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PubMed1987

Definitive management of rectal cancer by contact (endocavitary) irradiation.

In a retrospective review, 62 patients treated for rectal cancer by contact (endocavitary) irradiation at The Cleveland Clinic Foundation were analyzed. This treatment modality delivers high dose, low penetration irradiation to a rectal cancer by direct contact of a 50 KV x-ray source through a special proctoscope. Cancers selected for this treatment include small (3 cm or less), mobile tumors without presacral lymphadenopathy that are within reach of digital examination and are well- or moderately well-differentiated adenocarcinomas. Between 1973 and 1984, 62 patients (37 males, 25 females) were treated--46 by contact irradiation alone and 16 by contact irradiation after excisional biopsy. The median tumor dose was 12,000 rads administered in four fractions at monthly intervals. Mean follow-up was 31 months. Fifty-six patients (90 percent) were disease-free at the time of review or death (ten died from unrelated causes). Eleven patients (18 percent) developed local recurrence but eight of these without distant metastases were rendered disease-free by other treatment--six by surgical resection and two by further radiotherapy. Mean time since secondary treatment is 20 months. Three patients are alive with incurable disease and three have died from cancer--in three of these six patients there was no evidence of local disease. Ulcerated tumors developed local recurrence in five of 17 cases (29 percent) while polypoid tumors recurred locally in six cases (14 percent). Morbidity from the treatment was minor in nature. It is suggested that contact (endocavitary) irradiation is effective treatment for carefully selected cases of rectal cancer.

Adenocarcinoma↗
PubMedDate not supplied

Colonoscopy in the diagnosis of unexplained rectal bleeding.

Colonoscopy, done to elucidate the cause of obscure rectal bleeding not diagnosable on the basis of previous proctoscopic and barium-enema examinations, resulted in a 17 per cent diagnostic yield in this series. Eighteen of 105 patients were found to have lesions: three had carcinomas, six had polyps, eight had colitis, and one had proctitis. When bleeding had been demonstrated by the physician, there was a higher diagnostic yield (22.5 per cent) than when bleeding was reported only by the patient (5.9 per cent). Descriptions of the bleeding by the patients were found to be somewhat unreliable. Sixteen of the 18 lesions revealed by the colonoscope were in the left colon. It is suggested that the basic work-up for undiagnosed rectal bleeding should include history, physical examination, sigmoidoscopy, and barium-enema study. When no diagnosis is found, subsequent work-up must be individualized. When bleeding has been demonstrated to originate from the colon, colonoscopic examination should be performed.

Adolescent↗
PubMed1979

Late development of colorectal cancer subsequent to pelvic irradiation.

Two cases of irradiation-associated carcinoma of the colon are reported and the literature reviewed. The clinical courses and operative difficulties in treating these patients are emphasized. The necessity for life-long follow-up examinations with proctoscopic and barium-enema evaluations in high-risk patients is stressed. Irradiation-associated carcinoma of the colon occurs almost exclusively in women, but should be investigated in patients of either sex who live for long periods after pelvic irradiation.

Adenocarcinoma↗
PubMed1996

n-3 fatty acids decrease colonic epithelial cell proliferation in high-risk bowel mucosa.

The n-3 fatty acids (C20:5, eicosapentaenoic acid; c22:6, docosahexaenoic acid) may be important in the development, growth, and metastasis of colon cancer, a leading cause of death in North America. Patients who have had a bowel neoplasm have a high risk of developing a second neoplasm, and this risk is associated with a high percentage of cells correspond to the S phase of bromodeoxyuridine (BrdUrd) labeling in mucosal epithelial cells. To determine the effect of n-3 fatty acid supplementation on DNA synthesis of rectal mucosa, patients with stage 1 or stage 2 colon carcinoma or adenomatous polyps were randomized to consume either 9 g/d n-3 fatty acid capsules or 9 g/d placebo capsules. Plasma phospholipid fatty acid analysis and proctoscopic mucosal biopsies were performed at baseline, 3, and 6 mon. Colonic crypts were isolated from the mucosa, disassociated with enzymes, and incubated with BrdUrd, and %S phase was measured by flow cytometry. The plasma phospholipid n-6/n-3 ratio was determined by gas chromatography. Supplement compliance was assessed by plasma phospholipid n-6/n-3 ratio. Mean capsule consumption in these two group was 82%. Prior to supplementation, there were no significant differences in the %S phase and the plasma n-6/n-3 ratio between these groups. Patients whose colonic epithelial cells indicated hyperproliferation at baseline showed a strongly positive correlation to the %S phase of BrdUrd uptake and the n-6/n-3 ratio. There was no significant change after n-3 treatment in patients with low baseline. Those in the placebo group showed no significant difference in n-6/n-3 ratio, although there was an increase in the %S phase of BrdUrd uptake at 6 mon. The n-3 group did not have significant side effects, and polyps were not found after completing 12 mon of n-3 fatty acid supplementation. This study suggests that n-3 fatty acid may be a useful chemopreventive agent in some patients as reflected in a plasma biomarker of colon tumor growth and metastasis. A low plasma phospholipid n-6/n-3 fatty acid ratio may serve as a nutritional marker that is associated with colonic epithelial cell hyperproliferation in the n-3-supplemented group as compared with the placebo group. Characteristics of mucosal proliferation at baseline may be a crucial factor for the effect of n-3 fatty acid supplementation.

Cell Division↗
PubMed1981

Solitary ulcer of the rectum: report of a case and review of the literature.

A 13-year-old girl with Prader-Willi syndrome was admitted to our hospital with an 18-month history of anal bleeding and mucus discharge on defecation. Physical examination revealed obesity, hypogonadism, hypotonia and hypomentia. On digital examination, a nodular mass was palpated on the right wall of the ampulla recti, which was suspected to be carcinoma on a barium enema study. Proctoscopic examination revealed a large, irregular ulceration with white slough at the base, surrounded by the nodular and lumpy mucosa. The lesion was excised by the abdomino-anal pull-through method. The resected specimen showed a lesion of large, shallow, irregular ulcer, 5.0 x 2.2 cm in size. Microscopic examination revealed obliterated lamina propria by fibroblasts and muscle fibers derived from the muscularis mucosae, and misplaced cystic dilated glands in the submucosa at the margin of the ulcer. The gross and microscopic appearances are identical to those of "solitary ulcer of the rectum" described by Madigan and others, and similar to those of "colitis cystica profunda" described by Goodall and others. According to these findings, this lesion was diagnosed as solitary ulcer of the rectum. In the present report, the relationship between solitary ulcer of the rectum and colitis cystica profunda was discussed.

Adolescent↗
PubMed2001

Stapled mucosal prolapsectomy for haemorrhoidal prolapse with Lone Star Retractor System.

This technical note presents a variation of the stapled mucosal prolapsectomy for haemorrhoidal prolapse using the Lone Star Retractor. Our experience highlights the simplicity and usefulness of the technique which is based on the complete eversion of the prolapse carried out by the Lone Star Retractor, without using any kind of proctoscope and without stretching the anal sphincters. Postoperatively, rectal bleeding occurred in 4.7% of 127 cases, 9.8% of the patients complained of faecal urgency and only 3.9% had severe anal pain. None had faecal incontinence. This method simplifies the making of the purse-string suture as well as the use of the suturing device and achieves satisfactory clinical results.

Adult↗
PubMed2002

[Doppler ultrasound assisted hemorrhoid artery ligation. A new therapy in symptomatic hemorrhoids].

In 1995, Morinaga et al. (Japan) reported on a new technique in the treatment of hemorrhoids. We report the results of our first 105 patients thus treated. By a specially designed proctoscope coupled with a Doppler transducer, the hemorrhoidal arteries are looked for and ligated. All stages of hemorrhoid were treated. This method is painless, successful, and has a low rate of complications. It is for outpatients and is an alternative to all other methods in the treatment of hemorrhoids.

Adult↗
PubMed2006

[Human papilloma virus-induced disease in HIV-positive patients].

Since the introduction of highly active antiretroviral therapy (HAART), opportunistic infections by bacteria and fungi have been reduced in human immunodeficiency virus (HIV)-positive patients. However, diseases caused by human papilloma virus (HPV) have become more frequent despite HAART. There is an increased incidence of anal and cervical carcinomas, their precancerous lesions such as anal/cervical intraepithelial neoplasia, and condylomas and oral warts. In order to prevent anal carcinomas, HIV-positive patients should receive proctoscopic examinations regularly. The examination should include anoscopy and smears for cytology and HPV polymerase chain reaction.

AIDS-Related Opportunistic Infections↗
PubMed2004

Predictive factors of stenosis after stapled colorectal anastomosis: prospective analysis of 179 consecutive patients.

The incidence, risk factors, and clinical relevance of stenosis of stapled colorectal anastomosis (CRA) were studied prospectively. Anastomotic stricture was defined as the inability of traversing the anastomosis with the rigid proctoscope. The population studied consisted of 179 patients (94 males) with an average age of 59.3 years (range: 20 to 91 years). The main indication for surgery was colorectal cancer in 59% of the cases, followed by diverticular disease in 23%. The first endoscopic control was performed before 4 months in 25% of the patients, between 5 and 10 months in 50%, and during the following 10 months in 25%. Stenosis was verified with the rigid instrument in 21.1% of the cases and with the flexible colonoscope in 4.4%. The barium enema performed in 12 cases confirmed a punctiform stenosis in 5 patients, 4 of whom had been asymptomatic. An endoscopic dilatation was performed on 5 of the 8 symptomatic patients, with one relapse that required an additional dilatation. In the univariate analysis only the lesser 4-month interval was statistically significant (p = 0.033; odds ratio (OR) = 2.3; confidence interval (CI) 95% = 1.06 to 4.97). Male patients (p = 0.057; OR = 2.08; IC 95% = 0.97-4.44) show a tendency to CRA stricture that does not reach statistically significant levels. In the multivariate analysis, only sex (p = 0.04; OR = 4.11; IC 95% = 1.03 to 5.41) and the time interval (p = 0.012; OR = 2.87; IC 95% = 1.25 to 6.57) appear as independent variables in stenosis risk of a stapled CRA. The incidence of this complication depends on the criteria used for defining it. It is clinically relevant in no more than 5% of the patients. Five out of eight patients in category II were treated successfully with an endoscopic dilatation, while the other three improved spontaneously. Early stenosis, although frequent, is generally asymptomatic and disappears spontaneously. Considering the lack of correlation between the degree of stricture and its symptomatology, it is convenient to combine both the anatomic and the clinical criteria in the selection of candidates for an eventual therapeutic procedure.

Adult↗
PubMed2002

Improvement in irritable bowel syndrome following ano-rectal surgery.

BACKGROUND AND AIMS: To assess the effect on irritable bowel syndrome (IBS) of treating ano-rectal problems by applying multiple Barron's bands to prolapsing mucosa and excising haemorrhoids, with or without a low lateral sphincterotomy. PATIENTS AND METHODS: 144 patients with IBS whose ano-rectal abnormalities were treated by a single consultant surgeon. A prospective "within person" study of consecutive patients referred with ano-rectal problems who also had IBS symptoms according to the Rome criteria. All patients completed structured questionnaires about anal and IBS symptoms before operation and 6-60 months later. The findings were compared with those from patients who had no abdominal pains. RESULTS: The principal IBS symptoms of abdominal pain, abdominal distension, and altered bowel habit all improved significantly after operation. Those with persistent anal problems had more problems with persistent IBS symptoms, but when the anal problems were corrected, the IBS tended to settle. Posterior anal tenderness is present in 80% of IBS patients and is a useful diagnostic sign. CONCLUSIONS: This work suggests that in many patients with IBS there is a physical ano-rectal disorder amenable to physical treatment. Patients with IBS should all be proctoscoped carefully, with and without the patient straining, looking for abnormalities. Correcting mucosal prolapse and other anal problems produced an improvement in IBS symptoms in 86% of patients. This suggests that ano-enteric reflexes are a significant factor in irritable bowel syndrome, if not the major cause.

Anal Canal↗
PubMed2005

Endorectal ultrasound-directed biopsy: a useful technique to detect local recurrence of rectal cancer.

AIMS: This study assesses the value of endorectal ultrasound (ERUS)-directed biopsy in detecting local recurrence of rectal cancer. METHODS: We reviewed the records of patients undergoing ERUS by a single surgeon for surveillance after treatment of rectal adenocarcinoma. Lesions suggestive of local recurrence underwent ERUS-assisted core-needle biopsy (EAB) via a proctoscope after precise ERUS localization or direct ERUS-guided biopsy (EGB) via a B&K Medical probe. RESULTS: From 1991 to 2003, 525 patients underwent 2,490 surveillance ERUS. Of these patients, 51 underwent 62 biopsy sessions: 36 EGB and 26 EAB. The mean age of patients was 67.2 years (range 38-93 years); 22 (43%) were female. Only 11 patients (22%) had undergone prior radical resection of their primary tumor. No patient experienced a complication from the biopsies despite five being anticoagulated. Of 39 patients whose cancer recurrence was documented during follow-up, 32 (82%) were diagnosed at the initial biopsy session, and in five (13%), recurrence was detected only with ERUS. The combined sensitivity, specificity, and accuracy of EAB and EGB in detecting recurrence was 83, 100, and 87%, respectively. In 26 patients with local recurrence, resection was performed with curative intent. CONCLUSION: ERUS with biopsy is useful in detecting local recurrence after treatment of rectal cancer. It is safe, with a high diagnostic yield. It may be particularly useful in patients at higher risk for local recurrence (i.e., after endocavitary radiation and local excision) and may allow early detection of local recurrence, thereby permitting attempts at curative resection.

Adenocarcinoma↗
PubMed1998

Rectal carcinoid tumor associated with the Peutz-Jeghers syndrome.

A 16-year-old man who had been diagnosed with the Peutz-Jeghers syndrome at the age of 8 years presented with crampy abdominal pain. Thorough examinations revealed a large jejunal polyp causing intussusception, as well as multiple polyps in the small and large intestines. Preoperative proctoscopy demonstrated the coexistence of a submucosal tumor in the rectum. Proctoscopic mucosal resection was performed and histological and immunohistochemical examinations led to a diagnosis of carcinoid tumor. Additional transanal resection of the rectal wall showed no residual tumor and the patient has been well for 2 years to date. Although malignant tumors are increasingly reported in association with the Peutz-Jeghers syndrome, to our knowledge, there have been no previous reports of such an association in the English-language and Japanese literature.

Adolescent↗
PubMed2000

Functional outcome of stapled ileal pouch-anal canal anastomosis versus handsewn pouch-anal anastomosis.

This study was conducted to determine whether stapled ileal pouch-anal canal anastomosis (IACA) preserving the anal transitional zone (ATZ) or hand-sewn ileal pouch-anal anastomosis with mucosectomy (IPAA) is more beneficial in achieving disease eradication and better postoperative function. IACA was performed in 10 patients with ulcerative colitis (UC) and 10 patients with familial adenomatous polyposis (FAP), 15 of whom were examined proctoscopically. IPAA was performed in 4 patients with UC and 8 patients with FAP. The mean maximum resting pressure (MRP) was 55 mmHg in the IACA group and 34 mmHg in the IPAA group (P < 0.01). The anorectal inhibitory reflex was positive in 18 patients (90%) from the IACA group and 5 (42%) from the IPAA group (P < 0.05). The pre- and postoperative MRPs were 61 mmHg and 55 mmHg, respectively, in the IACA group vs 63 mmHg and 34 mmHg, respectively, in the IPAA group (P < 0.01). Whereas 16 (80%) of the 20 IACA patients could discriminate feces from gas, only 4 (33%) of the 12 IPAA patients could (P < 0.05). The mean observation period was 2.3 years, the mean length of the columnar cuff was 2.8 cm, and no case of dysplasia or adenoma was seen. Postoperative function is more favorable following IACA than following IPAA, both physiologically and symptomatically. However, long-term surveillance of the residual mucosa is necessary before making a final recommendation.

Adenomatous Polyposis Coli↗
PubMed2004

Endorectal ultrasound in the follow-up of rectal cancer patients treated by local excision or radical surgery.

PURPOSE: This study was designed to investigate the role of a scheduled follow-up protocol using endorectal ultrasonography for the diagnosis of local recurrence after local excision and radical surgery for rectal cancer. METHODS: A selected group of 275 patients with invasive rectal cancer followed prospectively by endorectal ultrasonography after curative-intent local excision (n = 108) or radical surgery (n = 167) was reviewed. For the radical-surgery group, results were compared with a group of 176 rectal cancer patients who had similar operations during the same period of time and were not entered in follow-up protocol. Excluded were patients with invasive cancers removed by snare excision, male patients treated by abdominoperineal resection, and patients treated by endocavitary radiation. Student's unpaired t-test was used to compare tumor and patient characteristics. Survival curves were estimated using the Kaplan-Meier method and compared using the log-rank test. RESULTS: In the local-excision group, 32 patients developed local recurrence, 26 (81 percent) were asymptomatic, and 10 of them (31 percent) were diagnosed only by endorectal ultrasound. We found no difference in the rates of salvage surgery or survival between patients diagnosed of recurrence by ultrasound or other methods. In the radical-surgery group, 12 patients developed local recurrence, 5 (42 percent) were asymptomatic, and 4 of them (33 percent) were diagnosed only by endorectal ultrasound. More patients with isolated local recurrence in the follow-up group underwent salvage surgery (4/9 patients; 44 percent) compared with patients without follow-up (3/13 patients; 23 percent), but the differences were not significant. CONCLUSIONS: Endorectal ultrasound identifies one-third of asymptomatic local recurrences that were missed by digital examination or proctoscopic examination. However, the impact of the earlier diagnosis in patient survival can only be determined by a larger, prospective, randomized trial.

Aged↗
PubMed2003

Treatment of hemorrhagic radiation proctitis with 4 percent formalin.

PURPOSE: The purpose of this study was to review our results in patients undergoing treatment with 4 percent formalin for radiation-induced injury to the rectum. METHODS: A retrospective review of office charts was performed, identifying all patients undergoing formalin treatment. Patient gender, initial malignancy, prior treatments, response to treatment with formalin, complications, and length of follow-up were reviewed. All patients had flexible endoscopy to assess for proximal sources of bleeding. The indication for treatment was a symptomatic patient with endoscopic evidence of radiation injury. A cotton pledget was used for direct application of 4 percent formalin to the affected area via a rigid proctoscope or anoscope. The treatment was repeated if blanching did not occur or if bleeding continued. Patients were followed up at three-week to four-week intervals and treatment was repeated based on the above indications. Treatments were continued until cessation of bleeding occurred or, when treatment failed, operative treatment was required. RESULTS: Thirty-six patients were identified. Three were lost to follow-up. Symptoms included bleeding in all but one patient, who presented with an ulcer. There were 33 (26 male) patients. Seventeen (51.5 percent) patients had prior treatment. The number of formalin treatments ranged from 1 to 13, with a mean of 3.4. The follow-up ranged from 1 to 60 months, with a mean of 18 months. Twenty-nine (88 percent) patients had improvement or cessation of symptoms. Four (12 percent) patients failed treatment. Two patients were noted to have full-thickness ulcers and both failed formalin treatment. No complications were noted related to formalin treatment. CONCLUSION: We conclude that formalin therapy is a safe and effective form of treatment that can be performed in the office with minimal discomfort and no complications. It can be performed multiple times until results are achieved. Formalin therapy may be useful as a first-line treatment for chronic radiation proctitis, however, a prospective controlled trial comparing modalities is required to prove this to be true.

Colonoscopy↗
PubMed2005

Transanal endoscopic microsurgery: a prospective evaluation of functional results.

PURPOSE: Local excision is a commonly used technique for many benign and selected malignant rectal lesions. Compared with radical resection, it is associated with decreased morbidity and mortality and improved functional results. Transanal endoscopic microsurgery is gaining popularity because of its ability to access the upper rectum and its precise excision techniques. However, the functional consequences have not been extensively studied. METHODS: All patients subject to transanal endoscopic microsurgery prospectively completed preoperative and postoperative (6 weeks) surveys including Fecal Incontinence Severity Index, Fecal Incontinence Quality of Life, number of bowel movements per 24 hours, and ability to defer defecation. All data were collected by an independent research coordinator. Demographics, operative details, and complications were also collected prospectively. RESULTS: Forty-one patients successfully underwent transanal endoscopic microsurgery. Fourteen patients had malignant lesions and 27 had benign lesions. Two patients required abdominoperineal resection based on postoperative diagnosis. Thirty-nine patients have completed follow-up and were available for review. Mean length of surgery was 64 minutes and length of stay was 0.9 day. Average distance from the anal verge to the proximal tumor margin was 11.4 cm and mean tumor size was 8.75 cm. Twenty-three patients had full-thickness excision with primary closure, ten had full-thickness excision without closure, five had partial-thickness excision, one had an excision of a mass in the anovaginal septum, and one had resection of an anastomotic stricture. Each patient served as his own control. Preoperative and postoperative number of bowel movements per 24 hours were 2.0 and 2.0, respectively. Preoperative vs. postoperative urgency (ability to defer defecation less than ten minutes) was unchanged. Mean preoperative and postoperative Fecal Incontinence Severity Index scores were 2.4 (range, 0-43) and 2.4 (range, 0-17), respectively (higher scores indicate worse function). In addition, the four parameters measured by the Fecal Incontinence Quality of Life survey were unchanged when preoperative and postoperative data were compared. CONCLUSIONS: Transanal endoscopic microsurgery allows precise excision of tumors throughout the rectum. However, it involves inserting a 40-mm-diameter operating proctoscope and significant operating times. Despite this, as measured by ability to defer defecation, number of bowel movements per 24 hours, Fecal Incontinence Severity Index, and Fecal Incontinence Quality of Life survey, transanal endoscopic microsurgery has no detrimental affect on fecal continence.

Anal Canal↗
PubMed2005

Laparoscopic resection rectopexy for rectal prolapse.

INTRODUCTION: The laparoscopic approach in suture rectopexy with sigmoid resection is appealing as surgery is mainly confined to the pelvis. METHODS: The procedure is performed in modified lithotomy position using five trocars. In the case reported, the inferior mesenteric artery is divided distally to the left colic artery branch. The sigmoid colon is mobilized medially and may be mobilized laterally up to the descending colon, depending on the extent of resection. The splenic flexure remains in place. The rectum is mobilized from the presacral fascia down to the pelvic floor, sparing the hypogastric nerves. The rectum is transected in its upper third and the colonic stump pulled outside after enlarging the left lower abdominal incision to a length of 5 cm. The colorectal anastomosis is established intracorporeally in a double-stapling technique. Three 2-0 braided nonabsorbable sutures are placed to attach the right lateral stalks of the rectum to the presacral fascia. Proctoscopic examination has to ensure that there is no luminal compromise or air leakage. RESULTS: The videotape reports about a 37-year-old male patient with a rectal prolapse of 8 cm in length. First symptoms had occurred in childhood. He reported about temporary constipation and repeated rectal bleeding. During surgery, an elongated sigmoid was found. Laparoscopic sigmoid resection and suture rectopexy were carried out. There were no intraoperative or postoperative complications. The patient was discharged from the hospital on the sixth postoperative day. CONCLUSION: Laparoscopic resection rectopexy is safely feasible as a minimally-invasive treatment option for rectal prolapse.

Adult↗
PubMed2005

Doppler-guided hemorrhoidal artery ligation: an alternative to hemorrhoidectomy.

PURPOSE: Postoperative pain is the main adverse effect of formal hemorrhoidectomy. A new technique based on Doppler-guided ligation of the terminal branches of the superior hemorrhoidal artery was introduced in 1995 as an alternative to hemorrhoidectomy. The authors report a preliminary experience with this procedure. METHODS: The Doppler-guided hemorrhoidal artery ligation technique uses a special proctoscope bearing a Doppler transducer that allows identification and suture ligation of the hemorrhoidal arteries. Sixty-eight consecutive patients (mean age, 48 years; range, 21-74 years) with Grade 3 hemorrhoids were treated. RESULTS: Intraoperative discomfort was measured by a visual analog scale (1-10) and resulted in a mean score of 2.3 (range, 1.3-2.8). Only 38 percent of patients required postoperative analgesia. Patients were examined at 1 week, 1 month, and 3 months and every 6 months thereafter. The mean follow-up was 11 (range, 3-18) months. Bleeding resolved in 91 percent of patients, pain in 73 percent, and prolapse in 94 percent. Complications were recorded in five patients and included persistent pain for more than two days in two patients (3 percent), swelling and thrombosis of one of the hemorrhoids in two patients (3 percent), and a secondary hemorrhage in one patient (1.5 percent). CONCLUSION: Doppler-guided ligation of the hemorrhoidal artery is a safe and effective alternative to hemorrhoidectomy and is associated with minimal discomfort and low risk of complications.

Adult↗