Cerebral microemboli during minimally invasive and conventional mitral valve operations Felix Schneider, MD, Jörg-Friedrich Onnasch, MD, Volkmar Falk,

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Presentation transcript:

Cerebral microemboli during minimally invasive and conventional mitral valve operations Felix Schneider, MD, Jörg-Friedrich Onnasch, MD, Volkmar Falk, MD, Thomas Walther, MD, Rüdiger Autschbach, MD, PhD, Friedrich W Mohr, MD, PhD The Annals of Thoracic Surgery Volume 70, Issue 3, Pages 1094-1097 (September 2000) DOI: 10.1016/S0003-4975(00)01776-8

Fig 1 Total rate of microembolic signals (MES) given as mean ± standard deviation. (conv. = conventional mitral valve surgery; MIS = minimally invasive mitral valve surgery.) The Annals of Thoracic Surgery 2000 70, 1094-1097DOI: (10.1016/S0003-4975(00)01776-8)

Fig 2 Median rate of microembolic signals (MES) detected during the three time periods. Note the significantly increased number of MES in both groups during the third time period. (conv. = conventional mitral valve surgery; MIS = minimally invasive mitral valve surgery.) The Annals of Thoracic Surgery 2000 70, 1094-1097DOI: (10.1016/S0003-4975(00)01776-8)

Fig 3 (A) Doppler pattern of the right middle cerebral artery: increased flow velocity during migration of the endoclamp up to the brachiocephalic trunk and two concomitant microembolic signals (MES). (B) “Shower” of MES during the third time period: air bubbles reaching the cerebral circulation after declamping. Patient operated using the conventional technique. The Annals of Thoracic Surgery 2000 70, 1094-1097DOI: (10.1016/S0003-4975(00)01776-8)