Treatment of placental vasculature with a neodymium-yttrium-aluminum-garnet laser via fetoscopy.
We tested the feasibility of treating placental vascular anomalies with a fetoscopically delivered neodymium-yttrium-aluminum-garnet laser in pregnant ewes. This laser provided sufficient power in an amniotic fluid medium to occlude placental vessels as large as 7 mm in diameter within 6 seconds at a power density of 2000 W/cm2.
D000818:Animals; D001157:Arterial Occlusive Diseases / Q000601:surgery; D001158:Arteries / Q000601:surgery; D005260:Female; D005332:Fetoscopy; D053685:Laser Therapy; D010920:Placenta / Q000098:blood supply / Q000601:surgery*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012756:Sheep; D014652:Vascular Diseases / Q000601:surgery; D014680:Veins / Q000601:surgery