No abstract available.
Brachial Artery

No abstract available.
Brachial Artery* ; Female* ; Humans

An injury to the brachial artery from humeral shaft fracture is uncommon but requires immediate surgery to restore the blood flow. We report a case of endovascular stenting to repair a brachial artery occlusion caused by humeral shaft fracture in a 53 year old male with a review of the relevant literature.
Brachial Artery ; Humans ; Male ; Stents

No abstract available.
Aneurysm, False ; Brachial Plexus Neuropathies ; Vertebral Artery ; Vertebral Artery Dissection

We observed a case of superficial brachial artery in the left arm of a Korean male cadaver. It was compared with the previously reported ones, and its characteristics were summarized as follows. 1. The superficial brachial artery, which arose from the axillary artery at the superior border of the teres major muscle, passed in front of the medial root of the median nerve and subsequently became to lie on the medial side of the median nerve. This artery crossed the median nerve anteriorly in the middle of the upper arm, then lay lateral to the median nerve in the lower part of the upper arm to the cubital fossa. 2. After giving off the deep brachial artery, several muscular branches and inferior ulnar collateral artery, the superficial brachial artery terminated in the cubital fossa by dividing into its two terminal branches, the radial and ulnar arteries. The superior ulnar collateral artery arose from the deep brachial artery, and the common interosseous artery from the ulnar artery. The course and distribution of the ulnar and radial arteries were normal. 3. It has been reported that a deeper artery, which takes the normal course of the brachial artery and continues as the common interosseous artery, usually coexists with the superficial brachial artery, even if the superficial brachial artery gives off both radial and ulnar arteries in the cubital fossa. But in our case, there was no deeper artery which passes deep to the median nerve. 4. It was presumed that this type of variation is produced by an unusual development of the superficial brachial artery that has been formed during early development as the main artery at the cost of complete degeneration of the normal brachial artery.
Arm ; Arteries ; Axillary Artery ; Brachial Artery* ; Cadaver ; Humans ; Male ; Median Nerve ; Radial Artery ; Ulnar Artery

BACKGROUND: The authors sought to determine whether a shallow needle approach to the axillary artery would improve complete sensory blocks of median, radial, and ulnar nerves as compared with a perpendicular approach when transarterial axillary block is performed using a scalp vein needle (23G, 3/4'). METHODS: Fifty-four patients were allocated equally to a perpendicular group (the PA group) or a shallow approach group (SA group). Sensory and motor scores were evaluated and compared in the two groups at 5-minute intervals for 20 minutes after block. The main outcome variables were rates of blockage of median, radial, and ulnar nerves. RESULTS: Excellent block rates (defined as completion of surgery using brachial plexus block alone) were obtained in both groups (SA group 77.8% vs. PA group 70.3%, P = 0.755). However, the rate of blockage of all three nerves was significantly higher in the SA group (74% vs. 40.7%, P = 0.013). Furthermore, the rate of complete sensory block of the radial nerve at 20 minutes was significantly greater in the SA group (85.2% vs. 59.3%, P = 0.033). CONCLUSIONS: A shallow needle approach to the axillary artery resulted in a significantly higher median, radial, and ulnar nerve block rate at 20 minutes after LA injection than a perpendicular approach.
Axillary Artery* ; Brachial Plexus Block* ; Brachial Plexus* ; Humans ; Needles* ; Radial Nerve ; Scalp ; Ulnar Nerve ; Veins

BACKGROUND: The authors sought to determine whether a shallow needle approach to the axillary artery would improve complete sensory blocks of median, radial, and ulnar nerves as compared with a perpendicular approach when transarterial axillary block is performed using a scalp vein needle (23G, 3/4'). METHODS: Fifty-four patients were allocated equally to a perpendicular group (the PA group) or a shallow approach group (SA group). Sensory and motor scores were evaluated and compared in the two groups at 5-minute intervals for 20 minutes after block. The main outcome variables were rates of blockage of median, radial, and ulnar nerves. RESULTS: Excellent block rates (defined as completion of surgery using brachial plexus block alone) were obtained in both groups (SA group 77.8% vs. PA group 70.3%, P = 0.755). However, the rate of blockage of all three nerves was significantly higher in the SA group (74% vs. 40.7%, P = 0.013). Furthermore, the rate of complete sensory block of the radial nerve at 20 minutes was significantly greater in the SA group (85.2% vs. 59.3%, P = 0.033). CONCLUSIONS: A shallow needle approach to the axillary artery resulted in a significantly higher median, radial, and ulnar nerve block rate at 20 minutes after LA injection than a perpendicular approach.
Axillary Artery* ; Brachial Plexus Block* ; Brachial Plexus* ; Humans ; Needles* ; Radial Nerve ; Scalp ; Ulnar Nerve ; Veins

Neurogenic tumors of brachial plexus are rare lesions. Recently I experienced a case of Schwannoma arising from the brachial plexus. Thirtyfour-year-old man presented with a slow-growing mass on the left supraclavicular area. Magnetic resonance imaging revealed a well demarcated solid mass on posterosuperior aspect of the left subclavian artery. During operation, a well-encapsulated mass was seen beneath the brachial plexus. I performed intracapsular enucleation of the tumor from the nerve in an effort to avoid damaging nerve fibers as much as possible. Post-operative neurological deficit was not found.
Brachial Plexus* ; Magnetic Resonance Imaging ; Nerve Fibers ; Neurilemmoma ; Subclavian Artery

PURPOSE: To evaluate the changes of brachial arterial Doppler waveform during immersion of the hand of young men in ice-cold water. MATERIALS AND METHODS: Doppler waveforms of brachial arteries in 11 young male patients were recorded before and during immersion of ipsilateral hand in ice-cold water(4--5 degree C). The procedure was repeated on separate days. Patterns of waveform during immersion were compared with the changes of pulsatility index. RESULTS: Four men showed high impedance waveforms, and 5 men showed low impedance waveforms during immersion both at the first and at the second study. Two men, however, showed high impedance waveforms at the first study and low impedance waveforms at the second study. The pulsatility index rose and fell in high and low impedance waveforms, respectively. CONCLUSION: The changes of brachial arterial Doppler waveforms could be classified into high and low impedance patterns, probably reflecting the acute changes in downstream impedance during immersion of hand in ice-cold water.
Brachial Artery ; Electric Impedance ; Hand* ; Humans ; Immersion* ; Male ; Water*

There are many different approaches to ultrasound-guided supraclavicular brachial plexus block (US-SCBPB), and each has a different success rate and complications. The most commonly performed US-SCBPB is the corner pocket approach in which the needle is advanced very close to the subclavian artery and pleura. Therefore, it may be associated with a risk of subclavian artery puncture or pneumothorax. We advanced the needle into the central part of the neural cluster after penetrating the sheath of the brachial plexus in US-SCBPB. We refer to this new method as the "central cluster approach." In this approach, the needle does not have to advance close to the subclavian artery or pleura. The aim of this study was to evaluate the clinical outcomes of the central cluster approach in US-SCBPB.
Brachial Plexus* ; Needles ; Pleura ; Pneumothorax ; Punctures ; Subclavian Artery ; Ultrasonography