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Popliteal Sciatic Nerve Block Catheter Placement for Foot Surgery

2014-07-23 21:11:05 | BioPortfolio

Summary

Hypothesis: When performed under ultrasound guidance, there is improvement in the sensory and motor blockade obtained with stimulating popliteal catheters versus those placed without nerve stimulation.

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Supportive Care

Conditions

Foot Surgery

Intervention

Placement of nerve block catheter, Placement of nerve block catheter

Location

Mayo Clinic in Florida
Jacksonville
Florida
United States
32224

Status

Recruiting

Source

Mayo Clinic

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:11:05-0400

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Medical and Biotech [MESH] Definitions

Interruption of sympathetic pathways, by local injection of an anesthetic agent, at any of four levels: peripheral nerve block, sympathetic ganglion block, extradural block, and subarachnoid block.

Infections resulting from the use of catheters. Proper aseptic technique, site of catheter placement, material composition, and virulence of the organism are all factors that can influence possible infection.

Placement of a balloon-tipped catheter into the pulmonary artery through the antecubital, subclavian, and sometimes the femoral vein. It is used to measure pulmonary artery pressure and pulmonary artery wedge pressure which reflects left atrial pressure and left ventricular end-diastolic pressure. The catheter is threaded into the right atrium, the balloon is inflated and the catheter follows the blood flow through the tricuspid valve into the right ventricle and out into the pulmonary artery.

Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.

Mechanical compression of nerves or nerve roots from internal or external causes. These may result in a conduction block to nerve impulses (due to MYELIN SHEATH dysfunction) or axonal loss. The nerve and nerve sheath injuries may be caused by ISCHEMIA; INFLAMMATION; or a direct mechanical effect.

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