To identify clinical predictors of last-minute preoperative cardiology
consultations and to evaluate the impact of these consultations on pa
tient care, we performed a retrospective case-control study including
all 166 patients who received unscheduled cardiology consultations at
the preadmission testing center (PATC) of an urban teaching hospital.
Control subjects were 166 patients matched by date and category of sur
gical procedure. Significant (p < 0.05) independent predictors of last
-minute consultations included history of myocardial infarction (odds
ratio [OR] = 23.7; 95% confidence interval [Cl] = 1.5 to 373), history
of chest pain (OR = 15.3; 95% CI = 3.7 to 62.9), history of chronic o
bstructive lung disease (OR = 5.9; 95% Cl = 1.1 to 32.9), prior echoca
rdiography (OR = 3.4; 95% Cl = 1.2 to 9.8), and age (OR per decade = 1
.1; 95% Cl = 1.04 to 1.1). Thus among patients undergoing elective non
cardiac surgery, last-minute preoperative consultations are common and
are usually precipitated by an abnormal electrocardiogram or history
of cardiovascular disease. Last-minute consultations may be preventabl
e if those patients with risk factors for consultation are identified
in advance of the preadmission evaluation and referred for elective co
nsultation.