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A Cohort Study of Patients Treated With Brachytherapy for Selected Desmoid Patients in Gardner Syndrome
study id #: NCT01286662
condition: Gardner Syndrome, Colorectal Carcinoma, Desmoid Tumor
The purpose of this study is to assess the long-term outcome in a cohort of Gardner-Syndrome patients receiving prophylaxis and treatment for intestinal and non-intestinal tumors.
start date: January 1978
estimated completion: December 2010
last updated: January 31, 2011
phase of development: Not Available
size / enrollment: 105
Observational Model: Cohort
Time Perspective: Retrospective
Since 1978, we have been following a family of 105 descendants with Gardner Syndrome (GS). Mutation carriers were screened by endoscopy, and colorectal resection was performed upon pending malignancy. Resectable desmoid tumors were excised, whereas large tumors of the abdominal wall were treated by a combination of brachytherapy (BT) and radiotherapy (RT). Outcome was analyzed with respect to length of tumor-free survival, and morbidity from surgery or radiotherapy. Results: 37 of 105 family members have GS. Preventive colorectal resections were performed in 16 patients (15%), with one death due to subsequent gastric cancer. In 4 patients who denied screening endoscopy, invasive tumors of the colon (3 patients) and stomach (one patient each) developed. Of 33 desmoid tumors, 10 (30%) were located in the mesentery, 17 (52%) in the abdominal wall, and 6 (18%) in extra-abdominal sites. Excision of 12 desmoids was performed in 8 patients (36%), and 4 were treated by a combination of BT and RT. Following BT/RT, all patients showed full or partial remission.
- Mortality [ Time Frame:1978-2010 (as long as patients live) ] [ Designated as safety issue: No ]
- Incidence of colorectal carcinoma [ Time Frame:1978-2010 (entire patient life) ] [ Designated as safety issue:No ]
- Incidence of desmoid tumors [ Time Frame:1978-2010 (entire patient life) ] [ Designated as safety issue: No ]
Family with an identical adenomatous polyposis coli (APC-) germ line mutation
Negative testing for adenomatous polyposis coli (APC-) germ line mutation
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