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1.
Rev. chil. enferm. respir ; 36(4): 254-259, dic. 2020. ilus, tab
Article in Spanish | LILACS | ID: biblio-1388123

ABSTRACT

INTRODUCCIÓN: La manifestación extramuscular de las miopatías inflamatorias idiopáticas (MII) es la enfermedad pulmonar intersticial (EPI) y el diagnóstico se basa en autoanticuerpos séricos. Los nuevos anticuerpos específicos y asociados a MII han ayudado a identificar nuevas entidades clínicas en el espectro de MII. El objetivo de este estudio es evaluar la contribución diagnóstica de un panel de anticuerpos de miositis (PM) en una cohorte de pacientes chilenos con EPI sin una enfermedad del tejido conectivo (ETC) definitiva. MATERIALES Y MÉTODOS: A partir de enero de 2017 se realizó un panel de miositis a 111 pacientes consecutivos con EPI y sospecha de ETC, pero sin un diagnóstico definitivo a través de otra herramienta diagnóstica, en el programa de Pulmón-Reumatológico del Instituto Nacional del Tórax, Santiago, Chile. Se compararon las características basales clínicas y serológicas de los pacientes que se asociaban más frecuentemente a la probabilidad de tener un panel positivo. RESULTADOS: El PM fue positivo en 56 de 111 pacientes. El síndrome antisintetasa (SAS) fue el diagnóstico más frecuente. Los anticuerpos más frecuentes fueron Ro-52, PM / Scl-75 y Ku. Las variables más frecuentes en el grupo PM(+) fueron la presencia del Raynaud, miositis, manos de mecánico, los anticuerpos Ro y La positivos, la presencia de un patrón combinado de neumonía intersticial inespecífica y neumonía organizada en la tomografía computarizada de tórax. CONCLUSIONES: la incorporación del PM nos ha ayudado a mejorar nuestra precisión diagnóstica en pacientes con EPI / ETC. Presentamos elementos clínicos y serológicos que perfeccionan el rendimiento de la prueba.


INTRODUCTION: The most common extramuscular manifestation of the idiopathic inflammatory myopathies (IIM) is interstitial lung disease (ILD) and the diagnosis is based on serum autoantibodies. The new specific and associated antibodies to IIM have helped to identify new clinical entities in the spectrum of IIM. The objective of this study is to evaluate the diagnostic contribution of a myositis antibodies panel (MP) in a cohort of Chilean patients with ILD without a definitive connective tissue disease (CTD). MATERIALS AND METHODS: Starting on January 2017 we performed a MP to 111 consecutive patients with ILD and suspected CTD but without a definitive diagnosis through another diagnostic tools in the Lung-Rheumatological Program at the "Instituto Nacional del Tórax", Santiago, Chile. The clinical and serological baseline characteristics of the patients that were most frequently associated with the probability of having a positive panel were compared. RESULTS: The MP was positive in 56 of 111 patients. Anti synthetase syndrome (ASS) was the most prevalent diagnosis. The most frequent antibodies were Ro-52, PM/Scl-75 and Ku. The most frequent variables in the positive MP group were the presence of Raynaud's phenomenon, myositis, mechanic's hands, positive Ro and La antibodies and the presence of combined pattern of nonspecific interstitial pneumonia and organizing pneumonia in chest computed tomography scan. CONCLUSIONS: The incorporation of the MP has helped us to improve our diagnostic precision of patients with CTD/ILD. We present clinical and serological elements that refine the performance of the test.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Autoantibodies/analysis , Lung Diseases, Interstitial/diagnosis , Myositis/diagnosis , Prospective Studies , Lung Diseases, Interstitial/immunology , Connective Tissue Diseases/diagnosis , Connective Tissue Diseases/immunology , Myositis/immunology
2.
Rev. méd. Chile ; 148(11)nov. 2020.
Article in Spanish | LILACS | ID: biblio-1389240

ABSTRACT

Giant cell arteritis (GCA) is a primary granulomatous systemic vasculitis involving the aorta and its main branches that affects people aged over 50 years with a genetic predisposition. Its main phenotypes are cranial and extracranial involvement, with or without symptoms of polymyalgia rheumatica. These phenotypes can overlap. The extracranial form can be oligosymptomatic and must be sought directly. The main complications of the disease are ischemia of essential territories such as the optic nerve or cerebral circulation, and aneurysmal dilations of the aorta and its large branches. Clinicians must be aware of all the presentation forms of the disease, to start a timely treatment and avoid potentially serious or fatal consequences. To date, the diagnosis of GCA is based on clinical and pathological criteria, with the temporal artery biopsy as the "gold standard" for diagnosis, although its sensitivity is variable. This can lead to an underdiagnosis in patients with negative biopsies or predominant extra-cranial symptoms. The emergence of new and valuable imaging tools substantially improved the timely diagnosis, mainly in subclinical and oligosymptomatic forms. Among them we highlight ultrasonography of the temporal and axillary arteries, Computed Tomography Angiography, Magnetic Resonance Angiography, and PET-CT. These imaging techniques are complementary, and their use is highly recommended. GCA treatment is based on steroidal therapy, often associated with a corticosteroid-sparing immunosuppressive agent. The follow-up is eminently clinical.


Subject(s)
Aged , Humans , Polymyalgia Rheumatica , Giant Cell Arteritis , Giant Cell Arteritis/diagnosis , Giant Cell Arteritis/drug therapy , Angiography , Tomography, X-Ray Computed , Positron Emission Tomography Computed Tomography
3.
Rev. chil. enferm. respir ; 35(4): 278-281, dic. 2019. tab
Article in Spanish | LILACS | ID: biblio-1092707

ABSTRACT

Las Enfermedades del Tejido Conectivo (ETC) comprenden un grupo heterogéneo de patologías multisistémicas de origen autoinmune. La Enfermedad pulmonar intersticial (EPI) asociada a ETC (EPI-ETC) es frecuente y empeora el pronóstico de la ETC. Las EPI-ETC representan aproximadamente 15-30% del total las EPI y se presentan con las mismas formas histopatológicas y radiológicas descritas para las EPI idiopáticas. Esto pone en evidencia la importancia de incorporar en forma rutinaria a reumatología en el comité multidisciplinario para el diagnóstico y manejo de las EPI.


Connective Tissue Diseases (CTD) comprise a heterogeneous group of multisystemic pathologies of autoimmune origin. Interstitial lung disease (ILD) associated with CTD (CTD-ILD) is common and and it worsens the prognosis of CTD. CTD-ILD represent approximately 15-30% of the universe of ILD and have the same histopathological and radiological forms described for idiopathic ILD. This highlights the importance of routinely incorporate a rheumatologist into the multidisciplinary committee for the diagnosis and management of ILD.


Subject(s)
Humans , Rheumatic Diseases/complications , Connective Tissue Diseases/complications , Idiopathic Pulmonary Fibrosis/diagnosis , Idiopathic Pulmonary Fibrosis/immunology , Rheumatic Diseases/diagnosis , Connective Tissue Diseases/diagnosis
4.
Rev. chil. reumatol ; 31(4): 213-221, 2015. graf
Article in Spanish | LILACS | ID: lil-790579

ABSTRACT

Scleroderma is among the connective tissue diseases (CTD) with more pulmonary involvement. More than half of scleroderma patients have some kind of interstitial lung disease (ILD), and this is currently the leading cause of death due to the disease itself. The main risk factor for ILD is the autoantibodie profile, and the period of greatest risk of developing ILD is among the first 3-5 years of disease. The most common histopathological form is NSIP, but the histopathological subtype has no influence on prognosis or response to treatment. Given the fact that some ILD patients will remain stable and because of the lack of a really effective and risk free treatment, immunosuppressive therapy is generally reserved for patients with extensive and / or progressive disease. The main risk factors for progressive disease are pulmonary extent and functional impairment. With currently available therapies the more realistic goal is stabilization of lung disease. The most widely used immunosuppressive induction therapy is Cyclophosphamide (CYC), but there is enough evidence to support the use of Mycophenolate Mofetil (MMF). As maintenance therapy, options are MMF and Azathioprine. Periodic clinical and functional reassessment is of vital importance, to monitor functional progression and/or the response to immunosuppressive therapy...


La esclerodermia está entre las enfermedades del tejido conectivo (ETC) que con mayor frecuencia presentan enfermedad pulmonar difusa (EPD), y se encuentra en más de la mitad de los pacientes. Actualmente la EPD representa la principal causa de muerte atribuible a la propia enfermedad. El principal factor de riesgo es el perfil de autoanticuerpos, y el período de mayor riesgo de desarrollar EPD son los primeros tres a cinco años de enfermedad. La forma histopatológica más frecuente es neumonía intersticial no específica (NINE), pero el subtipo histopatológico no tiene mayor influencia en el pronóstico ni en la respuesta al tratamiento. Dada la existencia de pacientes con EPD intrínsecamente estable y a la ausencia de una terapia realmente efectiva y exenta de riesgos, la inmunosupresión se reserva en general para pacientes con enfermedad extensa y/o progresiva. Lo parámetros que mejor se han correlacionado con el riesgo de progresión son la extensión radiológica y el compromiso de la función pulmonar. Con las terapias actualmente disponibles, el objetivo más realista es la estabilización del compromiso pulmonar. El Inmunosupresor más utilizado para la terapia de inducción es ciclofosfamida (CYC), pero existe evidencia suficiente que avala el uso de micofenolato mofetil (MMF). Como terapia de mantención las principales opciones son azatioprina y MMF. La reevaluación clínica y funcional periódica es fundamental, para monitorizar la progresión y/o la respuesta al tratamiento inmunosupresor...


Subject(s)
Humans , Lung Diseases, Interstitial/diagnosis , Lung Diseases, Interstitial/therapy , Scleroderma, Systemic/complications , Lung Diseases, Interstitial/mortality , Scleroderma, Systemic/mortality , Immunosuppressive Agents/therapeutic use , Prognosis , Risk Factors , Survival Analysis
5.
Rev. chil. reumatol ; 31(4): 230-233, 2015. tab
Article in Spanish | LILACS | ID: lil-790581

ABSTRACT

Connective Tissue Diseases (CTD) can manifest as Interstitial lung disease (ILD). ILD is a common manifestation of Anti-synthetase syndrome (AS). The main pattern of ILD in AS is nonspecific interstitial pneumonia (NSIP) with or without elements of organizing pneumonia (OP). Other less common forms include usual interstitial pneumonia (UIP) and nonspecific forms. Objectives: Describe radiological and clinical profile of 18 patients with ILD due to AS, evaluated in Instituto Nacional del Torax (INT) between 2013 and 2015. Highlighting the importance of Myositis Panel in patients being evaluated for ILD. Methods: Review of clinical records and lung CT of 76 patients with ILD and suspected AS, seen at INT between august 2013 and July 2015. Results: The diagnosis of AS was made in 18 of 76 patients, with female predominance and mean age of 46.5 years . In most patients the diagnosis of AS and ILD was simultaneous. The most frequent AS antibody was Jo-1, followed by PL-12. Less than half had ANA (+). The predominant radiographic pattern was NSIP / OP. Half of the patients had myositis. Conclusions: AS should be suspected in patients under study for ILD, especially NSIP / OP, and may occur without myositis and with negative ANA. It is essential to have new immunological tests such as a Myositis Panel, which will allow us to diagnose AS with subtle clinical features and negative or inconclusive serology...


Las Enfermedades del tejido conectivo (ETC) se pueden manifestar como Enfermedad Pulmonar Difusa (EPD). El Síndrome Antisintetasas (SAS) con mucha frecuencia presenta EPD. La forma de expresión más frecuente en SAS es la neumonía intersticial no específica (NSIP) con o sin elementos de neumonía en organización (OP). Otras formas menos frecuentes son la neumonía intersticial usual (UIP) y formas inespecíficas. Objetivos: Describir el perfil clínico radiológico de 18 pacientes con EPD secundaria a SAS, atendidos en el Instituto Nacional del Tórax (INT) entre los años 2013 y 2015. Destacar la importancia del Panel de Miositis en pacientes con EPD en estudio. Métodos: Revisión de ficha clínica y TAC pulmonar de 76 pacientes con EPD y sospecha de SAS, atendidos en INT entre agosto 2013 y julio 2015. Resultados: En 18 de 76 pacientes se hizo el diagnóstico de SAS, predominio femenino, edad promedio 46,5 años. En la mayoría el diagnóstico reumatológico y pulmonar fue simultáneo, el anticuerpo antisintetasa más frecuente fue Jo-1, seguido de PL 12. Menos de la mitad tuvo ANA (+). El patrón radiológico predominante fue NSIP/OP. La mitad de los pacientes no presentaron miositis. Conclusiones: El SAS debe ser sospechado en el estudio de pacientes con EPD, especialmente NSIP/OP y se puede presentar sin miositis y ANA (-). Es indispensable contar con nuevos exámenes inmunológicos como el Panel de Miositis, que permite diagnosticar SAS con clínica sutil y serología habitual negativa o no concluyente...


Subject(s)
Humans , Male , Female , Middle Aged , Lung Diseases, Interstitial/pathology , Lung Diseases, Interstitial , Lung Diseases, Interstitial/etiology , Connective Tissue Diseases/complications , Myositis/complications
6.
Rev. chil. enferm. respir ; 29(1): 39-42, mar. 2013. ilus
Article in Spanish | LILACS | ID: lil-678048

ABSTRACT

El diagnóstico diferencial de nódulos pulmonares cavitados constituye un gran desafo en el cual, la clínica, la imagenología y los exámenes de laboratorio permiten una orientación etiológica en cutro grandes grupos: infecciosa, neoplásica, reumatológica y miscelánea. Presentamos el caso de una paciente gran fumadora y portadora de una diabetes mellitus descompensada, con nódulos pulmonares cavitados, en la cual el contexto clínico obligaba a plantear ciertas etiologías como las infecciosas y neoplásicas, pero cuya biopsia fue compatible con Granulomatosis con Poliangeítis (ex Granulomatosis de Wegener), sin una clínica ni exámenes de laboratorio concordantes con dicho hallazgo.


The differential diagnosis of cavitary pulmonary nodules is a great challenge, where the clinical context in addition to the image studies and laboratory tests are part of the key tools to guide the diagnostic process through 4 major etiological groups: infectious, neoplastic, rheumatologic and miscellaneous. We describe a case of a heavy smoker and complicated diabetic patient with cavitary pulmonary nodules, with a clinical context that induces certain etiologies such as infectious and neoplastic, but whose biopsy was compatible with Granulomatosis with polyangiitis (ex Wegener 's granulomatosis), without a clinical exam nor laboratory tests suggesting this finding.


Subject(s)
Humans , Female , Middle Aged , Lung Diseases/etiology , Granulomatosis with Polyangiitis/complications , Granulomatosis with Polyangiitis/diagnosis , Vasculitis/complications , Vasculitis/diagnosis , Diagnosis, Differential
7.
Rev. Méd. Clín. Condes ; 23(4): 433-444, jul. 2012. ilus, tab
Article in Spanish | LILACS | ID: biblio-1145258

ABSTRACT

Los Síndromes Dolorosos Regionales son muy frecuentes y de etiología múltiple. e debe distinguir si son de origen músculoesquelético o se trata de dolor referido a la zona dolorosa. Las pruebas de movilidad pasiva y activa permiten diferenciar el dolor articular del periarticular. Se debe descartar compromiso neurológico y la presencia de signos de enfermedad sistémica. En dolor de columna, es importante distinguir el origen mecánico del inflamatorio, cuyo enfrentamiento es muy diferente. El dolor mecánico es el más frecuente, generalmente autolimitado y no requiere estudios complementarios. En el hombro, lo más frecuente es la patología del manguito rotador, especialmente en mayores de 40 años, y el tratamiento principal incluye analgesia y fisioterapia precoz. En la rodilla, los trastornos periarticulares incluyen bursitis y tendinitis de distintas estructuras, y hay que considerar la osteonecrosis dentro del diagnóstico diferencial del dolor de rodilla del adulto mayor.


Regional pain syndromes are common and caused by multiple etiologies. We have to distinguish whether their origin is musculoskeletal or the pain is referred to the painful area. Passive and active mobility allows differentiate extra-articular joint pain from joint pain. It should be ruled out neurological involvement and signs of systemic disease. In back pain, it is important to distinguish mechanical pain from inflammatory pain, because the causes and approach are very different. Mechanical pain is the most common, usually self-limitted and requires no additional studies. Rotator cuff tendinitis is the most common cause of shoulder pain, especially in patients over 40 years old. Treatment includes analgesia and early physiotherapy. In the knee, extra-articular disorders include bursitis and tendinitis of different structures, and osteonecrosis must be considered in the differential diagnosis of knee pain in the elderly.


Subject(s)
Humans , Low Back Pain , Complex Regional Pain Syndromes/diagnosis , Complex Regional Pain Syndromes/epidemiology , Sciatica , Magnetic Resonance Spectroscopy , Neck Pain , Shoulder Pain , Radial Neuropathy
8.
Rev. chil. reumatol ; 27(4): 216-220, 2011. ilus, tab
Article in Spanish | LILACS | ID: lil-640592

ABSTRACT

La enfermedad de Behçet (EB) es una patología inflamatoria vascular, multisistémica y recurrente. El fenómeno subyacente es una perivasculitis que afecta el territorio arterial y venoso. La mayor prevalencia de la enfermedad se encuentra en el Oriente y cuenca del Mediterráneo, en la llamada “Ruta de la Seda”. La prevalencia en Chile es desconocida. Las manifestaciones clínicas más frecuentes son úlceras orales y genitales recurrentes, uveítis, artritis, compromiso de sistema nervioso y vascular. El compromiso de SNC (Neuro-Behçet) varía entre 5 por ciento y 13 por ciento, y se divide en dos tipos: Intra-axial o parenquimatoso, más frecuente, más grave, con lesiones inflamatorias en tronco del encéfalo, en unión meso-diencefálica y región pontobulbar. Puede extenderse hacia diencéfalo, bulbo y médula espinal. El compromiso hemisférico es menos frecuente. Extra-axial, que se presenta como trombosis de senos venosos, y aneurismas, estenosis y disección arterial. El tratamiento del Neuro-Behçet intra-axial se basa en esteroides en dosis altas asociados a inmunosupresores, entre ellos, y dependiendo de la severidad, Metotrexato, Azatioprina, Ciclofosfamida, Micofenolato, y Anti-TNFα en casos refractarios o severos.


The highest prevalence of the disease is found in the East and the Mediterranean basin, in the so called “Silk Road”. The prevalence in Chile is unknown. The most frequent clinical manifestations are recurrent oral and genital ulcers, uveitis, arthritis, and CNS involvement (Neuro-Behçet). Neurological disease varies between 5 percent and 13 percent, and it can be divided into two types: Intra-axial or parenchymatous: more frequent, more severe, with inflammatory lesions involving the brainstem, midbrain, diencephalon and pontobulbar regions. It may extend into the spinal cord. Involvement of the brain hemispheres is less common. Extra-axial: also called “Neurovasculo Behçet”, less common and with better prognosis. It can manifests as venous sinus thrombosis, and aneurysm, stenosis, or arterial dissection of intracerebral or extracranial arteries. Treatment of Intra-axial Neuro-Behçet is based on high-dose steroids associated with immunosuppressive agents like: Methotrexate, Azathioprine, Cyclophosphamide, Mycophenolate, and anti α-TNF in refractory or severe disease.


Subject(s)
Humans , Male , Adult , Nervous System Diseases/diagnosis , Behcet Syndrome/diagnosis , Diagnosis, Differential , Brain/pathology , Nervous System Diseases/drug therapy , Steroids/therapeutic use , Immunosuppressive Agents/therapeutic use , Behcet Syndrome/classification , Behcet Syndrome/drug therapy , Treatment Outcome , Brain Stem/injuries
9.
Rev. chil. reumatol ; 25(3): 119-122, 2009. ilus
Article in Spanish | LILACS | ID: lil-563798

ABSTRACT

La enfermedad antimembrana basal glomerular (anti-MBG) es una condición que se manifiesta clínicamente como glomerulonefritis rápidamente progresiva y hemorragia alveolar, también llamada Síndrome Riñón- Pulmón. Se asocia a la presencia de autoanticuerpos dirigidos contra el colágeno tipo IV de la membrana basal glomerular. Las vasculitis sistémicas asociadas a ANCA también pueden manifestarse como Síndrome Riñón-Pulmón, cuadro clínico a veces indistinguible de la enfermedad anti-MBG. La concomitancia de ANCA y anticuerpos anti-MBG en el Síndrome Riñón-Pulmón es del orden de un 30 por ciento, según distintos reportes de la literatura. El perfil clínico, el pronóstico y el rol fisiopatológico de cada anticuerpo en este grupo de pacientes todavía son materia de investigación. El mecanismo patogénico inicial parece ser el daño mediado por ANCA, que puede inducir la aparición de anticuerpos anti-MBG, los que perpetúan el daño en el glomérulo.


Anti-glomerular basement membrane (anti-MBG) disease is a condition that is manifested clinically as rapidly progressive glomerulonephritis and alveolar hemorrhage, also known as Pulmonary-Renal Syndrome. It is associated with the presence of autoantibodies directed against type IV collagen of the glomerular basement membrane. Systemic vasculitis associated with ANCA may also manifest as Pulmonary-Renal Syndrome, sometimes clinically indistinguishable from the anti-MBG disease.The concomitance of ANCA and anti-MBG antibodies in the Pulmonary-Renal Syndrome is about 30 percent, according to various reports in literature. The clinical profile, prognosis and physiopathologic roles of each antibody in this group of patients is still under investigation. The pathogenic mechanism appears to be the initial damage mediated by ANCA, which may induce the appearance of anti-MBG, those who perpetuate the glomerulus damage.


Subject(s)
Humans , Female , Middle Aged , Anti-Glomerular Basement Membrane Disease/complications , Anti-Glomerular Basement Membrane Disease/immunology , Lung Diseases/complications , Lung Diseases/immunology , Kidney Diseases/complications , Kidney Diseases/immunology , Antibodies, Antineutrophil Cytoplasmic , Kidney Glomerulus/immunology , Kidney Glomerulus/pathology , Lung/immunology , Lung/pathology , Syndrome
10.
Rev. chil. reumatol ; 23(3): 105-108, 2007. ilus
Article in Spanish | LILACS | ID: lil-481374

ABSTRACT

Lupus erythematosus is a multisystemic disease that compromises principally women in fertile age. The principal affected organs are kidney, SNC, bone marrow and serous membranes. Cardiovascular affection includes pericardium, conduction system, myocardium, valves and coronary arteries. The most frequent valve disease is Libman-Sacks endocarditis, although valvulitis or valve dysfunction can exist as well. The mitral valve is the most affected, followed by the aortic valve. The most frequent valve abnormality is slight to moderate aortic insufficiency, while serious insufficiency or valve disruption is very rare. A physical examination has limited efficacy in the diagnosis of valve disease. A high degree of suspicion associated with echocardiography helps to establish the diagnosis. If surgery is not needed, antiplatelet therapy is recommended for asymptomatic patients, and oral anticoagulation treatment is advised for those with valve disease and evidence of thromboembolic phenomena. Recurrence of the disease has been observed in biological grafts, which makes the use of mechanical prostheses advisable when valve replacement indication exists. The following case shows the clinical evolution of a female patient with a rare but very serious lupus erythematosus complication.


Subject(s)
Humans , Female , Heart Valve Diseases/etiology , Lupus Erythematosus, Systemic/complications
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