Biomedical subjects

T Tetzschner

Publications and source records attributed to T Tetzschner.

21 records · Page 2Linked to original sources

PubMed1992

Dynamic anal manometry: physiological variations and pathophysiological findings in fecal incontinence.

A recently developed technique for dynamic anal manometry was used to study 40 healthy volunteers and 23 patients with fecal incontinence. Seven parameters of anal function were measured. Intraindividual variation of the parameters was studied in 5 females and 5 males. The results of dynamic anal manometry were compared with standard pull-through static anal manometry and correlated well. During opening of the anal sphincter at rest, compliance increased with increasing distension. Males had higher maximal closing pressures during squeeze and lower anal compliance during squeeze than females. There was no sex differences of the sphincter measurements at rest. Age had little effect, and gender had no effect on the measurements. With standard anal manometry, 6 of 23 patients with fecal incontinence both had maximal resting pressure and maximal squeeze pressure within the normal range. When dynamic anal manometry was used, all 23 patients showed one or more abnormal values. The method of dynamic anal manometry provides an opportunity for a more thorough assessment of anal sphincter function than previous manometric methods.

Adult↗

PubMed1991

Relation between electromyography and anal manometry of the external anal sphincter.

Thirteen patients with faecal incontinence and 26 control subjects were studied to investigate whether a quantitative electromyographic (EMG) signal could be correlated to anal manometry. Three different electrodes were used--a concentric needle electrode, a disposable sponge electrode, and a hard anal plug electrode. The maximum amplitude of the EMG recording was used as a quantitative parameter. Linear regression showed significant correlation between EMG and anal manometry with the sponge electrode, both at rest and during squeeze. Significant correlation was also found with the concentric needle electrode during squeeze but not at rest. No correlation was found with the hard anal plug electrode either during squeeze or at rest. Reproducibility studies using the sponge electrode showed acceptable day to day variation. In conclusion, quantitative EMG recordings from a disposable sponge electrode placed in the anal canal correlate well to anal manometry and may be used for assessment of sphincter function, but the hard anal plug electrode cannot be recommended.

Adult↗

PubMed1990

Rectal compliance in the assessment of patients with fecal incontinence.

Rectal compliance (dV/dP) was studied in 31 patients with fecal incontinence, 8 patients with constipation, and 16 control subjects. Patients with fecal incontinence experienced a constant defecation urge at a lower rectal volume and also had a lower maximal tolerable volume and a lower rectal compliance than control subjects (median 126 vs. 155 ml, 170 vs. 220 ml, and 9 vs. 15 ml/mm Hg, respectively; P less than 0.05). Constipated patients had a higher constant defecation urge volume and maximal tolerable volume than controls (median, 266 ml and 300 ml; P less than 0.05). There was no differences in the parameters between patients with idiopathic fecal incontinence and patients with incontinence of traumatic origin, indicating that a poorly compliant rectum in patients with fecal incontinence may be secondary to anal incontinence due to the lack of normal reservoir function.

Adult↗