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Neurological deficit is predicted by S100B in children after cardiac surgery
O Bar-Yosef1, D Greidinger2, M Iskilova3
1Pediatric Neurology Unit and Talpiot Medical Leadership Program, Edmond and Lili Safra Children's Hospital, Chaim Sheba Medical Center affiliated with the Sackler School of Medicine, Tel-Aviv University, Ramat Gan 5262100, Israel; Edmond and Lili Safra Children's Hospital, Tel-Aviv University, Ramat Gan 5262100, Israel; Chaim Sheba Medical Center affiliated with Sackler School of Medicine, Tel-Aviv University, Ramat Gan, Israel.
Insights
Serum S100B effectively identifies brain injuries in children post-cardiac surgery. Elevated S100B levels detected early can aid in timely interventions for new neurological deficits.
Area of Science:
- Biomarkers
- Pediatric Neurology
- Cardiac Surgery
Background:
- Children undergoing cardiac surgery are at risk for post-operative brain injuries and neurological deficits.
- Early detection of these injuries is crucial for timely therapeutic interventions.
- The study investigates S100B as a potential biomarker for detecting such injuries.
Purpose of the Study:
- To evaluate the efficacy of S100B as an early biomarker for brain injury following pediatric cardiac surgery.
- To determine if S100B levels correlate with the development of new neurological deficits (NND).
Main Methods:
- Seventy-five pediatric patients undergoing cardiac surgery were enrolled.
- Serum S100B levels were measured pre-operatively and at 6, 12, and 24 hours post-surgery.
- Neurological assessments were performed using the Pediatric Stroke Outcome Measure (PSOM) to define NND.
Main Results:
- Twenty patients developed new neurological deficits (NND) post-surgery.
- Significantly higher S100B z-scores were observed in the NND group at all post-operative time points.
- A S100B cut-off of 3 z-scores at 6 hours yielded a 79% positive and 90% negative predictive value for NND.
Conclusions:
- S100B serves as a potent early biomarker for identifying brain injury after pediatric cardiac surgery.
- Monitoring S100B levels may facilitate the prevention of neurological injury progression in this patient population.
Introduction:
Children undergoing cardiac surgery may suffer from brain injuries after surgery and develop neurological deficit. Early diagnosis of brain injury after surgery would enable early therapeutic interventions. The aim of the study is to test whether S100B can serve as a biomarker for brain injury after cardiac surgery.
Methods:
Seventy-five patients were enrolled in the study. Serum S100B was collected at the beginning of the surgery, and 6, 12, 24 h after surgery. S100B z-scores were calculated based on norms for age. Neurological evolutions were done before surgery and at discharge by the Pediatric Stroke Outcome Measure (PSOM). New neurological deficit (NND) was defined as a 1 point increase on the PSOM scale.
Results:
Twenty patients had an NND after cardiac surgery. Medical background was similar between the groups with and without NND. S100B z-scores were significantly higher in the NND group at all time points after surgery. Using a cut-off of 3 z-score at 6 h after surgery, the positive predictive value was 79% and the negative predictive value was 90%.
Conclusions:
S100B is a potent early biomarker for brain injury after cardiac surgery. Hopefully, S100B could be used to prevent progression of brain injuries after cardiac surgery.
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