CHOU Xiaohua,ZHANG Qian,LIU Zhidong,et al.Effects of biapenem on the blood concentration of sodium valproate in patients with severe infections: a retrospective study[J].ZHONGGUO YAOFANG,2025,36(24):3079-3083.
CHOU Xiaohua,ZHANG Qian,LIU Zhidong,et al.Effects of biapenem on the blood concentration of sodium valproate in patients with severe infections: a retrospective study[J].ZHONGGUO YAOFANG,2025,36(24):3079-3083. DOI: 10.6039/j.issn.1001-0408.2025.24.11.
Effects of biapenem on the blood concentration of sodium valproate in patients with severe infections: a retrospective study
To analyze the effects of biapenem on the blood concentration of sodium valproate (VPA) in patients with severe infections.
METHODS
2
A retrospective collection of patient data was conducted, encompassing individuals admitted to our hospital from January 2021 to May 2024 who were treated with biapenem for severe infections and concurrently or sequentially administered VPA for the prevention or treatment of epilepsy. The effects of various factors on the blood concentration of VPA, including the combination of biapenem, the sequence of biapenem administration, the number of days of biapenem combination, the dosage of biapenem, and the time after biapenem discontinuation.
RESULTS
2
A total of 70 patients with 117 VPA blood concentration results were included in this study. When VPA was used alone, no statistically significant difference was observed in the steady-state blood concentrations of VPA between patients who received biapenem first and those who received it later (
P
>0.05). There was no statistically significant difference between the steady-state concentration of VPA in patients who received biapenem in combination for 1 to 3 days and those who did not receive the combination therapy (
P
>0.05). The steady-state concentration of VPA in patients not receiving biapenem combination therapy was significantly higher than that of the patients who received combination therapy for 4 to 7 days and more than 7 days (
P
<0.001). With the prolonged duration of combination therapy, the blood concentration of VPA gradually decreased (
P
<0.001). However, no statistically significant difference was observed between the group receiving combination therapy for more than 7 days and the group receiving it for 4 to 7 days (
P
>0.05). After 1 to 3 days of combination therapy, no statistically significant differences in VPA blood concentrations were observed among patients with different discontinuation times of biapenem (
P
>0.05). The blood concentration of VPA in patients who received combination therapy for more than 3 days was significantly lower than those who discontinued biapenem 4 to 7 days or more than 7 days after more than 3 days of combination therapy(
P
<0.001). There was no statistically significant difference in VPA blood co
ncentrations between patients receiving a daily biapenem dose >1.0 g and those receiving a daily dose <1.0 g (
P
>0.05).
CONCLUSIONS
2
The concomitant administration of biapenem for 1-3 days has a minimal impact on the blood concentration of VPA. In patients receiving combination therapy for longer than 3 days, VPA blood concentrations return to baseline levels within 4-7 days after biapenem discontinuation.
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