bluuebunny/crossref_metadata_2025_split huggingface dataset:
Case/control study of the role of splenectomy in chronic lymphocytic leukemia.
Authors: Seymour J F , Cusack J D , Lerner S A , Pollock R E , Keating M J 
Published: February 2017

PURPOSE This retrospective analysis was performed to evaluate critically the morbidity and mortality of splenectomy in patients with chronic lymphocytic leukemia and to determine the probability of hematologic response. Further, using a case/control format based on multivariate analysis-derived predictors of survival, we evaluated the influence of splenectomy on survival. PATIENTS AND METHODS Between 1971 and 1993, 55 patients with chronic lymphocytic leukemia underwent splenectomy. They were compared with 55 fludarabine-treated patients who had been matched for age, serum albumin level, sex, hemoglobin level, Rai stage, number of prior therapies, and time from diagnosis. RESULTS In the perioperative period, blood-product usage was modest, and common morbidities were limited to minor infections in 18% of the patients and pneumonia/atelectasis in 25%. Perioperative mortality was 9%. Deaths were related to septic complications in all cases and associated with a preoperative performance status > or = 2 (P = .05). The only predictor identified for hemoglobin and neutrophil increments was spleen weight (P < .05). No factors predictive of platelet increment were identified. The early death rate (within 30 days) and overall survival of splenectomy and control patients were not significantly different (P > .2). Among Rai stage IV patients, those who were splenectomized displayed a strong trend for improved overall survival (P = .15 by log-rank test). The 2-year actuarial survival rate of Rai stage IV patients was 51% +/- 9% in the splenectomy group and 28% +/- 9% in the control group. CONCLUSION Splenectomy can be performed with modest morbidity, mortality, and resource utilization in patients with advanced chronic lymphocytic leukemia and significant cytopenias. The procedure results in major hematologic benefits in most patients, with hemoglobin and neutrophil increments correlated with spleen weight. Overall, the survival of splenectomized patients is equivalent to control patients. Thrombocytopenic patients (< 100 x 10(9)/L) are most likely to obtain hematologic benefit, and potentially enjoy improved survival. These patients would be suitable for a randomized study to establish definitively the role of splenectomy in chronic lymphocytic leukemia.
Conservative treatment of rectal adenocarcinoma with endocavitary irradiation or wide local excision and postoperative irradiation.
Authors: Mendenhall W M , Rout W R , Vauthey J N , Haigh L S , Zlotecki R A , Copeland E M 
Published: February 2017

PURPOSE To evaluate the role of endocavitary irradiation and wide local excision followed by irradiation in the treatment of early-stage rectal adenocarcinoma. MATERIALS AND METHODS Sixty-five patients with early-stage adenocarcinoma of the rectum were treated with endocavitary irradiation (n = 20) or wide local excision followed by external-beam irradiation (n = 45) between 1974 and 1994 at the University of Florida. All patients were monitored for a minimum of 2 years or until death. RESULTS The rates of local-regional control at 5 years were 80% after endocavitary irradiation and 86% after wide local excision and radiotherapy. The ultimate 5-year local-regional control rates were 85% and 92%, respectively. Multivariate analysis of local-regional control with sphincter preservation showed that tumor configuration (exophytic v ulcerative) significantly influenced this end point; local-regional control was decreased in patients with ulcerated cancers. Five-year cause-specific survival rates were 84% after endocavitary irradiation and 88% after wide local excision and radiotherapy. Multivariate analysis revealed that tumor configuration significantly influenced cause-specific survival; patients with ulcerated tumors had a worse prognosis. CONCLUSION Endocavitary irradiation is a highly effective treatment for properly selected patients with early-stage rectal adenocarcinoma. Patients with less favorable lesions that appear to be limited to the muscularis propria have a high chance of cure with sphincter preservation after wide local excision and external-beam irradiation.
Evaluation of newer prognostic markers for adult soft tissue sarcomas.
Authors: Levine E A , Holzmayer T , Bacus S , Mechetner E , Mera R , Bolliger C , Roninson I B , Das Gupta T K 
Published: February 2017

PURPOSE In addition to tumor size, grade, location, and the presence of metastases, other factors may be useful in prognostication for adults with soft tissue sarcoma (STS). This study examines the relationship of MDR-1 mRNA, p-glycoprotein (P-gp), Ki-67 expression, and DNA content expression to clinical outcome in adults with STS. PATIENTS AND METHODS Snap-frozen STS specimens from 65 patients were analyzed and compared with clinical outcomes. Immunohistochemistry was performed for the Ki-67 antigen and P-gp. DNA content was determined using the Feulgen reaction and quantitated using image analysis. MDR-1 mRNA expression was determined using a reverse-transcriptase polymerase chain reaction (RT-PCR)-based assay. RESULTS P-glycoprotein expression was found by immunohistochemistry in 48% of cases with 5-year overall (54% v 14%, P = .07) and disease-free survival rates (32% v 18%, P = .039) higher in high-grade tumors that did not express P-gp. MDR-1 mRNA was detected in 51% of cases and no patient with high levels of MDR-1 mRNA expression was a long-term survivor. Patients with diploid tumors had significantly better survival than those with nondiploid tumors (51% v 31%, P = .03). High levels of Ki-67 were associated with poorer overall survival (46% v 31%, P = .04). On multivariate analysis, American Joint Committee on Cancer (AJCC) staging, DNA content, Ki-67, and P-gp staining were significant prognostic factors for 5-year overall and disease-free survival. CONCLUSION P-gp expression, high-level Ki-67 expression, and nondiploid DNA content are independent prognostic indicators that correlate with poor outcomes in STS patients. However, MDR-1 mRNA was not found to be predictive of survival. These newer markers are useful additions to AJCC staging for prognostication for patients with STS. Such markers may be useful in selecting high-risk STS patients who could benefit from systemic adjuvant therapy.
Lung cancer metastatic cells detected in blood by reverse transcriptase-polymerase chain reaction and dot-blot analysis.
Authors: Castaldo G , Tomaiuolo R , Sanduzzi A , Bocchino M L , Ponticiello A , Barra E , Vitale D , Bariffi F , Sacchetti L , Salvatore F 
Published: February 2017

PURPOSE We analyzed the blood of patients with lung cancer at different stages of presentation for the presence of carcinoembryonic antigen (CEA) mRNA detected by reverse transcriptase-polymerase chain reaction (RT-PCR) combined with the dot-blot procedure as an indicator of micrometastatic malignant cells. PATIENTS AND METHODS We studied 24 lung cancer patients (10 with distant metastases and 14 with no evidence of distant metastases), eight age- and sex-matched patients affected by nonneoplastic respiratory diseases (four smokers), and eight healthy subjects. We used immunohistochemistry and RT-PCR dot-blot analysis to evaluate CEA expression in the neoplastic tissue, and the RT-PCR dot-blot procedure to analyze CEA mRNA in circulating cells. RESULTS The RT-PCR dot-blot procedure was highly sensitive aspecific: it detected CEA mRNA in samples of RNA from lung cancer diluted 10(6)-fold with RNA extracted from normal blood cells, and sequence analysis confirmed that the amplified product was CEA. CEA mRNA was found in circulating cells from eight of 10 lung cancer patients with distant metastases (diagnostic sensitivity, 80%) and in four of 14 patients with no evidence of distant metastases. Two of the latter had distant metastases within 6 months of analysis. Thus, the diagnostic specificity of the analysis toward lung cancer without distant metastases was 86%. The analysis was negative in the eight nonneoplastic patients and in the eight healthy controls. CONCLUSION The RT-PCR dot-blot analysis of CEA mRNA in blood cells seems to be a promising tool for the early detection of micrometastatic circulating cells in patients with lung cancer.
Phase II study of single-agent gemcitabine in previously untreated patients with metastatic urothelial cancer.
Authors: Stadler W M , Kuzel T , Roth B , Raghavan D , Dorr F A 
Published: February 2017

PURPOSE To determine the activity of single-agent gemcitabine in previously untreated patients with metastatic transitional cell cancer. METHODS Forty patients with measurable disease and a Karnofsky performance status > or = 60% were enrolled at five institutions between March 1994 and October 1995. Treatment consisted of gemcitabine (1,200 mg/m2) administered weekly times three on a 4-week cycle. One patient was ineligible for response evaluation because pathology review showed a metastatic melanoma. Responses were confirmed by all investigators and an independent radiologist and were maintained for at least 4 weeks. RESULTS There were four complete and seven partial responses, for an overall response rate of 28%. Responses were seen at all sites, including liver. Median progression-free and overall survival times were 20 and 54 weeks, respectively. Toxicity was mild, with only two grade 4 toxicities. Twenty-five percent of patients experienced grade 3 neutropenia or thrombocytopenia that was rapidly reversible. CONCLUSION Gemcitabine exhibits significant activity in metastatic transitional cell cancer with minimal toxicity, but survival remains short. Trials of gemcitabine in combination with other active agents are thus suggested.
Patterns of care for women with ovarian cancer in the United States.
Authors: Muñoz K A , Harlan L C , Trimble E L 
Published: February 2017

PURPOSE To characterize treatments for ovarian cancer, to determine if recommended staging and treatment were provided, and to determine factors that influence receipt of recommended staging and treatment. METHODS A total of 785 women diagnosed with ovarian cancer in 1991 were selected from the National Cancer Institute (NCI) Surveillance, Epidemiology, and End Results (SEER) program. Type and receipt of recommended staging and treatment were examined using data on surgery and physician-verified chemotherapy. RESULTS Most women with presumptive stage I and II ovarian cancer were treated with surgery alone (58%), while women with stage III or IV disease were treated with surgery plus platinum-based chemotherapy (75% stage III, 56% stage IV). Approximately 10% of women with presumptive stage I and II, 71% with stage III, and 53% with stage IV disease received recommended staging and treatment. The absence of lymphadenectomy and assignment of histologic grade were the primary reasons women with presumptive stage I and II cancer did not receive recommended staging and treatment, whereas for stages III and IV, it was due to older women not receiving surgery plus platinum-based adjuvant chemotherapy. Age, stage, comorbidity, "other" race/ethnicity, and treatment at a facility with an approved residency training program were associated with whether recommended staging and therapy were received. CONCLUSION Older women with late-stage disease did not receive recommended treatment. The majority of women with early-stage disease did not receive recommended staging and treatment.
NB87 induction protocol for stage 4 neuroblastoma in children over 1 year of age: a report from the French Society of Pediatric Oncology.
Authors: Coze C , Hartmann O , Michon J , Frappaz D , Dusol F , Rubie H , Plouvier E , Leverger G , Bordigoni P , Béhar C , Beck D , Mechinaud F , Bergeron C , Plantaz D , Otten J , Zucker J M , Philip T , Bernard J L 
Published: February 2017

PURPOSE NB87 was designed to test the efficacy of a short, non cross-resistant, induction protocol for unselected patients over 1 year of age with stage 4 neuroblastoma. A secondary objective was to compare in a randomized study the toxicity of two modalities of cisplatin administration. PATIENTS AND METHODS A total of 183 patients received two cycles of alternating sequences: cyclophosphamide 300 mg/m2/d on days 1 to 5, vincristine 1.5 mg/m2/d on days 1 and 5, and doxorubicin 60 mg/m2/d on day 5 (CADO); and cisplatin 40 mg/m2/d and etoposide 100 mg/m2/d on days 1 to 5 (CVP), followed by surgery of the primary tumor (126 patients). Ninety-one were randomized to receive cisplatin either as bolus (BO; n = 48) or continuous infusion (CI; n = 43). International Neuroblastoma Staging System (INSS) and Response Criteria (INRC) were used with emphasis on skeletal evaluation by meta-iodobenzylguanidine (MIBG). RESULTS Hematotoxicity was predominant, with a higher incidence of neutropenia (P = .01) for CADO and of thrombocytopenia for CVP (P < .001). Severe infections, as well as nonhematologic toxicities, occurred more often after the first sequence. Gastrointestinal complications were predominant during both courses of CVP. The toxic death rate, including surgery, was 3%. Complete remissions (CRs) were less frequent on MIBG (45%) compared with marrow (66%) or other metastases (61%). Combining all metastatic sites resulted in a 39% CR rate. After surgery, the final CR rate was 42%. Nephrotoxicity was minimal in both arms (92% normal clearance for CI v 82% for BO). Hearing loss greater than 40 dB at 6,000 to 8,000 Hz was reported equally in both arms (n = 6 for CI v n = 5 for BO). CONCLUSION Intensified chemotherapy using CADO/CVP increases CR rates despite a shorter induction duration. However, the rate of MIBG normalization remains unsatisfactory and could be raised through the dose-intensive use of agents such as cyclophosphamide.
Retinoblastoma protein and proliferating-cell nuclear antigen expression as predictors of recurrence in well-differentiated papillary thyroid carcinoma.
Authors: Omura K , Nagasato A , Kanehira E , Kinsen H , Amaya S , Kimura K , Kajita T , Nozaki Y , Mizukami Y , Nonomura A , Watanabe Y 
Published: February 2017

PURPOSE We analyzed retinoblastoma protein (pRB) and proliferating-cell nuclear antigen (PCNA) expression in primary tumors and recurrent lesions of well-differentiated papillary thyroid carcinoma (PTC) to clarify the relationship between their expression and recurrent disease. PATIENTS AND METHODS The study included 93 patients with PTC. No recurrent disease had developed in 60 patients within 10 years after surgery (group N). Thirty patients in whom recurrent disease had developed after surgery were enrolled in group R. Levels of pRB and PCNA expression were quantified using the CAS 200 system (Cell Analysis Systems, Elmhurst, IL) following immunohistochemical staining. RESULTS Mean pRB expression level in the primary tumors in group R was significantly lower than that in group N (P < .0001). pRB expression in the tumors with a diameter up to 20 mm was significantly lower than that in tumors larger than 20 mm in group R (P < .01). There were no significant differences in the levels of expression of PCNA in the primary tumors between group N and group R. Univariate analysis demonstrated that the disease-free survival was significantly correlated with pN category, pRB, and PCNA expression level. The subgroup with high-level expression of pRB (> 25%) showed significantly long disease-free survival (P < .001). Furthermore, the subgroup with low-level expression of PCNA (< 35%) showed significantly longer disease-free survival (P < .05). Multivariate analysis showed pRB expression and pN category to be independent prognostic factors for disease-free survival in PTC. CONCLUSION pRB expression level can be used as a reliable predictor for recurrence of PTC.
Preoperative chemotherapy for stage IIIB extremity soft tissue sarcoma: long-term results from a single institution.
Authors: Pisters P W , Patel S R , Varma D G , Cheng S C , Chen N P , Nguyen H T , Feig B W , Pollack A , Pollock R E , Benjamin R S 
Published: February 2017

PURPOSE To review a single institution's long-term results with doxorubicin-based preoperative chemotherapy for American Joint Committee on Cancer (AJCC) stage IIIB extremity soft tissue sarcoma (STS). PATIENTS AND METHODS The records of all patients with AJCC stage IIIB extremity STS treated with preoperative chemotherapy between 1986 and 1990 at The University of Texas M.D. Anderson Cancer Center were reviewed to assess rates of response, local recurrence-free survival (LRFS), distant metastasis-free survival (DMFS), disease-free survival (DFS), and overall survival (OS). RESULTS Seventy-six patients with stage IIIB disease received preoperative chemotherapy. The median sarcoma size was 10 cm. Seventy-two patients (95%) had tumors located deep to the muscular fascia. Most patients received a median of three preoperative cycles of doxorubicin and dacarbazine (ADIC), cyclophosphamide and ADIC (CyADIC), or other doxorubicin-based regimens. Radiographic response rates were as follows: complete response (CR), 9%; partial response (PR), 19%; minor response, 13%; stable disease, 30%; and progression, 30%. The overall objective major response rate (CRs plus PRs) was 27%. At a median follow-up time of 85 months, 5-year actuarial rates of LRFS, DMFS, DFS, and OS with 95% confidence intervals (CIs) were 83% (CI, 73% to 94%), 52% (CI, 41% to 66%), 46% (CI, 35% to 60%), and 59% (CI, 48% to 72%), respectively. Comparison of responding patients (CRs plus PRs) and nonresponding patients did not show any significant differences in LRFS, DMFS, DFS, or OS. CONCLUSION Preoperative doxorubicin-based chemotherapy was associated with response, DFS, and OS rates similar to those observed in randomized postoperative chemotherapy trials. Responding patients had rates of LRFS, DMFS, DFS, and OS comparable to those of nonresponders.
Response rate accuracy in oncology trials: reasons for interobserver variability. Groupe Français d'Immunothérapie of the Fédération Nationale des Centres de Lutte Contre le Cancer.
Authors: Thiesse P , Ollivier L , Di Stefano-Louineau D , Négrier S , Savary J , Pignard K , Lasset C , Escudier B 
Published: February 2017

PURPOSE We evaluated the impact of an evaluation committee (EC) on patients' overall response status in a large multicenter trial in oncology. We identified reasons for disagreements between investigators and the EC. MATERIALS AND METHODS The Cancer Renal Cytokine (CRECY) study was a French multicenter trial that tested cytokine therapy in 489 patients with metastatic renal cell carcinoma. Objective response (OR) evaluation included medical imaging and was studied according to international guidelines. A blinded peer review of all responders and litigious cases was performed by an EC. RESULTS Major disagreements occurred in 40% and minor disagreements in 10.5% of the reviewed files. The number of significant tumor responses was reduced by 23.2% after review by the EC. Reasons for disagreements included errors in tumor measurements, errors in selection of measurable targets, intercurrent diseases, and radiologic technical problems. These reasons for disagreements are analyzed and discussed. CONCLUSION We conclude that all therapeutic trial results should be reviewed by peer analysis of all presumed responders by an EC. International guidelines for response evaluation should be updated by including more reliable methods of measurements and definition of minimal imaging procedures.
High-dose therapy with autologous hematopoietic rescue for follicular low-grade non-Hodgkin's lymphoma.
Authors: Bierman P J , Vose J M , Anderson J R , Bishop M R , Kessinger A , Armitage J O 
Published: February 2017

PURPOSE This study evaluated the results of high-dose therapy followed by autologous bone marrow or peripheral-blood stem-cell transplantation for patients with follicular low-grade non-Hodgkin's lymphoma. PATIENTS AND METHODS We performed a retrospective review of 100 patients undergoing autologous transplantation for follicular low-grade lymphoma between April 22, 1983 and December 31, 1993. RESULTS Sixty-seven patients remained alive and 48 were failure-free. The median follow-up duration of surviving patients was 2.6 years (range, 1.0 to 11.7). There were eight (8%) deaths within 100 days of transplantation. Six additional patients died of nonrelapse causes up to 912 days after transplantation. Overall survival at 4 years was estimated to be 65% (95% confidence interval [CI], 54% to 75%) and failure-free survival was estimated to be 44% (95% CI, 33% to 55%). There was no definite evidence of a plateau in the failure-free survival curve. The only factor significantly associated with overall survival and failure-free survival was the number of chemotherapy regimen received before transplantation. No significant differences in outcome were observed between patients with follicular small cleaved-cell lymphoma and follicular mixed lymphoma, or between patients who received peripheral-blood stem-cell transplants and unpurged autologous bone marrow transplants. CONCLUSION Prolonged failure-free survival is possible following high-dose therapy and autologous hematopoietic rescue for follicular low-grade lymphoma. It is unclear whether patients are cured with this therapy or if survival is prolonged.
Gallium scans in the management of patients with Hodgkin's disease: a study of 101 patients.
Authors: Salloum E , Brandt D S , Caride V J , Cornelius E , Zelterman D , Schubert W , Mannino T , Cooper D L 
Published: February 2017

PURPOSE To evaluate the utility of periodic gallium (67Ga) scans in the management of patients with Hodgkin's disease. PATIENTS AND METHODS From 1990 to 1994, 101 patients treated for Hodgkin's disease (stage I to II, n = 67; stage III to IV, n = 34) had a positive 67Ga scan at the time of diagnosis. Treatment included chemotherapy in 27 patients, radiation therapy in 28, and combined modality therapy in 46. All patients underwent 67Ga scans at the time of diagnosis, near the end or just after treatment, and at periodic follow-up evaluation. RESULTS After treatment, the 67Ga scan remained positive in four patients and was interpreted as negative in 97. Among the four patients with positive scans, two died of progressive disease and two relapsed. Among the remaining 97 patients with negative 67Ga scans, 16 patients relapsed, including five with stage I to II (7.5%) and 11 with stage III to IV (34.4%) disease. The negative predictive value of posttherapy 67Ga scan was 83.5% for all patients; however, when calculated according to stage, it was 92.4% for patients with stage I to II disease and 64.5% for patients with stage III to IV disease (P < .01). CONCLUSION A positive 67Ga scan at the end of therapy is rarely seen in patients with Hodgkin's disease and should be considered a manifestation of gross residual disease. However, a negative 67Ga scan after therapy had a significantly lower predictive value in patients with stage III to IV disease compared with stage I to II disease. The predictive value of 67Ga scans, as well as newer imaging studies, should be analyzed according to pretreatment stage.