PMID- 1407607
OWN - NLM
STAT- MEDLINE
DCOM- 19921123
LR  - 20191021
IS  - 0344-5607 (Print)
IS  - 0344-5607 (Linking)
VI  - 15
IP  - 3
DP  - 1992
TI  - The use of Nd:YAG laser in pituitary surgery and evaluation of visual function by 
      visual evoked potential (VEP).
PG  - 193-7
AB  - Surgery of pituitary tumors has been improved by microneurosurgical methods. 
      However, despite improvements in surgical results, pituitary tumors still 
      continue to represent a problem and, therefore, prompt a search for new surgical 
      techniques. Since Nd:YAG laser energy penetrates the target tissue more deeply 
      than other instruments, its use in the para- and suprasellar region should be 
      considered. It is well known that Visual Evoked Potential (VEP) is a sensitive 
      and objective method for the valuation of compressive or destructive lesions in 
      or around the optic nerve. Visual function correlates with the latency and 
      amplitude of P100 wave in VEP. We used the Nd:YAG laser in 50 transsphenoidal 
      operations of pituitary adenomas. Postoperative effects of the laser on visual 
      function was evaluated by conventional neurophthalmological tests as well as VEP 
      and was compared with preoperative values. Following surgery using Nd:YAG laser, 
      both conventional neurophthalmological tests and VEP values improved due to 
      decompression of optic nerves by tumor removal. In this study, we also examined 
      anterior lobe functions and found that Nd:YAG laser does not affect these 
      functions. Our study shows that Nd:YAG laser has no harmful effects and seems to 
      be very helpful especially for surgery for invading hormone-active adenomas.
FAU - Gokalp, H Z
AU  - Gokalp HZ
AD  - Department of Neurosurgery and Neurology, School of Medicine University of 
      Ankara, Turkey.
FAU - Egemen, N
AU  - Egemen N
FAU - Culcuoglu, A
AU  - Culcuoglu A
FAU - Naderi, S
AU  - Naderi S
FAU - Zorlutuna, A
AU  - Zorlutuna A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Neurosurg Rev
JT  - Neurosurgical review
JID - 7908181
SB  - IM
MH  - Adenoma/physiopathology/*surgery
MH  - Adolescent
MH  - Adult
MH  - Evoked Potentials, Visual/*physiology
MH  - Female
MH  - Humans
MH  - *Laser Therapy
MH  - Male
MH  - Middle Aged
MH  - Optic Nerve/physiopathology
MH  - Pituitary Neoplasms/physiopathology/*surgery
MH  - Postoperative Complications/*physiopathology
MH  - Reaction Time/physiology
MH  - Visual Pathways/physiopathology
EDAT- 1992/01/01 00:00
MHDA- 1992/01/01 00:01
CRDT- 1992/01/01 00:00
PHST- 1992/01/01 00:00 [pubmed]
PHST- 1992/01/01 00:01 [medline]
PHST- 1992/01/01 00:00 [entrez]
AID - 10.1007/BF00345930 [doi]
PST - ppublish
SO  - Neurosurg Rev. 1992;15(3):193-7. doi: 10.1007/BF00345930.