Ionizing diagnostic radiation exposure in patients with Crohn's disease: A retrospective study in a medium hospital and its predictive factors. / Exposición a radiación diagnóstica en pacientes con enfermedad de Crohn: estudio retrospectivo en un hospital medio y sus factores predictivos.

INTRODUCTION: It is estimated that diagnostic medical radiation exposure may be responsable for 0.5-2% of cancers worldwide. Because of the relapsing course of Crohn's disease (CD), these patients usually requiere multiple ionizing radiation test. OBJECTIVE: Stimating the total cumulative effective dose received by our CD patients and identifying the risk factors associated with the exposure to a cumulative effective dose due to the disease (CEED) > 50mSv. MATERIALS AND METHODS: Retrospective cohort study (2001-2014). POPULATION: patients with CD. Risk dose >50mSv. For calculating de cumulative effective dose and the CEED, all the ionizing test done were taken. For identifying predictive factors for receiving a CEDD >50mSv, an univariate and a multivariate logistic regression analyses were performed using a >50mSv dose as dependent variable. RESULTS: Of the 267 patients analyzed the 24.6% of them received a cumulative effective dose > 50mSv and the 15.2% a CEED>50mSv. In the multivariate analysis, the following variables were identified as independent predictors associated with a CEDD >50mSv: major surgery (OR= 2.1; IC95% [1.1-3.8]; p=.019) and severity (OR= 20.6; IC95% [4.5-94.8]; p<.01). CONCLUSIONS: Patients with CD are more at risk of receiving risk CEED, so it would be advisable to monitor the cumulative effective dose received to anticipate our intervention in order to avoid reaching that dose. The ultrasounds and abdominal resonance enterography are alternatives in these cases, although their accessibility is limited in some centers.

Exposición a radiación diagnóstica en pacientes con enfermedad de Crohn: estudio retrospectivo en un hospital medio y sus factores predictivos / Ionizing diagnostic radiation exposure in patients with Crohn's disease: a retrospective study in a medium hospital and its predictive factors

Introducción. La exposición a radiación ionizante procedente de pruebas médicas puede ser responsable del 0,5-2% de los cánceres a nivel mundial. Debido al curso crónico en brotes y al comienzo temprano de la enfermedad de Crohn (EC), estos pacientes requieren múltiples exploraciones radiológicas ionizantes. Objetivo. Estimar la cantidad de radiación ionizante que reciben nuestros pacientes con EC así como identificar aquellos factores de riesgo asociados a recibir una dosis de radiación debida a su enfermedad (DEED)>50mSv. Material y métodos. Estudio de cohorte retrospectivo (2001-2014). Población: pacientes con EC. Dosis de riesgo >50mSv. Para el cálculo de dosis efectiva total y DEED se recogieron las exploraciones radiológicas a las que fueron sometidos. Para la identificación de factores predictivos asociados a recibir una DEED > 50mSv se realizó mediante regresión logística uni- y multivariante utilizando la dosis >50mSv como variable dependiente. Resultados. De los 267 pacientes con EC analizados, el 24,6% recibieron una dosis efectiva total >50mSv y el 15,2% una DEED >50mSv. En el análisis multivariante las variables que de forma independiente se asociaron a recibir una DEED >50mSv fueron la cirugía mayor (OR= 2,1; IC95% [1,1-3,8]; p=0,019) y la gravedad (OR=20,1; IC95% [2,7-148,4]; p<0,001). Conclusiones. Los pacientes con EC están más expuestos a recibir una DEED de riesgo, por lo que sería conveniente monitorizar la DE recibida para anticipar nuestra actuación con el fin de evitar llegar a dicha dosis. La ecografía y la entero-RNM son alternativas a considerar en estos casos, aunque su accesibilidad está limitada en algunos centros (AU)

Introduction. It is estimated that diagnostic medical radiation exposure may be responsable for 0.5-2% of cancers worldwide. Because of the relapsing course of Crohn's disease (CD), these patients usually requiere multiple ionizing radiation test. Objective. Stimating the total cumulative effective dose received by our CD patients and identifying the risk factors associated with the exposure to a cumulative effective dose due to the disease (CEED) > 50mSv. Materials and methods. Retrospective cohort study (2001-2014). Population: patients with CD. Risk dose >50mSv. For calculating de cumulative effective dose and the CEED, all the ionizing test done were taken. For identifying predictive factors for receiving a CEDD >50mSv, an univariate and a multivariate logistic regression analyses were performed using a >50mSv dose as dependent variable. Results. Of the 267 patients analyzed the 24.6% of them received a cumulative effective dose > 50mSv and the 15.2% a CEED>50mSv. In the multivariate analysis, the following variables were identified as independent predictors associated with a CEDD >50mSv: major surgery (OR= 2.1; IC95% [1.1-3.8]; p=.019) and severity (OR= 20.6; IC95% [4.5-94.8]; p<.01). Conclusions. Patients with CD are more at risk of receiving risk CEED, so it would be advisable to monitor the cumulative effective dose received to anticipate our intervention in order to avoid reaching that dose. The ultrasounds and abdominal resonance enterography are alternatives in these cases, although their accessibility is limited in some centers (AU)