Introduction
To investigate the effect of bilateral thoracic paravertebral nerve block(BTPVB)combined
with general anesthesia on bridging vascular flow in OPCABG.
Methods
Fifty patients were randomly divided into two groups randomly:BTPVB combined with
general anesthesia group (T group,n=20) and general anesthesia group (G group,n=30).
Before anesthesia induction, the patients in group T underwent bilateral thoracic
paravertebral space puncture through T4-5 space. The experimental dose of 1% lidocaine
5 ml was injected on both sides, and the first dose of 0.375% ropivacaine 15 ml was
given 2 minutes later.Primary Outcome Measures: Immediate flow and pulse index of
bridge vessels were recorded in both groups. Secondary Outcome Measures: Dosages of
intraoperative anesthetic drugs were recorded in both groups. After the placement
of the floating catheter (T1), after the sternotomy (T2), after the completion of
anastomosis of all bridging vessels (T3), and before the exit of the chamber (T4),
HR MAP, CVP, MPAP, CCO, SVRI and PVRI were recorded.
Results
The level of pain block after BTPVB in T group was 5.1 and 0.6 segments, as shown
and G group, and CVP at T3 and T4 in T group SVRI and PVRI were significantly decreased
(P<0.05), and CCO was significantly increased (P<0.05). Compared with group G, the
incidence of tachycardia in the operation center in group T was significantly decreased
(P<0.05), the incidence of hypotension and the use rate of noradrenaline were significantly
increased (P<0.05), and the intraoperative sufentanil in group T was significantly
decreased (P<0.05).Compared with group G, after OPCABG, the blood flow of the lima-lad
bridge in group T was significantly increased (P<0.05), and the vascular pulse index
of the bridge was significantly decreased (P<0.05).
Discussion
BTPVB combined with general anesthesia has obvious analgesic effect significantly
increased the vascular flow of the left internal thoracic artery bridge and decreased
the vascular pulse index of the left internal thoracic artery bridge after OPCABG.
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Journal of Cardiothoracic and Vascular AnesthesiaAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
Article info
Identification
Copyright
© 2021 Published by Elsevier Inc.
