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MDR 1 expression is an independent prognostic factor for response and survival in de novo acute myeloid leukaemia.

The Multidrug Resistance gene (MDR 1) is frequently expressed in acute myeloid leukaemia (AML). MDR 1 is associated with resistance to chemotherapy in vitro and with a poor response rate in AML. We have investigated the prognostic value of MDR 1 expression in relation to other patient characteristics with respect to response and survival. One hundred and thirty patients aged 0-88 years were treated for de novo AML with standard induction and consolidation chemotherapy. MDR 1 expression was determined by immunocytochemistry. Univariate and multivariate analyses were conducted to identify prognostic factors for reaching complete remission (CR) and for overall survival from diagnosis, in order to compare MDR 1 with known prognostic factors. Univariate analysis showed that higher MDR 1 expression was an adverse prognostic factor for CR (P<0.001), as was higher age (P<0.001) and unfavourable karyotype (P<0.01). These factors were also negative prognostic factors for overall survival (P<0.001, P<0.05 and P<0.005, respectively). In the multivariate analysis MDR 1 (P<0.001), higher age (P<0.001) and karyotype (P<0.01) were independent adverse prognostic factors for CR as well as for overall survival (P<0.001, P<0.005, P<0.001, respectively). Our data indicate that MDR 1 expression is a disease-related unfavourable prognostic factor which has a significant impact on complete remission and overall survival in AML. Analysis of MDR 1 may be used to determine prognosis in individual patients.

Acute Disease↗

A meta-analysis of reported correlations between prognostic factors in breast cancer: does axillary lymph node metastasis represent biology or chronology?

A statistical overview of published results on correlations between various prognostic factors in breast cancer was undertaken. A distinction was made between clinical (or anatomical) prognostic factors--namely, axillary lymph node status and tumour size--and eight different biological prognostic factors. The latter included: tumour grade, oestrogen and progesterone receptor status, thymidine labelling index, DNA ploidy, S-phase fraction, epidermal growth factor receptor expression and c-erbB-2 gene amplification (or overexpression). 139 articles were eligible for review which reported a total of 432 individual correlations. A simple form of meta-analysis was employed: the counting method, in which the number of studies achieving a statistically significant correlation or not were counted. For each possible correlation examined, the proportion of studies showing a statistically significant correlation was calculated and an exact binomial 99% confidence interval determined for that proportion. If the 99% confidence interval included 5% (the proportion of correlations that would be expected to be statistically significant if the null hypothesis was true), it was taken as failing to exclude the null hypothesis of a zero correlation, while if it excluded 5% it was taken as rejecting the null hypothesis of a zero correlation. A broad agreement was found among published reports on the existence of a statistically significant correlation between the various biological prognostic factors in breast cancer. Of the 20 correlations examined, 18 had a 99% confidence interval excluding 5%, thus rejecting the null hypothesis of a zero correlation. On the other hand, a completely different result was obtained when reports on possible correlations between lymph node status and tumour size on the one hand and the eight biological prognostic factors on the other were analysed. Of the 16 correlations examined, 13 had a 99% confidence interval including 5%, failing to reject the null hypothesis of a zero correlation. These observations suggest the hypothesis that the prognostic influence of node status and tumour size cannot be explained by an analysis of the biology of breast cancer; and is compatible with the contention that axillary node status is merely a reflection of the relative chronological age of breast cancer.

Breast Neoplasms↗

Prognostic factors and scoring systems in myelodysplastic syndromes.

BACKGROUND AND OBJECTIVE: Great prognostic heterogeneity complicates therapy-planning and a correct evaluation of clinical trials in myelodysplastic syndromes (MDS). Thus, the development of a prognostic classification of MDS is of major clinical relevance, especially when the advanced age of most patients and the aggressiveness of the curative treatment modalities currently available are considered. This review summarizes the results of different studies focusing on prognostic factors in MDS and deals with the pros and cons of prognostic scoring systems that have been recently developed. It also discusses the prognostic factors of particular subtypes of patients and those isolated with certain treatment options. EVIDENCE AND INFORMATION SOURCES: The authors of the present review have been working in different areas of the field of MDS for several years, have contributed original papers on the prognostic factors and therapy of these disorders, and have taken part in the recent International MDS Risk Analysis Workshop that has resulted in the development of the International Prognostic Scoring System (IPSS) for MDS. STATE OF THE ART AND PERSPECTIVES: The percentage of marrow blasts, cytogenetic pattern and number and degree of cytopenias are the most powerful prognostic indicators in MDS. Although some limitations are evident, the recently developed scoring systems, and particularly the IPSS, are extremely useful for predicting survival and acute leukemic risk in individuals with MDS and should be incorporated to the design and analysis of therapeutic trials in these disorders. A risk-adapted treatment strategy is now possible and highly recommended for MDS patients.

Humans↗

Multivariate analysis of histopathologic prognostic factors for invasive cervical cancer treated with radical hysterectomy and systematic retroperitoneal lymphadenectomy.

BACKGROUND: The aim of this study was to identify the independent histopathologic prognostic factors for patients with cervical carcinoma treated with radical hysterectomy including paraaortic lymphadenectomy. METHODS: A total of 187 patients with stage IB to IIB cervical carcinomas treated with radical hysterectomy and systematic retroperitoneal lymphadenectomy were retrospectively analyzed. The median follow-up period was 83 months. Cox regression analysis was used to select independent prognostic factors. RESULTS: Using multivariate Cox regression analysis, lymph node (LN) status (negative vs. metastasis to pelvic nodes except for common iliac nodes vs. common iliac/paraaortic node metastasis), histopathologic parametrial invasion, lymph-vascular space invasion (LVSI), and histology of pure adenocarcinoma were found to be independently related to patients' poor survival. For patients who had a tumor histologically confined to the uterus and have neither parametrial invasion nor lymph node metastasis, LVSI was the most important prognostic factor, and histologic type, depth of cervical stromal invasion, and tumor size were not related to survival. The survival of patients with a tumor extending to parametrium or pelvic lymph node(s) was adversely affected by histology of pure adenocarcinoma. When the tumor extended to common iliac or paraaortic nodes, patients' survival became quite poor irrespective of LVSI or histologic type of pure adenocarcinoma. Patients' prognosis could be stratified into low risk (patients with a tumor confined to the uterus not associated with LVSI: n = 80), intermediate risk (patients with a tumor confined to the uterus associated with positive LVSI, and patients with squamous/adenosquamous carcinoma associated with pelvic lymph node metastasis or parametrial invasion: n = 86), and high risk (patients with pure adenocarcinoma associated with pelvic lymph node metastasis or parametrial invasion, and patients with common iliac/paraaortic node metastasis: n = 21) with an estimated 5-year survival rate of 100 +/- 0 (mean +/- SE)%, 85.5 +/- 3.9%, and 25.1 +/- 9.7%, respectively. CONCLUSIONS: LN status, parametrial invasion, LVSI, and histology of pure adenocarcinoma are important histopathologic prognostic factors of cervical carcinoma treated with radical hysterectomy and systematic retroperitoneal lymphadenectomy. Prognosis for patients with cervical carcinoma may be stratified by combined analysis of these histopathologic prognostic factors. Postoperative therapy needs to be individualized according to these prognostic factors and validated for its efficacy using randomized clinical trials.

Adenocarcinoma↗

[Prognostic factors in operated breast carcinoma].

The traditional prognostic factors (tumour size, lymph node involvement, receptor status) have now been shown to have limits in terms of prognostic definition. These limits may be partially overcome when parameters exist to determine the extent of tumour biological aggression and the patient's degree of immune response. It is important to clarify these links because they may lead to more precise indications regarding the prognosis and choice of therapy, above all in cases of breast cancer operated with no lymph node involvement. Breast carcinoma is often surrounded by inflammatory cells showing host and tumour interaction. The aim of this study was to evaluate the prognostic value of lymphocyte infiltration in operated breast cancer. The degree of lymphocyte infiltration observed in 56 breast cancer patients was compared with other prognostic factors (tumour size, lymph node status, histological variants, necrotic areas and desmoplastic reaction). This preliminary study allowed the authors to examine the degree of peritumoral lymphocyte density as an important predictive index of overall survival in patients with breast cancer and N-.

Adult↗

[Survival and prognostic factors of colorectal adenocarcinoma: analytic multifactor review of 150 cases].

INTRODUCTION: Prognostic factors have a pivotal role in clinical oncology. They are helpful in the selection of treatment; provide insights into the disease process and the therapic response. The number of possibility useful prognosis factors in the colorectal cancer is large. This study attempts to observe the survival of colorectal adenocarcinoma and to find prognostic factors and other variables potentially associated with outcome of colorectal adenocarcinoma. MATERIAL AND METHODS: It's a retrospective study based on 150 patients with colorectal adenocarcinoma from 1990 to 2002. There were 150 patients aged of 58 years (median 61 years) with 1.4 sex-ratio. 84 patients had colon adenocarcinoma and 66 patients had rectal adenocarcinoma. In histological exam the adenocarcinoma was well differenced in 69 cases (46%), and undifferentiated in 17 cases (18, 3%). RESULTS: Locoregional extension was found in 18 cases and metastatic extension in 45 cases with hepatic metastasis in 37 cases and pulmonary metastasis in 8 cases. There were 6 cases of peritoneal localized carcinosis and 6 cases of ovary metastasis. There were 6 patients (4%) Dukes stage I TNM, 61 stage II (40, 7%), 51 stage III TNM (34%) and 32 patients stage IV TNM (34%). All patients had surgical curative resection associated with adjuvant chemotherapy in 60 cases of colon adenocarcinoma and preoperative radiotherapy in 33 cases of rectal adenocarcinoma. After a follow up of 46 months, 52 patients was died (10 operative mortality), 35 patients were lost of view and 63 patients were still alive at the point date. Median survival was 20 months with 95% confidence interval: (4, 2-7, 8). Overall one year and 5 years survival were respectively 92,8% and 26,3%. Various prognostic factors had been identified through univariate (Kaplan-Meier) then multivariate (Cox) analyze. In addition to the clinical factors, we found of significant prognostic value undifferentiated adenocarcinoma and an elevated value of serum carcinoembryonic antigen>5 ng/ml.

Adenocarcinoma↗

Integration of estrogen and progesterone receptors with pathological and molecular prognostic factors in breast cancer patients.

In this study we have examined biopsies from women with localized primary breast cancer to investigate the prognostic performance of estrogen receptors (ER) and progesterone receptors (PR) for estimating the metastatic probability of the patients, and to explore whether discrimination gets better by combining clinicopathological and other molecular parameters into a score. This prospective study involved 205 patients with a median follow-up of 5 y. Among the evaluated clinicopathological data were: patient's age; tumor size; axillary lymph node involvement; and tumor grade. The most representative tumor samples were derived to a single laboratory for immunohistochemical evaluation of the following molecular markers: ER, PR, proliferating cell nuclear antigen (PCNA), p53 protein product, erbB-2 (HER-2/neu) oncoprotein, and P170 glycoprotein (mdrl gen product). Distant metastases (study endpoint) appeared in 19.5% (40/205) of the patients, most of these patients presented a mixture of poor, regular and good prognostic factors. Disease-free survival analysis procedures (Kaplan-Meier method) identified tumor size, axillary lymph node involvement, tumor grade, receptor status, PCNA, p53, erbB-2 and P170 as useful prognostic factors. Proportional hazard regression analysis (Cox) identified in order of importance erbB-2, tumor size, receptors status, tumor grade and PCNA as useful prognostic factors. To facilitate the evaluation of the prognostic factors, a practical and simple score system was derived. A high pathological score identified 65% of the patients that developed distant metastases, while a high molecular score was obtained in 57% of patients with metastatic disease. There was a significant improvement in the diagnosis of probability of being with distant metastases when the pathological score was combined with the molecular score, 82% of the patients with distant metastases showed an elevated combined score. Validation of this scoring system will need further larger studies (validation set as opposed to the training set used in the present study). Due to the complexity of events in cancer, the evaluation of a combination of prognostic factors should be of value to clinicians to make a more objective estimate of the prognosis of individual breast cancer patients.

ATP Binding Cassette Transporter, Subfamily B, Mem↗

Clinical prognostic factors for patients with recurrent head and neck cancer: implications for randomized trials.

The purpose of our study was to determine the clinical prognostic factors for the duration of the overall survival from recurrence (OSR) in patients with recurrent head and neck squamous-cell carcinoma. We performed a retrospective analysis on 496 patients treated between 1982 and 1993 at the Antoine Lacassagne Center. The significant favorable prognostic factors for the OSR were: initial T(1-2) (p = 0.008), no initial nodal involvement (p = 0.002), no initial chemotherapy exposure (p = 0.002), induction chemotherapy response (p = 0.001), duration of disease-free interval (DFI; p = 0.0001), performance status (PS) 0-1 (p = 0.004) and local-regional recurrence (p = 0.001). In the multivariate analysis, the apparent nonsignificance of all factors apart from the DFI suggested that relevant prognostic factors could be embedded in the DFI. Multivariate analysis was performed after excluding the DFI. The results indicated that local-regional recurrence, PS 0-1 and no initial chemotherapy exposure remained significant favorable prognostic factors for the OSR. The advantages of taking into account such prognostic factors are to eliminate the patient selection bias and to ensure a fairer comparative evaluation of new or already existing agents in recurrent head and neck cancer.

Adult↗

Prognostic factors for survival in adult patients with cerebral low-grade glioma.

PURPOSE: To identify prognostic factors for survival in adult patients with cerebral low-grade glioma (LGG), to derive a prognostic scoring system, and to validate results using an independent data set. PATIENTS AND METHODS: European Organization for Research and Treatment of Cancer (EORTC) trial 22844 and EORTC trial 22845 are the largest phase III trials ever carried out in adult patients with LGG. The trials were designed to investigate the dosage and timing of postoperative radiotherapy in LGG. Cox analysis was performed on 322 patients from EORTC trial 22844 (construction set), and the results were validated on 288 patients from trial 22845 (validation set). Patients with pilocytic astrocytomas were excluded from this prognostic factor analysis. RESULTS: Multivariate analysis on the construction set showed that age > or = 40 years, astrocytoma histology subtype, largest diameter of the tumor > or = 6 cm, tumor crossing the midline, and presence of neurologic deficit before surgery were unfavorable prognostic factors for survival. The total number of unfavorable factors present can be used to determine the prognostic score. Presence of up to two of these factors identifies the low-risk group, whereas a higher score identifies high-risk patients. The validity of the multivariate model and of the scoring system was confirmed in the validation set. CONCLUSION: In adult patients with LGG, older age, astrocytoma histology, presence of neurologic deficits before surgery, largest tumor diameter, and tumor crossing the midline were important prognostic factors for survival. These factors can be used to identify low-risk and high-risk patients.

Adult↗

[Clinical features and prognostic factors of fulminant hepatic failure in Koreans].

BACKGROUND/AIMS: There have been scant reports on the prognostic factors of fulminant hepatic failure for selecting the patients who need liver transplantation. We investigated the clinical features and prognostic factors throughout the clinical course of the disease in Korean patients with fulminant hepatic failure. METHODS: Between 1992 and 2003, a total of 60 patients with fulminant hepatic failure were divided into the survival group and the non-survival group, and these groups were compared according to gender, age, etiology, values of the laboratory tests, grade of the encephalopathy that was obtained at the time of admission and the worst clinical status (hepatic encephalopathy). RESULTS: The mean age of the total patients was 40.9 years (M:F=31:29) and the survival rate was 28.3% (n=17). Drugs (n=25, 12 herbal medicines) and viral infection (n=24, 18 HBV infection) were most common causes. On univariate analysis, the WBC, AST, ALT, total bilirubin and HE IV stage at the time of admission were the significant factors for a poor prognosis. Total bilirubin, albumin and HE IV stage also remained as significant factors at the time of the worst clinical status. On multivariate analysis, total bilirubin (P=0.033) and ALT (P=0.042) at admission were the prognostic factors, and the progression to HE IV stage (P=0.019) or hypoalbuminemia (P=0.028) during hospitalization represented the significant factors for a poor prognosis. CONCLUSIONS: In contrast to Western countries, HBV infection and herbal medicines were major causes of fulminant hepatic failure in Korea. The total serum bilirubin level and progressive hyperbilirubinemia with HE (stage IV) during hospitalization seemed to be the most important prognostic factors, and liver transplantation should be considered before the patient reaches this status.

Adult↗

Prognostic factors in stage I ovarian carcinoma.

Most studies on prognostic factors in stage I ovarian carcinoma have been hampered by a relative small number of patients included. In this study we identified the most important independent clinical and pathological prognostic factors in stage I epithelial invasive ovarian carcinoma in a large data base of 1545 patients with stage I epithelial ovarian carcinoma. The patients were treated in 6 different countries but were analysed in the same way. Because of the increasing use of endoscopy to remove possibly malignant cysts and the reports on rapid spread of ovarian carcinoma in the peritoneal cavity after laparoscopic removal of ovarian cancers, special attention was made to the presence and timing of the cysts before or during surgery. The multivariate analyses identified degree of differentiation as the most powerful prognostic indicator of disease-free survival, followed by rupture before surgery, rupture during surgery, International Federation of Gynaecology and Obstetrics (FIGO) 1973 stage and age. When the effects of these factors were accounted for, none of the following were of prognostic value for disease-free survival: histological type, dense adhesions, extracapsular growth, ascites, FIGO stage 1988, and size of tumour. In conclusion, degree of differentiation was the most powerful prognostic indicator in Stage I ovarian cancer and should be used when deciding therapy in clinical practice. We also strongly advocate the inclusion of degree of differentiation in a new FIGO classification of stage I ovarian carcinoma. In addition, rupture before and during surgery, FIGO Stage 1973 (Ib versus Ia) and age were shown to be independent prognostic factors. Hence, every effort should be made to avoid rupture during primary surgery of malignant ovarian tumours confined to the ovaries.

Carcinoma↗

[Significance of medical data availability for the assessment of prognostic factors in cancer patients. Analysis based on a study of cervical cancer population].

The aim of this study was to estimate the availability of medical records (MR) in population study based on Cancer Registries (CR) data, and to investigate weather the availability of MR correlates with favourable prognostic factors in cervical cancer patients. The cohort consisted of 1386 patients diagnosed between 1993 and 1996 and registered at CR in three Polish cities: Kielce, Opole and Warsaw. Population of these areas covers about 10% of Polish population. The data became amended with information from MR on stage, histopathology and first treatment. The place of living and availability of MR were also considered as prognostic factors. Chi square test was used to compare the differentiation of distribution of prognostic factors between two groups: patients for whom MR were available and remaining group with information available from CR only. A multivariate regression analysis was applied for the evaluation of prognostic factors. MR, available for 75,4% patients, combined with CR data, formed the high quality database allowing analysis of prognostic factors. The availability of MR correlated with more favourable prognostic factors (p<0.0001): earlier stage of disease, younger age and category of microscopic diagnosis. Multivariate analysis confirmed the prognostic meaning of the stage of disease, place of living and availability of MR, however, the last factor was not significant. The analysis confirmed the necessity of including selected clinical prognostic factors into routinely collected data by population CR to allow monitoring of effectiveness of any cancer control project and evaluation of cancer health indicators as recommended by IARC/WHO in EUROCHIP Project.

Adenocarcinoma↗

Problems in defining cutoff points of continuous prognostic factors: example of tumor thickness in primary cutaneous melanoma.

Continuous prognostic factors are often categorized by defining optimized cutoff points. One component of criticism of this approach is the problem of multiple testing that leads to an overestimation of the true prognostic impact of the variable. The present study focuses on another crucial point by investigating the dependence of optimized cutoff points on the observed distribution of the continuous variable. The continuous variable investigated was the vertical tumor thickness according to Breslow, which is known to be the most important prognostic factor in primary melanoma. Based on the data of 5093 patients, stratified random samples were drawn out of six artificially created distributions of tumor thickness. For each of these samples, Cox models were calculated to explore optimized cutoff points for tumor thickness together with other prognostic variables. The optimized cutoff points for tumour thickness varied considerably with the underlying distribution. Even in samples from the same distribution, the range of cutoff points was amazingly broad and, for some of the distributions, covered the whole region of possible values. The results of the present study demonstrate that optimized cutoff points are extremely data dependent and vary notably even if prerequisites are constant. Therefore, if the classification of a continuous prognostic factor is necessary, it should not be based on the results of one single study, but on consensus discussions including the findings of several investigations.

Female↗

Prognostic factors and long-term survivorship in patients with recurrent or metastatic carcinoma of the head and neck.

BACKGROUND: The current study was conducted to identify prognostic factors and report the characteristics of long-term survivors in patients with recurrent or metastatic carcinoma of the head and neck who were treated with cisplatin-based combination chemotherapy in two randomized, Phase III trials conducted by the Eastern Oncology Cooperative Group (ECOG) (E1393 and E1395). METHODS: The authors analyzed prognostic factors for response and survival by combining data from the E1393 trial, which compared cisplatin plus paclitaxel at two dose levels, with data from the E1395 trial, which compared cisplatin plus paclitaxel with cisplatin plus 5-fluorouracil (5-FU), using logistic regression and Cox regression models. RESULTS: A total of 399 eligible patients were included. The median follow-up was 4.7 years. The 1-year overall survival (OS) rate for all patients was 32%, the median OS was 7.8 months, and the objective response rate was 32%. On multivariate analysis, the following were found to be independent unfavorable predictors of objective response: weight loss of > 5%, an ECOG performance status of 1 (vs. 0), residual disease at the primary tumor site, a primary tumor site other than the oropharynx, prior radiation therapy (RT) (P = 0.056), and well/moderate tumor cell differentiation (P = 0.067). Independent unfavorable prognostic factors for OS were weight loss, an ECOG performance status of 1 (vs. 0), well/moderate tumor cell differentiation, a primary tumor in the oral cavity or hypopharynx, and prior RT. The following were found to be independent unfavorable prognostic factors for time to disease progression: well/moderate tumor cell differentiation, a oral cavity or hypopharyngeal primary tumor, and prior RT. Patients with < or = 2 adverse prognostic factors were reported to have a median OS of 1 year, whereas patients with 3-5 adverse prognostic factors were found to have a median OS of 0.5 years (P < 0.0001). Forty-nine patients (12%) survived for > or = 2 years and 6 patients were alive at 5 years. Two-year survivors were more likely to have achieved an objective response to chemotherapy, have poor tumor cell differentiation, be white, have an ECOG performance status of 0, and have received no prior RT. CONCLUSIONS: Clinical parameters and tumor cell differentiation appear to be strong pretreatment predictors of outcome in patients with carcinoma of the head and neck and should be considered in the design of future randomized trials. A small percentage of patients with recurrent head and neck carcinoma can achieve long-term survival.

Adult↗

Conjunctival low-grade non-Hodgkin's lymphoma: a large single-center study of initial characteristics, natural history and prognostic factors.

To define the initial characteristics and prognostic factors of patients with conjunctival low-grade malignant lymphoma, all patients treated for low-grade lymphoma with initial conjunctival involvement were reviewed. Forty-nine cases were selected, including 45 cases with exclusive ophthalmologic conjunctival involvement. Pathologic review showed 55% of mucosa-associated lymphoid tissue type lymphoma, and 23% of lymphoplasmocytic lymphoma. Initial characteristics were median age of 62 years, nodal involvement in 17% of cases, and stage IV in 22% of patients with 10% of bone marrow involvement. With a median follow-up of 75 months, the 5-year disease-free survival (DFS) and overall survival were 65% and 83%, respectively. On multivariate analysis, nodal involvement was the only factor with a pejorative impact on DFS. Our patient cohort represents one of the largest published series defining the characteristics and prognostic factors of primary conjunctival low-grade malignant lymphoma.

Age Factors↗

[Multi-center study of recurrent nasal sinus polyposis: prognostic factors and possibility of prophylaxis].

Today, surgery is the treatment of choice for nasal sinus polyposis. Nevertheless, although meticulous surgery does "per se" reduce the percentage of recurrences, there are cases where even the most painstaking removal of the entire pathology cannot prevent recurrence. Therefore recurrences do not appear linked to the type of surgery; rather onset appears linked to intrinsic, only partially recognizable factors responsible for the primary and secondary polypogenesis. In order to identify negative prognostic factors which might be implicated in recurrences, the present study extrapolated the data from forms on 181 patients who had undergone surgery for nasal sinus polyposis and subjected it to multivariance analysis. These patients were recruited during the course of a multicenter study with the participation of 12 ENT Centers in Piemont and Liguria. The recurrence rate was 13%. In analyzing unfavorable factors prognosticating recurrence, thirteen parameters were examined. Nine of these (age, sex, severe deviation of the septum causing restriction, severe turbinate hypertrophy, surgery or repeat surgery for recurrence, type of macro-micro endoscopic surgery, allergy to seasonal inhalants, allergy to perennial inhalants, mixed allergies) did not prove to have any significance in recurrences. The presence of bilateral involvement of the sinus system presented a negative trend as regards recurrences while involvement of more than one subsite (anterior ethmoid, posterior ethmoid, maxillary sinus, sphenoid), ASA and NSAID intolerance and abundant eosinophilic infiltration in the mucous chorion proved statistically significant (p < 0.05 for all three parameters) for recurrence. Post-operative topic prophylactic treatment with steroids (beclomethasone) or anti-H1 drugs (azelastin, HCl) did not appear to affect the onset of recurrence although it did have a positive effect on subjective symptoms.

Anti-Inflammatory Agents↗

Reemphasis on lymphoblast L2 morphology as a poor prognostic factor in childhood acute lymphoblastic leukemia.

BACKGROUND: In childhood acute lymphoblastic leukemia (ALL), the relationship between lymphoblast L1/L2 morphology and prognosis is controversial. According to some studies L2 morphology is associated with poor prognosis, whereas in others the association disappears after adjustment for other known risk factors. PROCEDURE: We investigated the prognostic importance of lymphoblast L1/L2 morphology in childhood ALL treated with current Nordic ALL protocols in Finland. From the routine bone marrow (BM) aspirate and biopsy slides of 251 children with ALL diagnosed in 1990-1995, the blast cell morphology and early treatment responses were assessed blindly in a central review, using French-American-British (FAB) criteria with the Children's Cancer Group (CCG) modification. RESULTS: L1 morphology (>90% L1) was found in 197 (80%) children and L2 (>/=10% L2) in 49 (20%). Early treatment response was poorer in L2 than in L1: >5% blasts in the marrow on day 15 were seen in 27% of L2 as opposed to 12% of L1 (P = 0.048). The 6-year event-free survival (EFS) in the study population was 75%, 76% in L1 and 70% in L2 (P = 0.34). In the group with white blood cell count (WBC) below 50 x 10(9)/liter at diagnosis, the L2 morphology was associated with inferior survival: 6-year EFS 74% in L2 and 84% in L1 (P = 0.07), with 6-year overall survival (OS) 81% vs. 91% (P = 0.035), respectively. L2 morphology was not associated with any other adverse prognostic factor analyzed. CONCLUSIONS: With the intensive Nordic ALL protocols, lymphoblast L2 morphology is an independent poor prognostic factor, influencing both the early response to treatment and, in the low-WBC group, the ultimate outcome, and should be reemphasized in risk categorization of childhood ALL.

Adolescent↗

Expression of p53 protein as a prognostic factor in patients with gastric cancer.

The prognostic value of overexpression of the p53-encoded protein was evaluated in 242 patients with gastric cancer. Formalin-fixed paraffin-embedded specimens of gastric adenocarcinomas were stained with the monoclonal antibody DO-7. 95 patients (39%) showed a high level of immunoreactivity (> or = 20% of cell nuclei staining positively), suggesting the presence of a mutation in the TP53 coding sequence. Overexpression of the p53 protein correlated significantly with stage of disease (P = 0.01), the presence of distant metastases (P = 0.04) and with the intestinal type of cancer (P = 0.04). No correlation between p53 overexpression and age, gender or the presence of the lymph node metastases was found. In univariate analysis, p53 immunoreactivity correlated significantly with survival (P = 0.0005). The median survival in the p53 high-level group was 19 months compared with 65 months in the p53 low-level group. In multivariate analyses, stage of disease and the presence of distant metastases emerged as independent prognostic factors, whereas p53 immunoreactivity did not (P = 0.08). The present results indicate that overexpression of the p53 protein is not an independent prognostic factor in patients with gastric cancer.

Adenocarcinoma↗