Abstract
Background and aim: Shunt tap decreases ICP & improves cerebral perfusion & should be detected by cerebral rSO2. Determine cerebral rSO2 reliability during shunt tap.
Method: Left & right cerebral rSO2 q 5 seconds before,during &1 hour posttap.
Results: 94 subjects had cerebral rSO2 monitoring, 63 proximal & 31 distal malfunctioning.
Overall post-pretap rSO2,right hemisphere showed significant difference,p=0.03. Post-pretap linear regression mean,Left:-0.17,95%CL:-0.27,-0.06,p=0.002, Right:-0.12,95%Cl:-0.-22,0.02,p=0.019) & SDLeft:-0.68, 95%CI:-0.9,-0.5,p< 0.001,Right:-0.64 95%CI:-0.82,-0.45,
p< 0.001 were significant. 94 pts' Bland-Altman test showed wide between cerebral difference -0.28,95%CI:-18.1,17.5. Distal vs proximal pre-posttap linear regression was predictive for site. (Left:-0.48,95%CI:-0.72,-0.24,p< 0.001,Right:-0.23,95%CI:-0.43, -0.018,p=0.033).
Conclusion: Cerebral rSO2 monitoring during shunt taps demonstrated cerebral perfusion changes with CSF removal. rSO2 readings were significantly different after tap; more in distal vs proximal malfunction.
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Abramo, T., Estrada, C., Moore, C. et al. Cerebral RSO2 Monitoring During Shunt Tap in Malfunctioning Ventricular Shunt. Pediatr Res 70 (Suppl 5), 117 (2011). https://doi.org/10.1038/pr.2011.342
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DOI: https://doi.org/10.1038/pr.2011.342