TAILIEUCHUNG - Ebook Vascular surgery principles and practice (4/E): Part 2
Part 2 book “Vascular surgery principles and practice” has contents: Cerebrovascular disease, visceral arterial disease, vascular disorders of the upper extremity and vasculitis, venous and lymphatic disorders, vascular trauma, compartment syndrome, vascular access, malformations and transplantation, surgical techniques. | 31 Splanchnic artery aneurysms RUSSELL A. WILLIAMS, JUAN CARLOS JIMENEZ and SAMUEL ERIC WILSON CONTENTS Splenic artery aneurysms 470 Hepatic artery aneurysm 471 Superior mesenteric artery aneurysms 472 Other splanchnic artery aneurysms 473 Intestinal branch artery aneurysms 475 References 475 Splanchnic artery aneurysms involve the celiac, superior mesenteric and inferior mesenteric arteries and their branches. They occur relatively infrequently when compared to aneurysms of the aorta and iliac vessels, partly because there is a lower overall incidence of atherosclerosis in the splanchnic circulation. Atherosclerosis, associated with the great majority of aortic and iliac aneurysms, is present in less than half of splanchnic artery aneurysms. Whilst atherosclerosis can be found in some splanchnic artery aneurysms, it is thought to be a secondary Splanchnic artery aneurysms have a diverse aetiology and a correspondingly diverse natural history, but less is known about the natural history of splanchnic aneurysms than aortic Inflammation is an important primary cause of splanchnic artery aneurysms. It may occur from a primary vasculitis such as polyarteritis nodosa, a metastatic infection such as emboli from endocarditis or an extravascular process such as pancreatitis or a penetrating peptic ulcer. Peripancreatic pseudoaneurysms are estimated to occur in 10% of patients with chronic Polyarteritis nodosa is an autoimmune vasculitis which causes multiple aneurysms, typically less than 1 cm in diameter, of the small- and medium-sized muscular arteries of the abdominal viscera and kidneys. Due to their small size, intraparenchymal location and natural history, these aneurysms rupture only occasionally and do not often require surgery. In contrast, embolomycotic aneurysms have a very unpredictable natural history, which often end in fatal rupture and, unless completely resolved on follow-up angiography, are best treated with .
đang nạp các trang xem trước
