PTQ Implants in the treatment of faecal soiling.
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Adult↗
Biomedical subjects
C G Baeten
Publications and source records attributed to C G Baeten.
Long-term outcome following mucosal advancement flap for high perianal fistulas and fistulotomy for low perianal fistulas: recurrent perianal fistulas: failure of treatment or recurrent patient disease?
BACKGROUND: In this study, we determined the long-term outcome of perianal fistulas treated with mucosal advancement flap (MF) or fistulotomy (FT). METHODS: One hundred three patients with perianal fistulas were treated by MF for high fistulas or FT for low fistulas and were retrospectively assessed by case-note review and examined at the out-patient clinic. The localization and time of recurrence of the fistula were recorded. RESULTS: Forty-one patients [median follow-up of 72 months (range 48-99)] were treated by an MF, and 62 patients [median follow up of 75 months (range 48-99)] were treated by FT. After 12, 48, and 72 months, the fistula had recurred in 9 (22%), 26 (63%), and 26 (63%) patients of the MF group and in 4 (7%), 16 (26%), and 24 (39%) patients of the FT group, respectively. Eighteen (69%) of the recurrences in the MF group and ten (33%) of the FT group occurred within 24 months after surgery (p=0.01). Four (15%) of the recurrences in the MF group and 13 (54%) of the recurrences in the FT group were present in a different localization (p=0.007). CONCLUSION: The success rate of both FT and MF techniques decreases with time. Recurrence appears to be caused by failure of treatment and by recurrent patient disease.
Adult↗
Staged mucosal advancement flap for the treatment of complex anal fistulas: pretreatment with noncutting Setons and in case of recurrent multiple abscesses a diverting stoma.
OBJECTIVE: To assess the efficacy of a staged strategy for the treatment of complex perianal fistula. METHODS: Between January 1999 and April 2003 all consecutive patients with complex perianal fistulas were treated according to a staged strategy. Fistula tracks originating from the middle third or upper part of the anal sphincter were included. Patients were examined for recurrent fistulas and complaints of incontinence and soiling. Initial treatment consisted of a noncutting seton with or without a diverting stoma. Definitive surgical treatment consisted of an advancement flap or fistulotomy. RESULTS: Thirty patients were included (median age; 42 years, range 22-68 years). Seven had Crohn's disease without signs of rectal and anal involvement other than the fistula. At a median follow up of 22 months (range 8-52 months) in 29 (97%) patients, the wounds had healed completely; 7 (22%) patients subsequently developed a recurrent fistula and minor soiling occurred in 7 (23%) patients. CONCLUSION: Initial treatment with a seton with and without a diverting stoma minimizing inflammatory activity at the fistula site before definitive surgical treatment gave good results in this difficult group of patients.
Adult↗
Accuracy of magnetic resonance imaging in prediction of tumour-free resection margin in rectal cancer surgery.
BACKGROUND: Incomplete surgical removal of the circumferential tumour spread is believed to be the main cause of local recurrence after resection of rectal cancer. This study assessed the accuracy of magnetic resonance imaging (MRI) with a phased-array coil for preoperative staging and prediction of the distance of the tumour from the circumferential resection margin in a total mesorectal excision. METHODS: 76 patients with primary rectal cancer were preoperatively assessed by MRI at 1.5 T, with a phased-array coil. Two observers independently scored, on two occasions, the tumour stage and measured the distance to the mesorectal fascia. Their findings were compared with the final histological findings. FINDINGS: The MRI tumour stage agreed with the histological stage in 63 (83%) of 76 patients (weighted kappa=0.77 [95% CI 0.66-0.89]) for observer 1, and in 51 (67%) patients (weighted kappa=0.52 [0.37-0.67]) for observer 2. The intraobserver agreement on the tumour stage was good (kappa=0.80 [0.69-0.91]) for observer 1 but moderate (kappa=0.49 [0.34-0.65]) for observer 2. The interobserver agreement was moderate (kappa=0.53 [0.38-0.69]). In 12 patients with an obvious T4 tumour, a margin of 0 mm was correctly predicted. Of 29 patients for whom the pathologist reported a distance of at least 10 mm without specifying the actual distance, a distance of at least 10 mm was predicted in 28 by observer 1 and 27 by observer 2. For the remaining 35 patients, a regression curve was constructed; from this, a histological distance of at least 1.0 mm can be predicted with high confidence when the measured distance on MRI is at least 5.0 mm. INTERPRETATION: MRI with a phased-array coil showed moderate accuracy and reproducibility for predicting the tumour stage of rectal cancers. The clinically more important circumferential resection margin can, however, be predicted with high accuracy and consistency, allowing preoperative identification of patients at risk of recurrence who will benefit from preoperative radiotherapy, more extensive surgery, or both.
Adult↗
Dynamic graciloplasty for fecal incontinence.
Fecal incontinence is a socially incapacitating condition with associated high treatment costs. The most common cause of fecal incontinence is trauma during childbirth followed by surgical interventions. After unsuccessful conventional treatment, muscle transposition is the next treatment option. Two local muscles are used for this purpose: the gluteus and the gracilis muscles. With both muscles, long-term muscle contractions are difficult to maintain due to muscle fatigue. The gracilis muscle, however, is technically much easier to transfer and most activities of daily living and even sports are still possible. Experimental studies have shown that electrical stimulation of skeletal muscles can transform fatigue-prone muscles into fatigue-resistant muscles. In 1986, we started to perform graciloplasty procedures with intramuscular electrodes connected to an electrical stimulator. To date, 200 patients have been treated in our institution using dynamic graciloplasty. All patients had severe incontinence without control of liquid or solid feces, most of them had previously received unsuccessful treatment using other techniques. The mean age was 48 years, the average time that patients had been incontinent was 12.4 years, and the cause of incontinence were trauma (n = 99), congenital (n = 28), pudendopathy (n = 58), and low motor neurological lesions (n = 15). Of these patients, 76% were considered to have successful outcomes. Patients whose cause of incontinence was trauma or pudendopathy tended to respond better to this treatment than patients with anal atresia.
Adolescent↗
Comparison of epineural or intramuscular nerve electrodes for stimulated graciloplasty.
OBJECTIVE: Two different techniques have been developed to stimulate the gracilis muscle when it is used in anal neosphincter reconstruction. These are direct neural stimulation and intramuscular electrode stimulation. The aim of this study was to compare these techniques. METHODS: Comparison was made of gracilis anal neosphincter reconstruction using neural stimulation (Royal London Hospital in the United Kingdom) with the intramuscular muscular method (University Hospital Maastricht in the Netherlands). The United Kingdom data were obtained from a retrospective database, whereas the Netherlands data were gathered prospectively. RESULTS: A successful outcome was achieved in 46 of 81 patients (57 percent) in London and 148 of 200 cases (74 percent) in the Maastricht study (chi-squared = 7.2; P < 0.01). There was no significant difference between the two techniques in voltage required for stimulation of the neosphincter muscle during a ten-year period. Reoperative surgery for electrode failure or dislocation was required in 21 (26 percent) patients in the London study, whereas only four (2.7 percent) of the Maastricht cases required such procedures (chi-squared = 37.8; P < 0.05). The high electrode plate failure rate in the London study was related to the source of manufacture. CONCLUSIONS: Both neural and intramuscular nerve techniques provide effective long-term stimulation of the gracilis anal neosphincter.
Adolescent↗
Cecal access for antegrade colon enemas in medically refractory slow-transit constipation: a prospective study.
PURPOSE: The current surgical treatment for therapy-resistant slow-transit constipation consists of either subtotal colectomy or ileostomy. This prospective study was performed to examine the creation of an access enabling antegrade enemas of the colon as an alternative to these interventions. Development of symptoms associated with constipation was also a study subject. METHODS: Twelve patients with a median defecation frequency of once a week were evaluated preoperatively, using marker-transit studies, defecography, manometry, and colonoscopy. All patients subsequently received an enema access, placed in the lower right abdomen. The appendix (available in seven cases) was laparoscopically fixed to the abdominal wall and served as a stoma, a procedure that required a conversion in one case. In five previously appendectomized cases, the terminal part of the ileum was transected, the distal side fixed to the abdominal wall to serve as a stoma, and the proximal side anastomosed to the ascending colon. Quality-of-life-assessment was included. This consisted of Nottingham Health Profile, State Trait Anxiety Inventory, and Zung tests, as well as disease specific questions. Besides perioperative and out-patient evaluations, patients were asked about and scored on constipation associated symptoms. RESULTS: Twelve patients (8 female) with a mean age of 43 (17-66) years were treated. Using various enema regimes, frequency of defecation (median one daily) without major complications was established. In four cases, a subtotal colectomy was required in the long run. Two of these four patients needed an ileostomy after for persisting symptoms. State Trait Anxiety Inventory and Zung results improved, as did several associated symptoms. Overall, constipation scores dropped from a median of 21.5 to 5.5. CONCLUSION: Cecal access for antegrade colon enemas in medical therapy-resistant slow-transit constipation is a minimally invasive procedure with promising results. In case of failure, further surgery is not compromised by this procedure.
Adolescent↗
Complications of dynamic graciloplasty: incidence, management, and impact on outcome.
PURPOSE: Dynamic graciloplasty can improve continence in patients with severe refractory fecal incontinence, but associated morbidity is high. The purpose of this study was to identify complications associated with dynamic graciloplasty and to characterize their treatment and impact on patient outcome. METHODS: In 121 patients enrolled in a prospective trial of 20 centers and eligible for safety analysis, all complications of dynamic graciloplasty were recorded at the time of their occurrence and followed up until resolution. Severe treatment-related complications were defined as those requiring hospitalization or surgical intervention. RESULTS: In 93 patients, 211 complications occurred. Of these, 89 (42 percent) in 61 patients were classified as severe treatment-related complications and resulted from the following: major infection, 19; minor infection, 10; thromboembolic events, 3; device performance and use, 13; pain, 16; noninfectious gracilis problems, 8; noninfectious wound-healing problems, 3; other surgery-related complications, 3. In addition, severe treatment-related complications resulted from constipation in ten and stoma creation or closure in ten. The recovery rate (full or partial) was 87 percent overall, and for severe treatment-related complications, was 92 percent. Of the types of complications, only major infections had an adverse effect on outcome. CONCLUSION: Severe complications occur frequently after dynamic graciloplasty, but are usually treatable. They often require one or more reoperations and can lead to significant delays in completion of therapy. In most cases therapy can be salvaged.
Anal Canal↗
One-step vs two-step procedure in dynamic graciloplasty.
OBJECTIVE: Dynamic graciloplasty, a proven treatment for end-stage faecal incontinence, requires transposition of the gracilis muscle around the anal canal and implantation of a pulse generator and intramuscular electrodes. In view of the risk of infection around the implanted material the implantation was initially not performed in combination with the perineal procedure but 6 weeks later. Sparing the patients an extra operation, however, might be justified if morbidity is not increased. This study aimed to compare the combined single-stage with the two-stage procedures. PATIENTS AND METHODS: Two groups of 13 patients were admitted to this prospective, matched control study according to waiting list ranking. They were matched for age, gender and aetiology. Group I had transposition and transplantation combined, group II underwent these procedures separately with a 6-week interval. Continence, manometry, stimulation parameters, quality of life results and adverse events were recorded. RESULTS: After a mean 521-day follow up infection rates were comparable in both groups, as were continence rates, morbidity, anal manometry, stimulation parameters and quality of life. CONCLUSION: Outcome, morbidity and quality of life seem to be comparable. A single procedure avoids the need for an extra admission and operation, so the one-stage approach should be the standard procedure in dynamic graciloplasty.
Clinical Trial↗
Audit of anal-sphincter repair.
OBJECTIVE: Structural damage of the anterior part of the anal sphincter is a major cause of faecal incontinence. Sphincter repair is the standard surgical treatment. This study was designed to analyse the results of anal sphincter repair, to identify possible predictors of outcome and to investigate the presence of bowel symptoms other than leakage at follow up. PATIENTS AND METHODS: Fifty-five women (median age 39 years, range 24-73 years) who underwent anal sphincter repair between 1986 and 1997 at the University Hospital of Linköping answered a postal questionnaire. Current bowel function, degree of continence and the patients' functional result as worse, unchanged, some improvement, good or excellent were assessed. Good or excellent function was regarded as a successful result, the rest as failure. Age, duration of symptoms, type of surgery, morbidity and length of follow up were analysed in relation to outcome. Results of pre- and post-operative anal manometry, endoanal ultrasound, anal sphincter electromyography and pudendal nerve function were also analysed. RESULTS: After a median (range) follow-up period of 40 months (5-137) months, 31 (56%) patients rated the result as either excellent (n=10) or good (n=21). Twenty-one (38%) patients rated the result as some improvement (n=14), unchanged (n=6) or worse (n=1). In three (5%) patients a colostomy was fashioned because of failure. Patients >50 years at surgery (n=18) had a worse outcome (P=0.001). Successful outcome was correlated to increased squeeze pressures post-operatively. The presence of post-operative urgency (P=0.01) and loose stools (P=0.02) was more common in patients with poor outcome. Eight patients became continent to formed and liquid stool.
Journal Article↗
Preoperative MR imaging of anal fistulas: Does it really help the surgeon?
PURPOSE: To evaluate the accuracy of magnetic resonance (MR) imaging with a quadrature phased-array coil for the detection of anal fistulas and to evaluate the additional clinical value of preoperative MR imaging, as compared with surgery alone. MATERIALS AND METHODS: Fifty-six patients with anal fistulas underwent high-spatial-resolution MR imaging. Twenty-four had a primary fistula; 17, a recurrent fistula; and 15, a fistula associated with Crohn disease. MR imaging findings were withheld from the surgeon until surgery ended and verified, and surgery continued when required. RESULTS: MR imaging provided important additional information in 12 (21%) of 56 patients. In patients with Crohn disease, the benefit was 40% (six of 15); in patients with recurrent fistulas, 24% (four of 17); and in patients with primary fistulas, 8% (two of 24). The difference between patients with or without Crohn disease and between patients with a simple fistula versus the rest was significant (P <.05). The sensitivity and specificity for detecting fistula tracks were 100% and 86%, respectively; abscesses, 96% and 97%, respectively; horseshoe fistulas, 100% and 100%, respectively; and internal openings, 96% and 90%, respectively. CONCLUSION: High-spatial-resolution MR imaging is accurate for detecting anal fistulas. It provides important additional information in patients with Crohn disease-related and recurrent anal fistulas and is recommended in their preoperative work-up.
Adolescent↗
Measurement of anal sphincter muscles: endoanal US, endoanal MR imaging, or phased-array MR imaging? A study with healthy volunteers.
PURPOSE: To compare endoanal ultrasonography (US), endoanal magnetic resonance (MR) imaging, and phased-array MR imaging for anal sphincter muscle measurement. MATERIALS AND METHODS: Sixty healthy volunteers underwent 1.5-T phased-array MR, endoanal MR, and endoanal US examinations. Sphincter muscle thicknesses were measured. Measurement reliability was analyzed, and correlations among the imaging methods were calculated. Multivariate analysis was performed to assess the influence of age, weight, height, sex, parity, and obstetric trauma on sphincter dimensions. RESULTS: Both MR methods had good reliability for measurements of all sphincter components, whereas endoanal US was reliable for internal sphincter measurement only. There was little correlation between the techniques, except between the two MR techniques, with a strong correlation for total sphincter and perineal body thickness. The internal sphincter thickened significantly (P =.002) with age at endoanal US and endoanal MR imaging but not at phased-array MR imaging. There were small sex-based differences in sphincter muscle measurements at phased-array MR imaging only. CONCLUSION: Endoanal US enables reliable measurement of only internal sphincter thickness, whereas both MR imaging methods enable reliable measurement of all sphincter components. Sphincter measurement with phased-array MR imaging is as reliable as that with endoanal MR imaging.
Adult↗
Standards for anal sphincter replacement.
PURPOSE: Anal sphincter replacement offers a new treatment option for patients with severe refractory fecal incontinence or for those who require abdominoperineal resection for localized malignancy. The purpose of this study was to review the current status of anal sphincter replacement, formulate a consensus statement regarding its current use, and outline suggestions for future development. METHODS: Four areas of interests were selected: indications for sphincter replacement, continence scoring and quality of life, choice of therapy, and dissemination of new technology. A questionnaire regarding these issues was developed and circulated to working party members; its results served as the basis for this consensus document. RESULTS: Both electrically stimulated skeletal muscle neosphincter and artificial anal sphincter are options for patients with end-stage fecal incontinence. Electrically stimulated skeletal muscle neosphincter is also appropriate for reconstruction after surgical excision of the anorectum in selected cases. Avoidance of complications requires strict attention to sterile technique, prophylactic antibiotics, and deep venous thrombus prophylaxis. A standardized scoring system is proposed that evaluates both continence and evacuation. Quality of life is a critical endpoint for assessing sphincter replacement, and use of The American Society of Colon and Rectal Surgeons incontinence-specific quality-of-life instrument is recommended. As the efficacy of sphincter replacement becomes proven, dissemination of the technique should occur in a controlled manner to ensure adequate surgeon training, minimization of complications, and optimization of results. CONCLUSIONS: Sphincter replacement by electrically stimulated skeletal muscle neosphincter and artificial anal sphincter provide a continent option for patients with end-stage fecal incontinence and those requiring abdominoperineal resection. The guidelines offered in this document are intended to facilitate the controlled and safe development and acceptance of these new techniques.
Anal Canal↗
Hemorrhoidectomy vs. Lord's method: 17-year follow-up of a prospective, randomized trial.
PURPOSE: A prospective, randomized trial was performed between 1979 and 1981 comparing anal dilation and hemorrhoidectomy for hemorrhoidal disease at the Maastricht University Hospital. The aim of this study was to update that trial to assess long-term outcome and complications such as fecal incontinence. METHODS: A total of 138 patients with second-degree and third-degree hemorrhoids entered the study. Median follow-up was 17 (range, 8.4-18.3) years and was achieved for 118 (86 percent) patients. Group A (n = 35) underwent hemorrhoidectomy and Group B (n = 39) was treated with anal dilation and aftertreatment (original Lord's procedure), whereas Group C (n = 44) had dilation only. Fourteen of these patients died. RESULTS: Recurrent hemorrhoids were noted for 26 percent of the patients treated with hemorrhoidectomy, for 46 percent with operative dilation with the postoperative dilation program, and for 39 percent with operative dilation without the postoperative program. The percentage of repeated treatment for the three subgroups was 11, 23, and 18 percent, respectively. The continence status remained more or less the same during the first year. However, 17 years later the anal stretch procedures caused various incontinence disorders in 52 percent of these patients. Significance was found for incontinence of flatus (from 11 to 30 patients; P = 0.04) in the anal dilation groups. CONCLUSIONS: Hemorrhoidectomy can be considered to be a safe procedure for treatment of hemorrhoidal disease, with excellent long-term results. Anal dilation is associated with a high percentage of complaints of fecal incontinence. The procedure should be abandoned.
Adult↗
Safety and efficacy of dynamic graciloplasty for fecal incontinence: report of a prospective, multicenter trial. Dynamic Graciloplasty Therapy Study Group.
PURPOSE: Dynamic graciloplasty has been used for intractable fecal incontinence, and good results have been reported. The aim of this study was to assess prospectively the safety and efficacy of dynamic graciloplasty for intractable fecal incontinence in a prospective, multicenter trial. METHODS: A total of 123 adults were treated with dynamic graciloplasty at 20 institutions. Continence was assessed preoperatively and postoperatively by use of 14-day diaries. RESULTS: There was one treatment-related death. One hundred eighty-nine adverse events occurred in 91 patients (74 percent). Forty-nine patients (40 percent) required one or more operations to treat complications. One hundred seventy (90 percent) events were resolved. Sixty-three percent of patients without pre-existing stomas recorded a 50 percent or greater decrease in incontinent events 12 months after dynamic graciloplasty, and an additional 11 percent experienced lesser degrees of improvement. Twenty-six percent were not improved, worsened, or exited. In patients with pre-existing stomas, 33 percent achieved successful outcomes at 12 months. This number increased to 60 percent at 18 months. Seventy-eight percent of patients had increased enema retention time, and mean anal canal pressures improved significantly at 12 months. Significant changes in quality of life were also observed. CONCLUSIONS: Objective improvement can be demonstrated in the majority of patients with end-stage fecal incontinence treated with dynamic graciloplasty. Reduction in incontinence episodes can be correlated with improved quality of life. Adverse events are frequently encountered, but most resolve with treatment.
Adolescent↗
[Rubberband ligation of hemorrhoids: symptoms almost gone after 6 weeks, but many patients need retreatment in the long run].
OBJECTIVE: To assess the short and middle-long term results of outpatient treatment of internal haemorrhoids by rubber band ligation. DESIGN: Prospective. METHODS: The results and the complications of rubber band ligation were assessed in a group of consecutive patients treated for internal haemorrhoids by one surgeon in March 1995-September 1997 in the Laurentius Hospital Roermond, the Netherlands. Middle-long term results were assessed by an independent examiner who questioned the patients by phone. RESULTS: Ninety-four patients were treated: 43 women and 51 men, with a mean age of 51 years (range: 23-80). After 6-18 weeks 80 out of 90 accessible patients (89%) were symptom-free, 71 (79%) of them after one treatment. Serious complications were not reported. However, the days after treatment mild complaints of anal urgency and pain were present in 16 patients (20%). Twenty-three patients underwent sigmoidoscopy. In 10 patients (43%) adenomatous polyps (in 9 patients) or diverticulosis (in 1 patient) were found. After a mean of 18 months (range: 6-31) 32 patients (41%) (still) had anal complaints compatible with haemorrhoids. CONCLUSION: Rubber band ligation is an easy and safe outpatient treatment of internal haemorrhoids. Most patients become symptom-free, often after one treatment. However, about 40% of the patients have recurrent symptoms within a few years after initial treatment.
Adult↗
Secondary coloperineal pull-through and double dynamic graciloplasty after Miles resection--feasible, but with a high morbidity.
PURPOSE: Until recently, patients who underwent abdominoperineal resections had to cope with a colostomy for the rest of their lives. For some of these patients this colostomy was a terrible burden, physically and mentally. Publications about abdominoperineal pull-through and double dynamic graciloplasty immediately after a Miles resection showed good results. The purpose of this study was to investigate the procedure as a secondary approach after abdominoperineal resections. METHODS: In this study seven patients were evaluated. All had had an abdominoperineal resection and proved to have unbearable problems with their stoma. All had a secondary pull-through and double dynamic graciloplasty, a mean of 8.5 (range, 1.1-34.8) years after the Miles resection. RESULTS: In five patients continence was regained; two were reversed to colostomy because of several complications. Patients who had a successful outcome also suffered from numerous complications, with a total mean hospital stay of 73.8 (range, 27-167) days, a mean of 3.1 (range, 1-6) additional operations, and 1.8 (range, 0-4) readmissions. CONCLUSION: Secondary anorectal reconstruction after abdominoperineal resection is a feasible option, but with a high morbidity. Because of this the procedure was stopped at the beginning of 1997.
Colon↗
Open or laparoscopic preperitoneal mesh repair for recurrent inguinal hernia? A randomized controlled trial.
BACKGROUND: Giant prosthetic reinforcement of the visceral sac (GPRVS), an open preperitoneal mesh repair, is a very effective groin hernia repair. Laparoscopic transabdominal preperitoneal repair (TAPP), based on the same principle, is expected to combine low recurrence rates with minimal postoperation morbidity. METHODS: Seventy-nine patients with 93 recurrent and 15 concomitant primary inguinal hernias were randomized between GPRVS (37 patients) and TAPP (42 patients). Operating time, complications, pain, analgesia use, disability period, and recurrences were recorded. RESULTS: Mean operating time was 56 min with GPRVS versus 79 min with TAPP (p < 0. 001). Most complications were minor, except for a pulmonary embolus and an ileus, both after GPRVS. Patients experienced less pain after a laparoscopic repair. Average disability period was 23 days with GPRVS versus 13 days with TAPP (p = 0.03) for work, and 29 versus 21 days, respectively (p = 0.07) for physical activities. Recurrence rates at a mean follow-up of 34 months were 1 in 52 (1.9%) for GPRVS versus 7 in 56 (12.5%) for TAPP (p = 0.04). Hospital costs in U.S. dollars were comparable, with GPRVS at $1,150 and TAPP at $1,179. CONCLUSIONS: Laparoscopic repair of recurrent inguinal hernia has a lower morbidity than GPRVS. However, laparoscopic repair is a difficult operation, and the potential technical failure rate is higher. With regard to recurrence rates, the open preperitoneal prosthetic mesh repair remains the best repair.
Adult↗