Research advances on undifferentiated connective tissue disease in pregnant women / 中华全科医师杂志

Undifferentiated connective tissue disease (UCTD) has clinical and laboratory characteristics of connective tissue disorders, but it can not meet the diagnostic criteria of any specific disease. Pregnancy complicated with UCTD is one of the most common rheumatic diseases in women of childbearing age. UCTD will increase the risk of adverse events of pregnancy, such as spontaneous abortion, preeclampsia, fetal growth restriction, small for gestational age,recurrent implantation failure and so on. Pregnancy may lead to recurrence, aggravation and even serious complications of UCTD; multidisciplinary monitoring and appropriate treatment can improve the pregnancy outcome.

Patrones de tinción de anticuerpos antinucleares identificados por Inmunofluorescencia indirecta en pacientes con enfermedad del tejido conectivo / Antinuclear antibody staining patterns identified by indirect immunofluorescence in patients with connective tissue disease

Objetivos: Determinar la frecuencia de patrones de tinción de anticuerpos antinucleares identificados por inmunofluorescencia indirecta en pacientes con enfermedad del tejido conectivo en un hospital de nivel III de Lima, Perú. Material y métodos: Estudio de tipo cuantitativo, observacional y transversal, realizado en el Servicio de Inmunología del Hospital Nacional Arzobispo Loayza entre enero 2017 y junio 2017. Se revisaron 291 historias clínicas de pacientes con enfermedad del tejido conectivo y con detección de los patrones de tinción de anticuerpos antinucleares en suero, usando la técnica de Inmunofluorescencia Indirecta. Resultados: La frecuencia de estudios de anticuerpos antinucleares fue 322 (100 %), los patrones de anticuerpos antinucleares fueron PCNA6 (1,86%), patrón homogéneo 109(33,85%), patrón centromérico 34(10,56%), patrón moteado 135(41,93%), patrón citoplasmático 25(7,76%), patrón nucleolar 9(2,80%), patrón NUMA 1- Huso Acromático 3(0,93%) y patrón lisosoma 1(0,31%). La positividad de anticuerpos antinucleares se determinó mayormente en pacientes con lupus eritematoso sistémico 85(29.21%), esclerosis sistémica progresiva limitada (CREST) 34(11,68%), síndrome de Sjögren 77(26,46%), esclerodermia 15(5,15%), enfermedades mixtas del tejido conectivo72 (24,74%) y polimiositis 8 (2,75%). Conclusiones: Se encontró elevada frecuencia del patrón homogéneo y del patrón moteado en pacientes con enfermedad del tejido conectivo. El patrón homogéneo se asoció fuertemente al lupus eritematoso sistémico y el patrón moteado se asoció al síndrome de Sjögren. Por lo tanto, el método ANA-IFI puede reducir el gasto de un trabajo inmunológico detallado con una pérdida mínima en la exactitud diagnóstica de la enfermedad. (AU)

Objectives: To determine the antinuclear antibody staining patterns identified by indirect immunofluorescence in patients with connective tissue disease in hospital level III in Lima, Peru. Methods: Cross-sectional study performed at the Servicio de Inmunología of the Hospital Nacional Arzobispo Loayza between January and June 2017. We reviewed 291 clinical charts of patients with connective tissue disease who had determination of antinuclear antibodies by indirect immunofluorescence. Results: 322 determinations were analyzed; patterns detected were PCNA 6 (1.86%); homogeneous pattern 109(33.85%), centromeric pattern 34(10.56%), speckled pattern 135(41.93%), cytoplasmic pattern 25(7.76%), nucleolar pattern 9(2.80%), NUMA 1- Huso achromatic pattern 3(0.93%) and lysosomal pattern 1(0.31%). The spectrum of diseases in which antinuclear antibodies were looked for were systemic lupus 85(29.21%), limited progressive systemic sclerosis CREST) 34(11.68%), Sjögren´s syndrome 77(26.46%), scleroderma 15(5.15%), mixed connective tissue disorders 72 (24.74%) and polymyositis 8 (2.75%). Conclusions: A high frequency of homogeneous and speckled patterns were observed, the former associated with systemic lupus and the latter with Sjögren´s syndrome. Detection of antinuclear antibodies by indirect immunofluorescence is an accurate diagnostic method. (AU)

A Rare Case of Overlap Syndrome with Diffuse Systemic Sclerosis, Rheumatoid Arthritis, and Cutaneous Sarcoidosis

Overlap syndrome is defined as a disease entity that satisfies the classification criteria of at least two connective tissue diseases occurring concurrently or separately in a single patient. Here, we report a rare case of a 59-year-old woman with diffuse systemic sclerosis with lung involvement-rheumatoid arthritis overlap syndrome accompanied by cutaneous sarcoidosis. Although there is no consensus for the optimal treatment of overlap syndrome to date, this case of co-existing rheumatoid arthritis and systemic sclerosis with interstitial lung disease successfully responded to abatacept.