1.10. Analysis.
Comparison 1 DRUG VERSUS PLACEBO, Outcome 10 Maximum resting anal pressure (mmHg).
| Maximum resting anal pressure (mmHg) | ||
|---|---|---|
| Study | Drug | Placebo |
| Loperamide versus placebo | ||
| Hallgren 1994 # | N 28 mean 62 (SD 16) | versus N 28 mean 55 (SD 9) |
| Sun 1997 # | N 11 mean 76 (SD 40) (loperamide oxide ) | N 11 mean 69 (SD 35) |
| Diphenoxylate + atropine versus placebo | ||
| Harford 1980 # | N 15 mean 41 (SD 23) | N 15 mean 39 (SD 19) |
| Phenylephrine gel versus placebo | ||
| Carapeti 2000a # | N 18 mean 65 (SD 21) | N 18 mean 54 (SD 21) |
| Carapeti 2000b # | N 12 mean 89 (SD 17) | N 12 mean 75 (SD 14) |
| Cheetham 2001 # | Statistically significant differences between phenylephrine gel (in concentrations of 30% and 40% only) | compared with placebo (P < 0.05) |
| Sodium valproate versus placebo | ||
| Kusunoki 1990 # | N 17 mean 63.6 (SD 12.4) | N 17 mean 42.5 (SD 8.9) |