Microvascular Replantation for partial auricle Amputation: Only Arterial anastomoses and Acupuncture Bloodletting

BACKGROUND: There have been many reports on replantation of complete auricle amputation, but few reports on successful replantation of partial auricle amputation. The main reason is that the diameter of blood vessels at the end of auricle is only 0.3 mm, and it is difficult to find suitable blood vessels, especially venous vessels. The purpose of this study was to investigate the method of revascularization after partial auricle amputation. METHODS: Microvascular repairs were performed in an amputated segment with only identified artery vessels for anastomosis, and vein was unavailable for anastomosis. Postoperative acupuncture bloodletting and heparin compress treatments were planned. RESULTS: Two patients with partial ear amputation were treated at our center between 2019 and 2021. All the amputated ear were replanted successfully. No blood transfusions and no infections were observed. A week later the replanted auricles were seen, blood flow established. CONCLUSION: Microvascular repair should be considered as the best options in cases of auricular avulsion segment replantation. When no vein was available for anastomosis, only one artery repaired was feasible. Acupuncture bloodletting and heparin compress are the effective methods to treat vein congestion. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

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Two partial ear amputations were replanted with arterial-only anastomosis when no vein was available; postoperative acupuncture bloodletting and heparin compresses managed venous congestion, and both replanted auricles survived without transfusion or infection.

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