Pneumatic Displacement of Subretinal Hemorrhage With Perfluorocarbon Gases

Status unconfirmed · Phase 2

Conditions studied: Subretinal Hemorrhage and Exudative Maculopathy

In brief

Subretinal hemorrhage in the macula causes a significant loss of vision. This hemorrhage can be displaced by the use of a small volume of pure perfluorocarbon gas injected into the vitreous, which expands to a 40% gas bubble in the eye. When the patient gazes 40 to 60 degree below the horizontal, the gas bubble covers the hemorrhage and gravity displaces it rapidly. This position of gaze is easier for the patient than the face down position traditionally recommended.A vector of gravity force tangential to the sclera brings about this displacement. The procedure can improve vision quickly, reduce unwanted degenerative changes in the macula because of the persistent macular hemorrhage and improves the chances of treating of the underlying cause for the subretinal hemorrhage by laser or other means.

Key facts

Study ID

NCT00161525

Run by

Weill Medical College of Cornell University

People needed

25

Starts

2003-10-01

Expected to finish

2009-06-01

Last updated by the study team

2011-01-04

Who can join

Age: 20 and older, up to 95. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Diminished vision secondary to subretinal hemorrhage in the macula or exudative maculopathy.

You may not qualify if…

• Patient unable to maintain gaze position for 20 minutes every waking hour for 7 days.
• Patient unable to sleep on their side or with head elevated 40 degrees.

Where it is running

• New York Presbyterian Hospital — New York, New York, United States (enrolling)

Full record on ClinicalTrials.gov

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