The Role of Postoperative Radiotherapy after Resection of Single Brain Metastases

Neurosurgery ◽  
1989 ◽  
Vol 24 (6) ◽  
pp. 798-805 ◽  
Author(s):  
Lisa M. DeAngelis ◽  
Lynda R. Mandell ◽  
H. Tzvi Thaler ◽  
David W. Kimmel ◽  
Joseph H. Galicich ◽  
...  

ABSTRACT To assess the value of whole brain radiotherapy (WBRT) after complete resection of a single brain metastasis we reviewed the records of 98 patients who had elective craniotomy between 1978 and 1985. Seventy-nine patients received postoperative WBRT (Group A) and 19 patients no radiotherapy (RT) (Group B). Neurological relapse was designated as local (i.e., at the site of the original metastasis) or distant (i.e., elsewhere in the brain). Postoperative WBRT significantly prolonged the time to any neurological relapse (P = 0.034) with a 1-year recurrence rate of 22% in Group A and 46% in Group B patients; however, it did not specifically control either local or distant cerebral recurrence. Recurrence of metastatic brain disease was not affected by location of the original lesion; however, meningeal relapse occurred in 38% of cerebellar lesions, but only in 4.7% of supratentorial metastases (P = 0.003). The total radiation dose or fractionation scheme of RT did not affect survival nor time to neurological relapse. The median survival was 20.6 and 14.4 months for Groups A and B, respectively (not statistically different). Forty-eight percent of Group A and 47% of Group B patients survived for 1 year or longer; however, 11% of patients who had received RT and survived 1 year developed severe radiation-induced dementia. All patients with radiation-related cerebral damage received hypo-fractionated RT with high daily fractions as commonly designed for rapid palliation of macroscopic brain metastases. Thus, postoperative WBRT may be an important adjunct to complete resection of a single brain metastasis, particularly in patients with limited or no systemic disease who have the potential for long-term survival or even cure, but it carries a substantial risk of late neurological toxicity when hypofractionated RT schedules are used. For these good-risk patients, postoperative WBRT should be administered by standard fractionation schemes of 180 to 200 cGy/day to a total of 4000 to 4500 cGy, or hyperfractionation, which provides even lower doses/fraction to minimize potential neurotoxicity while delivering a maximally efficacious total dose, should be considered.

Neurosurgery ◽  
1991 ◽  
Vol 28 (2) ◽  
pp. 201-205 ◽  
Author(s):  
Yukitaka Ushio ◽  
Norio Arita ◽  
Toru Hayakawa ◽  
Heitaro Mogami ◽  
Hiroshi Hasegawa ◽  
...  

Abstract A controlled randomized study was carried out to evaluate the effects of chemotherapy in patients with brain metastases from lung carcinoma. One hundred patients were randomly divided into three groups at the time of diagnosis or after surgery for metastases. Group A received radiotherapy alone; Group B received radiotherapy and chloroethylnitrosoureas (methyl-CCNU, 100-120 mg/m2, or ACNU 80-100 mg/m2, every 6-8 weeks), and Group C received radiotherapy and a combination of chloroethylnitrosoureas and tegafur (300 mg/m2. daily). Of the 100 patients, 88 could be evaluated. The reduction rates of the tumors of the patients in whom tumor was not surgically removed or not totally removed were compared. Complete resolution of the tumor was noted in 29, 69, and 63% of the patients in Groups A, B, and C, respectively, Tumor regression of ⩾50% was seen in 36, 69. and 74% of the patients in Groups A, B, and C, respectively. The difference in the response rates of Groups A and C was statistically signficiant (P<0.05). Median survival after the start of treatment for brain metastasis was 27, 30.5, and 29 weeks in Groups A, B, and C, respectively. There was 1 long-term survivor (more than 5 years) in Group A, 3 in Group B, and 1 in Group C. The main cause of death was deterioration attributable to the primary lesion or systemic metastasis, and no statistical difference was noted in survival time among the groups. Our results indicate that combination chemotherapy with chloroethylnitrosoureas and tegafur has an additive effect on radiotherapy in reducing or eliminating brain metastases from lung carcinoma, and that brain metastasis is well controlled by multidisciplinary treatment including chemotherapy.


2016 ◽  
Vol 126 (6) ◽  
pp. 1749-1755 ◽  
Author(s):  
David R. Raleigh ◽  
Zachary A. Seymour ◽  
Bryan Tomlin ◽  
Philip V. Theodosopoulos ◽  
Mitchel S. Berger ◽  
...  

OBJECTIVEStereotactic radiosurgery (SRS) with or without whole-brain radiotherapy can be used to achieve local control (> 90%) for small brain metastases after resection. However, many brain metastases are unsuitable for SRS because of their size or previous treatment, and whole-brain radiotherapy is associated with significant neurocognitive morbidity. The purpose of this study was to investigate the efficacy and toxicity of surgery and iodine-125 (125I) brachytherapy for brain metastases.METHODSA total of 95 consecutive patients treated for 105 brain metastases at a single institution between September 1997 and July 2013 were identified for this analysis retrospectively. Each patient underwent MRI followed by craniotomy with resection of metastasis and placement of 125I sources as permanent implants. The patients were followed with serial surveillance MRIs. The relationships among local control, overall survival, and necrosis were estimated by using the Kaplan-Meier method and compared with results of log-rank tests and multivariate regression models.RESULTSThe median age at surgery was 59 years (range 29.9–81.6 years), 53% of the lesions had been treated previously, and the median preoperative metastasis volume was 13.5 cm3 (range 0.21–76.2 cm3). Gross-total resection was achieved in 81% of the cases. The median number of 125I sources implanted per cavity was 28 (range 4–93), and the median activity was 0.73 mCi (range 0.34–1.3 mCi) per source. A total of 476 brain MRIs were analyzed (median MRIs per patient 3; range 0–22). Metastasis size was the strongest predictor of cavity volume and shrinkage (p < 0.0001). Multivariable regression modeling failed to predict the likelihood of local progression or necrosis according to metastasis volume, cavity volume, or the rate of cavity remodeling regardless of source activity or previous SRS. The median clinical follow-up time in living patients was 14.4 months (range 0.02–13.6 years), and crude local control was 90%. Median overall survival extended from 2.1 months in the shortest quartile to 62.3 months in the longest quartile (p < 0.0001). The overall risk of necrosis was 15% and increased significantly for lesions with a history of previous SRS (p < 0.05).CONCLUSIONSTherapeutic options for patients with large or recurrent brain metastases are limited. Data from this study suggest that resection with permanent 125I brachytherapy is an effective strategy for achieving local control of brain metastasis. Although metastasis volume significantly influences resection cavity size and remodeling, volumetric parameters do not seem to influence local control or necrosis. With careful patient selection, this treatment regimen is associated with minimal toxicity and can result in long-term survival for some patients.▪ CLASSIFICATION OF EVIDENCE Type of question: therapeutic; study design: retrospective case series; evidence: Class IV.


1994 ◽  
Vol 12 (11) ◽  
pp. 2340-2344 ◽  
Author(s):  
J G Armstrong ◽  
M Wronski ◽  
J Galicich ◽  
E Arbit ◽  
S A Leibel ◽  
...  

PURPOSE Although resection of single brain metastases and postoperative whole-brain radiation therapy (WBRT) improves survival, compared with treatment using WBRT alone, the value of postoperative WBRT after resection of brain metastases is controversial. We analyzed the largest reported series of lung cancer patients with resected brain metastases to evaluate the impact of postoperative WBRT. MATERIALS AND METHODS Between 1974 and 1989, 185 patients with non-small-cell lung cancer (NSCLC) underwent resection of brain metastases. Patients who had received preoperative WBRT (23%, 42 of 185) were excluded. The remaining patients were divided into group A (no WBRT; n = 32), group B (patients received WBRT and were prognostically matched to group A; n = 32), and group C (all other WBRT patients; n = 79). Most patients received postoperative doses of 30 Gy in 10 fractions. Higher doses were used in 16% of group B and 18% of group C patients. RESULTS Overall 5-year survival rates were as follows: group A, 12%; B, 8%; C, 16%. Overall brain failures occurred in 38% of patients in group A, 47% in group B, and 42% in group C. The use of WBRT (group A v groups B plus C) had no apparent impact on survival or on overall brain failure rates. In particular, no improvement in either of these parameters could be demonstrated when group B was compared with group A. Focal failure (defined as failure within the brain adjacent to the site of the resected brain metastases) occurred as follows: group A, 34% (11 of 32); groups B plus C, 23% (25 of 111) (P = .07). WBRT significantly reduced focal failure for patients with adenocarcinoma (group A, 33% [eight of 24]; groups B plus C, 14% [11 of 79]; P = .05). Nonfocal failure (anatomically distinct from the resected metastasis) occurred in 9% of patients in group A (three of 32), 21% in groups B plus C (23 of 111) (P = .07). CONCLUSION Long-term survival is possible when NSCLC brain metastases are resected. Postoperative WBRT as used in this series only had an impact on the focal control of brain metastases and this effect was of borderline significance. The lack of conclusive benefit supports the need for ongoing randomized trials to test the value of adjuvant postoperative WBRT. Brain failures were relatively common in all three groups of patients, which suggests that doses greater than 30 Gy need to be studied.


Author(s):  
O. Cohen-Inbar

Melanoma represents the third most common cause of CNS metastases. Immunotherapy has evolved as a treatment option for patients with stage-IV melanoma. Stereotactic radiosurgery (SRS) also elicits an immune response within the brain and may interact with immunotherapy. We report a cohort of patients treated for brain metastasis with immunotherapy and evaluate the effect of SRS timing on the intracranial response. Methods: All consecutively treated melanoma patients receiving Ipilimumab and SRS for their brain metastasis were included in the retrospective analysis. 46 patients harboring 232 brain metastases were reviewed. The median clinical follow-up was 7.9 months (3-42.6). Median age was 63 years (24.3-83.6). 32 patients received SRS before or during ipilimumab cycles (Group-A) whereas 14 patients received SRS after the ipilimumab treatment (Group-B). Radiographic and clinical responses were assessed at approximately 3 months intervals after SRS. Results: The two cohorts were comparable in pertinent pre-treatment aspects with the exception of SRS timing relative to ipilimumab. Local recurrence free duration (LRFD) was significantly longer in Group-A patients (19.6 months, range 1.1-34.7 months) as compared to group-B patients (3 months, range 0.4-20.4 months), respectively (p=0.002). Post-SRS perilesional edema was more significant in Group-A. Conclusions: The effect of SRS and ipilimumab in attaining LRFD seems greater when SRS is performed before or during ipilimumab treatments. The timing of immunotherapy and SRS may effect LRFD and post-radiosurgical edema. The interactions between immunotherapy and SRS warrant further investigation so as to optimize the therapeutic benefits and mitigate the risks associated with multimodality, targeted therapy.


1995 ◽  
Vol 83 (4) ◽  
pp. 605-616 ◽  
Author(s):  
Marek Wroński ◽  
Ehud Arbit ◽  
Michael Burt ◽  
Joseph H. Galicich

✓ The authors reviewed the records of 231 patients who underwent resection of brain metastases from nonsmall-cell lung cancer between 1976 and 1991. Data regarding the primary disease and the characteristics of brain metastasis were retrospectively collected. Median survival in the group from the time of first craniotomy was 11 months; postoperative mortality was 3%. Survival rates of 1, 2, 3, and 5 years were 46.3%, 24.2%, 14.7%, and 12.5%, respectively. One hundred twelve women survived significantly longer than 119 men (13.8 vs. 9.5 months, p < 0.02). Patients with single metastatic lesions (200 patients) survived longer than those (31 patients) with multiple metastases (11.1 vs. 8.5 months, p < 0.02). Patients with supratentorial tumors survived longer than patients with cerebellar lesions. A high Karnofsky performance scale score before surgery also indicated increased survival. In multivariate analyses, incomplete resection or no resection of primary lung tumor, male gender, infratentorial location, presence of systemic metastases, and age older than 60 years were significantly correlated with shorter survival. Approximately one-third of the patients died of neurological causes, one-third of systemic disease, and one-third of a combination of both. The results of this series confirm that the overall prognosis for patients with even a single resectable brain metastasis is poor, but that aggressive therapy can prolong life with quality of life preserved and can occasionally permit long-term survival.


2020 ◽  
Vol 21 (2) ◽  
pp. 120-126
Author(s):  
Alamgir Md ◽  
Karim Km Monwarul ◽  
Nandy SP ◽  
Md Monwar Ul Haque ◽  
Sakhawat Mahmud Khan

Objective: The aim of the study was to compare the endoscopic versus percutaneous approach (blind) to control the obturator jerk in patients undergoing transurethral resection of bladder tumors under spinal anesthesia. Materials and methods: A prospective observational study was performed in Department of Urology, Chittagong Medical College, Chittagong and some Private Hospitals (Ltd.) in Chittagong city during the period from January 2016 to June 2016. Total 100 patients were grouped into two, on alternate basis. Fifty(50) patients in group- A conducted with endoscopic infiltration with 20ml of injection 2% lignocaine at the bladder tumor base and another 50 patients in group-B, conducted with blind percutaneous technique with same drug and volume ( 20ml inj.2% lignocaine) to control obturator jerk. Severity of obturator jerk in both procedure, percentage of complete resection, ONB procedure related time, ONB procedure related complications and surgeon’s satisfaction level were recorded and compared between two approaches. Chi-square analysis was performed to compare the ease of approach and outcome of the two techniques. A value of P<0.05 was considered statistically significant. Results: The mean age of the patients were 59.44+7.681. In group-A, 50 patients were given inj. 2% lignocaine endoscopically at the bladder tumor base to control obturator jerk. Twenty five patients (50%) had no jerk, 20 patients(40%) developed mild jerk and 5 patients (10%) developed moderate jerk and no patients developed severe jerk. Second attempt was taken in moderate jerk patients (5 patients) and succeeded in 3(6%) patients. So, in this group, complete resection of bladder tumor was possible in 96%. In group B, complete resection of bladder tumor was possible in 84%. Statistical analysis was done and result is significant in case of endoscopic procedure to control obturator jerk(p<0.05). ONB Procedure related time was <20 mins. in 32(64%) patients in group-A and 45 (90%) patients in group- B. 20 mins. or more time was required for 18 (36%) patients in group-A and 5 (10%) patients in group-B. Statistical analysis was done and result is significant in percutaneous (blind) technique (p<0.05). ONB procedure related complications in group-A and Group –B were noted. Statistical analysis was done and result is insignificant (p>0.05). Surgeons satisfaction level were recorded on the basis of obturator jerk block and complete resection and which was statistically significant in favour of endoscopy group (p<0.05). Conclusion: It is concluded that endoscopic injection of 2% lignocaine into the bladder tumor base is better in case of jerk elimination and complete resection than blind percutaneous approach. Though, ONB procedure related time was significantly less in percutaneous group. Bangladesh Journal of Urology, Vol. 21, No. 2, July 2018 p.120-126


2010 ◽  
Vol 113 (Special_Supplement) ◽  
pp. 48-52 ◽  
Author(s):  
Toru Serizawa ◽  
Masaaki Yamamoto ◽  
Yasunori Sato ◽  
Yoshinori Higuchi ◽  
Osamu Nagano ◽  
...  

Object The authors retrospectively reviewed the results of Gamma Knife surgery (GKS) used as the sole treatment for brain metastases in patients who met the eligibility criteria for the ongoing JLGK0901 multi-institutional prospective trial. They also discuss the anticipated results of the JLGK0901 study. Methods Data from 1508 consecutive cases were analyzed. All of the patients were treated at the Gamma Knife House of Chiba Cardiovascular Center or the Mito Gamma House of Katsuta Hospital between 1998 and 2007 and met the following JLGK0901 inclusion criteria: 1) newly diagnosed brain metastases, 2) 1–10 brain lesions, 3) less than 10 cm3 volume of the largest tumor, 4) no more than 15 cm3 total tumor volume, 5) no findings of CSF dissemination, and 6) no impairment of activities of daily living (Karnofsky Performance Scale score < 70) due to extracranial disease. At the initial treatment, all visible lesions were irradiated with GKS without upfront whole-brain radiation therapy. Thereafter, gadolinium-enhanced MR imaging was performed every 2–3 months, and new distant lesions were appropriately retreated with GKS. Patients were divided into groups according to numbers of tumors: Group A, single lesions (565 cases); Group B, 2–4 tumors (577 cases); and Group C, 5–10 tumors (366 cases). The differences in overall survival (OS) were compared between groups. Results The median age of the patients was 66 years (range 19–96 years). There were 963 men and 545 women. The primary tumors were in the lung in 1114 patients, gastrointestinal tract in 179, breast in 105, urinary tract in 66, and other sites in 44. The overall mean survival time was 0.78 years (0.99 years for Group A, 0.68 years for Group B, and 0.62 years for Group C). The differences between Groups A and B (p < 0.0001) and between Groups B and C (p = 0.0312) were statistically significant. Multivariate analysis revealed significant prognostic factors for OS to be sex (poor prognostic factor: male, p < 0.0001), recursive partitioning analysis class (Class I vs Class II and Class II vs III, both p < 0.0001), primary site (lung vs breast, p = 0.0047), and number of tumors (Group A vs Group B, p < 0.0001). However, no statistically difference was detected between Groups B and C (p = 0.1027, hazard ratio 1.124, 95% CI 0.999–1.265). Conclusions The results of this retrospective analysis revealed an upper CI of 1.265 for the hazard ratio, which was lower than the 1.3 initially set by the JLGK0901 study. The JLGK0901 study is anticipated to show noninferiority of GKS as sole treatment for patients with 5–10 brain metastases compared with those with 2–4 in terms of OS.


2006 ◽  
Vol 105 (Supplement) ◽  
pp. 238-240 ◽  
Author(s):  
Albertus T. C. J. van Eck ◽  
Gerhard A. Horstmann

✓The occurrence of brain metastases from a malignant schwannoma of the penis is extremely rare. In patients with a single brain metastasis, microsurgical extirpation is the treatment of choice and verifies the diagnosis. In cases of multiple or recurrent metastases, radiosurgery is an effective and safe therapy option. Gamma Knife surgery was performed in a patient who had previously undergone tumor resection and who presented with recurrence of the lesion and three de novo brain metastases. This first report on brain metastasis from a malignant penile schwannoma illustrates the efficacy and safety of radiosurgical treatment for these tumors.


2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 287-288 ◽  
Author(s):  
Thomas Mindermann

Object. The authors evaluated prognostic factors for tumor recurrence and patient survival following gamma knife surgery (GKS) for brain metastasis. Methods. A retrospective review of 101 patient charts was undertaken for those patients treated with GKS for brain metastases from 1994 to 2001. Recurrence rates of brain metastasis following GKS depended on the duration of patient survival. Long-term survival was associated with a higher risk of tumor recurrence and shorter-term survival was associated with a lower risk. The duration of survival following GKS for brain metastases seems to be characteristic of the primary disease rather than the cerebral disease. Conclusions. Recurrence rates of brain metastasis following GKS are related to duration of survival, which is in turn mostly dependent on the nature and course of the primary tumor.


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