A technique for safe, frequent biopsy of the liver after hepatic transplantation.

Valuable information can be obtained from the hepatic biopsy in patients undergoing hepatic transplantation. Biopsy of the liver can be repeatedly performed safely even in patients with severely deranged clotting function by using the technique described herein. This simple technique provides the window through which the immunologic and metabolic causes of hepatic dysfunction may be more clearly viewed and intelligently studied.