Abstract:
BACKGROUND:Treatment decisions for gastrointestinal stromal tumors (GIST) are frequently guided by tumor characteristics. An accurate prediction of recurrence is important to determine the benefit from targeted therapy. Our goal was to compare the concordance of three validated risk stratification schemes with observed outcomes in patients undergoing resection for GISTs. METHODS:Patients who underwent surgery for GISTs from 2001 to 2011 at a tertiary centre were identified. Survival was evaluated using the Kaplan-Meier product-limit method. Cox proportional hazard models were used to obtain predicted recurrence for each system and concordance indices were calculated. RESULTS:Of 110 patients identified, 77 (70.0%) had surgery and 29 (26.4%) also received adjuvant therapy. The majority of patients had tumors that were very low (4.5%), low (32.7%), or intermediate (22.7%) in terms of malignant potential. R0 resection was achieved in 89.1% of cases. Observed 2-year and 5-year recurrence rates were significantly lower than those predicted by the Memorial Sloan Kettering Cancer Center nomogram (7.6% vs. 19.3% and 18.4% vs. 27.0%); however, it was the most favorable tool compared to the US National Institutes of Health (NIH)-consensus (P = 0.0017) and modified NIH-consensus (P < 0.001), with a concordance index of 0.811. CONCLUSION:Development of a novel predictive tool that includes additional prognostic factors may better stratify recurrence following resection for GIST.
journal_name
J Surg Oncoljournal_title
Journal of surgical oncologyauthors
Racz JM,Brar SS,Cleghorn MC,Jimenez MC,Azin A,Atenafu EG,Jackson TD,Okrainec A,Quereshy FAdoi
10.1002/jso.23839subject
Has Abstractpub_date
2015-03-15 00:00:00pages
371-6issue
4eissn
0022-4790issn
1096-9098journal_volume
111pub_type
杂志文章abstract:BACKGROUND AND OBJECTIVES:Surgical procedures can cause tumor cells to disseminate into the circulatory system. Although this spread of metastatic cells will be limited by immune activity, immunosuppression tends to be the main effect resulting from surgery. The objective of this study is to assess hormonal and immunol...
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abstract:BACKGROUND:Identification of peri-operative variables predicting postoperative morbidity may improve postoperative patients' care. We aimed to identify patients' characteristics and operative factors predictive of early (≤ 30-day) and late (≤ 6-month) morbidity in cervical cancer patients undergoing surgery plus extern...
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abstract::The human tumor stem cell assay (HTSCA) was applied to 103 primary and metastatic colorectal carcinomas. Thirty-four carcinomas could not be evaluated for colony formation (clonogenicity) because of microbial contamination. Of the remaining 69 carcinomas, 18 (26%) demonstrated clonal growth in vitro. Colony formation ...
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abstract::We present a review of the incidence, differential diagnoses, mechanism of rupture, laboratory findings, and signs and symptoms of splenic rupture in leukemia. The types of leukemia most often associated with ruptured spleen are described. The treatment of splenic rupture in leukemia is splenectomy, with careful evalu...
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abstract:BACKGROUND:The aim of this study is to investigate clinical significance of miR-155 expression in breast cancer. METHODS:TaqMan real-time RT-PCR was performed to detect miR-155 expression in breast cancer tissues. The correlation of miR-155 expression with clinicopathological factors and prognosis of breast cancer pat...
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abstract:BACKGROUND:The role of surgical resection in the treatment of patients with metastatic/recurrent gastrointestinal stromal tumors (GIST) is unclear. The aim of this study was to identify preoperative factors associated with oncologic outcomes for recurrent/metastatic GIST after tyrosine kinase inhibitor (TKI) therapy. ...
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abstract::A patient-specific 3-dimensional printed model (3DPM) of a woman with breast cancer was created. Mastectomy was favored as BCS would necessitate significant breast size alteration due to the extent of disease. After review of the 3D printed model, the patient and surgeon agreed on breast-conserving surgery. Use of pat...
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abstract:BACKGROUND:Angiosarcoma is an aggressive vascular neoplasm with a high propensity for local recurrence. Electrochemotherapy is an emerging skin-directed therapy, exerting prominent cytotoxic activity, and antivascular effects. Its efficacy in angiosarcoma has not been investigated. METHODS:This multicenter retrospecti...
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abstract:BACKGROUND:Radical surgery is the only curative treatment for carcinoma of gallbladder. This study aimed to evaluate the outcome of patients with carcinoma of gallbladder managed in a single institution over 16 years. METHODS:From April 1988 to November 2003, 86 patients (29 males, 57 females) were diagnosed to have c...
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abstract::Over the past decade, there has been a considerable increase in the utilization of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in the management of patients with peritoneal metastases. This is due to improved safety and favorable oncologic outcomes, including curative potential. C...
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abstract:BACKGROUND:Extrapleural pneumonectomy for malignant pleural mesothelioma is considered an aggressive procedure, but symptomatic and quality of life changes are unknown. METHODS:Between 1997 and 2004, 16 consecutive patients underwent extrapleural pneumonectomy for mesothelioma followed by chemo-radiotherapy. Tumor-rel...
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