INTRODUCCIÓN La colangitis biliar primaria es una enfermedad colestásica crónica que se asocia frecuentemente a complicaciones, entre las que las que destacan la osteoporosis (OP), como forma clínica más frecuente de enfermedad metabólica ósea (EMO).
MÉTODOS Estudio observacional descriptivo (N=72), subestudio casos y controles pareados (edad, sexo, valor de densidad mineral ósea). Utilizando T-test pareado en medias de varianzas iguales, Wilcoxon pareado en desiguales y Chi-cuadrado o test exacto de Fisher para categóricas. Valor p <0,05 para dos colas fue considerado estadísticamente significativo.
RESULTADOS 58,4 años de media; 88,9% mujeres y 8,9 años de media del diagnóstico. Mayor prevalencia de OP que en población española (lumbar 32,1% vs 9,1% y cuello femoral 15,3% vs 1,3%, p<0,001), mayor osteopenia en cuello femoral (55,6% vs 39%, p=0,040) y sin diferencias en la prevalencia de fracturas respecto a estudios previos españoles de CBP (18,3% fracturas totales, 8,5% vertebrales y 15,5% no vertebrales).
Diferencias estadísticamente significativas en la presencia de fracturas en OP lumbar (totales 10,9% vs 40,9%; p=0,004, vertebrales <84,3% vs 18,2%; p=0,01 y no vertebrales 10,9% vs 27,3; p=0,04) y femoral (totales 17,5% vs 55,6%; p=0,01 y no vertebrales 15,9% vs 33,3%; p=0,04).
Diferencias significativas en la gravedad de la hepatopatía expresada como Child-Pugh B vs A y MELD>12 que se asociaron a fracturas totales (1,8% vs 18,8%; p=0,03), vertebrales (1,5% vs 42,9%; p=0,02), no vertebrales (1,7% vs 21,4%; p=0,02) y múltiples (50% vs 2,9%; p=0,010 y 50% vs 1,1%; p<0,001 respectivamente) y la OP en cuello femoral con MELD> 12 (3,2% vs 22,2%; p=0,02) y mayor valor elastográfíco (8,3+6,8 kPa vs 15,5+10,4 kPa; p=0,014).
Diferencias estadísticamente significativas en T-Score<- 1,5 lumbar y femoral con fracturas totales y valores FRAX de fractura osteoporótica mayor y de cadera. Las pacientes con CBP presentaron valores superiores de TNFα (29,2 vs 22,3pg/m; p=0,001), VSG (38,9 vs 15,4mm/h; p=0,001), fosfatemia (3,6 vs 3,2mg/dL; p=0,014) y klotho (31,5 vs 29pg/mL; p=0,006) y menores de FGF23 (5,91 vs 6,01pg/mL; p=0,001), IL-6 (2,1 vs 2,7pg/mL; p=0,044) y osteocalcina (19,2 vs 24,2ng/m; p=0,032).
CONCLUSIONES En este proyecto, hemos encontrado una mayor prevalencia de EMO (osteopenia, osteoporosis y/o fracturas) en pacientes con CBP, cuya patogenia parece deberse en parte a la gravedad de la hepatopatía. Estadios precoces de CBP presentaron valores superiores de TNF-α, VSG, fosfatemia y klotho y menores de osteocalcina, FGF23 e IL-6, sugiriendo un daño en la formación del remodelado óseo y un papel inflamatorio como causas posibles de EMO. Por todo ello, confirmamos la utilidad del T-score < -1,5 para estratificar el riesgo de EMO en la CBP.
METABOLIC BONE DISEASE IN PRIMARY BILIARY CHOLANGITIS (PBC): DESCRIPTIVE STUDY AND IMPLICATIONS OF NEW BONE REMODELING BIOMARKERS.
INTRODUCTION Primary biliary cholangitis is a chronic cholestatic disease frequently associated with systemic complications, including osteoporosis (OP), as the most common clinical form of metabolic bone disease.
METHODS Descriptive observational study (N = 72) and a substudy of cases and matched controls (age, sex, bone mineral density), using T-test paired in means of equal variances, Wilcoxon paired in unequal and Chi-square or Fisher's exact test for categorical. P value < 0.05 for two tails was considered statistically significant.
RESULTS 58.4 years average; 88.9% women and 8.9 years mean since diagnosis. Higher prevalence of OP than in general Spanish population (lumbar spine (LS) 32.1% vs. 9.1% and femoral neck (FN) 15.3% vs. 1.3%, p <0.001), increased FN osteopenia (55.6% vs. 39%, p=0.040) and no differences in the prevalence of fractures compared to previous studies of PBC (18.3% total fractures, 8.5% vertebral and 15.5% non-vertebral fractures). Significant differences in the presence of fractures in LS-OP (total 10.9% vs. 40.9%, p=0.004, vertebral <84.3% vs. 18.2%, p=0.01 and non-vertebral 10.9 % vs. 27.3, p = 0.04) and femoral OP (total 17.5% vs. 55.6%, p=0.01 and non-vertebral 15.9% vs. 33.3%, p=0.04).
Differences in the severity of liver disease expressed as Child-Pugh B vs. A and MELD >12 were associated with total fractures (1.8% vs. 18.8%, p=0.03), vertebral fractures (1.5%, p=0.02), non-vertebral (1.7% vs. 21.4%, p=0.02) and multiple (50% vs. 2.9%, p=0.010 and 50% vs. 1,1%; p<0,001; and FN-OP with MELD > 12 (3.2% vs. 22.2%, p=0.02) and higher elastographic value (8.3±6.8 kPa vs. 15.5±10.4 kPa, p=0.014). Differences in LS and FN T-score < -1.5 with total fractures and FRAX values of major osteoporotic fracture and hip fracture were observed.
Patients with PBC presented higher values of TNF-α (29.2 vs. 22.3pg/m, p=0.001), ESR (38.9 vs. 15.4 mm/h, p=0.001), phosphataemia (3.6 vs. 3.2mg/dL; p=0,014) and (p=0.001), and klotho (31.5 vs. 29 pg/mL, p=0.006) and lower FGF23 (5.91 vs. 6.01 pg/mL; p=0.001), IL-6 (2.1 pg / mL vs. 2.7pg / mL; p=0.044) and osteocalcin (19.2 vs. 24.2 ng/m, p=0.032).
CONCLUSIONS In this project, we found a higher prevalence of metabolic bone disease (osteopenia, osteoporosis and/or fractures) in patients with PBC whose pathogenesis seems to be due in part to the severity of liver disease. Early stages of PBC presented higher values of TNF-α, ESR, phosphataemia and klotho, and lower levels of osteocalcin, FGF23 and IL-6, suggesting a deterioration in bone remodeling and an inflammatory role as possible causes of metabolic bone disease. Therefore, we confirmed the usefulness of the T-score < -1.5 to stratify the metabolic bone disease risk in PBC. -1.5 to stratify the metabolic bone disease risk in PBC.
© 2001-2024 Fundación Dialnet · Todos los derechos reservados