Pseudoaneurysm of the superficial temporal artery after sagittal split ramus osteotomy: A case report

Kato,Tomoki; Yoshida,Takeshi; Onishi,Yasuyuki; Watanabe,Takuma; Yamanaka,Shigeki; Fukuhara,Shizuko; Nakao,Kazumasa

doi:10.3892/etm.2023.12301

January-2024 Volume 27 Issue 1

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January-2024 Volume 27 Issue 1

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Case Report

Pseudoaneurysm of the superficial temporal artery after sagittal split ramus osteotomy: A case report

Authors:
- Tomoki Kato
- Takeshi Yoshida
- Yasuyuki Onishi
- Takuma Watanabe
- Shigeki Yamanaka
- Shizuko Fukuhara
- Kazumasa Nakao
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Affiliations: Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606‑8507, Japan, Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto 606‑8507, Japan
Article Number: 12
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Published online on: November 14, 2023

https://doi.org/10.3892/etm.2023.12301
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Abstract

Sagittal split ramus osteotomy (SSRO) is a widely performed orthognathic surgery; however, among the various reported complications of SSRO, pseudoaneurysms are rarely reported. Pseudoaneurysms are rare vascular lesions formed by damage to the arterial wall that can occur after trauma or postoperatively, causing uncontrolled bleeding. The present report describes a case of a pseudoaneurysm that occurred after SSRO in a 22‑year‑old female patient. Le Fort I osteotomy and bilateral SSRO were performed under general anesthesia to improve the gummy smile and mandibular asymmetry of the patient. While osteotomizing the medial side of the left SSRO, major bleeding occurred from the soft tissue of the posterior margin of the mandibular branch. Direct compression with gauze and a local hemostatic agent stopped the bleeding. Immediately after returning to the ward, bleeding was observed from the left wound site and marked swelling of the left buccal area occurred. Contrast‑enhanced computed tomography revealed a pseudoaneurysm of the left superficial temporal artery (STA). Subsequently, arterial embolization for the pseudoaneurysm was performed. Overall, the present report describes a rare case of pseudoaneurysm of the STA as a postoperative complication of SSRO.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Pseudoaneurysm of the superficial temporal artery after sagittal split ramus osteotomy: A case report

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