The RSTC Guidelines for Recreational Scuba Diver’s Physical Examination Include as Severe Risk Conditions:
Neurological:
“History of Serious (Central Nervous System, Cerebral or Inner Ear) Decompression Sickness with residual deficits.”
Otolaryngological:
“History of vestibular decompression sickness.”
Cardiovascular:
“Venous emboli, commonly produced during decompression, may cross major intracardiac right-to-left shunts and enter the cerebral or spinal cord circulations causing neurological decompression illness.”
So the candidates seem to include at least: some types of serious DCS and/or something like a previously undiagnosed PFO. Of course it would depend on the specific damage, and how serious his physician felt the condition was.
Source document at: http://www.wrstc.com/downloads.php
Neurological:
“History of Serious (Central Nervous System, Cerebral or Inner Ear) Decompression Sickness with residual deficits.”
Otolaryngological:
“History of vestibular decompression sickness.”
Cardiovascular:
“Venous emboli, commonly produced during decompression, may cross major intracardiac right-to-left shunts and enter the cerebral or spinal cord circulations causing neurological decompression illness.”
So the candidates seem to include at least: some types of serious DCS and/or something like a previously undiagnosed PFO. Of course it would depend on the specific damage, and how serious his physician felt the condition was.
Source document at: http://www.wrstc.com/downloads.php