A "top-down-approach" to insert catheters into the circulation of fetal sheep using ultrasound B-scan.
OBJECTIVE
The objective of the study was the catheterization of vessels in fetal sheep under ultrasound control.


METHODS
A catheter with guiding wire was introduced into the external jugular vein or carotid artery and advanced caudally.


RESULTS
The aorta and umbilical vein could be accessed.


CONCLUSIONS
Major segments of the circulation are accessible from the neck for chronic instrumentation.
Schröder
Hobe J
HJ
Experimental Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. schroede@uke.uni-hamburg.de
Tchirikov
Mikhail
M
D000818:Animals; D002339:Carotid Arteries; D002406:Catheterization, Peripheral / Q000379:methods*; D005333:Fetus; D007601:Jugular Veins; D012756:Sheep