Active clinical trials for "Fistula"

VAVASC trial is an observational multicentre study. The aim of this trial is to validate AVAS (arteriovenous vascular access stage) classification. The classification is used for determining which type of access is the most suitable for the patient on the basis of the patient´s vascular anatomy The methodology of this trial is to apply AVAS classification on patients who are indicated for creation of vascular access for hemodialysis. Data on these patients (vascular anatomy status, AVAS type, and predicted type of arterio venous access, demographic data etc.) will be than statistically analysed. Patients will then undergo creation of the selected arteriovenous access. They will be observed in terms of the access functionality. The follow up will be 1 to 3 years. The second aim of this study is to evaluate the relationship between AVAS classification and uninterrupted use of the created arterio venous access.

Spinal dural arteriovenous fistulas (SDAVFs) are the most common vascular disorder of the spine and account for approximately 70% of spinal vascular malformation.They are a rare pathology with an excepted incidence of only 5-10 new cases per million inhabitants per year. Most fistulas are found in the thoracolumbar region and > 80% of all SDAVFs are located between T6 and L2, whereas the cranio-cervical, cervical and sacral fistulas are more rare. SDAVFs have an overwhelmingly male predominance (80%), with an age presentation in the fifth or sixth dacede. It is presumed that SDAVFs are acquired diseases. A typical SDAVF is located inside the dural mater close to nerve root. It is fed by a radiculomeningeal artery and enters a radicular vein that merges in the perimedullary plexus. The presence of a shunt leads to a reversal of blood flow to the spinal cord venous system, which then induces venous hypertensive myelopathy.

The aim of this study is to collect systematically and proactively data regarding the performance of Neuro-Patch, like complications and handling, under daily clinical practice when used as intended by the manufacturer

The aim of this study is to compare the clinical results of combining a pedicle connective palatal flap with a trapezoid buccal flap with the standard buccal flap alone in the closure of oro-antral fistula (OAF), and the buccal flap combined with leukocyte and platelet rich fibrin.

In the case of cardiovascular diseases such as coronary artery disease, cerebrovascular disease, and peripheral arterial disease, there are many studies that the use of antiplatelet agents is very helpful in improving the vascular patency rate, but there are not many studies on the use of antiplatelet agents in the dialysis approach. The basis for use is insufficient. There is a lack of research on whether maintaining a state in which platelet activation is suppressed is helpful in improving dialysis access patency. Therefore, we conducted this study to determine whether the degree of platelet activation affects the patency of vascular access.

Patients who are diagnosed with periampullary cancer will be performed pancreaticoduodenectomy with 3 types of pancreatic-jejunal anastomosis reconstructions. The investigator will analysis the complication of pancreatic fistula about: the clinical symptoms, laboratory test changing, intra-operative morphology, the risk factors

This multi-site study will be done across Hepatobiliary and Pancreatic Surgery Department at Cho Ray Hospital and University and Pharmacy Center. Patients who are diagnosed with periampullary cancer from August 2021 to August 2023 will be underwent pancreaticoduodenectomy. We will follow-up for their pancreatic fistula and bleeding complication and analysis some risk factors.

Endoscopic treatment of early post-operative fistula in patients with underlying esophageal or gastric cancer has now become the standard of care. However, data regarding the yield of this type of treatment is lacking. This study aims to evaluate endoscopic management of this post-operative complication. The main outcome of this prospective observational study conducted in tertiary centers in France is fistula healing defined as the absence of collection on CT scan (with opacification) in a patient on PO diet, 3 months after the end of the endoscopic treatment.

Assessment of changes of renal hemodynamics by multiparametric MRI after closure of AVF access.

This is database designed to explore clinical outcomes related to vascular assess in the population of Northern Ireland with CKD Stage 5 and End-stage Renal Failure.