Avtor/Urednik		Podnar, Simon
Naslov		Kvantitativna elektromiografija zunanje zapiralke zadnjika
Prevedeni naslov		Quantitative electromyography of the external anal sphincter muscle
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Medicinska fakulteta
Leto izdaje		2002
Obseg		str. 154
Jezik		slo
Abstrakt		Electromyography (EMG) of the external anal sphincter muscle (EAS) is an important method for the evaluation of lesions of the peripheral part of the sacral nervous system. Only a non-standardised qualitative assessment of EMG activity of the EAS and other muscles is used in clinical practice. In several laboratories around the world a number of quantitative techniques have been introduced, with other computer-based techniques being recently added. The usefulness and importance of these new techniques in the evaluation of muscles innervated by the sacral nervous system are unknown. The main purpose of the present work was to formulate a precise, evidence-based, standardised examination protocol for the EMG examination of the EAS muscle. n the first of our studies the most appropriate sites for insertion of the needle electrode into the EAS were determined. It has been shown that, for the subcutaneous part of the EAS muscle, a few mm deep, oblique insertion, 1 cm from the anal orifice is the most appropriate. On the other hand, for the deeper part of the EAS muscle, a 2-3 cm deep insertion, at an angle of 30?, positioned at the anal orifice was demonstrated to be optimal. The next study demonstrated that "high-threshold motor unit potentials (MUPs)" activated voluntarily or reflexly, are larger compared to continuously firing "low-threshold MUPs". During MUP sampling the level of muscle activity needs to be standardised, with a level at which 3-5 MUPs are sampled from a single site using the multi-MUP technique being suggested. In the third study, normative data for the number of continuously firing "low-threshold MUPs" in the subcutaneous and the deeper part of the EAS muscle using the multi-MUP technique were determined. This approach was then evaluated in patients with lesion of the cauda equina or conus medullaris and patients with idiopathic faecal incontinence. (Abstract truncated at 2000 characters).
Deskriptorji		ANUS ELECTROMYOGRAPHY LUMBOSACRAL PLEXUS FECAL INCONTINENCE