2022, Número 1
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Rev Biomed 2022; 33 (1)
Utilidad del ultrasonido versus biopsia en el diagnóstico de metástasis a ganglio centinela en pacientes con cáncer de mama
Armas M, Brito-Núñez N
Idioma: Español
Referencias bibliográficas: 36
Paginas: 4-11
Archivo PDF: 116.96 Kb.
RESUMEN
Introducción. El ultrasonido del ganglio centinela puede ser útil en la
detección temprana de metástasis de mama.
Objetivo. Comparar la utilidad del ultrasonido
versus biopsia de ganglio centinela en el diagnóstico
de metástasis a ganglio centinela en pacientes con
cáncer de mama.
Materiales y Métodos. Se realizó un estudio
retrospectivo, observacional, comparativo y de corte
transversal en un grupo de 148 pacientes con cáncer
de mama atendidas en la clínica de prevención de la
Sociedad Anticancerosa de Venezuela enero 2018 y
diciembre 2020.
Resultados. Se encontró una mayor cantidad de
casos con metástasis ganglionar en aquellos con
edad mayor de 40 años (83.1%). El carcinoma
ductal infiltrante fue el tipo más frecuentemente
encontrado (83.8% [n=119],
p=0.3). La concordancia
diagnóstica del ultrasonido preoperatorio para el
diagnóstico correcto de un ganglio centinela fue de
0.28 que de acuerdo a la escala de Kappa es aceptable
(
p=0.001). Tomando a la biopsia como el estándar
de oro, el correcto diagnóstico del ganglio centinela
por ultrasonido fue de 66.4% con un intervalo de
confianza al 95% (IC95%) de 57.7 a 74.2%, la
sensibilidad fue de 47.3% (IC95%, 33.9-61.1%),
la especificidad de 79.7% (IC95%, 68.9%-87.5%),
el valor predictivo positivo fue de 61.9% (IC95%,
45.6%-76.0%) y el valor predictivo negativo fue de
68.5% (IC95%, 57.8%-77.5%).
Conclusión. El ultrasonido tiene una utilidad
aceptable en el diagnóstico de metástasis a ganglio
centinela.
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