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Biomedical subjects

R J Felt-Bersma

Publications and source records attributed to R J Felt-Bersma.

At least 19 recordsLinked to original sources

[Colonic lavage prior to colonoscopy: comparable outcomes of two polyethylene-glycol preparations and a sodium-phosphate solution].

OBJECTIVE: Comparison of three cleansing solutions for bowel preparation prior to colonoscopy. DESIGN: Prospective, randomized. METHOD: 140 outpatients referred for colonoscopy were randomized into three groups for cleansing with 4 litres PEG 4000, 4 litres PEG 3350 or with 90 ml sodium phosphate with an additional 2.5 litres of fluid. Between cleansing and colonoscopy, patients filled in a questionnaire concerning taste, abdominal cramps and tolerance to the procedure. Blinded to the type of cleansing the endoscopist scored the effects on the colon and rectosigmoid, and made the endoscopic diagnosis. RESULTS: All data were available for 127 of the 140 patients (50 men, 77 women), mean age 51 years (range 18-96). Comparison between the three groups showed no statistically significant difference in the opinion of the patients concerning taste, abdominal cramps and tolerance of lavage. The endoscopist's scoring of total colon cleansing showed a small reduction in colon cleanliness when using sodium phosphate compared to PEG 3350 (p = 0.03). No differences were found between the two PEG solutions. Combining both PEG solutions and comparing them with the sodium-phosphate solution showed fewer abdominal cramps (p = 0.07) with sodium phosphate and a cleaner colon with PEG (p = 0.07). Women complained slightly more of abdominal cramps and were slightly less tolerant of the procedure than men. Previous colonic surgery did not influence the results. Patients with diverticula were older, but no other effect of cleansing was found. CONCLUSION: The three preparations are comparable in their cleansing effect and tolerance by the patient.

Adolescent↗

[Fecal incontinence: various causes and treatments].

Three patients, two women aged 73 and 54 years and one man aged 46 years, had faecal incontinence for several years. All three patients had sphincter defects; two were managed conservatively and one was treated surgically with acceptable results. Of the many possible causes of faecal incontinence, a disturbed defecation pattern and obstetric trauma are most frequently encountered. After medical history and physical examination, anal endosonography is important in demonstrating or excluding an anal sphincter defect. Conservative treatment by means of a fibre-enriched diet, laxatives, pelvic floor exercises or daily enemas may provide a socially acceptable balance for the patient. When conservative management fails and a sphincter defect is present, sphincteroplasty is indicated.

Aged↗

Assessment and classification of fistula-in-ano in patients with Crohn's disease by hydrogen peroxide enhanced transanal ultrasound.

Crohn's disease is well known for its perianal complications, among which fistulas-in-ano are the most common abnormalities. Fistulas-in-ano in Crohn's disease tend to be complex and have a high recurrence rate. Therefore the role of surgery is generally more conservative. Hydrogen peroxide enhanced transanal ultrasound has proven superior to physical examination, fistulography, computed tomography, and conventional ultrasound in demonstrating the fistula tract. This study examined the fistula tracks in patients with Crohn's disease. Forty-one patients with Crohn's disease and fistula-in-ano were investigated using physical examination, sondage of the fistula, proctoscopy and transanal ultrasound. Hydrogen peroxide was infused via a small catheter into the fistula. The main track and the ramification of the fistula were classified according to the anatomical Parks' classification. Only 9 (22%) patients had a single inter- or transsphincteric fistula. In 5 (12%) patients a single supra- or extrasphincteric fistula (high fistula) was found, in 14 (34%) more than one fistula track (ramified), and in 13 (32%) an anovaginal fistula. Thus 78% of patients had a surgically difficult to treat fistula. In the ramified fistula the main track follows the Parks' classification, but ramifications can have a bizarre pattern which is not in agreement with this classification. Optimal documentation by means of hydrogen peroxide enhanced transanal ultrasound is therefore mandatory before surgery or before other therapies such as anti-tumor necrosis factor treatment.

Adult↗

Rectal prolapse, rectal intussusception, rectocele, and solitary rectal ulcer syndrome.

Rectal prolapse can be diagnosed easily by having the patient strain as if to defecate. A laparoscopic rectopexy should be recommended. Intussusception is more an epiphenomenon than a cause of defecatory disorder and should be managed conservatively. Solitary rectal ulcer syndrome is a consequence of chronic straining, and therapy should include restoring a normal defecation habit. Rectocele should be left alone; an operation may be considered if it is larger than 3 cm and is causing profound symptoms despite maximizing medical therapy for the associated defecation disorder.

Female↗

Assessment and classification of never operated and recurrent cryptoglandular fistulas-in-ano using hydrogen peroxide enhanced transanal ultrasound.

OBJECTIVE: Classification and visualization of fistula-in ano is used to determine surgical treatment according to the type of fistula, predict the recurrence rate and incontinence risk and compare the results of treatment published in literature. Hydrogen peroxide enhanced transanal ultrasound (HPUS) with the peroxide introduced through the external opening of the fistula gives a clear and accurate visualization of the track in relation to the sphincters. The aim of this study was to review never operated and recurrent cryptoglandular fistulas-in-ano visualized with the aid of HPUS in order to establish the anatomical differences. PATIENTS AND METHODS: Eighty-one patients with never operated (48) or recurrent (33) cryptoglandular fistulas-in-ano were assessed by clinical examination and HPUS. RESULTS: Never operated fistulas were single track, trans- or inter-sphincteric fistulas in 80%. In 15%, the tracks were sinus with no connection to the pectinate line. Two patients (5%) had a transsphincteric fistula with a ramification. No supra- or extra-sphincteric fistulas were found in the never operated fistula group. In the recurrent fistula patients, 57% had a single trans or intersphincteric track, 15% of the patients had a single track supra or extrasphincteric fistula and 27% had a ramified fistula. CONCLUSIONS: All never operated cryptoglandulair fistulas-in-ano were inter- or trans-sphincteric. An extra track was found in 5%. Recurrent fistulas-in-ano were supra or extrasphincteric in 15% and ramified in 27%. Therefore, never operated fistula-in-ano does not require any special investigation before surgical treatment. However, before treating recurrent fistulas, visualization by HPUS is recommended to detect supra or extrasphincteric fistulas or ramification.

Journal Article↗

Rectal compliance as a routine measurement: extreme volumes have direct clinical impact and normal volumes exclude rectum as a problem.

PURPOSE: The clinical impact of rectal compliance and sensitivity measurement is not clear. The aim of this study was to measure the rectal compliance in different patient groups compared with controls and to establish the clinical effect of rectal compliance. METHODS: Anorectal function tests were performed in 974 consecutive patients (284 men). Normal values were obtained from 24 controls. Rectal compliance measurement was performed by filling a latex rectal balloon with water at a rate of 60 ml per minute. Volume and intraballoon pressure were measured. Volume and pressure at three sensitivity thresholds were recorded for analysis: first sensation, urge, and maximal toleration. At maximal toleration, the rectal compliance (volume/pressure) was calculated. Proctoscopy, anal manometry, anal mucosal sensitivity, and anal endosonography were also performed as part of our anorectal function tests. RESULTS: No effect of age or gender was observed in either controls or patients. Patients with fecal incontinence had a higher volume at first sensation and a higher pressure at maximal toleration (P = 0.03), the presence of a sphincter defect or low or normal anal pressures made no difference. Patients with constipation had a larger volume at first sensation and urge (P < 0.0001 and P < 0.01). Patients with a rectocele had a larger volume at first sensation (P = 0.004). Patients with rectal prolapse did not differ from controls; after rectopexy, rectal compliance decreased (P < 0.0003). Patients with inflammatory bowel disease had a lower rectal compliance, most pronounced in active proctitis (P = 0.003). Patients with ileoanal pouches also had a lower compliance (P < 0.0001). In the 17 patients where a maximal toleration volume < 60 ml was found, 11 had complaints of fecal incontinence, and 6 had a stoma. In 31 patients a maximal toleration volume between 60 and 100 ml was found; 12 patients had complaints of fecal incontinence, and 6 had a stoma. Proctitis or pouchitis was the main cause for a small compliance. All 29 patients who had a maximal toleration volume > 500 ml had complaints of constipation. No correlation between rectal and anal mucosal sensitivity was found. CONCLUSION: Rectal compliance measurement with a latex balloon is easily feasible. In this series of 974 patients, some patient groups showed an abnormal rectal visceral sensitivity and compliance, but there was an overlap with controls. Rectal compliance measurement gave a good clinical impression about the contribution of the rectum to the anorectal problem. Patients with proctitis and pouchitis had the smallest rectal compliance. A maximal toleration volume < 60 ml always led to fecal incontinence, and stomas should be considered for such patients. A maximal toleration volume > 500 ml was only seen in constipated patients, and therapy should be given to prevent further damage to the pelvic floor. Values close to or within the normal range rule out the rectum as an important factor in the anorectal problem of the patient.

Adolescent↗

Rectal visceral sensitivity in healthy volunteers: influences of gender, age and methods.

The barostat is a device that maintains a constant pressure within an air-filled polyethylene bag by means of a feedback mechanism. The system measures variations in rectal tone by recording changes in the intrarectal pressure and volume. Different procedures, such as ramp distension or intermittent distension, are used to test visceral sensitivity and rectal wall compliance. It is not quite clear which method is preferable and how the barostat measurements compare with those of the conventional latex balloon. In 28 healthy volunteers (11 males, mean age 36, range 22-67 years) rectal distension was performed in two ways: 1 Pressure-controlled distension, by both intermittent and ramp methods, with measurement on the Visual Analogue Scale (VAS, 0-5) at 8, 12, 16, 20, 24, 28, 32 and 36 mmHg. Hysteresis (comparing area under the curve during deflation and inflation with ramp pressure distension) and compliance were calculated. 2 Volume-controlled distension, with registration of first sensation, urge to defecate and maximal tolerated distension. This procedure was compared to conventional water-filled latex balloon distension. No differences were found between intermittent and ramp distension comparing VAS scores at the same pressures. Gender or age did not affect the VAS score. Males had larger volumes at the same pressures than females. Females had larger hysteresis than males. Older females had larger hysteresis than younger females. The pressure volume curves were S-shaped. Compliance at maximal tolerated distension (V/p) and maximal dynamic compliance (Delta V/Delta p) was higher in males than females. The polyethylene bag had higher MTV and MTP compared to the latex balloon. In conclusion, no differences were found in volumes, compliance or VAS between the intermittent and the ramp pressure-controlled inflation, indicating potential for simplification of the procedure. Males had larger rectal volumes and compliances; females had more pronounced hysteresis. A systemic difference was found between distension with the water-filled latex balloon and with the air-filled polyethylene bag. This should be taken into account when interpreting results.

Adolescent↗

A randomized controlled trial of rubber band ligation versus infra-red coagulation in the treatment of internal haemorrhoids.

OBJECTIVE: Despite the presence of numerous non-surgical therapies for the treatment of haemorrhoids, none of these therapies has clearly been proven to be superior. The effectiveness and patient tolerance of rubber band ligation (RBL) and infra-red coagulation (IRC) in the treatment of haemorrhoids was assessed. DESIGN: Prospective randomized trial. SETTING: Academic hospital (tertiary care). PARTICIPANTS: A total of 133 consecutive patients (73 males, 60 females, mean age 48 years (range 19-82)) with internal haemorrhoids, and without concomitant anorectal disease, were randomized to rubber band ligation (RBL, n = 65) or infra-red coagulation (IRC, n = 68). INTERVENTIONS: Rubber band ligation or infra-red coagulation was performed in one or more sessions with four-week intervals until symptoms had resolved. Treatment outcome and side-effects were assessed after each treatment session and one month after the last treatment by proctological examination and a questionnaire, including a pain score (visual analogue scale from 0 to 10). Recurrence of complaints was assessed by telephone questionnaire [mean follow-up of 19.2 months (SD 7.8)]. RESULTS: Treatment outcome was assessed in 124 patients (60 RBL, 64 IRC). The mean number of treatment sessions was 1.6 (SD 0.9) for both therapies. For RBL, 58 patients (97%), and for IRC, 59 patients (92%) were symptom-free or had satisfactorily improved. Only third-degree haemorrhoids seemed to respond better to RBL (five of five patients symptom-free) than to IRC (two of four patients symptom-free). Pain following treatment was more common and more severe after RBL (VAS 5.5 +/- 3.7) than after IRC (VAS 3.3 +/- 3.3, P= 0.018). The telephone questionnaire was answered by 105 patients. Nine of 50 patients (18%) treated with RBL and 11 of 55 patients (20%, P= 0.81) treated with IRC had experienced symptomatic relapse to pre-treatment levels. CONCLUSIONS: Infra-red coagulation and rubber band ligation are equally effective in the treatment of haemorrhoids. The rate and severity of pain is higher after rubber band ligation. Infra-red coagulation should be the first-line treatment for haemorrhoids.

Adult↗

Effect of prucalopride, a new enterokinetic agent, on gastrointestinal transit and anorectal function in healthy volunteers.

BACKGROUND: Prucalopride (PR) is a novel 5-HT4 agonist enterokinetic compound. AIM: To evaluate its effect on bowel function, gut transit and anorectal function in healthy volunteers using a double-blind, placebo-controlled crossover study. METHODS: Twenty-four healthy volunteers (12 men, 12 women, mean age 25 years, range 20-53 years) were randomly assigned to 1 mg/placebo or 2 mg/placebo (PL). The trial consisted of five consecutive 1 week periods: no drug treatment, PR treatment or PL, washout, PL or PR, no treatment. Subjects maintained a diary of bowel function during the entire study period. Total intestinal transit time (TITT), mean colonic transit time (MCTT) and anorectal function (anal manometry, rectal sensitivity and rectal compliance) were assessed at the end of both treatment periods. Electrocardiography and blood sampling were performed for safety analysis; blood sampling was also used to check compliance. RESULTS: No subjects withdrew from the study. Treatment with PR 2 mg showed a statistically significant increase in mean number of weekly stools (11.5 vs. 7.1 compared to PL, P = 0.04) and in the percentage of loose/watery stools (48 vs. 12% compared to PL, P = 0.005). Within 1 week, stool frequency and consistency returned to baseline values when treatment was stopped. MCTT was shortened significantly with both doses, i.e. from 35 h on PL to 25 h on PR 1 mg (P = 0.01) and from 43 h on PL to 22 h on PR 2 mg (P = 0.02). Anorectal function was unaffected by PR. Transient and moderate headache occurred in nine subjects during PR treatment and in six subjects during PL treatment. CONCLUSION: Prucalopride is well tolerated by healthy subjects and has a marked and consistent effect on stool frequency and consistency, and on colonic transit. In the present study prucalopride did not affect visceral sensitivity or sphincter function. It holds promise for patients with slow transit constipation.

Adult↗

Endosonography in benign anorectal disease: an overview.

BACKGROUND: Endosonography may be used for diagnosing various anorectal disorders. This review addresses its technique and clinical use in benign anorectal disease. METHODS: The English literature available on anal endosonography was reviewed. The different modalities, the endosonography technique itself and its value in benign anorectal disease were described. RESULTS: Anal endosonography is easy to perform, has a short learning curve and causes less discomfort than routine digital examination. Anal sphincters can be clearly visualized and distinction is possible between the internal (hypoechoic) and external (hyperechoic) anal sphincters. Other pelvic floor structures, like the puborectalis muscle, can also be visualized. Endosonography is mostly used in the assessment of faecal incontinence; it has brought new insight into the pathophysiological mechanisms of this disorder and can select patients with traumatic incontinence for sphincter repair. It has replaced electromyographical sphincter mapping, which is a painful and time-consuming procedure. In perianal sepsis, endosonography assists in defining fistula tract anatomy. The use of contrast agents has significantly increased the accuracy of endosonography in the assessment of perianal fistulae. In addition, endosonography is an excellent alternative to expensive MRI. Besides its use in incontinence and perianal sepsis, with anal endosonography surgical possibilities can be evaluated in individual patients, for example, to decide whether a sphincter repair or a lateral sphincterectomy is preferable. Finally, endosonography may occasionally identify internal sphincter myopathy in patients with intractable constipation or proctalgia. CONCLUSION: Anal endosonography images the internal and external sphincters with high accuracy. It is easy to perform and is especially valuable in the diagnosis of anal incontinence and perianal sepsis.

Anus Diseases↗

Referral for anorectal function evaluation: therapeutic implications and reassurance.

AIM: To determine the impact of anorectal function evaluation (AFE) on patients and referring specialists. PATIENTS AND METHODS: In one year, 135 patients were referred for AFE, which consisted of proctoscopy, anal manometry, rectal compliance, anal sensitivity measurement and anal endosonography. Questionnaires were sent to the patients and referring specialists. RESULTS: In 70% of the 135 patients there was total agreement about the referring and final diagnosis. The response rate of the patients was 78% (n = 100) and that of the specialists was 91% (n = 117). The experience with regard to pain and embarrassment during AFE was good. Of the women, 13% preferred a female investigator. Fifty-nine patients answered that they had received one or more treatments after referral: surgery (n = 32), medication (n = 16), diet (n = 5), physiotherapy (n = 1) or a combination of the above (n = 5). Of the 41 patients who did not receive another treatment, 29 were reassured and 12 did not experience any benefit from the visit, thus bringing the total benefit of the referral to 88%. The anorectal complaints before AFE and at follow-up improved significantly in the treated group (P < 0.0001). The advice given was followed by the referring specialist in 98 cases (84%). The quality of the advice given was considered good in 98 (84%). The opportunity of referral for AFE was considered useful in 108 cases (93%). In 71 patients, information from both the specialist and the patient was obtained. Three patients had therapies that were not advised and 19 patients did not follow the advice (mainly dietary). In the 135 patients, AFE changed the management in 34 patients (25%). In the other 101 patients, endosonography was of value in determining the size of sphincter defects or the fistula tracks. CONCLUSION: AFE was well tolerated and changed the management in 25% of patients. Additional advice and reassurance were given in many patients; only 12% of patients claimed to have no benefit from the referral. Anal endosonography seems the most valuable test.

Adolescent↗

Hydrogen peroxide-enhanced transanal ultrasound in the assessment of fistula-in-ano.

UNLABELLED: Appropriate classification of the fistulous tracts in patients with fistula-in-ano may be of value for the planning of proper surgery. Conventional transanal ultrasound has limited value in the visualization of fistulous tracts and their internal openings. Hydrogen peroxide can be used as a contrast medium for ultrasound to improve visualization of fistulas. PURPOSE: This prospective study evaluates hydrogen peroxide-enhanced ultrasound in comparison with physical examination, standard ultrasound, and surgery in the assessment of fistula-in-ano. METHODS: Twenty-one consecutive patients (4 women; mean age, 42 years) with fistula-in-ano were evaluated by local physical examination (inspection, probing, and digital examination), conventional ultrasound, and hydrogen peroxide-enhanced ultrasound before surgery. Ultrasound was performed using a B&K Diagnostic Ultrasound System with a 7-MHz rotating endoprobe. Hydrogen peroxide (3%) was infused via a small catheter into the fistula. The results of physical examination, ultrasound, and hydrogen peroxide-enhanced ultrasound were compared with surgical data as the criterion standard. The additive value of standard ultrasound and hydrogen peroxide-enhanced ultrasound compared with physical examination was also determined. RESULTS: At surgery, 8 intersphincteric and 11 transsphincteric fistulas and 2 sinus tracts (without an internal opening) were found. During physical examination, probing was incomplete in 13 patients, the diagnosis being correct in the other 8 patients (38%) as a low (intersphincteric or transsphincteric) fistula. With conventional ultrasound, the assessment of fistula-in-ano was correct in 13 patients (62%); defects in one or both sphincters could also be found (n = 8). With hydrogen peroxide-enhanced ultrasound, the fistulous tract was classified correctly in 20 patients, the overall concordance with surgery being 95%. The internal opening was found at physical examination in 15 patients (71%), with hydrogen peroxide-enhanced ultrasound in 10 patients (48%), and during surgery in 19 patients (90%). Secondary extensions, confirmed during surgery, were found in five cases. In two patients, a secondary extension with hydrogen peroxide-enhanced ultrasound was not confirmed during surgery. Both patients developed a recurrent fistula. CONCLUSION: Hydrogen peroxide-enhanced ultrasound is superior to physical examination and standard ultrasound in delineating the anatomic course of perianal fistulas. It makes accurate preoperative assessment of the fistula possible and may be of value for the surgeon in planning therapeutic strategy.

Adult↗

HLA-DRB1*03, but not the TNFA -308 promoter gene polymorphism, confers protection against fistulising Crohn's disease.

Crohn's disease (CD) appears in forms so diverse that it has been hypothesized CD might be a syndrome, with different pathogenic mechanisms leading to the various clinical phenotypes. This may plausibly explain the conflicting and inconclusive results with regard to HLA associations in unselected groups of patients. The power of these association studies may increase when disease heterogeneity is taken into account. As fistulising CD has been proposed as a separate subgroup of patients with CD, we studied the carrier frequencies (CF) of the DRB1 alleles in 35 unrelated Caucasian Dutch CD patients with proven peri-anal fistulas. A striking decrease in the frequency of the DRB1(*)03 allele was found in those patients with peri-anal fistulas when compared with a panel of 2400 healthy controls (HC) (3% vs 25%; P = 0.005; Odds Ratio [OR] = 0.09). The DRB1(*)03 allele is in strong linkage disequilibrium with a polymorphism at position -308 in the promoter region of the gene encoding TNFalpha (TNFA-308(*)2). We investigated whether this allele frequency was decreased as well. Surprisingly, the CF of TNFA-308(*)2 was 29%, not different from the CF of 98 HC (34%; P = 0. 7; OR = 0.8). This study is the first showing a significant negative association between DRB1(*)03 and a particular subgroup of CD patients. Thus, patient selection may largely determine the outcome of genetic association studies in CD, as we previously observed no association with this allele in an unselected population of CD patients. As DRB1(*)03 frequency, but not the closely linked TNFA-308(*)2, was decreased, this suggests recombination between the DRB1 and TNFA loci in this group of patients, and may help to define the biological basis of fistula formation.

Alleles↗

Vaginal endosonography of the anal sphincter complex is important in the assessment of faecal incontinence and perianal sepsis.

BACKGROUND: Anal endosonography is an established technique in the evaluation of anorectal disease. However, it is sometimes difficult to visualize the anterior part of the sphincter complex and anal endosonography may be impossible when anal pain or stenosis is present. The aim of this study was to evaluate vaginal endosonography in the diagnosis of faecal incontinence and perianal sepsis. METHODS: Anal and vaginal endosonography were performed in 56 women with faecal incontinence (n = 36) or perianal sepsis (n = 20). The technique and pelvic floor anatomy were described, anal sphincter measurements with anal and vaginal endosonography were compared, and the additive value of vaginal over anal endosonography in the diagnosis of faecal incontinence and perianal sepsis was assessed. RESULTS: The pelvic floor was clearly imaged with vaginal endosonography. However, after a relatively short learning curve it was still not possible to image the anal sphincters in three of 28 patients. Except for external anal sphincter thickness, which was significantly lower, all anal canal structure measurements were greater with vaginal than with anal endosonography. Concerning the diagnosis of either faecal incontinence or perianal sepsis, vaginal endosonography added important information in comparison with anal endosonography in 14 (25 per cent) of 56 patients. CONCLUSION: Vaginal endosonography provides reliable images of the anal sphincters in an undistorted fashion, thereby increasing the diagnostic yield of faecal incontinence and perianal sepsis in 25 per cent of patients. Therefore, endosonographists should become acquainted with this technique.

Abscess↗

Third-degree obstetric perineal tear: long-term clinical and functional results after primary repair.

BACKGROUND: This study was designed to investigate the long-term clinical and anorectal functional results after primary repair of a third-degree obstetrical perineal rupture. METHODS: One hundred and fifty-six consecutive women who had a primary repair of a third-degree perineal rupture were sent a questionnaire and asked to undergo anorectal function testing (anal manometry, anorectal sensitivity, anal endosonography and pudendal nerve terminal motor latency (PNTML)) RESULTS: Some 117 women (75 per cent) responded. Anal incontinence was present in 47 women (40 per cent); however, in most cases only mild symptoms were present. In 40 women additional anorectal function tests were performed and compared with findings in normal controls. Mean(s.d.) maximum squeeze pressure (31(15) versus 63(17) mmHg, P< 0.001) was decreased and first sensation to filling of the rectum (88(47) versus 66(33) ml, P=0.03) and anal mucosal electrosensitivity (4.7(1.7) versus 2.5(0.8) mA, P=0.003) were increased compared with values in normal controls. In 35 women (88 per cent) a sphincter defect was found with anal endosonography. Factors related to anal incontinence were the presence of a combined anal sphincter defect (relative risk (RR) 1.7 (95 per cent confidence interval (c.i.) 1.1-2.8)) or subsequent vaginal delivery (RR 1.6 (95 per cent c.i. 1.1-2.5)). CONCLUSION: Anal incontinence prevails in 40 per cent of women 5 years after primary repair of a third-degree perineal rupture. The presence of a combined sphincter defect or subsequent vaginal delivery increase the risk of anal incontinence.

Anal Canal↗

Transgastric endoluminal laparoscopic resection of a duodenal polyp.

Transgastric endoluminal surgery is a laparoscopic procedure used to treat gastric lesions such as polyps and carcinoma in situ. This approach can also be used to treat proximal duodenal problems such as bleeding and polyps. Our case was a young patient with bleeding from a benign duodenal polyp, localized 3 cm from the papilla of Vater. Two trocars were introduced by laparoscopy into the stomach. Guided by the flexible gastroscope, the polyp (a 6-cm Brunner's benign hamartoma) was resected by means of the endostaplers. Transgastric endoluminal surgery can be used to extirpate benign lesions in the proximal duodenum. The use of a flexible gastroscope can be very useful because of its adaptability to the anatomy.

Adult↗

[Transverse presentation due to coprostasis].

A multiparous woman was admitted at 32 weeks to evaluate the reason for a persistency in transverse lie. Ultrasound examination at 25 and 32 weeks revealed a circular echogenic structure near the cervix. It was considered to be a fibroid. At rectovaginal examination a compact faecal mass was identified. The woman never had complained of abnormal bowel function: however, daily diarrhoea had occurred since 3 months gestational age. Several times it was necessary to apply oil rectally for softening, enabling digital faecal extraction; phosphate enemas and warm water enemas led to considerable faeces production. Near term a healthy daughter was delivered vaginally. Chronic constipation was diagnosed, worsened by pregnancy and an inadequate diet.

Adult↗

Anal sensitivity test: what does it measure and do we need it? Cause or derivative of anorectal complaints.

PURPOSE: This study was undertaken to determine the anal sensitivity in controls and in different patient groups and to establish factors that determine anal sensitivity. METHODS: Anorectal function tests were performed in 387 patients with different anorectal diseases. Anal sensitivity was measured in 36 controls. Anal sensitivity was measured by means of mucosal electrosensitivity (MES) using a catheter with two electrodes placed in the anal canal. A constant current (square wave stimuli 100 microsec, pulses per second) was increased stepwise from 1 to 20 mAmp until the threshold sensation was reached. Other tests used were anal manometry (maximum basal pressure, maximum squeeze pressure, rectal compliance (maximum rectal volume and pressure), endosonography (submucosal thickness), defects and thickness of internal and external sphincter), electromyography (maximum contraction pattern, Grade 1 (solitary contractions) to Grade 4 (interference pattern)), and pudendal nerve terminal motor latency. Multiple regression analysis was performed. It was postulated that age, local conditions (anal scars, anal fissures, hemorrhoids, mucosal prolapse, proctitis, sphincter thickness and defects, and submucosal thickness), and neurologic factors could influence anal sensitivity. RESULTS: Controls had an MES of 3.4 +/- 1.7. MES was significantly increased compared with controls in patients with fecal incontinence, soiling, hemorrhoids, mucosal prolapse, constipation, anal scars, anal surgery, and sphincter defects; patients with fecal incontinence had the highest MES (6.7 +/- 4.3; P < 0.0001). Patients with anal fissures and proctitis showed no differences compared with controls. MES correlated significantly with age (R = 0.29), maximum basal pressure (R = -0.29), maximum squeeze pressure (R = -0.32), submucosal thickness (R = 0.19), maximum contraction pattern (R = -0.39), single-fiber electromyography (R = 0.39), and maximum rectal volume and pressure (0.14). Multiple regression analysis showed that age, internal sphincter defects, and submucosal thickness significantly influenced anal sensitivity, but explained only 10 percent of the variance. CONCLUSION: Anal sensitivity is diminished in all patients with anorectal diseases except for anal fissures and proctitis. There are correlations with other anorectal function tests. Anal sensitivity is determined for 10 percent by age, internal sphincter defects, and thickness of the submucosa. Anal sensitivity measurement, therefore, has limited clinical value and should be used in conjunction with other tests in a research setting.

Age Factors↗