Li You , Ru-meng Ding , Ting-ting Liu , Hai-yang Meng , Duo-lu Li
{"title":"静脉与静脉联合鞘内/脑室注射多粘菌素B治疗鲍曼不动杆菌颅内感染的疗效比较:回顾性研究。","authors":"Li You , Ru-meng Ding , Ting-ting Liu , Hai-yang Meng , Duo-lu Li","doi":"10.1016/j.jgar.2025.05.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>Intracranial infections caused by <em>Acinetobacter baumannii</em> (<em>A. baumannii</em>) are common and life-threatening. This study aimed to compare the clinical efficacy and risk factors associated with 30-d mortality rates between intravenous (IV) polymyxin B and a combination of intravenous (IV) with intrathecal (IVT)/intracerebral (ITH) polymyxin B in the treatment of this type of intracranial infection.</div></div><div><h3>Methods</h3><div>This retrospective study analysed patients with <em>A. baumannii</em> intracranial infections treated from November 2018 to March 2023. Based on the established inclusion and exclusion criteria, 57 patients were included in the study. Patients treated with IV polymyxin B combined with IVT/ITH polymyxin B were assigned to the IV plus IVT/ITH group, while those treated solely with IV polymyxin B were assigned to the IV group. Baseline characteristics and treatment outcomes were systematically collected and analysed. Kaplan-Meier survival analysis and multivariate logistic regression analysis were performed.</div></div><div><h3>Results</h3><div>The study involved 57 patients who acquired <em>A. baumannii</em> intracranial infection. The cure rate was 31.6% (18/57) and a 30-d mortality rate of 33.3% (19/57). Compared to the IV group, the IV plus IVT/ITH group demonstrated a higher cure rate (15.4% vs. 45.2%, <em>P</em> = 0.034) and lower 30-d mortality (50.0% vs. 19.4%, <em>P</em> = 0.015). Multivariate logistic regression analysis indicated that the absence of IVT/ITH polymyxin B (<em>P</em> = 0.043) and the preexisting renal insufficiency at admission (<em>P</em> = 0.027) were independently associated with increased 30-d mortality.</div></div><div><h3>Conclusions</h3><div>The combination of IV and IVT/ITH polymyxin B administration represents an effective therapeutic strategy for <em>A. baumannii</em> infections, demonstrating higher cure rates, significantly reduced 30-d mortality, and a substantial survival advantage. Notably, ITH/IVT treatment does not appear to increase the incidence of neurotoxicity. However, the true incidence of neurotoxicity associated with IVT/ITH polymyxin B may be underestimated.</div></div>","PeriodicalId":15936,"journal":{"name":"Journal of global antimicrobial resistance","volume":"44 ","pages":"Pages 81-88"},"PeriodicalIF":3.2000,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparative efficacy of intravenous versus intravenous combined with intrathecal/intracerebral ventricle injection of polymyxin B for Acinetobacter baumannii intracranial infection: A retrospective study\",\"authors\":\"Li You , Ru-meng Ding , Ting-ting Liu , Hai-yang Meng , Duo-lu Li\",\"doi\":\"10.1016/j.jgar.2025.05.002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Objective</h3><div>Intracranial infections caused by <em>Acinetobacter baumannii</em> (<em>A. baumannii</em>) are common and life-threatening. This study aimed to compare the clinical efficacy and risk factors associated with 30-d mortality rates between intravenous (IV) polymyxin B and a combination of intravenous (IV) with intrathecal (IVT)/intracerebral (ITH) polymyxin B in the treatment of this type of intracranial infection.</div></div><div><h3>Methods</h3><div>This retrospective study analysed patients with <em>A. baumannii</em> intracranial infections treated from November 2018 to March 2023. Based on the established inclusion and exclusion criteria, 57 patients were included in the study. Patients treated with IV polymyxin B combined with IVT/ITH polymyxin B were assigned to the IV plus IVT/ITH group, while those treated solely with IV polymyxin B were assigned to the IV group. Baseline characteristics and treatment outcomes were systematically collected and analysed. Kaplan-Meier survival analysis and multivariate logistic regression analysis were performed.</div></div><div><h3>Results</h3><div>The study involved 57 patients who acquired <em>A. baumannii</em> intracranial infection. The cure rate was 31.6% (18/57) and a 30-d mortality rate of 33.3% (19/57). Compared to the IV group, the IV plus IVT/ITH group demonstrated a higher cure rate (15.4% vs. 45.2%, <em>P</em> = 0.034) and lower 30-d mortality (50.0% vs. 19.4%, <em>P</em> = 0.015). Multivariate logistic regression analysis indicated that the absence of IVT/ITH polymyxin B (<em>P</em> = 0.043) and the preexisting renal insufficiency at admission (<em>P</em> = 0.027) were independently associated with increased 30-d mortality.</div></div><div><h3>Conclusions</h3><div>The combination of IV and IVT/ITH polymyxin B administration represents an effective therapeutic strategy for <em>A. baumannii</em> infections, demonstrating higher cure rates, significantly reduced 30-d mortality, and a substantial survival advantage. Notably, ITH/IVT treatment does not appear to increase the incidence of neurotoxicity. However, the true incidence of neurotoxicity associated with IVT/ITH polymyxin B may be underestimated.</div></div>\",\"PeriodicalId\":15936,\"journal\":{\"name\":\"Journal of global antimicrobial resistance\",\"volume\":\"44 \",\"pages\":\"Pages 81-88\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of global antimicrobial resistance\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213716525001067\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"INFECTIOUS DISEASES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of global antimicrobial resistance","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213716525001067","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
Comparative efficacy of intravenous versus intravenous combined with intrathecal/intracerebral ventricle injection of polymyxin B for Acinetobacter baumannii intracranial infection: A retrospective study
Objective
Intracranial infections caused by Acinetobacter baumannii (A. baumannii) are common and life-threatening. This study aimed to compare the clinical efficacy and risk factors associated with 30-d mortality rates between intravenous (IV) polymyxin B and a combination of intravenous (IV) with intrathecal (IVT)/intracerebral (ITH) polymyxin B in the treatment of this type of intracranial infection.
Methods
This retrospective study analysed patients with A. baumannii intracranial infections treated from November 2018 to March 2023. Based on the established inclusion and exclusion criteria, 57 patients were included in the study. Patients treated with IV polymyxin B combined with IVT/ITH polymyxin B were assigned to the IV plus IVT/ITH group, while those treated solely with IV polymyxin B were assigned to the IV group. Baseline characteristics and treatment outcomes were systematically collected and analysed. Kaplan-Meier survival analysis and multivariate logistic regression analysis were performed.
Results
The study involved 57 patients who acquired A. baumannii intracranial infection. The cure rate was 31.6% (18/57) and a 30-d mortality rate of 33.3% (19/57). Compared to the IV group, the IV plus IVT/ITH group demonstrated a higher cure rate (15.4% vs. 45.2%, P = 0.034) and lower 30-d mortality (50.0% vs. 19.4%, P = 0.015). Multivariate logistic regression analysis indicated that the absence of IVT/ITH polymyxin B (P = 0.043) and the preexisting renal insufficiency at admission (P = 0.027) were independently associated with increased 30-d mortality.
Conclusions
The combination of IV and IVT/ITH polymyxin B administration represents an effective therapeutic strategy for A. baumannii infections, demonstrating higher cure rates, significantly reduced 30-d mortality, and a substantial survival advantage. Notably, ITH/IVT treatment does not appear to increase the incidence of neurotoxicity. However, the true incidence of neurotoxicity associated with IVT/ITH polymyxin B may be underestimated.
期刊介绍:
The Journal of Global Antimicrobial Resistance (JGAR) is a quarterly online journal run by an international Editorial Board that focuses on the global spread of antibiotic-resistant microbes.
JGAR is a dedicated journal for all professionals working in research, health care, the environment and animal infection control, aiming to track the resistance threat worldwide and provides a single voice devoted to antimicrobial resistance (AMR).
Featuring peer-reviewed and up to date research articles, reviews, short notes and hot topics JGAR covers the key topics related to antibacterial, antiviral, antifungal and antiparasitic resistance.