[Cardiac surgery stratified by EuroSCORE. Long-term survival]. / Cirugía cardíaca estratificada por EuroSCORE. Supervivencia a largo plazo.

The objective was to explore the usefulness of the logistic EuroSCORE to stratify the long-term survival curves in a sample of patients undergoing cardiac surgery. The 8-year survival of 390 patients undergoing cardiac surgery between 2003 and 2004 was analyzed, according to the basal value of the EuroSCORE, patients were classified into three risk groups: < 5%, 5-14.9% and > 15%. Eight-years Kaplan-Meier's survival after coronary artery bypass grafting divided by the basal EuroSCORE was 83.5% for a basal risk < 5%, 65.2% for a basal risk 5 to 14.9% and 40.0% for a basal risk >15% (p = 0.000); whereas for valve or combined surgery it was 86.1%, 60.0% and 18.2% respectively (p = 0.0000). For all patients, ROC area was 0.759 (p = 0.000), for a EuroSCORE < 5% it was 0.689 (p = 0.002), between 5 and 14.9% it was 0.544 (p = 0.499) and for >15% it was 0.725 (p = 0.067). In conclusion, the logistic EuroSCORE allowed properly stratify the long-term survival curves in a sample of patients undergoing cardiac surgery, both the coronary and valve or combined surgery. Long-term results stratified by risk are a reasonable way to present late postoperative survival.

Cirugía cardíaca estratificada por EuroSCORE: Supervivencia a largo plazo / Cardiac surgery stratified by EuroSCORE: Long-term survival

El objetivo fue explorar la utilidad del EuroSCORE logístico para estratificar las curvas de supervivencia alejada en una muestra de pacientes sometidos a cirugía cardíaca. Se analizaron los resultados a 8 años de 390 pacientes sometidos a cirugía cardíaca entre 2003-2004, de acuerdo al puntaje inicial del EuroSCORE logístico, divididos en tres grupos de riesgo: < 5%, 5-14.9% y ≥15%. La supervivencia por Kaplan-Meier a 8 años de la cirugía coronaria dividida por el EuroSCORE fue 83.5% para un riesgo inicial < 5%, 65.2% para un riesgo inicial entre 5 y 14.9% y 40.0% para un riesgo inicial ≥15% (p = 0.000); mientras que de la cirugía valvular o combinada fue 86.1%, 60.0% y 18.2% respectivamente (p = 0.0000). Para el total de pacientes, el área ROC fue 0.759 (p = 0.000), para un EuroSCORE <5% fue 0.689 (p = 0.002), entre 5 y 14.9% fue 0.544 (p = 0.499) y para ≥15% fue 0.725 (p = 0.067). En conclusión, el EuroSCORE logístico permitió estratificar adecuadamente las curvas de supervivencia alejada en una muestra de pacientes sometidos a cirugía cardíaca, tanto en la cirugía coronaria como en la valvular o combinada. La estratificación de los resultados a largo plazo separados por riesgo constituye una forma razonable de presentar el pronóstico.

The objective was to explore the usefulness of the logistic EuroSCORE to stratify the long-term survival curves in a sample of patients undergoing cardiac surgery. The 8-year survival of 390 patients undergoing cardiac surgery between 2003 and 2004 was analyzed, according to the basal value of the EuroSCORE, patients were classified into three risk groups: < 5%, 5-14.9% and ≥15%. Eight-years Kaplan-Meier's survival after coronary artery bypass grafting divided by the basal EuroSCORE was 83.5% for a basal risk < 5%, 65.2% for a basal risk 5 to 14.9% and 40.0% for a basal risk ≥15% (p = 0.000); whereas for valve or combined surgery it was 86.1%, 60.0% and 18.2% respectively (p = 0.0000). For all patients, ROC area was 0.759 (p=0.000), for a EuroSCORE <5% it was 0.689 (p = 0.002), between 5 and 14.9% it was 0.544 (p = 0.499) and for ≥15% it was 0.725 (p = 0.067). In conclusion, the logistic EuroSCORE allowed properly stratify the long-term survival curves in a sample of patients undergoing cardiac surgery, both the coronary and valve or combined surgery. Long-term results stratified by risk are a reasonable way to present late postoperative survival.

Cirugía cardíaca estratificada por EuroSCORE: Supervivencia a largo plazo / Cardiac surgery stratified by EuroSCORE: Long-term survival

El objetivo fue explorar la utilidad del EuroSCORE logístico para estratificar las curvas de supervivencia alejada en una muestra de pacientes sometidos a cirugía cardíaca. Se analizaron los resultados a 8 años de 390 pacientes sometidos a cirugía cardíaca entre 2003-2004, de acuerdo al puntaje inicial del EuroSCORE logístico, divididos en tres grupos de riesgo: < 5%, 5-14.9% y ≥15%. La supervivencia por Kaplan-Meier a 8 años de la cirugía coronaria dividida por el EuroSCORE fue 83.5% para un riesgo inicial < 5%, 65.2% para un riesgo inicial entre 5 y 14.9% y 40.0% para un riesgo inicial ≥15% (p = 0.000); mientras que de la cirugía valvular o combinada fue 86.1%, 60.0% y 18.2% respectivamente (p = 0.0000). Para el total de pacientes, el área ROC fue 0.759 (p = 0.000), para un EuroSCORE <5% fue 0.689 (p = 0.002), entre 5 y 14.9% fue 0.544 (p = 0.499) y para ≥15% fue 0.725 (p = 0.067). En conclusión, el EuroSCORE logístico permitió estratificar adecuadamente las curvas de supervivencia alejada en una muestra de pacientes sometidos a cirugía cardíaca, tanto en la cirugía coronaria como en la valvular o combinada. La estratificación de los resultados a largo plazo separados por riesgo constituye una forma razonable de presentar el pronóstico.(AU)

The objective was to explore the usefulness of the logistic EuroSCORE to stratify the long-term survival curves in a sample of patients undergoing cardiac surgery. The 8-year survival of 390 patients undergoing cardiac surgery between 2003 and 2004 was analyzed, according to the basal value of the EuroSCORE, patients were classified into three risk groups: < 5%, 5-14.9% and ≥15%. Eight-years Kaplan-Meiers survival after coronary artery bypass grafting divided by the basal EuroSCORE was 83.5% for a basal risk < 5%, 65.2% for a basal risk 5 to 14.9% and 40.0% for a basal risk ≥15% (p = 0.000); whereas for valve or combined surgery it was 86.1%, 60.0% and 18.2% respectively (p = 0.0000). For all patients, ROC area was 0.759 (p=0.000), for a EuroSCORE <5% it was 0.689 (p = 0.002), between 5 and 14.9% it was 0.544 (p = 0.499) and for ≥15% it was 0.725 (p = 0.067). In conclusion, the logistic EuroSCORE allowed properly stratify the long-term survival curves in a sample of patients undergoing cardiac surgery, both the coronary and valve or combined surgery. Long-term results stratified by risk are a reasonable way to present late postoperative survival.(AU)

Cirugía cardíaca estratificada por EuroSCORE. Supervivencia a largo plazo. / [Cardiac surgery stratified by EuroSCORE. Long-term survival].

The objective was to explore the usefulness of the logistic EuroSCORE to stratify the long-term survival curves in a sample of patients undergoing cardiac surgery. The 8-year survival of 390 patients undergoing cardiac surgery between 2003 and 2004 was analyzed, according to the basal value of the EuroSCORE, patients were classified into three risk groups: < 5

, 5-14.9

and > 15

. Eight-years Kaplan-Meiers survival after coronary artery bypass grafting divided by the basal EuroSCORE was 83.5

for a basal risk < 5

, 65.2

for a basal risk 5 to 14.9

and 40.0

for a basal risk >15

(p = 0.000); whereas for valve or combined surgery it was 86.1

, 60.0

and 18.2

respectively (p = 0.0000). For all patients, ROC area was 0.759 (p = 0.000), for a EuroSCORE < 5

it was 0.689 (p = 0.002), between 5 and 14.9

it was 0.544 (p = 0.499) and for >15

it was 0.725 (p = 0.067). In conclusion, the logistic EuroSCORE allowed properly stratify the long-term survival curves in a sample of patients undergoing cardiac surgery, both the coronary and valve or combined surgery. Long-term results stratified by risk are a reasonable way to present late postoperative survival.