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Abdominal rectovaginopexy: modified technique to treat constipation.

PURPOSE: We noted the combination of obstructed defecation or constipation and fecal incontinence, the poor results of abdominal rectopexy for constipation, and the well-known risk of postoperative induction of constipation after rectopexy. We developed a new operation to treat patients with constipation or fecal incontinence (with a concomitant rectocele, internal rectal intussusception, enterocele at dynamic defecography, or all three) or both. This new rectopexy technique avoided dorsolateral mobilization of the rectum and did not endanger the hypogastric nerves and pelvic autonomic nerves. A better effect on constipation compared with rectopexies with dorsolateral mobilization was expected. METHODS: The results of this new operation, which was called rectovaginopexy, were studied prospectively in a series of 27 patients. Four-year results were obtained. Preoperative and postoperative questionnaires, dynamic defecograms, and anorectal physiology studies were analyzed. RESULTS: Before the operation 17 patients were constipated, compared with 4 patients one year after rectovaginopexy (76 percent improvement; P = 0.0015) and 5 patients four years after rectovaginopexy (71 percent improvement: P = 0.005), respectively. At one year, fecal incontinence decreased significantly: 15 of 17 patients improved and 9 patients became fully continent (P = 0.0007). Four years after rectovaginopexy the effect on fecal incontinence was no longer significant (P = 0.09). Rectovaginopexy restored anatomy: all (9) enteroceles, all but 1 (17) internal rectal intussusception, and 12 of 20 rectoceles dissolved, and the majority were reduced in size. Rectal sensation for distention was unchanged, and rectal electrosensitivity improved (P = 0.04). CONCLUSIONS: Rectovaginopexy provides significant one-year improvement of both constipation and fecal incontinence. The positive effect on constipation did not deteriorate with time, in contrast to the effect on fecal incontinence.

Adult↗

Investigations for incontinence and constipation after surgery for Hirschsprung's disease in children.

Surgery for Hirschsprung's disease is associated with high rate of morbidity, in the form of either constipation or incontinence or a combination of the two. This study investigates the mechanisms responsible for incontinence and/or constipation following the pull-through operation for Hirschsprung's disease. There were 19 children (15 boys and 4 girls), who at the time of study; 16 had undergone Duhamel, 1 Rehbein, and 2 Soave operation. We classified patients according to their symptoms into 3 groups: Group A was incontinent of faeces; Group B was constipated and incontinent of faeces, and Group C was constipated only. The median age at referral was 6 years, and the median period after operation was 5 years. All patients were investigated by intestinal transit study, endoanal sonography and anorectal manometry. Group A had normal or rapid transit study, as opposed to Groups B and C, who had delayed-transit study. On endoanal sonography, all children had an intact internal and an external anal sphincter, below the level of pull-through operation. The anorectal manometry showed a significantly lower resting anal pressure in the incontinent Group A as compared to the constipated children with or without incontinence in Group B or C (38 mmHg versus 57 or 66 mmHg respectively). The rectal pressure was also significantly higher in children in Group A as compared to those in Group B or C (71 mmHg versus 42 or 36 mmHg). The ratio of rectal/anal pressure was higher in incontinent children in Group A, as compared to constipated children in Group B or C. Therefore, constipation can be caused by high anal resting pressure and a weak rectal peristalsis, while faecal incontinence can be secondary to poor compliance and elevated rectal pressure in the presence of normal or low anal sphincter resting pressure. Aperients are the mainstay of treatment of constipation, however, children with incontinence are more difficult to treat. We did not attempt to define the pattern of nerve plexus because of poor results of revision operation for residual hypoganglionic segment and intestinal neuronal dysplasia. Treatment of these children can become more rational, if furnished with detailed functional studies. We advocate investigation of the anorectal function at an early stage in symptomatic children after surgery for Hirschsprung's disease, and less invasive treatment should be considered before embarking on major surgery.

Child↗

Functional constipation with impaired rectal sensation improved by electrical stimulation therapy: report of a case.

Patients with intractable constipation often complain of social, physical, and psychologic stress. Recently, biofeedback therapy has been widely used for the management of intractable constipation, particularly in cases of constipation associated with pelvic floor dyssynergia. However, some constipated patients often complain of absent or diminished sense of wanting to defecate. It is unclear whether impaired rectal sensation is a cause or outcome of constipation and what specific treatment is available for these patients. We treated a 25-year-old female patient who complained of intractable constipation for ten years. Colon transit time study and defecography showed nonspecific findings. Her anorectal manometric findings were within normal ranges with the exception of impaired rectal sensation. Rectal sensory threshold volumes for desire and urge to defecate and maximal tolerated volume were greatly increased. She was treated by electric stimulation therapy for the purpose of improving impaired rectal sensory function. After 14 sessions of electric stimulation therapy, her constipated symptoms improved dramatically. Furthermore, the desire and urge threshold volumes were remarkably decreased. We report this case of constipation with impaired rectal sensation possibly treated by electric stimulation therapy.

Adult↗

Prolonged ambulatory recording of anorectal motility in patients with slow-transit constipation.

Our aim was to determine phasic contractile activity of the distal bowel and anus in patients with slow-transit constipation; if readily identifiable patterns were present, prolonged recordings could confirm a diagnosis of slow-transit constipation. In 12 healthy control subjects and 11 women patients with slow-transit constipation (mean colonic transit time: 120 +/- 11 hours) and normal pelvic floor function, a flexible catheter was positioned endoscopically with sensors in the sigmoid colon, rectum, and anal canal in order to perform ambulatory recordings. A motility index (MI = mm Hg/h/100) was calculated during fasting and after feeding. Overall, the rectal MI and the frequency of anal canal contractions were less in the patients with constipation compared with those in the control group (rectum: 22 +/- 5 mm Hg/h/100 in the control group versus 13 +/- 10 mm Hg/h/100 in the constipation group; anal contractions/h: 23 +/- 7 in the control group versus 3 +/- 2 in the constipation group, p < 0.05). Moreover, in response to feeding, only control subjects had a significantly increased MI and frequency of anal canal contractions. Compared with control subjects, patients with slow-transit constipation had significantly reduced motor activity in the distal bowel and anal canal. Phasic contractile activity recorded during fasting and in response to a meal may be a means of confirming the diagnosis of slow-transit constipation in patients with borderline marker transit times.

Adult↗

Dermatoglyphic (fingerprint) evidence for a congenital syndrome of early onset constipation and abdominal pain.

Chronic idiopathic constipation and abdominal pain are the most common gastrointestinal symptoms but their cause is rarely determined; therefore, they usually are called functional. To determine if congenital factors play a role in these disorders, we examined dermatoglyphic (fingerprint) patterns, a congenital marker, in 155 consecutive patients with gastrointestinal complaints. Sixty-four percent of patients with constipation and abdominal pain before age 10 yr had one or more digital arches, compared with 10% of patients without constipation and abdominal pain (p less than 0.001). Seventy percent of constipated patients with arches had the onset of symptoms before age 10 yr compared with 23% of constipated patients without arches (p less than 0.001) and 14% of patients with symptoms other than constipation (p less than 0.001). Compared with an age- and sex-matched sample of patients without arches, patients with arches had a higher prevalence of constipation and abdominal pain before age 10 (p = 0.003), were more likely (p less than 0.001) to have chronic intestinal pseudoobstruction (an organic disorder), and were less likely (p = 0.013) to have irritable bowel syndrome (a functional disorder). Identification of a congenital marker, digital arches, associated with early onset constipation and abdominal pain may help to differentiate a congenital organic syndrome from functional disorders such as the irritable bowel syndrome.

Abdomen↗

Chronic functional constipation in adolescents: clinical findings and motility studies.

OBJECTIVE: To evaluate the clinical findings and colonic transit time in adolescents with chronic functional constipation. METHODS: Forty-eight consecutive adolescents with chronic functional constipation referred to the Gastroenterology Service at the Hospital de Clínicas de Porto Alegre, Brazil were studied. Clinical parameters were assessed using a questionnaire. Total and segmental colonic transit time were measured with radiopaque markers. RESULTS: Mean age at first visit was 14 +/- 2 years, and age at onset of constipation was 6 +/- 4 years; 90% of patients depended on laxatives, and 86% on intermittent enemas; 76% had a family history of constipation. There was no statistical difference in the amount of daily fiber ingested by patients and controls. Measurements of colonic transit time revealed that 60% of patients had slow transit constipation, 13% had pelvic floor dysfunction, 10% had slow transit constipation associated with pelvic floor dysfunction, and 17% had a normal colonic transit time. Decreased frequency of evacuation and palpable abdominal fecal mass were significantly associated with slow transit constipation. CONCLUSIONS: Functional constipation in adolescence consists of a heterogeneous group of colonic functional disorders. The identification of these different functional disorders in adolescents will guide specific treatment, which may prevent the progression of this symptom into adult life.

Adolescent↗

The yield of lower endoscopy in patients with constipation: survey of a university hospital, a public county hospital, and a Veterans Administration medical center.

BACKGROUND: The role of endoscopy in the evaluation of constipation is controversial. The aim of this study was to clarify the yield of lower endoscopy in patients with constipation. METHODS: Endoscopic databases from 3 diverse hospitals were searched for procedures with constipation as an indication. Detection of neoplasia was the main outcome of interest. RESULTS: Among 19,764 sigmoidoscopies or colonoscopies, constipation was a procedure indication for 563 patients (mean age 61 [16] years, 52% women); 58% had procedure indications in addition to constipation. Colorectal cancer was diagnosed in 8 (1.4%), adenomas in 82 (14.6%), and advanced lesions (cancer or adenoma with malignancy, high-grade dysplasia, villous features, or size > or = 10 mm) in 24 (4.3%). In the 358 patients who underwent colonoscopy, cancer was detected in 1.7%, adenomas in 19.6%, and advanced lesions in 5.9%. Two patients with cancer were less than 50 years of age. In as many as 6 patients with cancer, the tumor may have caused partial obstruction. CONCLUSIONS: The range of neoplasia in patients with constipation evaluated with lower endoscopy was comparable with what would be expected in asymptomatic subjects undergoing colorectal cancer screening. Although chronic constipation alone may not be an appropriate indication for lower endoscopy, age-appropriate colorectal cancer screening should be pursued when patients with constipation seek medical care.

Adult↗

Management of childhood constipation: parents' experiences.

BACKGROUND: Constipation in childhood is common and places a burden on child health services. Whilst constipation can have a variety of causes, for most children it is usually non-organic and requires limited intervention. It has been suggested that health professionals can resent consultations for such a common problem, believing them to be inappropriate. However, they can underestimate the impact of this condition, leading to adverse clinical effects, as well as parental dissatisfaction. Little research has explored parents' experiences of consulting health professionals about the management of childhood constipation. AIM: To explore parents' experiences of consulting health professionals about management of childhood constipation and to use the findings to inform more effective therapeutic encounters when responding to parental concerns. METHODS: A phenomenological approach was adopted, using in-depth interviews with parents of 14 children receiving health interventions for constipation. FINDINGS: Six themes emerged from analysis including: 'enduring and extreme constipation', which reflected the substantial and sustained impact of the child's constipation; 'dismissed and fobbed off', which captured parents' feelings that their concerns were frequently dismissed by health professionals; 'asserting the need for action', a perception that they had reached a point at which they had to demand some intervention; and 'validation and acknowledgement', which reflected acknowledgment that, finally, their concerns for their child had been taken seriously and acted on. DISCUSSION: The findings indicate a failure by some health professionals to appreciate fully the significance of childhood constipation, thereby appearing to be unconcerned and insensitive to the needs of child and family. The impact of this is a potential loss of trust in health professionals by parents, which can then have implications for how they perceive and access health services for management of this common childhood problem. The findings offer an insight into parental experiences and indicate the need for a more sensitive approach during health consultations.

Adaptation, Psychological↗

Stopping smoking can cause constipation.

SETTING: Constipation is mentioned occasionally as a possible tobacco withdrawal symptom, but no systematic data have been published on this issue. DESIGN: Smokers' clinic patients provided ratings of their level of constipation on three occasions prior to their quit date, and then weekly after they stopped smoking. The total of 1067 participants maintained at least 1 week of continuous abstinence and provided usable data. FINDINGS: The three precessation ratings of constipation were stable. After cessation of smoking, the ratings increased significantly (P < 0.01). In 514 patients who maintained continuous abstinence for 4 weeks and provided complete data, constipation peaked at 2 weeks but remained elevated over the whole period. The net proportion of patients affected was 17%, including 9% who were symptom-free at baseline and became very or extremely constipated. In patients on nicotine replacement the increase in constipation, although significant, was less than in patients on bupropion. CONCLUSIONS: Clinicians treating smokers need to be aware of a possibility that one in six quitters develop constipation, and that for about one in 11 the problem can be severe. Descriptions of tobacco withdrawal syndrome should include constipation.

Bupropion↗

Prevalence of constipation in continuous ambulatory peritoneal dialysis patients and comparison with hemodialysis patients.

Many hemodialysis patients suffer from constipation. The frequency of constipation has not been rigorously evaluated in continuous ambulatory peritoneal dialysis (CAPD) patients, however. We conducted a survey on constipation in CAPD patients and compared the findings with those in hemodialysis patients through a questionnaire. Daily dietary fiber and potassium intake were calculated from the patients' dietary records. In the questionnaire, patients were asked about bowel frequency, stool consistency, straining, and use of laxatives and resins. The frequency of constipation was 28.9% in 204 CAPD patients and 63.1% in 268 hemodialysis patients. The hemodialysis patients had a 3.14 times higher relative risk of constipation than the CAPD patients. Only 3.4% of CAPD patients needed resin to avoid hyperkalemia. Of hemodialysis patients, 49% needed resin. Among the 261 hemodialysis patients, 205 (78.5%) suppressed an urge to defecate during hemodialysis therapy. Potassium and total dietary fiber intake per day were 1.8 +/- 0.5 g and 11.0 +/- 4.0 g in CAPD patients, which were higher (P < 0.01) than the values in hemodialysis patients--1.3 +/- 0.5 g and 5.9 +/- 2.7 g. The results suggest that constipation occurs less frequently in CAPD patients than in hemodialysis patients. The low rate of constipating drug administration, dialysis modality-based lifestyle, and higher total dietary fiber intake may cause the lower prevalence of constipation in CAPD patients.

Adult↗

Rectal wall contractility in healthy subjects and in patients with chronic severe constipation.

OBJECTIVE: The aim of this study was to identify differences in rectal wall contractility between healthy volunteers and patients with chronic severe constipation. SUMMARY BACKGROUND DATA: Whether motor function of the rectum contributes to slow-transit constipation is unknown. Measurements of rectal contractility have been performed traditionally with perfused catheters or microtransducers. The rectal barostat is a new technique that quantifies the volume of air within an infinitely compliant intrarectal bag maintained at constant pressure; decreases in bag volume therefore reflect increases in rectal muscular contractility (tone). Increases in volume reflect decreased contractility. METHODS: Fifteen healthy volunteers (ten women and five men; mean age, 36 years) and eight patients (seven women and one man; mean age, 44 years) were studied. Barostat recordings were made for 1 hour before and after a meal. Randomly, neostigmine (0.5 mg) or glucagon (1 unit) was then given intravenously. After 1 hour, the other medication was given. RESULTS: The fasting rectal volume was similar in the patient and control groups (113 +/- 7 mL vs. 103 +/- 4 mL, respectively; p > 0.05). Compared with controls, constipated patients had a significantly lower reduction in rectal volume after a meal (constipated, 35 +/- 8% vs. controls, 65 +/- 7%; p < 0.05) and after neostigmine administration (constipated, 39 +/- 6% vs. controls, 58 +/- 6%; p < 0.05). Moreover, constipated patients had a smaller increase in rectal volume after glucagon administration than did controls (28 +/- 6% vs. 64 +/- 18%, respectively; p < 0.05. CONCLUSIONS: Changes in rectal wall contractility in response to feeding, a cholinergic agonist, and a smooth muscle relaxant were decreased in constipated patients. These findings suggest that an abnormality of rectal muscular wall contractility is present in constipated patients.

Adult↗

Total and segmental colonic transit time with radio-opaque markers in adolescents with functional constipation.

BACKGROUND: In most instances, constipation is considered idiopathic or functional. The total and segmental colonic transit time, traced by radio- opaque markers, makes possible the identification of the colon segment that has the motility alteration that causes constipation. METHODS: A study was performed of 13 adolescents, aged 12 to 18, with functional chronic constipation and 13 without constipation. In all of them the total and segmental colonic transit times were measured with radio-opaque markers. The adolescents ingested 20 markers each on three successive days, and on the fourth day a plain abdominal radiograph was performed. RESULTS: In the nonconstipated adolescents the total colonic transit time (mean +/- SD) was 30.2 +/- 13.1 hours, in the right colon 5.7 +/- 3.9 hours, in the left colon 7.9 +/- 7.8 hours, and in the rectosigmoid 15.5 +/- 10.6 hours. In the constipated adolescents, the total colonic transit time was 58.3 +/- 17.4 hours, in the right colon 15.9 +/- 12.4 hours, in the left colon 14.7 +/- 13.4 hours, and in the rectosigmoid 17.2 +/- 16.2 hours. There was a statistically significant difference (p < 0.05) in the total colonic transit time, and in both the right and left colon transit times between constipated and nonconstipated adolescents. CONCLUSIONS: The measurement of total and segmental colonic transit times is a simple method that allows one to distinguish constipation due to colonic dysfunction (right colon and left colon) from constipation due to distal obstruction (rectosigmoid).

Adolescent↗

Diet and chronic constipation in children: the role of fiber.

BACKGROUND: Chronic constipation is one of the most common disorders in Western countries and despite numerous clinical, pathophysiologic, and epidemiologic studies its cause is still unclear. Several hypotheses have been proposed and according to experimental studies and clinical observation, fiber intake could play a role in its pathogenesis. The purpose of this case-control study was to examine the possible correlation of idiopathic chronic constipation in children and dietary intake, particularly fiber intake. METHODS: A randomized sample of children (291 children with constipation and 1602 controls) aged 2 to 14 years was taken from three of the 52 counties of Greece. Stratification was performed on the basis of urban, rural, or suburban location and socioeconomic status. The nutritional data were obtained from a 3-day dietary record and a dietary history. Statistical analysis was performed with multivariate tests, multivariate analysis of variance, discriminant analysis, and chi-square analysis according to the characteristics of the correlated variables. RESULTS: Constipated children had a lower caloric and nutrient intake (p < 0.001), lower body weight/height (p < 0.001), and higher prevalence of reported anorexia (p < 0.001). Discriminant analysis indicated that dietary fiber alone was independently negatively correlated with chronic constipation, despite the age and the age of onset of constipation. Relative risk also had a negative correlation with fiber intake (p < 0.001). Of the main fiber fractions only cellulose and pentose were independently correlated with chronic constipation. CONCLUSIONS: Lack of fiber may play an important role in the etiology of chronic idiopathic constipation in children.

Adolescent↗

Measurement of low dietary fiber intake as a risk factor for chronic constipation in children.

BACKGROUND: Scarce information exists regarding dietary fiber intake in children with chronic constipation. The objective of this case-control study was to evaluate the intake of fiber as a risk factor for chronic constipation. METHODS: Fifty-two children with a mean age of 6.8+/-3.2 years who had chronic constipation were age and gender matched with 52 children with normal intestinal habits. The fiber content of the diet was evaluated with a 24-hour dietary recall. Two tables of fiber composition in foods were used: a Brazilian table, and a table based on the method of the Association of Official Agricultural Chemists (AOAC). RESULTS: According to the Brazilian table, the median intake of fiber (in grams per day) by the constipated and the control groups was 13.8 and 17.3, respectively, for total fiber (p = 0.020), 6.8 and 9.7 for insoluble fiber (p = 0.004), and 6.5 and 7.6 for soluble fiber (p = 0.104). According to the AOAC table, the constipation group (9.7 g/day) also had lower (p = 0.0022) intake of total fiber than the control group (12.6 g/day). The coefficient of correlation between the two tables on fiber content of food was +0.82 (p < 0.001) in the constipation group and +0.86 (p < 0.001) in the control group. The intake of fiber was less than the minimum recommendation (age + 5 g) and statistically associated (p = 0.001) with the constipation group (75.0%) in comparison with the controls (42.5%). The odds ratio was 4.1 (95% confidence limits, 1.64-10.32). CONCLUSION: Intake of fiber below the minimum recommendation is a risk factor for chronic constipation in children.

Case-Control Studies↗

Chronic idiopathic constipation: a psychological enquiry.

BACKGROUND: Intractable idiopathic constipation in women is often associated with psychosocial problems. AIMS: To determine the past and current psychological factors associated with slow and normal transit constipation. PATIENTS: Twenty-eight consecutive patients referred for biofeedback treatment were interviewed before the procedure. All were women. Transit studies revealed that 12 had slow transit constipation (STC) and 16 had normal transit constipation (NTC). METHODS: Patients were assessed for evidence of previous and current psychiatric diagnoses using a standardized diagnostic interview schedule. A full family and social history was noted. Self-rating scales were used to measure psychological distress, abnormal attitudes to eating and current psychosocial functioning. RESULTS: The mean age of the 28 patients was 38.2 years (SD = 10.8) with a mean duration of symptoms of 17.5 years (SD = 16.9). Seventeen (61%) had a current psychiatric disorder and 18 (64%) a previous episode of psychiatric illness. The mean age of the 16 NTC patients was 38.4 years (SD = 10.1) with a mean duration of symptoms of 12.4 years (SD = 15.9). By contrast, the 12 STC patients had a much longer mean duration of constipation (24.3 years; SD = 16.4), a mean age of 37.9 years (SD = 12.1), with half having an onset in childhood. The STC patients reported more psychosocial distress on the rating scales than those with NTC, and only one did not experience some form of adverse life event or gynaecological procedure in the 6 months before the onset of constipation. Eleven (39%) of the 28 women had had a hysterectomy at a mean age of 36 years, but only four (14%) reported a history of sexual abuse. Of the nine (32%) patients who reported markedly distorted attitudes to food, six had NTC and three had STC. CONCLUSIONS: Of consecutive patients undergoing psychological assessment for intractable constipation, three fifths had evidence of current, and two thirds a previous, affective disorder. One third reported distorted attitudes to food. Although STC is a chronic disorder accompanied by high rates of psychological distress, it does not appear to be associated with gross functional impairment. We suggest that patients who present to surgical departments with chronic intractable constipation should routinely have a psychological assessment.

Adult↗

Risk factors for chronic constipation based on a general practice sample.

OBJECTIVES: Many factors have been associated with the occurrence of constipation, particularly poor diet and lack of exercise. However, the importance of medications and general medical illnesses in constipation remains more uncertain. We aimed to identify risk factors for constipation from among patient clinical, therapeutic, and demographic characteristics. METHODS: The sample was composed of patients explicitly diagnosed with chronic constipation (n = 7251), those diagnosed with constipation of unspecified chronicity (n = 6441), and a sample of controls (n = 7103). All were drawn from a general practice research database representing more than 10 yr of data collection. RESULTS: A large number of clinical and therapeutic factors were independently associated with chronic constipation over and above age and gender. Primary neurological diseases were strongly associated with constipation but accounted for few cases. Opioids (OR = 1.6, population attributable risk [PAR] = 2.6%), diuretics (OR = 1.7, PAR = 5.6%), antidepressants (OR = 1.9, PAR = 8.2%), antihistamines (OR = 1.8, PAR = 9.2%), antispasmodics (OR = 3.3, PAR = 11.6%), anticonvulsants (OR = 2.8, PAR = 2.5%) and aluminum antacids (OR = 1.7, PAR = 3.0%) were associated with the highest risk among medications. CONCLUSIONS: Constipation is common in primary care, and multiple medications seem to be an important contributing factor. Concurrent diseases are also associated but at most are only contributing to a minority of cases.

Adolescent↗

Anorectal manometry in irritable bowel syndrome: differences between diarrhoea and constipation predominant subjects.

Anorectal manometry with balloon distension was performed on 28 patients with diarrhoea predominant irritable bowel syndrome, 27 patients with constipation predominant irritable bowel syndrome and 30 normal controls. In the diarrhoea predominant group balloon volumes required to perceive the sensations of gas, stool, urgency of defecation and discomfort were significantly lower than in controls or constipation predominant patients (p less than 0.001). Diarrhoea predominant patients also had a significantly lower rectal compliance than controls or constipation predominant patients (p less than 0.03) but showed no difference in motor activity induced by distension. When the constipation predominant patients were compared with controls the only significant difference that emerged was in the volume at which discomfort was perceived. No significant differences between constipated subjects and controls were found in the distension induced motor activity. Symptom severity and psychological parameters were also recorded and the diarrhoea predominant patients were found to be more anxious than those with constipation (p = 0.04). It proved possible (by comparison with the control group) to identify three abnormal rectal subtypes in patients with irritable bowel syndrome. These were a sensitive rectum (low sensation thresholds, normal or low rectal pressure), a stiff rectum (normal or low sensation thresholds, high pressure) and an insensitive rectum (high sensation thresholds, normal or high pressure) and their distribution varied considerably depending on bowel habit. Some form of rectal abnormality was identified in 75% of diarrhoea predominant patients compared with 30% of constipation predominant subjects (p = 0.002). A sensitive rectum was a particular feature of diarrhoea predominant patients being observed in 57% of patients compared with only 7% of the constipated group (p less than 0.001).

Adolescent↗

Probiotic beverage containing Lactobacillus casei Shirota improves gastrointestinal symptoms in patients with chronic constipation.

BACKGROUND: The aim of the present study was to investigate the effect of a probiotic beverage on gastrointestinal symptoms in patients with chronic constipation. METHODS: A double-blind, placebo-controlled, randomized study was conducted over a four-week period in patients with symptoms of chronic constipation (n=70). To all patients, 65 mL/day of a probiotic beverage containing Lactobacillus casei Shirota (LcS) or a sensorially identical placebo was administered. Patients completed a questionnaire on gastrointestinal symptoms, well-being and stool habits and underwent a medical examination weekly. Severity of constipation, flatulence and bloating was summarized into four categories (severe, moderately severe, mild and no symptoms). RESULTS: The consumption of LcS resulted in a significant improvement in self-reported severity of constipation and stool consistency, starting in the second week of the intervention phase (P<0.0001). Severe and moderately severe constipation was observed less in the LcS group. The occurrence and degree of flatulence or bloating sensation did not change. In the final examination, 89% of the LcS group and 56% of the placebo group showed a positive effect of their beverage on constipation (P=0.003). No adverse reactions were reported. CONCLUSIONS: The results indicate a beneficial effect on gastrointestinal symptoms of patients with chronic constipation. The administration of probiotic foodstuffs may be recommended as an adjunctive therapy of chronic constipation.

Adult↗