| Autor: |
KARELLAS, Ioannis, TSAKALAKIS, Christos, SOYRLAS, Sotirios, LIAPIS, Georgios |
| Zdroj: |
Balkan Military Medical Review; 2014 Supplement, Vol. 17, p45-45, 1p |
| Abstrakt: |
AIM: The aim of our study was to determine if the measurement of ocular nerve sheath diameter (ONSD) with ocular ultrasound scanning can be used as a simple and easily performed, non-invasive, indirect method for the assessment of intracranial pressure (ICP). MATERIAL - METHOD: In a prospective study, eleven (11) patients (traumatic brain injury, n=7; subarachnoid hemorrhage, n=4) intubated and mechanically ventilated who had severe acute brain injury and monitored with an invasive ICP monitoring were involved. For each episode of sustained elevated ICP (>24mmHg for >5 min), the ONSD was measured in the right and left eye with a 7.5 MHz ultrasound probe and was expressed as a mean value for both eyes. At the same time, cerebral perfusion pressure (CPP) was estimated (CPP= MAP- ICP). All measurements were performed before and just after a 30-minute 350ml NaCl 5% infusion. All patients were receiving a standard mannitol therapy of 100 ml each 6 hours. RESULTS: The mean value of the NaCl dose infused was 0.21g/kg (0.19-0.23 g/kg). In all cases, the ONSD was greater than 6 mm before the infusion. The ONSD was signifi cantly decreased after NaCl 5% infusion from 6 mm (5.5-6.7) to 5 mm (4.5-6.3) (p=0.007). Concomitantly, CPP was increased from 55 (50-60) to 66 (59-70) mmHg (p=0.005). CONCLUSIONS: The ultrasound measurement of ONSD can be used for the evaluation of the intracranial pressure and for the effi cacy of treatment in patients with acute brain injury. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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