Epidemiology of pediatric sepsis in the pediatric intensive care unit of king Abdulaziz Medical City, Jeddah, Saudi Arabia.

BACKGROUND: Pediatric sepsis remains a significant cause of morbidity and mortality worldwide. This study aimed to identify the incidence of sepsis and septic shock among patients admitted to the pediatric intensive care unit (PICU) of a tertiary center in Saudi Arabia.  Patients' demographics and risk factors associated with sepsis-related mortality were also investigated. METHODS: A retrospective cohort study was conducted in the PICU of King Abdulaziz Medical City, Jeddah (KAMC-J). KAMC-J is a tertiary care hospital in the western region of Saudi Arabia. A total of 2389 patients admitted to the PICU of KAMC-J between January 1, 2013 and December 31, 2017 were screened and evaluated for sepsis using The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). RESULTS: Of the 2389 total admissions to the PICU, 113 patients (4.9%) met the definition of Sepsis-3; 50.4% of the 113 patients met the definition of septic shock. Most patients (66.3%) were less than 6 years old, and 52.2% were male. Eight-five patients (75.2%) had underlying comorbidities. The respiratory system was the most common primary site of infection (57.5%). Bacterial and viral infections were the most common infectious etiology with reported rates of 29.2 and 21.2%, respectively. The median duration of PICU stay was 8 days and the 28-day PICU mortality rate was 23.9%. A Pediatric Sequential Organ Failure Assessment (pSOFA) Score greater than four and a pre-existing percutaneous central venous catheter were associated with a significant increase in mortality, with adjusted odds ratios of 3.6 (95% confidence interval: 1.30-9.93) and 9.27 (95% confidence interval: 1.28-67.29), respectively. CONCLUSIONS: The incidence of sepsis in our institution is comparable to that reported internationally; however, the mortality rate is higher than that of developed countries. Nationwide studies identifying sepsis epidemiology are needed to improve the outcome of pediatric sepsis. Following international guidelines for central-line insertion and maintenance is of paramount importance.

The incidence of ventilator-associated pneumonia (VAP) in a tertiary-care center: Comparison between pre- and post-VAP prevention bundle.

INTRODUCTION: Ventilator-associated pneumonia (VAP) is a nosocomial infection that develops 48h after the initiation of mechanical ventilatory support. Current evidence-based guidelines demonstrate that VAP prevention is feasible through the implementation of certain VAP prevention bundle of interventions simultaneously. We aimed in this study to investigate the effect of VAP prevention pre- and post- implementation. METHODS: This is a single-center, cohort study that took place at the Pediatric Intensive Care Unit (PICU) of King Abdulaziz Medical City (KAMC), Jeddah, Saudi Arabia from January 2015 to March 2018 and assessed the rate of VAP before and after implementation of the bundle. RESULTS: The study included 141 children, 95 were included from the pre-bundle group and 36 from the bundle group. VAP developed in 35% of the pre-bundle group compared to 31% of the bundle group (p=0.651) with incidence rates equaled to 18 and 12 per 1000 ventilator days, respectively. CONCLUSION: This study found that VAP bundle did not significantly reduce VAP rate in the PICU. Further large prospective multi-center studies with longer intervention duration are indicated to investigate the benefits of using VAP prevention bundle.

Insulin-producing Cells from Adult Human Bone Marrow Mesenchymal Stromal Cells Could Control Chemically Induced Diabetes in Dogs: A Preliminary Study.

Ten mongrel dogs were used in this study. Diabetes was chemically induced in 7 dogs, and 3 dogs served as normal controls. For each diabetic dog, 5 million human bone marrow-derived mesenchymal stem cells/kg were differentiated to form insulin-producing cells using a trichostatin-based protocol. Cells were then loaded in 2 TheraCyte capsules which were transplanted under the rectus sheath. One dog died 4 d postoperatively from pneumonia. Six dogs were followed up with for 6 to 18 mo. Euglycemia was achieved in 4 dogs. Their glucose tolerance curves exhibited a normal pattern demonstrating that the encapsulated cells were glucose sensitive and insulin responsive. In the remaining 2 dogs, the fasting blood sugar levels were reduced but did not reach normal values. The sera of all transplanted dogs contained human insulin and C-peptide with a negligible amount of canine insulin. Removal of the transplanted capsules was followed by prompt return of diabetes. Intracytoplasmic insulin granules were seen by immunofluorescence in cells from the harvested capsules. Furthermore, all pancreatic endocrine genes were expressed. This study demonstrated that the TheraCyte capsule or a similar device can provide adequate immunoisolation, an important issue when stem cells are considered for the treatment of type 1 diabetes mellitus.