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find Author "MaoPu" 2 results
  • Value of Dynamic Serum sTREM-1 in Diagnosing Sepsis,Severity Assessment,and Prognostic Prediction

    ObjectiveTo investigate the clinical value of soluble triggering receptor expressed on myeloid cell-1 (sTREM-1) for diagnosis and prognosis of sepsis. MethodsPatients with SIRS (n=58) were divided into a sepsis group (n=40) and a non-sepsis group (n=18),and 12 healthy adults were admitted as control. Serum concentrations of sTREM-1,interleukin-6 (IL-6) and IL-10 were measured on days 1,3,7 and 14 by ELISA. According to the survival on 28th day after admission,the sepsis group was divided into survivors (n=27) and non-survivors (n=13). APACHEⅡ score and SOFA score were used to evaluate the severity of sepsis. The correlations between sTREM-1 and IL-6,IL-10,disease progression or prognosis were analyzed respectively. ResultsOn the first day of enrollment,sTREM-1,IL-6 and IL-10 [217.28(136.02-377.01) pg/mL,218.76(123.32-548.58) pg/mL and 93.86(54.23-143.1) pg/mL,respectively] in the sepsis group were significantly higher than those in the non-sepsis group [55.51(39.50-77.33) pg/mL,75.98(34.89-141.03) pg/mL and 52.49(45.66-56.72) pg/mL,respectively] and the control group [43.99(36.28-53.81) pg/mL,46.07(40.23-53.72) pg/mL and 49.79(43.31-53.14) pg/mL, respectively] (All P<0.01). For diagnosis of sepsis,the area under the curve (AUC) for sTREM-1 was 0.82 (95%CI 0.70-0.94). Levels of sTREM-1 and IL-10 in survivors of sepsis were gradually increased on 1st,3rd,7th day of enrollment,while level of sTREM-1 in non-survivors showed an obvious decrease during the observation. On the 14th of admission,sTREM-1,IL-6,IL-10 and IL-6/IL-10 ratio of non-survivors were significantly higher than those of survivors (P<0.05). There were significantly positive correlations between sTREM-1 and APACHEⅡ score,SOFA score,IL-6,IL-10 or IL-6/IL-10 ratio (r=0.624,0.454,0.407 and 0.324,respectively,all P<0.05). Logistic regression analysis indicated that serum level of sTREM-1 may be used as a prognostic factor of sepsis,but not an independent risk factor. ConclusionSerum sTREM-1 could be used as a marker to detect sepsis early,and sTREM-1 is also involved in systemic inflammatory reaction of sepsis patient and appears to be a prognostic value of sepsis.

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  • Assessment of Diaphragm Function with A Newly Designed Multi-function Esophageal Electrode Catheter and Bilateral Anterolateral Magnetic Stimulation of Phrenic Nerves in Patients Underwent Mechanical Ventilation

    ObjectiveTo monitor the diaphragm function of mechanical ventilated patients in the intensive care unit. MethodsA prospective study was conducted on mechanical ventilation patients who had been evaluated by ventilation weaning screening test and planning to underwent spontaneous breathing trial between May 2013 and November 2013. A newly designed multi-function esophageal electrode was used to record the phrenic nerve conduction time (PNCT),diaphragm compound muscle action potential (CMAP) and twitch transdiaphragmatic pressure (TwPdi) elicited by bilateral anterolateral magnetic phrenic nerve stimulation. Results14 patients were recruited in this study. 1 case exited because of intolerance of repetitive magnetic stimulation,2 cases had no diaphragmatic electromyographic signals nor twitch signals,1 case had diaphragmatic electromyographic signal but could not be elicited by magnetic stimulation,1 case had no available TwPdi value with PNCT of 7.2 ms and CMAP of 1.26 mV. In the rest 9 cases,the PNCT,CMAP and TwPdi were (8.5±1.5)ms,(1.01±0.35)mV,(11.2±4.7)cm H2O,respectively. ConclusionNewly designed multi-function esophageal electrode catheter combined with bilateral anterolateral magnetic phrenic nerve stimulation can be used for non-volitional comprehensive assessment of diaphragm in critically ill patients,but not suitable for all subjects.

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