Articles: veins.
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Bridging veins (BVs) drain the blood from the cerebral cortex into dural sinuses. BVs have one end attached to the brain and the other to the superior sagittal sinus (SSS), which is attached to the skull. Relative movement between these two structures can cause BV to rupture producing acute subdural haematoma, a head injury with a mortality rate between 30 and 90%. ⋯ The less common (4[Formula: see text]12 samples) had 2 layers and 7 to 34 times thicker collagen bundles on the outer layer. Fibre angle analysis showed that collagen was oriented mainly along the axial direction of the vessel. The von Mises fittings showed that in order to describe the fibre distribution 3 components were needed with mean angles [Formula: see text] at [Formula: see text] 0.35, 0.21, [Formula: see text] 0.02 rad or [Formula: see text] 20.2[Formula: see text], 12.1[Formula: see text], [Formula: see text] 1.2[Formula: see text] relative to the vessel's axial direction which was also the horizontal scan direction.
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J Vasc Surg Venous Lymphat Disord · Nov 2020
Interim results of bleomycin-polidocanol foam sclerotherapy as a highly efficient technique for venous malformations.
The objective of this study was to retrospectively review the clinical and radiographic outcomes of patients with venous malformations (VMs) treated with bleomycin-polidocanol foam (BPF) sclerotherapy. ⋯ BPF sclerotherapy of VMs is safe and effective. BPF sclerotherapy can be a promising first-line treatment of VMs.
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Central venous port systems are an integral part of chemotherapy. Early recognition and management of arterial malposition are crucial to prevent further complications. ⋯ After administration of the first chemotherapy the patient developed acute bihemispheric cerebral infarction and myocardial ischemia due to arterio-arterial emboli with a toxic encephalopathic component. After systemic lysis and surgical removal of the central venous port system, the patient showed a complete recovery.
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Totally implantable venous access ports are widely used in chemotherapy for malignant tumors. This retrospective study investigated the safety, technical feasibility, and device-related complications of totally implantable venous access ports implanted in the upper arm. ⋯ Implanting totally implantable venous access ports in the upper arm is feasible and safe for patients with early breast cancer, with a low rate of complications, providing good alternative to central venous ports.