Cardiovascular surgery (London, England)
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Cerebral vasoreactivity (CVR) was evaluated as a preoperative test in predicting cerebral tolerance to carotid clamping. A consecutive series of 115 carotid endarterectomy (CEA) cases were studied. Before surgical operation CVR was evaluated, by measuring the mean velocity of the middle cerebral artery (mv-MCA) using transcranial Doppler (TCD) at the basal condition and 20 min after intravenous administration of acetazolamide (1 g). ⋯ CVR did not correlate with mv-MCA% (r=0.22). There was no significant difference (P=0.09) between mean values of the non shunted subgroup and the shunted one. CVR does not seem to be suitable for evaluating cerebral tolerance to carotid clamping.
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Our objective was to determine the association of pre-operative and post-operative coagulation testing abnormalities with the cause of post-operative bleeding requiring re-exploration following cardiac surgery. ⋯ Pre-operative testing (ACT, PT) weakly correlated with post-operative coagulopathy. Post-operative coagulation abnormalities were identified with high risk ratios and good diagnostic accuracy when using testing cut-off values to assist in surgical decision making.
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Randomized Controlled Trial Comparative Study Clinical Trial
Splanchnic oxygenation in patients undergoing abdominal aortic aneurysm repair and volume expansion with eloHAES.
Gastric intramucosal pH (pHi), a surrogate marker of splanchnic oxygenation, falls following abdominal aortic aneurysm surgery. ⋯ In patients undergoing abdominal aortic aneurysm repair, plasma expansion with eloHAES improves microvascular perfusion and splanchnic oxygenation.