Walsh Thomas J, Bright Rick A, Ahuja Aparna, McCarthy Matthew W, Marfuggi Richard A, Simpson Steven Q
Center for Innovative Therapeutics and Diagnostics, Richmond, Virginia, USA.
The Rockefeller Foundation, Pandemic Prevention Institute, New York, New York, USA.
Open Forum Infect Dis. 2022 Dec 1;10(1):ofac645. doi: 10.1093/ofid/ofac645. eCollection 2023 Jan.
Sepsis is a life-threatening organ dysfunction that is caused by a dysregulated host response to infection. Sepsis may be caused by bacterial, fungal, or viral pathogens. The clinical manifestations exhibited by patients with severe coronavirus disease 2019 (COVID-19)-related sepsis overlap with those exhibited by patients with sepsis from secondary bacterial or fungal infections and can include an altered mental status, dyspnea, reduced urine output, tachycardia, and hypotension. Critically ill patients hospitalized with severe acute respiratory syndrome coronavirus 2 infections have increased risk for secondary bacterial and fungal infections. The same risk factors that may predispose to sepsis and poor outcome from bloodstream infections (BSIs) converge in patients with severe COVID-19. Current diagnostic standards for distinguishing between (1) patients who are critically ill, septic, and have COVID-19 and (2) patients with sepsis from other causes leave healthcare providers with 2 suboptimal choices. The first choice is to empirically administer broad-spectrum, antimicrobial therapy for what may or may not be sepsis. Such treatment may not only be ineffective and inappropriate, but it also has the potential to cause harm. The development of better methods to identify and characterize antimicrobial susceptibility will guide more accurate therapeutic interventions and reduce the evolution of new antibiotic-resistant strains. The ideal diagnostic test should (1) be rapid and reliable, (2) have a lower limit of detection than blood culture, and (3) be able to detect a specific organism and drug sensitivity directly from a clinical specimen. Rapid direct detection of antimicrobial-resistant pathogens would allow targeted therapy and result in improved outcomes in patients with severe COVID-19 and sepsis.
脓毒症是一种危及生命的器官功能障碍,由宿主对感染的失调反应引起。脓毒症可能由细菌、真菌或病毒病原体引起。2019年冠状病毒病(COVID-19)相关脓毒症患者表现出的临床表现与继发细菌或真菌感染所致脓毒症患者的临床表现重叠,可能包括精神状态改变、呼吸困难、尿量减少、心动过速和低血压。因严重急性呼吸综合征冠状病毒2感染住院的重症患者发生继发细菌和真菌感染的风险增加。可能导致脓毒症和血流感染(BSIs)不良结局的相同危险因素在重症COVID-19患者中同时存在。目前用于区分(1)重症、脓毒症且患有COVID-19的患者和(2)其他原因所致脓毒症患者的诊断标准,给医疗服务提供者留下了两个不理想的选择。第一个选择是凭经验给予可能是或可能不是脓毒症的广谱抗菌治疗。这种治疗不仅可能无效且不恰当,还可能造成伤害。开发更好的方法来识别和表征抗菌药物敏感性,将指导更准确的治疗干预,并减少新的抗生素耐药菌株的产生。理想的诊断测试应(1)快速且可靠,(2)检测下限低于血培养,(3)能够直接从临床标本中检测特定病原体和药物敏感性。快速直接检测耐抗菌药物病原体将有助于进行针对性治疗,并改善重症COVID-19和脓毒症患者的预后。