Figure 2
Physiological parameters before, during and after Hydrogen (H 2 ) inhalation. Physiological parameters of case 1, before (5 min before), during (0-30min) and after (30 min to 60 min-) inhalation of H2 (4% in air), obtained simultaneously with the measurement of blood HC as in the Figure 1. These parameters and close clinical observation showed no significant changes except some indices related to respiration pattern such as hyperventilation or breath holding which were commonly seen among neurologically compromised patients with normal conscious level.