Plasma magnesium concentration in patients undergoing coronary artery bypass grafting

Edyta Kotlinska-Hasiec 1, Marta Makara-Studzinska 2, Marek Czajkowski 3, Ziemowit Rzecki 1, Krzysztof Olszewski 3, Adam Stadnik 3, Jacek Pilat 4, Beata Rybojad 1, Wojciech Dabrowski 1
1 - Department of Anaesthesiology and Intensive Therapy Medical Universitty of Lublin, Poland
2 - Department of Applied Psychology Medical University, Lublin, Poland
3 - Department of Cardiac Surgery Medical University of Lublin, Poland
4 - Department of General Surgery, Transplantology and Clinical Nutrition Medical University of Lublin, Poland
Ann Agric Environ Med

ICID: 1232767
Article type: Original article
 
 
Introduction. Magnesium (Mg) plays a crucial role in cell physiology and its deficiency may cause many disorders which often require intensive treatment. The aim of this study was to analyse some factors affecting preoperative plasma Mg concentration in patients undergoing coronary artery bypass grafting (CABG).
Materials and method. Adult patients scheduled for elective CABG with cardio-pulmonary bypass (CPB) under general anaesthesia were studied. Plasma Mg concentration was analysed before surgery in accordance with age, domicile, profession, tobacco smoking and preoperative Mg supplementation. Blood samples were obtained from the radial artery just before the administration of anaesthesia.
Results. 150 patients were studied. Mean preoperative plasma Mg concentration was 0.93 ± 0.17 mmol/L; mean concentration in patients – 1.02 ± 0.16; preoperative Mg supplementation was significantly higher than in patients without such supplementation. Moreover, intellectual workers supplemented Mg more frequently and had higher plasma Mg concentration than physical workers. Plasma Mg concentration decreases in elderly patients. Patients living in cities, on average, had the highest plasma Mg concentration. Smokers had significantly lower plasma Mg concentration than non-smokers.
Conclusions. 1. Preoperative magnesium supplementation increases its plasma concentration. 2. Intellectual workers frequently supplement magnesium. 3. Smoking cigarettes decreases plasma magnesium concentration.
DOI: 10.5604/12321966.1232767    
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