Introducción y objetivos: La epidemia de COVID-19 y la declaración del estado de alarma han propiciado una disminución en la actividad en la cardiología intervencionista. El objetivo de este estudio es cuantificar esta disminución, con especial interés en el funcionamiento del código infarto. Métodos: Se realizó una encuesta telemática a 81 centros de las 17 comunidades autónomas españolas con procedimientos de código infarto. Se recogió información sobre la actividad diagnóstica, el intervencionismo coronario, el intervencionismo estructural y el intervencionismo en el seno del infarto agudo de miocardio con elevación del segmento ST (IAMCEST) sobre cambios en la organización de las redes del infarto y sobre la afección por COVID-19 de las plantillas de cardiología intervencionista. Se compararon 2 periodos: uno entre el 24 de febrero y el 1 de marzo (antes del inicio de la pandemia en España) y el otro entre el 16 y el 22 de marzo (durante la pandemia). Resultados: Se obtuvo respuesta de 73 centros (90%) que evidenció una disminución significativa en el número de procedimientos diagnósticos (-56%), terapéuticos coronarios (-48%), terapéuticos estructurales (-81%) y en el seno del IAMCEST (-40%). Se indicó un leve incremento en el uso de trombolisis. Se diagnosticó infección por COVID-19 en 17 cardiólogos intervencionistas (5%). Conclusiones: Se observó una reducción importante de la actividad asistencial durante la epidemia de COVID-19 y una gran disminución en el número de pacientes tratados con IAMCEST, con el riesgo de incremento de morbimortalidad que esto supone. Las sociedades científicas y autoridades sanitarias deberían promover que los pacientes con síntomas compatibles con IAMCEST demanden asistencia al sistema sanitario para poder recibir el tratamiento de reperfusión de forma adecuada.

We comparatively evaluated different cytokeratin (CK) reagents analyzed by flow cytometry (FCM) for the identification of the best combination of DNA/CK staining for detecting minimal numbers of breast cancer cells in peripheral blood (PB). In 59 primary breast cancer tumors, we comparatively analyzed the reactivity for up to 6 different anti-CK reagents using multiparameter FCM: anti-CK7, anti-CK20, anti-pan-CK, anti-CK8/CK18, anti-CK8, and anti-CK18. Afterward, dilutional experiments of Michigan Cancer Foundation (MCF)7 breast cancer cells in PB were performed, and the sensitivity of a DNA/CK18 staining was evaluated. Our results showed that anti-CK18 reagents were those providing the brightest and more sensitive staining for primary breast cancer tumor cells by FCM. Dilutional experiments of MCF cells in PB showed that the DNA/anti-CK18 double staining was highly specific for the identification of epithelial cells; its sensitivity ranged between 10(-6) and 10(-7) (detection of 1 tumor cell among 10(6) to 10(7) nucleated blood cells). Combined assessment of DNA cell contents and reactivity for CK18 by FCM is a sensitive method for the specific identification of breast cancer cells in PB.

PurposeTo describe the clinical features and outcomes of estrogen receptor negative (ER-) and progesterone receptor positive (PgR+) breast cancer.MethodsWe retrospectively reviewed a well-characterized database of sequential patients diagnosed with early stage invasive breast carcinoma. Outcomes of interest were time to relapse (TTR) and overall survival (OS). Multivariable Cox proportional hazards analysis was conducted to assess the association of ER-/PgR+ with TTR and OS in comparison to ER+ and to ER- and PgR negative (ER-/PgR-) tumors irrespective of HER2 status. ER and PgR expression was conservatively defined as 10% or greater staining of cancer cells.Results815 patients were followed for a median of 40.5 months; 56 patients (7%) had ER-/PgR+, 624 (77%) had ER+ and 136 (17%) had ER-/PgR- phenotypes. Compared with ER+ tumors, ER-/PgR+ tumors were associated with younger age (50 versus 59 years, p=0.03), high grade (50% versus 24%, p<0.001) and more frequent HER2 overexpression/amplification (43% versus 14%, p<0.001). TTR for ER-/PgR+ was intermediate between ER+ and ER-/PgR- tumors, but was not significantly different from ER+ tumors. Recurrences in the ER-/PgR+ and ER-/PgR- groups occurred early in follow-up while in ER+ tumors recurrences continued to occur over the duration of follow-up. OS of ER-/PgR+ was similar to ER+ tumors and better than that of ER-/PgR- tumors.ConclusionsThe ER-/PgR+ phenotype is associated with higher grade with HER2 overexpression/amplification and occurs more commonly in younger women. Risk of relapse and death more closely resembles ER+ than ER-/PgR- tumors suggesting this phenotype represents a group of more aggressive hormone receptor positive tumors.

The bipolar saline-enhanced RF ablation method produces homogeneous and predictable areas of coagulation necrosis between two electrodes, regardless of the distance between them, preferably with vascular inflow occlusion.

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