Spleen stiffness measurement by transient elastography to diagnose portal hypertension in children
Imeke Goldschmidt1, Catharina Brauch, Thierry Poynard
1*Division of Pediatric Gastroenterology and Hepatology, Hannover Medical School, Hannover, Germany †Department of Hepato-Gastroenterology, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
Insights
Spleen stiffness measurement (SSM) using transient elastography (TE) is a feasible, noninvasive method to assess esophageal varices in children. This technique shows promise in evaluating liver disease complications and guiding clinical decisions.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Medical Imaging
Background:
- Esophageal varices are a serious complication of chronic liver disease in children.
- Current diagnostic methods like endoscopy are invasive.
- Noninvasive tools are needed to improve diagnosis and management.
Purpose of the Study:
- To assess the feasibility of spleen stiffness measurement (SSM) by transient elastography (TE) in children.
- To compare SSM's diagnostic utility with established markers of liver fibrosis and portal hypertension.
- To evaluate SSM's ability to detect esophageal varices and predict complications.
Main Methods:
- 99 children (62 with chronic liver disease, 6 post-transplant, 31 controls) underwent SSM by TE (FibroScan).
- Other assessments included Fibrotest, liver stiffness measurement, and upper endoscopy in subsets of patients.
- Spleen size and stiffness were correlated with clinical outcomes.
Main Results:
- SSM by TE is feasible in children, with higher success rates in patients with splenomegaly.
- Spleen stiffness was significantly elevated in patients with splenomegaly, varices, and a history of variceal hemorrhage.
- Variceal hemorrhage was absent in patients with SSM <60 kPa; liver stiffness and Fibrotest did not correlate with varices.
Conclusions:
- SSM by TE is a feasible method in pediatric patients.
- Spleen stiffness measurements correlate with the presence and severity of esophageal varices and related complications.
- Further prospective studies with larger cohorts are warranted to validate these findings.
Background:
The development of esophageal varices is a late complication of chronic liver disease (LD) in children. The diagnosis is presently limited to invasive procedures such as endoscopy. Noninvasive tools to diagnose the presence and degree of esophageal varices would alter management decisions and support indications for invasive procedures in affected children. The aim of the study was to test the feasibility of spleen stiffness measurement (SSM) by transient elastography (TE; FibroScan) in children and compare data on its diagnostic use with established markers of liver fibrosis and parameters of portal hypertension.
Methods:
A total of 99 children (62 with chronic LD, 6 after liver transplantation, 31 controls) underwent SSM by TE. Fibrotest was determined in 37 children, 45 children had an additional liver stiffness measurement, and 19 underwent upper endoscopy.
Results:
SSM by FibroScan is feasible. Spleen size significantly determined success rate (90.5% in patients with splenomegaly vs 70.2% in patients without, P = 0.02). Spleen stiffness was significantly higher in patients with splenomegaly (62.96 vs 18.4 kPa, P < 0.001), in patients with varices (75 vs 24 kPa, P < 0.01), and in patients with a history of variceal hemorrhage (75 vs 50.25 kPa, P < 0.05). Variceal hemorrhage did not occur in patients with SSM results <60 kPa. Spleen stiffness decreased after liver transplantation, but remained elevated compared with controls (27.5 vs 16.3 kPa). Liver stiffness measurements and Fibrotest did not reflect the presence or degree of esophageal varices.
Conclusions:
SSM by TE is feasible in children and the results reflect the degree and occurrence of complications. A prospective follow-up study with larger patient numbers and performance of screening endoscopies appears justified and desirable.
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