Propranolol for infantile hepatic hemangioendothelioma: Clinical evaluation of drug efficacy and safety using a single-center patient cohort |
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Institution: | Department of General Surgery, Shanghai Children''s Medical Center (National Children''s Medical Center-Shanghai), Shanghai Jiaotong University School of Medicine, Shanghai, China |
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Abstract: | Introduction and objectivesInfantile hepatic hemangioendothelioma (IHHE) is a benign liver tumor, associated with hypothyroidism and vascular malformations along the skin, brain, digestive tract and other organs. Here, we determined a single-center patient cohort by evaluating the effectiveness and safety of propranolol and sirolimus for the treatment of IHHE.Patients and methodsWe performed a monocentric and observational study, based on clinical data obtained from 20 cases of IHHE treated with oral propranolol and sirolimus at the Shanghai Children's Medical Center (SCMC), between December 2017 and April 2019. All cases were confirmed by abdominal enhanced CT examination (18/20, 90%) and sustained decrease of alpha fetoprotein (AFP) (2/20, 10%).Propranolol treatment was standardized as once a day at 1.0 mg/kg for patients younger than 2 months, and twice a day at 1.0 mg/kg (per dose) for patients older than 2 months. Sirolimus was used to treat refractory IHHE patients after 6 months of propranolol treatment, and initial dosing was at 0.8 mg/m2 body surface per dose, administered every 12 h. Upon treatment, abdominal ultrasound scanning was regularly performed to evaluate any therapeutic effects. All children were followed up for 6–22 months (mean value of 12.75 months). The clinical manifestations and therapeutic effects, including complications during drug management, were reviewed after periodic follow-up.ResultsThe effective rate of propranolol for the treatment of children with IHHE was 85% (17/20). In most cases, the AFP levels gradually decreased into the normal range. A complete response (CR) was achieved in 3 cases, partial response (PR) for 14 cases, progressive disease (PD) for 2 cases and stable disease (SD) was only detected once. Lesions decreased in two PD patients after administration of oral sirolimus. No serious adverse reactions were observed.ConclusionThis study indicates that both propranolol and sirolimus were effective drugs for the treatment of children with IHHE at SCMC. |
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Keywords: | Infantile hepatic hemangioendothelioma Propranolol Sirolimus |
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