Surgical and medical management of small bowel gastrointestinal stromal tumors: A report of the Dutch GIST registry |
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| Affiliation: | 1. University of Groningen, University Medical Center Groningen, Department of Medical Oncology, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands;2. Netherlands Cancer Institute, Antoni van Leeuwenhoek, Department of Medical Oncology, Plesmanlaan 121, 1066, CX, Amsterdam, the Netherlands;3. Netherlands Cancer Institute, Antoni van Leeuwenhoek, Department of Surgical Oncology, Plesmanlaan 121, 1066, CX, Amsterdam, the Netherlands;4. Leiden University Medical Center, Department of Medical Oncology, P.O. Box 9600, 2300, RC, Leiden, the Netherlands;5. Erasmus MC – Cancer Institute, Department of Surgical Oncology, s Gravendijkwal 230, 3015, CE, Rotterdam, the Netherlands;6. Radboud University Medical Center, Department of Medical Oncology, P.O. Box 9101, 6500, HB, Nijmegen, the Netherlands;7. Radboud University Medical Center, Department of Surgical Oncology, P.O. Box 9101, 6500, HB, Nijmegen, the Netherlands;8. University of Groningen, University Medical Center Groningen, Department of Surgical Oncology, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands;1. Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands;2. Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands;1. Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China;2. Department of General Surgery, General Hospital of Guangzhou Military Command of PLA, China;3. Department of General Surgery, Guangdong No. 2 Provincial People''s Hospital, Guangzhou, Guangdong Province, China;1. Department of Upper Gastrointestinal and Hepato-pancreato-biliary Surgery, Barretos Cancer Hospital, Barretos, SP, Brazil;2. IRCAD (Research Institute Against Cancer of the Digestive System) Latin America, Barretos, SP, Brazil;3. Department of Digestive Surgery, Escola Paulista de Medicina – UNIFESP, São Paulo, SP, Brazil |
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| Abstract: | BackgroundA cohort of 201 patients with small bowel gastrointestinal stromal tumors (GIST) treated between January 1st, 2009 and December 31st, 2016 in five GIST expertise centers in the Netherlands was analyzed. Goal of this study was to describe the clinical, surgical and pathological characteristics of this rare subpopulation of GIST patients, registered in the Dutch GIST registry.MethodsClinical outcomes and risk factors of patients with small bowel GIST who underwent surgery or treated with systemic therapy were analyzed. A classification was made based on disease status at diagnosis (localized vs. metastasized).Results201 patients with small bowel GIST were registered of which 138 patients (69%) were diagnosed with localized disease and 63 patients (31%) with metastatic disease. Approximately 19% of the patients had emergency surgery, and in 22% GIST was an accidental finding. In patients with high risk localized disease, recurrence occurred less often in patients who received adjuvant treatment (4/32) compared to patients who did not (20/31, p < 0.01). Disease progression during palliative imatinib treatment occurred in 23 patients (28%) after a median of 20.7 (range 1.8–47.1) months. Ongoing response was established in 52/82 patients on first line palliative treatment with imatinib after a median treatment time of 30.6 (range 2.5–155.3) months.ConclusionPatients with small-bowel GIST more frequently present with metastatic disease when compared to patients with gastric GIST in literature. We advocate for Prospective registration of these patients and investigate the use of surgery in patients with limited metastatic disease. |
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| Keywords: | GIST Small bowel Surgery Treatment Sarcoma |
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