Related Experiment Video
Updated: Jan 30, 2026

Whole-body PET/MRI of Pediatric Patients: The Details That Matter
Published on: December 19, 2017
The relationship of abdominal perfusion pressure with mortality in critically ill pediatric patients
Ozden Ozgur Horoz1, Dincer Yildizdas1, Yusuf Sari1
1Department of Pediatric Intensive Care Unıt, Çukurova University, School of Medicine, Adana, Turkey.
Insights
Abdominal perfusion pressure (APP) can predict mortality in critically ill children with intra-abdominal hypertension (IAH). Lower APP levels indicate a higher risk of death, suggesting APP is a valuable clinical tool.
Area of Science:
- Pediatric Critical Care Medicine
- Hemodynamic Monitoring
- Intra-abdominal Hypertension (IAH) Management
Background:
- Limited data exists on the clinical utility of abdominal perfusion pressure (APP) in critically ill children.
- Intra-abdominal hypertension (IAH) is a serious condition in critically ill pediatric patients, associated with increased morbidity and mortality.
Purpose of the Study:
- To investigate the clinical utility of abdominal perfusion pressure (APP) in predicting survival in critically ill children with IAH.
- To establish APP as a potential prognostic marker in pediatric intensive care.
Main Methods:
- Prospective cohort study including 35 pediatric patients (1 month to 18 years) at risk for IAH.
- Serial measurements of intra-abdominal pressure (IAP) and mean arterial pressure (MAP) were performed.
- Abdominal perfusion pressure (APP) was calculated as MAP-IAP.
Main Results:
- Overall mortality rate was 49%.
- A decrease in minimum APP was significantly associated with an increased risk for mortality (OR 1.052 per 1 mmHg decrease, p<0.05).
- Receiver operating characteristic (ROC) curve analysis showed an area under the curve of 0.765 for minAPP in predicting mortality, with an optimal cut-off of 53 mmHg.
Conclusions:
- Abdominal perfusion pressure (APP) appears to be a useful tool for predicting mortality in critically ill children with IAH.
- Interventions aimed at improving APP may lead to better outcomes in this patient population.
Purpose:
To the best of our knowledge, in the literature, there is no data regarding clinical utility of the abdominal perfusion pressure (APP) in critically ill children. Thus, in the present study, we aimed to investigate the clinical utility of APP in predicting of survival in critically ill children with IAH.
Design:
A prospective cohort study of patients between 1 month to 18 years who had risk for intra-abdominal hypertension from June 2013 to January 2014.
Setting:
Pediatric intensive care unit (PICU) at a tertiary university hospital.
Patients:
Thirty-five (16 female) PICU patients who had risk for the development of IAH were included. Serial intraabdominal pressure (IAP) and mean arterial pressure (MAP) measurements were performed. Abdominal perfusion pressure was calculated using the formula (MAP-IAP).
Measurements And Main Results:
Overall mortality rate was 49% (n = 17). The mortality rate in patients with IAP mean ≥10 mmHg (n = 27, 77%) was 55% (n = 15), while 53% (n = 16) in patients with IAP max ≥10 mmHg (n = 30, 86%) and 47% (n = 7) in patients with IAP min ≥ 10 mmHg (n = 15, 43%). Overall mean APP was 58 ± 20 mmHg. Logistic regression analysis revealed that decrease in minAPP was associated with increased risk for mortality (Odds ratio for each 1 mmHg decrease in APP was 1.052 [CI 95%, 1.006-1.100], p < 0.05). ROC curve analysis revealed that, in predicting mortality, area under curve for minAPP was 0.765. The optimal cut-off point for APP was obtained as 53 mmHg with the 77.8% sensitivity and 70.6% specificity using the IU method.
Conclusions:
Our findings showed that APP seems to be a useful tool in predicting mortality. Interventions to improve APP may be associated with better outcomes in critically ill PICU patients.
Level Of Evidence:
Level II.
Type Of Study:
Diagnostic.
More Related Videos
Related Concept Videos
Pressure Relationships in Thoracic Cavity
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs...
Pharmacokinetics in Pediatric Patients: Drug Excretion
Pharmacokinetics in Pediatric Patients: Drug Distribution
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Relationship Formation

