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OBJECTIVES Few data regarding follow-up of patients after COVID-19 discharge are available. We aim to describe the long-term outcomes of survivors of hospitalization for COVID-19 followed up first at an outpatient facility and subsequently by telephone. METHODS Observational prospective study conducted at a tertiary general hospital. Clinical and radiological progression was assessed and data recorded on a standardized reporting form. Patients were divided into three groups according to PaO2/FiO2 at hospitalization: PaO2/FiO2 > 300, PaO2/FiO2 300-200 and PaO2/FiO2 < 200. A logistic multivariate regression model was performed to identify factors associated with persistence of symptoms. RESULTS Facility follow-up: 302 patients were enrolled. Median follow-up was 45 days after discharge; 78% (228/294) of patients had COVID-19-related symptoms (53% asthenia, 56% respiratory symptoms) and 40% (122/302) had residual pulmonary radiographic lesions. PaO2/FiO2 300 was associated with resolution of chest radiographic lesions; OR = 0.56 (0.42 to 0.74), (p, Graphical abstract Image 1

OBJECTIVESCT findings of COVID-19 infected patients has been well described, but it it’s roll in depicting signs of fibrosis in critically ill patients remains unclear. To our knowledge, there are no radiopathological correlations of the pulmonary pathology. Exudative and proliferative diffuse alveolar damage (DAD) are the most commonly reported injury. Few studies describe fibrosis, the last phase of DAD. Our study correlates post-mortem chest US and CT findings of COVID-19 infected patients with the histopathology from biopsies taken of the lung. It focuses on the role of CT to depict fibrosis. METHODSThis is a prospective observational study of six consecutive deceased patients infected with COVID-19. Post-mortem chest CTs and US were performed within 24 hours of death. CT and US were used to obtain biopsies of different radiological patterns. Pre-mortem CT examinations were also retrospectively evaluated. RESULTSOn CT, all patients presented with extensive areas of consolidation and ground-glass opacities affecting most segments of the lung. Pleural effusion was present in all cases. Four of the patients showed signs of fibrosis. On US, subpleural consolidation, pleural thickening, and B-pattern were present.All patients showed different stages of DAD, mostly proliferative DAD. Four patients presented with fibrotic DAD, all of which had been admitted for over three weeks and correlated with the CT findings of fibrosis. CONCLUSIONIn our study, signs of fibrosis on CT show a histopathological correlation. CT may be useful to identify the group of COVID-infected patients that develop fibrosis as a marker of poor prognosis, in the late stage of the disease.

“Paisatges de proximitat” es desenvolupa a la Vall Salina de Cardona, un emplaçament amb un gran potencial de recuperació on destaca el recurs geològic de la sal i el seu passat insdustrial tèxtil i miner, el conjunt monumental del Castell de Cardona i el seu nucli urbà com a vila-mercat. Els últims anys, i des del tancament de les mines el 1990, l’activitat d’aquesta zona ha disminuït i nuclis com el de la Coromina, han patit la degradació del territori i el despoblament dels seus nuclis urbans. El projecte pren lloc a la Coromina. La proximitat d’aquest nucli amb Cardona no li ha permès assolir mai una identitat pròpia fent que hagi estat sempre en un segon pla. Així doncs i d’una manera clara i evident podem observar unes condicions més desfavorables, reflexades tan a nivell social com a nivell urbà. L’objectiu principal del projecte són els veïns de la Coromina. A partir de la consolidació del nucli i la implantació de noves xarxes d’espai públic de qualitat, el projecte busca afavorir i facilitar la renovació generacional del poble. A partir de la realització d’una recerca urbana del conjunt i de la detecció d’una série d’espais d’oportunitat (buits urbans, propietats edificades en mal estat, interiors d’illa, etc.) el projecte busca ser un primer exemple extrapolable a altres barris i nuclis del voltant. Aquesta consolidació de llocs actualment degradats, vol que de forma inclusiva incorporin tots els elements existents i es reinterpretin per tal de oferir nous espais per l’usuari.

Los ultrasonidos en el procesado de polímeros han tenido aplicaciones como la soldadura y dispersión. Recientemente, los ultrasonidos han sido introducidos como una novedosa técnica parael micromoldeado de polímeros, y su interés se debe a la necesidad de obtener micropiezasde polímeros en el campo de la medicina y electrónica. En el actual trabajo se ha estudiado micropiezasde ácido poliláctico cargadas con drogas antitumorales para generar un valor añadido en estos productos conformados por ultrasonidos. El ácido poliláctico (PLA) fue seleccionado como matriz polimérica debido a su biocompatibilidad,biodegradabilidad y obtención a partir de fuentes renovables. En una etapa previa del proyecto se han optimizado las condiciones de moldeado del PLA: fuerza, amplitud y tiempo. Las condiciones se analizan según: un correcto llenado del molde, una mínima degradación del polímero, la ausencia de microfisuras derivadas de fenómenos de cavitación, el mantenimiento o mejora de las propiedades mecánicas y térmicas de las piezas. La caracterización se realiza mediante cromatografía de permeación en gel (GPC), espectroscopia infrarroja (FTIR), difracción de rayos

Objective To retrospectively evaluate the efficacy and safety of percutaneous radiofrequency ablation (RFA) done to treat renal tumors in patients with high surgical risk or with the risk of developing multiple renal tumors in the medium term at our center over a period of 10 years. Material and methods Between 2005 and 2015, we used RFA to treat 89 T1a or T1b tumors in 87 patients (mean age, 73.7 ± 10.87 years) with high surgical risk. We excluded patients treated with radiofrequency and embolization or microwave ablation. The tumors treated were clear cell carcinomas (43.6%), papillary renal carcinomas (17.2%), chromophobe renal cell carcinomas (10.3%), cystic tumors (2.2%), and an angiomyolipoma (1.1%). The mean size of the tumors was 2.6 cm. Computed tomography and/or ultrasonography were used to guide the procedure. We analyzed the relation between the efficacy of the procedure and patients’ age, the type of needle, the source of the patients, the size and location of the tumor, and the number of sessions required to achieve ablation. We recorded all complications. Results The RFA procedure was completed in all patients. The mean follow-up period was 32.1 months. The efficacy was 93.7%. A single session was sufficient in 87.5% of patients; 8% required two sessions and 4.5% required three sessions. The only factor associated with worse efficacy was the size of the tumor ( p = 0.03). The rate of complications was 5.6%. Conclusions RFA is efficacious and safe, with results comparable to those reported in the literature.

Resumen Objetivo Evaluar retrospectivamente la eficacia y la seguridad de la radiofrecuencia (RF) percutanea para el tratamiento de tumores renales en pacientes de alto riesgo o con riesgo de padecer tumores renales multiples con un seguimiento a medio plazo a lo largo de un periodo de 10 anos. Material y metodos Entre 2005 y 2015, 87 pacientes (89 tumores) con una media de edad de 73,7 anos (desviacion estandar: 10,87) con riesgo quirurgico alto que presentaban tumores renales T1a y T1b fueron tratados mediante RF. Se excluyeron los pacientes sometidos a RF y embolizacion o ablacion con microondas. Se trataron carcinomas de celulas claras (43,6%), papilares (17,2%), cromofobos (10,3%), tumores quisticos (2,2%) y un angiomiolipoma (1,1%). El tamano medio de los tumores fue 2,6 cm. La tomografia computarizada y/o la ecografia se utilizaron para guiar el procedimiento. Se analizo la relacion entre la eficacia y la edad de los pacientes, el tipo de aguja, el origen de los pacientes, el tamano y localizacion tumoral, y el numero de sesiones necesarias para ablacionar el tumor. Se registraron las complicaciones. Resultados La RF se pudo realizar a todos los pacientes. La media de seguimiento fue de 32,1 meses. La eficacia fue de un 93,7%. El 87,5% de los pacientes requirieron una sola sesion, el 8%, 2 sesiones y el 4,5%, 3 sesiones. El unico factor asociado a una menor eficacia fue el tamano del tumor (p = 0,03). La tasa de complicaciones fue del 5,6%. Conclusiones La RF es eficaz y segura, con resultados comparables a los referidos en la literatura especializada.

Introduction and objectives There is a paucity of information about the real benefit of colchicine administration in the first episode of acute idiopathic pericarditis (AIP). The main objective of the present study was to assess the real efficacy of colchicine in patients with AIP who did not receive corticosteroids. Methods Randomized multicenter open-label study. Patients with a first episode of AIP (not secondary to cardiac injury or connective tissue disease) were randomized into 2 groups: group A received conventional anti-inflammatory treatment plus colchicine for 3 months, and group B received conventional anti-inflammatory treatment only. None of the patients received corticosteroids. The primary endpoint was the appearance of recurrent episodes of pericarditis. The secondary endpoint was the time to first recurrence. Follow-up was extended to 24 months. Results A total of 110 patients (83.6% men, age 44 ± 18.3 years) were randomized to group A (n = 59) and group B (n = 51). No differences were found in baseline demographics or in the clinical features of the index episode or in the type of anti-inflammatory treatment administered in both groups. The follow-up was completed by 102 patients (92.7%). No differences were found in the rate of recurrent pericarditis between groups (12 patients [10.9%]; group A vs group B, 13.5% vs 7.8%; P = .34). The time to first recurrence (group A vs group B, 9.6 ± 9.0 vs 8.3 ± 10.5 months; P = .80) did not differ between groups. Conclusions Among patients with a first episode of AIP who had not received corticosteroids, the addition of colchicine to conventional anti-inflammatory treatment does not seem to reduce the recurrence rate. Clinical trial registration: URL: https://www.clinicaltrialsregister.eu . Identifier: EudraCT 2009-011258-16

Life-threatening hemoptysis is a severe condition that requires rapid diagnosis and treatment. One of the treatments of choice is embolization. The initial assessment aims to locate the origin and cause of bleeding. The technological advance of the development of multidetector computed tomography (MDCT) has changed the management of patients with life-threatening hemoptysis. MDCT angiography makes it possible to evaluate the cause of bleeding and locate the vessels involved both rapidly and noninvasively; it is particularly useful for detecting ectopic bronchial arteries, nonbronchial systemic arteries, and pulmonary pseudoaneurysms. Performing MDCT angiography systematically before embolization enables better treatment planning. In this article, we review the pathophysiology and causes of life-threatening hemoptysis (including cryptogenic hemoptysis) and the MDCT angiography technique, and we review how to systematically evaluate the images (lung parenchyma, airways, and vascular structures).

Life-threatening hemoptysis is a severe condition that requires rapid diagnosis and treatment. One of the treatments of choice is embolization. The initial assessment aims to locate the origin and cause of bleeding. The technological advance of the development of multidetector computed tomography (MDCT) has changed the management of patients with life-threatening hemoptysis. MDCT angiography makes it possible to evaluate the cause of bleeding and locate the vessels involved both rapidly and noninvasively; it is particularly useful for detecting ectopic bronchial arteries, nonbronchial systemic arteries, and pulmonary pseudoaneurysms. Performing MDCT angiography systematically before embolization enables better treatment planning. In this article, we review the pathophysiology and causes of life-threatening hemoptysis (including cryptogenic hemoptysis) and the MDCT angiography technique, and we review how to systematically evaluate the images (lung parenchyma, airways, and vascular structures).

Radiological approach to cardiac tamponade Abstract Cardiac tamponade is a life-threatening medical emergency. The radiologist's role in the clinical management of patients with cardiac tamponade is usually minor and nearly always limited to the diagnostic process, and the condition is normally treated by other specialists. In this review, we aim to provide readers with the essential information to enable a complete diagnostic and therapeutic radiological approach. We emphasize US-guided percutaneous pericardial drainage; when performed correctly, this technique improves patients' symptoms immediately with minimal discomfort and a very low rate of complications.

Resumen La nueva ley de especialidades espanola ha corregido las limitaciones de la anterior sobre el tutor y sus funciones. Sin embargo sigue careciendo de una descripcion del papel del residente en su formacion. El Estatuto del Residente y el Programa de la Especialidad aportan mas informacion sobre este aspecto. La normativa establece que el residente no es un objeto pasivo en su formacion. Ademas de sus obligaciones laborales que incluyen la exclusividad laboral y el conocimiento y cumplimiento de los reglamentos y normas de funcionamiento de las instituciones en que esta integrado, el residente tiene el deber de formarse e ir adquiriendo progresivamente responsabilidades relativas a la especialidad. Esto incluye tambien una parte de formacion no asistencial, preparacion de sesiones, asistencia a comites, dominio de las nuevas tecnologias y la capacidad del residente de apoyarse en recursos on-line. Por otra parte, segun el Estatuto del Residente este es un miembro del servicio a todos los efectos, compartiendo los fines de este y de la institucion, estando obligado a ayudar al cumplimiento de sus objetivos. Y tambien a cumplir los objetivos de su programa de formacion y a tener una actitud activa en el aprendizaje. El residente es tan responsable del resultado final de su formacion como los especialistas del servicio en que se forma.

Vasculitis is an inflammatory destructive process affecting blood vessels. Pulmonary vasculitis may be secondary to other conditions or constitute a primary, and in most cases idiopathic, disorder. Underlying conditions in the secondary vasculitides are infectious diseases, connective tissue diseases, malignancies, and hypersensitivity disorders. The most widely used approach to classifying the primary vasculitides is based on the size of the affected vessels (large, medium, small). Thoracic involvement is most commonly seen with primary idiopathic large-vessel vasculitides (Takayasu arteritis, giant cell arteritis, Behçet disease) and primary small-vessel antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitides (Wegener granulomatosis, microscopic polyangiitis, Churg-Strauss syndrome). The radiologic manifestations of primary pulmonary vasculitis are extremely variable and include vessel wall thickening, nodular or cavitary lesions, ground-glass opacities, and consolidations. Diffuse alveolar hemorrhage is a clinical syndrome that usually results from primary small-vessel vasculitis in the lungs. Although chest radiography is often the first imaging study performed in patients with pulmonary involvement by vasculitis, chest radiographs often fail to show the exact pattern and extent of thoracic involvement and CT is more useful in assessment of the thoracic findings. The pulmonary primary vasculitides are rare disorders, and their diagnoses are among the most demanding challenges in medicine because their signs and symptoms are nonspecific and overlap with those of infections, connective tissue diseases, and malignancies; thus, diagnosis of vasculitis relies on recognition of characteristic combinations of particular clinical, radiologic, laboratory, and histopathologic features.

Cardiac tamponade is a life-threatening medical emergency. The radiologist's role in the clinical management of patients with cardiac tamponade is usually minor and nearly always limited to the diagnostic process, and the condition is normally treated by other specialists. In this review, we aim to provide readers with the essential information to enable a complete diagnostic and therapeutic radiological approach. We emphasize US-guided percutaneous pericardial drainage; when performed correctly, this technique improves patients' symptoms immediately with minimal discomfort and a very low rate of complications.

Background— Possible changes in the incidence and outcome of cardiac rupture in patients with ST-elevation myocardial infarction over a long period of time have not been investigated. Methods and Results— The incidence of cardiac rupture in ST-elevation myocardial infarction patients and its mortality rate were investigated during a 30-year period divided into 5 intervals (1977 to 1982, 1983 to 1988, 1989 to 1994, 1995 to 2000, and 2001 to 2006). Of a total of 6678 consecutive patients, 425 experienced a free wall rupture (280 with cardiac tamponade: 227 with electromechanical dissociation and 53 with hypotension) or a septal rupture (145). After the exclusion of referrals from other centers (n=44), the incidence of definite cardiac rupture (septal rupture, anatomic evidence of free wall rupture, or electromechanical dissociation) declined progressively (6.2% in 1977 to 1982 to 3.2% in 2001 to 2006; P P P P P P P P P P Conclusion— The decline in the incidence in cardiac rupture and its rate of death over the last 30 years appears to be associated with the increasing use of reperfusion strategies and adjunct medical therapy.

Voiding urosonography (VUS) has proved to be a reliable method for the study of vesicoureteric reflux (VUR). Early reports considered it inadequate for imaging the male urethra. To determine the usefulness of contrast-enhanced VUS for the study of the urethra. A total of 208 children aged 2 days to 10 years underwent VUS to confirm or exclude VUR for different reasons (n = 150) or for follow-up (n = 58). Patients with unconfirmed suspicion of VUR (99 boys and 51 girls) also underwent VUS for the study of the urethra. Examinations were performed using a harmonic imaging mode specific for contrast (Levovist) enhancement. We used a 6–4-MHz convex probe and a transperineal and/or a transpelvic approach. The neck of the bladder and the entire urethra were visualized in all patients (n = 150). The male urethra was considered normal in 95 boys (95.95%). We diagnosed posterior urethral valves in two patients, diverticulum of the prostatic utricle in one, and diverticulum of the anterior urethra in one. All abnormal cases were confirmed using conventional voiding cystourethrography. VUS can replace voiding cystourethrography as the method of choice for the initial study of suspected VUR in children.

To retrospectively evaluate the efficacy and safety of percutaneous radiofrequency ablation (RFA) done to treat renal tumors in patients with high surgical risk or with the risk of developing multiple renal tumors in the medium term at our center over a period of 10 years.Between 2005 and 2015, we used RFA to treat 89 T1a or T1b tumors in 87 patients (mean age, 73.7±10.87 years) with high surgical risk. We excluded patients treated with radiofrequency and embolization or microwave ablation. The tumors treated were clear cell carcinomas (43.6%), papillary renal carcinomas (17.2%), chromophobe renal cell carcinomas (10.3%), cystic tumors (2.2%), and an angiomyolipoma (1.1%). The mean size of the tumors was 2.6cm. Computed tomography and/or ultrasonography were used to guide the procedure. We analyzed the relation between the efficacy of the procedure and patients' age, the type of needle, the source of the patients, the size and location of the tumor, and the number of sessions required to achieve ablation. We recorded all complications.The RFA procedure was completed in all patients. The mean follow-up period was 32.1 months. The efficacy was 93.7%. A single session was sufficient in 87.5% of patients; 8% required two sessions and 4.5% required three sessions. The only factor associated with worse efficacy was the size of the tumor (p=0.03). The rate of complications was 5.6%.RFA is efficacious and safe, with results comparable to those reported in the literature.

Background— Low-pressure cardiac tamponade is a form of cardiac tamponade in which a comparatively low pericardial pressure results in cardiac compression because of low filling pressure. This syndrome is poorly characterized because only isolated cases have been reported. We conducted a study of its clinical and hemodynamic profiles. Methods and Results— From 1986 through 2004, we evaluated all patients at our institution with combined pericardiocentesis and cardiac catheterization. We identified those patients who fulfilled catheterization-based criteria of low-pressure cardiac tamponade and compared their clinical and catheterization data with those of patients with classic tamponade. A total of 1429 patients with pericarditis were evaluated, 279 of whom underwent combined pericardiocentesis and catheterization. Criteria of low-pressure cardiac tamponade were met in 29, whereas 114 had criteria of classic cardiac tamponade. Patients with low-pressure tamponade less frequently had clinical signs of tamponade, but the rate of constitutional symptoms, use of diuretics, and echocardiographic findings of tamponade were similar in both groups. Patients with low-pressure tamponade showed a significant increase in cardiac output after pericardiocentesis, but they usually had less severe cardiac tamponade compared with patients with classic tamponade. Prognosis was related mainly to the underlying disease. Conclusions— Low-pressure cardiac tamponade was identified in 20% of patients with catheterization-based criteria of tamponade. Clinical recognition may be difficult because of the absence of typical physical findings of tamponade in most patients. Although some patients are critically ill, most show a stable clinical condition. However, these patients obtain a clear benefit from pericardiocentesis.

Life-threatening hemoptysis is a severe condition that requires rapid diagnosis and treatment. One of the treatments of choice is embolization. The initial assessment aims to locate the origin and cause of bleeding. The technological advance of the development of multidetector computed tomography (MDCT) has changed the management of patients with life-threatening hemoptysis. MDCT angiography makes it possible to evaluate the cause of bleeding and locate the vessels involved both rapidly and noninvasively; it is particularly useful for detecting ectopic bronchial arteries, nonbronchial systemic arteries, and pulmonary pseudoaneurysms. Performing MDCT angiography systematically before embolization enables better treatment planning. In this article, we review the pathophysiology and causes of life-threatening hemoptysis (including cryptogenic hemoptysis) and the MDCT angiography technique, and we review how to systematically evaluate the images (lung parenchyma, airways, and vascular structures).