, laboratory and imaging examination between the two groups were compared. Logistic regression model and receiver operating characteristic curve were used to analyze the risk factors of AFBN.Results:A total of 135 patients with upper urinary tract infection were enrolled in this study, with age of 2.5 (0.5, 3.7) years old, and 68 males (50.4%). There were 67 patients (49.6%) in AFBN group and 68 patients (50.4%) in APN group. There were statistically significant differences in the highest fever temperature, duration of fever after treatment, proportion of lower urinary tract irritation symptoms, proportion of urinary tract malformation or abnormality, white blood cell count, neutrophil count, procalcitonin, C-reactive protein, proportion of pyuria, urinary β2 microglobulin and proportion of using carbapenem antibiotics between the two groups (all P<0.05). Multivariate logistic regression analysis result showed that urinary tract malformation/abnormality ( OR=3.34, 95% CI 1.23-9.10) and leukocytosis ( OR=1.25, 95% CI 1.03-1.51) were the independent risk factors of AFBN. Conclusions:The children with urinary tract infection who have high peak fever, long duration, obvious increase of inflammatory indexes and urinary β2 microglobulin may suggest AFBN. Urinary tract malformation/abnormality and high white blood cells are risk factors of AFBN.

Histomorphological Analysis of Nephrectomy Specimens: Experience at a Tertiary Care Institute

Introduction: For a range of kidney abnormalities, including both neoplastic and nonneoplastic disorders, nephrectomy is a popular surgical treatment. We conducted this study to examine the range of lesions found in the nephrectomy specimens obtained and to ascertain the distribution of these lesions by age and sex. MaterialsandMethods: This study was conducted in the department of pathology, from 2017 to 2022. All nephrectomy specimens received during 5 years were included. Results: The spectrum of renal lesions observed in the study included both neoplastic (43.75%) and nonneoplastic (56.25%) conditions. Nineteen patients were males (59.37%) and 13 were females (40.62%) (M: F = 1.4:1). The most common entity in the nonneoplastic category was chronicpyelonephritis (n = 9, 28.12%). In our study, we documented two unusual cases of renal replacement lipomatosis (RRL), a type of pseudotumor related to nonfunctioning kidneys. Fourteen patients underwent nephrectomy for neoplastic conditions such as Wilm’stumor and renal cell carcinoma (RCC). Conclusion: Nephrectomy for the nonneoplastic condition was performed more frequentlyin our series. Histopathological evaluation of nonneoplastic nephrectomy specimens must be thoroughly considered, particularly in unusual circumstances such as RRL, where a preoperative erroneous initial impression of a malignant lesion such as angiomyolipoma or liposarcoma is possible.

Emphysematous pyelonephritis caused by C. glabrata / Pielonefrite enfisematosa por C. glabrata

Abstract Emphysematous pyelonephritis (EPN) is a rare acute necrotizing infection of the kidney and surrounding tissues, with gas in the renal parenchyma, collecting system or perirenal tissue. The bacterial etiology predominates; mainly Gram-negative bacilli; Candida spp. and C. albicans are rarely described. We describe a case of EPN caused by C. glabrata, sensitive to fluconazole in a young, hypertensive woman with undiagnosed diabetes mellitus (DM), with renal dysfunction upon admission; her abdominal CT scan found a volumetric increase in the left kidney, signs of gas collections and perirenal blurring. Despite the antimicrobial therapy instituted, due to clinical refractoriness, a double J catheter and subsequent total nephrectomy were indicated, with good postoperative evolution. Her uroculture showed C. glabrata sensitive to fluconazole, and the pathology study showed tubular atrophy and intense interstitial inflammatory infiltrate. Despite the serious, potentially fatal condition, we could control the infection and the patient recovered fully. Poor DM management is an important triggering factor, and it is of great relevance to identify the EPN through imaging exams due to the peculiarities of its clinical and potentially surgical management

Resumo A pielonefrite enfisematosa (PNE) é uma infecção aguda rara necrotizante do rim e dos tecidos adjacentes, com presença de gás no parênquima renal, sistema coletor ou tecido perirrenal. Predomina a etiologia bacteriana, principalmente bacilos Gram-negativos; Candida spp. e na maioria das vezes C. albicans são raramente descritas. Descreve-se um caso de PNE causada por C. glabrata sensível a fluconazol em mulher jovem, hipertensa e com diabetes mellitus (DM) não diagnosticada, com disfunção renal à admissão; tomografia computadorizada de abdome constatou aumento volumétrico do rim esquerdo, sinais de coleções gasosas e borramento perirrenal. Apesar da terapia antimicrobiana instituída, devido à refratariedade clínica, foi indicado cateter duplo J e posterior nefrectomia total, com boa evolução pós-operatória. A urocultura evidenciou C. glabrata sensível a fluconazol, e o anatomopatológico demonstrou atrofia tubular e intenso infiltrado inflamatório intersticial. Apesar da condição grave, potencialmente fatal, houve controle do foco infeccioso e plena recuperação da paciente. O mau manejo do DM é um importante fator desencadeante, e é de grande relevância identificar a PNE por meio de exames de imagem devido às peculiaridades de seu manejo clínico e potencialmente cirúrgico.

Xanthogranulomatous pyelonephritis in a pediatric patient / Pielonefrite xantogranulomatosa em paciente pediátrico

Abstract Introduction: Xanthogranulomatous pyelonephritis consists of a chronic infectious and inflammatory process of the renal parenchyma, a variant of chronic obstructive pyelonephritis. It is more prevalent in middle-aged adults, rare in pediatric patients, with less than 300 cases reported in children worldwide. Report: Preschooler, aged 2 years and 11 months, male, with 2 months of abdominal distention, increased temperature and intense pallor, associated with microcytic anemia refractory to the use of ferrous sulfate. 1 week before, he had a bulging in his left flank and a hard palpable mass there. Imaging exams (ultrasound and tomography) revealed an overall enlargement of the left kidney, destruction of the renal parenchyma and intense calyceal dilation, forming the "bear's paw" sign, with a staghorn calculus in the pelvis. He underwent treatment with antibiotic therapy and total nephrectomy, with a specimen sent for pathological examination. Discussion: a disease of uncertain incidence in the pediatric age group, xanthogranulomatous pyelonephritis is more prevalent in male children and affects mainly the left kidney, being frequently associated with the presence of stones. Clinically, it has nonspecific symptoms, the most common being abdominal distension and asthenia. Laboratory exams shows microcytic, leukocytosis, thrombocytosis and increased inflammation, pyuria, hematuria and proteinuria, in addition to bacterial growth in urine culture. The diagnosis is anatomopathological, but it can be hinted by contrasted CT scan, with the classical sign of the "bear's paw". Treatment may include nephrectomy and broad-spectrum antibiotic therapy.

Resumo Introdução: A pielonefrite xantogranulomatosa consiste em um processo infeccioso e inflamatório crônico do parênquima renal, variante da pielonefrite obstrutiva crônica. É mais prevalente em adultos na meia-idade, de ocorrência rara em pacientes pediátricos, com menos de 300 casos relatados em pediatria no mundo. Relato: Pré-escolar de 2 anos e 11 meses, do sexo masculino, com quadro de 2 meses de distensão e aumento da temperatura abdominal e palidez intensa, associado a anemia microcítica refratária ao uso de sulfato ferroso. Apresentava ainda, havia 1 semana da internação, abaulamento em região do flanco esquerdo e massa palpável, de consistência endurecida. Exames de imagem (ultrassonografia e tomografia) revelaram aumento global do rim esquerdo, destruição do parênquima renal e intensa dilatação calicial formando o sinal da "pata de urso", com presença de cálculo coraliforme em pelve. Submetido a tratamento com antibioticoterapia e nefrectomia total, com produto enviado para anatomopatológico. Discussão: Doença de incidência incerta na faixa pediátrica, a pielonefrite xantogranulomatosa é mais prevalente no sexo masculino na infância e acomete principalmente o rim esquerdo, estando frequentemente associada à presença de cálculos. Clinicamente apresenta-se como quadro arrastado de sintomas inespecíficos, sendo os mais comuns distensão abdominal e astenia. Laboratorialmente, apresenta-se com anemia microcítica, leucocitose, trombocitose e aumento de provas inflamatórias, piúria, hematúria e proteinúria, além de crescimento bacteriano em cultura de urina. O diagnóstico é anatomopatológico, porém pode ser sugerido pela tomografia computadorizada com contraste, que tem como sinal clássico a "pata de urso". O tratamento pode incluir nefrectomia e antibioticoterapia de amplo espectro.

Spontaneous Nephrocutaneous Fistula in Xanthogranulomatous Pyelonephritis — A Rare Complication

The formation of fistulous tract between the kidney and adjacent organs is not uncommon while cutaneous fistulization is a rarer occurrence. We present a case of Nephrocutaneous Fistula without prior history of surgery or interventional procedure. Our case involves long standing obstructive pyonephrosis secondary to obstructing calculus at the ureteropelvic junction which led to formation of a fistulous tract upto the skin surface. This patient had complaints of purulent discharge from the right flank region associated with fever spikes since the last 1 month. The cutaneous manifestation in specific location should raise the possibility of underlying renal pathology

Traditional Siddha Medicinal Herbs Used in the Treatment Urinary Tract Infection (Muthira Kiricharam)- A Narrative Review

Urinary tract infection is one the commonest bacterial infection in clinical practice. The infection mostly occurs in the lower part of urinary tract i.e., urinary bladder and urethra in which women are commonly affected due to the anatomical variation in urethra. UTI are primarily caused by gram-negative bacteria, but gram-positive bacteria may also be involved. The most common pathogen is Escherichia coli with the frequency rate of 33%, followed by Klebsiella pneumoniae (11%), Staphylococcus aureus (22.2%), Pseudomonas sp. (7.4%). UTI is commonly represented with the symptoms related to cystitis and pyelonephritis such as dysuria (painful urination), increased frequency of urine, supra pubic discomfort and pain in flanks, etc. As per Siddha text, UTI can be correlated with the terms Muthira kiricharam which has other synonyms such as Neer surukku, Neer kadupu etc. Various herbs have been mentioned in Siddha literatures for the treatment of UTI. The main aim of this review is to summarize the scientific evidences supporting the medicinal herbs mentioned in Siddha text for the treatment of UTI.

Recomendaciones para diagnóstico y tratamiento de la infección del tracto urinario en pediatría. Parte 1: Grupo de trabajo asociado al Comité de Antimicrobianos, Sociedad Chilena de Infectología (SOCHINF) / Recommendations for the diagnosis and treatment of urinary tract infection in pediatrics. Part 1: Working group associated with the Antimicrobial Committee, Chilean Society of Infectology

Resumen La infección del tracto urinario (ITU) es una de las infecciones bacterianas más frecuentes en la infancia. Un adecuado diagnóstico es esencial para poder realizar un tratamiento racional, eficiente y eficaz; sin embargo, existe gran heterogeneidad en los métodos diagnósticos, específicamente en el estudio de la susceptibilidad antimicrobiana. El objetivo de estas recomendaciones es entregar herramientas para uniformar los criterios diagnósticos, el estudio de susceptibilidad bacteriana in vitro y el tratamiento antimicrobiano de la ITU en la población pediátrica, con un enfoque de uso racional de los antimicrobianos. En esta primera parte, se presentan las recomendaciones en cuanto a cómo obtener una adecuada muestra de orina, el diagnóstico de laboratorio incluyendo puntos de corte -unidades formadoras de colonias/mL de orina-, además de consideraciones microbiológicas para el estudio de susceptibilidad y finalmente, el manejo de la ITU en pediatría. En la segunda parte se detalla el tratamiento antimicrobiano de sus complicaciones, el manejo de ITU en situaciones especiales y consideraciones farmacocinéticas y farmacodinámicas de los antimicrobianos a indicar en ITU.

Abstract The urinary tract infection (UTI) is one of the most common bacterial infections in childhood. An adequate diagnosis is essential to be able to carry out a rational, efficient and effective treatment, however, there great heterogeneity in diagnostic methods, specifically in the study of antimicrobial susceptibility. The aim of these recommendations is to provide tools to homogenize the diagnosis criteria, susceptibility study and antimicrobial treatment of urinary tract infection in the pediatric population, with a rational use of antibiotics approach. In the first part, the recommendations regarding diagnosis are presented, such as sampling and cut-off points, as well as microbiological considerations for susceptibility study and management of UTI in pediatrics. The second part details the management of complications, UTI in special situations, and pharmacokinetic and pharmacodynamic considerations of antimicrobials to be prescribed in UTI.

Infección del tracto urinario en el servicio de Pediatría del Hospital Regional de Moquegua / Urinary tract infections in the Pediatric Unit of the Hospital Regional de Moquegua

RESUMEN Objetivo: Determinar el comportamiento clínico epidemiológico de apoyo al diagnóstico terapéutico y susceptibilidad antimicrobiana de infección del tracto urinario (ITU) en hospitalización del servicio de Pediatría del Hospital Regional de Moquegua durante los años 2014-2020. Materiales y métodos: Estudio observacional, descriptivo y retrospectivo. Para el propósito del estudio se tomó en cuenta una población de 248 pacientes, de 1 mes de edad a 14 años con 11 meses y 30 días, con diagnóstico de ITU, a quienes se les realizó un urocultivo. Se utilizó una ficha de recolección de datos y se procesaron los resultados en el programa SPSS versión 23. Resultados: La infección se presentó con más frecuencia en pacientes de sexo femenino (82,26 %) y la fiebre (83,87 %) fue la manifestación clínica predominante. El tratamiento médico que más se utilizó fue la amikacina (49,19 %). El germen que se aisló con mayor frecuencia fue E. coli (70,57 %). Los gérmenes aislados mostraron mayor frecuencia de sensibilidad frente a los antibióticos nitrofurantoina (70,16 %), ceftazidima (51,20 %), gentamicina (43,14 %) y amikacina (28,62 %). Por otro lado, presentaron resistencia frente al sulfametoxazol-trimetropim (74,59 %). Dentro de los hallazgos más comunes sobre estudios de imágenes se encontró la pielectasia unilateral (43,14 %). Conclusiones: La ITU se presenta con mayor frecuencia en mujeres. Es fundamental realizar la anamnesis y el examen clínico y, además, contar con el examen completo de orina y de imágenes. El diagnóstico definitivo se obtendrá vía urocultivo; iniciar el tratamiento de manera empírica dependerá del historial de sensibilidad y resistencia en base a los urocultivos realizados.

ABSTRACT Objective: To determine the clinical and epidemiological characteristics of urinary tract infections (UTIs) supported by the diagnosis, therapy and antimicrobial susceptibility of inpatients of the Pediatric Unit of the Hospital Regional de Moquegua from 2014 to 2020. Materials and methods: An observational, descriptive and retrospective study. The research included a population of 248 patients aged between 1 month and 14 years 11 months 30 days with a diagnosis of UTI who underwent a urine culture. A data collection sheet was used and the results were processed using the IBM SPSS Statistics statistical software 23.0. Results: The infection occurred more often in female patients (82.26 %), with fever being the most prevalent clinical manifestation (83.87 %). The most widely used medical treatment was amikacin (49.19 %). E. coli was the most frequently isolated germ (70.57 %). The isolated germs showed sensitivity to antibiotics such as nitrofurantoin (70.16 %), ceftazidime (51.20 %), gentamicin (43.14 %) and amikacin (28.62 %). In contrast, they were resistant to sulfamethoxazole-trimethoprim (74.59 %). One of the most common findings in the imaging tests was unilateral pyelectasis (43.14 %). Conclusions: UTIs occur more frequently in women. The anamnesis and clinical examination, together with a complete urinalysis and imaging tests, are essential for the diagnosis and treatment of these patients. The definitive diagnosis must be established by a urine culture. The choice of an empirical therapy will depend on the patient's history of sensitivity and resistance to antibiotics based on the urine cultures performed.

Mechanism of Xueniao Capsule in Treatment of Acute Pyelonephritis Based on Network Pharmacology / 中国实验方剂学杂志

ObjectiveTo explore the mechanism of Xueniao capsule in the treatment of acute pyelonephritis （APN） by network pharmacology and experimental verification. MethodThe effect of Xueniao capsule on APN was investigated based on the APN model in rats. The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform （TCMSP）， Chemistryl Database， and SymMap were searched for the chemical components of Smilacis Chinae Rhizoma，Coicis Semen， and Trachycarpi Petiolus. The target information of the components was collected from PharmMapper and SwissTargetPrediction， and disease target information from Therapeutic Target Database （TTD）， DrugBank， DisGeNET， GeneCards， and Online Mendelian Inheritance in Man（OMIM）. The key genes of Xueniao capsule for APN underwent Gene Ontology（GO） and Kyoto Encyclopedia of Genes and Genomes（KEGG） pathway enrichment analyses by Metascap. Real-time quantitative polymerase chain reaction （PCR） and Western blot were employed to verify the prediction results. ResultCompared with the blank group and the sham operation group， the model group showed an increased ratio of the left kidney to the right kidney and organ index（P<0.05， P<0.01），up-regulated white blood cells （WBC），neutrophils （NEUT），monocytes （MONO）， and lymphocytes （LY）（P<0.05， P<0.01）， and elevated levels of nuclear factor-κB（NF-κB）， interleukin-6 （IL-6）， and tumor necrosis factor-α （TNF-α）（P<0.05， P<0.01）. Compared with the model group， the norfloxacin group， the low- and high-dose Xueniao capsule groups showed a decreased ratio of the left kidney to the right kidney and organ index（P<0.05， P<0.01）， dwindled levels of WBC， NEUT， MONO， and LY（P<0.05， P<0.01）， and reduced levels of NF-κB， IL-6， and TNF-α（P<0.05， P<0.01）. The medium-dose Xueniao capsule group showed a decreased ratio of the left kidney to the right kidney and organ index（P<0.05， P<0.01）， reduced levels of WBC， NEUT， MONO， and LY（P<0.05， P<0.01）， and dwindled levels of IL-6 and TNF-α（P<0.05， P<0.01）. Network pharmacological analysis revealed 17 active compounds from Smilacis Chinae Rhizoma， 18 active compounds from Coicis Semen， six active compounds from Trachycarpi Petiolus， and 39 key genes for the treatment of APN in Xueniao capsule. GO enrichment analysis demonstrated 704 biological processes， 22 cellular components， and 59 molecular functions. Sixty-two pathways were enriched in KEGG enrichment analysis. The experimental verification results showed that compared with the blank group， the model group showed increased mRNA expression of prostaglandin-endoperoxide synthase 2 （PTGS2）， mitogen-activated protein kinase 1 （MAPK1）/extracellular signal-regulated protein kinase 2 （ERK2），phosphoinositide 3 kinase （PI3K），protein kinase B2（Akt2），Janus kinase 2 （JAK2），and signal transducer and activator of transcription 3 （STAT3）and protein expression of PI3K， Akt2， JAK2， and STAT3 （P<0.05， P<0.01）. Compared with the model group， the low-dose Xueniao capsule group showed decreased mRNA expression of MAPK1， PI3K， JAK2， and STAT3 and protein expression of PI3K， JAK2， and STAT3 （P<0.05， P<0.01）. The medium-dose Xueniao capsule group showed decreased mRNA expression of MAPK1， PTGS2， PI3K， JAK2， and STAT3， and protein expression of PI3K， JAK2， and STAT3 （P<0.05， P<0.01）. The high-dose Xueniao capsule group showed reduced mRNA expression of PTGS2， MAPK1， PI3K， Akt2， JAK2， and STAT3 and protein expression of PI3K， Akt2， JAK2， and STAT3 （P<0.05， P<0.01）. ConclusionXueniao capsule has a certain curative effect on APN via multiple targets and multiple pathways. The mechanism may be related to the inhibition of the PI3K/Akt signaling pathway and the JAK2/STAT3 signaling pathway.

Fistula reno-apendicular como presentación inusual de pielonefritis xantogranulomatosa: reporte de caso / Reno-appendicular fistulus as an unusual presentation of xanthogranulomatous pyelonephritis: a case report

Resumen La fístula uro-entérica es una comunicación patológica entre la vía urinaria y digestiva. El compromiso del apéndice es infrecuente y son pocos los casos de fístulas reno-apendiculares en la literatura. Se presenta el caso de un paciente con clínica de fiebre, dolor lumbar e hidronefrosis derecha severa secundaria a cálculo coraliforme en la tomografía de vías urinarias. Manejado inicialmente con antibióticos y nefrostomía bajo fluoroscopia, posteriormente suspendida por paso de contraste al intestino. Se realizó una tomografía contrastada que reportó fístula del riñón al intestino. Se llevó a nefrectomía y se encontró fistula hacía el apéndice, por lo cual se realizó apendicectomía concomitante con mejoría clínica evidente. La patología reportó pielonefritis xantogranulomatosa y apendicitis secundaria. La fístula reno-apendicular posee una clínica inespecífica, la tomografía contrastada es una herramienta diagnóstica y la mayoría se detectan como un hallazgo intraoperatorio. El tratamiento usualmente es quirúrgico, con nefrectomía y reparación del segmento intestinal. MÉD. UIS.2021;34(3): 79-84.

Abstract Uro-enteric fistula is a pathological communication between the urinary and digestive tract. Compromise of the appendix is infrequent and few cases of reno-appendicular fistulas have been described in the literature. The case of patient with symptoms of fever, low back pain and severe right hydronephrosis secondary to staghorn calculus on urinary tract tomography is presented. Initially managed with antibiotics and nephrostomy under fluoroscopy, subsequently suspended by passing contrast to the intestine. A contrasted tomography was performed which reported a fistula from the kidney to the intestine. A nephrectomy was carried out and a fistula was found to the appendix, for which a concomitant appendectomy was performed with evident clinical improvement. The pathology reported xanthogranulomatous pyelonephritis and secondary appendicitis. Reno-appendicular fistula has nonspecific symptoms, contrasted tomography is a diagnostic tool and most are detected as an intraoperative finding. Treatment is usually surgical, with nephrectomy and intestinal segment repair. MÉD.UIS.2021;34(3): 79-84.

Nefrectomía laparoscópica en un hospital general

Objetivo: Describir los resultados de la nefrectomía laparoscópica en pacientes con riñones excluidos benignos, malignos y de donantes. Material y métodos: Estudio de serie de casos, retrospectivo, realizado en el Hospital Cayetano Heredia entre agosto del 2013 y mayo del 2019. Se incluyeron pacientes con riñones no funcionantes de cualquier etiología y riñón contralateral funcionante. Se excluyendo pacientes con pionefrosis severa. Se registraron sus características clínicas, demográficas, índice de masa corporal, etiología del riñón no funcionante, tasa de conversión, lateralidad, tiempo operatorio, histopatología de los riñones intervenidos, complicaciones, necesidad de transfusión, estancia hospitalaria y evolución de los pacientes intervenidos. Resultados: Se evaluaron 70 pacientes; en 39 (55,8%) se realizó nefrectomía laparoscópica simple por patología benigna, en 23 (32,8%) nefrectomía radical laparoscópica por cáncer y en 8 (11,4%) nefrectomía laparoscópica donante vivo. En 7 pacientes se tuvo que convertir a cirugía abierta. La media del tiempo operatorio fue 188,94 ± 33,41 min. Los resultados histopatológicos fueron pielonefritis crónica y carcinoma renal. No hubo variaciones clínicamente significativas en los niveles de hemoglobina, hematocrito, urea, creatinina. Las complicaciones según clasificación de Clavien: Grado I: 21(30%), II: 9(12,8%) y V: 1(1,4%). La media del tiempo de hospitalización fue 4,66 ± 2,97 días, con buena evolución postoperatoria en el 85,7% de los pacientes. Conclusión: La nefrectomía laparoscópica para riñones excluidos de patología benigna como maligna y de donantes de riñón, es una técnica mínimamente invasiva, reproducible, segura, efectiva y una alternativa a la cirugía abierta.

SUMMARY Objective: To report the findings of laparoscopic nephrectomies in patients with malignant, benignant and donor conditions. Material and Methods : A retrospective case series carried-out at Cayetano Heredia Hospital between August 2013 and May 2019. Patients with non-functioning kidneys of any etiology and contra lateral kidney functioning were included. Patients with severe pionephrosis were excluded. Demographic, clinical, body mass index, etiology of the nonfunctioning kidney, conversion rate, laterality, operating time, histopathology of the resected kidneys, complications, need for blood transfusion, hospital stay and clinical evolution. Results: 70 patients were evaluated; in 39 (55.8%) a simple laparoscopy for benign entities was performed; in 23 (32.8%) a radical nephrectomy for cancer was performed and in 8 (11.4%) a laparoscopy was performed for living donors. In 7 patients the laparoscopic procedure converted into open surgery. Mean operating time was 188.94 ± 33.41 min. Main histopathological findings were chronic pyelonephritis and renal carcinoma. Complications by Clavien classification were: Grade I: 21(30%), II: 9(12.8%) and V: 1(1.4%). Mean hospital stay was 4.66 ± 2.97 days; 85.7% had good clinical evolution. Conclusion : Laparoscopic nephrectomy for benign and malignant conditions as well as for kidney donors is a minimally invasive technique which is reproducible, safe, effective and therefore represents an alternative to open surgery.

Pielonefritis enfisematosa. Reporte de dos casos con manejo exitoso / Emphysematous pyelonephritis: two cases with successful management

Resumen La pielonefritis enfisematosa es una enfermedad grave y de alta mortalidad, pero de baja frecuencia, que suele presentarse en población con factores de riesgo, dentro de los que destacan la diabetes mellitus tipo 2, la uropatía obstructiva, el etilismo y la inmunosupresión. La clasificación radiológica de la pielonefritis enfisematosa va desde clase 1, que comprende el gas que compromete el sistema colector, hasta clase 4, que es la afección de un solo riñón o bilateral. El tratamiento de la pielonefritis enfisematosa depende del grado de severidad: los casos más leves pueden tratarse con catéter o drenaje percutáneo más terapia antibiótica, mientras que los más graves pueden necesitar intervención quirúrgica para nefrectomía. Aquellos pacientes con choque séptico, trombocitopenia, insuficiencia renal aguda e hipoalbuminemia generalmente tienen pronóstico desfavorable. A continuación, se presentan dos casos de pacientes diabéticos mal controlados mayores de 50 años de edad, quienes fueron diagnosticados a través de estudios imagenológicos. Uno de los pacientes tenía uropatía obstructiva y el otro, riñón en herradura; ambos fueron tratados exitosamente con manejo médico y procedimiento mínimamente invasivo.

Abstract Emphysematous pyelonephritis is a serious disease with an infrequent presentation and high mortality. It tends to occur more frequently in the population with risk factors, among which the following stand out: type 2 diabetes mellitus, obstructive uropathy, alcoholism, immunosuppression. The radiological classification of emphysematous pyelonephritis ranges from type one, which comprises gas that involves the collecting system, to type 4, which is a single or bilateral kidney disease. Treatment will depend on the degree of severity, milder cases can be treated with catheter or percutaneous drainage plus antibiotic therapy, while more severe cases may require paranephrectomy surgery. Patients with septic shock, thrombocytopenia, acute renal failure, and hypoalbuminemia generally have a poor prognosis. We present two poorly controlled diabetic patients over 50 years of age diagnosed through computed tomography. One of the patients with obstructive uropathy and the other with horseshoe kidney, both patients successfully treated with medical management and minimally invasive procedure.

Perfil cl ínico y epidemiológico de gestantes con infecc ión del tracto urinario y bacteriuria asintomática que consultan a un hospital de mediana complejidad de Antioquia (Colombia) / Clinical and epidemiological profile of pregnant women with urinary tract infection and asymptomatic bacteriuria who attend to an hospital of medium complex of Antioquia (Colombia)

Objetivo: caracterizar el perfil clínico y epidemiológico de las mujeres embarazadas con diagnóstico de infección de vías urinarias. La infección del tracto urinario es una de las patologías infecciosas más frecuentes, que afecta en especial a las mujeres gestantes por las complicaciones inherentes a los cambios fisiológicos durante el embarazo. Materiales y métodos: se realizó un estudio de cohorte retrospectiva, empleando historias clínicas de pacientes gestantes entre los años 2017-2020, definiendo criterios para incluirlas en el presente estudio; la información se registró en una base de datos para facilitar su análisis. Resultados: 112 historias clínicas cumplieron con los criterios de elegibilidad. El microorganismo más frecuente en el urocultivo fue la Escherichia coli en el 34.8%. La mediana de días de manejo intrahospitalario fue de 3 días, por el tiempo que toma obtener el resultado del urocultivo para definir la sensibilidad al antibiótico. De las pacientes manejadas con aztreonam, solo una requirió escalar tratamiento antibiótico. Conclusiones: el aztreonam podría considerarse primera línea de elección empírica para manejo intrahospitalario, no obstante, se requieren estudios controlados al respecto; así mismo se requieren estudios de casos y controles que permitan detectar que condiciones predisponen a algunas gestantes frente a otras al desarrollo de estas infecciones..Au

Objective: to characterize the clinical and epidemiological profile of pregnant women diagnosed with urinary tract infection. The urinary tract infection is one of the most frequent infectious diseases, it has great implications in pregnant women because have a higher risk of secondary complications due to the physiological changes inherent in pregnancy. Materials and methods: a retrospective cohort study was carried out, using medical records of pregnant patients between the years 2017-2020, criteria were defined to include the patients; the information was registered in a data base to facilitate the analysis. Results: 112 medical records that met the eligibility criteria were included. The most common microorganism in the culture was Escherichia coli in 34.8%. The median days of in-hospital management in this study was 3 days, explained by the time it takes to obtain the urine culture result to define antibiotic sensitivity. Of the patients managed with aztreonam, only one required scaling antibiotic treatment. Conclusions: aztreonam may be used as first empiric line of treatment in hospitalized patients, nonetheless it requires controlled studies. Likewise, case and control studies are required to detect which conditions predispose some pregnant women to develop urinary tract infections..Au

Incidence of urinary tract infection after cystography / Incidência de infecção urinária após cistografia

ABSTRACT Objective: Cystography an invasive procedure with potential complications such as urinary infection (UI). There are few studies about the incidence of complications associated with this procedure. The purpose of this study is to evaluate the incidence of post-cystography urinary infection (UI.). Methods: Retrospective study with a review of clinical records of patients under 15 years of age, followed in this hospital, who underwent cystography (radiologic or indirect radionuclide) between 2009 and 2018. Post-cystography UI was defined when it occurred until seven days after the procedure. Descriptive and nonparametric statistics were applied to assess possible predictive factors related with post-cystography UI. Results: In the study period, 531 cystograms were undertaken (55% indirect radionuclide and 45% radiologic). The mean age at the procedure was 11.5 months; 62% were boys. Every patient had a previous negative urine culture; 50% were under antibiotic prophylaxis at the time of the procedure. The most common indication for the procedure was the post-natal study of congenital hydronephrosis/other nephrological malformation (53%), followed by the study of febrile UI (31%). Vesicoureteral reflux (VUR) was diagnosed in 40% of procedures. Post-cystography UI occurred in 23 cases (incidence of 4.3%). The most frequent microorganism was E. coli (52%). The presence of VUR was significantly associated with the occurrence of post-cystography IU. Conclusions: The incidence of post-cystography UI was low in our sample. The presence of VUR was significantly associated with the occurrence of post-cystography UI. The authors highlight the importance of an adequate catheterization technique and the need for clinical surveillance after the procedure.

RESUMO Objetivo: A cistografia é um exame invasivo que apresenta potencial iatrogenia, nomeadamente infecção urinária (IU). Os estudos sobre a incidência de complicações associadas a esse exame são escassos. O objetivo deste trabalho foi avaliar a incidência de IU após realização de cistografia. Métodos: Estudo retrospetivo por consulta dos prontuários clínicos dos doentes com idade inferior a 15 anos, seguidos em consulta nesse hospital, que realizaram cistografia (radiológica ou isotópica) entre 2009 e 2018. Admitiu-se relação de causalidade quando o diagnóstico de IU ocorreu até sete dias após a realização do exame. Foi realizada análise estatística descritiva e utilizados testes não paramétricos para avaliar possíveis fatores preditores da ocorrência de IU após cistografia. Resultados: Realizaram-se 531 cistografias (55% isotópicas e 45% radiológicas). A mediana de idade foi de 11,5 meses; 62% eram do sexo masculino. Todos os doentes efetuaram urocultura prévia (negativa); 50% recebiam profilaxia antibiótica (ATB) à data do exame. A indicação mais frequente foi o estudo pós-natal de hidronefrose (HN) congênita/outra malformação nefrourológica (53%), seguida do estudo da IU febril (31%). Documentou-se refluxo vesicoureteral (RVU) em 40% dos exames. Ocorreu IU após cistografia em 23 casos (incidência de 4,3%). O microrganismo mais frequente foi a E. coli (52%). Verificou-se associação entre a presença de RVU e a ocorrência de IU. Conclusões: A incidência de IU pós-cistografia foi relativamente baixa na amostra deste estudo. Observou-se associação entre a ocorrência de IU após cistografia e a presença de RVU. Sublinha-se a importância de uma técnica adequada de cateterização vesical e da vigilância clínica após o exame.

Pielonefritis enfisematosa / Emphysematous pyelonephritis

La pielonefritis enfisematosa es una enfermedad poco frecuente. Esta consiste en una infección necrotizante severa del parénquima renal asociada a formación de gas en el sistema colector, parénquima renal y/o tejidos perirrenales. Se presenta una paciente de 54 años de edad con antecedentes de diabetes mellitus tipo 2 no controlada y litiasis urinaria, atendida en el Cuerpo de Guardia del Hospital Celia Sánchez Manduley, Granma, Cuba. Presentaba náuseas y vómitos, dolor en ambos lados de la región lumbar, y fiebre. La ecografía mostró riñones hiperecogénicos e imágenes ecorefringentes en proyección de las cavidades renales. El cultivo de orina probó la presencia de escherichia coli, y se medicó de forma endovenosa. Por evolución no favorable, se realizó tomografía que evidenció patrón gaseoso en cavidades renales. Se reajustó la antibioticoterapia parenteral y la evolución fue favorable. Se dio alta de consulta, luego de 10 meses de seguimiento asintomática, con diagnóstico de pielonefritis enfisematosa(AU)

Emphysematous pyelonephritis is a rare disease, consisting of severe necrotizing infection of the renal parenchyma associated with gas formation in the collecting system, renal parenchyma and / or peri renal tissues. We report a 54-year-old patient with history of uncontrolled type 2 diabetes mellitus and urinary stones, she was treated in the emergency service at Celia Sánchez Manduley Hospital, Granma, Cuba. She had nausea and vomiting, pain on both sides of her lower back, and fever. Ultrasound showed hyper-echogenic kidneys and echo-refractive images in projection of the renal cavities. The urine culture proved the presence of Escherichia coli, and medications was administered intravenously. Due to the unfavorable evolution, a tomography was performed and it showed a gas pattern in the renal cavities. Parenteral antibiotic therapy was readjusted and the outcome was favorable. After 10 months of asymptomatic follow-up, she was discharged from the clinic with diagnosis of emphysematous pyelonephritis(AU)

Pielonefritis por Escherichia coli en el Hospital Naval de Guayaquil-Ecuador / Pielonefritis by Escherichia coli in the Naval Hospital of Guayaquil-Ecuador

La Pielonefritis por Escherichia coli con frecuencia es de diagnóstico confuso haciéndose necesario combinar pruebas de urología con las de imagenologías, pudiendo generar complicaciones renales hasta poder convertiste en un caso hepático grave por las lesiones que se les infrinja a los riñones, es por ello que esta investigación se planteo como objetivo caracterizar los casos de Pielonefritis por E. coli en el Hospital Naval de Guayaquil. Estudio descriptivo de corte transversal, con una muestra de 33 pacientes. Empleando como técnica de recolección de datos sus historias clínicas, pruebas de sedimento urinario, urocultivo en medio aerobico y pruebas de imagenología. Teniendo como resultado que el sexo femenino (60,61%; n=20/33), con un 60,61% (n=20/33) evidencian diabettus milletus, con grado de inducción primaria 24,24% (n=8/33), presentando dolor lumbar (100% n=33/33), con dolor al orinar y nauseas (90,91%; n=30/33), en los exámenes de urología las colonias/ml valores>105 fue de 57,58% (n=19/33) con E. coli (100%; n=33/33) y las pruebas de imagenología arrojaron que un 60,61% (n=20) evidencia gas en el colector solo sistema, confirmando el diagnóstico pielonefritis. En conclusión, por lo solapado que tiende a ser el diagnostico del Pielonefritis por E. coli deben combinarse las pruebas de urología y las de imágenes(AU)

Pyelonephritis by Escherichia coli is often of confused diagnosis making it necessary to combine urology tests with imaging, may cause renal complications until you can become a serious liver case due to injuries to the kidneys, That is why this research was aimed at characterizing the cases of Pyelonephritis by E. coli in the Naval Hospital of Guayaquil. Descriptive cross-sectional study, with a sample of 33 patients. Using as a data collection technique their clinical histories, urine sediment tests, uroculture in an aerobic environment and imaging tests. As a result, the female sex (60,61%; n=20/33), with 60.61% (n=20/33) showed diabettus milletus, with degree of primary induction 24.24% (n=8/33), presenting lumbar pain (100% n=33/33), with pain when urinating and nausea (90.91%; n=30/33), in urology examinations the colonies/ml values>105 was 57.58% (n=19/33) with E. coli (100%; n=33/33) and imaging tests showed that 60,61% (n=20) gas in the collector only system, confirming the diagnosis pyelonephritis. In conclusion, because of the overlapping that tends to be the diagnosis of Pyelonephritis by E. coli, urology and imaging tests should be combined(AU)