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CASE REPORT

Management of Gastroduodenal Artery Pseudoaneurysm Rupture With Duodenal Ulcer Complicated by Coil Migration

Chang, Dennis DO1; Patel, Purvi MD1; Persky, Seth MD2; Ng, Joseph MD1; Kaell, Alan MD1

Author Information
doi: 10.14309/crj.0000000000000347
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Abstract

INTRODUCTION

The true incidence of visceral artery aneurysms (VAAs) is difficult to determine because most are asymptomatic and incidentally discovered. The reported incidence is 0.01%–0.2%.1 VAAs are subcategorized as either true aneurysms or pseudoaneurysms. True aneurysms occur when all 3 layers of the blood vessels are dilated. Pseudoaneurysms arise from a tear of the vessel walls that tamponades into a fibrous capsule or hematoma because of trauma, penetrating duodenal ulcer (DU), inflammation, autoimmune diseases, or connective tissue disorders.2 VAAs most commonly occur in the splenic or hepatic artery. Only 1.5% of VAAs are found in the gastroduodenal artery (GDA).2 Endovascular embolization using coils is an alternative modality to endoscopic hemostasis in managing upper gastrointestinal (UGI) bleeding, especially for VAA and VAAs pseudoaneurysms in hemodynamically stable patients.3 However, coil migration can occur as a complication. We report a case of refractory UGI bleed due to a ruptured GDA pseudoaneurysm from a large penetrating DU. Endovascular embolization was complicated by coil migration into the base of the ulcer.

CASE REPORT

A 71-year-old man with advanced dementia presented with vague abdominal complaints and burgundy colored stools. A large amount of bright red blood returned on placement of a nasogastric tube. He was hypotensive with a hemoglobin count of 8.2 g/dL and a Glasgow-Blatchford score of 12 on arrival. Two units of packed red blood cells were urgently transfused, and an emergent esophagogastroduodenoscopy (EGD) was performed. The EGD revealed a deep, large 4-cm ulcer in the anterior aspect of the duodenal bulb with a large clot emanating from the ulcer base (Figure 1). The DU was treated with endoscopic hemostatic powder to cover the entire ulcerated area.

Figure 1.
Figure 1.:
(A) Retroflex view of the stomach showing fresh blood. (B) Endoscopic view showing a large ulcer in the anterior aspect of duodenal bulb.

He remained stable for 48 hours after treatment, but a subsequent complete blood count indicated a 2 g/dL hemoglobin loss. Celiac angiography was then performed and revealed a 1 × 1.5 cm2 pseudoaneurysm in the GDA (Figure 2). Sandwich coil embolization technique was performed across the defect using Ruby microcoils. Completion angiography of the common hepatic artery showed the coil pack had partially migrated into the defect. Active extravasation into the duodenum was identified along with further hemodynamic instability (Figure 3). Another coil pack was deployed to occlude the proximal origin of the GDA from the common hepatic artery. Subsequent completion angiography confirmed hemostasis with stabilization of the patient's blood pressure. A repeat angiogram of superior mesenteric artery showed no evidence of additional extravasation and stable positioning of the coils (Figure 4). Forty-eight hours after successful embolization, the patient's hemoglobin decreased again. A repeat EGD was performed, and a coil was seen and had partially migrated through the DU into the duodenal lumen with clot noted at the base of the ulcer (Figure 5). No additional endoscopic intervention was performed. The patient remained in the intensive care unit for 4 days for close monitoring. Owing to the patient's comorbidities, hemodynamic stability, and improving hemoglobin, further surgical intervention was withheld. The patient was discharged to a long-term care facility with the coil left in the duodenum without further complications.

Figure 2.
Figure 2.:
Angiogram showing pseudoaneurysm in the gastroduodenal artery.
Figure 3.
Figure 3.:
Extravasation of contrast and migration of coils.
Figure 4.
Figure 4.:
Superior mesenteric artery completion angiogram showing coils proximal to the pseudoaneurysm in the gastroduodenal artery with collateral blood flow without extravasation.
Figure 5.
Figure 5.:
(A) Duodenal bulb with ulcer in sight. (B) Partially perforated coil with clot at base.

DISCUSSION

Although GDA aneurysm and pseudoaneurysm rupture are a rare cause of UGI bleed, GDA aneurysm has a 21% mortality when it ruptures in the duodenum.2 GDA pseudoaneurysms are commonly associated with chronic pancreatitis (47%), alcohol abuse (25%), peptic ulcer disease (17%), and cholecystectomy (3%).2 In fewer cases, pseudoaneurysms are associated with Marfan syndrome, Ehlers-Danlos syndrome, cirrhosis, fibromuscular dysplasia, congenital absence of celiac axis, peripheral artery disease, or septic emboli.2 The patient has no history of the diseases mentioned above. The etiology of GDA pseudoaneurysm in this patient was suspected because of untreated DU that penetrated into the adjacent vessel.

Although rare, GDA pseudoaneurysm has a 75% incidence of rupture.1 Therefore, a GDA pseudoaneurysm should be repaired whenever possible owing to the high risk of rupture and poor outcome. Endovascular embolization is now the treatment of choice for VAA and visceral artery pseudoaneurysms.3 In addition, endovascular stenting, percutaneous, or endoscopic ultrasound-guided thrombin injection have also been discussed to control VAA bleed.3,4 In hemodynamically unstable patients or in those who are refractory to the aforementioned treatments, surgical revascularization, vessel ligation, and aneurysmal sac exclusions are indicated.2,3 The overall complications from endovascular embolization are less than 5%, and systemic coil migration occurs in 3% of the time.4 At least 17 cases of UGI bleeding with coil migrating into the GI tract from GDA were reported.5–20 Fourteen of those cases reported the involvement of DU.5–9,12–19 Twelve of the cases had a DU identified on EGD before GDA coil embolization.5,6,8,9,12,13,15,17–19 Two of those cases identified GDA pseudoaneurysm.9,18 The location of the ulcer in the duodenum was inconsistently reported in the cases. Protruding coils have been observed immediately after placement and up to 10 years later.16,20 Coil migration can result in GI bleeding, tissue granulation, and bowel ischemia, or it may pass through the GI tract without complications.10,15,19,20 In most of the cases, coil migrations were managed conservatively without sequelae.10,13–16,19,20 One case reports the use of thrombin injection.4 In other cases, coil migrations were not intervened in time and resulted in expiration from massive hemorrhage.

In conclusion, GDA pseudoaneurysms can be a source of upper GI bleed. Although endovascular embolization is the treatment of choice, coil migration can occur. We suspect that patients with impaired duodenal wall patency, such as the presence of a penetrating DU, might predispose coils to migration. More data are needed to further study the cause for coil migration and management strategy. Current literature suggests coil migrations are managed conservatively when the patient is hemodynamically stable or intervened surgically in refractory cases or in an unstable patient. Furthermore, we propose that GDA pseudoaneurysms should be considered in patients with recurrent UGI bleeding and when a large, deep DU is noted on endoscopy.

DISCLOSURES

Author contributions: D. Chang wrote the manuscript, reviewed the literature, and is the article guarantor. P. Patel, S. Persky, J. Ng, and A. Kaell edited the manuscript and revised it for intellectual content.

Financial disclosure: None to report.

Informed consent was obtained for this case report.

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© 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.