Ureteral strictures and fistulae following radical hysterectomy

[Management of a ureteroarterial fistula]

Ureteroarterial fistulae are rare after vascular surgery with only 16 cases being reported in the literature. We report a 65-year-old woman who presented with massive gross hematuria following endostenting of an iliac aneurysm. Cystoscopy demonstrated ejaculation of blood from the left orifice and angiography revealed an ureteroiliac fistula between the left ureter and the common iliac artery. Following placement of a vascular endoprosthesis and a double J stent gross hematuria developed. This case highlights the diagnosis and therapeutic approach in patients with suspected ureteroarterial fistula.

Brachytherapy versus radical hysterectomy after external beam chemoradiation: a non-randomized matched comparison in IB2-IIB cervical cancer patients

Background

A current paradigm in the treatment of cervical cancer with radiation therapy is that intracavitary brachytherapy is an essential component of radical treatment. This is a matched retrospective comparison of the results of treatment in patients treated with external beam chemoradiation (EBRT-CT) and radical hysterectomy versus those treated with identical chemoradiation followed by brachytherapy.

Methods

In this non-randomized comparison EBRT-CT protocol was the same in both groups of 40 patients. In the standard treated patients, EBRT-CT was followed by one or two intracavitary Cesium (low-dose rate) applications within 2 weeks of finishing external radiation to reach a point A dose of at least 85 Gy. In the surgically treated patients, radical hysterectomy with bilateral pelvic lymph node dissection and para-aortic lymph node sampling were performed within 7 weeks after EBRT-CT. Response, toxicity and survival were evaluated.

Results

A total of 80 patients were analyzed. The patients receiving EBRT-CT and surgery were matched with the standard treated cases. There were no differences in the clinicopathological characteristics between groups or in the delivery of EBRT-CT. The pattern of acute and late toxicity differed. Standard treated patients had more chronic proctitis while the surgically treated had acute complications of surgery and hydronephrosis. At a maximum follow-up of 60 months, median follow-up 26 (2–31) and 22 (3–27) months for the surgery and standard therapy respectively, eight patients per group have recurred and died. The progression free and overall survival are the same in both groups.

Conclusion

The results of this study suggest that radical hysterectomy can be used after EBRT-CT without compromising survival in FIGO stage IB2-IIB cervical cancer patients in settings were brachytherapy is not available. A randomized study is needed to uncover the value of surgery after EBRT-CT.

Radiation-sparing managements for cervical cancer: a developing countries perspective

Cervical cancer is the seventh most frequent cancer worldwide but more than 80% of cases occur in developing countries. Till date, radiation therapy with external beam and brachytherapy remains as the core treatment for most stages of cervical cancer. However, radiation treatment protocols and equipment modelled on the best developed countries can be seldom applied directly to developing countries owing to financial constraints and lack of qualified personnel, thus, a substantial proportion of patients do not have access to even palliative radiation therapy. Treatment options when the standard therapy is either not available or difficult to reproduce in particular settings is highly desirable with the potential to save lives that otherwise could be lost by the lack of adequate treatment. These options of treatment ideally had to have show, 1) that these are not inferior to the "standard" in terms of either survival or quality of life; 2) that these can be delivered in settings were the "standard" is not available or if available its quality is poor; and 3) that the treatment option be accepted by the population to be treated.

Based on these considerations, it is obvious that cervical cancer patients, particularly those who live in countries with limited resources and therefore may not have sufficient radiation therapy resources are in need of newer therapeutical options. There is now a considerable amount of information emanating from clinical studies where surgery has a major role in treating this disease. These forms of "radiation-sparing" treatments include total mesometrial resection that could make unnecessary the use of adjuvant radiation; neoadjuvant chemotherapy that could avoid the use of adjuvant radiation in around 85% of patients and preoperative chemoradiation that could make brachytherapy dispensable. The feasibility and therapeutical value of these potential forms of management need to be prospectively evaluated.

Pathologic response and toxicity assessment of chemoradiotherapy with cisplatin versus cisplatin plus gemcitabine in cervical cancer: A randomized Phase II study

PURPOSE

To compare gemcitabine and cisplatin (GC) with cisplatin (C) concurrent with radiotherapy in International Federation of Gynecology and Obstetrics Stage IB2, IIA, and IIB cervical carcinoma in a preoperative setting. The main endpoints were the pathologic response rate and toxicity.

METHODS AND MATERIALS

A total of 83 patients were randomized to either C or GC. Treatment consisted of six doses of cisplatin at 40 mg/m(2) every week for Arm 1 (C) and six doses of gemcitabine at 125 mg/m(2) plus cisplatin at 40 mg/m(2) every week for or Arm 2 (GC) Both regimens were administered concurrent with 50 Gy of external beam radiotherapy in 2-Gy fractions for 5 weeks. After chemoradiotherapy, patients underwent radical hysterectomy.

RESULTS

All 83 patients were studied for toxicity and 80 for response. The complete pathologic response rate in the C arm and GC arm was 55% (95% confidence interval, 35.5-73%) and 77.5% (95% confidence interval, 57-90%; p = 0.0201). Among those with a partial response, 7 patients each had high and intermediate-high risk factors for recurrence in their surgical specimens in the C arm vs. 2 and 3 patients, respectively, with these characteristics in the CG arm. The number of weekly doses and the dose intensity of GC were lower than for C. The time to complete external beam radiotherapy also favored the C arm. The CG combination produced greater GI and hematologic toxicity.

CONCLUSION

The radiosensitizing combination of GC achieved a greater pathologic response rate than C in the treatment of cervical cancer.

Early stage cervical cancer: aborted versus completed radical hysterectomy

In a retrospective study, the treatment results of patients with stage IB and IIA cervical cancer were evaluated. In 26 patients radical hysterectomy was discontinued after intra-operative finding of positive lymph nodes. These patients received radiotherapy. In 57 patients lymph nodes were negative, and radical hysterectomy was completed. Of these, 13 patients received adjuvant radiotherapy because of positive surgical margins or parametrial involvement, and 44 patients received no adjuvant therapy. Five-year survival was 61% in patients with positive pelvic lymph nodes and 88% in patients with negative pelvic lymph nodes, comparable with the results mentioned in the literature. The complication rate did not differ from similar other reports. This management shows treatment results comparable with other reports with minimal morbidity.

Surgical aspects of cervical cancer

Surgery maintains an important role in the diagnosis and treatment of premalignant as well as early invasive and recurrent cervical cancer. Although the indications for and benefits of surgical staging remain to be determined, specific procedures frequently are necessary to manage treatment-related complications. The authors review the indications, morbidity, and outcome of these procedures.

Ureteral obstruction and ureteral fistulas after aortofemoral or aortoiliac bypass surgery

Ureteral injury after aortofemoral or aortoiliac bypass surgery has seldom been described in the literature considering the large number of bypass operations performed. Some causative factors, such as the position of the bypass, are obvious while others are less clear. However, no attempt has been made to unify criteria to establish a management protocol. Of 154 cases of ureteral units with ectasia reviewed ureteral fistulas were present in 19. Radiological ureteral obstruction appears to precede fistula formation. Symptoms, time of diagnosis and treatment according to the predominant etiology have been discussed. Etiological (in varying degrees of importance), clinical and diagnostic criteria, together with a management and therapeutic protocol in which early and late lesions are clearly differentiated were established, while bearing in mind that not all radiological obstruction patterns correspond to true ureteral lesions.