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[Complications of urinary diversion after radiotherapy].

Primary radiation therapy may be recommended for patients with invasive bladder cancer, gynecological or prostatic cancer. When complications occur or in case of malignant recurrence, urinary diversion may be the best chance to restore an acceptable quality of life. The complication rate after this surgery is doubled. We report our experience in 32 patients submitted to urinary diversion after radiotherapy from 1985 to 2000: 2 enteric fistulas; 2 urinary fistulas; 5 stenosis of uretero-intestinal anastomosis were our complications. Radical cystectomy (24 cases) or anterior pelvic exenteration (8 females) preceded urinary diversion. Preoperative high-dose radiotherapy contributes to increased postoperative morbidity rates, particularly entero-enteric fistulas, uro-intestinal fistulas and stenosis of the uretero-intestinal anastomosis. In our experience, in most of the major urinary or enteric complications non surgical management was inefficient and surgical management was necessary.

Constriction, Pathologic↗

Use of ileocecal continent urinary reservoir in patients with previous pelvic irradiation.

OBJECTIVE: To assess the results of the use of ileocecal continent urinary reservoirs in patients with previous pelvic irradiation. METHODS: A retrospective analysis for morbidity and clinical outcome was undertaken for 37 female patients with prior therapeutic pelvic irradiation who underwent continent urinary diversion with a detubularized right colonic segment as the urinary reservoir, a plicated ileocecal valve as the continence mechanism, and a tapered distal ileum for efferent catheterization. RESULTS: Thirty-one patients had persistent or recurrent pelvic malignancies, 17 of whom had total pelvic exenteration and 14 had anterior exenteration. The remaining 6 patients had radiation-induced vesicovaginal fistulas without evidence of recurrence and underwent urinary diversion alone. Follow-up ranged from 2 to 33 months (median 11 months). Postoperative radiographic evaluation revealed no evidence of urinary extravasation. Of the 74 implanted ureters, 4 had reflux (5%), 2 developed stricture (3%), and 5 had mild to moderate hydronephrosis (7%). All patients achieved daytime continence with catheterization intervals of 3-8 hr (median 4 hr) and capacities of 200-1000 cc (median 500 cc). Nighttime continence was reported by 33 of 37 patients (89%). Reoperation was required in 3 patients (8%), 2 with stoma stenosis and 1 with difficulty in catheterization. CONCLUSIONS: The use of the ileocecal continent urinary reservoir in patients with previous pelvic irradiation achieves results comparable to those reported for nonirradiated patients, thus supporting its use in this select group of patients.

Female↗

Second primary bladder cancer following pelvic irradiation for other malignancies.

Between 1985 and 1990, five cases of radiation-induced bladder cancer were treated at our center. The first primary neoplasm was uterine cervical cancer in three patients, uterine endometrial cancer in one patient, and Hodgkin's disease in one patient. Additional treatment for the primary neoplasm included panhysterectomy for the patient with endometrial cancer and cyclophosphamide-based combination chemotherapy for the patient with Hodgkin's disease. The mean age at development of bladder cancer was 60.4 years, and the average time interval between irradiation and development of bladder cancer was 14.6 years. All the bladder cancers were invasive. The treatment modalities included anterior pelvic exenteration in one patient, partial cystectomy in one patient, reirradiation in two patients, including the use of intraoperative electron therapy in one patient, and TUR plus endoscopic Nd:YAG laser treatment in one patient. Four patients are alive without disease at a mean follow-up period of 15 months from the diagnosis of bladder cancer.

Adenocarcinoma↗

Nonrefluxing colon conduit for temporary or permanent urinary diversion in children.

Colon conduit, with nonrefluxing ureterosigmoid anastomoses, was performed upon 21 children in the past 3 1/2 yr for the following indications: (1) previously unoperated exstrophy of the bladder; (2) exstrophy of the bladder with prior ileal conduit; (3) previously unoperated neurogenic bladder; (4) neurogenic bladder with prior ileal conduit; and (5) with anterior pelvic exenteration for sarcoma of the prostate. In some of these patients the conduit will be a permanent diversion; in others it will be anastomosed later to the colon, providing a staged method of ureterosigmoid urinary diversion. Nine patients have undergone the second stage of anstomosis of the conduit to the colon with satisfactory outcome. Colon conduit diversion is a more time-consuming procedure than ileal loop diversion. It can require 6-8 hr in a patients with a prior ileal diversion, particualarly if the ureters require tapering. Our experience with this procedure leads us to the following conclusions: (1) this is a better method than ileal conduit for permanent diversion; (2) it offers an alternative way for treating patients with bladder exstrophy; (3) it is useful in patients with pelvic cancer; and (4) it should be considered for those patients with ileal conduits who are not doing well, i.e., who have infection and renal deterioration.

Bladder Exstrophy↗

Management of colovesical fistulae associated with pelvic malignancy.

Thirteen patients with malignant colovesical fistulae are presented. The underlying pathology was cancer of the colon (seven cases), bladder (four cases) and cervix (two cases). The series demonstrates that wide surgical excision may be needed to achieve tumour clearance and that this may necessitate pelvic exenteration. Three patients who underwent inadequate tumour excision developed recurrence in the bladder, two with a fatal outcome. Wide excision of the bladder may be performed without urinary diversion by subtotal cystectomy and a reconstructive procedure. Substitution cystoplasty was performed on two patients at the time of tumour excision. Urinary tract involvement by such tumours is often extensive and optimal results may be achieved with a multidisciplinary approach.

Aged↗

Peripheral primitive neuroectodermal tumor (PPNET) of pelvic origin: report of a case arising from an unusual location.

A peripheral primitive neuroectodermal tumor arising from the abdominopelvic cavity is reported in a 24-year-old young male without any previous remarkable pathology. He was admitted to our hospital with complaints of urinary symptoms (acute urinary retention) and mild intestinal occlusion that had been present for three months. Physical examination and CT scan revealed a pelvic mass occupying the entire pelvic cavity. The diagnostic workup included a CT-guided biopsy which defined the tumor as a sarcomatous type. Radical surgery was performed including tumor resection, pelvic exenteration (bladder and prostate gland) and urinary and fecal diversion. Adjuvant chemotherapy (VAIA) was delivered once the histology was confirmed. We reviewed the available literature focusing on the varied nomenclature of this tumor (peripheral neuroepithelioma, Askin's tumor, Ewing's extraosseous tumor, peripheral adult neuroblastoma, peripheral primitive extracranial neuroectodermal tumor (PPNET), the clinical features, the role of diagnostic imaging techniques, pathologic assessment and controversial therapeutic management. In addition, the prognosis and survival of this rare condition were analyzed.

Adult↗

Benefits of radioimmunoguided surgery for pelvic recurrence.

AIM: Surgery for recurrent rectal cancer is usually traumatic and of questionable curative value. The use of radioimmunoguided surgery (RIGS) in enhancing the surgeon's assessment of the extent of disease in these patients was investigated. METHODS: Twenty-one patients diagnosed with recurrent pelvic cancer were operated using the RIGS(O)system. Preoperative assessment included CTs of chest, abdomen and pelvis as well as colonoscopy. Patients were injected with CC49, a monoclonal antibody (MoAb) labelled with 125I. Surgical exploration was followed by survey with the gamma-detecting probe. RESULTS: Surgical exploration identified eight intra-colorectal recurrences, nine extra-colonic pelvic recurrences and five extra-pelvic lymph node metastases. RIGS exploration confirmed all intra-colonic recurrences except for one (patient with no MoAb localization), identified 13 pelvic recurrences and 10 lymph node metastases. There were seven patients with occult findings (33%), resulting in a modified surgical procedure. Surgery included five abdomino-perineal resections, six low anterior resections, seven excisions of presacral tumour, eight total abdominal hysterectomy and bilateral salpingo-oophorectomy, one pelvic exenteration and one post-exenteration. There were no operative deaths. Eight patients had minor complications, and one patient had a major complication with reoperation due to urinary leak. The mean follow-up was 18 months. Ten patients died of disease. CONCLUSION: Although not curative, RIGS can help the surgeon in the decision-making process through better disease staging.

Adult↗

Management of recurrent pelvic tumors.

The management of regional tumor recurrence in the pelvis traditionally has been a difficult problem for surgeons and oncologists. The only meaningful therapy for these patients is a potentially curative re-resection. The records and operative reports of 29 patients with regional pelvic tumor recurrence treated between 1981 and 1986 were reviewed. The operative procedures performed included three bowel resections, six abdominoperineal resections, eight pelvic exenterations, eight resections of tumor recurrence, and four conservative procedures. There was one operative death in this group. Significant morbidity was noted in the group but was clustered in a small number of patients operated on early in the series. The median follow-up in this series was 13 months (range, two to 51 months). Nineteen (65%) of the patients are surviving at a median follow-up of ten months (range, two to 51 months). The median survival (following resection) in the ten patients (35%) who died was 18 months. In 15 (52%) of the patients, a complete resection was performed. In this group, the survival is 80% with a median follow-up of 11 months. Seven (37%) are surviving with no evidence of disease. Palliation of symptoms occurred in 23 (79%) of the 29 patients. Radical resection of tumor recurrence in the pelvis can be performed with acceptable mortality and complication rates. This therapy should be considered for further clinical trials combining surgical and adjuvant therapy in patients with regional pelvic tumor recurrence.

Adult↗

Medical management of recurrent aggressive angiomyxoma with gonadotropin-releasing hormone agonist.

Patients with aggressive angiomyxoma may experience local recurrences. We report a case of recurrent aggressive angiomyxoma medically treated successfully with a gonadotropin-releasing hormone agonist. A 34-year-old woman with a huge perineal tumor underwent an extensive resection of the abdominoperineal tumor combined with total pelvic exenteration. Histology showed aggressive angiomyxoma and the tumor cells were immunoreactive for estrogen and progesterone receptors. Although the patient had experienced no local recurrence for 12 months under adjuvant therapy with a gonadotropin-releasing hormone agonist, a recurrence occurred 3 months after the completion of adjuvant therapy. The patient underwent medical treatment with a gonadotropin-releasing hormone agonist and had a complete resolution of the recurrent tumor again. Hormonal treatment with a gonadotropin-releasing hormone agonist can be applied for small primary aggressive angiomyxomas in addition to adjuvant therapy for residual tumors.

Adult↗

Psychosexual dysfunction in women with gynaecological cancer following radical pelvic surgery.

OBJECTIVE: To assess the prevalence and severity of psychosexual dysfunction in women treated for cancer of the cervix and vulva by radical vulvectomy, Wertheim's hysterectomy and pelvic exenteration; and to identify the risk factors for sexual morbidity and ways in which it might be reduced. DESIGN: Retrospective study of patients by questionnaire and semistructured interview, 6 months to 5 years following surgery. SETTING: Gynaecology-Oncology Unit of a general hospital. PATIENTS: 105 English speaking women with gynaecological cancer. RESULTS: 90% of the women in relationships had been sexually active prior to surgery. Of this group, 24% had no sexual difficulties post-operatively; 66% of the latter still had problems more than 6 months later, and 15% of the latter never resumed intercourse (excluding those with a colpectomy). 82% of those aged less than 50 years who had had radiotherapy suffered sexual dysfunction. Lack of desire was the commonest problem, and half the women felt that their sexual relationship had deteriorated, yet only 16% felt that their marriage had worsened. Younger women were more likely to attribute personal and marital distress to their sexual problems. More information on sexual matters would have been liked by 28% of the women. CONCLUSIONS: Sexual dysfunction is common following radical pelvic surgery and tends to remain a chronic problem. As well as organic causes there is a strong psychogenic element brought about by loss of fertility, disfigurement, depression and anxiety about one's desirability as a sexual partner. The presence of a stable relationship before the diagnosis of cancer helps women cope better, and young single women are a very vulnerable group. Patients want more information on sexual matters and the provision of sexual counselling may improve outcome in the future.

Adult↗

Peripheral nerve and ureteral tolerance to intraoperative radiation therapy: clinical and dose-response analysis.

Between April 1981 and July 1984, 51 patients received intraoperative radiation therapy (IORT) as a component of therapy for the management of primary or recurrent pelvic malignancies which were initially unresectable for cure. For these patients, curative surgical alternatives did not exist, or would have involved extensive procedures such as pelvic exenteration, distal sacrectomy, hemipelvectomy, or hemicorporectomy. The primary disease was colorectal in 38 patients. Treatment consisted of external beam radiation (range 3000 to 6890 cGy, median 5040 cGy), surgical debulking when feasible, and an intraoperative electron beam boost to the gross or microscopic residual disease (dose range 1000 to 2500 cGy, median 1750 cGy) utilizing 9-18 MeV electrons. The most common IORT associated toxicities were peripheral neuropathy and ureteral obstruction. None were life-threatening or fatal in severity. Of the 50 patients evaluable for neurotoxicity analysis, 16 (32%) developed peripheral neuropathy consisting of pain in 16 patients, numbness and tingling in 11, and weakness in 8. The pain, numbness and tingling resolved in about 40% of patients, while weakness resolved in only 1 of 8. Sixteen ureters were initially unobstructed by tumor at the time of IORT. Of these, 10 (63%) subsequently showed evidence of obstruction and hydronephrosis. The development of neurotoxicity was more common at IORT doses of 1500 cGy or more versus 1000 cGy. Ureteral obstruction with hydronephrosis occurred more frequently at IORT doses of 1250 cGy or more compared to 1000 cGy. There was no relationship between the likelihood of developing complications and the total external beam dose. The observed dependence of human nerve toxicity primarily on the IORT dose is consistent with data generated from animal experiments.

Colorectal Neoplasms↗

Anal cloacogenic carcinoma: classification and clinical behavior.

A retrospective study of 35 patients with anal cloacogenic carcinomas showed that the histological characteristics of the tumors were correlated with their biological behavior. The basaloid squamous type of cloacogenic carcinoma was more common in women (3.6:1) and had a more favorable course in both men and women, with a mean survival of 5.0 years. Glandular variants of these tumors, with an adenocystic or mucoepidermoid pattern, occurred predominantly in men and had a more aggressive course, manifested by early metastases to inguinal and mesenteric lymph nodes, liver, and lung, with mean survival limited to 2.5 years. Nine of the 11 patients who survived longer than five years had the basaloid squamous histological pattern and were treated by abdominoperineal resection or pelvic exenteration; five of these patients also received postoperative therapy with radiation. The overall actual five-year survival for patients with anal cloacogenic carcinoma was 41% in this study. The histological pattern of anal cloacogenic carcinoma provides useful prognostic information to the clinician.

Adenocarcinoma↗

The use of a biodegradable mesh to prevent radiation-associated small-bowel injury.

Radiation-associated small bowel injury occurs in up to 50% of patients receiving postoperative radiotherapy following pelvic cancer surgery. We describe our experience using a biodegradable mesh that allows the small bowel to be supported above the pelvic inlet and is totally absorbed following radiation therapy. Between 1985 and 1989, 45 procedures were performed in patients with carcinoma of the rectum (anterior resection in 15 patients, abdominoperineal resection in 23 patients, pelvic exenteration in six patients, and proctocolectomy in one patient). In 30 patients a polyglycolic acid (Dexon) mesh was used, and in 15 patients a polyglactin 910 (Vicryl) mesh was used. Forty-four patients received postoperative radiotherapy. The mean (+/- SEM) dose was 56.8 +/- 18.4 Gy. There were no immediate complications related to the mesh. Follow-up ranged from 12 to 53 months (median follow-up, 34 months). With the exception of two patients who had a polyglactin 910 mesh and who developed bowel obstruction due to adhesions under the anterior abdominal wall, there has been no documented incidence of clinical radiation-associated small bowel injury. The use of the absorbable mesh may permit us to use higher doses of postoperative radiotherapy without the associated hazard of radiation-associated small bowel injury.

Adult↗

Colorectal sarcoma: analysis of failure patterns.

BACKGROUND AND OBJECTIVES: Colorectal sarcomas (CRS) are rare and their treatment remains controversial, especially for those located in the rectum. The aim of this paper is to evaluate our experience, with special emphasis on the failure pattern after surgical therapy alone or combined with postoperative radiotherapy. MATERIALS AND METHODS: The medical records and histological slides of 13 CRS patients treated between 1986 and 1996 were reviewed retrospectively. RESULTS: The patients included eight males and five females, with a median age of 54 years; nine of their primary tumors were located in the rectum, and four in the colon. The histologies were leiomyosarcoma in nine cases and malignant fibrous histiocytoma in four cases. Surgical treatment consisted of anatomical colectomy (four); local excision (three); abdominoperineal resection (APR)(two); low anterior resection (LAR)(two); LAR en bloc with the prostate (one), and total pelvic exenteration (one). One operative death occurred. The median size of the tumors was 8 cm (range, 5-40). The tumors were graded as low, three, and high, ten. The median follow-up was 24 months. Eight patients in the overall group developed recurrences as follows: local, three; local and distant, three, and distant, two. Five out of nine patients with rectal sarcoma received adjuvant postoperative radiotherapy (PRT). Local recurrence occurred in 20% (1/5) of those who received PRT, and in 100% (3/3) of those who did not. The overall 5-year survival was 40%, and the 5-year survival for patients with low-grade tumors was 66%, as compared with 22% for those with high-grade tumors. CONCLUSIONS: The patterns of failure in CRS are combined in both local and distant sites. However, our results suggest that in rectal sarcoma, the use of surgery + PRT may reduce the local recurrence rate; in selected patients, it may allow for anal sphincter preservation.

Adult↗

Exenterative pelvic surgery.

A review of the history, indications, basic technique, end results, and complications of exenterative surgery for pelvic neoplasms is provided. The authors discuss their broad personal experience with the operation. Much of this experience evolved from work at Barnes Hospital and the Ellis Fischel State Cancer Hospital. The techniques are applicable to advanced neoplasms of the cervix uteri, scrotum, urinary bladder, and other, less frequent neoplasms still confined to the pelvis.

Female↗

Squamous papilloma of the urinary tract is unrelated to condyloma acuminata.

BACKGROUND: To the authors' knowledge, there is no previous report of squamous papilloma of the urinary tract. It is uncertain whether there is a correlation between squamous papilloma, condyloma acuminatum, and verrucous carcinoma. METHODS: The authors evaluated the clinical and pathologic features of squamous papilloma (5 of the bladder, 2 of the urethra), condyloma acuminatum (3 cases), and verrucous carcinoma (3 cases) of the urinary bladder and performed human papillomavirus (HPV) DNA in situ hybridization studies to determine whether HPV was a common feature shared by these lesions. In addition, DNA ploidy evaluation by image cytometry and p53 immunohistochemical staining were performed. RESULTS: Squamous papilloma of the urinary tract occurred in elderly women and followed a benign clinical course with infrequent recurrence. All squamous papillomas were HPV DNA negative and DNA diploid with no or minimal p53 nuclear accumulation. Condyloma acuminata of the bladder contained HPV DNA, increased p53 protein expression, and aneuploid DNA content. All three cases of condyloma acuminata were associated with coexistent condylomata of the external genitalia, and two required pelvic exenteration for uncontrolled expansile growth. Verrucous carcinoma of the bladder occurred in elderly patients. All three cases of verrucous carcinoma were negative for HPV DNA and DNA aneuploid, and they exhibited consistent p53 expression. CONCLUSIONS: These data indicate that squamous papilloma is a distinct entity not related to condyloma or verrucous carcinoma. These lesions are benign, HPV DNA negative, DNA diploid, and they lack p53 overaccumulation.

Adult↗