Appendectomy in rabbits with extended unilateral anesthesia.
Thoracic paravertebral anesthesia was not believed to accompany numbness in the lumbar nerve region. However, we recently discovered that thoracic paravertebral anesthesia could produce analgesia in the lumbar region. We called this block extended unilateral anesthesia. In this study, appendectomy was attempted in rabbits with extended unilateral anesthesia. After a catheter was inserted into the endothoracic fascia in the paravertebral region on the right side at the level of the 11th thoracic vertebra, a 3-ml dose of 2% mepivacaine was injected repeatedly through the catheter. After an injection of the local anesthetic we could observe motor and sensory paralysis unilaterally from the chest down to the lower limb in all the rabbits, the extended unilateral anesthesia. With this anesthesia, we could accomplish appendectomy. This is the initial report of extended unilateral anesthesia applied to appendectomy in rabbits. We think that this anesthesia could be beneficial in future medical and veterinary use.
Saito
Toshiyuki
T
Department of Anatomy, Nippon Medical School, 1236-7 Kagawa, Chigasaki-City, Kanagawa 253-0082, Japan.
Tanuma
Kumiko
K
Tanuma
Yutaka
Y
Futami
Choichiro
C
Shichinohe
Kazuhiro
K
Shimizu
Madoka
M
Sasako
Mitsuru
M
Shafland
James
J
Wang
Boarderman C
BC
Carlsson
Christer
C
Carney
Edward
E
D000698:Analgesia; D000758:Anesthesia / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage; D000818:Animals; D001062:Appendectomy; D002404:Catheterization; D005260:Female; D008159:Lumbar Vertebrae; D008619:Mepivacaine / Q000008:administration & dosage; D011817:Rabbits; D013904:Thoracic Vertebrae
D000779:Anesthetics, Local; D008619:Mepivacaine