Outcomes of vein reconstruction using bovine pericardial patch

Abstract

Background The bovine pericardium is a good alternative material to the autogenous vein in vascular reconstruction. This study aimed to evaluate the results of angioplasty in venous reconstruction using bovine pericardium and identify the risk factors for significant complications. Material and Methods A retrospective review was performed of the demographic data, clinical characteristics, and complications of patients who underwent vessel repair using bovine pericardium between February 2012 and December 2020. Univariate analysis was used to compare complication frequencies within several categories. Results There were 36 cases of patch angioplasty using bovine pericardium. The median age was 65 years; 61% of them were men. Of the 36 venous repairs, 31 (86.1%) were from cancer surgery and five (13.9%) were from iatrogenic injury. Patch shape was used in 27 cases (75.0%), while tube shape was used in nine cases (25.0%). The incidence of occlusion and partial thrombus was five (13.9%) and three (8.3%) cases, respectively. Of the nine tube-shaped angioplasties, four (44.4%) required reoperation due to early thrombosis (three cases) and hematoma (one case). Conclusion The use of a bovine pericardial patch in the reconstruction of a damaged vein from tumor invasion or iatrogenic injury is feasible. However, the complication rate of vessel patency remains substantial, especially in cases of iatrogenic injury or when a tube-shaped form is used for repair.

Right Common Femoral Vein Invasion: A Unique Case of Inguinal Ectopic Breast Cancer

“…In larger vessels, radiation should led to wall weakening, aneurysmal dilatation, rupture or thrombosis. 13 The use of a bovine pericardial patch to reconstruct a damaged vein from tumor invasion considering the loco-regional radiotherapy is feasible. 13 Despite the fact that bovine pericardial patches are frequently used for arterial reconstruction, they should provide promising results in place without evidence of recurrent infection, rupture, or revision with better handling characteristics better than a vein patch.…”

“…13 The use of a bovine pericardial patch to reconstruct a damaged vein from tumor invasion considering the loco-regional radiotherapy is feasible. 13 Despite the fact that bovine pericardial patches are frequently used for arterial reconstruction, they should provide promising results in place without evidence of recurrent infection, rupture, or revision with better handling characteristics better than a vein patch. 14 Polytetrafluoroethylene (PTFE) graft interposition in an end-to-end fashion might be necessary in terms of more extensive resection.…”

Optimized Transfer Learning Models for Breast Cancer image classification

“…This allows the weights to adapt from the features learned in the pre-trained dataset to the specific features present in both datasets. This technique is used in this study by choosing three pretrained networks which are: MobileNetV2 [7], InceptionV3 [8] and DenseNet121 [9]. The main goal of this work is to modify these three architectures in order to enhance the classification task.…”