Low cardiac output syndrome in the postoperative period of cardiac surgery. Profile, differences in clinical course and prognosis. The ESBAGA study

• Published in: Medicina intensiva Vol. 42; no. 3; pp. 159 - 167
• Main Authors: Pérez Vela, J L, Jiménez Rivera, J J, Alcalá Llorente, M Á, González de Marcos, B, Torrado, H, García Laborda, C, Fernández Zamora, M D, González Fernández, F J, Martín Benítez, J C
• Format: Journal Article
• Language: English; Spanish
• Published: Spain 01.04.2018
• Subjects: Aged; Aged, 80 and over; Cardiac Output, Low - blood; Cardiac Output, Low - epidemiology; Cardiac Output, Low - etiology; Cardiac Surgical Procedures; Comorbidity; Female; Hospital Mortality; Humans; Intensive Care Units - statistics & numerical data; Lactates - blood; Male; Middle Aged; Oliguria - epidemiology; Oliguria - etiology; Oxygen - blood; Postoperative Complications - blood; Postoperative Complications - epidemiology; Postoperative Complications - etiology; Prognosis; Prospective Studies; Risk Factors; Shock, Cardiogenic - blood; Shock, Cardiogenic - epidemiology; Shock, Cardiogenic - etiology; Spain - epidemiology; Spain; Síndrome de bajo gasto cardíaco; Low cardiac output syndrome; Evolución; Prognosis; Pronóstico; ESBAGA; Evolution; Cardiac surgery; Cirugía cardíaca
• ISSN: 1578-6749
• DOI: 10.1016/j.medin.2017.05.009

An analysis is made of the clinical profile, evolution and differences in morbidity and mortality of low cardiac output syndrome (LCOS) in the postoperative period of cardiac surgery, according to the 3 diagnostic subgroups defined by the SEMICYUC Consensus 2012. A multicenter, prospective cohort study was carried out. ICUs of Spanish hospitals with cardiac surgery. A consecutive sample of 2,070 cardiac surgery patients was included, with the analysis of 137 patients with LCOS. No intervention was carried out. The mean patient age was 68.3±9.3 years (65.2% males), with a EuroSCORE II of 9.99±13. NYHA functional class III-IV (52.9%), left ventricular ejection fraction<35% (33.6%), AMI (31.9%), severe PHT (21.7%), critical preoperative condition (18.8%), prior cardiac surgery (18.1%), PTCA/stent placement (16.7%). According to subgroups, 46 patients fulfilled hemodynamic criteria of LCOS (group A), 50 clinical criteria (group B), and the rest (n=41) presented cardiogenic shock (group C). Significant differences were observed over the evolutive course between the subgroups in terms of time subjected to mechanical ventilation (114.4, 135.4 and 180.3min in groups A, B and C, respectively; P<.001), renal replacement requirements (11.4, 14.6 and 36.6%; P=.007), multiorgan failure (16.7, 13 and 47.5%), and mortality (13.6, 12.5 and 35.9%; P=.01). The mean maximum lactate concentration was higher in cardiogenic shock patients (P=.002). The clinical evolution of these patients leads to high morbidity and mortality. We found differences between the subgroups in terms of the postoperative clinical course and mortality.