1/23. Primary aortoduodenal fistula.The aortoenteric fistula is a well-known but uncommon cause of gastrointestinal haemorrhage. It is usually secondary to previous reconstructive surgery of an abdominal aortic aneurysm. Primary aortoenteric fistula is a rare disorder which predominantly occurs in the duodenum. We report the case of a 76-year-old patient who presented with melaena and hypovolaemic shock due to a primary aortoduodenal fistula. Pathogenesis, diagnostic procedures and postmortem pathologic examination of this condition are discussed. The value of computed tomography in establishing the diagnosis is emphasized.- - - - - - - - - - ranking = 1keywords = gastrointestinal haemorrhage, haemorrhage (Clic here for more details about this article) |
2/23. Two cases of aorto-gastrointestinal fistula.We report two cases of aorto-gastrointestinal fistula. Case 1, a 60-year-old man, suffered from repeat hematemesis. He was preoperatively diagnosed as aortoesophageal fistula with thoracic aortic aneurysm and was successfully treated by graft replacement of the aneurysm. Case 2, a 73-year-old man, presented with massive gastrointestinal bleeding, yet repeat endoscopical examination did not reveal the origin of the bleeding. He died of catastrophic hematochezia. The pathological findings at autopsy revealed an aortoduodenal fistula. These two cases suggested the importance to consider an aorto-gastrointestinal fistula in the differential diagnosis of patients presenting gastrointestinal hemorrhage.- - - - - - - - - - ranking = 0.068564901596999keywords = hematochezia (Clic here for more details about this article) |
3/23. Gastrointestinal mucormycosis complicated by arterio-enteric fistula in a patient with non-Hodgkin's lymphoma.Gastrointestinal mucormycosis is a rare, often fatal, systemic infection found predominantly in immunocompromised patients. We report a case of gastrointestinal mucormycosis in a 53-year-old female with non-Hodgkin's lymphoma. Following her first course of chemotherapy, bowel obstruction developed as a result of mucormycosis. Despite treatment with antifungal therapy, she required a laparotomy owing to severe haemorrhage caused by mucormycosal invasion of her iliac artery. With continued antifungal treatment and further chemotherapy, she ultimately underwent reversal of her Hartmann's procedure and remains disease-free.- - - - - - - - - - ranking = 0.0090159953180325keywords = haemorrhage (Clic here for more details about this article) |
4/23. Primary aortoduodenal fistula complicated by abdominal aortic aneurysm.A 74-year-old male patient was operated in Vakif Gureba Hospital for aortoduodenal fistula developing from abdominal aortic aneurysm. The patient was diagnosed as abdominal aortic aneurysm after physical examination and computed tomography in another center. Appearing of melena and hematemesis gastroduodenoscopy and radionuclide scanning was performed as diagnosis. After 6 days gastrointestinal bleeding recurred in massive haemorrhage and the patient was operated with a diagnosis of aortoenteric fistula as emergency. A midline laparotomy was performed. There was a fistula between infrarenal abdominal aortic aneurysm (with diameter 8x10 cm) and the 3rd portion of the duodenum. The duodenum was resected segmental and the fistula was disconnected. Following aneurysmotomy a prosthetic graft was placed in the aortobiiliac position. The patient was discharged at the 42nd postoperative day. Primary aortoenteric fistula is a very rare consequence of untreated abdominal aortic aneurysm. The segments of intestine most frequently involved in aortoenteric fistula are the 3rd and 4th portions of the duodenum. Clinical presentation is recurrent episodes of gross gastrointestinal haemorrhage. These cases have high mortality and morbidity unless evaluated as quickly as possible and appropriate surgical intervention performed.- - - - - - - - - - ranking = 1.009015995318keywords = gastrointestinal haemorrhage, haemorrhage (Clic here for more details about this article) |
5/23. Primary aortoenteric fistula: report of six new cases.Primary aortoenteric fistula (PAEF) is defined as a communication between the native aorta and the gastrointestinal tract, in contrast to secondary fistulas, which arise between a suture line of a vascular graft and the intestine. arteriosclerosis is the predominant cause of PAEF and accounts for more than two-thirds of the cases reported. The pathogenesis is usually based on direct adhesion of a segment of the gastrointestinal tract to an aortic aneurysm, followed by progressive erosion through the bowel wall. The clinical presentation is usually one of intermittent gastrointestinal haemorrhage resulting in lethal exsanguination. Pain in the abdomen, a pulsatile abdominal mass or fever may be present. The choice of various diagnostic procedures is often decided by the clinical presentation. Esophagogastroduodenoscopy, ultrasound and CT scan may be useful in the evaluation of these patients. Current recommendations for repair include debridement of the aneurysmal aorta, repair with an in situ graft and primary repair of the gastrointestinal tract, followed by aggressive antimicrobial therapy. We present six cases of PAEF surgically treated at the St. Radboud Hospital, the Canisius Wilhelmina Hospital in Nijmegen and the Lukas Hospital in Apeldoorn over a period of 15 years.- - - - - - - - - - ranking = 1keywords = gastrointestinal haemorrhage, haemorrhage (Clic here for more details about this article) |
6/23. Aortoduodenal fistula following aortobifemoral bypass.A patient with a fistula between the aortic graft and the third portion of the duodenum was admitted in our institution and submitted to surgery that involved extra anatomical axillobifemoral bypass, prosthesis removal and bowel resection with a gastrojejunal Roux anastomosis. A prosthetic fistula after aortic surgery is a rare but potentially fatal complication. Erosion, infection and pseudoaneurysm are mechanisms in the pathogenesis of aortoenteric fistula. Because of the high mortality and morbidity, associated with secondary aortoenteric fistula, surgical treatment is always recommended. A combination of endoscopy and CT or MRI may offer the best chance of detecting a fistula, but the most important tool to achieve diagnosis is clinical suspicion. An aortoenteric fistula should always be suspected in all patients who have undergone aortic graft surgery and present with gastrointestinal haemorrhage. The authors discuss the modern management of this challenging complication of aortic surgery.- - - - - - - - - - ranking = 1keywords = gastrointestinal haemorrhage, haemorrhage (Clic here for more details about this article) |
7/23. Massive lower gastrointestinal bleeding after rejection of pancreatic transplants.BACKGROUND: This article highlights two cases of massive lower gastrointestinal bleeding in patients on dialysis after rejection of kidney-pancreas transplants. Patient 1 was a 34-year-old female with 27 years of type I diabetes, who had a kidney-pancreas transplant in 1996, which was complicated by rejection of the kidney and pancreas in 2000 and 2002, respectively. Later in 2002, she presented in shock after experiencing cramping abdominal pain and passage of large bloody stools. Patient 2 was a 38-year-old male with 26 years of type I diabetes, who had a pancreas-kidney transplant in 1998, which was complicated by rejection of the kidney and pancreas in early 2003. He presented in late 2003 with a single episode of coffee-ground emesis and two episodes of brisk hematochezia. INVESTIGATION: Arterial angiography. diagnosis: Pseudoaneurysm and small-bowel fistula from the arterial supply to the transplanted pancreas. MANAGEMENT: Angiographic embolization of the aneurysmal vessel and fistula achieved hemostasis. Patient 1 did not have her transplanted organ surgically removed and suffered a recurrent massive lower gastrointestinal bleed that proved fatal. In Patient 2, subsequent surgery and removal of the rejected pancreas was performed and the patient continues to do well.- - - - - - - - - - ranking = 0.068564901596999keywords = hematochezia (Clic here for more details about this article) |
8/23. Recurrent obscure gastrointestinal bleeding caused by aorto-enteric fistula.Aorto-enteric fistulas are rare but serious clinical conditions that may arise as a complication following abdominal aortic surgery. Clinical symptoms in affected patients range from obscure recurrent gastrointestinal bleeding and intermittent unexplained fever attacks to fulminant hematochezia and rapid exsanguination. A high degree of clinical alertness and suspicion is critical for both accurate diagnosis and timely surgical therapy in these patients. This case report describes a patient who was referred to our department six months after abdominal aortic surgery. The patient presented with septic illness and episodes of obscure gastrointestinal bleeding. Diagnostic work-up revealed a retroperitoneal infection of the aortic graft. A false aneurysm led to recurrent duodenal bleeding, which was accompanied by perforation of the obliterated aortic graft into the cecum. After immediate surgical repair, the patient recovered and continues to do well. We present a brief review of the current literature on this entity, outlining different surgical strategies and their outcomes.- - - - - - - - - - ranking = 0.068564901596999keywords = hematochezia (Clic here for more details about this article) |
9/23. Arterioenteric fistulae: diagnosis and treatment by angiography.Two cases of massive gastrointestinal haemorrhage caused by arterioenteric fistulae are presented. In both cases, bleeding was controlled by interventional angiography. In the first case, a fistula between an aberrant right subclavian artery and a reconstructed oesophagus was temporarily occluded with a balloon catheter as a pre-surgical measure. In the second case a communication between the external iliac artery and the colon in a patient with invasive cervical cancer was treated by embolization. An arterioenteric fistula should be considered as a possible cause of acute gastrointestinal haemorrhage in post-operative or cancer patients and aortography or pelvic arteriography may be required to make the diagnosis.- - - - - - - - - - ranking = 2keywords = gastrointestinal haemorrhage, haemorrhage (Clic here for more details about this article) |
10/23. Fistulisation of an iliac pseudoaneurysm into the appendix. Presentation of a case and a review of the literature.A case of ilioappendiceal fistula is presented. The patient had previously been operated on for a ruptured aneurysm of the common iliac artery. 21 years later he developed occult gastrointestinal bleeding without signs of infection. colonoscopy revealed bloody faeces and an isotope scan haemorrhage in the ascending colon. laparotomy and right hemicolectomy was performed without identifying the fistula. The head of the appendix was left attached to the scarred peritoneal wall. As the bleeding continued, a second laparotomy was performed revealing an iliac pseudoaneurysm with fistulisation into the head of the appendix. Vascular reconstruction was attempted, but the patient succumbed to massive bleeding on the operating table.- - - - - - - - - - ranking = 0.0090159953180325keywords = haemorrhage (Clic here for more details about this article) |
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