Preliminary clinical study on the treatment of severe infantile hemangioma with high-dose propranolol in China / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the clinical results of the treatment of severe infantile hemangioma with high-dose propranolol in Chinese.</p><p><b>METHODS</b>56 cases with severe infantile hemangioma were treated with propranolol. Clinical evaluation, electrocardiography, and experimental examination of liver function and heart function were performed before treatment. The daily dose of propranolol was increased from 1 mg/kg at the first day to 1.5 mg/kg at the second day, and to 2 mg/kg at the third day. The propranolol was given twice a day. The treatment was lasted for six months. The patients were visited every month.</p><p><b>RESULTS</b>The lesion color was changed after 2-4 days of treatment in all the cases. All the lesions were dramatically improved after one month of treatment. The ulceration were healed, except one case. Until now, complete regression was achieved in 10 cases and marked improvement in 46 cases. Side effects were happened in 3 cases, including one case of abnormal liver function, one case of CK-MB increase and one case of continuous increase of CK-MB, LDH, ALT, GGT.</p><p><b>CONCLUSIONS</b>High-dose Propranolol is very effective in the treatment of infantile hemangioma with minor side effects and short disease period. It might he used as the first-line treatment for infantile hemangioma.</p>

Estrogen on stimulating the angiogenesis of children's hemangioma in vitro / 中华整形外科杂志

<p><b>OBJECTIVE</b>To demonstrate that estrogen stimulates the angiogenesis of children' s hemangioma.</p><p><b>METHODS</b>A piece of hemangioma biopsy was embedded in fibrin gel, and a model in vitro of angiogenesis of human hemangioma was then established. The angiogenesis of hemangioma in each group was interfered by the estrogen and tamoxifen. There were four groups divided into the followings: the group with estrogen, the group with tamoxifen, the group with estrogen + tamoxifen and the control. The dimension of newborn tubule area in the 3rd, 6th, 9th day after the culture was calculated to compare statistically differences among the groups.</p><p><b>RESULTS</b>In the model of angiogenesis of hemangioma, microvessels grew out from the tissue sample in 2 to 3 days after the culture, and in 8 to 9 days a complex network of microvessels had been shown, the tending to inactivity. On the 3rd,6th and 9th day after the culture the dimension of newborn tubule area of the group of estrogen [(2.84 +/- 0.20) mm2 (12.93 +/- 0.85) mm2 (22.47 +/- 1.40) mm2] were larger than those of the control [(1.98 +/- 0.17) mm2, (7.51 +/- 0.48) mm2, (11.26 +/- 0.73) mm2]. Those of the group of estrogen + tamoxifen [(1.08 +/- 0.11) mm2, (3.54 +/- 0.31) mm2, (5.72 +/- 0.40 mm2] and the group of tamoxifen [(1.13 +/- 0.14) mm2 (4.26 +/- 0.29) mm2, (6.08 +/- 0.42) mm2] were smaller than those of the groups of the estrogen and the control (P < 0.05).</p><p><b>CONCLUSIONS</b>The estrogen may stimulate the angiogenesis of children's hemangioma, and the tamoxifen may reverse the process.</p>

A three-dimension in vitro model for angiogenesis of hemangioma / 中华整形外科杂志

<p><b>OBJECTIVE</b>To create a three dimension (3D) in vitro model for angiogenesis of hemangioma.</p><p><b>METHOD</b>The fragment of hemangioma specimen was embedded in fibrin gel to set up the three-dimension (3D) in vitro model for angiogenesis of hemangioma.</p><p><b>RESULT</b>In the model, microvessels grew out from the tissue fragments at the 2nd to 3rd day after culture, and at the 8th to 9th day a compact network of microvessels come into being, then tending to be stationary. The compact network around the tissue fragment was confirmed to be blood vessels by immunohistochemistry and electron microscopy.</p><p><b>CONCLUSION</b>This model helps to study the mechanism of hemangioma angiogenesis and investigate the drugs of anti-angiogenesis.</p>