Test of Chamber Pressure to Divers and Chamber Attendants

• Status: Completed
• Trial end date: 2011-10-01
• Target enrollment: 0
• Participant gender: All

Summary

SCUBA divers and chamber inside attendants will undergo a brief hyperbaric chamber excursion and will be asked to what chamber pressure they were compressed and what gas they breathed.

• Phase: N/A
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Intermountain Health Care, Inc.

Criteria

Inclusion Criteria:

• Adult, age 18 - 65 years

• Completion of medical history questionnaire without concerns identified for exposure to increased pressure

• Familiarity with atmospheric pressure change:

• Experienced and active hyperbaric chamber inside attendant: more than 50 hyperbaric compressions, with more than 4 have been in the last 4 months; or

• Experienced and active SCUBA diver: more than 20 lifetime compressed gas open water (not swimming pool) dives, with more than 10 in the last 12 months

• Able to equalize middle ear pressure easily

Exclusion Criteria:

• Pregnancy

• Known risk for barotrauma, as identified on the medical history questionnaire, such as:

• Recent (within 12 months) inner ear or sinus surgery

• Spontaneous pneumothorax

• Pulmonary cysts

• Emphysema

• Bullous lung disease

• Chronic obstructive pulmonary disease needing chronic active therapy

• Inability to tolerate chamber confinement or pressure

• Presence of heart failure

• Presence of any implanted electrical device, except hyperbaric-approved pacemakers

• Presence of middle-ear tympanostomy tubes