Creatine kinase activity and temperature in children after cardiac surgery

Area of Science:

• Pediatric Cardiac Surgery
• Biomarkers in Critical Care
• Postoperative Complications

Background:

• Congenital heart disease surgery in children can lead to significant physiological stress.
• Serum creatine kinase (CK) and body temperature are key indicators of cellular damage and inflammatory response.
• Understanding predictors of postoperative complications is vital for improving patient outcomes.

Purpose of the Study:

• To investigate the association between preoperative and postoperative serum CK activity and postoperative temperatures.
• To identify factors linked to elevated postoperative CK levels and fever in pediatric cardiac surgery.
• To determine the relationship between these markers and the development of serious postoperative complications.

Main Methods:

• Retrospective analysis of pediatric patients undergoing congenital heart disease surgery.
• Utilized multiple linear regression, logistic regression, and analysis of variance.
• Measured preoperative and postoperative serum CK activity and postoperative temperatures.

Main Results:

• Postoperative CK activity >2000 IU/L was associated with succinylcholine use, prolonged aortic cross-clamp time (>30 min), and cardiopulmonary bypass time (>60 min).
• Elevated CK levels and fever (>38.5°C) were linked to the development of complications, including hemodynamic instability, poor perfusion, acidosis, and organ failure.
• Postoperative fever was also independently associated with increased complication rates.

Conclusions:

• Children with serum CK >2000 IU/L and fever >39.5°C post-cardiac surgery face a higher likelihood of severe complications.
• Serum CK activity and temperature are important early indicators of adverse outcomes in this population.
• These findings underscore the importance of vigilant monitoring for CK and fever to anticipate and manage complications.