Accidental guide wire migration and late percutaneous externalization after central venous catheterization.

A 70-year-old man was admitted to the emergency department with recent spontaneous externalization of a metallic device from his right inner thigh. He had been experiencing mild local pain for 2 weeks and had a recent hospitalization due to cardiogenic hemodynamic instability, requiring a central venous catheter placement in his right internal jugular vein 3 months earlier. Doppler ultrasound confirmed the intravascular foreign body hypothesis as a guidewire was identified inside the right femoral vein, associated with femoropopliteal venous thrombosis.

Evaluation of endolaser thermoablation of the small saphenous vein under local anesthesia.

Background: The small saphenous vein (SSV) is affected in 15% of chronic venous insufficiency (CVI) cases. Conventional surgery is the standard technique for treatment of SSV insufficiency, but sural nerve injury is a complication of great concern. Endovenous laser ablation is a surgical technique for treatment of CVI that is considered likely to reduce morbidity and mortality.

Endovascular treatment of subclavian artery injury with a complex post-traumatic fistula: Case report.

Background: Endovascular treatment in trauma is a promising strategy to reduce perioperative morbidity and mortality. We report the case of a gunshot wound causing an initially undiagnosed subclavian artery injury, with delayed progression to a complex, difficult-to-manage arteriovenous (AV) fistula. Placement of an encapsulated endovascular stent graft resolved the primary lesion, but persistent cervical arteriovenous communications were only repaired after multiple, sequential embolization procedures.

Effects of arginine on abdominal wall wound healing in Wistar rats.

Objective: to evaluate the effects of arginine on abdominal wall healing in rats.

Methods: we submitted 20 Wistar rats to laparotomy and divided them into two groups, arginine and control, which then received, respectively, daily intraperitoneal treatment with arginine (300mg/kg/day) and weight-equivalent phosphate buffered solution, during five days. On the seventh postoperative day, we collected blood and scar wall samples from both groups.

Influence of linear intravenous energy density on the success of intravenous laser ablation for treatment of chronic venous insufficiency.

Background: It is relevant to elucidate the influence that mean linear endovenous energy density (LEED) has on the success of endovenous laser ablation treatment for chronic venous insufficiency, in order to reduce the method's adverse effects.

Objectives: To evaluate the influence of mean LEED on the prevalence of saphenous closure 30 days after the laser ablation procedure.

Methods: 153 lower limbs from 118 patients seen at a tertiary hospital and treated for chronic venous insufficiency with endovenous 1470 nm laser ablation under local anesthesia were evaluated.

[Not Available].

Background: It is important to acquire technical knowledge about the power and linear endovenous energy density (LEED) settings needed to achieve the ultimate goal of endovenous laser ablation (EVLA).

Objectives: To evaluate the influence of different LEEDs in terms of patency and presence of reflux and to determine clinical outcomes.

Methods: Sixty great saphenous veins (GSVs) were included.

[Not Available].

Background: Endovenous laser treatment of saphenous veins offers patients a procedure with low rates of complications and an early return to occupational activities.

Objective: To compare rates of formation of bruising, of paresthesia along the path of the great saphenous vein (GSV), and of GSV obliteration 30 days after thermal ablation in the thigh, performed with or without tumescence and using two different types of fiber.

Methods: This was a prospective study, analyzing three groups of patients who underwent GSV thermal ablation in the thigh, using a wavelength of 1470 nm.

Development of an ex vivo model of endovenous laser ablation of the great saphenous vein in a pilot study.

Purpose: To develop an ex vivo model for the analysis of macroscopic, histological and immunohistochemical changes after experimental endovenous laser ablation (EVLA) of the great saphenous vein (GSV).

Methods: We describe a model produced with glass tubes and introducer sheaths to mimic the physiological conditions of EVLA procedures, such as tumescence and blood flow. A pilot study was conducted to evaluate an ex vivo procedure of EVLA of an incompetent GSV segment using a 1470-nm radial fiber diode laser (7 W power) and an automatic pull-back device.

[Not Available].

Endothermal heat-induced thrombosis (EHIT) is defined as propagation of a thrombus from a superficial vein into a deeper vein and is generally considered clinically insignificant if the thrombus does not propagate to the deep venous system. The condition can be treated with anticoagulation therapy, although monitoring may be sufficient, especially in less severe cases. In this paper we report on two cases of EHIT that met the criteria for indication of low molecular weight heparin until resolution of symptoms.

Persistent below-knee great saphenous vein reflux after above-knee endovenous laser ablation with 1470-nm laser: a prospective study.

Background: In endovenous laser ablation (EVLA), the great saphenous vein (GSV) is usually ablated from the knee to the groin, with no treatment of the below-knee segment regardless of its reflux status. However, persistent below-knee GSV reflux appears to be responsible for residual varicosities and symptoms of venous disease.

Objectives: To evaluate clinical and duplex ultrasound (DUS) outcomes of the below-knee segment of the GSV after above-knee EVLA associated with conventional surgical treatment of varicosities and incompetent perforating veins.