BACKGROUND Thermal damage to peripheral nerves is a known complication of endovenous thermal ablation (EVA) of the small saphenous vein (SSV). Therefore, the main objective of this anatomic study was to define a safe zone in the lower leg where EVA of the SSV can be performed safely. METHODS The anatomy of the SSV and adjacent nerves was studied in 20 embalmed human specimens. The absolute di...

Pentoxifylline has several actions that improve blood rheology and tissue perfusion and may therefore potentially be applicable to diabetic neuropathy. The aims of this study were to ascertain whether 2 weeks of treatment with pentoxifylline could correct nerve conduction velocity and blood flow deficits in 6-week streptozotocin-diabetic rats and to examine whether the effects were blocked by c...

BACKGROUND The authors compared the efficacy of the different approaches to saphenous nerve block. METHODS The following approaches to saphenous nerve block were compared in 10 volunteers: perifemoral, transsartorial, block at the medial femoral condyle, below-the-knee field block, and blockade at the level of the medial malleolus. Each volunteer underwent all five blocks, and the interval be...

The ankle block is a safe and effective means of providing sensory anesthesia to the foot. The nerve supply to the foot at the level of the ankle is relatively superficial and consists of five nerve branches. The posterior tibial, which supplies the plantar aspect of the foot; the saphenous, supplying the medial portion of the foot; the deep peroneal, supplying an area between the great and sec...

The patient was a 41-year-old woman with an 8-month history of insidious sharp right groin pain and paresthesia radiating distally to the medial lower leg and foot with sitting and any activity involving hip extension. She denied any clicking in her hip. She was previously diagnosed by her internal medicine physician with a femoral hernia. However, surgical correction of hernia, as well as nons...

There is evidence that nerve flaps are superior to nerve grafts for bridging long nerve defects. Moreover, arterialized neurovenous flaps (ANVFs) have multiple potential advantages over traditional nerve flaps in this context. This paper describes a case of reconstruction of a long defect of the ulnar artery and nerve with an arterialized neurovenous free flap and presents a literature review o...

Experiments were performed to determine whether acetylcholine affects the sympathetic activation of the cutaneous veins of the dog. Changes in isometric tension of saphenous vein strips were recorded at 37°C in an organ bath. Addition of acetylcholine at 1CH to 10~ g/ml did not affect basal tension, but larger doses (5 X 1CH to 5 X 1CH g/ml) caused a contraction of the strips which varied from ...

In mammalian peripheral nerves, unmyelinated C-fibers usually outnumber myelinated A-fibers. By using transmission electron microscopy, we recently showed that the saphenous nerve of the naked mole-rat (Heterocephalus glaber) has a C-fiber deficit manifested as a substantially lower C:A-fiber ratio compared with other mammals. Here we determined the uniqueness of this C-fiber deficit by perform...

Prevention of the atrophy of denervated muscles is essential for a good outcome in facial contouring and oral reconstruction. In this study, we compared the effectiveness of end-to-end and end-to-side neurorrhaphy of the motor nerve, and end-to-end neurorrhaphy of the sensory nerve, all of which are frequently used in such reconstruction for the prevention of muscle atrophy. Wistar rats were di...

VANHOUTTE, PAUL M., AND ROBERT R. LORENZ. E$ect of temperature on reactivity of saphenous, mesenteric, and femoral veins of the dog. Am. J. Physiol. 218(6) : 1746-l 750. 1970.-The contraction of cutaneous veins of the dog caused by sympathetic nerve stimulation or by vasoactive drugs has been found previously to be potentiated by cooling and depressed by warming. To determine if this effect was...