caa a22 4500 477106684 CHVBK 20180405111555.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01411479 doi (NATIONALLICENCE)springer-10.1007/BF01411479 Thermal diffusion blood flow monitoring during aneurysm surgery [Elektronische Daten] [N. Ogata, J. Fournier, H. Imhof, Y. Yonekawa] Summary: Cortical blood flow (CoBF) monitoring with a thermal diffusion flow probe was performed during the clipping of aneurysms of the ICA and MCA regions, on a series of patients during the acute stage of subarachnoid haemorrhage. Emphasis was placed on the CoBF recovery after temporary clip release. Since the absolute value in this technique is unreliable, recovery of blood flow after temporary clipping is represented as %CoBF according to the following equation: %CoBF recovery = (CoBFpost-CoBFintra)/(CoBFpre-CoBFintra) Presumably, this parameter checks the patency of the concerned cerebral vessels during clipping and/or release. Percent recovery of more than 100%, indicating postischaemic reactive hyperaemia, was observed immediately after release of the temporary clips in 8 of the 9 cases evaluated. In one case, with prolonged temporary clipping (37 min), no immediate recovery was observed after clip release, suggesting no-reflow phenomenon. The value slowly recovered after local administration of papaverin and returned to the pre-occlusion level within 20 minutes. Thermal diffusion CoBF monitoring may be useful in detecting the possible no-reflow phenomenon, that may lead to ischaemic complication, even after successful aneurysm clipping. Springer-Verlag, 1996 Thermal diffusion nationallicence cerebral blood flow nationallicence temporary clipping nationallicence cerebral aneurysm nationallicence Ogata N. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut Fournier J. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut Imhof H. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut Yonekawa Y. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut Acta Neurochirurgica Springer-Verlag 138/6(1996-06-01), 726-731 0001-6268 138:6<726 1996 138 701 https://doi.org/10.1007/BF01411479 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01411479 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ogata N. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut NATIONALLICENCE 700 1- Fournier J. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut NATIONALLICENCE 700 1- Imhof H. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut NATIONALLICENCE 700 1- Yonekawa Y. Department of Neurosurgery, University Hospital of Zürich, Switzerland aut NATIONALLICENCE 773 0- Acta Neurochirurgica Springer-Verlag 138/6(1996-06-01), 726-731 0001-6268 138:6<726 1996 138 701 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer