ABSTRACT
This chapter includes many less known or less appreciated disorders which have not been well defined. With future editions, some of these topics will warrant their own chapters.
CAROTID SINUS SYNDROME
Pressure may be exerted over the carotid sinus by tight-fitting wet suits, especially when they are of the 'pullover' variety without zippers. Most divers will be
aware of the unpleasant sensation while wearing these, and will cut the neckline to release the pressure before other symptoms supervene. Others manually hold the collar open. In some cases, the sensation of confusion and disorientation may have a demonstrable nystagmus associated with it. Such cases may be verified by electronystagmography. Other mechanisms may be needed to explain some of these cases.
