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Titolo:
Standardization of anal sphincter electromyography: normative data
Autore:
Podnar, S; Vodusek, DB; Stalberg, E;
Indirizzi:
Univ Med Ctr, Inst Clin Neurophysiol, Div Neurol, SI-1525 Ljubljana, Slovenia Univ Med Ctr Ljubljana Slovenia SI-1525 rol, SI-1525 Ljubljana, Slovenia Univ Uppsala Hosp, Dept Clin Neurophysiol, S-75185 Uppsala, Sweden Univ Uppsala Hosp Uppsala Sweden S-75185 hysiol, S-75185 Uppsala, Sweden
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 12, volume: 111, anno: 2000,
pagine: 2200 - 2207
SICI:
1388-2457(200012)111:12<2200:SOASEN>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
MULTIPLE SYSTEM ATROPHY; PROGRESSIVE SUPRANUCLEAR PALSY; UNIT ACTION-POTENTIALS; PELVIC FLOOR; INTERFERENCE PATTERN; STRESS-INCONTINENCE; GENITOURINARY PROLAPSE; PARKINSONS-DISEASE; PERINEAL MUSCLES; REFERENCE VALUES;
Keywords:
external anal sphincter; interference pattern; motor unit potentials; needle electromyography; normative data; reference values; standardization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Podnar, S Univ Med Ctr, Inst Clin Neurophysiol, Div Neurol, SI-1525 Ljubljana, Slovenia Univ Med Ctr Ljubljana Slovenia SI-1525 25 Ljubljana, Slovenia
Citazione:
S. Podnar et al., "Standardization of anal sphincter electromyography: normative data", CLIN NEU, 111(12), 2000, pp. 2200-2207

Abstract

Objectives: Electromyography (EMG) of the external anal sphincter (EAS) isimportant in the evaluation of conus/cauda lesions, the differential diagnosis of parkinsonism and anal incontinence. The aim of our study was to establish normative data in a sufficiently large group of healthy subjects, using a rigorously standardized examination technique. Methods: Sixty-four subjects (aged 19-83 years) without pelvic or neurological disorders were included. Motor unit potentials (MUPs)/interference pattern (IP) samples were obtained from the EAS using multi-MUP and turn/amplitude analyses, respectively. The effect of age, gender, parity, and constipation on MUP/IP parameters was studied. For MUP parameters the lower/upper limits for mean values, and 'outlier' limits, and for TP parameters normal 'clouds' were calculated. Results: From 112 muscles 15-30 MUPs were sampled. As no effect of evaluated factors on mean values could be demonstrated, common reference values were calculated. Lower/higher limits for mean values were: amplitude 148/661 muV, duration 3.2/7.8 ms, area 87/625 mu Vms, and number of phases 2.3/3.7. 'Outlier' limits for individual MUPs were: amplitude 84/1315 muV, duration1.6/13.8 ms, area 46/1222 mu Vms, number of phases 2/6. From 95 muscles 2706 IP samples were obtained. Conclusions: The presented normative data should allow valid quantitative EMG of the EAS muscle in patients. (C) 2000 Elsevier Science ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 19:16:08