China Journal of Oral and Maxillofacial Surgery ›› 2022, Vol. 20 ›› Issue (3): 268-272.doi: 10.19438/j.cjoms.2022.03.011

• Original Articles • Previous Articles     Next Articles

Comparison of two methods of intralesional injection of pingyangmycin for the treatment of microcystic lymphatic malformations in children's lip, face

TAI Mao-zhong, CHEN Tao, LI Ke-lei, GE Chun-xiao, XU Zhen-guo, QIN Zhong-ping   

  1. Special Department of Vascular Anomalies, Linyi Tumor Hospital. Linyi 276001, Shandong Province, China
  • Received:2021-11-11 Revised:2022-01-13 Online:2022-05-20 Published:2022-05-20

Abstract: PURPOSE: To summarize the long-term clinical experience of two methods of intralesional injection of pingyangmycin for the treatment of microcystic lymphatic malformation (LM) in children's lip and face. METHODS: From January 1990 to January 2013, a total of 68 children with diffuse microcystic LM were admitted and treated. All patients received intralesional injection of pingyangmycin, and a total of 68 cases were followed up to the age of 18 years. Among 68 patients, 37 were male and 31 were female. The age at consultation ranged from 10 months to 11 years, and the median age was 3.5 years. From January 1990 to December 1998, 32 children (group A) were treated with full-layer intralesional injection of pingyangmycin at one time. From January 1999 to January 2013, 36 children (group B) were treated with in-layers intralesional injection of pingyangmycin at different times, first mucosal, and submucosa injection followed by percutaneous injection of face and lip after mucosal lesions disappeared. The therapeutic effect was evaluated according to a 4-grade system. The course of treatment, total dose of pingyangmycin were recorded, and long-term local complications were observed. SPSS 18.0 software package was used for statistical analysis. RESULTS: The patients were followed up for 5 to 25 years, there were 4 cases of grade Ⅲ and 28 cases of grade Ⅳ in group A, and 5 cases of grade Ⅲ and 31 cases of grade Ⅳ in group B. By Fisher's exact test, there was no significant difference in the efficacy rate of grade Ⅳ between group A and group B (P>0.05). The treatment course of group A was(5.9±1.4) times, and that of group B was (6.4±1.3) times. The total dose of pingyangmycin was (44.1±8.5) mg in group A and (48.2±10.6) mg in group B, respectively. In group A, 20 cases (62.5%) showed local atrophy and depression, and in group B, 1 case (2.8%) showed atrophy and depression. CONCLUSIONS: Compared with full-layer intralesional injection of pingyangmycin at one time in the treatment of microcystic lymphatic malformation, the incidence of complications of local atrophy and depression in the long term was significantly reduced when using in-layer injection at different times. After treatment, the facial appearance was good and the patients’ satisfaction was high.

Key words: Lymphatic malformation, Microcystic type, Maxillofacial region, Pingyangmycin

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