Cardiothoracic Anesthesia Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
cerebral oximetry NIRS
Non-invasive monitoring technique measuring regional brain tissue oxygen saturation using near-infrared spectroscopy.
cerebral desaturation
Decrease in regional cerebral oxygen saturation below baseline values, indicating potential cerebral hypoxia.
cerebral embolism
Obstruction of cerebral blood vessels by embolic material during cardiac procedures.
cerebral oximetry
Non-invasive monitoring technique measuring regional brain tissue oxygen saturation using near-infrared spectroscopy.
coagulopathy
Abnormal blood clotting function commonly seen after cardiopulmonary bypass.
conduit anastomosis
Surgical connection between a bypass graft conduit and target coronary artery or aorta.
conduit harvesting
The surgical procurement of vessels or tissues for use as grafts in cardiac bypass procedures.
coronary perfusion pressure
Pressure gradient driving coronary blood flow, calculated as aortic diastolic pressure minus left ventricular end-diasto...
CPB
Cardiopulmonary bypass; mechanical circulation and oxygenation during cardiac surgery.
cross-clamp time
The duration during cardiac surgery when the ascending aorta is clamped, representing the period of myocardial ischemia.
de-airing
The process of removing air from cardiac chambers and great vessels before weaning from cardiopulmonary bypass.
deep hypothermic circulatory arrest
Technique using extreme cooling to safely stop circulation during complex surgery.
del Nido cardioplegia
Single-dose cardioplegic solution providing extended myocardial protection.
dexmedetomidine
Highly selective alpha-2 adrenergic agonist used for sedation and anxiolysis in cardiac surgery patients.
diastolic dysfunction
Impaired ventricular relaxation and filling during diastole, often with preserved systolic function.
dicrotic notch
Characteristic deflection in arterial pressure waveform corresponding to aortic valve closure during cardiac cycle.
double-lumen tube
A specialized endotracheal tube with two lumens allowing independent ventilation of each lung during thoracic surgery.
ECMO
A form of life support that provides prolonged cardiac and respiratory support using external oxygenation.
epiaortic scanning
Intraoperative ultrasound examination of the ascending aorta to detect atherosclerotic disease and guide cannulation str...
epicardial pacing
Temporary cardiac pacing using wires placed directly on the heart surface.
fast-track extubation
Early postoperative extubation strategy within 6 hours of cardiac surgery completion.
fractional area change
Echocardiographic measure of right ventricular systolic function expressed as percentage change in ventricular area.
fractional shortening
Echocardiographic measure of left ventricular systolic function calculated from end-diastolic and end-systolic dimension...
graft anastomosis
Surgical connection between bypass graft and target vessel in coronary surgery.
graft patency
The state of a bypass graft remaining open and functional, allowing adequate blood flow to the target coronary territory...