[Effect of continuous extradural infusion of bupivacaine on diaphragmatic function after upper abdominal surgery].
BACKGROUND
Diaphragmatic function is impaired after abdominal surgery. We investigated the effect of continuous extradural infusion of bupivacaine on diaphragmatic function after upper abdominal surgery using respiratory inductive plethysmography (RIP).


METHODS
Ten healthy patients for upper abdominal surgery were divided into two groups; the first group of patients with continuous extradural infusion of morphine (group 1) and the second group of patients with continuous extradural infusion of morphine and bupivacaine (group 2).


RESULTS
On the first day after surgery, there was no significant difference between the visual analogue scale scores in the two groups. Abdominal contribution to tidal volume (VAB/VT) in group 1 was significantly decreased compared to that of the pre-operative value. VAB/VT in group 2 was significantly higher than that in group 1.


CONCLUSIONS
Continuous extradural infusion of bupivacaine improves diaphragmatic function after upper abdominal surgery.
Kiya
Tomohiro
T
Department of Anesthesiology, Sapporo Medical University, School of Medicine, Sapporo 060-8543.
Fujimura
Naoyuki
N
Okanuma
Mioko
M
Namiki
Akiyoshi
A
D000005:Abdomen / Q000601:surgery; D000368:Aged; D000767:Anesthesia, Epidural; D000779:Anesthetics, Local / Q000008:administration & dosage; D002045:Bupivacaine / Q000008:administration & dosage; D003964:Diaphragm / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period
D000779:Anesthetics, Local; D002045:Bupivacaine