• Mary Lyn Stein, Jesse J Esch, and Katherine L Zaleski.
• Department of Anesthesia, Harvard Medical School, Boston, MA; Division of Cardiac Anesthesia, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, MA.
• J. Cardiothorac. Vasc. Anesth. 2024 Nov 1; 38 (11): 263026352630-2635.

ObjectiveTo describe clinical characteristics and outcomes, including transfusion requirements, in pediatric patients with congenital heart disease undergoing aspiration thrombectomy.DesignRetrospective chart review.SettingQuaternary academic children's hospital.ParticipantsPatients aged <18 years with congenital heart disease undergoing aspiration thrombectomy between November 2017 and February 2022.Measurements And Main ResultsThirteen patients underwent mechanical thrombectomy with the Penumbra Indigo System. Their median age was 3.8 years, and median weight was 15.2 kg. Seven patients had palliated single ventricle circulation, and 6 had biventricular circulation. Nine patients had intensive care unit (ICU) admission before the procedure, and 12 required ICU admission after the procedure. Indications for thrombectomy included systemic venous thrombus in 7 patients, pulmonary arterial thrombus in 3 patients, systemic arterial thrombus in 2 patients, and systemic-to-pulmonary shunt occlusion in 1 patient. The median estimated blood loss was 7.7 mL/kg (interquartile range [IQR], 1.4-15.8 mL/kg; range, 0.5-51.5 mL/kg). Seven patients required intraoperative transfusion of packed red blood cells (n = 4), fresh frozen plasma (n = 2), platelets (n = 3), and/or cryoprecipitate (n = 1). In the patients requiring transfusion, the median transfusion volume was 22 mL/kg (IQR, 14.1-59.7 mL/kg, 9.3-132.8 mL/kg). Thrombectomy was successful in 8 of 13 patients, although 3 of these 8 patients experienced recurrent thrombosis.ConclusionsMechanical aspiration thrombectomy is being increasingly used to treat critically ill pediatric patients and presents unique anesthetic considerations, particularly related to the need for volume and blood product resuscitation.Copyright © 2024 Elsevier Inc. All rights reserved.

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