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Troponin-I for prediction of early postoperative course after pediatric cardiac surgery

F F Immer1, F Stocker, A M Seiler

  • 1Department of Cardiovascular Surgery, University Hospital, Berne, Switzerland. f.immer@bluewin.ch

Journal of the American College of Cardiology
|May 20, 1999
PubMed

Insights

Postoperative cardiac troponin-I (cTnI) levels in children undergoing heart surgery can predict recovery. Elevated cTnI indicates a higher risk of complications and prolonged recovery.

Area of Science:

  • Pediatric Cardiology
  • Cardiac Surgery
  • Biomarkers

Background:

  • Cardiac troponin-I (cTnI) is a sensitive marker for myocardial damage in children.
  • Perioperative myocardial damage impacts postoperative cardiac performance.
  • Assessing cTnI aids in understanding outcomes after pediatric cardiac surgery.

Purpose of the Study:

  • To evaluate the prognostic value of cardiac troponin-I (cTnI) for the early postoperative course in pediatric cardiac surgery.
  • To correlate cTnI levels with key postoperative clinical parameters.

Main Methods:

  • Seventy-three children undergoing elective congenital heart disease surgery were studied.
  • Serial cTnI levels were measured and correlated with inotropic support, renal/hepatic function, and intubation duration.
  • Patients with prolonged recovery were specifically analyzed based on cTnI levels.

Main Results:

  • Cutoff values for high-risk cTnI were established at 25 µg/L (4h post-ICU admission) and 35 µg/L (peak in 24h).
  • Significant correlations were found between cTnI levels and the need for inotropic support, renal dysfunction severity, and intubation duration.

Conclusions:

  • Serum cTnI levels 4 hours after ICU admission predict the early postoperative course in pediatric cardiac surgery patients.
  • cTnI levels correlate with the incidence of significant postoperative complications, aiding in risk stratification.
Abstract

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