PMC3736547_01
HBOT US NAVY table 6 and table 5. US NAVY table 6 consists of a compression phase about 5 minutes long to depth of 18 msw under 100% oxygen and 4 oxygen cycles lasting 20 minutes each with short air intervals. Then, the patient is decompressed to about 9 msw and exposed to 2 oxygen cycles lasting 60 minutes each and slowly returned to surface pressure. The total elapsed time is about 285 min (4 hrs 45 min). US NAVY table 5 is similar to table 6 but with shorter and lesser oxygen cycles; the total elapsed time is about 135 min, excluding descent. Adapted from http://www.londondivingchamber.co.uk/.
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fig1
HBOT Unit to start a prompt treatment. HBOT was composed of one session using US NAVY table 6 at first, and two sessions of US NAVY table 5 within 12 and 36 hours (Figure 1).
Brain MRI examination (axial T1-weighted sequence). The arrows point to an hypointensity area mainly involving left temporal subcortical white substance. It is likely to be an ischemic lesion with partial hemorrhage. Day 1 after diving session.
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fig2
Brain T1-weighted MRI disclosed a subcortical hypointense area in temporal region corresponding to infarction with partial hemorrhage (Figure 2).