How to calculate the logistic euroSCORE

You can try the system for yourself using interactive calculator and selecting "LOGISTIC" (available in six languages)

Using the same risk factors as the additive model, the logistic regression version of the score (the “logistic EuroSCORE”) can be calculated. For a given patient, the “logistic EuroSCORE” which is the predicted mortality according to the logistic regression equation, can be achieved with the following formula:

βi is the coefficient of the variable Xi in the logistic regression equation provided in the table below.

For age, Xi = 1 if patient age < 60; Xi increase by one point per year thereafter;

Cardiologists and cardiac surgeons will be relieved to note that they do not have to face this complex calculation with every patient.

EuroSCORE (additive and logistic) can be calculated with ease using the online calculator on the EuroSCORE website.

Beta coefficients for the Logistic regression model of EuroSCORE in the 1995 pilot study

Patient-related factors		*Beta*
Age	Continuous	0.0666354
Sex	female	0.3304052
Chronic pulmonary disease	longterm use of bronchodilators or steroids for lung disease	0.4931341
Extracardiac arteriopathy	any one or more of the following: claudication, carotid occlusion or >50% stenosis, previous or planned intervention on the abdominal aorta,limb arteries or carotids	0.6558917
Neurological dysfunction disease	severely affecting ambulation or day-to-day functioning	0.841626
Previous cardiac surgery	requiring opening of the pericardium	1.002625
Serum creatinine	>200m micromol/L preoperatively	0.6521653
Active endocarditis	patient still under antibiotic treatment for endocarditis at the time of surgery	1.101265
Critical preoperative state	any one or more of the following: ventricular tachycardia or fibrillation or aborted sudden death, preoperative cardiac massage, preoperative ventilation before arrival in the anaesthetic room,preoperative inotropic support, intraaortic balloon counterpulsation or preoperative acute renal failure (anuria or oliguria<10 ml/hour)	0.9058132
Cardiac-related factors		*Beta*
Unstable angina	rest angina requiring iv nitrates until arrival in the anaesthetic room	0.5677075
LV dysfunction	moderate or LVEF30-50%	0.4191643
	poor or LVEF <30	1.094443
Recent myocardial infarct	(<90 days)	0.5460218
Pulmonary hypertension	Systolic PA pressure>60 mmHg	0.7676924

Operation-related factors		*Beta*
Emergency	carried out on referral before the beginning of the next working day	0.7127953
Other than isolated CABG	major cardiac procedure other than or in addition to CABG	0.5420364
Surgery on thoracic aorta	for disorder of ascending, arch or descending aorta	1.159787
Postinfarct septal rupture		1.462009