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Rapid Identification of Microbial Pathogens in Intra-abdominal Infections Using Multiplex PCR

2026年4月24日更新者：Dr. T. Perl、University of Göttingen

With this study, the investigators want to determine whether a fast identification of microorganisms causing intra-abdominal infections in patients with suspected hollow organ perforation or peritonitis is possible using a multiplex PCR system (Unyvero A50), a method that allows rapid detection of predefined bacterial and fungal targets directly from clinical samples. Therefore, intra-abdominal peritoneal fluid samples collected during surgery will be analyzed by multiplex PCR and by conventional microbiological culture. The investigators want to determine whether multiplex PCR diagnostics could provide results faster than conventional microbiological methods and deliver additional information on pathogen detection.

研究概览

地位

完全的

条件

详细说明

This prospective observational study evaluates a rapid multiplex PCR system (Unyvero A50, Curetis) as an adjunct to conventional microbiological culture (cMB) in adult patients undergoing surgery for suspected hollow viscus perforation or peritonitis. During surgery, two intra-abdominal peritoneal fluid samples will be collected. One sample will be processed by routine aerobic and anaerobic culture at the microbiology laboratory. The second sample will be analyzed postoperatively using multiplex PCR at the surgical intensive care unit according to the manufacturer's instructions.

The study will compare turnaround time and concordance of pathogen detection between multiplex PCR and cMB. Additional descriptive analyses will include pathogen group distributions, polymicrobial findings, and results by anatomical site of perforation. Resistance markers detected by PCR will be recorded descriptively. Invalid PCR results will be documented and excluded from paired analyses.

研究类型

观察性的

注册 (实际的)

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

德国
- - Göttingen、德国、37075
    - University Medical Center Göttingen

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

成人
年长者

接受健康志愿者

不

取样方法

非概率样本

研究人群

Patients with suspected hollow organ perforation at the University Medical Center Göttingen, who underwent surgical treatment and were admitted to the intensive care unit for postoperative care

描述

Inclusion Criteria:

suspected hollow organ perforation
suspected peritonitis
patient underwent surgical treatment
microbiological testing of intra-abdominal fluid was needed

Exclusion Criteria:

patient in moribund conditions
patient already enrolled in an interventional clinical trial
patient under 18

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

研究衡量的是什么？

主要结果指标

结果测量	措施说明	大体时间
Time to availability of multiplex PCR result (in days) 大体时间：Up to 1 day post-sampling	Time from intraoperative peritoneal fluid sampling to availability of the multiplex PCR result (reported in days)	Up to 1 day post-sampling
Time to availability of conventional microbiological culture result (in days) 大体时间：Up to 7 days post-sampling	Time from intraoperative peritoneal fluid sampling to availability of the final conventional microbiological culture report (reported in days)	Up to 7 days post-sampling

次要结果测量

结果测量	措施说明	大体时间
Concordance of pathogen detection between multiplex PCR and conventional culture 大体时间：Perioperative (up to 7 days post-sampling)	Proportion of evaluable sample pairs with complete concordance of pathogen detection between multiplex PCR and conventional microbiological culture	Perioperative (up to 7 days post-sampling)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

University of Göttingen

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2018年6月1日

初级完成 (实际的)

2020年6月1日

研究完成 (实际的)

2020年12月31日

研究注册日期

首次提交

2026年4月19日

首先提交符合 QC 标准的

2026年4月24日

首次发布 (实际的)

2026年5月1日

研究记录更新

最后更新发布 (实际的)