Page 214 - Clinical Manual of Small Animal Endosurgery

202 Clinical Manual of Small Animal Endosurgery

(a)

(b)
Fig. 6.25 (a) Extracorporeal knot loop-ligature lung biopsy using 3 mm
instruments. The 5.5 mm soft Thoracoport allows extraction through the
port of the 2 cm biopsy sample. (b) View of a peripheral loop-ligature
(extracorporeal knot) lung biopsy site.

will also rotate the loop should this be twisted or lie incorrectly. A closed-
end knot pusher (i.e. with a hole at the distal end) is preferable to the
open or grooved knot pusher most commonly offered by veterinary sup-
pliers, which is more difficult to manipulate, and doesn’t allow for as
precise knot positioning. Knot pushers are available in 5 and 3 mm pae-
diatric diameters.
Removal of larger lesions, wedge excisional biopsies and partial or
complete lobectomies require the use of endoscopic staplers. As a rough
guide, a 2.0 or 2.5 mm staple leg length is generally suitable for most
peripheral lung, while partial or complete lobectomy in medium and
larger dogs usually requires a 3.5 mm staple leg length. The short 30 mm-