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PubMedDate not supplied

The bowel cleansing for colonoscopy. A randomized trial comparing three methods.

INTRODUCTION: Colonoscopy is the procedure of choice for the detection and ablation of small lesions o the colonic mucosa. A proper bowel cleansing is mandatory. So far several regimens have been proposed but rather none has shown a clear-cut advantage over the others. Aim of this study was to compare cleansing ability and patients' compliance of three oral regimens. PATIENTS AND METHODS: Two-hundred and seventy-three patients were block randomised into three groups. Group A (92 patients) received tablets containing senna 12 mg and Magnesium Sulphate 15 mg the day before colonoscopy. Group B (98 patients) received a Polyethylene Glycol-based solution of two litres plus 4 tablets of Bisacodyl the day before the exam. Group C (83 patients) received Sodium Phosphate 40 milliliters the day before and the day of colonoscopy. Results of 265 patients were available for the analysis. Eight patients were excluded because inability to follow prescription. The lower incidence of constipation in group C was not significant. The other parameters were homogeneously distributed in the three groups. RESULTS: The 79 patients of the group C achieved a better bowel cleansing as compared with the 90 of group A (p = 0.0003) and the 96 of group B (p = 0.034). Constipated patients had a significantly better cleansing with Sodium Phosphate preparation compared with senna plus Magnesium Sulphate (p = 0.017), but not significantly better compared with Golytely solution. Compliance and rate of total colonoscopy performed were not statistically different in the three groups. CONCLUSIONS: Sodium Phosphate solution gave better bowel preparation, with the same compliance, than either senna or Polyethylene solution. In constipated patients Sodium Phosphate showed good efficacy resulting in good cleansing rates similar to that of non-constipated patients. The poor results obtained by Polyethylene were related to the little amount of solution taken even if associated to Bisacodyl.

Aged↗
PubMed1990

[Bowel cleansing prior to colonoscopy. A prospective, randomized, blind comparative study].

A randomized, prospective, single blind study was performed in 90 hospital inpatients to compare the effect of three different bowel preparatory regimens prior to total colonoscopy. The extend of bowel cleansing, acceptance by the patients, side effects as well as body weight, blood pressure, pulse rate and various laboratory parameters served as major assessment criteria. Peroral colonic lavage was superior to a senna preparation and a combined laxative agent with regard to the extend of bowel cleansing (p less than 0.001). The study failed to detect significant differences in terms of acceptance by the patients between the three study groups. Minor deviations were found after the combination laxative (slight decrease of serum potassium levels by 0.32 mmol/l), after the senna preparation (minimal decrease of the heart rate), and after peroral lavage (slightly less weight reduction) as compared with the other study groups, respectively. We conclude that peroral lavage is significantly more effective with regard to the extend of bowel cleansing, when compared with two other bowel preparatory regimens, which use a senna preparation or a laxative combination, respectively. Likewise, this study failed to detect significant differences in terms of acceptance by the patients.

Adult↗
PubMed1987

Comparative laxation of psyllium with and without senna in an ambulatory constipated population.

Our short-term study used objective and subjective criteria to evaluate the ability of two laxative preparations to relieve constipation. Forty-two adults who were constipated, i.e., had less than or equal to 3 bowel movements during 1 wk of a single-blind placebo treatment, were randomized to receive psyllium (7.2 g/day) or psyllium plus senna (6.5 + 1.5 g/day). Both laxatives increased defecation frequency and wet and dry stool weights although the added effect of the senna was clearly evident. Only the psyllium with senna increased stool moisture. Two distinct responses to the psyllium plus senna were evident; the subpopulation of high responders (n = 7) was responsible for most of the increase in stool frequency and dry weight in this group, and laxation in the subpopulation of normal responders (n = 12) was similar to that observed in those receiving psyllium alone. Both laxatives provided a similarly high degree of subjective relief and improvement in stool consistency. When constipation was assessed objectively by stool frequency and weight, laxation was attained by 63% of the psyllium plus senna group and 48% of the psyllium group.

Adult↗
PubMed1986

Reproductive toxicological investigations with sennosides.

These trials were carried out to ascertain whether sennosides have any influence on reproduction in rats and rabbits. After intragastric administration there was no evidence of any embryolethal, teratogenic or fetotoxic action. Furthermore, sennosides had no effect on the postnatal development of young animals, on the rearing behaviour of mother animals or on male or female fertility.

Animals↗