Estenosis subglótica en granulomatosis con poliangitis (granulomatosis de Wegener): presentación de 4 casos / Subglottic stenosis in granulomatosis with polyangiitis (Wegener's granulomatosis): report of 4 cases

Introducción. La estenosis subglótica (ESG) en la granulomatosis con poliangitis (GPA) puede ser consecuencia de la enfermedad activa o de procesos inflamatorios repetitivos. Nuestro objetivo es describir las características clínicas y el tratamiento de los pacientes con ESG. Métodos. Estudio descriptivo retrospectivo de los casos diagnosticados durante el período comprendido entre el 1 de enero del 2000 y el 1 de junio del 2015. Resultados. Presentamos 4 casos; la ESG se presentó entre los 2 y 144 meses del diagnóstico de la GPA, los síntomas de presentación fueron disnea de esfuerzo y el estridor laríngeo, 3 desarrollaron ESG en ausencia de actividad sistémica. Dos sujetos con ESG grado i fueron tratados con dilatación traqueal, 2 casos presentaron reestenosis y en 3 casos fue necesario la realización de traqueostomía. Conclusión. La ESG presenta una alta morbilidad. La dilatación endoscópica proporciona alivio sintomático; sin embargo, suelen existir recidivas de la estenosis. La obstrucción grave de la vía aérea a menudo requiere de traqueostomía (AU)

Introduction. Subglottic stenosis (SGS) in granulomatosis with polyangiitis (GPA) may result from active disease or from chronic recurrent inflammation. The objective of the study was to describe the clinical features and treatment of patients with subglottic stenosis. Methods. We retrospectively reviewed the medical records of all patients with SGS due to GPA diagnosed at Rheumatology deparment between January 2000 and June 2015. Results. We present 4 cases of SGS at our department during a period of 15 years. The interval between the presentation of the GPA and SGS varied between 2 and 144 months. The leading symptoms of SGS were dyspnoea on exertion and stridor. Three patients presented SGS without evidence of systemic activity. Two patients presented SGS grade i and received tracheal dilatation; two recurred and three needed a tracheostomy due to severe airway-limiting stenosis. Conclusion. SGS presents high morbidity. Even though subglottic dilatation provides symptomatic relief, recurrences may present. Severe airway-limiting stenosis often requires tracheostomy (AU)

[Pulmonar pseudotumor in granulomatosis with polyangiitis (GPA). Pulmonary cancer and/or GPA? Diagnostic implications of pulmonary nodules]. / Pseudotumor pulmonar en granulomatosis con poliangeítis (GPA). ¿Cáncer pulmonar y/o GPA?, implicaciones diagnósticas de los nódulos pulmonares.

Granulomatosis with polyangiitis (GPA), formerly known as Wegener's granulomatosis, is a systemic necrotizing vasculitis, which affects small and medium sized blood vessels and is often associated with cytoplasmic anti-neutrophil cytoplasmic antibodies (ANCA). Inflammatory pseudotumor is a rare condition characterized by the appearance of a mass lesion that mimics a malignant tumor both clinically and on imaging studies, but that is thought to have an inflammatory/reactive pathogenesis. We report a patient with a GPA which was originally diagnosed as malignancy.

Subglottic stenosis in granulomatosis with polyangiitis (Wegener's granulomatosis): Report of 4 cases. / Estenosis subglótica en granulomatosis con poliangitis (granulomatosis de Wegener): presentación de 4 casos.

INTRODUCTION: Subglottic stenosis (SGS) in granulomatosis with polyangiitis (GPA) may result from active disease or from chronic recurrent inflammation. The objective of the study was to describe the clinical features and treatment of patients with subglottic stenosis. METHODS: We retrospectively reviewed the medical records of all patients with SGS due to GPA diagnosed at Rheumatology deparment between January 2000 and June 2015. RESULTS: We present 4 cases of SGS at our department during a period of 15 years. The interval between the presentation of the GPA and SGS varied between 2 and 144 months. The leading symptoms of SGS were dyspnoea on exertion and stridor. Three patients presented SGS without evidence of systemic activity. Two patients presented SGS grade i and received tracheal dilatation; two recurred and three needed a tracheostomy due to severe airway-limiting stenosis. CONCLUSION: SGS presents high morbidity. Even though subglottic dilatation provides symptomatic relief, recurrences may present. Severe airway-limiting stenosis often requires tracheostomy.

Medicamentos biocomparables en México: la postura del Colegio Mexicano de Reumatología, 2012 / Biosimilar drugs in Mexico: Position of the Mexican College of Rheumatology, 2012

Los medicamentos biotecnológicos (MBT) son moléculas complejas cuyo proceso de elaboración impide replicar con gran exactitud la sustancia original, por lo que no existe una equivalencia absoluta entre el fármaco original (innovador) y el biocomparable. Los MBT han probado su eficacia en diversas afecciones reumáticas, aunque su alto coste impide su utilización en muchos pacientes. Diversas patentes de medicamentos biotecnológicos han expirado o expirarán próximamente, detonando así el desarrollo de fármacos estructuralmente similares y probablemente con eficacia y seguridad comparable a los medicamentos innovadores, aunque estas características deben ser probadas. La Ley General de Salud Mexicana actual contempla el registro de estos medicamentos para su utilización en nuestro país. Este documento es una reflexión de miembros del Colegio Mexicano de Reumatología, farmacólogos e investigadores en epidemiología, en conjunción con nuestras autoridades sanitarias, sobre los estudios científicos necesarios de los biocomparables previos y posterior a su incursión en el mercado mexicano (AU)

Biotechnological drugs (BTDs) are complex molecules whose manufacturing process precludes the ability to identically reproduce the structure of the original product, and therefore there cannot be an absolute equivalence between the original (innovative) medication and its biosimilar counterpart. BTDs have been proven useful in the treatment of several rheumatic diseases, however their high cost has prevented their use in many patients. Several BTD patents have expired or are close to expire, triggering the development of structurally similar drugs with efficacy and safety profiles comparable to the innovative compound; however, these must be evaluated through evidence based medicine. The Mexican General Health Law contemplates the registry of these biosimilar drugs for their use in our country. This document is a forethought from members of the Mexican College of Rheumatology, pharmacologists, and epidemiologists, in accordance with Mexican health authorities regarding the necessary scientific evidence required to evaluate the efficacy and safety of biosimilar drugs before and after their arrival to the Mexican market (AU)

Biosimilar drugs in Mexico: position of the Mexican College of Rheumatology, 2012.

Biotechnological drugs (BTDs) are complex molecules whose manufacturing process precludes the ability to identically reproduce the structure of the original product, and therefore there cannot be an absolute equivalence between the original (innovative) medication and its biosimilar counterpart. BTDs have been proven useful in the treatment of several rheumatic diseases, however their high cost has prevented their use in many patients. Several BTD patents have expired or are close to expire, triggering the development of structurally similar drugs with efficacy and safety profiles comparable to the innovative compound; however, these must be evaluated through evidence based medicine. The Mexican General Health Law contemplates the registry of these biosimilar drugs for their use in our country. This document is a forethought from members of the Mexican College of Rheumatology, pharmacologists, and epidemiologists, in accordance with Mexican health authorities regarding the necessary scientific evidence required to evaluate the efficacy and safety of biosimilar drugs before and after their arrival to the Mexican market.