[Fibronectin level of the blood plasma of patients with congenital heart defects]

Area of Science:

• Biochemistry
• Pediatric Cardiology
• Surgical Research

Background:

• Fibronectin (FN) is a crucial glycoprotein involved in cell adhesion and tissue repair.
• Congenital heart disease (CHD) involves structural defects present at birth, often requiring surgical intervention.
• Understanding perioperative biochemical markers like FN is vital for managing pediatric surgical patients.

Purpose of the Study:

• To investigate fibronectin (FN) levels in children with congenital heart disease (CHD) before and after surgical correction.
• To correlate preoperative FN levels with the severity of hemodynamic disorders.
• To assess the impact of surgical trauma and complications on postoperative FN levels and recovery.

Main Methods:

• Enzyme immunoassays were used to measure fibronectin (FN) levels.
• 57 pediatric patients with CHD were studied before and after surgery.
• FN levels were analyzed in relation to hemodynamic status, surgical factors, and postoperative complications.

Main Results:

• Mean FN levels in normal children (2-15 years) were 241.0 +/- 15.1 micrograms/ml.
• 56% of CHD patients showed decreased preoperative FN, linked to hemodynamic severity.
• Postoperative FN dropped below normal in 95% of patients within 3 days, with slow recovery up to 10 days.

Conclusions:

• Perioperative fibronectin (FN) levels are significantly altered in children undergoing congenital heart disease (CHD) surgery.
• Preoperative FN reduction correlates with hemodynamic compromise, while postoperative levels reflect surgical impact and complications.
• Sustained FN deficiency post-surgery highlights challenges in pediatric cardiac surgical recovery and healing.