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Objective:To investigate the change of D-Dimer (D-D), cardiac troponin I (cTnI) and vasoactive-inotropic score (VIS) after Stanford type A aortic dissection (TAAD) and thier predictive effect on death outcome.Methods:120 patients with TAAD who were treated in the Affiliated Hospital of Jining Medical College from January 2019 to January 2022 were retrospectively selected and divided into death group ( n=17) and survival group ( n=103) according to the 28-day survival after operation. The difference of clinical data between the two groups was compared, and the influencing factors of postoperative death in TAAD patients were analyzed by logistic regression method. Results:The age, deep hypothermic circulatory arrest time, D-D and cTnI of the patients in the death group were (60.50±5.42)years old, (30.40±9.92)min, (15.65±5.52)g/L and (3.32±0.82)mg/L, respectively, which were significantly higher than those in the survival group (all P<0.05). The VIS score and change of VIS score in the death group at 24 hours after operation were (9.66±1.10)points and (4.50±0.91)points respectively, which were significantly higher than those in the survival group (all P<0.05). Logistic regression analysis showed that age, D-D, cTnI and change of VIS score were the influencing factors of death after TAAD (all P<0.05). The area under the receiver operating characteristic (ROC) curve predicted by the D-D, cTnI and change of VIS score for death in TAAD patients was 0.718, 0.691 and 0.789 respectively (all P<0.05). Conclusions:Postoperative death of TAAD patients is affected by their age, D-D, cTnI and change of VIS score. The D-D, cTnI and change of VIS score have certain application value in predicting postoperative death of patients.
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Objective:To study the predictive value of vasoactive-inotropic score (VIS), fluid overload (FO) and lactate level for the outcome of preterm infants with refractory septic shock.Methods:Preterm infants diagnosed with refractory septic shock and required hydrocortisone treatment in our Department from January 2016 to December 2021 were analyzed retrospectively. Preterm infants were assigned into three gestational age groups (<28 weeks, 28-31 weeks, 32-36 weeks). According to the outcome of the disease, the children were further divided into good prognosis group and poor prognosis group. The relationship between the maximum VIS, FO and the mean lactic acid before hydrocortisone and the outcome of refractory septic shock was analyzed by receiver operating characteristic (ROC) curve, the cut-off point of ROC curve was calculated to obtain the predictive efficacy of the three indicators for the outcome of refractory septic shock in preterm infants.Results:A total of 50 preterm infants with refractory septic shock and received hydrocortisone treatment were enrolled, including 20 in the good prognosis group and 30 in the poor prognosis group. There were no significant differences in the maximum VIS, FO and mean lactic acid before hydrocortisone treatment between the two groups of gestational age of <32 weeks ( P> 0.05). The maximum VIS, FO and mean lactic acid of gestational age of 32-36 weeks in the poor prognosis group were higher than those in the good prognosis group, VIS: 56.1±15.7 vs. 37.1±12.9, FO (%): 108.2 (78.6,137.7) vs. 55.5 (10.3, 100.7), and mean lactic acid (mmol/L): 8.3 (4.6, 12.0) vs. 4.8 (-0.8, 10.5), all P<0.05. The area under the ROC curve of the mean lactic acid was the largest, the cut-off value was 4.1 mmol/L, and the Youden index was 1.732. Conclusions:VIS, FO and lactate level are difficult to be used for determining the outcome of refractory septic shock in preterm infants of <32 weeks. While the mean lactic acid has the best predictive performance in preterm infants of 32-36 weeks.
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Objective To determine the threshold of the inotropic score (IS) and vasoactive–inotropic score (VIS) for predicting mortality in pediatric septic shock. Method This retrospective cohort study included children aged 1 mo to 13 y with septic shock, requiring vasoactive medication. The area under curve receiver operating characteristic (AUROC) was calculated using mean IS and mean VIS to predict PICU mortality, and Youden index cut points were generated. Sensitivity, specifcity, and binary regression analysis were performed. Results A total of 176 patients were enrolled (survivor, n=72, 41% and nonsurvivor, n=104, 59%). For predicting the PICU mortality, AUROC (95% CI) of IS was 0.80 (0.74–0.86) [sensitivity of 88.5 (80.7–94) and specifcity of 58.3 (46.1–69.8)] and AUROC of VIS was 0.88 (0.82–0.92) [sensitivity of 83.7 (75.1–90.2) and specifcity of 80.6 (69.5–89)]. The respective cutof scores of IS and VIS were 28 and 42.5. On regression analysis (adjusted odds ratio, 95% CI), illness severity (PRISM-III) (1.12, 1.05–1.12), worst lactate value (1.31, 1.08–1.58), IS (>28) (3.98, 1.24–12.80), and VIS (>42.5) (4.66, 1.57–13.87) independently predicted the PICU mortality (r 2=0.625). Conclusion Threshold of inotropic score (>28) and vasoactive–inotropic score (>42.5) were independently associated with PICU mortality. In addition to IS and VIS, severity and worst lactate value independently predicted septic shock mortality in PICU.
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The degree of hemodynamic support by vasoactive drugs in critically ill patients is often considered one of the markers of disease severity. The sequential organ failure assessment (SOFA), European system for cardiac operative risk evaluation Ⅱ (EuroScoreⅡ), and other scores only roughly quantify the drug support of cardiovascular system. When patients need large doses of vasoactive drugs, the mortality increases accordingly. The vasoactive-inotropic score (VIS) objectively quantifies the degree of cardiovascular support using a simple formula that standardizes the dose of different agents, and it is recommended as a simple, effective, and accurate prognostic indicator. In recent years, there are more and more clinical applications and related studies at home and abroad. This paper reviews the application and progress of VIS score in critically ill patients, providing help for doctors to judge the condition and prognosis of patients and guiding the decision-making of diagnosis and treatment.
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Objective:To study the predictive value of vasoactive-inotropic score (VIS), shock score and lactate level for the outcome of term infants with septic shock.Methods:From January 2019 to October 2020, clinical data of term infants with septic shock admitted to our department were reviewed. According to their clinical outcome, the infants were assigned into the survival group and the deceased group and the differences of the two groups were compared. Logistic regression was used to determine the risk factors of mortality in term infants with septic shock. Receiver operating characteristic curve was used to compare the predictive efficacy of VIS, shock score and lactate level for the outcome of septic shock.Results:Significant differences existed between the survival group and the deceased group in the following: maximum VIS, maximum shock score, maximum lactate level, the mean value of VIS during the second 24 h, the mean value of lactate during the first and second 24 h ( P < 0.05). Meanwhile, maximum VIS ( OR = 1.038, 95% CI 1.014~1.063), maximum shock score ( OR = 2.372, 95% CI 1.126~4.999) and the mean value of lactate during the first 24h ( OR = 2.983, 95% CI 1.132~7.862) were correlated with mortality in the infants ( P < 0.05). The area under the curve of maximum VIS was the most prominent, with 58.5 as cut-off. Conclusions:Among the three indicators, VIS has the best predictive value for mortality outcome in term infants with septic shock, followed by shock score and lactate level.
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Objective:To study the early predictive value of vasoactive inotropic score (VIS) for mortality in persistent pulmonary hypertension of the newborn (PPHN).Method:From July 2017 to November 2020, clinical data of infants diagnosed with PPHN (gestational age ≥34 weeks and admission age <7 days) admitted to our department of neonatology were retrospectively analyzed. According to their clinical outcome, the infants were assigned into survival group and death group. Demographics, risk factors of mortality and the series of VIS within 12 hours after admission were collected. These indicators were compared between the two groups to determine the confounding factors of mortality. Logistic regression was used to determine the correlation between VIS and mortality. The predictive value of VIS for the mortality of infants with PPHN was calculated using ROC curve.Result:A total of 105 infants with PPHN were enrolled, including 75 in survival group and 30 in death group. The overall mortality rate was 28.6% (30/105). Compared with survival group, the death group had higher gestational age [(39.1±1.8) weeks vs. (37.9±2.0) weeks], lower Apgar score at 1 minute [8.0 (6.0, 9.3) vs. 9.0 (8.0, 10.0)] and lower PaO 2/FiO 2 within 12 hours after admission [40 (30, 50) vs. 80 (60, 100)]. After adjusting for gestational age, Apgar score at 1min and lowest PaO 2/FiO 2 within 12 hours after admission, the maximal VIS (VISmax) >27.8 within 12 hours after admission was independently correlated with increased risk of mortality ( OR=23.055, 95% CI 4.885~108.800, P<0.001). ROC curve analysis showed that the cut-off value was 27.8, with 70.0% sensitivity and 90.7% specificity predicting mortality (AUC=0.828, Youden index=0.607). Conclusion:VIS could be used as an early predictor of mortality in PPHN. The infants with VISmax greater than 27.8 within 12 hours after admission have increased risk of mortality.
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Objective: The objective of the current study was to evaluate the timing of first extubation and compare the outcome of patient extubated early with others; we also evaluated the predictors of early extubation in our cohort. Materials and Methods: This prospective cohort study included children <1 year of age undergoing surgery for congenital heart disease. Timing of first extubation was noted, and patients were dichotomized in the group taking 6 h after completion of surgery as cutoff for early extubation. The outcome of the patients extubated early was compared with those who required prolonged ventilation. Variables were compared between the groups, and predictors of early extubation were evaluated using multivariate logistic regression analysis. Results: One hundred and ninety-four (33.8%) patients were extubated early including 2 extubation in operating room and 406 (70.7%) were extubated within 24 h. Four (0.7%) patients died without extubation. No significant difference in mortality and reintubation was observed between groups. Patient extubated early had a significant lower incidence of sepsis (P = 0.003) and duration of Intensive Care Unit (ICU) stay (P = 0.000). Age <6 months, risk adjustment for congenital heart surgery category ≥3, cardiopulmonary bypass time ≥80 min, aortic cross-clamp time ≥ 60 min, and vasoactive-inotropic score >10 were independently associated with prolonged ventilation. Conclusion: Early extubation in infants postcardiac surgery lowers pediatric ICU stay and sepsis without increasing the risk of mortality or reintubation. Age more than 6 months, less complex of procedure, shorter surgery time, and lower inotropic requirement are independent predictors of early extubation.
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Objective To evaluate the vasoactive-inotropic score(VIS) as a predictor of outcome in children following surgery for congenital heart disease.Methods A retrospective chart review of 472 children undergoing cardiac surgery with bypass.VIS values were calculated during the first 72 postoperative hours,and the maximum and mean scores in the first,second and third 24 postoperative hours [VIS (24max),VIS (24mean),VIS (48max),VIS (48mean),VIS (72max),VIS (72mean)] were also recorded.Chi-test,t-test,and ROC curves were performed for the association between VIS and the clinical outcomes.Results ROC analysis indicated the VIS (24max) was strongly associated with poor outcomes (AUROC =0.919,P =0.000).And the high V IS (24max) defi ned as 19.5 and above,which may lead poor outcomes (J =0.70).When the interplay between a range of factors was controlled,only lactate and VIS(24max) was related to the prognosis.Conclusion Maximum VIS calculated in the first 24 hours[VIS(24max)] after PICU admission was strongly and significantly associated with clinical outcomes in children after cardiac surgery.The greater the VIS,the worse the illness,the poorer the outcome,the higher the mortality.
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Objective: The objective of our study was to determine the feasibility of early extubation and to identify the risk factors for delayed extubation in pediatric patients operated for ventricular septal defect closure. Methods: A prospective, observational study was carried out at our Institute. This study involved consecutive 135 patients undergoing ventricular septal defect closure. Patients were extubated if feasible within six hours after surgery. Based on duration of extubation, patients were divided two groups: Group 1= extubation time ≤ 6 hours, Group 2= extubation time >6 hours. Results: A total of 99 patients were in Group 1 and 36 patients in Group 2. Duration of ventilation was 4.4±0.9 hours in Group 1 and 25.9±24.9 hours in Group 2 (P<0.001). Univariate analysis showed that young age, low weight, low partial pressure of oxygen, trisomy 21, multiple ventricular septal defect, high vasoactive inotropic score, transient heart block and low cardiac output syndrome were associated with delayed extubation. However, regression analysis revealed that only trisomy 21 (OR: 0.248; 95%CI: 0.176-0.701; P=0.001), low cardiac output syndrome (OR: 0.291; 95%CI: 0.267-0.979; P=0.001), multiple ventricular septal defect (OR: 0.243; 95%CI: 0.147-0.606; P=0.002) and vasoactive inotropic score (OR: 0.174 95%CI: 0.002-0.062; P=0.039) are strongest predictors for delayed extubation. Conclusion: Trisomy 21, low cardiac output syndrome, multiple ventricular septal defect and high vasoactive inotropic score are significant risk factors for delay in extubation. Age, weight, pulmonary artery hypertension, size of ventricular septal defect, aortic cross-clamp and cardiopulmonary bypass time did not affect early extubation.