Association between platelet count and multiorgan dysfunction and outcomes in patients with sepsis in the pediatric intensive care unit in Saudi Arabia.

BACKGROUND: Sepsis is one of the leading causes of morbidity and mortality in the pediatric population worldwide. This study aimed to establish a correlation between platelet count and outcomes of severe sepsis/septic shock in pediatric patients. METHODS: This retrospective cohort study was conducted in the pediatric intensive care unit (PICU) in a pediatric tertiary care medical hospital. Pediatric patients from newborns to 14-year-olds with a diagnosis of sepsis or septic shock who were admitted to the PICU between April 2015 and February 2018 were enrolled. Patients were classified into two groups based on the presence of thrombocytopenia: thrombocytopenia group (TG) with a platelet count <150,000/µL during the first seven days after admission, and non-thrombocytopenia group (NTG) with a platelet count >150,000/µL. RESULTS: Overall, 206 children were enrolled, including 82 (39.8%) in the TG and 124 (60.2%) in the NTG. Thrombocytopenia was more common in patients with a negative bacterial blood culture (93.9%, P = 0.007). NTG was associated with a higher mortality rate (29%) than the TG (12.2%, P = 0.005). Multiorgan dysfunction syndrome (MODS) at the onset of sepsis (time zero) was found to be more prevalent in NTG than in TG (P = 0.001), while the progression of MODS over the three days remained the same in both groups. CONCLUSION: Thrombocytopenia was more associated with non-bacterial sepsis/septic shock, and it may indicate a better outcome of sepsis in pediatric patients.

Association of Antibiotics Administration Timing With Mortality in Children With Sepsis in a Tertiary Care Hospital of a Developing Country.

Objective: To investigate the association between antibiotics administration timing with morbidity and mortality in children with severe sepsis and septic shock, presenting to a tertiary care center in a developing country. Methods: This is a retrospective study of children aged 14 years or younger diagnosed with severe sepsis or septic shock at a free-standing tertiary children's hospital in Saudi Arabia between April 2015 and February 2018. We investigated the association between antibiotic administration timing and pediatric intensive care unit (PICU) mortality, PICU length of stay (LOS), hospital LOS, and ventilation-free days after adjusting for confounders. Results: Among the 189 admissions, 77 patients were admitted with septic shock and 112 with severe sepsis. Overall, the mortality rate was 16.9%. The overall median time from sepsis recognition to antibiotic administration was 105 min (IQR: 65-185.5 min); for septic shock patients, it was 85 min (IQR: 55-148 min), and for severe sepsis, 130 min (IQR: 75.5-199 min). Delayed antibiotic administration (> 3 h) was associated with 3.85 times higher PICU mortality (95% confidence intervals 1.032-14.374) in children with septic shock than in children who receive antibiotics within 3 h, after controlling for severity of illness, age, comorbidities, and volume resuscitation. However, delayed antibiotics administration was not significantly associated with higher PICU mortality in children diagnosed with severe sepsis. Conclusions: Delayed antibiotics administration in children with septic shock admitted to a free-standing children's hospital in a developing country was associated with PICU mortality.

Association Between Culture-Negative Versus Culture-Positive Sepsis and Outcomes of Patients Admitted to the Pediatric Intensive Care Unit.

Background Sepsis remains a major cause of death, with high mortality and morbidity rates in children. The cause of mortality may be associated with several factors, including differences in cultures and the type of organism. This study was aimed at evaluating the characteristics and outcomes of negative bacterial blood culture compared to those of positive bacterial blood culture in children with severe sepsis/septic shock. Methods A retrospective cohort study was conducted at a pediatric intensive care unit (PICU) of a tertiary care medical center. All pediatric patients, from newborn to 14 years of age, admitted between April 2015 and January 2018 were included in the study if they fulfilled the criteria for severe sepsis/septic shock. Results Of the 209 patients, 30 (14.3%) had a positive bacterial blood culture whereas 179 (86.6%) had a negative bacterial blood culture. Mortality was more in positive bacterial blood culture 13 (43%) vs 35 (20%) in negative bacterial blood culture (P = 0.004). Respiratory tract infections were extremely common, present in 108 of 179 (60%) patients, and tended to result in a negative culture. The rate of organ dysfunction was higher in the positive bacterial blood culture group at admission (P = 0.01). However, the results did not reveal a significant finding related to multiorgan dysfunction syndrome (MODS) progression over three days of PICU admission (P = 0.06). Conclusion The negative bacterial blood culture constitutes a substantial proportion of pediatric patients with severe sepsis/septic shock. Furthermore, these pediatric patients have a lower mortality rate compared to positive bacterial blood cultures. The culture-negative sepsis group also had less organ dysfunction.