Pseudoaneurysm of the facial artery occurred after mandibular sagittal split ramus osteotomy

Management of pseudoaneurysms of the internal maxillary artery derived from orthognathic surgery based on one case

PURPOSE

The purpose of this article is to highlight the risk of pseudoaneurysms formation after orthognathic surgery, their clinical features and management.

METHODS

A case report of a 24-year-old man who suffered a pseudoaneurysm of the internal maxillary artery after sagittal osteotomy during orthognathic is reported. After three bleeding episodes, a pseudoaneurysm was diagnosed with a computed tomography angiogram (CTA) and treated with an embolization of the internal maxillary artery with polyvinyl alcohol (PVA) successfully.

RESULTS

Pseudoaneurysms derived from the external carotid artery are an uncommon complication of orthognathic surgery, especially related to sagittal osteotomy instead of LeFort I osteotomy.

CONCLUSION

Pseudoaneurysms derived from external carotid artery branches must be suspected when patients show multiple episodes of bleeding (epistaxis or through the surgical approach) within the first two weeks after orthognathic surgery. If so, vascular CT or angiography should be performed to rule out the presence of vascular injuries. In case a pseudoaneurysm is identified, vascular embolization with N-butyl-cyanoacrylate seems to be the best treatment if available. If this treatment is not available or bleeding cannot be controlled, surgical ligature of the injured vessel is a valid treatment.

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

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.

Pseudoaneurysms and Orthognathic Surgery: A Systematic Review and a Proposed Algorithm of Treatment

This study aimed to gather existing evidence regarding the incidence, clinical presentation, and management of pseudoaneurysms (PA) after orthognathic surgery, identify the common blood vessels involved in PA, and propose a treatment algorithm based on current evidence. The protocol for this study was developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols and was registered at the International Prospective Register of Systematic Reviews under the registration number CRD42020205479. Although these are rare, oral and maxillofacial surgeons should consider PA as a possible diagnosis, specifically in the maxillary artery of patients with epistaxis, severe facial edema, and swelling following LeFort I osteotomy.

Experts' consensus on precaution and treatment for complications of sagittal split ramus osteotomy

Sagittal split ramus osteotomy (SSRO) is a versatile orthognathic procedure for correcting mandibular deformities. Various complications can possibly occur when performing SSRO, and it can even cause serious adverse consequences because of the complexity of anatomy and operative procedures. The types of complications and their accompanying clinical manifestations are closely related to the choice of diagnosis and treatment strategies and clinical outcomes. To discuss the causes, prevention, and treatment measures of various common complications of SSRO, domestic orthognathic surgery experts prepared this consensus to increase the awareness of SSRO complications, thereby ensuring safe surgical procedure and good results.

"Signs and Symptoms Tell All"-Pseudoaneurysm as a Cause of Postoperative Bleeding after Orthognathic Surgery-Report of a Case and a Systematic Review of Literature

PURPOSE

Pseudoaneurysms are one of the rare complications that can be encountered after the orthognathic surgery. We are presenting a new case of pseudoaneurysm of bilateral sphenopalatine artery after Bijaw Surgery in a young male and a systematic review of all the cases in the literature emphasizing on signs and symptoms, epistaxis or bleeding episodes and treatment outcomes.

METHODS

A systematic research strategy was planned according to the PRISMA guidelines, and articles were taken from 1986 to September, 2019. A total of 899 articles were selected for screening, out of which only 26 articles met our inclusion and exclusion criteria. These were included in the study for qualitative analysis.

RESULTS

Most PAs were associated with Lefort I osteotomy (69.7%), followed by sagittal split osteotomy (24.24%). Average intraoperative blood was 635 ml. Maximum number of episodes of epistaxis/swelling or bleeding occurred in second week. Mean bleeding episodes were 2.58 ± 0.996. The arteries commonly affected were internal maxillary artery (42%), sphenopalatine artery (27.27%), facial artery (15.15%), descending palatine artery (12.12%), internal carotid artery (9.09%) and infraorbital artery (3.03%). Embolization was treatment of choice in 81.81% cases.

CONCLUSION

If a patient has recurrent epistaxis or swelling after orthognathic surgery, it is advisable to go for diagnostic imaging like angiography without any delay. In recent times, advanced techniques and expertise are readily available for early diagnosis and management of pseudoaneurysm.

The potential for facial artery injury during mandibular third molar extraction. An anatomical study using contrast-enhanced computed tomography

The purpose of this study was to evaluate the risk of injury to the facial (FA) and related arteries during mandibular third molar (MTM) extraction using contrast-enhanced computed tomography (CE-CT). CE-CT images of the MTM region were retrospectively reviewed. The area of the MTM was equally divided into three zones in the coronal images from mesial to distal, that is, zone 1, zone 2, and zone 3. The FA, submental artery (SMA), and sublingual artery (SLA) were identified. The distance from the mandible to FA, SMA, and SLA and the diameter of the FA, SMA, and SLA was measured in three zones, respectively. The thickness of the facial soft tissues and width of the mandible were measured at their maximum. The mean distance from the FA to the buccal cortical bone in zone 1, zone 2 and zone 3 was 2.24 mm, 2.39 mm and 1.67 mm, respectively. The SMA and SLA were found to be distal to the mandible. The mean diameter of the FA was 1.26 mm in males and 1.04 mm in females, respectively (p < 0.0001). The distance between the FA and buccal cortical bone of the mandible, and the patients' weight showed moderate correlation in zones 1 and 2. Based on our findings, the FA can be damaged if the surgical invasion reaches the facial soft tissues during MTM surgery. The patients' weight might be a good predictor for FA injury when CE-CT is not available.

A rare complication of an Arteriovenous shunt after bimaxillary surgery

The most common complications following bimaxillary surgery are inferior alveolar nerve damage, hemorrhage, and relapse. Severe complications are rare, but few cases of vascular arteriovenous malformation, cavernous sinus thrombosis, formation of an aneurysm or arteriovenous shunting are reported in literature. We present a case of a 20-year-old male patient who developed a right sided tinnitus and visible pulsations close to the mandibular angle on the right side after bimaxillary surgery. CT-angiography and subsequent digital subtraction angiography (DSA) six months after surgery showed an arteriovenous fistula (AVF) from the external carotid artery to the external jugular vein. The AVF was treated by endovascular coil embolization. At six months after intervention there were no residual complaints. We discuss the possible etiology and trauma mechanisms that might have caused this pathology and present recommendations to avoid this type of complications.

Glue embolisation of a bleeding pseudoaneurysm related to surgically-assisted rapid palatal expansion

Vascular injuries after orthognathic surgery are rare, and mainly occur in young adults after Le Fort I osteotomies. We report the case of a 14-year-old girl who presented with life-threatening epistaxis one week after a surgically-assisted rapid palatal expansion (SARPE) followed by activation of a transpalatal distractor. Definitive treatment was superselective, catheter-directed, glue-embolisation of a bleeding bilobar pseudoaneurysm, which was located at an end branch of the left sphenopalatine artery.

Facial Artery Pseudoaneurysm: Challenges of Airway Management

A patient with recent jaw reconstruction presented for treatment of postoperative oropharyngeal hemorrhage. Asleep nasal fiberoptic intubation was attempted, but a rare and unanticipated complication ensued: rupture of right facial artery pseudoaneurysm. The difficult airway algorithm was followed up to the point of surgical airway. While nasal or oral fiberoptic intubation is often perceived as the safest approach for management of a difficult airway, we discuss alternative treatment strategies for patients with a facial pseudoaneurysm. Such alternatives include preoperative angiographic endovascular embolization of the vessel(s) feeding the pseudoaneurysm, and/or elective tracheostomy.

Pseudoaneurysm in internal maxillary artery after gunshot wound: Critical review and case report

INTRODUCTION

Pseudoaneurysm is a vascular injury typically caused by rupture of arteries with extravasation of blood. The involvement of this entity in facial arteries after firearm aggression is extremely rare, and they need treatment as early as possible, thus avoiding irreversible damage to patients.

STUDY DESIGN

A 40-year-old male victim of gunshot attack with an entrance orifice in the right posterior cervical region with ascending trajectory, lodging in the ipsilateral zygomatic-orbitary complex, which was submitted to removal of the bone fragments and the bullet. In the intraoperative period, the patient developed profuse hemorrhage and, after complementary examinations, he was diagnosed with pseudoaneurysm of the internal maxillary artery, which was treated by selective endovascular embolization.

RESULTS

The patient was hemodynamically stable, with no complaints and was discharged after 48 hours, without postoperative bleeding recurrences. He had no more complications after 8 months of follow-up.

CONCLUSIONS

The main forms of treatment and diagnosis of vascular lesions are reviewed, and embolization is demonstrated as a technically safe procedure with few complications. Key words:Gunshot wound, pseudoaneurysm, maxillary artery, therapeutic embolization.