Clark E S, Semrad S D, Bichsel P, Oliver J E
Am J Vet Res. 1987 Apr;48(4):552-5.
Cystometrography and urethral pressure evaluations were performed in 7 horse mares and 5 pony mares before and after sedation with xylazine. Before sedation, mean (+/- SD) maximal bladder contraction pressure was 91.4 +/- 16.5 cm of H2O in horses and was 86.0 +/- 14.4 cm of H2O in ponies, and maximal urethral closure pressure was 49.1 +/- 19.4 cm of H2O in horses and 37.7 +/- 14.4 cm of H2O in ponies. A significant difference was not found between values of nonsedated vs sedated animals. Only values for threshold volume were significantly different (P less than 0.05) between nonsedated horses (1,982 +/- 1,241 ml) and ponies (825 +/- 412 ml).
在7匹母马和5匹母矮种马中，于用赛拉嗪镇静前后进行了膀胱压力描记法和尿道压力评估。在镇静前，马的平均（±标准差）最大膀胱收缩压为91.4±16.5厘米水柱，矮种马为86.0±14.4厘米水柱；马的最大尿道闭合压为49.1±19.4厘米水柱，矮种马为37.7±14.4厘米水柱。未镇静动物与镇静动物的值之间未发现显著差异。仅非镇静马（1982±1241毫升）和矮种马（825±412毫升）之间的阈值体积值有显著差异（P小于0.05）。
