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Inicio Gastroenterología y Hepatología Estado actual de la CPRE. ¿Cómo se refleja la introducción de la colangiorres...
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Vol. 24. Issue 10.
Pages 483-488 (January 2001)
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Vol. 24. Issue 10.
Pages 483-488 (January 2001)
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Estado actual de la CPRE. ¿Cómo se refleja la introducción de la colangiorresonancia magnética?
Current Status Of Endoscopic Retrograde Cholangiopancreatography. What Is The Effect Of The Introduction Of Magnetic Resonance Cholangiography?
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R. Rueda Castañóna, M. Gutiérrez Ariasa, F. Jorquera Plazaa
a Sección de Aparato Digestivo aRadiodiagnóstico. Hospital de León
P. Linares Torres
,1
, S. Vivas Alegre1, J. Espinel Díez1, F. Muñoz Núñez1, A.B. Domínguez Carbajo1, C. Rodríguez Morejón1, A. Herrera Abian1, M.J. Fernández Gundín1, R. Villanueva Pavón1, J.L. Olcoz Goñi1
1 Sección de Aparato Digestivo Hospital de León
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Objetivo

Conocer la situación actual de la colangiopancreatografía retrógada endoscópica (CPRE) y la repercusión que la introducción de la colangiorresonancia magnética (CRM) ha tenido sobre esta. Evaluar el rendimiento diagnóstico de la CRM desde su inicio en la patología biliar obstructiva.

Material Y Métodos

Análisis retrospectivo de las CPRE realizadas desde enero de 1998 a diciembre de 2000, y las CRM realizadas por sospecha de enfermedad biliar obstructiva desde mayo de 1999 hasta diciembre de 2000. Cuando se realizaron ambas técnicas, se evaluó el rendimiento diagnóstico de la CRM.

Resultados

Se realizaron 927 CPRE (45,3% varones), con una edad media ± desviación estándar de 69,2 ± 14,6 años. Se realizó terapéutica en 688 ocasiones (77%), fundamentalmente esfinterotomía (69,9%) y colocación de prótesis de polietileno (21,8%) y autoexpandibles (9,9%). El número de CPRE por año fue de 261, 330 y 336 en 1998, 1999 y 2000, respectivamente, de las que un 76,6, un 80 y un 76,9% fueron CPRE con actuación terapéutica.

La CRM se practicó en 63 pacientes por sospecha de enfermedad biliar. La CRM no fue seguida de CPRE en 27 de 59 (45,8%) pacientes, siendo suficiente para el diagnóstico y evitando la realización de una CPRE. En los 35 pacientes a quienes realizaron ambas técnicas (CRM y CPRE), el rendimiento diagnóstico de la CRM frente a la CPRE fue: sensibilidad del 100%, especificidad del 50%, valor predictivo positivo del 87,1%, valor predictivo negativo del 100% y valor global del 89%. Se analizaron los casos responsables de la baja especificidad (todos por coledocolitiasis) y se encontró un desfase de tiempo importante entre la realización de CRM y de CPRE (límites, 7-35 días) en el que probablemente se solucionó la coledocolitiasis de forma espontánea.

Conclusiones

a) En contra de lo que cabría esperar, el número total de CPRE parece aumentar, con un elevado porcentaje de terapéutica endoscópica; b) la elevada sensibilidad diagnóstica de la CRM hace que sea la técnica ideal para evitar la CPRE diagnóstica y permitir así un mayor desarrollo de la vertiente terapéutica de la CPRE.

Aim

To determine the current status of endoscopic retrograde cholangiopancreatography (ERCP) and the effects of the introduction of magnetic resonance cholangiography (MRC) on ERCP and to evaluate the diagnostic yield of MRC since its introduction in obstructive biliary disease.

Material and Methods

We performed a retrospective analysis of the ERCP carried out between January 1998 and December 2000 and of the MRC performed for suspected obstructive biliary disease from May 1999 to December 2000. When both techniques were performed, the diagnostic yield of MRC was evaluated.

Results

We performed 927 ERCP. A total of 45.3% of the patients were men. Mean age was 69.2 ± 14.6 years. Treatment was performed on 688 occasions (77%), mainly sphincterotomy (69.9%) and placement of polyethylene (21.8%) or self-expanding (9.9%) prostheses. The number of ERCP performed each year was 261, 330 and 336 in 1998, 1999 and 2000, respectively; of these 76.6%, 80% and 76.9% were therapeutic. MRC was performed in 63 patients with suspected biliary disease. In 27 of 59 patients (45.8%) MRC was sufficient for diagnosis, avoiding the need for ERCP. In the 35 patients in whom both techniques (MRC and ERCP) were performed, the diagnostic yield of MRC compared with that of ERCP was: sensitivity 100%, specificity 50%, positive predictive value 87.1%, negative predictive value 100% and overall value 89%. The cases responsible for the low specificity (all due to choledocholithiases) were analyzed and a significant time lapse was found between the performance of MRC and ERCP (range: 7-35 days) during which choledocholithiasis probably resolved spontaneously.

Conclusions

a) Contrary to what could be expected, the number of ERCP seems to be increasing with a high percentage of endoscopic treatment; b) Because of its diagnostic sensitivity, MRC is the ideal technique for eliminating the need for diagnostic ERCP, thus allowing greater development of the therapeutic aspect of ERCP.

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Copyright © 2001. Elsevier España, S.L.. Todos los derechos reservados
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