Biomaterial Database

Blood ionized calcium measurements during aortocoronary bypass graft operations. 1983

K O Pedersen, and O Juhl

Electrode technology has made it feasible to measure and report arterial blood ionized calcium (Ca++) simultaneously with arterial blood gases and pH during aortocoronary bypass graft operations requiring prolonged (duration 1.23-4.43 hours) extracorporeal circulation and moderate hypothermia (25-28 degrees C). Blood Ca++ in 22 consecutive patients remained surprisingly constant at a moderately hypocalcaemic level despite the multiplicity of disturbing factors, but rewarming and blood transfusion did cause a small, but significant decline of blood Ca++. Management of patients has been changed by routine availability of close to real time Ca++ measurements, which are more convenient and faster in this situation than plasma total calcium, which is meaningless or even misleading.

UI	MeSH Term	Description	Entries
D002118	Calcium	A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.	Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D002413	Cations, Divalent	Positively charged atoms, radicals or groups of atoms with a valence of plus 2, which travel to the cathode or negative pole during electrolysis.	Divalent Cations
D003080	Cold Temperature	An absence of warmth or heat or a temperature notably below an accustomed norm.	Cold,Cold Temperatures,Temperature, Cold,Temperatures, Cold
D005112	Extracorporeal Circulation	Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation.	Circulation, Extracorporeal,Circulations, Extracorporeal,Extracorporeal Circulations
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001026	Coronary Artery Bypass	Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.	Aortocoronary Bypass,Bypass, Coronary Artery,Bypass Surgery, Coronary Artery,Coronary Artery Bypass Grafting,Coronary Artery Bypass Surgery,Aortocoronary Bypasses,Artery Bypass, Coronary,Artery Bypasses, Coronary,Bypass, Aortocoronary,Bypasses, Aortocoronary,Bypasses, Coronary Artery,Coronary Artery Bypasses