Athrogenic indexes: Useful markers for predicting metabolic syndrome in axial spondyloarthritis / Índices aterogénicos: marcadores útiles para predecir el síndrome metabólico en la espondiloartritis axial

Introduction: Metabolic syndrome is a pathological entity associated with a high risk of cardiovascular disease. Data regarding the frequency of this syndrome, lipid profile, and atherogenic index of plasma in patients with radiographic axial spondyloarthritis are scarce. We aim: to determine the prevalence of metabolic syndrome in patients with spondyloarthritis. We also aim to determine discriminative values of atherogenic indexes between patients with and without metabolic syndrome. Methods: We conducted a cross-sectional study including 51 patients meeting the ASAS 2009 criteria for radiographic axial spondyloarthritis. We measured the following parameters: triglyceride (TG), high-density lipoproteins (HDLc), low-density lipoprotein cholesterol (LDLc), and total cholesterol (TC). We calculated TC/HDLc, TG/HDLc, LDLc/HDLc ratios, and atherogenic index of plasma (LogTG/HDLc). Results: Metabolic syndrome was noted in 33% of cases. Patients with active disease had a higher body mass index (26.89±5.88 versus 23.63±4.47kg/m2, p=0.03), higher TG (1.41±0.64 versus 0.89±0.5mmol/L, p=0.05) and a lower HDLc level (1±0.28 versus 1.31±0.22mmol/L, p=0.01). However, the LogTG/HDLc and TG/HDLc were higher in patients under TNFα inhibitors. The ability of the TG/HDLc ratio and LogTG/HDLc to distinguish patients with or without metabolic syndrome were good at cut-offs of 1.33 and 0.22, respectively (specificity: 91.2% and sensitivity 70.6% for both ratios). Conclusion: Our study showed that metabolic syndrome is frequent in patients with axial spondyloarthritis. Atherogenic indexes can be used for predicting metabolic syndrome in these patients.(AU)

Introducción: El síndrome metabólico es una entidad patológica asociada a un alto riesgo de enfermedad cardiovascular. Los datos sobre la frecuencia de este síndrome, el perfil lipídico y el índice aterogénico del plasma en pacientes con espondiloartritis axial radiográfica son escasos. Nuestro objetivo es determinar la prevalencia del síndrome metabólico en pacientes con espondiloartritis. También pretendemos determinar valores discriminativos de índices aterogénicos entre pacientes con y sin síndrome metabólico. Métodos: Realizamos un estudio transversal que incluyó a 51 pacientes que cumplían los criterios ASAS 2009 para espondiloartritis axial radiográfica. Medimos los siguientes parámetros: triglicéridos (TG), lipoproteínas de alta densidad (HDLc), colesterol de lipoproteínas de baja densidad (LDLc) y colesterol total (CT). Calculamos las relaciones CT/HDLc, TG/HDLc, LDLc/HDLc y el índice aterogénico del plasma (LogTG/HDLc). Resultados: El síndrome metabólico se observó en el 33% de los casos. Los pacientes con enfermedad activa tenían un índice de masa corporal más alto (26,89±5,88 versus 23,63±4,47kg/m2; p=0,03), TG más altos (1,41±0,64 versus 0,89±0,5 mmol/L; p=0,05) y un nivel de HDLc más bajo (1±0,28 versus 1,31±0,22mmol/L; p=0,01). Sin embargo, el LogTG/HDLc y TG/HDLc fueron mayores en pacientes bajo inhibidores del TNFα. La capacidad de la relación TG/HDLc y LogTG/HDLc para distinguir pacientes con o sin síndrome metabólico fue buena en puntos de corte de 1,33 y 0,22, respectivamente (especificidad: 91,2% y sensibilidad: 70,6% para ambas relaciones). Conclusión: Nuestro estudio mostró que el síndrome metabólico es frecuente en pacientes con espondiloartritis axial. Los índices aterogénicos se pueden utilizar para predecir el síndrome metabólico en estos pacientes.(AU)

Athrogenic indexes: Useful markers for predicting metabolic syndrome in axial spondyloarthritis.

INTRODUCTION: Metabolic syndrome is a pathological entity associated with a high risk of cardiovascular disease. Data regarding the frequency of this syndrome, lipid profile, and atherogenic index of plasma in patients with radiographic axial spondyloarthritis are scarce. We aim to determine the prevalence of metabolic syndrome in patients with spondyloarthritis. We also aim to determine discriminative values of atherogenic indexes between patients with and without metabolic syndrome. METHODS: We conducted a cross-sectional study including 51 patients meeting the ASAS 2009 criteria for radiographic axial spondyloarthritis. We measured the following parameters: triglyceride (TG), high-density lipoproteins (HDLc), low-density lipoprotein cholesterol (LDLc), and total cholesterol (TC). We calculated TC/HDLc, TG/HDLc, LDLc/HDLc ratios, and atherogenic index of plasma (LogTG/HDLc). RESULTS: Metabolic syndrome was noted in 33% of cases. Patients with active disease had a higher body mass index (26.89±5.88 versus 23.63±4.47kg/m2, p=0.03), higher TG (1.41±0.64 versus 0.89±0.5mmol/L, p=0.05) and a lower HDLc level (1±0.28 versus 1.31±0.22mmol/L, p=0.01). However, the LogTG/HDLc and TG/HDLc were higher in patients under TNFα inhibitors. The ability of the TG/HDLc ratio and LogTG/HDLc to distinguish patients with or without metabolic syndrome were good at cut-offs of 1.33 and 0.22, respectively (specificity: 91.2% and sensitivity 70.6% for both ratios). CONCLUSION: Our study showed that metabolic syndrome is frequent in patients with axial spondyloarthritis. Atherogenic indexes can be used for predicting metabolic syndrome in these patients.