The Neodymium, Yttrium, Aluminum, Garnet(Nd YAG) laser emits an invisible wave length of 1.06 microns. A Helium laser superimposes a red light to spot the tissue. The light can be delivered by a hand gun or via a quartz fiber that can be passed through an endoscopic channel. The laser beam is only partially absorbed by hemoglobin and water but penetrates 5-7 mms. into dark tissue protein. It can effectively coagulate fairly large vessels and ablate tissue. It is a fair cutting tool separating the lesion from the underlying rectal muscles and keeping the operative field dry by coagulating vessels thus preserving the specimen for pathology. It can vaporize large bulky tumors.

1.
Swain
,
C.P.
,
Endoscopic
Nd
: YAG Laser Control of Gastrointestinal Bleeding, In
Joffe
SN
 eds.
Neodymium YAG Laser in Medicine and Surgery
,
New York
:
Elsevier
1983
:pg.
16
–
28
Google Scholar
 
2.
Same (IBED)
pg.
21
3.
Frank
,
F.
,
Halldorson
,
T.
,
Eye Safety Requirements for Nd YAG Laser Application in Gastroenterology
,
Urology and Neurosurgery: Lasers in Medicine and Surgery
1984
;
4
:
233
–
40
Google Scholar
 
4.
Kefhaber
,
P.
, Endoscopic Nd YAG Laser Control of Gastrointestinal Bleeding in
Joffe
SN
 eds.
Neodymium Nd YAG Laser in Medicine and Surgery
,
New York
:
Elsevier
1983
:
6
–
14
Google Scholar
 
5.
Chen
,
C.
,
Wu
,
C.
,
Chien
,
C.
,
Liaw
,
Y.
,
YAG Laser Endoscopy of An Esophageal and Sigmoid Stricture After End to End Anastomosis Stapling
,
Gastrointestinal Endoscopy
1984
;
30
:
258
https://doi.org/10.1016/S0016-5107(84)72401-1
Google Scholar
Crossref
Search ADS
PubMed
 
6.
Fleischer
,
D.
,
Endoscopic Laser Therapy for Gastrointestinal Diseases
,
Todays Prac. Med.
1984
,
144
:
1225
Google Scholar
 
7.
Kefhaber
,
P.
,
Nath
,
E.
,
Moritz
,
K.
,
Endoscopic Control of Massive Gastrointestinal Hemorrhage by Irradiation With a High Power Neodymium Nd YAG Laser
;
Prog. Surg.
1977
;
15
–
40
Google Scholar
 
8.
Cello
,
J.
,
Melnick
,
J.
,
Meiselman
,
K.
,
Endoscopic Neodymium YAG Laser Treatment of Nonresectable Gastrointestinal Tract Cancer
,
Western J. Med.
,
1985
142
:
42
–
44
Google Scholar
 
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© 1986 Laser Institute of America.
1986
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