Prevalence of secondary arterial hypertension in patients with acute renal failure in a secondary-level pediatric hospital in Northwestern Mexico / Prevalencia de hipertensión arterial secundaria en pacientes con insuficiencia renal aguda en un hospital pediátrico de II nivel en el Noroeste de México

Abstract Background: The worldwide prevalence of arterial hypertension in pediatric patients is 3.5%, and it has repercussions at renal, cardiovascular, neurological, and lifestyle levels. This study aimed to estimate the prevalence of arterial hypertension, mortality, and follow-up in patients with acute renal failure in the nephrology outpatient clinic at a second-level hospital in Northwestern Mexico. Methods: We conducted a descriptive, retrospective, and observational study. Men and women aged 1-18 years diagnosed with acute kidney injury were analyzed from January 1, 2012, to December 31, 2021. The medical and electronic records of the candidate patients were analyzed, and nutritional data, laboratory analysis, most frequent etiology, and follow-up in the pediatric nephrology clinic were collected. Those with exacerbated chronic kidney disease and previous diagnosis of high blood pressure were excluded. Results: One hundred and seventy-four patients were evaluated, and only 40 were eligible for the study (22.98%), predominantly males with a mean age of 9.9 years. The degree of arterial hypertension was 50% for grade I and 50% for grade II (p = 0.007); the mortality rate was 32%. One hundred percent of hypertension cases were controlled at 6 months after discharge (p = 0.000080). Conclusions: Our results were similar to those reported in other studies. Follow-up and early detection of arterial hypertension in children need to be strengthened.

Resumen Introducción: La prevalencia de hipertensión arterial a nivel mundial es 3.5% en los pacientes pediátricos y tiene repercusiones tanto a nivel renal, cardiovascular, neurológico y estilo de vida. El objetivo de este estudio fue estimar la prevalencia de hipertensión arterial en pacientes con insuficiencia renal aguda, estimar la mortalidad y el seguimiento de los pacientes en la consulta externa de nefrología en un hospital de segundo nivel en el Noroeste de México. Métodos: Estudio observacional descriptivo, retrospectivo. Se analizaron hombres y mujeres entre 1 a 18 años de edad con el diagnóstico de lesión renal aguda, entre 1 de enero del 2012 hasta 31 de diciembre del 2021. Se analizaron las historias clínicas y el expediente electrónico de los pacientes candidatos, se recolectaron datos nutricionales, análisis de laboratorio, etiología más frecuente y el seguimiento en la consulta de nefrología pediátrica. Se excluyeron aquellos con enfermedad renal crónica agudizada y diagnóstico previo de hipertensión arterial. Resultados: 174 pacientes fueron evaluados y solamente 40 fueron candidatos al estudio (22.98%), de los cuales predominaron masculinos con una edad media de 9.9 años. El grado de hipertensión arterial fue 50% para grado I y 50% para grado II (p = 0.007); tasa de mortalidad 32%. El 100% del control de la hipertensión se logró en el seguimiento del egreso de los pacientes en 6 meses (p = 0.000080). Conclusiones: Nuestros resultados fueron similares a los reportados en otros estudios. Se debe reforzar el seguimiento y detección oportuna de hipertensión arterial en los niños.

Ludwig's angina complicating pregnancy: an unusual presentation

Pregnancy is a state of several physiological changes, which predisposes many to oral health problems. However, the majority of pregnant women do not receive oral health counseling. Pregnant women who receive inadequate dental care are at risk for odontogenic infections, which can have serious consequences. Here we are presenting a case of 32 weeks pregnancy with Ludwig's angina complicated by acute renal failure.

Adherence to treatment in patients with chronic kidney disease undergoing hemodialysis / Adesão ao tratamento de pacientes com doença renal crônica em hemodiálise

Objective: To identify the adherence to therapeutic regimens in patients with chronic kidney disease undergoing hemodialysis (HD). Method: This is a descriptive, cross-sectional study using a quantitative approach developed at an HD center in the south of Minas Gerais, Brazil. The study participants were 51 patients undergoing HD. Personal, socioeconomic, and objective data were collected, and the End-Stage Renal Disease Adherence Questionnaire (ESRD-AQ) was applied. The analysis was performed using simple descriptive statistics. Result: The average age was 56.7 years, and 58% of the patients were male. The percentages of non-adherence were diet (35.4%), hemodialysis (21.6%), fluid intake (15.7%), and medication (13.7%). Conclusion: Therapeutic adherence is a complex process that requires constant monitoring by a multidisciplinary team.

Objetivo: Identificar a adesão ao regime terapêutico de pacientes com doença renal crônica em hemodiálise. Método: Trata-se de um estudo descritivo, transversal, com abordagem quantitativa, desenvolvido em um centro de hemodiálise situado no sul de Minas Gerais. Os participantes do estudo foram 51 pacientes em tratamento hemodialítico. Foram coletados dados pessoais, socioeconômicos, objetivos aplicado o "Questionário de avaliação sobre a adesão do portador de doença renal crônica em hemodiálise". A análise foi realizada por meio de estatística descritiva simples. Resultado: A média de idade foi de 56,7 anos e 58% dos pacientes foram do sexo masculino. Os percentuais de não aderência encontrados foram dieta (35,4%), hemodiálise (21,6%), ingestão de líquidos (15,7%) e medicação (13,7%). Conclusão: A adesão terapêutica é um processo complexo, e por isso necessita de acompanhamento constante pela equipe multiprofissional.

A one year prospective study of acute renal failure in pregnancy and its maternal and fetal outcome

Background: Pregnancy related acute renal failure is still common in developing countries. This study is aimed to evaluate the etiological factors responsible for ARF in pregnancy, and, maternal and fetal outcome of this condition. It contributes upto 20-22% of the referrals to higher centers and is associated with high risk of maternal mortality (9 to 55%) in developing countries.Methods: This is a prospective study carried out at M. R. medical college and Basaweshwara teaching hospital, Kalaburagi (Gulbarga), for one year from January 2017 to December 2017.Results: A total of 38 patients were hospitalised with renal failure in pregnancy. Majority of the patients (73.68%) were multigravida. Eclampsia (42.10%) and severe post-partum hemorrhage (21.05%) were the most common causes of acute renal failure in late third trimester and in post-partum period. Edema (65.78%) and oliguria (50%) were the most common presenting complaints. Most cases (73.68%) responded to diuretics and IV fluids. 21.05% required dialysis, 39.47% needed ICU admissions. Maternal mortality amounted to 13.15%. Fetal IUGR (18.42%), preterm delivery (13.15%), fetal distress (10.52%), NICU admissions (15.78%), and still births (7.89%) were noted.Conclusions: Pregnancy related acute renal failure is still high in developing countries. Good antenatal care, correction of anaemia, early diagnosis and management of pre-eclampsia, good transport facilities to shift to tertiary care centers are essential requirements to reduce maternal and fetal mortality and morbidity due to acute renal failure in pregnancy.

Comparison of Effect of Hirudo， Notoginseng Radix et Rhizoma， and Their Combinations on Renal Fibrosis in Rats with Chronic Renal Failure / 中国实验方剂学杂志

ObjectiveTo observe the effects of Hirudo， Notoginseng Radix et Rhizoma， and drug pair on renal pathological morphology and protein phosphatase 2A （PP2A）/adenylate activated protein kinase （AMPK）/mammalian target of rapamycin （mTOR） signal pathway in rats with chronic renal failure （CRF）. MethodThe 55 male SD rats were randomly divided into a normal group （n=11） and a modeling group （n=44）. The normal group was fed conventionally， and the modeling group was given 0.25 g·kg-1·d-1 adenine by gavage for 28 days to replicate the CRF model. After successful modeling， rats were randomly divided into model group， Hirudo group （3 g·kg-1·d-1）， Notoginseng Radix et Rhizoma group （3 g·kg-1·d-1）， and Hirudo + Notoginseng Radix et Rhizoma group （3 g·kg-1·d-1）， with 9 rats in each group. The normal group and model group were given a constant volume of normal saline by intragastric administration for 30 days. At the end of the experiment， the levels of serum creatinine （SCr） and urea nitrogen （BUN） in all groups were measured. The renal pathological morphology changes were observed by hematoxylin-eosin （HE） staining， Masson staining， and electron microscopy. The mRNA expressions of PP2A， AMPK， and mTOR were detected by Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR）. The protein expression levels of PP2A， AMPK， phosphorylation（p）-AMPK， mTOR， and p-mTOR in renal tissue were detected by Western blot. ResultCompared with the normal group， the renal pathological structure changes were obvious， and the levels of SCr and BUN were significantly increased. The mRNA expression of PP2A， protein expression of PP2A， and p-mTOR/mTOR expression were significantly increased， and the p-AMPK/AMPK was significantly decreased in the model group （P<0.05）. Compared with the model group， the renal pathological morphology changes were significantly improved， and the levels of SCr and BUN were significantly decreased. The mRNA expression of PP2A， protein expression of PP2A， and p-mTOR/mTOR expression in the renal tissue were significantly decreased， and the p-AMPK/AMPK was significantly increased （P<0.05） in all groups after drug intervention. In addition， the effect in the Hirudo+Notoginseng Radix et Rhizoma group was better. The mRNA expression levels of AMPK and mTOR in the renal tissue were not significantly different among the normal group， model group， and other groups. ConclusionThe efficacy of Hirudo and Notoginseng Radix et Rhizoma pairs in improving renal fibrosis in rats with CRF is significantly better than that of the single drug， and its improvement on renal fibrosis in rats with CRF may be related to the regulation of PP2A/AMPK/mTOR signaling pathway.

Study on the Relationship Between OAT1 Expression and Renal Osteodystrophy in Rats with Chronic Renal Failure / 昆明医科大学学报

Objective To investigate the changes of OAT expression in bone cells in chronic renal failure(CRF)and involved mechanism,and to explore the effect of OAT expression on bone metabolism.Methods Ra-ndomly divide the rats into a control group(n=6)and a model group(n=6).The model group established a rat chronic renal failure model using"single nephrectomy+adenine gavage"method,and the red blood cell(RBC)and hemoglobin(HGB)of the rat body were measured using a blood routine analyzer;Measure indicators such as creatinine(Cr),urea nitrogen(BUN),uric acid(UA),blood calcium(Ca2+),and blood phosphorus(P3+)using a fully automated biochemical analyzer;Pathological examination of rat kidneys;X-ray examination of rat tibia;Immunohistochemical examination of bone tissue OAT1 level.Results The bone density of the model group rats is lower than that of the control group;The calcium and phosphorus metabolism of rats in the model group was in metabolic disorder,and the OAT1 value of bone tissue binding was much lower than that of the control group(P= 0.0018),which was statistically significant.(P=0.0018)Conclusion Chronic renal failure affected the binding ability of OAT1 in bone tissue,leading to the metabolic disorder for calcium absorption and phosphorus metabolism,thus aggravating renal osteodystrophy(P<0.05).

Effects of Sanqi on Sortilin,TLRs and vascular calcification in rats with chronic renal failure / 实用医学杂志

Objective Taking Sortilin as the entry point,this study aims to explore the mechanism of vascular calcification in chronic renal failure(CRF)and explore the influence of Sanqi on Sortilin,TLRs and vascular calcification,and to provide an effective method for clinical reduction of cardiovascular events in CRF.Methods Thirty-six male SD rats were randomly divided into normal group,model group,low-,medium-and high-dose Sanqi group and calcitriol group,with 6 rats in each.The replicative CRF vascular calcification rat model was fed with adenine combined with high phosphorus diet.Aortic calcium salt deposition,serum creatinine(Scr),urea nitrogen(BUN),blood calcium(Ca),blood phosphorus(P),total cholesterol(TC),triglyceride(TG),TLRs and Sortilin protein in aorta and inflammatory factors were detected.Results In the model group,renal fibrosis was obvious and many adenine crystals were found in renal interstitium.Large deposits of calcium salts were found.Renal fibrosis and calcium salt deposition were alleviated in different degrees in all treatment groups.Compared with those in the normal group,the level of BUN,Cr,P,TG,TC,IFN-γ,IL-6,IL-10 and IL-17A in the serum of the model group was ascended(P<0.01),while the level of Ca was descended(P<0.01).Compared with those in the model group,the level of BUN,Cr,P,TG,TC,IFN-γ,IL-6,IL-10 and IL-17A in the serum of rats in the Sanqi medium and high dose group and calcitriol group was significantly decreased(P<0.01),and the contents of Ca were significantly increased(P<0.05 or P<0.01).Compared with those in the normal group,the protein expression of BMP2,RUNX2,Sortilin,TLR7 and TLR9 in aortic tissue of rats in the model group was elevated(P<0.01),while the protein expression of SM22α was declined(P<0.01).Compared with those in the model group,the protein expression of BMP2,RUNX2,Sortilin,TLR7,and TLR9 in the low-,medium-,and high-dose Sanqi group and calcitriol group was decreased significantly(P<0.01);the protein expression of SM22α was increased significantly(P<0.05 or P<0.01),and the high-dose Sanqi group and calcitriol group had more significant effects.Conclusion Sanqi can improve renal fibrosis and vascular calcification in CRF model rats,and its mechanism may be related to the regulation of biological functions of Sortilin and TLRs.

Inhibitory effect of Heidihuang Pills on renal fibrosis in a rat model of chronic renal failure via regulation of IGF-1 expression / 中成药

AIM To explore the effect of Heidihuang Pills on renal fibrosis in a rat model of chronic renal failure(CRF)and its mechanism.METHODS Wistar rats were randomly divided into the blank group for normal feeding and the model group for the establishment of CRF rat models by 5/6 nephrectomy.Subsequently,the successfully established rat models were randomly divided into the model group,the Heidihuang Pills group(10.43 g/kg),and the Heidihuang Pills+IGF-1R blocker(JB1)group for a regimen of 7-day subcutaneous injection of 18 μg/kg JB1 followed by gavage of 10.43 g/kg Heidihuang Pills.Eight weeks after the administration,the rats had their serum levels of Scr and BUN detected;their pathological changes of renal tissue observed by HE and Masson staining;their renal protein expressions of TGF-β,HIF-1α and α-SMA detected by immunohistochemistry;their renal protein expressions of IGF-1R and TGF-β detected by Western blot;and their renal mRNA expressions of IGF-1R and TGF-β detected by RT-qPCR.RESULTS Compared with the blank group,the model group displayed increased serum levels of Scr and BUN(P＜0.05);increased,degree of renal fibrosis,and renal fibrosis area(P＜0.05);increased renal expressions of TGF-β,HIF-1α,α-SMA proteins and TGF-β mRNA(P＜0.05);and decreased expressions of IGF-1R mRNA and protein(P＜0.05).Compared with the model group,the Heidihuang Pills group displayed decreased serum Scr and BUN levels(P＜0.05);decreased inflammatory cells in renal interstitium and the fibrosis degree(P＜0.05);decreased renal expressions of TGF-β,HIF-1α,α-SMA proteins and TGF-β mRNA(P＜0.05);and increased expressions of IGF-1R mRNA and protein(P＜0.05).However,the administration of JB1 could weaken the improvement effect of Heidihuang Pills on renal fibrosis in CRF rats(P＜0.05).CONCLUSION Heidihuang Pills can inhibit the renal fibrosis in CRF rats,and the inhibition process is related to up-regulated IGF-1 expression and promoted combination of IGF-1 and IGF-1R.

Effect and mechanism of pachymic acid on renal function and fibrosis in rats with chronic renal failure / 中国药房

OBJECTIVE To investigate the effect of pachymic acid （PA） on renal function and fibrosis in chronic renal failure （CRF） rats and its potential mechanism based on the Ras homolog gene family member A （RhoA）/Rho-associated coiled-coil forming protein kinase （ROCK） signaling pathway. METHODS Using male SD rats as subjects， the CRF model was established by 5/6 nephrectomy； the successfully modeled rats were divided into model group， PA low-dose， medium-dose and high-dose groups （5， 10， 20 mg/kg PA）， high-dose PA+ROCK pathway activator lysophosphatidic acid （LPA） group （20 mg/kg PA+1 mg/kg LPA）， with 15 rats in each group. Another 15 rats were selected as the sham operation group with only the kidney exposed but not excised. The rats in each drug group were gavaged and/or injected with the corresponding liquid via the caudal vein， once a day， for 12 consecutive weeks. During the experiment， the general condition of rats was observed in each group. After the last administration， the serum renal function indexes （blood urea nitrogen， serum creatinine， uric acid） of rats in each group were detected， the renal histopathological changes were observed； the renal tubule injury score and the area of renal fibrosis were quantified. The levels of oxidative stress indexes [malondialdehyde （MDA）， superoxide dismutase （SOD）] and inflammatory factors （tumor necrosis factor-α， interleukin-1β， interleukin-6）， the positive expression rates of connective tissue growth factor （CTGF） and collagen Ⅰ were detected as well as the expression levels of pathway-related proteins （RhoA， ROCK1） and fibrosis- related proteins （transforming growth factor-β1， bare corneum homologs 2， α-smooth muscle actin） were determined. RESULTS Compared with the sham operation group， the rats in model group had reduced diet， smaller body size， listless spirit and sluggish response， reduced and atrophied glomeruli， dilated renal tubules with chaotic structure， and a large number of inflammatory cells infiltrated interstitium； the serum levels of renal function indexes， renal tubule injury score， renal fibrosis area proportion， the levels of MDA and inflammatory factors， the positive expression rates of CTGF and collagen Ⅰ， and the expression levels of pathway-related proteins and fibrosis-related proteins in renal tissues were significantly increased， while SOD level was significantly decreased （P＜0.05）. Compared with the model group， the general condition and pathological injuries of kidney tissue of rats in PA groups were improved to varying degrees，and the above quantitative indexes were significantly improved in a dose-dependent manner （P＜0.05）. LPA could significantly reverse the improvement effect of PA on the above indicators （P＜0.05）. CONCLUSIONS PA can improve renal function and alleviate renal fibrosis in CRF rats， which may be related to inhibiting the activation of RhoA/ROCK signaling pathway.

Prevalence rate and influencing factors of uremic pruritus in hemodialysis patients in Anhui province / 安徽医科大学学报

Objective @#To explore the prevalence of uremic pruritus (UP) in patients with maintenance hemodialy sis (MHD) in Anhui Province and its influential factors .@*Methods @#Patients with MHD were enrolled in 27 hemo dialysis centers in Anhui Province . Clinical data were compared .@*Results @#A total of 3 025 patients with MHD were included . The prevalence of UP was 63.3% , among them , mild UP 55.9% and moderate to severe UP 7.4% . The prevalence rates of UP in southern Anhui , central Anhui and northern Anhui were 75.4% , 63.6% and 57.9% . The prevalence of total UP in ≤30 years , 31 - 50 years , 51 - 70 years and ≥71 years was 53.5% ,59.8% , 65.4% and 65.9% . The prevalence of total UP and moderate to severe UP increased with age ( P < 0.01) . Age , age of dialysis , proportion of hypertension , 25(hydroxy) vitamin D3 [25(OH)D3 ] , proportion of low flux dialyzer usage and proportion of calcium phosphorus binder usage in UP group were higher than those in the group without UP. However , the levels of diastolic blood pressure , hemoglobin ( Hb) and hemodialysis filtration ratio in the UP group were lower than those in the non UP group (P < 0.05) . By comparison , the age , hyperten sion and diabetes of patients in moderate and severe UP group were higher than those in mild UP group , while the proportion of non calcium phosphorus binding was lower than that in mild UP group ( P < 0.05) . Binary Logistic regression analysis showed that high 25(OH)D3 was associated with a higher risk of UP in MHD patients , and high throughput dialyzer use was associated with a lower risk of UP in MHD patients ( P < 0.05) .@*Conclusion @#The prevalence rate of UP in maintenance hemodialysis patients in Anhui province is 63.3% . The prevalence of UP is the highest in southern Anhui , and the prevalence of total UP and moderate to severe UP increases with age . High 25(OH)D3 levels are a risk factor for UP in MHD patients , and the use of high throughput dialyzers can reduce the risk of UP in MHD patients .

Chronic renal failure: perception and knowledge of patients at the terminal stage in Brazzaville

Introduction. Chronic kidney disease (CKD)is a long-term condition in which the kidneys gradually lose their function over time, becomes impaired, leading to a buildup of waste and toxins in the body. This aimed at at evaluating the perception of CKDamong newly diagnosed end-stage chronic renal failure patients. Methodology. This was a descriptive cross-sectional study with prospective data collection, which took place over the period from January 1 to , in the Nephrology department of the Brazzaville university hospital. It covered 128 patients who were exhaustively identified. sociodemographic data and data on illness perception were collected from medical records and during individual interviews using pre-established survey forms. Microsoft Excel 2021 software enabled data analysis and processing. Results. We studied 128participants with a sex ratio of 2.5 and the age was was 50. There was a misperception of CKDamong46.1% of our participants. CKD was thought in curableby 51,6% of them and it was considered a fairly worrying disease by 61.7% of patients. The belief of CKD having a supernatural cause was held by 46.9% of patients. Patients thought that CKD could be treated with traditional medicine (36,7%), modern medicine (27,3%) and through prayer(18%). CKD was unknown before hospitalization by 76,6% of patients. Conclusion. There is a wrong perception of chronic kidney failure by patients in the end stage of their kidney disease due to the general public's low level of knowledge about kidney diseases

Introduction.La maladie rénale chronique (MRC) est une affection à long terme au cours de laquelle les reins perdent progressivement leur fonction au fil du temps, deviennent altérés, ce qui entraîne une accumulation de déchets et de toxines dans le corps. Cette étudevisait à évaluer la perception de la MRC chez les patients atteints d'insuffisance rénale chronique au stade terminal récemment diagnostiqués. Méthodologie.Il s'agissait d'une étude descriptive transversale avec une collecte prospective des données, qui s'est déroulée du 1er janvier au 30 octobre 2023, au service de néphrologie de l'hôpital universitaire de Brazzaville. Elle concernait 128 patients qui ont été identifiés de manière exhaustive. Les données sociodémographiques et les données sur la perception de la maladie ont été collectées à partir des dossiers médicaux et lors d'entretiens individuels à l'aide de formulaires d'enquête préétablis. Le logiciel Microsoft Excel 2021 a permis l'analyse et le traitement des données. Résultats.Nous avons étudié128 participants, avec un ratio homme-femme de 2,5 et un âge médian de 50 ans. Il y avait une méconnaissance de la MRC chez 46,1% de nos participants. 51,6% d'entre eux pensaient que la MRC était incurable et 61,7% des patients considéraient cette maladiecomme assez inquiétante. 46,9% des patients pensaient que la MRC avait une cause surnaturelle. Les patients pensaient que la MRC pouvait être traitée avec la médecine traditionnelle (36,7%), la médecine moderne (27,3%) et par la prière (18%). La MRC étaitméconnue avant l'hospitalisation chez 76,6% des patients. Conclusion.Il existe une perception erronée de l'insuffisance rénale chronique chez les patients en stade terminal de leur maladie rénaledû à la faible connaissance du grand public sur les maladies rénales.

Identificación de Factores Clínicos Relacionados a una Mayor Mortalidad Asociada a Insuficiencia Renal Aguda en pacientes de Terapia Intensiva

La insuficiencia renal aguda (IRA) es una de las complicaciones más frecuentes en los pacientes hospitalizados, siendo un factor de riesgo de mortalidad. Es de suma importancia identificar la asociación de factores clínicos que empeoran la mortalidad en pacientes con IRA internados en una unidad de terapia intensiva (UTI). Se incluyeron 218 pacientes, de los cuales el 63,7% (n=139) correspondieron a hombres con un promedio de edad de 43±19 años. El análisis de correlación de variables de control, dependiente e independiente fue a través del coeficiente de Spearman y el OR fue analizado mediante regresión logística. De los 218 pacientes, falleció el 33% (n=72) de los pacientes internados en UTI. La IRA ocurrió en 28,4% (n=62) del total de pacientes y de estos, el 61,3% (n=38) fallecieron, con un OR de 4,94 (p 0,0001). La mayor proporción de fallecidos perteneció a la categoría AKIN 3. Las variables clínicas de ventilación mecánica (PR 3,57, IC 95%, 0,34-37,93), uso de drogas vasoactivas (PR 8,32, IC 95%, 3,20-21,64), puntuación APACHE III (PR 1,12, IC 95%, 1,03-1,23), edad (PR 1,01, IC 95%, 0,99-1,04) y los sometidos a cirugía (PR 0,28, IC 95%, 0,10-0,80) tuvieron asociación positiva y aumentaron la mortalidad. La presencia de variables clínicas de ventilación mecánica, la utilización de drogas vasoactivas, sepsis, el estudio APACHE III, la edad, la categoría AKIN 3, y el antecedente de cirugía previo al ingreso a UTI aumentan significativamente la mortalidad en pacientes con IRA en UTI.

Acute renal failure (ARF) is one of the most frequent complications in hospitalized patients and is a risk factor for mortality. It is extremely important to identify the association of clinical factors that worsen mortality in patients with ARF admitted to an intensive care unit (ICU). A total of 218 patients were included, of which 63.7% (n=139) were men with a mean age of 43±19 years. The correlation analysis of control, dependent, and independent variables was done through Spearman's coefficient and the OR was analyzed through logistic regression. Of the 218 patients, 33% (n=72) died in the ICU. ARF occurred in 28.4% (n=62) of all patients and of these, 61.3% (n=38) died, with an OR of 4.94 (p 0.0001). The highest proportion of deceased patients were in the AKIN 3 category. The clinical variables of mechanical ventilation (PR 3.57, 95% CI, 0.34-37.93), use of vasoactive drugs (PR 8.32, 95% CI, 3.20-21.64), APACHE III score (PR 1.12, 95% CI, 1.03-1.23), age (PR 1.01, 95% CI, 0.99-1.04) and those who underwent surgery (PR 0.28, 95% CI, 0.10-0.80) had a positive association and increased mortality. The presence of clinical variables of mechanical ventilation, the use of vasoactive drugs, sepsis, APACHE III stage, age, AKIN 3 category, and a history of surgery before admission to the ICU significantly increase mortality in patients with ARF in ICU.

Comparação de fórmulas para cálculo da taxa de filtração glomerular estimada e seus limiares diagnósticos para doença renal crônica em pessoas idosas: um estudo transversal / Comparison of formulas for calculating estimated glomerular filtration rate and its diagnostic thresholds for chronic kidney disease in older adults: a cross-sectional study

Resumo Objetivo Avaliar e comparar as fórmulas CKD-EPI, BIS1 e MDRD e o limiar diagnóstico de 45 e 60 ml/min/1,73m2 em pacientes idosos. Método Estudo observacional do tipo transversal, de caráter descritivo e analítico. Foram incluídos pacientes atendidos em ambulatório de referência entre janeiro/2020 e junho/2022, com idade ≥65 anos. Foram excluídos pacientes com apenas uma dosagem de creatinina ou com alterações transitórias da TFG. Resultados Observou-se que entre o grupo de pacientes com idade entre 65-74 anos e 75-84 anos as estimativas da TFG feitas pela fórmula CKD-EPI foram superiores às fórmulas BIS1 e MDRD. Enquanto, no grupo de pacientes com 85-94 anos a CKD-EPI não apresentou diferença quando comparada com MDRD, permaneceu com estimativas maiores apenas quando comparada com a BIS1. Observamos maior dispersão entre CKD-EPI e BIS1, mostrando menor concordância entre essas fórmulas, confirmada pelo teste Kappa (76,7%) e a concordância quase perfeita entre CKD-EPI e MDRD. Conclusão A fórmula BIS1 apresentou melhor correlação da diminuição da TFGe conforme o avanço das faixas etárias, podendo-se relacionar com o processo de envelhecimento renal fisiológico, podendo ser uma ferramenta auxiliar na estimativa da TFG em idosos, auxiliando no diagnóstico mais preciso da DRC, assim como, no planejamento de intervenções que possam retardar a progressão da DRC e prever risco de mortalidade por doenças cardiovasculares.

Abstract Objective To evaluate and compare the CKD-EPI, BIS1 and MDRD formulas and diagnostic thresholds of 45 and 60 ml/min/1.73m2 in older patients. Method A cross-sectional, descriptive, analytical observational study was conducted. Patients aged ≥65 years treated at a referral outpatient clinic between January 2020 and June 2022, were assessed. Patients with only one creatinine level or with transient GFR abnormalities were excluded. Results The GFR estimates using the CKD-EPI formula were higher than both the BIS1 and MDRD formulas in patient groups aged 65-74 years and 75-84 years. In the group of patients aged 85-94 years, the CKD-EPI showed no difference when compared with the MDRD, yielding higher estimates only compared with the BIS1. Greater dispersion was found between the CKD-EPI and BIS1, showing less agreement between these formulas, as confirmed by the Kappa test (76.7%), while there was almost perfect agreement between the CKD-EPI and MDRD. Conclusion The BIS1 formula showed stronger correlation of the decrease in eGFR with advancing age, reflecting the physiological renal aging process and serving as a potentially useful tool for estimating GFR in older adults. The formula can help provide a more accurate diagnosis of CKD and aid planning of interventions to slow the progression of CKD and predict the risk of mortality from cardiovascular diseases.

Análisis de los factores pronósticos de mortalidad en los pacientes con enfermedad renal crónica en hemodiálisis / Analysis of Mortality Prognostic Factors in Patients with chronic Kidney Disease on Hemodialysis

Introducción: La enfermedad renal crónica es una de las principales causas de mortalidad en todo el mundo. La estratificación del riesgo a través del análisis de factores pronósticos podría generar un cambio de paradigma. Objetivo: Analizar los factores pronósticos de mortalidad en los pacientes con enfermedad renal crónica en hemodiálisis. Métodos: Se realizó un estudio no experimental, longitudinal de cohorte retrospectivo en los pacientes con enfermedad renal crónica en hemodiálisis en el Hospital General Docente: Dr. Ernesto Guevara de la Serna durante el período del 1 de enero de 2017 al 31 de diciembre de 2021. En general, se analizaron los factores pronósticos de mortalidad mediante el análisis multivariado de regresión logística binaria y se determinó el porcentaje correcto de clasificación del modelo de regresión. Resultados: Se analizaron como variables pronosticas de mortalidad la enfermedad cardiovascular [B = 3,831; p = 0,000; Exp (B) = 46,118], Albúmina 17 mmol/L [B = 1,326; p = 0,027; Exp (B) = 3,767], glucemia < 4 mmol/L [B = 1,600; p = 0,015; Exp (B) = 4,955] y ganancia de peso interdialítica excesiva [B = 2,243; p = 0,001; Exp (B) = 9,420]. El porcentaje global de clasificación del modelo de regresión logística binaria fue de 89,5 por ciento. Conclusiones: Se analizó el modelo predictivo de regresión logística que presentó una buena precisión con los factores de pronósticos asociados a la mortalidad en los pacientes en hemodiálisis(AU)

Introduction: Chronic kidney disease is one of the main causes of mortality worldwide. Risk stratification through the analysis of prognostic factors could generate a paradigm shift. Objective: To analyze the prognostic factors of mortality in patients with chronic kidney disease on hemodialysis. Methods: A non-experimental, longitudinal retrospective cohort study was carried out on patients with chronic kidney disease on hemodialysis at Dr. Ernesto Guevara de la Serna General Teaching Hospital from January 2017 to December 31, 2021. The prognostic factors of mortality were analyzed using multivariate binary logistic regression analysis and the correct percentage of classification of the regression model was determined. Results: Prognostic variables of mortality were analyzed, such as cardiovascular disease [B = 3.831; p = 0.000; Exp (B) = 46.118], albumin 17 mmol/L [B = 1.326; p = 0.027; Exp (B) = 3.767], blood glucose < 4 mmol/L [B = 1.600; p = 0.015; Exp (B) = 4.955] and excessive interdialytic weight gain [B = 2.243; p = 0.001; Exp(B) = 9.420]. The overall classification percentage of the binary logistic regression model was 89.5percent. Conclusions: The logistic regression predictive model was analyzed, which showed good precision with the prognostic factors associated with mortality in hemodialysis patients(AU)

Genetic and phenotypic profile of Fabry disease in the population of Vale do Paraiba and Eastern São Paulo / Perfil genético e fenotípico da doença de Fabry na população do Vale do Paraíba e Zona Leste de São Paulo

ABSTRACT Introduction: Fabry disease (FD) is an inborn error of metabolism characterized by α-galactosidase A deficiency. The primary objective was to evaluate the genetic and phenotypic profile of Fabry disease in hemodialysis. Methods: Observational cohort study to determine the incidence of genetic variations and phenotypic changes for FD in hemodialysis patients in the Paraiba Valley and Eastern São Paulo. Genetic testing for the GLA gene was performed for men and women over 12 years of age at the hemodialysis clinics between January 2016 and December 2019 as a screening protocol. Results: The cases came from screening exams of the index case among patients with chronic kidney disease, resulting in 17 families and totaling 82 patients under study. The classification of the most prevalent variant was that of uncertain significance (54%), followed by the pathogenic variant (46%). Five patients in two families were described with two types of variants not previously described in the literature, with pathogenic behavior. Comparing the types of variants, the presence of a pathogenic variant was associated with higher levels of lysoGB3, lower values for alpha-GAL activity and higher frequency of symptoms related to FD. Conclusion: We characterized an extensive population of patients with FD variants with rich genetic, clinical and biomarker details. We believe that this study can help to better characterize the Brazilian population with FD and the most frequent types of variants.

RESUMO Introdução: A doença de Fabry (DF) é um erro inato do metabolismo caracterizado pela deficiência da enzima α-galactosidase A. O objetivo primário foi avaliar o perfil genético e fenotípico da doença de Fabry em hemodiálise. Métodos: Estudo de coorte observacional para determinar a incidência de variações genéticas e alterações fenotípicas para DF em pacientes em hemodiálise no Vale do Paraíba e Zona Leste de São Paulo. O teste genético para o gene GLA foi realizado para homens e mulheres em todos os pacientes das clínicas de hemodiálise maiores de 12 anos entre janeiro de 2016 a dezembro de 2019 como protocolo de rastreio. Resultados: Os casos foram provenientes de exames de triagem do caso índice entre pacientes portadores de doença renal crônica, resultando em 17 famílias e totalizando 82 pacientes em estudo. A classificação da variante mais prevalente foi a de significado incerto (54%), seguida da variante patogênica (46%). Foram descritos 5 pacientes em duas famílias com dois tipos de variantes ainda não previamente descritos na literatura com comportamento patogênico. Na comparação entre os tipos de variantes, a presença de variante patogênica foi associada a maiores níveis de lysoGB3, menores valores da atividade da alfa-GAL e maior frequência de sintomas relativos à DF. Conclusão: Caracterizamos uma extensa população de pacientes com variantes para DF com riqueza de detalhes de genética, clínica e de biomarcadores. Acreditamos que este estudo possa auxiliar na melhor caracterização da população brasileira com DF e nos tipos mais frequentes de variantes.

Hipopotasemia no medicamentosa como biomarcador de nefropatía crónica temprana en adultos del sur de Honduras / Non-drug Hypokalemia as Biomarker of Early Chronic Kidney Disease in Adults from Southern Honduras

Introducción: La hipopotasemia es un trastorno hidroelectrolítico frecuente, asociado a enfermedades sistémicas y multifactoriales, cuya forma aguda puede complicarse y causar la muerte, pero en su presentación crónica puede ser un marcador de nefropatía. Objetivo: Caracterizar el perfil del paciente con hipopotasemia no medicamentosa atendidos de emergencia. Métodos: Se revisaron los registros de pacientes mayores de 18 años con diagnóstico de hipopotasemia, ingresados en el hospital en el período de junio 2018 a diciembre de 2019. Se colectaron datos demográficos, antecedentes médicos y evolución postratamiento. Se comparó con 108 pacientes sin hipopotasemia atendidos en el período de estudio. Resultados: Se encontraron 87 casos con edad media de 38,5 años. El 90,8 por ciento eran hombres menores de 50 años, de oficio agricultor (29,9 por ciento), con historia de exposición a plaguicidas y a altas temperaturas ambientales. La mayoría de ellos no tenía historia de enfermedad cardiometabólicas o renal previa. El 48,3 por ciento de todos los pacientes con hipopotasemia (n = 42) tenía creatinina mayor a 1,2 mg/dL y 63 por ciento tenía hiponatremia. La hipopotasemia fue moderada en 39 por ciento y severa en 12 por ciento, los hombres 4,7 veces más afectados que las mujeres. Respecto al grupo sin hipopotasemia y creatinina anormal, tenían mayor frecuencia de enfermedad crónica (92,5 por ciento versus 8 por ciento). Conclusiones: Se encontró hipopotasemia no medicamentosa en varones agricultores, sin enfermedad crónica, pero con datos de nefropatía temprana e hiponatremia, se sugirió la posibilidad de nefropatía mesoamericana. Debe establecerse una alerta epidemiológica regional y un programa de prevención y control(AU)

Introduction: Hypokalemia is a frequent hydroelectrolytic disorder, associated with systemic and multifactorial diseases, whose acute form can be complicated and cause death, but in its chronic presentation it can be a marker of nephropathy. Objective: To characterize the profile of the patient with non-drug hypokalemia seen in an emergency. Methods: The records of patients older than 18 years diagnosed with hypokalemia, admitted to the hospital from June 2018 to December 2019, were reviewed. Demographic data, medical history, and post-treatment evolution were collected. It was compared with 108 patients without hypokalemia seen in the same period. Results: 87 cases with mean age of 38.5 years were studied. 90.8% were men under 50 years of age, who worked as farmers (29.9percent), with history of exposure to pesticides and high ambient temperatures. Most of them had no history of previous cardiometabolic or renal disease. 48.3percent of all patients with hypokalemia (n = 42) had creatinine higher than 1.2 mg/dL and 63percent had hyponatremia. Hypokalemia was moderate in 39% and severe in 12percent, and it was found that men were affected 4.7 times more than women. Regarding the group without hypokalemia and abnormal creatinine, they had higher frequency of chronic disease (92.5percent versus 8percent). Conclusions: Non-drug hypokalemia was found in male farmers, without chronic disease, but with evidence of early nephropathy and hyponatremia. The possibility of Mesoamerican nephropathy was suggested. A regional epidemiological alert and a prevention and control program should be established(AU)

Inteligencia emocional y calidad de vida en pacientes con insuficiencia renal crónica en hemodiálisis de un hospital de la ciudad del Cusco

Contexto: la investigación busca determinar la relación entre la inteligencia emocional y la calidad de vida en pacientes con insuficiencia renal crónica que reciben tratamiento de hemodiálisis de un hospital de la ciudad del Cusco, considerando el riesgo de la enfermedad para el logro de una mejor vida y los recursos existentes en la psicología de la salud. Metodología: el estudio se ubica en un nivel básico con un alcance correlacional y un diseño no experimental-transversal. Se incluyeron 96 pacientes diagnosticados con insuficiencia renal crónica que asistían a hemodiálisis y que fueron evaluados con el inventario emocional BarOn y el cuestionario KDQOL SF-36 para la calidad de vida. Los datos de identificación de los pacientes fueron obtenidos de las fichas de registro utilizadas, previo consentimiento informado de los evaluados. Posteriormente, para el análisis de datos descriptivos e inferenciales, se emplearon frecuencias y porcentajes; además de estadísticos de asociación, como el tau-b de Kendall, chi cuadrado y d de Somers. Resultados: la relación para inteligencia emocional y calidad de vida muestra un valor de p < 0,05, mediante la prueba de chi cuadrado; el estadístico tau-b de Kendall = 0,340 explica la dirección positiva de la relación e intensidad moderada de la asociación; el estadístico d de Somers = 0,339 ratifica que la inteligencia emocional en general mejora la calidad de vida de los pacientes en una intensidad media. También, se halló una relación significativa para cada una de las dimensiones de la inteligencia emocional con la calidad de vida. Conclusiones: existe relación directa entre inteligencia emocional y calidad de vida en pacientes con insuficiencia renal crónica en hemodiálisis.

Background: The research seeks to determine the relationship between emotional intelligence and quality of life in patients with chronic renal failure who receive hemodialysis treatment at a hospital in the city of Cusco, considering the risk of the disease for achieving a better life and the existing resources in health psychology. Methods: The study is located at a basic level, following a correlational scope and a non-experimental - cross-sectional design. 96 patients diagnosed with chronic renal failure attending hemodialysis were included, who were evaluated with the BarOn Emotional Inventory and the KDQOL SF-36 questionnaire for quality of life. The identification data of the patients were obtained from the registration forms used, with the prior informed consent of those evaluated. Subsequently, for the analysis of descriptive and inferential data, frequencies and percentages were used, in addition to association statistics such as Kendall's Tau-b, Chi square and Somers' D. Results: The relationship for emotional intelligence and quality of life shows a value of p < 0.05, using the Chi-square test, the Kendall Tau-b statistic = 0.340, explains the positive direction of the relationship and moderate intensity of the association. , Somers' D statistic=0.339 confirms that emotional intelligence in general improves the quality of life of patients at a medium intensity. A significant relationship was also found for each of the dimensions of emotional intelligence with quality of life. Conclusions: There is a direct relationship between emotional intelligence and quality of life in patients with chronic renal failure on hemodialysis.

Síndrome hemolítico urémico secundario a Streptococcus pneumoniae. Reporte de un caso clínico / Streptococcus pneumoniae associated hemolytic uremic syndrome. Case report

El síndrome hemolítico urémico secundario a Streptococcus pneumoniae (SHU-Sp) es una complicación poco frecuente de las enfermedades invasoras por S. pneumoniae. Presenta una alta morbimortalidad, con requerimiento de transfusiones de glóbulos rojos y plaquetas, terapia de sustitución de la función renal de inicio precoz y más prolongada, así como mayores complicaciones a largo plazo, comparado con las formas secundarias a infección entérica por Escherichia coli productora de toxina Shiga. Presentamos el caso clínico de una preescolar de dos años, previamente sana, vacunada con tres dosis de PCV13, que desarrolló una insuficiencia renal aguda, anemia hemolítica y plaquetopenia, en el contexto de una neumonía con empiema y bacteriemia por S. pneumoniae.

Streptococcus pneumoniae associated hemolytic uremic syndrome (Sp-HUS) is an uncommon complication of invasive pneumococcal infections. Patients with Sp-HUS have a higher mortality and long term morbidity than those due to HUS from Shiga toxin-producing Escherichia coli infections (STEC-HUS). They often require more red blood cells and platelet transfusions, and early initiation of renal substitution therapy, presenting a higher rate of arterial hypertension and chronic renal disease in the long term, compared to STEC-HUS. We report a healthy 2 year-old infant, vaccinated with three doses PCV13, that developed acute renal failure, hemolytic anemia and thrombocytopenia in the course of a complicated pneumococcal pneumonia with empyema and bacteremia.

Risk Factors for Liver Fibrosis in Diabetic Patients with End-stage Renal Disease

Introduction: Liver cirrhosis is the fourth cause of death in the world. Fatty liver disease is the most common cause of chronic liver disease (CKD) in most countries. Identifying risk factors for liver fibrosis in a population with end-stage renal disease (ESRD) may facilitate early diagnosis of this complication and allow the activation of follow-up protocols to reduce morbidity and mortality in these patients. Materials and methods: A cross-sectional and analytical study was carried out. Patients on hemodialysis, older than 18 years with a diagnosis of diabetes mellitus and ESRD were included. The hypotheses were contrasted through the chi-square test and Student's T-test, as appropriate. Statistical significance was established at a p-value = 0.05. Results: A prevalence of significant liver fibrosis and cirrhosis of 17% was found. Factors associated with liver fibrosis were a history of cerebrovascular disease, peripheral vascular disease, body mass index (BMI), total cholesterol, glycosylated hemoglobin, sodium, and aspartate aminotransferase (AST). No relationship was observed between the NAFLD (non-alcoholic fatty liver disease) score, the APRI index (AST to Platelet Ratio Index), and fibrosis. Conclusion: The prevalence of significant liver fibrosis in patients with diabetes and ESRD is similar to that reported in other populations of patients with diabetes. However, some factors, such as BMI, could behave differently and favor the appearance of liver injury with lower degrees of obesity than previously reported in the literature.

Introducción: la cirrosis hepática es la cuarta causa de muerte en el mundo. Actualmente, la enfermedad hepática por depósito de grasa es la causa más frecuente de hepatopatía crónica en la mayoría de los países. La identificación de factores de riesgo para la presencia de fibrosis hepática en una población con enfermedad renal crónica terminal puede facilitar el diagnóstico temprano de esta complicación y permitir la activación de protocolos de seguimiento para disminuir la morbimortalidad en estos pacientes. Metodología: se realizó un estudio de corte transversal y analítico. Se incluyeron pacientes en hemodiálisis, mayores de 18 años con diagnóstico de diabetes mellitus y de enfermedad renal crónica terminal. El contraste de hipótesis se realizó a través de la prueba de chi cuadrado y la T de Student, según correspondiera. La significación estadística se estableció con un valor p = 0,05. Resultados: se observó una prevalencia de fibrosis hepática significativa y cirrosis del 17%. Los factores asociados a la presencia de fibrosis hepática fueron los antecedentes de enfermedad cerebrovascular, la enfermedad vascular periférica, el índice de masa corporal (IMC), el colesterol total, la hemoglobina glicosilada, el sodio y el aspartato-aminotransferasa (AST). No se observó relación entre el puntaje de NAFLD (enfermedad del hígado graso no alcohólico), el índice APRI (AST to Platelet Ratio Index) y la presencia de fibrosis. Conclusión: la prevalencia de fibrosis hepática significativa en pacientes con diabetes y ERCT es similar a la reportada en otras poblaciones de pacientes con diabetes. Sin embargo, algunos factores, como el IMC, podrían comportarse de forma diferente y favorecer la aparición de lesión hepática con grados menores de obesidad a los reportados previamente en la literatura.

Homicidal poisoning with para-phenylenediamine hair dye: a case report

Paraphenylenediamine (PPD) is a widely used chemical in various hair dye formulations. Due to its cheap price and easy availability, it emerges as a major cause of suicidal poisoning. It carries high morbidity and mortality and does not have any specific antidote. We reported an unusual type of poisoning of a 44-year-old man with PPD and how he was managed with an excellent outcome.