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Aviat Space Environ Med. 2013 Sep;84(9):986-9.

Central retinal vein occlusion following hypobaric chamber exposure.

Author information

1
Aerospace Medical Center, Republic of Korea Air Force, Cheongwon-gun, Chungbuk, Korea.

Abstract

BACKGROUND:

Mountain climbers who ascend to a high altitude could suffer high altitude retinopathy, which varies from tortuous retinal vessels and hemorrhages to retinal vascular obstruction. As hypobaric chamber training could imitate a fast ascent and could lead to decompression sickness, a simulated flight could also lead to a high altitude retinopathy.

CASE REPORT:

This paper will present a case of central retinal vein occlusion that occurred after exposure to a hypobaric chamber and Valsalva maneuver. Although the patient was treated with an intravitreal bevacizumab injection, his macular edema was aggravated after a helicopter flight, which involved re-exposure to high altitudes and a Valsalva maneuver.

DISCUSSION:

Systemic evaluation including blood coagulation and carotid Doppler studies did not reveal any lesion. Notably, central retinal vein occlusion can occur in young, healthy individuals after hypobaric chamber exposure.

PMID:
24024312
[Indexed for MEDLINE]
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