RESUMEN
INTRODUCTION: Postpancreaticoduodenectomy hemorrhage (PPH) is a serious complication. Fatty or nonfibrous pancreas, or both, is a risk factor for pancreatic fistula. This study assessed various prognostic factors for interventional procedures for PPH, also focusing on the degree of pancreatic fatty infiltration/fibrosis evaluated histopathologically. MATERIAL AND METHODS: The participants were 29 patients with PPH who underwent endovascular treatment from September 2001 to March 2020. Univariate analysis was performed to determine whether the histopathological degree of pancreatic fatty infiltration/fibrosis and other factors were associated with complications and mortality after endovascular treatment for PPH. RESULTS: Of 39 treatment sessions overall, 38 (97%) achieved technical success and 34 (87%) had clinical success. In-hospital mortality occurred in five patients (17%). No association was found between the pancreatic fistula and the histopathological degree of pancreatic fatty infiltration/fibrosis. Fourteen patients with hemorrhagic shock before endovascular treatment included all five patients with in-hospital mortality, while the 15 patients without hemorrhagic shock survived (P = 0.017). A bleeding tendency was associated with complications after endovascular treatment for PPH (P = 0.033). CONCLUSIONS: Although our results revealed no significant relation between the histopathological degree of pancreatic fatty infiltration/fibrosis and clinical success, including prognosis, endovascular treatment may be effective for PPH.
RESUMEN
Arteriovenous malformations (AVMs) are vascular malformations that present high-flow direct communication between the arteries and veins, not involving the capillary beds. They can be progressive and lead to various manifestations, including abnormal skin or mucosal findings, ischemia, hemorrhage, and high-output heart failure in severe cases. AVMs often involve the head and neck region. Head and neck AVMs can present region-specific clinical manifestations, angioarchitecture, and complications, especially in cosmetic appearance and ingestion, respiratory, and neuronal functions. Therefore, when planning endovascular treatment of head and neck AVMs, physicians should consider not only the treatment strategy but also the preservation of the cosmetic appearance and critical functions. Knowledge of the functional vascular anatomy as well as treatment techniques should facilitate a successful management. This review summarizes AVMs' clinical manifestations, imaging findings, treatment strategy, and complications.
RESUMEN
BACKGROUND: Treating arteriovenous malformation (AVM) is challenging because of the high recurrence rate and because incomplete resection or embolization can induce aggressive growth. However, a standard strategy is not fully established. Although transcatheter arterial embolization (TAE) is currently almost always part of the treatment, in many cases, single treatment is not curative and only palliative. Additionally, the success and complication rates associated with TAE alone are unclear, and there has been limited study of staged TAE for facial AVMs. Furthermore, few reports have described the details of the procedure. CASE-PRESENTATION: We report two cases of AVM of the upper lip in patients who were successfully treated by staged super-selective TAE at several-month intervals using ultra-thin microcatheters and n-butyl-2-cyanoacrylate. CONCLUSION: Staged and super-selective TAE may prevent complications and provide high curability and might be a useful treatment in cases of AVM.
RESUMEN
Subclavian artery dissecting aneurysm is relatively rare and can be caused by traumatic, nontraumatic, and iatrogenic etiologies. Surgical management of subclavian artery dissecting aneurysm has been sparsely reported. Recently, due advances in endovascular techniques making them less invasive, these approaches have become more standard as treatments. Subclavian artery dissecting aneurysm management usually depends on whether there is ischemia of the tissues supplied by the subclavian artery. Furthermore, treatment strategies depend on which section of the artery is involved. In particular, treatment is difficult if the dissecting aneurysm has branching vessels. In this case report, we show that endovascular repair using a covered stent graft is a promising approach to repair a subclavian artery dissecting aneurysm. In this case, the stent graft was highly effective, and follow-up examinations showed good patency of the subclavian artery. Additional use of IVUS (Volcano Inc.; Rancho Cordova, CA, USA) is helpful to obtain the precise location of the true lumen of a dissecting aneurysm.