1.Gut microbiota: A novel target for sepsis treatment.
Weifeng SHANG ; Sheng ZHANG ; Lechen YANG ; Jiao LIU ; Dechang CHEN
Chinese Medical Journal 2025;138(13):1513-1515
2.Practice guideline on the prevention and treatment of central line associated bloodstream infection in 2025.
CHINESE SOCIETY OF CRITICAL CARE MEDICINE
Chinese Critical Care Medicine 2025;37(3):193-220
Central line associated bloodstream infection (CLABSI) is the most severe complication of indwelling intravascular catheters and one of the most common causes of intensive care unit (ICU)- or hospital-acquired infections. Once CLABSI occurs, it significantly increases the risk of mortality, long of hospital stay, and healthcare economic burden. In recent years, multiple large-scale clinical studies on the diagnosis, treatment, and prevention of CLABSI have been completed, providing evidence-based medical support for related practices. Additionally, evolving global trends in antibiotic resistance epidemiology and the development of novel antimicrobial agents necessitate adjustments in clinical management strategies. Based on these developments, the Chinese Society of Critical Care Medicine has updated and revised the Guideline on the Prevention and Treatment of Intravascular Catheter-Related Infections (2007). This guideline was developed following the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system for evidence quality assessment. Guided by clinical questions, the working group initiated the process by defining key clinical issues, conducting literature searches, screening studies, performing meta-analyses, and synthesizing evidence-based findings to draft preliminary recommendations. These recommendations underwent iterative revisions through expert panel reviews, remote and in-person meetings, and two rounds of voting by the Standing Committee of the Chinese Society of Critical Care Medicine before finalization. The guideline comprises 52 recommendations, focusing on adult patients with central venous catheters in ICU. Key areas addressed include: selection of catheter insertion sites and techniques, catheter type and design, catheter management, prevention, diagnosis, and treatment of CLABSI. The guideline aims to provide ICU healthcare professionals with best practices for central line management, ensuring standardized clinical protocols for adult CLABSI.
Humans
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Catheter-Related Infections/therapy*
;
Catheterization, Central Venous/adverse effects*
;
Bacteremia/therapy*
;
Intensive Care Units
;
Cross Infection/prevention & control*
3.Design and application of a chest belt-type vibration expectorator.
Yan XU ; Chengcheng HE ; Wenzhe LI ; Dechang CHEN ; Siwen PAN
Chinese Critical Care Medicine 2025;37(5):490-493
Disruption of normal secretion or mucociliary clearance can impair airway defense mechanisms and lung function, and increase the risk of infection. Airway clearance techniques are recommended as part of a comprehensive treatment plan for patients. Among these, vibratory expectoration is an important method of airway clearance, which loosens and liquefies mucus and metabolites on the surface of the respiratory tract through chest wall oscillation, promoting ciliary movement to facilitate sputum expulsion. However, commonly used handheld vibrating head devices and vest-type vibration expectorators have several limitations in clinical practice, such as inconvenience of operation, limited treatment time, poor adaptability, and difficulty in disinfection. To address these issues, the research team from the department of critical care medicine at Ruijin Hospital, Shanghai Jiao Tong University, has designed a novel belt-type vibration expectorator, which has been granted a national utility model patent (Patent No.: ZL 2023 2 1610983.1). The device is mainly composed of a chest strap assembly, a sputum clearance component, and a fixed shoulder strap component. Several pockets are placed on the outer surface of the chest strap, with corresponding inner-side openings that allow the percussion head of the percussive expectorator placed inside the pocket to make contact with the patient's chest wall. Each pocket has markings indicating the percussion position, enabling the placement of the percussive expectorator according to the location of infection, thereby achieving multi-point, precise percussive vibration expectoration in different body positions. On the inner side of the chest strap, there are diagrams illustrating postural drainage, providing guidance on the body positions patients should assume based on the location of infection. The hook-and-loop fasteners on both sides of the chest strap can be wrapped around and secured according to the patient's body shape, ensuring that the sputum clearance components adhere tightly to the chest wall, allowing the vibrations generated by percussion to be effectively transmitted to the patient's airways. Additionally, to prevent the chest strap from slipping due to changes in the patient's position, a Y-shaped fixing strap can be selectively attached to the chest strap for further stabilization. This innovation not only simplifies the operation process, improves convenience and flexibility of use, but also supports the principle of "disinfection after each use by one person," which helps to reduce the risk of nosocomial infections and improve the efficiency of patients' respiratory rehabilitation.
Humans
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Vibration
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Equipment Design
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Chest Wall Oscillation/instrumentation*
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Sputum
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Expectorants
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Mucociliary Clearance
4.Annual review of clinical research on extracorporeal life support in 2023
Hongling ZHANG ; Yuan YU ; Dechang CHEN ; You SHANG
Chinese Critical Care Medicine 2024;36(2):118-123
The clinical research in the field of extracorporeal life support (ECLS) in 2023 has focused on the efficacy of veno-arterial extracorporeal membrane oxygenation (ECMO) in patients with infarct-related cardiogenic shock. Additionally, the research also explored the efficacy of prone positioning during veno-venous ECMO, transfusion strategies, and the impact of obesity on outcomes. Awake veno-venous ECMO has shown novel therapeutic potential, but its optimal practice methods and management strategies remain to be determined. In in-hospital cardiac arrest patients, extracorporeal cardiopulmonary resuscitation has demonstrated higher survival rates and better neurological recovery compared to conventional cardiopulmonary resuscitation. The effectiveness of extracorporeal carbon dioxide removal varies among patients with different types of respiratory failure. Future research should focus on optimizing the application strategies and process management of ECLS technologies, investigating personalized therapy, and studying how to improve long-term rehabilitation and quality of life for survivors.
5.Research progress on the timing and implementation of early rehabilitation for critically ill patient
Chinese Critical Care Medicine 2024;36(9):992-996
Critical care rehabilitation is an essential component of treating critically ill patients. Implementing early rehabilitation is safe and feasible, with benefits and early rehabilitation is both safe and feasible, with benefits far outweighing potential risks. An individualized rehabilitation plan is necessary for initiating early rehabilitation treatment. This includes identifying the rehabilitation needs of critically ill patients, timely seizing opportunities for rehabilitation intervention, and implementing safe rehabilitation measures through position training, exercise training, respiratory training, and monitoring the rehabilitation process. There remains considerable heterogeneity in the clinical practice of early rehabilitation treatment for critically ill patients. This article provides an updated overview of evidence-based medicine for early rehabilitation treatment of critically ill patients, aiming to offer a reference for clinical medical staff in formulating critical care rehabilitation treatment strategies for these patients.
6.Severe hypocalcemia after denosumab administration in a patient with chronic kidney disease:a case report
Yuanhong MAO ; Yanhong ZHAO ; Dechang CHEN ; Zongwu TONG
Chinese Journal of Pharmacoepidemiology 2024;33(7):835-840
A 43-year-old female patient with chronic kidney disease stage 5 received a single subcutaneous dose of 60 mg of denosumab for osteoporosis.Prior to treatment,her calcium level was 2.25 mmol·L-1.After 13 days,she experienced numbness in her limbs and mouth corners,as well as muscle spasms.Her blood calcium dropped to 1.12 mmol·L1,and an electrocardiogram revealed a prolonged QT interval.Symptoms improved with intravenous and oral calcium plus active vitamin D treatment,raising her blood calcium to 2.23 mmol·L1.Following discharge from the hospital,the patient continued oral calcium supplementation.However,during the six-month follow-up period,it was observed that the patient still experienced recurrent hypocalcemia.The Naranjo's assessment scale indicated that severe and refractory hypocalcemia was very likely associated with denosumab.This case highlights the importance of vigilance for hypocalcemia in chronic kidney disease patients following denosumab administration,emphasizing the need for thorough pre-medication assessment and post-medication monitoring to ensure patient safety.
7.Myocardial injury caused by infection of coronavirus.
Yanxia HUANG ; Mei MENG ; Dechang CHEN
Chinese Critical Care Medicine 2023;35(6):665-668
Coronaviruses are single-stranded RNA viruses that are common in animals. In the past 20 years, there have been three large-scale epidemics of coronaviruses, including severe acute respiratory syndrome (SARS), Middle East respiratory syndrome (MERS), and coronavirus disease (COVID). Heart disease is an independent risk factor for severe COVID. At the same time, SARS-CoV-2 infection is often complicated with myocardial injury, which is closely related to poor prognosis. The receptors of SARS coronavirus are angiotensin-converting enzyme 2 (ACE2) and CD209L, among which ACE2 is the main receptor, and ACE2 is abundant in the heart. The receptor of MERS-coronavirus is dipeptide peptidase 4 (DPP4), which is not expressed in myocardial cells, but existed in vascular endothelial cells and blood. These receptors are important factors for the myocardial injury caused by coronavirus infection.
Animals
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COVID-19
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Angiotensin-Converting Enzyme 2
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SARS-CoV-2
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Endothelial Cells
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Peptidyl-Dipeptidase A/genetics*
8.Primary retroperitoneal soft tissue sarcoma resection combined with nephrectomy: a report 27 cases
Jiaxin LIN ; Dechang DIAO ; Weilin LIAO ; Jiahao WANG ; Xin TANG ; Wenjuan LI ; Hongming LI ; Xiaojiang YI ; Xinquan LU ; Xiaochuang FENG ; Zhaoyu CHEN
Chinese Journal of General Surgery 2023;38(12):905-908
Objective:To investigate the efficacy and safety of retroperitoneal soft tissue sarcoma resection combined with nephrectomy.Methods:The clinical data of 27 cases undergoing retroperitoneal soft tissue sarcoma resection combined with nephrectomy at the Gastrointestinal Tumor Center , Guangdong Provincial Hospital , Traditional Chinese Medicine from Jun 2017 to Aug 2022 were retrospectively analyzed for the indication of nephrectomy, postoperative progression of renal insufficiency and survival rate.Results:Twenty-six cases (96%) achieved R 0/R 1 resection and 1 case nderwent R 2 resection. Six cases underwent combined unilateral nephrectomy and 21 patients underwent combined multi-organ resection with a median number of resections of 4 (2,5). Postoperative pathology suggested that the combined resected kidney was positive for tumor infiltration in 17 cases. Five cases had Clavien-Dindo grade 3 or higher complications and no deaths occurred within 30 days after surgery. At the 90th day after surgery, 19 cases (70%) had decreased renal function ( Z=2.88, P=0.04), with a median decrease of -3.96 (-30.36, 0.31)ml·(min·1.73 m 2) -1, including 8 cases of preoperative Chronic Kidney Disease(CKD)1 stage progression (6 cases of CKD 2 stage, 2 cases of CKD 3 stage); 2 cases of CKD 2 stage progressed to CKD 3 stage; 1 case of preoperative CKD 3 stage progressed to CKD 4 stage. During the follow-up period of 3-38 months, no patient progressed to CKD 5 stage and no patient required dialysis treatment. Conclusion:Retroperitoneal soft tissue sarcoma resection combined with nephrectomy is safe and feasible while improving tumor radicality.
9.Clinical practice guidelines for nutritional assessment and monitoring of adult ICU patients in China.
Medicine CHINESE SOCIETY OF CRITICAL CARE
Chinese Critical Care Medicine 2023;35(11):1121-1146
The Chinese Society of Critical Care Medicine (CSCCM) has developed the clinical practice guidelines of nutrition assessment and monitoring for patients in adult intensive care unit (ICU) of China. This guideline focuses on nutrition assessment and metabolic monitoring to achieve the optimal and individualized nutrition therapy for critical ill patients. This guideline was made by experts in critical care medicine and evidence-based medicine methodology and was developed after a thorough system review and summary of relevant trials or studies published from 2000 to July 2023. A total of 18 recommendations were formed and consensus was reached through discussions and review by expert groups in critical care medicine, parenteral and enteral nutrition, and surgery. The recommendations are based on the currently available evidence and cover several key fields, including nutrition risk screening and assessment, evaluation and assessment of enteral feeding intolerance, metabolic and nutritional measurement and monitoring during nutrition therapy, and organ function evaluation related to nutrition supply. Each question was analyzed according to the PICO principle. In addition, interpretations were provided for four questions that did not reach a consensus but may have potential clinical and research value. The plan is to update this nutrition assessment and monitoring guideline using the international guideline update method within 3 to 5 years.
Adult
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Humans
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China
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Critical Care
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Critical Illness/therapy*
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Intensive Care Units
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Nutrition Assessment
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Nutritional Support/methods*
10.Target serum concentration of vancomycin may be reached earlier with a loading dose.
Yanxia HUANG ; Le HE ; Yunxin DENG ; Renjing ZHANG ; Mei MENG ; Jiao LIU ; Dechang CHEN
Chinese Medical Journal 2022;135(3):317-323
BACKGROUND:
Vancomycin treatment failure against vancomycin-susceptible gram-positive cocci is not rare in the intensive care unit (ICU). One of the reasons for this is the substandard drug trough concentration. We aimed to examine the hypothesis that the target serum concentration could be reached earlier with a loading dose of vancomycin.
METHODS:
This retrospective cohort study was conducted at our ICU between June 2018 and June 2020 and involved patients who were suspected of having, or confirmed to have, gram-positive cocci infection and treated with vancomycin. One group of the patients was administered a loading dose of vancomycin (loading group) and compared with the group that did not receive a loading dose (control group). The baseline characteristics, vancomycin serum concentrations, and clinical outcomes were collected and analyzed.
RESULTS:
Fifty-five patients were finally included, of which 29 received a loading dose of vancomycin. The serum concentration of vancomycin before the second dose was significantly higher for the loading group than for the control group (10.3 ± 6.1 mg/L vs. 5.7 ± 4.4 mg/L, P = 0.002). The results for both groups were similar before the fifth dose (12.4 ± 7.3 mg/L vs. 10.3 ± 6.3 mg/L in the loading and the control groups, respectively; P = 0.251). The 28-day mortality was lower for the loading group than for the control group (6.7% vs. 34.6% in the loading and control groups, respectively; P = 0.026). No significant differences were observed in serum creatinine (Cr) concentrations of the two groups.
CONCLUSION:
With the loading dose of vancomycin, the target serum concentration of vancomycin may be reached earlier without increasing the risk of acute kidney injury.
TRIAL REGISTRATION
https://www.chictr.org.cn; ChiCTR2000035369.
Anti-Bacterial Agents/therapeutic use*
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Creatinine
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Humans
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Intensive Care Units
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Retrospective Studies
;
Vancomycin

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