Publications by authors named "Li Weng"

Background: Pressure support ventilation (PSV) is one of the most frequently used ventilator modes in the intensive care unit (ICU). The successful implementation of PSV depends on matching the patient's inspiratory effort with the ventilator support. In clinical practice, the pressure support level is usually set and adjusted according to tidal volume and respiratory rate.

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This cross-sectional study involved 341 fifth-year associate degree nursing students who completed an online questionnaire survey from May 1 to July 31, 2020. Out of these, 196 effective responses were received, with participants' ages ranging from 19 to 29 years. Most were female, the eldest in their families, and had experience living with grandparents.

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Article Synopsis
  • Corynebacterium striatum is increasingly recognized as an opportunistic pathogen causing bloodstream infections (BSIs), necessitating a study on its clinical features and outcomes.
  • The study involved analyzing hospitalized patients with C. striatum-positive blood cultures over several years, comparing cases identified as actual infections (C. striatum-BSI) with those deemed as contamination, as well as comparing them to MRSA and MRSE infections.
  • Results showed that C. striatum-BSI had longer time to positivity in blood cultures and higher 28-day mortality compared to MRSA and MRSE, highlighting the need for early appropriate antibiotic treatment when C. striatum-BSI is suspected.
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Objective: To determine whether mortality differed between initial invasive mechanical ventilation (IMV) or noninvasive ventilation (NIV) followed by delayed IMV in immunocompromised patients with sepsis.

Design: Retrospective analysis using the National Data Center for Medical Service claims data in China from 2017 to 2019.

Setting: A total of 3530 hospitals across China.

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  • AccuScan is a new technology for whole genome sequencing (WGS) of cell-free DNA (cfDNA) that significantly reduces the error rate, making it more reliable for detecting molecular residual disease (MRD).
  • It achieves an impressive analytical sensitivity of detecting low levels of cancer variants with 100% specificity in colorectal and esophageal cancers shortly after surgery.
  • AccuScan also effectively monitors treatment response in melanoma patients by tracking circulating tumor DNA (ctDNA), demonstrating its utility in predicting disease outcomes without needing large sample amounts.
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Purpose: The purpose of this study was to investigate the dynamic changes in serum (1-3)-β-D-glucan (BDG) caused by intravenous immunoglobulins (IVIG) infusion in adults.

Methods: This study included patients who received IVIG infusion from October 2021 to October 2022 during hospitalization. We randomly examined two IVIG samples for every patient.

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Backgrounds: Increased respiratory drive has been demonstrated to correlate with weaning failure, which could be quantified by electrical activity of the diaphragm (EAdi). We described the physiological process of EAdi-based parameters during the spontaneous breathing trial (SBT) and evaluated the change of EAdi-based parameters as potential predictors of weaning failure.

Methods: We conducted a prospective study in 35 mechanically ventilated patients who underwent a 2-hour SBT.

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  • * A study analyzed over 1.4 million sepsis patients from 2017 to 2019, finding that 1.49% developed new-onset AF, with older age, male sex, and certain health conditions being key risk factors.
  • * The presence of new-onset AF slightly increased mortality risk in sepsis patients, suggesting more research is needed to explore the impact of better AF management on sepsis outcomes in China.
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Purpose: Assessing fluid responsiveness relying on central venous oxygen saturation (ScvO) yields varied outcomes across several studies. This study aimed to determine the ability of the change in ScvO (ΔScvO) to detect fluid responsiveness in ventilated septic shock patients and potential influencing factors.

Methods: In this prospective, single-center study, all patients conducted from February 2023 to January 2024 received fluid challenge.

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Objective: This study aims to assess the relationship between NHHR (non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio) and Type 2 diabetes mellitus (T2DM) in US adults, using National Health and Nutrition Examination Survey (NHANES) data from 2007 to 2018.

Methods: This study explored the connection between NHHR and T2DM by analyzing a sample reflecting the adult population of the United States (n = 10,420; NHANES 2007-2018). NHHR was characterized as the ratio of non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol.

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Introduction: Fluid resuscitation of patients with sepsis is crucial. This study explored the role of fluid balance in the early resuscitation of sepsis patients in the intensive care unit (ICU).

Material And Methods: A retrospective study of patients with sepsis using the Peking Union Medical College Hospital Intensive Care Medical Information System and Database from January 2014 to June 2020 was performed.

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Background: Out-of-hospital cardiac arrest (OHCA) remains a significant cause of mortality and morbidity worldwide. Extracorporeal cardiopulmonary resuscitation (ECPR) is a potential intervention for OHCA, but its effectiveness compared to conventional cardiopulmonary resuscitation (CCPR) needs further evaluation.

Method: We systematically searched PubMed, Embase, the Cochrane Library, Web of Science, and ClinicalTrials.

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Introduction: The impact of immunosuppression on prognosis of carbapenem-resistant organism (CRO) bloodstream infection (BSI) remains unclear. The aim of this study was to clarify the relationship between immunosuppression and mortality of CRO-BSI and to identify the risk factors associated with mortality in immunosuppressed patients.

Methods: This retrospective study included 279 patients with CRO-BSI from January 2018 to March 2023.

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This work proposes a supervised machine learning method for target localization in deep brain stimulation (DBS). DBS is a recognized treatment for essential tremor. The effects of DBS significantly depend on the precise implantation of electrodes.

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Article Synopsis
  • AccuScan is a new whole genome sequencing (WGS) technology that significantly reduces error rates in analyzing cell-free DNA (cfDNA), achieving a much higher accuracy than previous methods.
  • This technology successfully detects molecular residual disease (MRD) with high sensitivity and specificity, particularly in cancers like colorectal and esophageal cancer, and also aids in monitoring responses to immunotherapy in melanoma patients.
  • Overall, AccuScan makes it easier and more efficient to detect circulating tumor DNA at very low levels without the need for extensive sample input or complex procedures.
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  • Adipocytes primarily store fatty acids, but they have a low synthesis rate, raising questions about the reason behind this.
  • Excessive fatty acid synthesis in these cells can trigger necroptosis (a form of cell death) and lead to a condition called lipodystrophy, where there's an abnormal distribution of fat.
  • The study identifies MED20 as a negative regulator of fatty acid synthesis and shows that reducing reactive oxygen species (ROS) can improve metabolic issues in models of lipodystrophy, underscoring the role of ROS in these diseases.
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Sepsis-induced coagulopathy (SIC) is a critical condition in sepsis patients, with varying outcomes depending on the type of infection. This study aims to analyze the prognosis of different infections in SIC cohort. A retrospective cohort study was conducted on 525 patients diagnosed with SIC in the intensive care unit from December 2013 to December 2022.

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  • The study aimed to evaluate various criteria for using Metagenomic Next-Generation Sequencing (mNGS) in diagnosing invasive pulmonary aspergillosis (IPA) in patients with pneumonia.
  • A total of 115 patients were analyzed, revealing that while the different mNGS criteria showed moderate agreement, their sensitivity was generally low (21.4% to 57.1%), but specificity was high (88% to 92%).
  • The researchers concluded that none of the mNGS-derived criteria were sufficiently sensitive on their own, suggesting that combining mNGS with traditional testing methods may yield better diagnostic results for IPA.
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Anaplastic thyroid carcinoma (ATC) is a deadly disease with a poor prognosis. Thus, there is a pressing need to determine the mechanism of ATC progression. The homeobox D9 (HOXD9) transcription factor has been associated with numerous malignancies but its role in ATC is unclear.

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Background: Emergency patients with sepsis or septic shock are at high risk of death. Despite increasing attention to microhemodynamics, the clinical use of advanced microcirculatory assessment is limited due to its shortcomings. Since blood gas analysis is a widely used technique reflecting global oxygen supply and consumption, it may serve as a surrogate for microcirculation monitoring in septic treatment.

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Background: Sepsis surveillance was important for resources allocation, prevention, and development of health policy.

Objective: The aim of the study was to validate a modified International Classification of Diseases (ICD)-10 based algorithm for identifying hospitalized patients with sepsis.

Methods: We retrospectively analyzed a prospective, single-center cohort of adult patients who were consecutively admitted to one medical ICU ward and ten non-ICU wards with suspected or confirmed infections during a 6-month period.

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Obesity has become a global pandemic. WDTC1 is a WD40-containing protein that functions as an anti-obesity factor. WDTC1 inhibits adipogenesis by working as an adaptor of the CUL4-DDB1 E3 ligase complex.

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