Bilateral hemotympanum in a pair of scuba divers

摘要

Two divers with mostly warm water experience took a dive vacation in Baja, CA, as part of a diving group. Both divers had well over 100 dives of experience. There was no significant medical history in diver A, whereas diver B had a history of breast cancer. There was no prescription or over-the-counter medication use in either. The water conditions at the dive sites included significant surge and current, poor visibility, and water temperatures (°F) in the mid 60s to lower 70s. This was a once a year boat diving trip for the two, so they underwent the dive despite the conditions. The colder water resulted in the divers wearing 7-mm full neoprene wetsuits over their usual 3-mm wetsuits to stay warm. Because of the increased buoyancy from their wetsuits, the divers were forced to wear more lead on their weight belts than they were accustomed to (20 lb of lead instead of her typical 12 lb for diver A and 18 lb instead of his typical 8 lb for diver B). Air was used as their gas mix.