Is cardiovascular evaluation necessary prior to and during beta-blocker therapy for infantile hemangiomas?: A cohort study

Abstract

BACKGROUND: Although consensus guidelines for pretreatment evaluation and monitoring of propranolol therapy in patients with infantile hemangiomas (IH) have been formulated, little is known about the cardiovascular side effects. OBJECTIVES: We sought to analyze cardiovascular evaluations in patients with IH at baseline and during treatment with an oral beta-blocker. METHODS: Data from 109 patients with IH were retrospectively analyzed. Patient and family history, pretreatment electrocardiogram (ECG), heart rate, and blood pressure were evaluated before initiation of beta-blocker therapy. Blood pressure and standardized questionnaires addressing side effects were evaluated during treatment. RESULTS: Questionnaire analyses (n = 83) identified 3 cases with a family history of cardiovascular disease in first-degree relatives. ECG findings were normal in each case and no serious complication of therapy occurred. ECG abnormalities were found in 6.5% of patients but there were no contraindications to beta-blocker therapy and no major complications. Hypotension in 9 patients did not require therapy adjustment. In all, 88 parents (81%) reported side effects during beta-blocker treatment. LIMITATIONS: The relatively small patient cohort is a limitation. CONCLUSION: Pretreatment ECG is of limited value for patients with an unremarkable cardiovascular history and a normal heart rate and blood pressure. Hypotension may occur during treatment.