COVID-19中β -内酰胺剂量不足的情况并不比非COVID-19危重症患者更频繁。

IF 2.2 4区医学 Q2 INFECTIOUS DISEASES

Infectious diseases now Pub Date : 2025-08-21 DOI:10.1016/j.idnow.2025.105137

Maeva Palayer , Juliette Bernier , Emmanuel Pardo , Franck Verdonk , Tomas Urbina , Emmanuel Bourgogne

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引用次数: 0

摘要

目的：COVID-19与呼吸机相关性肺炎复发率高相关。由于肾脏清除率增强导致的抗生素剂量不足被认为是一个可能的因素。这项回顾性研究比较了COVID-19危重患者和非COVID-19患者血浆β -内酰胺浓度。患者和方法：我们纳入了头孢噻肟、头孢他啶、头孢吡肟和哌拉西林的测定。使用多变量逻辑回归模型来识别与剂量不足相关的变量。结果：126例患者共纳入361份样本。在COVID-19和非COVID-19患者中，任何分子的中位浓度没有差异，剂量不足率也没有差异（38 % vs 42 %,p = 0.68）。在调整年龄、性别、BMI、肌酐清除率和β -内酰胺分子类型的logistic回归模型中，COVID-19状态与剂量不足无关（OR = 0.83 [0.38-1.83],p = 0.997）。结论：尽管超过三分之一的COVID-19危重患者出现了最常用的β -内酰胺类药物剂量不足的情况，但这一比例与非COVID-19患者没有差异。

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Beta-lactam underdosing is not more frequent in COVID-19 than in non-COVID-19 critically ill patients

Objectives

COVID-19 has been associated with high rates of ventilator-associated pneumonia relapse. Antibiotic underdosing due to augmented renal clearance (ARC) has been suggested as a possible contributing factor. This retrospective study compared plasmatic beta-lactam concentrations between critically-ill COVID-19 and non-COVID-19 patients.

Patients and methods

We included measurements for cefotaxime, ceftazidime, cefepime and piperacillin. A multivariable logistic regression model was used to identify variables associated with underdosing.

Results

All in all, 361 samples were included from 126 patients. Median concentrations did not differ between COVID-19 and non-COVID-19 patients for any molecule, nor did the rate of underdosing (38 % vs 42 %, p = 0.68). In a logistic regression model adjusting for age, gender, BMI, creatinine clearance and type of beta-lactam molecule, COVID-19 status was not associated with underdosing (OR = 0.83 [0.38–1.83], p = 0.997).

Conclusions

Although underdosing of most commonly prescribed beta-lactams occurred in more than one third of cases in critically-ill COVID-19 patients, this rate did not differ from non-COVID-19 patients.

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