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Objective Preliminary assessment of the efficacy of propranolol on subglottic hemangioma in children on a nation-wide scale. Methods Multicentric, retrospective study of clinical files of 14 children; pre- and post-treatment endoscopies. Results Mean age at diagnosis was 2.3 (0.7–4) months. Mean percentage of airway obstruction was 68% (15–90) before propranolol introduction. Propranolol was started at 5.2 (0.7–16) months of age. This treatment was effective in all cases with a mean regression of the stenosis to 22% after 2 weeks and 12% after 4 weeks. Other medical treatments (steroids) could be stopped. In one patient, a side effect of propranolol motivated the switch to another β-blocker. In four patients, treatment was stopped after 5.2 (1–10) months with a relapse in 2 (50%) cases. One of these two patients developed a resistance to propranolol and required a surgical procedure by external approach. Conclusion This preliminary nation-wide survey confirms propranolol high effectiveness against airways’ localization of infantile hemangiomas. Propranolol also allows alleviation or cut-off of previous medical treatments. However, recurrences are possible after early treatment interruption.