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Clinical Observation of Subepidermal Vascular Network Flaps in Keloid Patients

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A Correction to this article was published on 19 April 2022

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Abstract

Background

There are many different keloid treatment modalities. One surgical technique is to keep the “shell” of the keloid to cover the defect. We named this “shell” keloid subepidermal vascular network flap (KSVNF), and we outlined the characteristics of this flap by observing 35 flaps in keloid patients.

Methods

A total of 35 KSVNFs were designed in 15 patients during 2020−2021. All patients underwent the operation and adjuvant radiotherapy as well as hyperbaric oxygen therapy. All flap lengths and widths were recorded, and the blood perfusion of the flaps was measured on the first day postoperation and the day of stitch removal. Flap survival and the quality of flaps were evaluated on the day of stitch removal. All harvested data were analyzed using the R (version 4.0.1) package.

Results

The mean blood perfusion on the first day postoperation (pod1) and the day of stitch removal was 120.4013 and 168.6900, respectively (p = 0.02249); 2 flaps had partial necrosis (5.714%). Receiver operating characteristic (ROC) curve analysis showed that when the length/width ratio was less than 1.05, the quality of the flap was good (AUC = 0.724), which suggests that the effective safe length/width ratio was 1.05.

Conclusion

KSVNF is an applicable method for covering the remaining wound after keloid mass removal with sufficient blood perfusion and adequate skin quality. We recommend that the length/width ratio of the flap design not exceed 1.

Level of Evidence IV

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Acknowledgement

This project was supported by the 2019 Grant of Research and Application of Clinical Diagnosis and Treatment Technology in Bei**g from Bei**g Science and Technology Commission.

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Authors and Affiliations

  1. Department of Plastic Surgery, Peking Union Medical College Hospital, No. 41 Damucang Hutong, **cheng District, Bei**g, China

    Yan Hao, Kexin Song, Tian Meng, Cheng Feng, Zhi Wang, Zheng Qi & Youbin Wang

  2. Chinese Academy of Medical Sciences & Peking Union Medical College, Bei**g, China

    Yan Hao, Mengjie Shan, Hao Liu, Qiao Chen & Yijun **a

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  1. Yan Hao
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  2. Mengjie Shan
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  11. Youbin Wang
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Correspondence to Youbin Wang.

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The authors declare that they have no conflicts of interest to disclose.

Ethical Approval and Informed Consent

This study has been approved by the Ethics Committee of Peking Union Medical College Hospital, China. Written, informed consent was obtained from all patients.

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This article was updated to correct Yan Hao’s affiliations.

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Hao, Y., Shan, M., Liu, H. et al. Clinical Observation of Subepidermal Vascular Network Flaps in Keloid Patients. Aesth Plast Surg 46, 2015–2022 (2022). https://doi.org/10.1007/s00266-022-02783-0

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