| 英文摘要 |
Healthcare-Associated Bloodstream Infection ( HA-BSI ) is common in health care settings. In order to detect HA-BSI cases infection control professionals ( ICPs ) have to collect relevant data for justifying whether the cases are true infection cases. Because the data are distributed on different hospital information systems, data collection is time-consuming and costly. It is important to build a bloodstream infection surveillance system based on the CDC’s guideline. The system would provide assistance in data collection and case finding for nosocomial infection surveillance, control and prevention. The bloodstream infection surveillance system includes three modules: ( 1 ) Automated data collection module is to collect data on hospital information systems. The data include laboratory reports, susceptibility tests, medication records, symptom records, and administrative data. ( 2 ) Electronic surveillance algorithm module is for creating electronic surveillance algorithms based on the existing manual surveillance practices methods, and detecting suspected BSI cases. ( 3 ) Bloodstream infection data view module is to provide infection control professionals to check patients’ clinical data and laboratory test results. In this study, we performed retrospective analysis to validate the system. The subjects were the patients admitted to a regional hospital from March 1 to May 30, 2011. Sensitivity and specificity are used for comparison between the suspected BSI cases generated by the system and the true BSI cases found by the infection control professionals. The total number of patients involved in the study was 6334. Among them, the number of positive results of culture tests was 3209, and the number of true BSI cases was 54. The system generated 73 suspected cases. Thus, sensitivity and specificity of the system were 100% and 98%, respectively. The ICPs had to investigate only 473 positive lab tests for those 73 patients. Compare to the manual surveillance method, which investigates patients with the positive results of culture tests, the ICPs saved up to 85% of the investigation effort with the assistance of the system. |