Prospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jul 14, 2015; 21(26): 8178-8183
Published online Jul 14, 2015. doi: 10.3748/wjg.v21.i26.8178
Table 1 Outcome measures for short-term efficacy and safety
Outcome measurePPH group (n = 54)Control group (n = 54)χ2or t valueP value
Operative time, min24.36 ± 5.1644.27 ± 6.5717.514< 0.001
Postoperative hospital stay, d2.1 ± 1.43.6 ± 2.34.0940.001
Urinary retention, n (%)26 (48.15)20 (37.04)1.3630.243
Perianal edema, n (%)12 (11.11)23 (42.60)5.1150.024
Postoperative VAS score
At 24 h2.9 ± 0.98.3 ± 1.127.923< 0.001
At first defecation2.0 ± 0.56.5±0.835.055< 0.001
At one week1.7 ± 0.55.0 ± 0.728.205< 0.001
Table 2 Outcome measures for long-term efficacy and safety n (%)
Outcome measurePPH groupControl groupχ2valueP value
(n = 54)(n = 54)
Anal stenosis1 (1.85)3 (5.56)0.260.610
Anal tenesmus15 (27.78)13 (24.07)0.1930.661
Sensory anal incontinence2 (3.70)7 (12.96)3.9510.041
Recurrence6 (11.11)9 (16.67)0.6970.404
Difficulty in defecation7 (12.96)13 (24.07)2.2090.137