Value analysis of blood magnesium in evaluating the prognosis of sepsis patients
10.3760/cma.j.cn115455-20240814-00705
- VernacularTitle:血镁评估脓毒症患者预后的价值分析
- Author:
Jun YIN
1
;
Di MA
1
;
Feng HONG
1
;
Dayong ZHOU
1
Author Information
1. 安徽中医药大学第一附属医院重症医学科，合肥 230031
- Publication Type:Journal Article
- Keywords:
Sepsis;
Magnesium;
Prognosis;
Forecasting
- From:
Chinese Journal of Postgraduates of Medicine
2025;48(3):227-231
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the prognostic factors in patients with sepsis, and the value of admission blood magnesium in evaluating the prognosis.Methods:The clinical data of 197 patients with sepsis from January 2020 to December 2022 in the First Affiliated Hospital of Anhui University of Chinese Medicine were retrospectively analyzed. Among them, 71 patients died in the hospital (death group), and 126 patients survived (survival group). The basic information, mechanical ventilation, using vasoactive drug, length of hospital stay, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), sequential organ failure score (SOFA), blood routine, blood gas analysis, blood biochemical indexes and inflammatory factor levels were compared. Multivariate unconditioned Logistic regression was used to analyze the independent risk factors. The efficacy of relevant indexes in predicting the death in patients with sepsis was evaluated by the receiver operating characteristics (ROC) curve.Results:The heart rate, platelet count, blood magnesium, blood calcium, total cholesterol and D-dimmer in death group were significantly lower than those in survival group: 86.0 (75.0, 105.0) times/min vs. 91.5 (80.0, 115.7) times/min, (125.86 ± 67.58) × 10 9/L vs. (165.67 ± 75.83) × 10 9/L, 0.64 (0.57, 0.71) mmol/L vs. 0.76 (0.69, 0.86) mmol/L, 2.21 (2.19, 2.29) mmol/L vs. 2.34 (2.22, 2.39) mmol/L, 3.40 (2.68, 3.91) mmol/L vs. 3.68 (2.99, 4.39) mmol/L and 1.23 (0.65, 2.76) mg/L vs. 1.77 (0.79, 4.79) mg/L, the APACHE Ⅱ, SOFA, red blood cell volume distribution width (RDW) and triglycerides were significantly higher than those in survival group: 21 (18, 24) scores vs. 19 (17, 22) scores, 7 (6, 8) scores vs. 5 (4, 6) scores, 0.164 (0.152, 0.171) vs. 0.143 (0.132, 0.154) and 1.37 (0.94, 1.78) mmol/L vs. 1.14 (0.82, 1.59) mmol/L, and there were statistical differences ( P<0.05 or <0.01); there were no statistical difference in gender composition, age, body temperature, hypertension, diabetes, mechanical ventilation, using vasoactive drug, length of hospital stay, pH value, lactic acid, white blood cell count, neutrophil count, lymphocyte count, hematocrit, total bilirubin, alanine aminotransferase, aspartate aminotransferase, blood sodium, blood potassium, albumin, urea nitrogen, creatinine, brain natriuretic peptide, procalcitonin, C-reactive protein, heparin binding protein and amyloid A between the two groups ( P>0.05). Multivariate unconditioned Logistic regression analysis results showed that high SOFA, RDW and low platelet count, total cholesterol, blood magnesium were independent risk factors of death in patients with sepsis ( OR = 5.655, 2.011, 0.985, 0.380 and 3.160; 95% CI 2.495 to 12.816, 1.215 to 3.327, 0.970 to 0.995, 0.162 to 0.892 and 1.221 to 8.314; P<0.01 or <0.05). Among the 197 patients, 84 patients had normal blood magnesium, 113 patients (57.36%) had hypomagnesemia. The mortality rate in patients with hypomagnesemia was significantly higher than that in patients with normal blood magnesium: 52.21% (59/113) vs. 14.29% (12/84), and there was statistical difference ( χ2 = 30.07, P<0.01). ROC curve analysis result showed that RDW, SOFA, platelet count and blood magnesium had certain value in predicting death in patients with sepsis (the areas under the curves were 0.818, 0.888, 0.787 and 0.783, respectively). The optimal cutoff value of blood magnesium was 0.61 mmol/L, with a sensitivity of 70.6% and a specificity of 89.6%. Conclusions:The incidence of hypomagnesemia is high in patients with sepsis, and blood magnesium is an independent risk factor for death, which can be used as an index to evaluate the prognosis of sepsis patients.
