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To evaluate the feasibility of esophageal pressure (Pes) calibration by the esophageal balloon pressure-volume (P-V) curve during assisted mechanical ventilation. A prospective study was conducted. The postoperative patients admitted to intensive care unit of Beijing Tiantan Hospital Affiliated to Capital Medical University from June 2017 to January 2019 who needed pressure support ventilation by tracheal intubation and Pes monitoring with stable breath were enrolled. The Pes monitoring was performed by the esophageal balloon with a small geometric volume (2.8 mL). (1) Balloon volume tests of esophageal balloon were performed by inflating intermittently 0.5 mL increments up to 2.5 mL, the end-expiratory and end-inspiratory Pes were recorded to obtain end-expiratory and end-inspiratory P-V curves. https://www.selleckchem.com/products/frax597.html The intermediate section in end-expiatory P-V curve that showed linear correlation was identified (as intermediate linear section), whose volume range was balloon working volume (V ) and slope was esophageal walying clinical application, that's only by monitoring Pes at balloon volume at 0.5, 1.0 and 1.5 mL to evaluate the Ees and calibrate Pes. To investigate the role and mechanism of the high mobility group box 1 (HMGB1) in intestinal mucosal barrier injury in rat with sepsis induced by endotoxin lipopolysaccharide (LPS). The rats were given intraperitoneal injection of LPS to reproduce a model of sepsis. The effect of HMGB1 inhibitor EP solution (40 mg/kg) on sepsis was observed, and phosphate buffer (PBS) control group was set up. Seventy-two hours after modeling, abdominal aortic blood was obtained, and enzyme-linked immunosorbent assay (ELISA) was used to measure the plasma levels of D-lactic acid and diamine oxidase (DAO) of mucosal barrier permeability. The pathological changes of the intestinal mucosal were observed with light microscope and the Chiu score was recorded. The intestinal mucosal ultrastructural changes were observed with electron microscopy. Real-time quantitative reverse transcription-polymerase chain reaction (RT-qPCR) and Western Blot were used to measure the mRNA and protein expressions of Occludin, inflammatory factor 3, all P < 0.05]. Intestinal mucosal barrier function of septic rats was damaged, permeability increased, and structure was damaged. The mechanism may be that the expression of inflammatory factor HMGB1 was up-regulated and promoted the activation of its downstream signaling molecule NF-κB, thereby mediated the inflammatory cascade reaction and caused damage to the intestinal mucosa. Intestinal mucosal barrier function of septic rats was damaged, permeability increased, and structure was damaged. The mechanism may be that the expression of inflammatory factor HMGB1 was up-regulated and promoted the activation of its downstream signaling molecule NF-κB, thereby mediated the inflammatory cascade reaction and caused damage to the intestinal mucosa. To analyze the clinical feature of adult patients with infection-associated hemophagocytic syndrome (IAHS), and to improve the ability of clinicians to diagnose and treat IAHS. A retrospectively study was performed. The clinical data of 32 adult patients with IAHS admitted to the intensive care unit (ICU) of the First Affiliated Hospital of Kunming Medical University from July 2014 to November 2019 were analyzed. The general data, clinical manifestations, laboratory results, imaging findings, pathogen and clinical outcomes were collected, and the patients were divided into survival group and death group according to the 28-day prognosis. The clinical data between the two groups were compared, and multivariate Logistic regression analysis was used to analyze the variables with statistical significance in univariate analysis. The receiver operating characteristic (ROC) curve was drawn to analyze the predictive value of variables with statistical significance in univariate analysis for 28-day prognosis of ads 13.4 μmol×s ×L , the sensitivity was 72.2%, and the specificity was 91.7%. OI < 145.5 mmHg, and LDH > 13.4 μmol×s ×L were significant predictors for poor 28-day prognosis of adult patients with IAHS. 13.4 μmol×s-1×L-1 were significant predictors for poor 28-day prognosis of adult patients with IAHS. To study the clinical characteristics of patients with severe abdominal infection and the epidemiological characteristics of pathogenic bacteria in a hospital, to provide a basis for rational use of antibiotics and reduce the drug resistance rate of pathogens. A retrospective analysis was performed on 237 patients with abdominal disease as the primary disease admitted to the surgical intensive care unit (ICU) of the First Affiliated Hospital of Guangxi Medical University from January 1st, 2017 to December 31st, 2019. They were divided into two groups according to whether abdominal infection occurred or not. The clinical features of patients in both groups were analyzed, including gender, age, acute physiology and chronic health evaluation II (APACHE II) score, chronic underlying diseases, primary abdominal site, abdominal trauma or bleeding, multiple organ dysfunction syndrome (MODS) involving organs and surgical treatment. At the same time, the bacterial origin, bacterial distribution and antibiotics senible according to the microbial spectrum of the region until the pathogenic bacteria results are obtained. Broad-spectrum antimicrobial therapy and combined antimicrobial therapy are recommended for the healthcare acquired abdominal infection in hospital. The patients with abdominal infection in our hospital had high APACHE II score, more organs failure and were easily complicated with intraperitoneal hemorrhage and required surgical intervention and even repeated surgery. The pathogenic bacteria in patients with abdominal infection in ICU were mainly G- bacteria, and the rate of multi-drug resistance of Acinetobacter baumannii was high. Empirical anti-infective treatment should be started as soon as possible according to the microbial spectrum of the region until the pathogenic bacteria results are obtained. Broad-spectrum antimicrobial therapy and combined antimicrobial therapy are recommended for the healthcare acquired abdominal infection in hospital.
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