Table 6:

Adverse Events Occurring in Included Studies

Author, Year	HBOT (n)	Control (n)	Types of Adverse Event
Without sham treatment
Faglia et al, 199630	2/35	0/33	Barotraumatic otitis
Kalani et al, 200234	2/17	0/21	Cataracts Pain in ears
Kessler et al, 200331	2/14	0/13	Barotraumatic otitis
With sham treatment
Abidia et al, 200328	0/8	0/8	N/A
Londahl et al, 201032	7/38	8/37	HBOT 2 patients had hypoglycemia 1 patient experiences barotraumatic otitis 2 patients required myringotomy with tube placement owing to pain caused by the inability to equilibrate air pressure through the Eustachian tube 1 patient experienced treatment-related dizziness 1 patient experienced worsening of cataracts Control 1 patient temporarily lost consciousness after a treatment session 4 patients had hypoglycemia 2 patients required myringotomy with tube placement owing to pain caused by the inability to equilibrate air pressure through the Eustachian tube 1 patient experienced a minor head injury after a fall inside the hyperbaric chamber
Fedorko et al, 201635	15/48	5/39	HBOT 1 patient experienced an episode of congestive heart failure 9 patients experienced an inability to equalize middle ear pressure during treatment 4 patients experienced a hypoglycemic episode Control 3 patients experienced an inability to equalize middle ear pressure during treatment 2 patients experienced a hypoglycemic episode

Abbreviations: HBOT, hyperbaric oxygen therapy; N/A, not available.