Moran WANG, Jian HUANG, Ning ZHANG, et al. Protective effect of methylene blue on postoperative liver and kidney functions in patients with obstructive jaundice[J]. Journal of Third Military Medical University, 2021, 43(14): 1379-1383.
DOI:
Moran WANG, Jian HUANG, Ning ZHANG, et al. Protective effect of methylene blue on postoperative liver and kidney functions in patients with obstructive jaundice[J]. Journal of Third Military Medical University, 2021, 43(14): 1379-1383. DOI: 10.16016/j.1000-5404.202102014.
Protective effect of methylene blue on postoperative liver and kidney functions in patients with obstructive jaundice
To determine the effect of intraoperative methylene blue infusion on postoperative liver and kidney functions in patients with obstructive jaundice.
Methods
2
A total of 50 patients with serum total bilirubin level higher than 34.2 μmol/L undergoing biliary obstruction surgery in our hospital from July 2019 to December 2020 were included in this study. They were randomly and equally divided into methylene blue group (infusion of 50 mL 2 mg/kg methylene blue before anesthesia intubation followed by 0.5 mg·kg
-1
·h
-1
continuous infusion during the operation) and placebo group (same amount of normal saline throughout the operation). Intraoperative mean arterial pressure
intake and output and norepinephrine usage
and postoperative oxygenation index
and the levels of total bilirubin
total bile acid
aspartate aminotransferase
alanine aminotransferase
creatinine and urea nitrogen were compared between the 2 groups.
Results
2
There was no significant difference in the mean arterial pressure be
tween the 2 groups of patients (
P
>
0.05). The methylene blue group had significantly less amounts of Ringer's lactate solution (1 788.22±562.67
vs
2 635.32±633.45 mL) and norepinephrine (1.43±0.42
vs
4.11±1.14 mg)
and lower ratio of norepinephrine use (32%
vs
52%) than the placebo group (
P
<
0.01). The extubation time and ICU stay time were obviously shorter in the former than the latter group (
P
<
0.05). But there were no statistical differences in postoperative oxygenation index or postoperative levels of total bilirubin and total bile acid between the 2 groups (
P
>
0.05). The postoperative levels of aspartate aminotransferase in 24 h (200.21±143.33
vs
362.32±253.64 IU/L) and 72 h (123.32±87.44
vs
184.53±143.25 IU/L) and those of alanine aminotransferase at 24 h (192.52±83.23
vs
254.24±93.22 IU/L) and 72 h (183.31±107.92
vs
276.34±111.95 IU/L) were notably lower in the methyl blue group than the placebo group (
P
<
0.05). No significant difference were seen in the postoperative levels of creatinine and urea nitrogen between the 2 groups (
P
>
0.05).
Conclusion
2
Continuous infusion of methylene blue reduces the use of blood pressure drugs in patients with obstructive jaundice
effectively alleviates postoperative liver damage
and thus improves patient safety during the perioperative period.
关键词
Keywords
references
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