Abstract：
OBJECTIVES:The pathophysiology of traumatic brain injury (TBI) largely involves the brains vascular structural integrity. We analyzed the value of an intraoperative cortical indocyanine green (ICG) angiography in patients with severe TBI and acute subdural hematoma who underwent decompressive craniectomy. METHODS:ICG-derived fluorescence curves of cortex and cerebral vessels were recorded by the use of software integrated into a surgical microscope in 10 patients. The maximum intensity, rise time (RT), time to peak, and residual fluorescence intensity (FI) were estimated from cortical arteries, the parenchyma, and veins. RESULTS:ICG-derived fluorescence parameters were correlated with the short-term outcome 3 months after discharge. Five patients had a favorable and 5 an unfavorable outcome. Patients with a favorable outcome showed a significant longer RT in the arteries and a trend towards a significant longer RT in the veins. Overall mean residual FI was 47.5 ± 6.8% for the arteries, 45.0 ± 7% for the parenchyma and 57.6 ± 6% for the veins. The residual FI of the parenchyma and the veins was significantly greater in patients with an unfavorable clinical outcome. CONCLUSIONS:Patients with an unfavorable clinical outcome showed an altered shape of the ICG-derived fluorescence curve, a shorter increase of the ICG-derived fluorescence intensity in the cortical arteries, and significantly greater residual fluorescence intensity. These observations are likely a correlate of an increased intracranial pressure, a capillary leak, and venous congestion. Intraoperative quantification of the ICG-derived fluorescence might help to appreciate the clinical outcome in patients with severe TBI.
journal_name
World Neurosurgjournal_title
World neurosurgeryauthors
Kamp MA,Sarikaya-Seiwert S,Petridis AK,Beez T,Cornelius JF,Steiger HJ,Turowski B,Slotty PJdoi
10.1016/j.wneu.2017.01.054subject
Has Abstractpub_date
2017-05-01 00:00:00pages
431-443eissn
1878-8750issn
1878-8769pii
S1878-8750(17)30077-3journal_volume
101pub_type
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