Details

Autor(en) / Beteiligte

• VAN TETS, W. F
• KUIJPERS, J. H. C
• TRAN, K
• MOLLEN, R
• VAN GOOR, H

Titel

Influence of Parks' anal retractor on anal sphincter pressures

Ist Teil von

• Diseases of the colon & rectum, 1997-09, Vol.40 (9), p.1042-1045

Ort / Verlag

Secaucus, NJ: Springer

Erscheinungsjahr

1997

Quelle

SpringerLINK Contemporary (Konsortium Baden-Württemberg)

Beschreibungen/Notizen

• The effects of the Parks' anal retractor on anal sphincter function were studied in a prospective, randomized trial. A closed hemorrhoidectomy was performed intra-anally in 20 patients using the Parks' anal retractor; in 20 other patients, the procedure was done perineally without the use of a retractor. Anal manometry was performed before and at 6 and 12 weeks after hemorrhoidectomy. Mean squeeze pressure decreased by 4 percent whether or not a retractor was used. Mean resting pressure decreased by 23 percent after use of Parks' anal retractor (P = 0.01) compared with 8 percent when it was not used (P > 0,05). The internal anal sphincter is easily damaged with the use of the Parks' anal retractor. When possible, its use should be avoided to obtain better manometric and functional results.