Despite intensive research over past decades, infections and organ failure remain the most common severe complications in the critically ill surgical patient. Multiple-organ dysfunction syndrome represents the clinical endpoint of a cascade of mainly immunologic and cardiovascular events, ultimately leading to progressive patient deterioration and high mortality. Few clinicians have contributed as vigorously as Hiram C. Polk, Jr, to improve the treatment and outcome in surgical patients suffering from these disorders. His effort to standardize perioperative antibiotic prophylaxis, to introduce quantitative tracheal cultures for the diagnosis of pneumonia in trauma patients, or to use blood markers such as monocyte HLA-DR expression to identify patients at risk for adverse outcome are but some excerpts of his career as an academic surgeon. This article describes surgical infections and organ failure from a historical perspective, with emphasis on Polk's contributions, and describes our current understanding of the pathophysiology of organ dysfunction in surgical patients.
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http://dx.doi.org/10.1016/j.amjsurg.2005.05.006 | DOI Listing |
BMC Pregnancy Childbirth
January 2025
Department of Intensive Care Medicine, Army Medical Center of PLA, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China.
Background: Pregnancy-associated atypical hemolytic uremic syndrome (aHUS) is a form of thrombotic microangiopathy (TMA) caused by uncontrolled activation of the complement system during pregnancy or the postpartum period. In the intensive care unit, aHUS must be differentiated from sepsis-related multiple organ dysfunction, thrombotic thrombocytopenic purpura (TTP), hemolysis, elevated liver enzymes, and low platelet (HELLP) syndrome. Early recognition of aHUS is critical for effective treatment and improved prognosis.
View Article and Find Full Text PDFDrug Metab Dispos
January 2025
Department of Pharmaceutics, University of Washington, Seattle, Washington. Electronic address:
Physiologically based pharmacokinetic (PBPK) modeling is a physiologically relevant approach that integrates drug-specific and system parameters to generate pharmacokinetic predictions for target populations. It has gained immense popularity for drug-drug interaction, organ impairment, and special population studies over the past 2 decades. However, an application of PBPK modeling with great potential remains rather overlooked-prediction of diarrheal disease impact on oral drug pharmacokinetics.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
January 2025
Université de Tours, Inserm UMR1327 ISCHEMIA Membrane Signalling and Inflammation in reperfusion injuries, Tours, France.
Pathological left ventricular remodeling is a complex process following an acute myocardial infarction, leading to architectural disorganization of the cardiac tissue. This phenomenon is characterized by sterile inflammation and the exaggerated development of fibrotic tissue, which is non-contractile and poorly conductive, responsible for organ dysfunction and heart failure. At present, specific therapies are lacking for both prevention and treatment of this condition, and no biomarkers are currently validated to identify at-risk patients.
View Article and Find Full Text PDFNeurology
February 2025
Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, People's Republic of China.
Background And Objectives: Mitochondrial disorders are multiorgan disorders resulting in significant morbidity and mortality. We aimed to characterize death-associated factors in an international cohort of deceased individuals with mitochondrial disorders.
Methods: This cross-sectional multicenter observational study used data provided by 26 mitochondrial disease centers from 8 countries from January 2022 to March 2023.
Circ Res
January 2025
Department of Integrative Physiology (W.G.P., J.F.M.), Baylor College of Medicine, Houston, TX.
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