Ventricular fibrillation during off-pump coronary artery bypass grafting: transcranial Doppler and clinical findings.
A 73-year-old male developed ventricular fibrillation which lasted for 2 min and 24 s, during off-pump coronary artery bypass grafting. Cerebral hemodynamics were assessed by continuous transcranial Doppler monitoring. Ventricular fibrillation resulted in an immediate fall in cerebral blood flow velocities to almost zero with only slight fluctuations. This was then followed by a pronounced reactive hyperperfusion. Cerebral magnetic resonance imaging examinations and detailed neurological and neuropsychological evaluations were performed before and at 3 and 12 months after surgery. No evidence of cerebral damage was found.
Lund
C
C
Department of Neurology, Rikshospitalet, University of Oslo, Norway. lundchr@online.no
Lundblad
R
R
Fosse
E
E
Tønnessen
T I
TI
Sundet
K
K
Brucher
R
R
Russell
D
D
D000368:Aged; D001783:Blood Flow Velocity / Q000502:physiology; D001921:Brain / Q000473:pathology / Q000503:physiopathology; D002560:Cerebrovascular Circulation / Q000502:physiology; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D003327:Coronary Disease / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging; D017585:Ultrasonography, Doppler, Transcranial; D014693:Ventricular Fibrillation / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology*