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Nieder C, Hintz M, Popp I, Bilger A, Grosu AL. Validation of the graded prognostic assessment for gastrointestinal cancers with brain metastases (GI-GPA). Radiat Oncol 2020; 15:35. [PMID: 32054485 PMCID: PMC7020357 DOI: 10.1186/s13014-020-1484-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/04/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The purpose of this study was to validate a new prognostic model (GI-GPA) originally derived from a multi-center database (USA, Canada, Japan). PATIENTS AND METHODS This retrospective study included 92 German and Norwegian patients treated with individualized approaches, always including brain radiotherapy. Information about age, extracranial spread, number of brain metastases, performance status and other variables was collected. The GI-GPA score was calculated as described by Sperduto et al. RESULTS: Median survival was 4 months. The corresponding figures for the 4 different prognostic strata were 2.3, 4.4, 9.4 and 12.7 months, respectively (p = 0.0001). Patients whose management included surgical resection had longer median survival than those who were treated with other approaches (median 11.9 versus 3.0 months, p = 0.002). Comparable results were seen for additional systemic therapy (median 8.5 versus 3.5 months, p = 0.01). CONCLUSION These results confirm the validity of the GI-GPA in an independent dataset from a different geographical region, despite the fact that overall survival was shorter in all prognostic strata, compared to Sperduto et al. Potential explanations include differences in molecular tumor characteristics and treatment selection, both brain metastases-directed and extracranially. Long-term survival beyond 5 years is possible in a small minority of patients.
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Affiliation(s)
- Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092, Bodø, Norway. .,Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, 9037, Tromsø, Norway.
| | - Mandy Hintz
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany
| | - Ilinca Popp
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
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The Choice of Local Treatment Modalities for Patients with Brain Metastases from Digestive Cancers. JOURNAL OF ONCOLOGY 2019; 2019:1568465. [PMID: 31871456 PMCID: PMC6907058 DOI: 10.1155/2019/1568465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/13/2019] [Indexed: 11/17/2022]
Abstract
Background Brain metastases (BMs) from digestive cancers are rare; therefore, no optimal treatment modality has been defined. Methods We retrospectively reviewed the clinical data of 68257 patients with digestive cancers. Propensity score matching (PSM) was used to balance patient backgrounds between groups. Survival differences between different treatment modalities were compared. Univariate and multivariate Cox proportional hazards models were performed to identify prognostic factors on overall survival (OS). Results 270 patients with BM entered the study. In the entire group, the median survival time after diagnosis of brain metastases was 10.25 months (95% CI: 8.41–12.09 months); local treatment could significantly prolong OS (respectively, P < 0.01; even after PSM, P < 0.01); combination treatment was more effective than single treatment modality (respectively, P < 0.01; even after PSM, P < 0.01). However, each combination modality was identically effective (P > 0.05). When patients were divided into three groups based on 1, 2-3, or more than 3 metastatic lesion(s), same results were identified between local treatment and without local treatment (1 lesion, P < 0.01; 2-3 lesions, P < 0.01; more than 3 lesions, P < 0.01, respectively) and combination and single treatment (P < 0.01, P=0.02, P=0.03, respectively). However, there was no difference between different combined treatments (P > 0.05). Multivariate analysis revealed that performance status (P < 0.01), presence of extracranial metastasis (P=0.04), number of BM (P < 0.01), and local treatment for BM (P < 0.01) were independent prognostic factors. Conclusions Regardless of the number of brain lesions, local treatment achieved higher overall survival times than no local treatment, and combination therapy could offer survival benefit to patients as compared with single therapy.
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Mege D, Sans A, Ouaissi M, Iannelli A, Sielezneff I. Brain metastases from colorectal cancer: characteristics and management. ANZ J Surg 2017; 88:140-145. [PMID: 28687024 DOI: 10.1111/ans.14107] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/05/2017] [Accepted: 05/14/2017] [Indexed: 02/01/2023]
Abstract
BACKGROUND Brain metastases (BMs) are the most common intracranial neoplasms in adults, but they rarely arise from colorectal cancer (CRC). The objective of this study was to report an overview of the characteristics and current management of CRC BMs. METHODS A systematic review on CRC BMs was performed using Medline database from 1983 to 2015. The search was limited to studies published in English. Review articles, not relevant case report or studies or studies relating to animal and in vitro experiments were excluded. RESULTS BMs occurred in 0.06-4% of patients with CRC. Most BMs were metachronous and were associated with lung (27-92%) and liver (12-80%) metastases. Treatment options depended on the number of BMs, the general conditions of the patient and the presence of other metastases. Most frequent treatment was whole-brain radiotherapy (WBRT) alone (36%), with median overall survival comprised between 2 and 9 months. Median overall survival was better after surgery alone (from 3 to 16.2 months), or combined with WBRT (from 7.6 to 14 months). After stereotactic radiosurgery alone, overall survival could reach 9.5 months. Many favourable prognostic factors were identified, such as high Karnofsky performance status, low recursive partitioning analysis classes, lack of extracranial disease, low number of BMs and possibility to perform surgical treatment. CONCLUSION BMs from CRC are rare. In the presence of favourable prognostic factors, an aggressive management including surgical resection with or without WBRT or stereotactic radiosurgery can improve the overall survival.
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Affiliation(s)
- Diane Mege
- Department of Digestive and General Surgery, Timone Hospital, Aix-Marseille University, Marseille, France
| | - Arnaud Sans
- Department of Digestive and General Surgery, Timone Hospital, Aix-Marseille University, Marseille, France
| | - Mehdi Ouaissi
- Department of Digestive Surgery, University of Tours, Tours, France
| | - Antonio Iannelli
- Department of Digestive Surgery, Archet II Hospital, University of Nice-Sophia-Antipolis, Nice, France
| | - Igor Sielezneff
- Department of Digestive and General Surgery, Timone Hospital, Aix-Marseille University, Marseille, France
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Christensen TD, Palshof JA, Larsen FO, Høgdall E, Poulsen TS, Pfeiffer P, Jensen BV, Yilmaz MK, Christensen IJ, Nielsen D. Risk factors for brain metastases in patients with metastatic colorectal cancer. Acta Oncol 2017; 56:639-645. [PMID: 28447565 DOI: 10.1080/0284186x.2017.1290272] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Brain metastases (BM) from colorectal cancer (CRC) are rare, but the incidence is suspected to rise as treatment of metastatic (m) CRC improves. The aim of this study was to identify possible biological and clinical characteristics at initial presentation of mCRC that could predict later risk of developing BM. Furthermore, we wished to estimate the incidence of BM in long-term surviving patients. MATERIAL AND METHODS We conducted a retrospective study on a Danish multicenter cohort of patients with mCRC who received cetuximab and irinotecan (CetIri) as third-line treatment. All patients had previously progression on 5-FU, irinotecan and oxaliplatin containing regimens and received CetIri treatment independent of RAS mutations status. We subsequently performed KRAS, NRAS, BRAF, PIK3CA, PTEN, ERBB2 and EGFR sequencing of DNA extracted from primary tumor tissue. RESULTS Totally, 480 patients were included in our study. BM were diagnosed in 42 [8.8%; 95% confidence interval (CI) 6.4-11.6%] patients. Patients with BM had a significantly longer survival from mCRC diagnosis than non-BM patients (median = 32 versus 28 months, p = 0.001). On univariate cox regression analysis, the risk of developing BM was significantly increased in patients with rectal cancer (HR = 3.9; 95% CI = 1.2-13.3), metachronous metastatic disease (HR = 2.3; 95% CI = 1.2-4.4) and lung metastases (HR = 4.2; 95% CI = 2.2-7.9). On multivariate cox regression analysis only lung metastases were significantly associated BM (HR = 3.5; 95% CI = 1.8-6.8). None of the investigated mutations were associated with BM. CONCLUSION The incidence of BM was 8.8% in patients with mCRC who received third-line therapy. The most important risk factor for developing BM was lung metastases. Furthermore, rectal cancer, metachronous metastatic disease and long survival were linked to BM development.
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Affiliation(s)
| | - Jesper Andreas Palshof
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Finn Ole Larsen
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Estrid Høgdall
- Department of Pathology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Tim Svenstrup Poulsen
- Department of Pathology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Per Pfeiffer
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Benny Vittrup Jensen
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | | | - Ib Jarle Christensen
- Department of Pathology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Dorte Nielsen
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
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Christensen TD, Spindler KLG, Palshof JA, Nielsen DL. Systematic review: brain metastases from colorectal cancer--Incidence and patient characteristics. BMC Cancer 2016; 16:260. [PMID: 27037031 PMCID: PMC4818396 DOI: 10.1186/s12885-016-2290-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 03/22/2016] [Indexed: 02/07/2023] Open
Abstract
Background Brain metastases (BM) from colorectal cancer (CRC) are a rare event. However, the implications for affected patients are severe, and the incidence has been reported to be increasing. For clinicians, knowledge about the characteristics associated with BM is important and could lead to earlier diagnosis and improved survival. Method In this paper, we describe the incidence as well as characteristics associated with BM based on a systematic review of the current literature, following the PRISMA guidelines. Results We show that the incidence of BM in CRC patients ranges from 0.6 to 3.2 %. BM are a late stage phenomenon, and young age, rectal primary and lung metastases are associated with increased risk of developing BM. Molecular markers such as KRAS, BRAF, NRAS mutation as well as an increase in CEA and CA19.9 levels are suggested predictors of brain involvement. However, only KRAS mutations are reasonably well investigated and associated with an increased risk of BM. Conclusion The incidence of BM from CRC is 0.6 to 3.2 % and did not seem to increase over time. Development of BM is associated with young age, lung metastases, rectal primary and KRAS mutation. Increased awareness of brain involvement in patients with these characteristics is necessary.
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Affiliation(s)
- Troels Dreier Christensen
- Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark.
| | | | - Jesper Andreas Palshof
- Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark
| | - Dorte Lisbet Nielsen
- Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark
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Nieder C, Hintz M, Grosu AL. Predicted survival in patients with brain metastases from colorectal cancer: Is a current nomogram helpful? Clin Neurol Neurosurg 2016; 143:107-10. [PMID: 26914143 DOI: 10.1016/j.clineuro.2016.02.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/15/2016] [Accepted: 02/16/2016] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To examine the clinical applicability of a new nomogram by comparing survival of patients with brain metastases from colorectal cancer treated with surgery and/or radiotherapy in the authors' institutions with nomogram-predicted median survival. METHODS Retrospective analysis of 64 patients treated with comparable approaches and during the same time period as the patients in the nomogram study. Points were assigned for age, performance status, number and site of brain metastases, as required for nomogram use. RESULTS In 46 patients (72%), the observed survival was shorter than the predicted median. The median deviation was -1.4 months. The nomogram underestimated the survival of patients treated with radiosurgery/surgery by a median of 4.2 months, whereas it overestimated the survival of patients treated with whole-brain radiotherapy (WBRT) by a median of 2.1 months (p=0.0001). Nevertheless, all 5 patients with predicted median survival ≤3 months died within 3 months. Among 8 patients with predicted median survival >12 months, 6 (75%) survived for >12 months. Not all prognostic factors in the nomogram correlated with survival. In the multivariate Cox model, only performance status and number of brain metastases were significant, both with p=0.0001. CONCLUSION Despite differences in prognostic factors and survival of many individual patients, especially those with intermediate prognosis, the nomogram performed promising in poor- and good-prognosis patients. Evaluation of separate prediction tools for patients treated with WBRT and more aggressive local approaches appears warranted in order to minimize the influence of better local control of the brain metastases.
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Affiliation(s)
- Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, Bodø, Norway; Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway.
| | - Mandy Hintz
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
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Colorectal cancer metastatic to the brain: analysis of prognostic factors and impact of KRAS mutations on presentation and outcome. Clin Transl Oncol 2015; 18:88-92. [PMID: 26260912 DOI: 10.1007/s12094-015-1340-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 06/26/2015] [Indexed: 02/01/2023]
Abstract
BACKGROUND Treatment concepts for metastatic colorectal cancer continue to evolve. While the presence of RAS mutations impacts systemic therapy, little is known about the influence of such mutations in patients with brain metastases. PATIENTS AND METHODS Pooled retrospective analysis was conducted of 57 patients with brain metastases from colorectal cancer treated in two different institutions (2005-2013). RESULTS The only mutations analyzed in a relatively large subgroup were KRAS mutations (14 wild type, 12 mutated). Mutation status was not associated with baseline characteristics such as number or location of metastases, and did not impact prognosis. Three factors were significantly associated with survival in multivariate analysis: Karnofsky Performance Status (KPS), management strategy, and systemic treatment. Median survival was 0.6 months with best supportive care, 3.0 months with initial whole-brain radiotherapy (WBRT), and 12.7 months if initial treatment included surgery or stereotactic radiosurgery (SRS), p = 0.0001. The survival difference between the WBRT and surgery/SRS groups was largest in patients with KPS 80-100. CONCLUSION Effective local treatment was a prerequisite for improved survival. The only significant prognostic baseline factor was KPS, which forms the basis of the diagnosis-specific graded prognostic assessment (DS-GPA) score. Thus, our results validate the DS-GPA in this patient population. So far, neither this nor other studies suggest a clinically important impact of KRAS mutations beyond their previously reported association with development of brain metastases. Studies focusing on patients who develop brain metastases early during the course of metastatic disease might be warranted, because the influence of different systemic therapies might be larger in this subgroup.
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8
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Patients with brain metastases derived from gastrointestinal cancer: clinical characteristics and prognostic factors. Clin Transl Oncol 2015; 18:93-8. [DOI: 10.1007/s12094-015-1341-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 06/26/2015] [Indexed: 11/30/2022]
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Lemke J, Scheele J, Kapapa T, von Karstedt S, Wirtz CR, Henne-Bruns D, Kornmann M. Brain metastases in gastrointestinal cancers: is there a role for surgery? Int J Mol Sci 2014; 15:16816-30. [PMID: 25247579 PMCID: PMC4200819 DOI: 10.3390/ijms150916816] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 09/11/2014] [Accepted: 09/15/2014] [Indexed: 12/15/2022] Open
Abstract
About 10% of all cancer patients will develop brain metastases during advanced disease progression. Interestingly, the vast majority of brain metastases occur in only three types of cancer: Melanoma, lung and breast cancer. In this review, we focus on summarizing the prognosis and impact of surgical resection of brain metastases originating from gastrointestinal cancers such as esophageal, gastric, pancreatic and colorectal cancer. The incidence of brain metastases is <1% in pancreatic and gastric cancer and <4% in esophageal and colorectal cancer. Overall, prognosis of these patients is very poor with a median survival in the range of only months. Interestingly, a substantial number of patients who had received surgical resection of brain metastases showed prolonged survival. However, it should be taken into account that all these studies were not randomized and it is likely that patients selected for surgical treatment presented with other important prognostic factors such as solitary brain metastases and exclusion of extra-cranial disease. Nevertheless, other reports have demonstrated long-term survival of patients upon resection of brain metastases originating from gastrointestinal cancers. Thus, it appears to be justified to consider aggressive surgical approaches for these patients.
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Affiliation(s)
- Johannes Lemke
- Clinic of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
| | - Jan Scheele
- Clinic of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
| | - Thomas Kapapa
- Clinic of Neurosurgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
| | - Silvia von Karstedt
- UCL Cancer Institute, University College London, 72 Huntley Street, London WC1E 6DD, UK.
| | - Christian Rainer Wirtz
- Clinic of Neurosurgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
| | - Doris Henne-Bruns
- Clinic of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
| | - Marko Kornmann
- Clinic of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm 89071, Germany.
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Gazzeri R, Nalavenkata S, Teo C. Minimally invasive key-hole approach for the surgical treatment of single and multiple brain metastases. Clin Neurol Neurosurg 2014; 123:117-26. [DOI: 10.1016/j.clineuro.2014.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 05/13/2014] [Accepted: 05/18/2014] [Indexed: 10/25/2022]
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Prognostic factors and treatment effects in patients with curatively resected brain metastasis from colorectal cancer. Dis Colon Rectum 2014; 57:56-63. [PMID: 24316946 DOI: 10.1097/01.dcr.0000436998.30504.98] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Colorectal cancer infrequently causes brain metastasis, and the prognosis is poor. OBJECTIVE The aim of this study was to identify the prognostic factors associated with survival and outcome of treatment for patients with brain metastasis from colorectal cancer. DESIGN This is a retrospective study from a prospectively collected database. SETTINGS The investigation took place in a high-volume multidisciplinary tertiary cancer center in Japan. PATIENTS From 1979 to 2010, 113 consecutive patients who were treated for brain metastasis from colorectal cancer were identified. MAIN OUTCOME MEASURES The primary outcome measure was overall survival. RESULTS Sixty-three patients had neurosurgical resection (including curative resection for 46 patients) followed by whole brain radiotherapy, 9 had stereotactic radiosurgery, 30 had whole brain radiotherapy, and 11 had steroid and palliative care. As a whole, the overall median survival time from diagnosis of brain metastasis was 5.4 months (95% CI, 4.3-7.6 months), and the 1-year survival rate was 29% (95% CI, 22%-38%). In the group of patients who underwent curative neurosurgical resection, the overall median survival time was 15.2 months (95% CI, 9.2-17.8 months), and the 1-year survival rate was 57% (95% CI, 43%-71%). On multivariate analysis, 1 or 2 brain metastatic lesions, no extracranial metastatic lesions, and neurosurgical resection were independent favorable prognostic factors overall (p = 0.0057, 0.0197, and <0.0001), and 1 or 2 brain metastatic lesions, no extracranial metastatic lesion, and no emergence of secondary brain metastatic lesions were independent favorable prognostic factors in the group of patients who underwent curative neurosurgical resection (p = 0.0137, 0.0081, and 0.0010). LIMITATIONS This study was limited by its single-institute, retrospective, nonrandomized design and selection bias. CONCLUSIONS Neurosurgical resection in select patients is a reasonable option for brain metastasis from colorectal cancer, although it is not associated with long-term (5-year) survival. (see Video, Supplemental Digital Content 1, http://links.lww.com/DCR/A121 ).
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Kim HJ, Huh JW, Jung TY, Kim IY, Kim HR, Jung S, Kim YJ. Clinical outcome with gamma-knife surgery or surgery for brain metastases from colorectal cancer. J Clin Neurosci 2013; 20:1417-21. [PMID: 23910824 DOI: 10.1016/j.jocn.2012.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 10/24/2012] [Accepted: 12/01/2012] [Indexed: 01/08/2023]
Abstract
The aim of this study was to investigate the clinical outcomes after gamma knife surgery (GKS) or surgery as the first treatment for brain metastases in colorectal cancer (CRC). Of the 4350 patients diagnosed with CRC at our institution identified from 1987 to 2009, 27 patients who underwent GKS (GKS group) and 11 who underwent surgery (surgery group) were included. The oncologic outcomes were compared between the two groups. Local control was significantly better in the surgery group than in the GKS group (90% versus [vs.] 71.4%, respectively; p=0.006). The rate of symptom relief after 3 months was significantly higher in the surgery group than in the GKS group (72.7 vs.18.5%, respectively; p=0.005). The median survival after GKS was 5.6 months and surgery was 16.2 months. In multivariate analysis, controlled primary tumor (p=0.038) and solitary metastasis (p=0.028) were correlated with prolonged overall survival, whereas surgery (p=0.034) was associated with longer local control. Surgery for brain metastasis from CRC is more advantageous in local control and neurologic symptom palliation than GSK. In multivariate analysis, overall survival was associated with controlled primary tumor and solitary metastasis.
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Affiliation(s)
- Hun Jin Kim
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, Gwangju, Republic of Korea
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13
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McDermott R, Gabikian P, Sarvaiya P, Ulasov I, Lesniak MS. MicroRNAs in brain metastases: big things come in small packages. J Mol Med (Berl) 2012; 91:5-13. [PMID: 23138927 DOI: 10.1007/s00109-012-0971-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 10/12/2012] [Accepted: 10/12/2012] [Indexed: 01/04/2023]
Abstract
Metastatic brain tumors provide a formidable obstacle in the survival of affected cancer patients, an obstacle that current treatment is essentially ineffective against. Our understanding of the metastatic cascade has demonstrated the role of incorrectly regulated protein expression and proved it to be a crucial component of this process. Recently, molecular studies have emphasized the role of microRNAs, small non-coding RNAs that alter protein expression, in the regulation of both normal and abnormal biological processes, including cancer and its metastasis to the brain. Furthermore, studies have demonstrated the ability to distinguish normal from cancerous cells, primary from secondary brain tumors, and correctly categorize metastatic brain tumor tissue of origin based solely on microRNA profiles. Interestingly, manipulation of microRNAs has proven effective in cancer treatment. With the promise of reduced toxicity, increased efficacy, and individually directed therapy, using microRNA in the treatment of metastatic brain tumors may prove very useful. In this review, we focus on the multiple potential microRNA targets for the treatment of metastatic brain lesions as well as current and future directions for its use in gene therapy.
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Affiliation(s)
- Ryan McDermott
- The Brain Tumor Center, The University of Chicago, 5841 South Maryland Ave, M/C 3026, Chicago, IL 60637, USA
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14
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Kye BH, Kim HJ, Kang WK, Cho HM, Hong YK, Oh ST. Brain metastases from colorectal cancer: the role of surgical resection in selected patients. Colorectal Dis 2012; 14:e378-85. [PMID: 22288509 DOI: 10.1111/j.1463-1318.2012.02962.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIM Brain metastasis is infrequent in colorectal cancer patients, and the prognosis is poor. In this retrospective study survival and prognostic factors were determined in patients with brain metastasis from colorectal cancer. METHOD Between 1997 and 2006, 39 patients with brain metastasis from colorectal cancer who survived more than 1 month were identified. Data were collected with regard to patient characteristics, location and stage of the primary tumour, extent and location of metastatic disease, and treatment modalities used. RESULTS Most (79.5%) patients had pulmonary metastases before brain metastasis, and the brain was the site of solitary metastasis in only one patient. The most frequent symptom was weakness [18 (43.6%) patients]. Overall median survival was 5.0 months and the 1- and 2-year survival rates were 21.8 and 9.1%, respectively. Univariate analysis revealed uncontrolled extracranial metastases (P = 0.019), multiple brain lesions (P = 0.026), bilateral brain metastases (P = 0.032) and serum carcinoembryonic antigen levels greater than 5 ng/ml (P = 0.008) to be poor prognostic factors. The median survival after the diagnosis of brain metastasis was significantly longer in patients who underwent surgical resection (15.2 ± 8.0 months) than in those treated by other modalities (P = 0.001). Treatment modality was the only independent prognostic factor for overall survival in patients with brain metastases from colorectal cancers (P = 0.015). CONCLUSION Aggressive surgical resection in selected patients with brain metastases from colorectal cancer may prolong survival, even in the presence of extracranial metastatic lesions.
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Affiliation(s)
- B-H Kye
- Department of Surgery, St Vincent's Hospital, Suwon, Korea
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Gamma knife surgery of colorectal brain metastases: a high prescription dose of 25 Gy may improve growth control. World Neurosurg 2012; 79:525-36. [PMID: 22120263 DOI: 10.1016/j.wneu.2011.09.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 06/24/2011] [Accepted: 09/04/2011] [Indexed: 11/21/2022]
Abstract
OBJECTIVE There are few reports on the effect of gamma knife surgery (GKS) for brain metastases from colorectal cancer. The purpose of this study was to identify prognostic factors for local control, complications, and survival in our series of patients treated with GKS. METHODS Eighty patients (36 males, 44 females) with 140 metastases who received GKS between 1996 and 2008 were retrospectively reviewed. The mean tumor volume was 6.13 (0.01-35.5) cm(3); the prescription dose was 21.1 (10-25.1) Gy and the maximum dose 42.7 (17.2-66.7) Gy; and the tumor cover was 95.0% (72%-100%). RESULTS Growth control was achieved in 93 of 121 tumors (76.9%) and 42 of 68 (61.8%) patients, while treatment failure was seen in 28 of 121 tumors (23.1%). Local control was better if a high prescription dose of 25 Gy was used, 88.4% vs. 71.4% (P = 0.017), or if tumor volume was <5 cm(3) (86.4%), compared with 69.9% for 5-20 cm(3) and 51.9% for >20 cm(3) (P = 0.002). The hazard ratio for local failure with lower prescription doses was 2.8 (P = 0.026) in the unadjusted, and 8.5 (P = 0.055) in the adjusted multivariate analysis (tumor volumes >5 cm(3)). The median survival was 6 months (range 0-75) after GKS. Age <70 years (P < 0.001) and high RPA class (P = 0.032) were associated with longer survival. Fifteen patients (22.1%) had persistent edema on follow-up MRI, possibly because of radiation damage to the tumor. Radiation-induced edema was asymptomatic in 93.8%. We found neither a decrease in the incidence of new metastases nor improved survival when whole-brain radiation therapy was given prior to GKS. CONCLUSIONS GKS provides reasonable local tumor control. Local control rate is highest if the margin dose is 25 Gy and the tumor volume <5 cm(3). Radiation edema was common but rarely symptomatic. Survival is longest for young, well-functioning patients.
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Brain metastases from colorectal carcinoma: a description of 60 cases in a single Chinese cancer center. Tumour Biol 2011; 32:1249-56. [PMID: 21913132 DOI: 10.1007/s13277-011-0229-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 08/18/2011] [Indexed: 01/10/2023] Open
Abstract
The incidence of brain metastasis (BM) from colorectal carcinoma (CRC) is increasing. The objectives of the present study were to explore the clinical characteristics and potential prognostic factors in CRC patients with BM. Between April 1991 and December 2010, all CRC patients treated in the Sun Yat-sen University Cancer Center were retrospectively reviewed and 60 patients were identified to have BM (36 males and 24 females). The association between patients and their tumor characteristics, treatment modality, and survival were statistically analyzed. The median age at diagnosis of BM was 62.5 years. Fifty-three patients (88.3%) developed extracranial metastases at diagnosis of BM. The cause of death was systemic disease in 19 patients and neurological disease in 23 patients. Brain metastases were primarily treated with either whole brain radiation therapy (WBRT; 15 patients), stereotactic radiosurgery (SRS; nine patients), or surgical resection (seven patients). Ten patients received WBRT and SRS, and 19 patients (31.7%) were treated with steroids alone. The median survival after diagnosis of BM was 8 months (95% confidence interval = 4.2-11.8 months). Recursive partitioning analysis (RPA) class, the number of brain lesions, and treatment modality type were significantly associated with survival. Although BM from CRC is a late-stage phenomenon with an extremely poor prognosis, some subsets of patients would benefit from a multidisciplinary management strategy. A low RPA class and a limited number of brain lesions may predict increased survival after therapy for CRC patients with BM.
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Jung M, Ahn JB, Chang JH, Suh CO, Hong S, Roh JK, Shin SJ, Rha SY. Brain metastases from colorectal carcinoma: prognostic factors and outcome. J Neurooncol 2010; 101:49-55. [PMID: 20467783 DOI: 10.1007/s11060-010-0214-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2010] [Accepted: 04/14/2010] [Indexed: 12/15/2022]
Abstract
Brain metastases from colorectal carcinoma (CRC) are rare. The objectives of this study are to assess the natural history, outcome, and possible prognostic factors in CRC patients with brain metastases. Between 1995 and 2008, 8,732 patients with CRC were treated at Yonsei University Health System. Brain metastases were found in 1.4% of these patients. Retrospective review and statistical analysis of these 126 patients were performed. Median time from diagnosis of metastatic CRC (mCRC) to brain metastases was 9.0 months (range 0-85 months), and 14 patients (11.1%) had brain involvement as their initial presentation. Among the 126 patients, 91.3% had other systemic metastases; the most common extracranial metastatic site was lung (72.2%). Median follow-up duration was 6.1 months (range 0.1-90.3 months), and median survival after diagnosis of brain metastases was 5.4 months [95% confidence interval (CI) 3.9-6.9 months]. Median survival time after diagnosis of brain metastases was 1.5 months for patients who received only steroids (15.9%), 4.0 months for those who received whole-brain radiation therapy (37.5%), 9.5 months for those who received gamma-knife surgery (GKS) (32.5%), and 11.5 months for those who underwent surgery (20%) (P < 0.001). On multivariate analysis, recursive partitioning analysis (RPA) class and amount of chemotherapy before brain metastasis were independent prognostic factors for survival. Overall prognosis of patients with brain metastases from CRC is poor. Nevertheless, patients with low RPA class, or those with previous less chemotherapy showed good prognosis, indicating that proper treatment may result in improved survival time.
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Affiliation(s)
- Minkyu Jung
- Yonsei University Health System, Seoul, Korea
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