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Prognostic factors affecting long-term survival after partial hepatectomy for human hepatocellular carcinoma.

BACKGROUND: Various prognostic factors have been studied during the past few years to predict early tumor recurrence and survival in patients undergoing hepatectomy for primary hepatocellular carcinoma. However, the relationship between these factors and long-term survival has not been clarified. The purpose of this study was to identify the factors linked to long-term prognosis in patients with resectable hepatocellular carcinoma after hepatectomy. METHODS: Records of 370 patients undergoing curative hepatectomy during a period from July 1981 to July 1994 were retrospectively reviewed. Only 110 patients with disease-free survival > or = 36 months were eligible for long-term survival analysis. Their further outcomes, including disease-free survival and overall survival, were analyzed in correlation with various prognostic factors by Kaplan-Meier's method, log rank test; and Cox's regression model. Analysis of prognostic factors linked to early tumor recurrence after curative hepatectomy was also performed in 324 patients who were followed up > or = 12 months. RESULTS: Tumor behaviors were found to be the principal prognostic factors determining the early tumor recurrence and patients' survival (p < 0.05). However, when long-term survival was analyzed, the pathological status of the liver remnant such as the presence or absence of hepatitis B virus infection, chronic active hepatitis, hepatocyte dysplasia and age (< or = 60 y/o vs. > 60 y/o), as well as preoperative liver function (total serum bilirubin < or = 1.5 mg/dl vs. > 1.5 mg/dl), were found to make significant disease-free survival differences (p < 0.05), whereas the factors linked to tumor behaviors and surgical factors showed no influence on long-term prognosis. CONCLUSIONS: Pathological status and host factors (age and liver function) have effect upon long-term prognosis after hepatic resection for hepatocellular carcinoma.

Adult↗

Prognostic factors and clinicopathologic characteristics of invasive adenocarcinoma of the uterine cervix.

OBJECTIVE: The purpose of this study was to evaluate the outcome of patients with cervical adenocarcinoma and to determine the characteristics and the prognostic factors of this entity. STUDY DESIGN: This retrospective study was done in the Department of Surgical Oncology of the Salah Azaiz Institute of Tunis with 79 cases of invasive adenocarcinoma of the uterine cervix that were collected from 1990 to 1999. Survival was analyzed according to the Kaplan-Meier method. Univariate analysis of prognostic factors was performed with the test of log rank. Cox regression model was used in multivariate analysis of prognostic factors. RESULTS: Mean age was 50 years, and metrorrhagia was mostly revealing in 73% of the cases. Early stages (I, IIa, IIb with 1/3 proximal parametrial invasion) and "pure" type adenocarcinoma were found in 78% and 87% of the cases, respectively. Treatment consisted of a radiosurgical combination in 52 cases; exclusive radiotherapy was practiced with 17 patients. The 5 year-overall and disease-free survival percentages were, respectively, 68% and 72.4%. Poor prognostic factors were age >50 years, tumor size >4 cm, advanced stage, tumor grade, and lymph nodes and lymph-vascular space involvement. With the use of multivariate analysis, only stage and lymph node metastases remained significant prognostic factors. CONCLUSION: This report shows survival and prognostic factors that are similar to those found in previous studies, but unlike the Western countries, our results demonstrate a high rate of early stages and no increase in frequency of cervical adenocarcinoma.

Adenocarcinoma↗

[Pneumonias in patients with malignant hemopathies. Their etiology, response to treatment and prognostic factors in 69 patients (88 episodes)].

BACKGROUND: To analyze the etiology, treatment response and prognostic factors in 88 episodes of pneumonia in patients with hematological malignancies diagnosed in one center during a period of 30 months. PATIENTS AND METHODS: 88 episodes of pneumonia in 69 adult patients were studied. Age, sex, hematological malignancy and its treatment, existence of neutropenia and hypogammaglobulinemia, administration of immunosuppressive agents, type (hospital or community-acquired) and localization of pneumonia, presence of respiratory failure and treatment response were reported. For etiologic diagnosis of pneumonias, cultures of blood, sputum, pleural fluid and bronchoalveolar lavage (BAL), as well as Legionella pneumophila, Aspergillus fumigatus and Streptococcus pneumoniae antigen detection in urine were performed. Univariate and multivariate analyses of prognostic factors for pneumonia evolution were carried out. RESULTS: The median age was 63 years. Acute leukemias (AL) were the predominant hematological malignancies. Microbiologic documentation was obtained in 40 (45%) of pneumonias. Fiberoptic bronchoscopy with BAL (71%) was the diagnostic procedure with highest yield followed by blood cultures (25%). Streptococcus pneumoniae (13) was the most frequent isolated pathogen, followed by Legionella pneumophila (6) and Pseudomonas aeruginosa (6). A significantly higher prevalence of Streptococcus pneumoniae was observed in community-acquired pneumonia. The overall mortality rate was 20%. Respiratory failure (p = 0.0009), existence of neutropenia (p = 0.0023), age equal or higher than 60 years (p = 0.012) and prolonged administration of immunosuppressive agents (p = 0.015) were the prognostic factors associated with unfavourable evolution of pneumonias in the multivariate analysis. CONCLUSIONS: The etiologic diagnosis of pneumonia in patients with hematological malignancies was only achieved in a half of cases. In our series, the high prevalence of Legionella pneumophila can be attributed to the special epidemiologic characteristics of our hospital. Prognostic factors of pneumonia are related to individual factors as well as to the hematological status of patients.

Adolescent↗

[Prognostic factors of bone and soft tissue sarcomas].

Prognostic factors of bone and soft tissue sarcomas were analyzed and common factors observed were the size of tumor, histological malignancy and metastasis. When these factors were viewed in advance of treatment, however, the prognosis of the sarcomas has definitely improved with chemotherapy and radical surgery of primary and metastatic lesions, combined and not combined with radiotherapy. Preoperative adjuvant chemotherapy now plays an important role in the whole strategic regimen of cancer treatment. Of various prognostic factors, the dominance of the sensitivity of each patient to preoperative adjuvant chemotherapy was indicated.

Bone Neoplasms↗

[Prognostic factors for long-term outcome of hepatic resection for colorectal liver metastases].

The aim of the study was to analyse the prognostic factors for long-term outcome of liver resections for metastases from colorectal cancer. The retrospective analysis included 297 liver resections for colorectal carcinoma liver metastases. The following prognostic factors were considered: age, gender, stage and grade of differentiation of the primary tumour, node metastases, site of the primary colorectal cancer, number and diameter of the hepatic lesions, time interval from primary cancer to liver metastases, preoperative CEA level, adjuvant chemotherapy after hepatic resection, type of hepatic resection, use of intraoperative ultrasound and portal triad clamping, blood loss and transfusions, postoperative complications and hospital stay, tumour-free surgical margins, clinical risk score (as defined by the Memorial Sloan-Kettering Cancer Centre group, MSKCC-CRS). Overall survival rates were estimated according to the Kaplan-Meier method and were compared at univariate analysis using the log-rank test. Multivariate analysis was performed including significant variables at univariate analysis using the Cox regression model. Differences were considered significant at p < 0.05. The 1, 3, 5 and 10-year overall survival rates were 90.6%, 51%, 27.5%, and 16.9%, respectively. The univariate analysis revealed a statistically significant difference (p < 0.05) in overall survival in relation to: grade of differentiation of the primary cancer (5-year survival of grades G1-G2 vs grades G3-G4: 30.7% vs 14.4%, p = 0.0016), preoperative CEA level > 5 and > 200 ng/ml (5-year survival of CEA < 5 ng/ml vs CEA > 5 ng/ml: 51.1% vs 15.5%, p = 0.0016; 5-year survival of CEA < 200 ng/ml vs CEA > 200 ng/ml: 27.9% vs 17.4%, p = 0.0001), diameter of major lesions > 5 cm (5-year survival of diameter < or = 5 cm vs > 5 cm: 30.0% vs 18.8%, p = 0.0074), disease-free interval between primary tumour and liver metastases longer than 12 months (5-year survival of patients with disease-free interval < or = 12 months vs > 12 months: 23.0% vs 36.1%, p = 0.042), high MSKCC-CRS (5-year survival of MKSCC-CRS 0-1-2 vs 3-4-5: 36.4% vs 1 6.3%, p = 0.017). The multivariate analysis showed three independent negative prognostic factors: G3-G4 primary cancer, CEA level > 5 ng/ml, and high MSKCC-CRS class. No single prognostic factor turned out to be associated with such disappointing outcomes after hepatic surgery for colorectal liver metastases as to permit the identification of specific subgroups of patients to be excluded on principle from undergoing liver resection. However, in the presence of a number of specific prognostic factors (G3-G4 grade of differentiation of the primary tumour, preoperative CEA level > 5 ng/ml, high MSKCC-CRS) enrolment of the patient in trials exploring new diagnostic tools or new adjuvant treatments may be suggested to improve the preoperative staging of the disease and reduce the incidence of tumour recurrence after liver resection.

Age Factors↗

[Multivariate analysis on prognostic factors of non-Hodgkin's lymphoma].

OBJECTIVE: To predict the prognostic factors and to improve the response and survival in intermediate-grade and high-grade non-Hodgkin lymphoma (NHL). METHODS: 200 patients with intermediate-grade and high-grade NHL were treated with chemotherapy. A multivariate Cox model was used to analyse the prognostic factors that significantly affect the treatment outcome. The variables examined included: sex, age, clinic stage of disease, B symptoms, extranodal sites, bone marrow involvement, tumor bulk, performance status (ECOG) and malignancy grades. RESULTS: Multivariate analysis showed that performance status, the number of extranodal sites, pathologic malignancy grade and tumor bulk were significantly independent prognostic factors. These factors were put together to construct a prognostic index formula. The index partitioned the patients into low risk group (PI -2.43(-)-1.30), intermediate risk group (PI -1.29-1.0) and high risk group (PI > 1.0) giving 5-year survival rates of 76.0%, 21.6% and 7.4%, respectively. CONCLUSION: The prognostic index formula and subgroups could serve as a reference to distinguish patients requiring more intensive chemotherapy and autologous stem cell transplantation from those who should be treated with standard regimens in order to improve the prognosis.

Adolescent↗

Expression of heat-shock proteins is associated with major adverse prognostic factors in acute myeloid leukemia.

To identify prognostic factors alternative or additional to drug-resistance and apoptosis proteins, we studied the impact of the expression of heat-shock proteins (HSPs) in 98 newly diagnosed acute myeloid leukemia (AML). HSP27 was expressed by 39%, HSP60 by 26%, HSP70 by 58%, HSP90 by 41%, and HSP110 by 30% of cases. HSP expressions were correlated with that of differentiation antigens (CD34, CD14, CD15, CD33) and that of drug-resistance (MRP, MRK) and apoptosis (Bcl-2) proteins. HSP90 and HSP110 were correlated with FAB subtype and karyotypic grouping. Complete remission (CR) was obtained in 68 cases (69%). Median disease-free survival (DFS) of the 68 remitters was 18.1 months with a 3-year DFS rate of 41%. CR rates were higher in patients with lower expression of HSPs. Overall survival (OS) was significantly longer in patients with lower expression of HSPs. Cytogenetics, CD34 positive expression, MRK positive expression, and HSP110 positive expression remained as pejorative prognostic factors for OS in the multivariate analysis. When considering patients with intermediate risk cytogenetics, HSP110 and MRP positive expressions and CD33 negative expression were of poor outcome, while HSP27 and HSP60 positive expressions appeared of pejorative prognostic value in patients with unfavorable karyotypes.

Acute Disease↗

Luteinizing hormone-releasing hormone agonist monotherapy for prostate cancer: outcome and prognostic factors.

BACKGROUND: We assessed the outcome and prognostic factors in men with prostate cancer after luteinizing hormone-releasing hormone agonist monotherapy. METHODS: Between April 1998 and August 2002, 62 men with prostate cancer who were treated with monotherapy at our institution were included in this analysis. Prostate-specific antigen (PSA) failure-free (bNED) survival was calculated using Kaplan-Meier methods. Prognostic factors were evaluated using Cox proportional hazards regression model. RESULTS: We reviewed the data of patients, with a median follow-up from the commencement of monotherapy of 26 months. The overall survival rate at 3 years was 89.9%. The bNED survival rate was 63.7% at 3 years. Of the 20 patients with clinical stage B, 2 progressed to PSA failure, whereas PSA failure was seen in 8 of 30 patients with stage C and 8 of 12 patients with stage D. The significant factors for bNED status were an initial PSA level of <30 ng/ml (p=0.0044), achievement of PSA nadir level of <2.0 ng/ml (p<0.001), and Gleason score of or=30 ng/ml, and high Gleason score of >or=7 are at increased risk for PSA failure. Failure to achieve PSA nadir level of <2.0 ng/ml is an important predictor of the progression. The use of PSA nadir can provide useful guidelines for the reconsideration of treatment in patients who have received monotherapy.

Aged↗

Are angiogenic factors, cytokines, and soluble adhesion molecules prognostic factors in patients with renal cell carcinoma?

Angiogenesis has an important role in the progression of solid tumors. Therefore, we measured the blood levels (ELISA) of angiogenic factors [basic fibroblast growth factor (bFGF), hepatocyte growth factor/scatter factor, and vascular endothelial growth factor (VEGF)] and soluble adhesion molecules [E-selectin, intercellular adhesion molecule (ICAM-1), platelet endothelial cell adhesion molecule-1, and vascular cell adhesion molecule-1] in 76 consecutive patients with untreated renal cell carcinoma and 41 healthy controls to evaluate their prognostic value. The serum levels of bFGF, hepatocyte growth factor, and VEGF were significantly higher in patients with renal cancer than they were in healthy subjects. bFGF and VEGF values were significantly higher in patients with disseminated cancer (N+ and/or M+) than they were in those with undisseminated (M-N-) cancer: median = 27 pg/ml, range = 5-118, n = 15 versus median = 8 pg/ml, range = 1-149, n = 61 (P = 10(-4)) for bFGF; and median = 883 pg/ml, range = 200-2317, n = 15 versus median = 278 pg/ml, range = 0-1704, n = 61 (P = 0.006) for VEGF. The blood levels of ICAM-1 and vascular cell adhesion molecule-1 were significantly higher, and the levels of E-selectin and platelet endothelial cell adhesion molecule-1 were significantly lower in patients with renal cancer than they were in controls. Plasma ICAM-1 was higher in metastatic patients (M+) than they were in nonmetastatic (M-) patients: median = 687 ng/ml, range = 294-1091, n = 12 versus median = 408 ng/ml, range = 217-1375, n = 64 (P = 10(-4)). ICAM-1 and bFGF blood values were correlated with the size of the primary tumor. The interleukin 6 and tumor necrosis factor-alpha (TNF-alpha) values of these patients have been previously published and are included in the survival analysis. Univariate analysis showed that bFGF, ICAM-1, interleukin 6, and TNF-alpha, before treatment, were prognostic factors. In multivariate analysis for proportional hazard regression, only TNF-alpha was an independent prognostic indicator, with a normal plasma TNF-alpha being highly predictive for a good prognosis in patients with untreated renal cell carcinoma.

Adult↗

Extent of hepatic resection as a prognostic factor for small, solitary hepatocellular carcinomas.

The prognostic factors for solitary hepatocellular carcinomas with a maximum tumor diameter of < or = 3 cm were investigated in 59 of 231 patients who underwent curative hepatic resections at the Department of Surgery II, Nagoya University Hospital between January 1981 and December 1991. The 3- and 5-year survival rates of these 59 patients were 61% and 41%, respectively. As prognostic factors, tumor maximum diameter, vascular invasion, capsule formation, cell differentiation, tumor localization, hepatic functional reserve, extent of hepatic resection, and macroscopic surgical margin were selected in this study. Of the patients with a tumor size > 1.5 cm, those who underwent major hepatic resections (hepatic lobectomy or segmentectomy) tended to have better survival than patients who received minor hepatic resections (hepatic subsegmentectomy or limited resection). Although most patients with a tumor size < or = 1.5 cm underwent minor hepatic resections, they had a good survival rate. According to Cox's multivariate analysis, the extent of hepatic resection was significantly correlated with long-term prognosis of patients with a solitary hepatocellular carcinoma < or = 3 cm in diameter, but the macroscopic surgical margin was not. Cell differentiation, vascular invasion, capsule formation, and tumor localization were all correlated with the long survival. These results suggest that the selection of an adequate operative procedure is an important factor for the long-term prognosis of patients with small, solitary hepatocellular carcinomas.

Adult↗

Decrease of interleukin-2 secretion is a new independent prognostic factor associated with poor survival in patients with small-cell lung cancer.

BACKGROUND: We have previously shown that suppression of interleukin-2 (IL-2) secretion was mediated by transforming growth factor (TGF) beta 1 secreted by small-cell lung cancer (SCLC) tumor cells. We have also shown that IL-2 secretion was significantly impaired in patients with SCLC at the time of diagnosis. Reconstitution of cytokine secretion correlated with reduction of tumor load. These data suggested that the immune system was suppressed by the tumor. To address the clinical relevance of cytokine suppression in SCLC, we investigated the correlation of the level of IL-2 secretion with survival. PATIENTS AND METHODS: The significance of correlations between single parameters in the test groups was calculated by using the linear regression analysis, the Wilcoxon rank sum test and the exact test according to Fisher. Using the Kaplan-Meier method, the log-rank test and the Cox-regression model, we analysed the relation of IL-2 secretion in whole blood cell cultures from 52 patients with SCLC at the time of diagnosis to established prognostic factors relevant for survival in SCLC. RESULTS: Impairment of IL-2 secretion significantly correlates to survival in SCLC (P = 0.004). Further univariate and multivariate analysis showed that this prognostic factor is independent from other factors of prognostic relevance in SCLC, namely stage of disease, neurone specific enolase (NSE), lactate dehydrogenase (LDH), age, and sex. More important, the prognostic value of IL-2 secretion is comparable to the most predominant prognostic factors for survival in SCLC identified so far. In the final model of the cox regression analysis, the P-value for IL-2 secretion in relation to stage of disease was 0.012 and 0.019, respectively. CONCLUSIONS: IL-2 secretion at the time of diagnosis represents an independent prognostic factor for survival in SCLC. Although its prognostic value has to be confirmed in a larger group of patients, our results demonstrate that IL-2 secretion may play an important role in diagnosis and treatment of SCLC. Moreover, in contrast to other prognostic factors, impairment of IL-2 secretion may help to understand immunosuppression in SCLC and, thus, important elements of the pathogenesis of this disease.

Adult↗

Correlation between uptake of Tc-99m sestaMIBI and prognostic factors of breast cancer.

UNLABELLED: The purpose of this retrospective study was assessment of correlation between Tc-99m sestaMIBI uptake and some prognostic factors of breast cancer. The following prognostic factors have been included in this study: size of the tumour, age of the patients, axilla node involvement, oestrogen and progesterone receptor (ER, PR) status, grading system of Bloom-Richardson and Ki-67 antigen expression. METHODS: 79 patients were enrolled in this study, with 85 lesions confirmed as primary breast cancers. Mean age of patients was 53 years. Scintimammography (SMM) was performed after intravenous injection of 740MBq. At 5-10 min after injection standard planar images were obtained in prone lateral and anterior supine views. Assessment of correlation between known prognostic factors of breast cancer and uptake of MIBI (evaluated as a tumour to background ratio-TBR) was performed used non-parametric (Kendall-tau correlation) statistical analysis. RESULTS: There were 85 breast cancers (73 invasive ductal carcinomas, 11 DCIS (ductal carcinoma in situ) and 1 lobular carcinoma. There was positive correlation between TBR Tc-99m MIBI uptake and size of the tumour (t = 0.19, p = 0.01), presence of axilla node involvement (t = 0.2, p = 0.006) and also grade of the IDC tumours evaluated using Bloom-Richardson's criteria (t = 0.18, 0.03). There were negative correlation between TBR and presence of PR (t = -0.16, p = 0.02) and borderline negative correlation between TBR and age of patients (t = -0.137, p = 0.06) and also TBR and ER status (t = -0.135, p = 0.065). Patients who are younger and/or have PR or ER negative cancers have higher Tc-99m MIBI uptake. Patients who presented with high grade of malignancy (B-R) also have higher uptake of radiotracer. Also those with higher uptake of radiotracer often had axillary node involvement. This would suggest that more aggressive tumours have higher uptake of Tc-99m MIBI. Finally this study suggest correlation between in vivo uptake of MIBI and some of the known prognostic factors of breast cancer.

Breast Neoplasms↗

Expression of insulin-like growth factor I (IGF-I) in female breast cancer as related to established prognostic factors and long-term prognosis.

The expression of insulin-like growth factor I (IGF-I) was analysed immunohistochemically in a series of 211 breast cancers with special emphasis on its relationship to conventional prognostic factors and long-term prognosis. Altogether, IGF-I was expressed by the tumour cells in 91% of the breast carcinomas, and by stromal cells in 29%. The expression of IGF-I in cancer cells was weakly related to a high proportion of intraductal growth (P = 0.032), distinct tumour margins (P = 0.048) and high S-phase fraction (P = 0.074). In a univariate analysis, IGF-I expression in cancer cells was significantly related to a high survival probability in the entire cohort (P = 0.0144) as well as in the axillary lymph node positive tumours (P = 0.0286). Alternatively, expression of IGF-I in the stromal cells was related to metastasis at the time of diagnosis (P = 0.05), tumour diameter (P = 0.04), DNA ploidy (P = 0.07) and nuclear pleomorphism (P = 0.025), but it was without prognostic significance in a univariate analysis (P > 0.1). In a multivariate analysis, the conventional prognostic factors were superior to IGF-I expression in predicting the disease outcome, albeit expression of IGF-I in tumour stroma showed some independent prognostic significance in axillary lymph node negative tumours. The results suggest that IGF-I expression is related to malignant histopathological features in breast cancer, and expression of IGF-I has independent prognostic significance in the early phases of the disease.

Adult↗

Oligodendroglioma: an analysis of prognostic factors and treatment results.

This study, an analysis of variable prognostic factors affecting the treatment outcome for patients with oligodendroglioma, included a retrospective analysis of the medical charts of patients diagnosed with oligodendroglioma treated at our institution between 1975 and 1997. The endpoints analyzed were the progression-free survival (PFS), as well as the overall survival. The factors analyzed included extent of surgery, postoperative radiotherapy, pathologic grade, performance status, age, and sex. Of a total of 37 cases, 19 were male and 18 were female. The median age at diagnosis was 30 years. The most common presenting symptoms were headache (78%), seizures (43%), motor symptoms (38%), and to a lesser extent behavioral changes (16%). The median duration of symptoms was 9 months. The most common location on computed tomography or magnetic resonance imaging scans was the frontal region (43%). Low grade tumors (grades I and II) were found in 60% of patients, and the remaining 40% had high grade tumors (grades III and IV). Eight patients had complete surgical excision, whereas 27 patients had partial excision, and two patients had biopsy only. The operative mortality rate was 14%. There were 24 patients who received postoperative radiotherapy, and only 3 patients received adjuvant chemotherapy. The median postoperative radiation dose was 5,580 cGy. With a median follow-up of 7 years, the 5-year PFS and overall survival for the whole group were 58% and 67%, respectively. The pathologic grade of the tumor was the only prognostic factor significantly affecting both PFS and overall survival. The 5-year PFS for patients with low grade tumors was 79% in comparison to 32% for patients with high grade tumors (p < 0.01). Patients with good performance status at initial presentation (performance status of 1 and 2) had a higher 5-year PFS in comparison to those with poor performance status (62% vs. 38%, respectively); however, this difference did not reach statistical significance. Similarly, patients who were subjected to complete surgical excision had a marginally higher PFS in comparison to those who had biopsy or partial excision (75% vs. 53%). There was no difference in the 5-year PFS between patients who received postoperative irradiation versus those who did not (51% vs. 47%, respectively). Patients with high grade oligodendrogliomas have a relatively poor prognosis. The pathologic grade of the tumor was the single most important prognostic factor significantly affecting both the PFS and overall survival. A prospective randomized clinical trial is needed to address the impact of postoperative irradiation on PFS of those tumors. In view of the poor outcome for patients with high grade oligodendroglioma, the use of adjuvant systemic chemotherapy should be studied in future multicenter randomized trials.

Adolescent↗

Current prognostic factors for prostate carcinoma.

BACKGROUND: Prostate carcinoma provides a wide spectrum for risk of death from the disease and clinicians have long sought methods to predict the outcome accurately in individual patients. Traditional prognostic factors, such as histologic grade and stage, remain valuable. Additional clinical and laboratory studies may add to the precision of predicting the natural history of the disease or response to therapy. METHODS: A review of the literature on current, well accepted prognostic factors for prostate carcinoma and evolving methodology for the incorporation of new factors was conducted. RESULTS: The most widely used current prognostic factors for survival of patients with prostate carcinoma include clinical and pathologic stage, histologic grade, prostate specific antigen (PSA) level, age, and comorbidity. DNA ploidy has been extensively studied on radical prostatectomy specimens and appears valuable, but is not widely employed. The utility of DNA ploidy on biopsy specimens is less certain because of both methodologic issues and heterogeneity within the tumor. The statistical tools used to identify and validate new prognostic factors are critical and new techniques are sought to incorporate several independent factors into a prognostic score or index for an individual patient. CONCLUSIONS: Current prognostic factors for prostate carcinoma provide important information for patient care and research. However, new methods to define pretreatment prognosis and needed to assist clinicians and patients in making therapeutic choices for prostate carcinoma. The ideal method with which to incorporate the information attained from anatomic stage, histologic grade, PSA level, age, and comorbidity into a manageable prognostic score is uncertain and studies on this topic should be a high priority research objective.

Age Factors↗

Persistence of myeloma protein for more than one year after radiotherapy is an adverse prognostic factor in solitary plasmacytoma of bone.

BACKGROUND: Prognostic factors for solitary plasmacytoma of bone (SPB), whether measured before or after radiotherapy (RT), have not been established. The authors analyzed multiple factors for myeloma-free survival (MFS) and cause-specific survival (CSS) in SPB patients treated with RT alone. METHODS: Between 1965 and 2000, 60 patients with carefully staged SPB were treated with RT alone at the M. D. Anderson Cancer Center. Patient ages ranged from 29-77 years (median, 54 years), and 75% of patients had a myeloma (M) protein in the blood and/or urine. No patients showed other lesions on skeletal survey or, in recent years, magnetic resonance imaging (MRI) of the spine; marrow aspirate was normal in all patients. Radiotherapy to the solitary lesion was given to a total dose of 30-70 Gy (median, 46 Gy). The authors analyzed the impact of multiple factors on MFS and CSS, including resolution v. persistence of M protein after RT, secretory v. nonsecretory disease at diagnosis, presence v. absence of an associated soft tissue mass on computed tomography or MRI scan, magnitude of serum M protein elevation at diagnosis, age, spinal v. nonspinal location, Karnofsky performance status, total RT dose, and tumor size. RESULTS: Median follow-up was 7.8 years (range, 1.0-25.5 years). On multivariate analysis, persistence of M protein more than one year after RT was the only independent adverse prognostic factor for MFS (P = 0.005) and CSS (P = 0.04). Most patients with M protein that persisted for more than one year after RT were diagnosed with multiple myeloma within 2.2 years of treatment. CONCLUSIONS: Patients with M protein that persists for more than one year after RT should be monitored frequently and considered for standard chemotherapy followed by intensive consolidation therapy when they either develop symptoms or show an increasing M protein level.

Adult↗

Mitotic percentage index: a new prognostic factor for childhood medulloblastoma.

We investigated the prognostic significance of a new method of mitotic figure quantitation, 'mitotic percentage index' (MPI), tumour S phase fraction (SPF) and DNA ploidy measured by flow cytometry, and various clinical prognostic factors including age, sex, tumour stage, degree of surgical resection, radiotherapy dose and adjuvant chemotherapy in 70 cases of childhood medulloblastoma diagnosed between 1968 and 1996. In univariate analysis, MPI (P < 0.0001), posterior fossa radiotherapy dose (P = 0.003), tumour stage (P = 0.014), craniospinal radiotherapy dose (P = 0.019), year of diagnosis (P = 0.024) and SPF (P = 0.048) were significantly related to survival. In multivariate analysis, including tumour c-erbB-2 oncogene product expression, only MPI (P < 0.0001), craniospinal radiotherapy dose (P = 0.003) and tumour stage (P = 0.035) retained independent prognostic significance, while age achieved significance (P = 0.039). A close relationship was observed between MPI and SPF (coeff = 0.8, P < 0.0001) and MPI and the percentage of tumour cells expressing the c-erbB-2 oncogene product (coeff = 0.416, P < 0.0001). This study has identified MPI as a new independent prognostic factor for childhood medulloblastoma. Its close relationship with tumour SPF confirms it as an accurate measure of tumour proliferation and its close relationship to expression of the c-erbB-2 oncogene supports a role for this growth factor receptor in the deregulation of normal mitogenic signal transduction in this malignancy.

Adolescent↗

Relevance of the expression of bcl-2 in combination with p53 as a prognostic factor in breast cancer.

BACKGROUND: Both the proto-oncogene bcl-2 and the tumour suppressor gene p53 are involved in the regulation of apoptosis. PATIENTS AND METHODS: We have investigated the prognostic value of the immunohistochemical expression of p53 and bcl-2 separately and in combination in a group of 345 breast cancer patients from one hospital with a long median follow-up of more than 10 years. RESULTS: Bcl-2 expression was not a prognostic factor. p53 was an independent prognostic factor for overall survival (p = 0.005) and for post-relapse survival (p = 0.006). Looking at bcl-2/p53 subgroups in the bcl-2 positive subgroup there was a large difference in both disease-free and overall survival between p53 negative and p53 positive patients. In the bcl-2 negative subgroup the p53 status was not a prognostic factor at all. CONCLUSIONS: p53 is an independent prognostic factor for overall survival and post-relapse survival. However, p53 status is only important in the bcl-2 positive subgroup.

Adult↗