The aim of this study is to assess the effectiveness and safety of sivelestat sodium in preventing acute lung injury and/or acute respiratory distress syndrome (ALI/ARDS) following cardiac surgery, with the objective of providing evidence-based support for its clinical application.
This study is being performed as a randomized, placebo-controlled trial conducted in 442 patients who met the inclusion and exclusion criteria and were scheduled for elective cardiac surgery. Following informed consent, patients were randomly assigned to either the experimental group or the control group, with the study drug administered after transfer to the ICU post-surgery. In the experimental group, sivelestat was dissolved in 0.9% sodium chloride injection and diluted with 50ml of the same solution to achieve a dose of 4.8mg/kg/day; this mixture was then placed in a sealed package and administered intravenously at a rate of 0.2 mg/kg/h for seven consecutive days. The control group received an equivalent volume (50ml) of saline continuously administered intravenously at a rate of 0.2 mg/kg/hour. Demographic and clinical information, including admission diagnosis, underlying diseases, medical history, surgical history, details of the surgical procedure, postoperative complications, and in-hospital outcomes were collected from all participants. The primary outcome is the incidence of postoperative ARDS. Secondary outcome measures include data collection on the following parameters: elevated inflammatory response indices (WBC\>20×109/L; IL-6\>301.88mg/ml; CRP\>49.76mg/L; PCT\>2.18ng/ml) on postoperative days 1, 3, 5, and 7; APACHE II score; Murray lung injury score; incidence of severe pneumonia; mechanical ventilation-free rate at day 28; mortality rates at both day 28 and day 90. Adverse events such as liver injury, leukopenia, and thrombocytopenia resulting from sivelestat treatment were also monitored. Additionally,during the follow-up period, mortality within a 90-day period will be recorded.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
382
(1)Experimental group: Received intravenous sivelestat sodium admission to the ICU. Sivelestat sodium was dissolved in 0.9% sodium chloride injection and a one-day dose (4.8mg/kg) was diluted in 50ml of 0.9% sodium chloride injection, which was then sealed for continuous intravenous administration at a rate of 0.2 mg/kg/h for seven consecutive days.
2)Control group: Receiving the same dose of placebo, 50 ml of saline, were administered intravenously at a rate of 0.2 mg/kg throughout the treatment period without any discernible impact on patient's regular treatment regimen.
The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Nanjing, China
Oxygenation index
SpO2 /FIO2
Time frame: postoperative day 1, 3, 5 and 7
Inflammatory index
WBC\[×109/L\], Neutrophil\[NEU,%\], Interleukin(IL)-1β\[pg/mL\], IL-6\[pg/mL\], IL-8\[pg/mL\], TNF-α\[pg/mL\], CRP\[mg/L\], PCT\[ng/mL\], neutrophil elastase\[NE,ng/mL\] and myeloperoxidase\[MPO, ng/ml\]
Time frame: postoperative day 1, 3, 5 and 7
Myocardial injury marker
myoglobin\[Myo, ng/ml\], CK-MB\[ng/ml\], hs-cTnI\[ng/ml\]
Time frame: postoperative day 1, 3, 5 and 7
Acute physiology and chronic health evaluation(APACHE II) socre
Interpretation of APACHE II : minimum 0 and maximum 71; increasing score is associated with an increasing risk of hospital death. acute physiology score, chronic health status score, and age adjustment score
Time frame: postoperative day 1, 3, 5 and 7
Murray socre
Interpretation of Murray socre : the Murray Lung Injury Score, a clinical assessment tool for evaluating the severity of acute lung injury. The score ranges from 0 to 4, with higher scores indicating worse pulmonary function and more severe lung injury.
Time frame: postoperative day 1, 3, 5 and 7
ICU time
Time to stay in the intensive care unit
Time frame: postoperative 28 days
In-hospital time
All time during hospitalization
Time frame: postoperative 28 days
30-day all-cause mortality
Proportion of deaths caused by various reasons within a certain period of time (30 days) compared to the total number of people in a certain group
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Time frame: postoperative 30 dayS
90-day all-cause mortality
Proportion of deaths caused by various reasons within a certain period of time (90 days) compared to the total number of people in a certain group
Time frame: postoperative 90 days