• Ghassan A Shaath, Jijeh Abdulraouf M Z AMZ Division of Pediatric Cardiac Intensive Care Unit, Department of Cardiac Sciences, King Abdulaziz Cardiac Center, King Abdulaziz Medical City, Mi, Sameh R Ismail, Omar Hijazi, Riyadh Abu Sulaiman, Wedad Almadani, Mohammed Husam Hamadah, Hani K Najm, and Mohamed S Kabbani.
• Division of Pediatric Cardiac Intensive Care Unit, Department of Cardiac Sciences, King Abdulaziz Cardiac Center, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Kingdom of Saudi Arabia.
• Pediatr Crit Care Me. 2020 Mar 1; 21 (3): 235-239.

ObjectivesCapillary leak syndrome can be severe in children after open-heart surgery which may hinder sternum closure and described as mediastinal tamponade. Reopening the sternum postoperatively may help maintaining hemodynamics and respiratory function. We looked for predictors that indicate the need for reopening the sternum.DesignA retrospective cohort study.SettingA single cardiac center experience from 2009 to end of 2015.PatientsAll children who required emergent reopening the sternum in the pediatric cardiac ICU after cardiac surgery were grouped as index cases and matched to a control group for age, body weight, cardiac diagnosis, and type of repair (single vs biventricular).InterventionsEmergent reopening the sternum.Measurements And Main ResultsWith a ratio of two control cases for each index case, variables related to cardiac output (predictors) were collected in a time line of 12, 6 hours, and just before reopening the sternum. Morbidities and mortality were also reviewed. Thirty-three index cases were compared with 63 control cases. Hospital stay and hospital-acquired infections were the same between the groups. Ventilation hours were longer in the index cases. Temperature gap more than 3°C, inotropic score more than 14, and acute kidney injury indicated by doubled blood urea nitrogen and creatinine were higher in the index group 6 hours before reopening the sternum. Mortality was more in the reopening sternum group with higher risk when extracorporeal membrane oxygenation was needed.ConclusionsLow cardiac output after cardiac surgery in children in form of temperature gap more than 3°C, inotropic score more than 14, and acute kidney injury may predict the need of reopening the sternum. Rate of mortality was higher in the reopening sternum group when extracorporeal membrane oxygenation was needed.

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