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Updated: Feb 10, 2026

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
Published on: September 5, 2011
Dye laser treatment for hemorrhagic vascular lesions
Yoko Kishi1, Kenta Kikuchi1, Mariko Hasegawa1
1Department of pediatric surgery, Dokkyo Medical University Koshigaya Hospital.
Background And Aims:
It is generally thought that bleeding from a hemangioma is difficult to stop. With development of the long pulse dye laser (LPDL), it has become possible to treat hemangioma with a large blood vessel diameter. Thus, it is effective in treating infantile hemangioma and pyogenic granuloma.
Materials And Methods:
Five patients who visited our hospital from July 2015 to July 2017 due to hemorrhagic hemangioma were treated using a flash lamp excitation pulse dye laser with parameters of 7 mm spot size, 3 msec pulse width, fluence 12-14J/cm2, DCD 30 msec, and delay 30 msec.
Results:
The bleeding not only stopped, but the raised lesion was flattened in all cases.
Conclusions:
LPDL is effective for both infantile hemangioma and pyogenic granuloma. It not only stops bleeding, but also treats the vascular lesions.
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