Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study.

Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study. Research Abstract Details 

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Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study. Abstract Text:

Parul Mittal,Shweta Shenoy,Jaspal S Sandhu,

ABSTRACT: BACKGROUND: A bloodless operative field is considered mandatory for most surgical procedures on the upper and lower extremity. This is accomplished by using either an Esmarch bandage or a pneumatic tourniquet, but a number of complications are associated with both. Nerve palsy is one of the most frequently encountered complications of this procedure. Wider cuffs have been found to cause reduced risk of tourniquet induced injury to the underlying soft tissues than the narrower ones due to the fact that lower occlusion pressures are caused by the former. To address and investigate this question, conduction in the median nerve has been measured proximal to tourniquet as well as distal to the tourniquet. Parameters of nerve conduction measured are nerve conduction velocity, latency and amplitude. METHODS: Sphygmomanometer cuffs with widths 14 cm and 7 cm were applied to the upper extremities of 20 healthy, normotensive volunteers (9 males and 11 females with age ranging from 22 to 27). Systolic blood pressure was measured first and then the cuff was inflated to about 20-30 mm Hg above it and was kept inflated for 15 minutes. Recordings were done prior to, for the period of tourniquet inflation, and following release of the tourniquet. RESULTS: Nerve conduction was found to be more severely affected by the 14 cm cuff than the 7 cm cuff. CONCLUSION: Wider cuffs resulted in more severe changes in the nerve. This brings us to the conclusion that though lower inflation pressures are required for the occlusion of the blood supply using wider cuffs, the nerve conduction is more severely affected by the wider ones. Both electrophysiological changes and occlusion pressure should be kept in mind while choosing the width of the cuff.

Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study. Publishing Authors By Initials

P Mittal,S Shenoy,JS Sandhu,

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Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of orthopaedic surgery and research

VOLUME: 3

Page Numbers: 1

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ISSN: 1749-799X

DAY: 9

MONTH: 01

YEAR: 2008

Effect of different cuff widths on the motor nerve conduction of the median nerve: an experimental study. Information

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LANGUAGE: eng

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AFFILIATION: Department of Sports Medicine and Physiotherapy, Guru Nanak Dev University, Amritsar, India. parul_physio@yahoo.co.in.

Country: England

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MEDLINETA: J Orthop Surg

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