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Comparison between transcranial Doppler and Coulter counter for detection of lipid micro embolization from mediastinal shed blood reinfusion during cardiac surgery. 2011

A Eyjolfsson, and F Al-Rashidi, and M Dencker, and S Scicluna, and B Brondén, and B Koul, and H Bjursten
Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden.

BACKGROUND Lipid micro embolization (LME) from re-transfused shed blood has been postulated to be a potential reason for short- and long-term cognitive dysfunction after cardiac surgery. The purpose of this investigation was to evaluate if transcranial Doppler (TCD) has the capacity to detect LME. METHODS Thirteen patients undergoing cardiopulmonary bypass surgery were investigated. Each patient's cerebral circulation was monitored with transcranial Doppler during the first two minutes after re-transfusion of shed blood and blood was simultaneously sampled and characterised by a Coulter counter. RESULTS Strong correlation was found between embolic loads, as measured by transcranial Doppler and Coulter counter (r=0.79, P<0.005). CONCLUSIONS This pilot study shows that non-invasive monitoring by transcranial Doppler could be a potential tool to monitor LME during cardiopulmonary bypass surgery.

UI MeSH Term Description Entries
D008297 Male Males
D008482 Mediastinum A membrane in the midline of the THORAX of mammals. It separates the lungs between the STERNUM in front and the VERTEBRAL COLUMN behind. It also surrounds the HEART, TRACHEA, ESOPHAGUS, THYMUS, and LYMPH NODES.
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010316 Particle Size Relating to the size of solids. Particle Sizes,Size, Particle,Sizes, Particle
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D002315 Cardiopulmonary Bypass Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs. Heart-Lung Bypass,Bypass, Cardiopulmonary,Bypass, Heart-Lung,Bypasses, Cardiopulmonary,Bypasses, Heart-Lung,Cardiopulmonary Bypasses,Heart Lung Bypass,Heart-Lung Bypasses
D004620 Embolism, Fat Blocking of a blood vessel by fat deposits in the circulation. It is often seen after fractures of large bones or after administration of CORTICOSTEROIDS. Fat Embolism,Fat Embolism Syndrome,Embolisms, Fat,Fat Embolisms
D005260 Female Females
D006348 Cardiac Surgical Procedures Surgery performed on the heart. Cardiac Surgical Procedure,Heart Surgical Procedure,Heart Surgical Procedures,Procedure, Cardiac Surgical,Procedure, Heart Surgical,Procedures, Cardiac Surgical,Procedures, Heart Surgical,Surgical Procedure, Cardiac,Surgical Procedure, Heart,Surgical Procedures, Cardiac,Surgical Procedures, Heart
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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