Documento de consenso para la formación en ecografía en la especialidad de Nefrología

Ultrasound is an essential tool in the management of the nephrological patient allowing the diagnosis, monitoring and performance of kidney intervention. However, the usefulness of ultrasound in the hands of the nephrologist is not limited exclusively to the ultrasound study of the kidney. By ultrasound, the nephrologist can also optimize the management of arteriovenous fistula for hemodialysis, measure cardiovascular risk (mean intimate thickness), implant central catheters for ultrasound-guided HD, as well as the patient's volemia using basic cardiac ultrasound, ultrasound of the cava inferior vein and lungs.From the Working Group on Interventional Nephrology (GNDI) of the Spanish Society of Nephrology (SEN) we have prepared this consensus document that summarizes the main applications of ultrasound to Nephrology, including the necessary basic technical requirements, the framework normative and the level of training of nephrologists in this area. The objective of this work is to promote the inclusion of ultrasound, both diagnostic and interventional, in the usual clinical practice of the nephrologist and in the Nephrology Services portfolio with the final objective of offering diligent, efficient and comprehensive management to the nephrological patient.     

Perfil metabolómico diferenciador asociado a la condición de normoalbuminuria en la población hipertensa

Background and aimAlbuminuria is an indicator of sub-clinical organ damage and a marker of cardiovascular risk and renal disease. A percentage of hypertensive patients develop albuminuria despite being under chronic suppression of the renin-angiotensin system (RAS). We previously identified urinary metabolites associated with the development of albuminuria. In this study, we searched for metabolic alterations which reflect different levels within the condition of normoalbuminuria.Patients, materials and methodsUrine from 48 hypertensive patients under chronic RAS suppression was analysed. They were classified according to the albumin/creatinine ratio (ACR) into 3 groups: Normoalbuminuria (<10 mg/g); high-normal (10-30 mg/g in men, or 20-40 mg/g in women); and moderately high albuminuria (microalbuminuria, 30-200 mg/g or 40-300 mg/g, respectively). The metabolome was analysed by mass spectrometry and a correlation analysis was performed between altered metabolite levels and ACR.ResultsOxaloacetate, 3-ureidopropionate, guanidoacetate and malate show significant variation between the normo and micro groups. Additionally, these metabolites are able to differentiate between patients in the normo and high-normal range. A significant correlation between metabolites and ACR was found. Observed variations point to alterations in the energy metabolism already in patients with albuminuria in the high-normal range.ConclusionsThe association between the molecular panel consisting of 3-ureidopropionate, oxaloacetate, malate and guanidoacetate and different levels of albuminuria is confirmed. A metabolic fingerprint was also identified showing variations within the condition of normoalbuminuria allowing an earlier molecular stratification of patients.     

Arritmias ventriculares en superrespondedores a la terapia de resincronización cardiaca

Introduction and objectivesCardiac resynchronization therapy is associated with improved quality of life and reduced morbidity and mortality in patients with severe ventricular dysfunction and wide QRS. However, its role in the reduction of ventricular arrhythmias is more controversial.MethodsWe compared the incidence of ventricular arrhythmias in patients who were undergoing cardiac resynchronization therapy with an implantable cardioverter-defibrillator in terms of the degree of echocardiographic response to resynchronization. Patients were classified in 3 subgroups; super-responders, responders, and nonresponders.ResultsWe included 196 patients who were followed up for a median 30.1 months [interquartile range, 18.0-55.1 months]. We recorded the presence of ventricular arrhythmias in 37 patients (18.8%); 3 patients (5.9%) in the super-responder group had ventricular arrhythmias vs 14 (22.2%) among the responders and 20 (24.4%) in the group of nonresponders (P = .025). In multivariate analysis, the only independent predictors of the appearance of ventricular arrhythmias were secondary–prevention device implantation (odds ratio = 4.04; 95% confidence interval, 1.52-10.75; P = .005), absence of echocardiographic super-response (odds ratio = 3.81; 95% confidence interval, 1.04-13.93; P = 043), QRS >160 ms (odds ratio = 2.39; 95% confidence interval, 1.00-1.35; P = .049) and treatment with amiodarone (odds ratio = 2.47; 95% confidence interval, 1.03-5.91; P = .041).ConclusionsThe patients classified as super-responders to cardiac resynchronization therapy had a significant reduction in incidence of ventricular arrhythmias by comparison with the other patients. Despite this, arrhythmic episodes do not completely disappear in this subgroup.Full English text available from: www.revespcardiol.org/en     

Situación de la ecografía en la reumatología española 2012

ObjectiveTo know the situation of ultrasound in Spanish rheumatology.MethodsA National survey addressed to all rheumatology units in hospitals with at least 200 beds. The questionnaire studied: a) the availability and the model of the ultrasound equipment, b) the degree of training, c) the purpose and areas of ultrasound examination, d) the usefulness, and e) the relevance of ultrasound in the training of residents.Results169 units of the 234 surveyed physicians answered the questionnaire. The availability of ultrasound equipment was high (90%), 38.7% of rheumatologists use ultrasound, although half of the units had a rheumatologist especially dedicated to performing them. Training plans have enabled the incorporation of ultrasound, but there are areas that could be improved. The utility in routine clinical practice was scored at 7.8 (0-10), and ultrasound was integrated in the diagnostic and therapeutic decisions. There is a broad consensus on the need to include ultrasound in the training of residents. Administration is adding ultrasound to the portfolio of specialty services.ConclusionsIn just 15 years, ultrasound has become available in 90% of rheumatology units from being previously inexistent. Its use is extensive, integrated into clinical practice and linked to the decision making processes. Training plans have been effective, but areas for improvement were identified, and there is a broad consensus on the need to integrate ultrasound in residents’ training.     

Impacto pronóstico y factores predictores de la recuperación de la fracción de eyección en pacientes con miocardiopatía dilatada alcohólica

Introduction and objectives

Recovery of left ventricular ejection fraction (LVEF) has been described in alcoholic cardiomyopathy (ACM) after a period of alcohol withdrawal. Nevertheless, the prognostic impact of LVEF recovery in ACM and its determinants have not been studied. We sought to define the role of LVEF improvement in the long-term outcome of ACM and to identify predictors of LVEF recovery in these patients.

Realidad de la Reumatología en España y sus comunidades autónomas antes de la pandemia

ObjectivesTo determine the number of rheumatologists per 100,000 inhabitants working in public or private centres in Spain as a whole, and by Autonomous Community and their distribution by age and sex.Material and methodCross-sectional study based on the information contained in the database of the Spanish Society of Rheumatology. Quality control was performed by contact (e-mail and telephone call) with the heads of the clinical services of each of the hospitals (public and private). The information analysed was the age, sex and place of work of active rheumatologists in February 2020. The rates of rheumatologists per 100,000 inhabitants were calculated from population data from the National Institute of Statistics.ResultsThe rate of rheumatology specialists per 100,000 inhabitants in Spain was estimated at 2.17. The percentage of women was 59.7%, with a higher female/male ratio at younger ages. The lowest proportion of specialists per 100,000 inhabitants was in the community of Valencia (1.6), and the highest in Cantabria (3.2).ConclusionsVariations were found in the rate of rheumatologists per 100,000 inhabitants among the Autonomous Communities. The distribution by age and sex showed a tendency towards female rheumatologists, especially in the younger age strata.     

Impacto de la vacunación de las embarazadas frente a la tosferina en las hospitalizaciones de menores de un año en un hospital de tercer nivel de Cataluña

IntroductionThe recommendation for pertussis vaccination in pregnancy was established in Catalonia in February 2014. The objective of this study was to compare the hospitalization rate for pertussis in children under one year of age before and after the implementation of the vaccination program.MethodsObservational and retrospective study of patients under one year of age admitted to hospital with a diagnosis of pertussis. The hospitalization rate of patients under one year of age of the period prior to the vaccination program (2008-2013) was compared with the period with vaccination program (2014-2019) in the total of children under one year of age and in 2 subgroups: children under 3 months and between 3-11 months.ResultsHospitalization rate was significantly lower in the period with vaccination program in children under one year of age and specifically in children under 3 months (2.43 vs. 4.72 per 1,000 person-years and 6.47 vs. 13.11 per 1,000 person-years, respectively). The rate ratios were: 0.51 (95% CI 0.36-0.73) for children under one year of age; 0.49 (95% CI 0.32-0.75) for those younger than 3 months and 0.56 (95% CI 0.30-1.03) for those with 3-11 months. No statistically significant differences were observed in the clinical severity between both periods.ConclusionThe introduction of the pertussis vaccination program in pregnancy was associated with a global lower hospitalization rate for pertussis in children under one year of age and specifically in those under 3 months of age.     

Valor de la ecografía con Doppler de poder en pacientes con artritis reumatoide en remisión clínica: ¿reclasificación de la actividad de la enfermedad?

Objectives

The aim of the present study was to describe the ultrasound (US) findings in patients with rheumatoid arthritis (RA) in clinical remission, and to evaluate the ability of power Doppler (PD) US to reclassify disease activity in these patients.

Frecuencia de sustituciones relevantes asociadas a resistencia en la región NS5A a elbasvir en el virus de la hepatitis C en pacientes con genotipo 1a en España

Resistance-associated substitutions (RASs) to the new HCV NS5A inhibitor elbasvir may limit its efficacy and lead to virological failure in HCV-GT1a-infected patients. There are no data outside clinical trials evaluating their prevalence and impact in grazoprevir/elbasvir in GT1a-infected patients in Spain. A multicentre cross-sectional study of 632 initial patients was conducted. In 13 of these patients, the sample could not be amplified or a consensus sequence by Sanger sequencing could not be performed. Ultimately, 617 HCV-G1a-infected individuals treated at 84 Spanish hospitals from the 17 autonomous communities plus the 2 autonomous cities of Spain were analysed. HCV population sequencing was used to identify RAS to elbasvir and the mutational pattern and drug sensitivity were confirmed by geno2pheno[HCV]. Viruses bearing RASs to elbasvir were present in 6.2% of HCV-G1a infected patients. The most common RASs were the Y93C/H/N and Q30E/H/R (2.4% and 2.3%, respectively). Only 3.4% of the identified RASs to elbasvir conferred reduced susceptibility to elbasvir by geno2pheno[HCV], which exclusively identified the positions Q30H/R (n = 7) and Y93C/H/N (n = 8) as single mutations and Q30H + Y93H (n = 4) and Q30R + Y93H (n = 2) as double mutations as the major RASs to elbasvir. A lower prevalence of RASs to elbasvir was observed in our HCV-G1a Spanish cohort than reported previously in clinical trials evaluating patients from the USA. This information may be essential to guide the implementation of grazoprevir/elbasvir in Spain and to manage G1a-infected patients.     

Impacto de la puntuación de calcio en la concordancia entre la tomografía computarizada con multidetectores y la coronariografía invasiva

Introduction and objectives

Multidetector computed tomography (MDCT) has been demonstrated as a feasible alternative to invasive coronary angiography (ICA). However, contradictory results have been reported regarding the effect of coronary artery calcium score (CS) on the diagnostic accuracy of MDCT. Our aim was to assess the agreement of MDCT and ICA and to evaluate the influence of CS on this agreement.

Evolución de la enfermedad neumocócica invasora y sus serotipos en la Comunidad de Madrid

Introduction

Streptococcus pneumoniae is an important cause of morbidity. Vaccination is the most effective measure to prevent it. The aim of this study is to analyse the evolution of invasive pneumococcal disease (IPD).

Riesgo de eventos tromboembólicos en función del manejo de la terapia anticoagulante y antiagregante en pacientes sometidos a colangiopancreatografía retrógrada endoscópica

Background and objectivesThe main clinical practice guidelines recommend adequate periprocedural withdrawal and reintroduction of antithrombotic drugs in case of invasive techniques. The main objective of this study was to assess whether, in patients receiving anticoagulant or antiplatelet therapy, the suppression or reduction of the pharmacological dose for the performance of endoscopic retrograde cholangiopancreatography (ERCP) implies a greater risk of thromboembolic events.Patients and methodsA prospective observational study was carried out, which included 644 ERCP performed with therapeutic intention during 2019 at the Reina Sofía University Hospital with follow-up during the 30 days after the endoscopic intervention.ResultsSix patients presented a thromboembolic event, finding no differences between the incorrect withdrawal/reintroduction of antithrombotic treatment and a higher proportion of thromboembolic or hemorrhagic events after the procedure (P > .05). The incidence of thrombotic events was significantly higher in patients treated with heparin or apixaban (P = .001), as well as with a history of atrial fibrillation (P = .05), rheumatic valve disease (P = .037) and recurrent pulmonary embolism (P = .035), this being also an independent risk factor. Likewise, the incidence of hemorrhage in the 30 days post-sphincterotomy was significantly lower in those with implantation of a biliary prosthesis (P = .04).ConclusionsInadequate periprocedural management of antithrombotic therapy is not associated with a significant increase in the incidence of thromboembolic events in the 30 days after ERCP. However, close follow-up and surveillance during the days after this is essential in those patients with a condition that significantly increases the risk of thrombosis.