title: [Electromyography and functional analytic findings in obstructive disorders of defecation. A contribution to the differentiation of neurogenic and myogenic sphincter damage].
abstract: The aim of this study was to get further information about functional results in patients with outlet obstruction. We investigated 27 patients (age between 42 and 74 years) by electromyography (EMG), manometry and radiology with contrast-solution. The electromyography, a dynamic investigation method, allows the differentiation between neuronal and muscular malfunctions of the voluntary controlled pelvis muscles. Patients with outlet obstruction should be divided into three groups by EMG diagnosis: One group with neuronal alterations, another group with muscular alterations and one group with neuro-muscular alterations. We obtained marked statistical differences between patients with neuronal or muscular malfunctions in the mean amplitude, the turns per second and the integration of the mean amplitude compared to the control group (14 patients). Patients with only neuronal alterations showed furthermore statistically significant distinctions of the action potential duration from control, whereas the data of patients with muscular malfunctions were significantly different from control in the peak amplitude of the action potentials. 77% of all investigated patients were not able to relax the pelvis muscles during defecation.
authors.affiliation: Proktologische Klinik, St. Joseph-Hospital, Duisburg.
authors.forename: S
authors.initials: S
authors.lastname: Athanasiadis
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003248:Constipation / Q000503:physiopathology*; D003672:Defecation / Q000502:physiology; D003937:Diagnosis, Differential; D004576:Electromyography; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000503:physiopathology*; D008297:Male; D008365:Manometry; D008875:Middle Aged; D010525:Peripheral Nerves / Q000503:physiopathology; D012002:Rectal Diseases / Q000503:physiopathology*; D012007:Rectum / Q000294:innervation* / Q000503:physiopathology
vernacular_title: Elektromyographische und funktionsanalytische Befunde bei obstruktiven Defäkationsstörungen. Ein Beitrag zur Differenzierung der neurogenen bzw. myogenen Sphinkterschäden.