Successful Endovascular Management of Pseudoaneurysm following Transarterial Chemoembolization: A Case Report.

Background and Objectives: Transarterial chemoembolization (TACE) is a widely accepted treatment for hepatocellular carcinoma (HCC). Regarding TACE, arterial injuries, such as hepatic artery spasm or dissection, can also occur, although pseudoaneurysms are rare. We report a case of pseudoaneurysm following TACE. Materials and Methods: A 78-year-old man had been undergoing TACE for HCC in segment 8 of the liver for the past 5 years, with the most recent TACE procedure performed approximately 1 month prior. He presented to the emergency department with melena that persisted for 5 days. Computed tomography revealed a pseudoaneurysm in the S8 hepatic artery with hemobilia. Results: the pseudoaneurysm was successfully treated by N-Butyl-cyanoacrylate glue embolization. Conclusions: In patients that have undergone TACE presenting with melena and hemobilia identified on CT, consideration of hepatic artery pseudoaneurysm is crucial. Such cases can be safely and effectively treated with endovascular managements.

[A Case of Hepatocellular Carcinoma with Haemobilia after Transcatheter Hepatic Arterial Embolization for Tumor Rupture].

A 79-year-old man was scheduled for surgery for hepatocellular carcinoma(HCC)after transcatheter hepatic arterial embolization for rupture. Two weeks before surgery, the patient came to our hospital with a chief complaint of back pain. First, we performed biliary drainage, under the diagnosis of HCC with obstructive jaundice due to haemobilia. Hepatectomy was performed when the patient's condition stabilized. It should be kept in mind that haemobilia may occur after TAE for HCC with bile duct tumor thrombus, and appropriate treatment should be performed when bleeding occurs.

Acute hemorrhagic cholecystitis as a rare cause of hemobilia.

Hemobilia is an unusual type of gastrointestinal bleeding most frequently due to iatrogenic injury, trauma, or neoplasia. Acute cholecystitis as a cause of hemobilia is rare. We present the case study of a patient with bleeding from eroded gallbladder mucosa in the setting of severe calculous cholecystitis. The hemorrhagic episode was preceded by acute ERCP due to obstructive icterus with extraction of the calculi, followed by the development of severe acute pancreatitis. These factors initially misled the diagnosis. The bleeding was not hemodynamically important and routine diagnostic methods did not reveal its exact source. Direct choledochoscopy (SpyGlassTM) proved to be helpful in determining the right diagnosis, as it ruled out any injury or tumor in the main bile ducts and considerably supported the assumption of intrabladder bleeding. Surgical revision confirmed the cause, and subsequent cholecystectomy solved the whole problem.

[Hemobilia as a sign of arterio-biliary fistula]. / Gemobiliya kak proyavlenie arteriobiliarnoi fistuly.

Hepatic artery aneurysms (HAA) are rare (20% of all visceral arteries). Most often, HAAs are asymptomatic and detected at autopsy. However, their ruptures and/or bleeding following pressure ulcers in visceral gastrointestinal organs are a significant clinical and diagnostic problem. We present 2 patients with obstructive jaundice and hemobilia. Diagnostics revealed aneurysm of the right hepatic artery with arterio-biliary fistula. Life-threatening hemobilia is a consequence of HAA rupture into biliary system. Endovascular approach is preferable for HAA without clinical manifestations. Awareness of this disease is important for early detection and active surgical intervention before possible complications.

Transcatheter arterial embolization for massive hemobilia with N-butyl cyanoacrylate (NBCA) Glubran 2.

BACKGROUND: Massive hemobilia is a life-threatening condition and therapeutic challenge. Few studies have demonstrated the use of N-butyl cyanoacrylate (NBCA) for massive hemobilia. PURPOSE: To investigate the efficacy and safety of transcatheter arterial embolization (TAE) using NBCA Glubran 2 for massive hemobilia. MATERIAL AND METHODS: Between January 2012 and December 2019, the data of 26 patients (mean age 63.4 ± 12.6 years) with massive hemobilia were retrospectively evaluated for TAE using NBCA. The patients' baseline characteristics, severities of hemobilia, and imaging findings were collected. Emergent TAE was performed using 1:2-1:4 mixtures of NBCA and ethiodized oil. Technical success, clinical success, procedure-related complications, and follow-up outcomes were assessed. RESULTS: Pre-procedure arteriography demonstrated injuries to the right hepatic artery (n = 24) and cystic artery (n = 2). Initial coil embolization distal to the lesions was required in 5 (19.2%) patients to control high blood flow and prevent end-organ damage. After a mean treatment time of 11.2 ± 5.3 min, technical success was achieved in 100% of the patients without non-target embolization and catheter adhesion. Clinical success was achieved in 25 (96.2%) patients. Major complications were noted in 1 (3.8%) patient with gallbladder necrosis. During a median follow-up time of 16.5 months (range 3-24 months), two patients died due to carcinomas, whereas none of the patients experienced recurrent hemobilia, embolic material migration, or post-embolization complications. CONCLUSION: NBCA embolization for massive hemobilia is associated with rapid and effective hemostasis, as well as few major complications. This treatment modality may be a promising alternative to coil embolization.

Rapid identification of source of delayed hemobilia following endoscopic metallic stenting for malignant biliary obstruction.

Delayed hemobilia, a rare but potentially fatal complication of endoscopic metallic stenting for malignant biliary obstruction, requires prompt identification of the source of bleeding and subsequent embolization. However, hemobilia is characteristically intermittent, and computed tomography (CT) often fails to show pseudoaneurysms or extravasations. In particular, because the posterior superior pancreaticoduodenal artery (PSPDA) runs alongside the common bile duct for its whole length, it is readily obscured by metallic artifacts in that duct, such as stents, making identification of the source of bleeding by CT difficult. We have encountered three patients with delayed hemobilia from the PSPDA following endoscopic biliary stenting for malignant biliary obstruction in whom no extravasation or pseudoaneurysms were detected by contrast-enhanced CT during bleeding. However, when we identified that the PSPDA had a smaller diameter than in previous CTs in all three cases, we suspected that the PSPDA was the source of the bleeding. No extravasation or pseudoaneurysms were detected with celiac arteriography or superior mesenteric arteriography; however, extravasation and pseudoaneurysms were detected by direct PSPDA angiography. Hemostasis was achieved through embolization. Detecting a large decrease in the diameter of the PSPDA on contrast-enhanced CT during biliary bleeding may help to identify the source of that bleeding.

Hemobilia due to porto-biliary fistula complicating endoscopic retrograde cholangiopancreatography after a recent liver transplantation.

A 60-year-old woman with autoimmune hepatitis submitted to liver transplantation presented with a biliary anastomotic stenosis. An endoscopic retrograde cholangiopancreatography (ERCP) was complicated with a porto-biliary fistula due to the misplacement of a biliary stent. After multidisciplinary discussion, and the stent was endoscopically removed while a percutaneous transhepatic fully-covered self-expanded metal stent was placed in portal vein. Iatrogenic porto-biliary fistula following biliary stent placement is a rare and potentially life-threatening ERCP complication. In a suspected stent-related portal vein injury, this multidisciplinary strategy combining gastroenterology and radiology proved to be an effective and safe minimally invasive technique avoiding catastrophic consequences.

Post-Cholecystectomy Right Hepatic Artery Pseudoaneurysm Induced by Generalized Seizure: A Case Report.

Pseudoaneurysm is a rare complication of laparoscopic cholecystectomy (LC). In most cases, the patient presents with gastrointestinal bleeding or hemoperitoneum. Here, we present a case with a post-cholecystectomy right hepatic artery pseudoaneurysm (PSA) induced by a generalized seizure. A 39-year-old male was sent to the emergency room with a generalized seizure and a loss of consciousness for approximately 5 min. Diffuse abdominal pain was complained of after consciousness returned. The surgical history of LC 13 days prior was mentioned. Abdominal computer tomography (CT) revealed a lobulated fluid accumulation in the gallbladder fossa with prominent fatty stranding and suspected biloma formation. After admission for one week, sharp abdominal pain was observed. Abdominal CT angiography revealed a right hepatic artery pseudoaneurysm. Transcatheter arterial embolization was performed with a total of seven platinum coils. In conclusion, it is important for doctors to take pseudoaneurysm into consideration in the patient who presents with seizure attack after receiving LC. Late discovery of PSA when it is ruptured can lead to fatal conditions, such as severe hemoperitoneum.

Percutaneous stone removal using a compliant balloon after papillary balloon dilatation.

PURPOSE: To evaluate the safety and efficacy of percutaneous stone removal using a compliant balloon after papillary balloon dilatation. MATERIAL AND METHODS: Between March 2014 and May 2020, 123 patients with choledocholithiasis, in whom endoscopy was unsuccessful, were enrolled in this study. The ampulla of Vater was dilated using a noncompliant balloon, and stone removal was attempted via a pushing maneuver using an endoscopic stone extraction balloon. Clinical and technical success rates, complications, and risk factors for failure and complications were evaluated. RESULTS: Biliary stones were completely removed in 118 of 123 patients. Major complications occurred in five patients. One patient experienced duodenal bleeding, which was successfully treated by endoscopy. Hemobilia occurred in three patients, which required transfusion, and one patient experienced four days of abdominal pain. Minor complications, including self-limiting pain, effusion, minimal hemobilia, elevated amylase and fever, occurred in 21 patients. Stone size was the only significant risk factor associated with the rate of complications (Odds ratio: 1.14, 95% confidence interval = 1.04, 1.26). Bilirubin and white blood cell levels significantly decreased after the procedure. CONCLUSION: Percutaneous stone removal using a compliant balloon after papillary balloon dilatation is a safe and effective method in patients in whom endoscopic or surgical treatment is not feasible. Abbreviations: ERCP: endoscopic retrograde cholangiopancreatography; PTBD: percutaneous transhepatic biliary drainage.

[Hemobilia due to ruptured superior pancreaticoduodenal pseudoaneurysm after chemoradiotherapy for pancreatic head cancer: an autopsy case report].

A 78-year-old man came to our department because of obstructive jaundice, and was diagnosed as pancreatic head cancer. He underwent chemoradiation therapy. A metal stent was inserted into the common bile duct and the patient was followed up on an outpatient basis. The patient visited our emergency department 46 days after stent insertion due to abdominal pain. The patient was diagnosed with ruptured pseudoaneurysm of the superior pancreaticoduodenal artery by angiography and treated with coil embolization. He died due to sudden deterioration the next day. Pathological autopsy revealed that the cause of the ruptured pseudoaneurysm appeared to be vasculopathy due to radiation therapy.

Challenges in Diagnosis and Management of Hemobilia.

Hemobilia, or hemorrhage within the biliary system, is an uncommon form of upper gastrointestinal (GI) bleeding that presents unique diagnostic and therapeutic challenges. Most cases are the result of iatrogenic trauma, although accidental trauma and a variety of inflammatory, infectious, and neoplastic processes have also been implicated. Timely diagnosis can often be difficult, as the classic triad of upper GI hemorrhage, biliary colic, and jaundice is present in a minority of cases, and there may be considerable delay in the onset of bleeding after the initial injury. Therefore, the radiologist must maintain a high index of suspicion for this condition and be attuned to its imaging characteristics across a variety of modalities. CT is the first-line diagnostic modality in evaluation of hemobilia, while catheter angiography and endoscopy play vital and complementary roles in both diagnosis and treatment. The authors review the clinical manifestations and multimodality imaging features of hemobilia, describe the wide variety of underlying causes, and highlight key management considerations.©RSNA, 2021.

Revisiting Quincke's Triad: A Case of Idiopathic Hepatic Artery Aneurysm Presenting with Obstructive Jaundice.

INTRODUCTION: Hepatic artery aneurysm (HAA) is a rare occurrence. Quincke's triad of hemobilia; abdominal pain, obstructive jaundice, and upper gastrointestinal (GI) bleeding could be detected in one-third of HAA patients. CASE PRESENTATION: We present a case of HAA with all signs of Quincke's triad and shock. The diagnosis of HAA was enforced by CT angiography. An urgent open surgical approach was elected by the surgical team. The patient underwent an uneventful resection of the HAA, and primary repair of the CHA followed with bilioenteric reconstruction. CONCLUSIONS: Recognizing the signs of Quincke's triad aids in prompt diagnosis of hemobilia in HAA, which suggests a rupture of the aneurysm or fistula formation into the biliary tree that would need urgent management by both vascular and HBP surgeons.

Percutaneous stent-in-stent placement with large cell-type stents for malignant hilar biliary obstruction.

BACKGROUND: To overcome the technical difficulty of bilateral stent-in-stent placement, large cell-type biliary stents have been developed. However, most of the studies using large cell-type stents were conducted with endoscopic method. PURPOSE: To evaluate the efficacy and safety of percutaneous stent placement with a stent-in-stent method using large cell-type stents in patients with malignant hilar biliary obstruction. MATERIAL AND METHODS: From December 2015 and October 2018, 51 patients with malignant hilar biliary obstruction were retrospectively studied. All of the patients underwent bilateral (n=46) or unilateral (n=5) stenting in a T, Y, or X configuration with a stent-in-stent method using large cell-type stents. Technical success, complications, successful internal drainage, stent patency, and patient survival were analyzed. RESULTS: A total of 118 stents were successfully placed in 51 patients (100.0%). Three patients had minor complications with self-limiting hemobilia. Major complications were not observed in any patient. Successful internal drainage was achieved in 45 patients (88.2%). Clinical follow-up information until death or the end of the study was available for 50 of 51 patients. The median patient survival was 285.5 days (95% confidence interval [CI] 197-374). Stent dysfunction occurred in 16 patients (35.6%) due to tumor ingrowth (n=9) or tumor ingrowth combined with biliary sludge (n=7) among the patients who achieved successful internal drainage. Median stent patency was 179 days (95% CI 104-271). CONCLUSION: Percutaneous stent-in-stent placement with large cell-type stents is technically feasible and safe, and can be an effective technique in patients with malignant hilar biliary obstruction.

Emergency surgery for hemobilia due to hepatic artery pseudoaneurysm rupture complicated by Mirizzi syndrome type II: a case report.

BACKGROUND: Hemobilia refers to bleeding into the biliary tract. Hepatic artery pseudoaneurysm (HAP) rupture is an uncommon cause of hemobilia, and cases of HAP associated with Mirizzi syndrome are extremely rare. Although transarterial embolization is recommended as the first-line treatment for hemobilia, surgery is sometimes required. CASE PRESENTATION: A 76-year-old woman was referred to our hospital with epigastric pain. She was febrile and had conjunctival icterus and epigastric tenderness. Laboratory tests revealed abnormal white blood cell count and liver function. An abdominal computed tomography (CT) revealed multiple calculi in the gallbladder, an incarcerated calculus in the cystic duct, and a slightly dilated common hepatic duct. Based on examination findings, she was diagnosed with Mirizzi syndrome type I, complicated by cholangitis. Intravenous antibiotics were administered, and we performed endoscopic retrograde cholangiopancreatography (ERCP) to place a drainage tube. The fever persisted; therefore, contrast-enhanced CT (CECT) was performed. This revealed portal vein thrombosis and hepatic abscesses; therefore, heparin infusion was administered. The following day, she complained of melena, and laboratory tests showed that she was anemic. ERCP was performed to change the drainage tube in the bile duct; however, bleeding from the papilla of Vater was observed. CECT demonstrated a right HAP with high-density fluid in the gallbladder and gallbladder perforation. Finally, she was diagnosed with hemobilia caused by HAP rupture, and emergency surgery was performed to secure hemostasis and control the infection. During laparotomy, we found that a right HAP had ruptured into the gallbladder. The gallbladder made a cholecystobiliary fistula, which indicated Mirizzi syndrome type II. Although we tried to repair the right hepatic artery, we later ligated it due to arterial wall vulnerability. Then, we performed subtotal cholecystectomy and inserted a T-tube into the common bile duct. There were no postoperative complications except for minor leakage from the T-tube insertion site. The patient was discharged after a total hospital stay of 7 weeks. CONCLUSIONS: We experienced an extremely rare case of emergency definitive surgery for hemobilia due to HAP rupture complicated by Mirizzi syndrome type II. Surgery might be indicated when controlling underlying infections was required.

Hemobilia due to Hepatic artery pseudoaneurysm secondary to collateral circulation formation after liver trauma: a case report.

BACKGROUND: Hemobilia due to rupture of hepatic artery pseudoaneurysm and recurrent hemorrhage caused by hepatic artery collateral circulation are both rare complications after liver trauma. There have been a number of separate reports of both complications, but no cases have been reported in which the two events occurred in the same patient. Here we report a recurrent hemorrhage in the bile duct due to hepatic artery pseudoaneurysm secondary to collateral circulation formation after hepatic artery ligation in a patient with liver trauma. CASE PRESENTATION: A 52-year-old male patient was admitted to our hospital for liver trauma (Grade IV according to the American Association for the Surgery of Trauma (AAST) grading system) with active bleeding after a traffic accident. Hepatic artery ligation was performed for hemostasis. Three months after the surgery, the patient was readmitted for melena and subsequent hematemesis. Selective angiography examination revealed the formation of collateral circulation between the superior mesenteric artery and right hepatic artery. Moreover, a ruptured hepatic artery pseudoaneurysm was observed and transcatheter arterial embolization (TAE) was performed for hemostasis at the same time. After the treatment, the patient recovered very well and had an uneventful prognosis until the last follow-up. CONCLUSION: For patients with hepatic trauma, the selection of the site of hepatic artery ligation and the diagnosis and treatment methods of postoperative biliary hemorrhage are crucial for the prognosis of the disease.

Triple Covered Metal Stent Deployment Using Side-by-Side Technique for Hemobilia due to Hepatocellular Carcinoma (with Video).

A hepatocellular carcinoma (HCC) rarely expands into the biliary tract. In this situation, because of its hypervascular nature, cholangitis or hemobilia may sometimes occur. Surgery is one of the options in this situation. However, patients with HCC and bile duct invasion are sometimes in a poor general condition, as in the case presented in this report. For such patients, surgical treatment may need to be invasive. Thus, here we report technical tips for triple covered metal stent deployment using side-by-side technique for hemobilia due to HCC. After guidewire deployments at the left, anterior, and posterior bile ducts, 6-mm covered self-expandable metal stents were placed at each bile duct. This may be useful for high-grade hepatic hilar obstruction due to HCC because drainage and hemostasis effects are obtained.

Hemobilia after bile duct resection: perforation of pseudoaneurysm into intra-pancreatic remnant bile duct: a case report.

BACKGROUND: Hemobilia occurs mainly due to iatrogenic factors such as impairment of the right hepatic or cystic artery, and/or common bile duct in hepatobiliary-pancreatic surgery. However, little or no cases with hemobilia from the intra-pancreatic remnant bile duct after bile duct resection (BDR) has been reported. Here, we report a case of massive hemobilia due to the perforation of psuedoaneurysm of the gastroduodenal artery (GDA) to the intra-pancreatic remnant bile duct after hepatectomy with BDR. CASE PRESENTATION: A 68-year-old male underwent extended right hepatectomy with BDR for gallbladder carcinoma. He presented with upper gastrointestinal bleeding 2 months after the initial surgery. Upper endoscopy identified a blood clot from the ampulla of Vater and simultaneous endoscopic balloon tamponade contributed to temporary hemostasis. Abdominal CT and angiography revealed a perforation of the psuedoaneurysm of the GDA to the intra-pancreatic remnant bile duct resulting in massive hemobilia. Subsequent selective embolization of the pseudoaneurysm with micro-coils could achieve complete hemostasis. He survived without any recurrence of cancer and bleeding. CONCLUSION: Hemobilia could occur in a patient with BDR due to perforation of the pseudoaneurysm derived from the GDA to the intra-pancreatic remnant bile duct. Endoscopic balloon tamponade was useful for a temporal hemostasis and a subsequent radiologic interventional approach.

Upper Gastrointestinal Bleeding With Hemobilia Caused by Gallstones.

BACKGROUND: Hemobilia refers to bleeding in the biliary tract, commonly due to iatrogenic, traumatic, and neoplastic causes. It is a rare source of upper gastrointestinal hemorrhage, but it can be severe and fatal. However, gallstones account for 5%-15% of hemobilia cases. CASE REPORT: A 60-year-old woman with diabetes mellitus and chronic kidney disease visited the emergency department with complaints of epigastric pain and vomiting of coffee ground-like content for 2 days. Physical examination revealed epigastric tenderness and hyperactive bowel sounds. Laboratory tests showed anemia with a hemoglobin count of 10.7 mg/dL and elevated liver function tests with total and direct bilirubin levels of 3.6 mg/dL and 2.5 mg/dL, respectively. Panendoscopy showed oozing of coffee ground-like material at the orifice of the ampulla of Vater and second portion of the duodenum, leading to suspicion of hemobilia. After admission, endoscopic retrograde cholangiopancreatography revealed common bile duct (CBD) dilatation with choledocholithiasis, biliary sludge, and filling defect at the middle section of the CBD. Endoscopic sphincterotomy with balloon lithotripsy was performed. After biliary decompression and broad-spectrum antibiotic administration, abdominal pain was relieved, and liver enzyme and total bilirubin levels improved. Symptoms of hemobilia depend on the bleeding rate and presence of bile duct obstructions due to clots. Minor and slow bleeding tend to form clots and cause biliary obstruction. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Although minor hemobilia may remain asymptomatic and tends to resolve spontaneously, the cause of hemobilia must be corrected to prevent recurrent bleeding or obstruction.

Active bleeding due to a hepatic arterial pseudoaneurysm that occurred after acute cholangitis.

We read with interest the article by Guido Villa-Gómez, Manuel Alejandro Mahler and Dante Manazzoni "A new case of pseudoaneurysm of the right hepatic artery secondary to laparoscopic cholecystectomy". A 57-year-old cholecystectomized female was admitted due to abdominal pain with an analytical pattern of cholestasis and liver enzyme alterations, with cholangitis that progressed to septic shock of a biliary origin with gradual anemia and hypotension.