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Curative treatment for esophageal cancer: Vancouver Island Cancer Centre experience from 1993 to 1998.

OBJECTIVES: To review outcomes after curative treatment for esophageal cancer in the Vancouver Island Cancer Centre from 1993 to 1998. Curative treatments included esophagectomy alone, and chemoradiotherapy with "selective surgery" for patients with post-treatment-positive endoscopic biopsy or less than 75% regression on computed axial tomography scan, or with resectable local recurrence. METHODS: Patients undergoing esophagectomy alone, or primary chemoradiotherapy and "selective surgery" were reviewed. This was a retrospective, nonrandomized, institutional experience. Surgical complication, relief of dysphagia, disease-specific survival rates and prognostic factors were analyzed. RESULTS: Nineteen patients underwent esophagectomy alone. A total of 56 patients underwent primary chemoradiotherapy, of whom 16 had "selective surgery". Relief of dysphagia was similar in both groups of esophagectomy patients. Exploration for "selective surgery" was performed in 12 patients after their first postchemo-radiotherapy endoscopy (two patients had unresectable disease), and in seven for relapse, one of whom died intraoperatively. Overall, the mortality rate due to surgery was 3%. Chemoradiotherapy was not associated with more frequent serious surgical complications. For patients who underwent esophagectomy alone and those who underwent chemoradiotherapy plus selective surgery, the median survival times were 12.9 and 16.4 months, respectively, and the three-year survival rates were 21% and 37%, respectively. Seventeen of 25 patients who underwent chemoradiotherapy and who survived more than two years have not required selective surgery. For the two groups of patients combined, no single prognostic factor for survival was significant in multivariate analysis, but for patients who underwent chemoradiotherapy plus selective surgery, negative endoscopic biopsy was highly significant. CONCLUSIONS: Surgical complication and disease-specific survival rates after primary chemoradiotherapy with selective surgery compare favourably with esophagectomy alone in the curative treatment of esophageal cancer. A prospective, randomized trial is necessary for the definitive evaluation of the strategy of chemoradiotherapy and selective surgery.

Adenocarcinoma↗

Theory and technique in dynamic psychotherapy--curative factors and training therapists to maximize them.

Three principles of curative factors in dynamic psychotherapy are reviewed: (1) Achieving a helping relationship; (2) achieving self-understanding, and (3) maintaining the gains. A new development in psychotherapy research is illustrated: the creation of operational measures that relate to the curative factors: the therapeutic alliance, the transference, accuracy of interpreting the transference, insight, change in transference and psychiatric severity. Such operational measures can be reliably estimated from psychotherapy sessions because they specify what each measure represents. A special format for training therapists to foster these curative factors is presented called 'group training in supervision of psychotherapy'.

Adaptation, Psychological↗

Muscle-invasive bladder cancer in elderly-unfit patients with concomitant illness: can a curative radiation therapy be delivered?

AIMS AND BACKGROUND: There is no standard treatment for elderly-unfit patients with muscle-invasive bladder cancer. Pelvic irradiation alone is an usual approach in this instance, and some reports have demonstrated that curative radiotherapy is feasible in elderly patients. To our knowledge, no data exist about the feasibility of a curative treatment in elderly patients with concomitant illness and a Charlson Comorbidity Index (an index of comorbidity that includes age) greater than 2. The main purpose of the present study was to establish the feasibility of irradiation in a cohort of elderly patients in poor general condition. METHODS: The records of 45 elderly-unfit patients (median age, 75 years; range, 70-85), with a comorbid Charlson score >2, treated with curative dose, planned continuous-course, external beam radiotherapy for muscle-invasive bladder cancer were reviewed. The patients were treated to a median total dose of 60 Gy (range, 56-64), with an average fractional dose of 190 +/- 10 cGy using megavoltage (6-15 MV). All patients were treated with radiation fields encompassing the bladder and grossly involved lymph nodes with a radiographic margin of at least 1.5 cm. RESULTS: No treatment-related mortality and clinically insignificant acute morbidity was recorded. No patient was hospitalized during or after the irradiation because of gastrointestinal or urogenital side effects. In one patient a week rest from therapy was necessary due a febrile status. Median survival was 21.5 months; overall 3- and 5-year survival was 36% and 19.5%, respectively. CONCLUSIONS: Elderly-unfit patients with comorbidities and >70 years of age can be submitted to radical pelvic irradiation. The results observed in this retrospective analysis have encouraged us to use non-palliative radiotherapy doses in these patients with muscle-invasive bladder cancer.

Age Factors↗

High resolution computed tomography in patients referred for intraluminal bronchoscopic therapy with curative intent.

In patients with so-called roentgenologically occult intraluminal lung tumours, an accurate assessment of tumour size, its location and peribronchial tumour extent is important prior to any intraluminal bronchoscopic therapy (IBT) with curative intent. In twenty patients with so-called occult early-stage lung cancers, clinical outcome was compared to high resolution computed tomography (HRCT) findings prior to IBT. HRCT showed peribronchial tumour extension or nodal enlargement in 7 of the 20 patients (35%), and consequently treatment policy was changed. Five of the seven died 1.5-6 months after diagnosis, one patient underwent a radical pneumonectomy after induction chemotherapy, and the remaining patient is alive with pleural metastasis. HRCT showed intraluminal tumours in 11 of the 20 patients and IBT with curative intent was given. Complete response (CR) was achieved in 10 of the 11 patients, follow-up has been 4-26 months. One patient underwent a radical lobectomy, pathological stage T1NO, after 3 months because of tumour recurrence. HRCT was inconclusive in 2 of the 20 patients with postobstructive infiltrates. IBT was unsuccessful in both these cases. High resolution computed tomography may provide supportive evidence of intra-and extraluminal tumour; thereby, helping in the assessment of patients who were judged to be suitable for intra-luminal bronchoscopic therapy with curative intent. This may lead to a change in the treatment policy. High resolution computed tomography findings are complementary to bronchoscopic, histological and cytological examinations for the proper evaluation of treatment indications in patients with occult lung cancer.

Aged↗

Follow-up of patients with curatively resected colorectal cancer: a practice guideline.

BACKGROUND: A systematic review was conducted to evaluate the literature regarding the impact of follow-up on colorectal cancer patient survival and, in a second phase, recommendations were developed. METHODS: The MEDLINE, CANCERLIT, and Cochrane Library databases, and abstracts published in the 1997 to 2002 proceedings of the annual meeting of the American Society of Clinical Oncology were systematically searched for evidence. Study selection was limited to randomized trials and meta-analyses that examined different programs of follow-up after curative resection of colorectal cancer where five-year overall survival was reported. External review by Ontario practitioners was obtained through a mailed survey. Final approval of the practice guideline report was obtained from the Practice Guidelines Coordinating Committee. RESULTS: Six randomized trials and two published meta-analyses of follow-up were obtained. Of six randomized trials comparing one follow-up program to a more intense program, only two individual trials detected a statistically significant survival benefit favouring the more intense follow-up program. Pooling of all six randomized trials demonstrated a significant improvement in survival favouring more intense follow-up (Relative Risk Ratio 0.80 (95%CI, 0.70 to 0.91; p = 0.0008). Although the rate of recurrence was similar in both of the follow-up groups compared, asymptomatic recurrences and re-operations for cure of recurrences were more common in patients with more intensive follow-up. Trials including CEA monitoring and liver imaging also had significant results, whereas trials not including these tests did not. CONCLUSION: Follow-up programs for patients with curatively resected colorectal cancer do improve survival. These follow-up programs include frequent visits and performance of blood CEA, chest x-rays, liver imaging and colonoscopy, however, it is not clear which tests or frequency of visits is optimal. There is a suggestion that improved survival is due to diagnosis of recurrence at an earlier, asymptomatic stage which allows for more curative resection of recurrence. Based on this evidence and consideration of the biology of colorectal cancer and present practices, a guideline was developed. Patients should be made aware of the risk of disease recurrence or second bowel cancer, the potential benefits of follow-up and the uncertainties requiring further clinical trials. For patients at high-risk of recurrence (stages IIb and III) clinical assessment is recommended when symptoms occur or at least every 6 months the first 3 years and yearly for at least 5 years. At the time of those visits, patients may have blood CEA, chest x-ray and liver imaging. For patients at lower risk of recurrence (stages I and Ia) or those with co-morbidities impairing future surgery, only visits yearly or when symptoms occur. All patients should have a colonoscopy before or within 6 months of initial surgery, and repeated yearly if villous or tubular adenomas >1 cm are found; otherwise repeat every 3 to 5 years. All patients having recurrences should be assessed by a multidisciplinary team in a cancer centre.

Adult↗

Preventive and curative effect of melatonin on mammary carcinogenesis induced by dimethylbenz[a]anthracene in the female Sprague-Dawley rat.

INTRODUCTION: It has been well documented that the pineal hormone, melatonin, which plays a major role in the control of reproduction in mammals, also plays a role in the incidence and growth of breast and mammary cancer. The curative effect of melatonin on the growth of dimethylbenz [a]anthracene-induced (DMBA-induced) mammary adenocarcinoma (ADK) has been previously well documented in the female Sprague-Dawley rat. However, the preventive effect of melatonin in limiting the frequency of cancer initiation has not been well documented. METHODS: The aim of this study was to compare the potency of melatonin to limit the frequency of mammary cancer initiation with its potency to inhibit tumor progression once initiation, at 55 days of age, was achieved. The present study compared the effect of preventive treatment with melatonin (10 mg/kg daily) administered for only 15 days before the administration of DMBA with the effect of long-term (6-month) curative treatment with the same dose of melatonin starting the day after DMBA administration. The rats were followed up for a year after the administration of the DMBA. RESULTS: The results clearly showed almost identical preventive and curative effects of melatonin on the growth of DMBA-induced mammary ADK. Many hypotheses have been proposed to explain the inhibitory effects of melatonin. However, the mechanisms responsible for its strong preventive effect are still a matter of debate. At least, it can be envisaged that the artificial amplification of the intensity of the circadian rhythm of melatonin could markedly reduce the DNA damage provoked by DMBA and therefore the frequency of cancer initiation. CONCLUSION: In view of the present results, obtained in the female Sprague-Dawley rat, it can be envisaged that the long-term inhibition of mammary ADK promotion by a brief, preventive treatment with melatonin could also reduce the risk of breast cancer induced in women by unidentified environmental factors.

9,10-Dimethyl-1,2-benzanthracene↗

'Would you like to talk about your future treatment options'? Discussing the transition from curative cancer treatment to palliative care.

Palliative care focuses on improving quality of life for patients with life-threatening illness and their families. There comes a time when actively pursuing aggressive curative treatment may do more harm than good. The cessation of curative treatment is often viewed as a distinct event; however, current practice guidelines suggest that a palliative approach should be gradually adopted as the disease progresses. The challenge is how to facilitate a sensitive transition from curative to palliative care. On the basis of an extensive literature review, recommended steps for facilitating this transition have been outlined. The recommendations cover: the timing of the discussion; preparing for this discussion; the environment and circumstances of the consultation; initiating the discussion; identifying the information to be provided; responding to the person's emotional reaction; introducing palliative care services; continuity of care; family concerns; cultural and linguistic diversity; concluding the discussion. These steps were based on the best available evidence. However, as there is a paucity of research in this area, only three relevant systematic reviews of randomized controlled trials were identified and only one of these reviews related directly to palliative care. The majority of the relevant research was descriptive evidence. There is a need for more high quality research in this area.

Advance Care Planning↗

Fluorouracil plus leucovorin as effective adjuvant chemotherapy in curatively resected stage III colon cancer: results of the trial adjCCA-01.

PURPOSE: Adjuvant postoperative treatment with fluorouracil (5-FU) and levamisole in curatively resected stage III colon cancer significantly reduces the risk of cancer recurrence and improves survival. Biochemical modulation of 5-FU with leucovorin has resulted in increased remission rates in metastatic colorectal cancer, thus reflecting an increased tumor-cell kill. The impact of 5-FU plus leucovorin on survival and tumor recurrence was analyzed in comparison with the effects of 5-FU plus levamisole in the prospective multicentric trial adjCCA-01. PATIENTS AND METHODS: Patients with a curatively resected International Union Against Cancer stage III colon cancer were stratified according to T, N, and G category and randomly assigned to receive one of the two adjuvant treatment schemes: 5-FU 400 mg/m(2) body-surface area intravenously in the first chemotherapy course, then 450 mg/m(2) x 5 days; 12 cycles, plus leucovorin 100 mg/m(2) (arm A), or 5-FU plus levamisole (Moertel scheme; arm B). RESULTS: Six hundred eighty (96.9%) of 702 patients enrolled onto this study were eligible. After a median follow-up time of 46.5 months, the 5-FU plus leucovorin combination significantly improved disease-free survival (P =.037) and significantly decreased overall mortality (P =.0089) in comparison with 5-FU plus levamisole. In a multivariate proportional hazards model, adjuvant chemotherapy emerged as a significant prognostic factor for survival (P =.0059) and disease-free survival (P =.03). Adjuvant treatment with 5-FU plus levamisole as well as with 5-FU plus leucovorin was generally well tolerated; only a minority of patients experienced grade 3 and 4 toxicities. CONCLUSION: After a curative resection of a stage III colon cancer, adjuvant treatment with 5-FU plus leucovorin is generally well tolerated and significantly more effective than 5-FU plus levamisole in reducing tumor relapse and improving survival.

Adjuvants, Immunologic↗

Hydronephrosis does not preclude curative resection of pelvic recurrences after colorectal surgery.

BACKGROUND: In one third of patients who die of rectal cancer, a pelvic recurrence after resection represents isolated disease for which re-resection may provide cure. These extensive resections can carry high morbidity. Proper patient selection is desirable but difficult. Hydronephrosis has been documented previously to portend a poor prognosis, and some consider it a contraindication to attempted resection. It was our goal to review our experience and either confirm or refute these conclusions. METHODS: We performed a retrospective analysis of 90 patients resected with curative intent for pelvic recurrence at our center from 1988 through 2003. Seventy-one records documented the preoperative presence or absence of hydronephrosis. Clinical and pathologic data were recorded. The groups with and without hydronephrosis were compared. RESULTS: There were 15 patients with hydronephrosis in this study and 56 without. Although patients with hydronephrosis had shorter overall survival, disease-free survival, and rate of local control, none of these differences was statistically significant. Patients in the hydronephrosis group were younger and had higher-stage primary tumors and larger recurrent tumors. Subsequently, they underwent more extensive resections and were more likely to be treated with adjuvant therapies. There was no difference in the rate of margin-negative resections between the groups. CONCLUSIONS: Hydronephrosis correlates with younger patients with larger recurrent tumors undergoing more extensive operations and multimodality therapy but does not preclude curative (R0) resection or independently affect overall survival, disease-free survival, or local control. We believe that it should not be considered a contraindication to attempting curative resection.

Disease-Free Survival↗

Prognostic significance of epidermal growth factor receptor expression in colon cancer patients undergoing curative surgery.

BACKGROUND: To investigate the role of epidermal growth factor receptor (EGFR) expression as a prognostic marker for prediction of cancer behavior and clinical outcomes in colon cancer patients undergoing potentially curative surgery. METHODS: EGFR determination using a commercially available immunohistochemistry kit was performed in tissues from 149 colon cancer patients receiving primary surgical treatment and in 25 normal colon mucosa specimens from noncancer patients. EGFR positivity was correlated in univariate and multivariate analyses with disease recurrence and survival. In addition, p27, p53, and vascular endothelial growth factor expression were assessed by immunohistochemistry in 104 patients and correlated with EGFR tumor expression and clinical outcome. RESULTS: EGFR expression was detected in approximately one third of colon cancer patients (53 of 149; 35.6%). In 126 curatively treated patients, EGFR expression was correlated with disease recurrence and worse survival in both univariate and multivariate analyses. In a multivariate model for predicting recurrence and survival, Dukes' staging, p27, and EGFR expression were the only independent covariates. In particular, in Dukes' A and B patients the 5-year survival probability was 96% for EGFR-negative and high p27 expression cases and was 30.7% for EGFR-positive and low p27 expression cases. CONCLUSIONS: EGFR expression was an independent prognostic indicator of disease recurrence and poor survival in colon cancer patients undergoing curative surgery. In the context of novel therapeutic options such as molecularly targeted therapies, these findings suggest that anti-EGFR drugs could be evaluated in the adjuvant treatment of EGFR-positive colon cancer patients.

Adult↗

Clinical results on intra-arterial adjuvant chemotherapy for prevention of liver metastasis following curative resection of pancreatic cancer.

BACKGROUND: We report here the clinical results of intra-arterial adjuvant chemotherapy for the prevention of liver metastasis following curative resection of pancreatic carcinoma. METHODS: Twenty-two patients with pancreatic cancer underwent the radical operation between January 1999 and April 2005. Intra-arterial adjuvant chemotherapy with cisplatin (CDDP) and 5-fluorouracil (5FU) was selectively performed on nine patients; the remaining 13 patients did not receive chemotherapy and comprised the control group. RESULTS: Demographics and clinical characteristics were almost identical in the two groups. Liver metastasis occurred in three of nine patients (33%) in the chemotherapy group and in seven of 13 patients (54%) in the control group. The intra-arterial adjuvant chemotherapy had the tendency to suppress the rate of liver metastasis. The median survival period was 15.8 months for the nine patients who underwent the intra-arterial adjuvant chemotherapy following surgery and 13.4 months for the 13 patients of the control group who were curatively resected without the intra-arterial adjuvant chemotherapy. Cumulative survival rate was improved by the intra-arterial adjuvant chemotherapy. CONCLUSIONS: In patients with pancreatic cancer who underwent the curative operation, the intra-arterial adjuvant chemotherapy had the tendency to suppress the rate of liver metastasis and improve cumulative survival.

Aged↗

Detection of carcinoembryonic antigen messenger RNA-expressing cells in peripheral blood 7 days after curative surgery is a novel prognostic factor in colorectal cancer.

BACKGROUND: The significance of detection of circulating cancer cells in blood during surgery in patients with colorectal cancer (CRC) remains controversial. Experimental study revealed that the cancer cells injected from the vein disappeared completely until 7 days. The aim of this study was to clarify that the detection of circulating cancer cells in blood taken later than 7 days after curative surgery may be a prognostic factor. METHODS: Two hundred consecutive patients with CRC who underwent potentially curative surgery were the subjects. Peripheral blood was collected between 7 and 10 days after resection. Cancer cells were detected using reverse transcriptase-polymerase chain reaction targeting carcinoembryonic antigen (CEA) messenger RNA (mRNA). The median follow-up period was 52 months (range: 34-69 months). RESULTS: The overall positive incidence of CEA mRNA was 22%. Detection of CEA mRNA was not significantly related to conventional clinicopathological findings. Recurrence has been confirmed in 55 patients (28%). The recurrence rate was significantly higher in patients with rectal cancer, deep penetration, lymph node metastasis, preoperative chemoradiotherapy and positive CEA mRNA. The CEA mRNA positive patients showed significantly poorer disease free survival (DFS) and overall survival (OS) than the negative patients (DFS, P = 0.007; OS, P = 0.04). Multivariate analysis revealed that the positive expression of CEA mRNA (P < 0.01) as well as the tumor location and TNM stage classification was identified as the significant risk factors for recurrence. CONCLUSIONS: Detection of CEA mRNA expressing cells in peripheral blood 7 days after curative surgery is a novel independent factor predicting recurrence in patients with CRC.

Adenocarcinoma, Mucinous↗

Angiogenesis and cathepsin expression are prognostic factors in pancreatic adenocarcinoma after curative resection.

BACKGROUND: Curative resection of pancreatic adenocarcinoma is the only clinical parameter related to a favorable prognosis while other clinicopathological parameters fail. To evaluate whether angiogenesis, vascular endothelial growth factor (VEGF) or certain tumor proteases, e.g., cathepsin B (CTSB) and L (CTSL), are factors of prognostic relevance, we investigated their expression in patients with long- and short-term survival after curative resection (RO) because of pancreatic adenocarcinoma. METHODS: Twenty-nine tissue samples from patients with adenocarcinoma of the pancreas were examined. The patients were selected in a long-term survival group with a survival > or = 24 mo (n = 18) and a shortterm survival group of patients, who died within 8 mo after surgery because of their malignancy (n = 11). The microvessel quantification was performed immunohistochemically using a monoclonal anti-CD34 antibody. VEGF, CTSB, and CTSL expressions was studied using polyclonal antibodies (PAbs). RESULTS: The median microvessel density (MVD) was 75 (range 39-182). MVD correlated significantly with the survival time after surgery (p = 0.0132) but not with clinicopathological parameters. In cancer cells, VEGF was positive in 82.8% and showed significant correlation with the MVD (p = 0.0002) and survival time (p = 0.0395). Positive immunoreactivity could be obtained for 96.5% for CTSB and 84.2% for CTSL. Expression of both proteases correlated significantly with the survival time after surgery (CTSB p = 0.0002, CTSL p = 0.0001). Furthermore, CTSB expression correlated with invasion of the perineural space. Thus, a short postoperative survival correlated with a high MVD, and highly expressed VEGF, CTSB, and CTSL. No significant correlation between MVD, VEGF, as well as CTSL and clinicopathological parameters was found. For routinely assessed markers (e.g., TNM-stage, UICC-stage, and so on) no significant correlation with survival time was found in this small group of patients. CONCLUSION: These findings indicate that the MVD, VEGF, CTSB, and CTSL are prognostic factors after curative resection, whereas other parameters (TNM, UICC, and so on) failed to show prognostic relevance in our group of patients. Furthermore, the correlation between MVD and VEGF underlines the importance of this growth factor for angiogenesis and tumor growth. The correlation between CTSB and perineural invasion demonstrates the involvement of cathepsins in local tumor invasion.

Adenocarcinoma↗

Prognostic factors after potentially curative resection in stage II or III colon cancer.

It is important to identify factors that are predictive of outcome after a curative resection in colon cancer in order to optimize adjuvant therapy. To investigate these prognostic factors we conducted a retrospective analysis of our clinicopathological data. A total of 190 patients with a pathological stage II or III colon cancer underwent potentially curative resection with lymphadenectomy at our hospital between 1990 and 1998. These patients received no preoperative chemotherapy, immunotherapy or radiotherapy. Postoperative adjuvant chemotherapy using oral fluoropyrimidines was performed in 127 patients, and the other 63 patients underwent surgery alone. Univariate and multivariate analyses for prognostic factors were carried out. The univariate analysis revealed that invasion to adjacent organs, N1-2, positive mesenteric lymph node metastasis (MLN+), lymphatic permeation (ly)1-3, venous invasion (v)1-3, and v2-3 were each significant factors indicating worse disease-free survival, and that N1-2, MLN+, ly1-3, v1-3 and v2-3 were each significant factors for worse overall survival. In the multivariate analysis, MLN+ and vl-3 were significant factors for worse disease-free survival, and for worse overall survival. In conclusion, stage II or III colon cancer patients positive for mesenteric lymph node metastasis or for venous invasion have a greater risk of recurrence and death after potentially curative resection. Postoperative adjuvant chemotherapy using oral fluoropyrimidines did not significantly reduce the risk of recurrence and death in these patients. More effective adjuvant chemotherapy than oral fluoropyrimidine should be considered, especially in such high-risk patients.

Adult↗

Should all the N3 lymph nodes group metastasis be regarded as distant metastasis (M1) in curatively resected gastric cancer?

Recently, metastasis to N3 lymph nodes group was regarded as distant metastasis by the new TNM staging system due to poor overall survival. However, the 5-year overall survival rate of patients with metastasis to N3 groups was 34.5% after curative surgery. Moreover, in patients with metastasis to lymph node subgroups of #12, #13, #14, the overall 5-year survival rate increased upto 47.2% after curative resection and adjuvant chemotherapy. This was similar to that of the patients with metastasis to N1 and N2 lymph nodes groups. But in these highly tumor burden states, no survival benefit was found with the addition of immunotherapy to chemotherapy as we achieved in stage II and III. Therefore, we suggest that, at least, metastasis to #12, #13, #14 lymph nodes subgroups should not be categorized as a distant metastasis. And in these situations, active curative radical surgery with extended lymphadenectomy and adjuvant chemotherapy are recommended.

Adult↗

The actual five-year survival rate of hepatocellular carcinoma patients after curative resection.

The five-year survival rate of patients after curative resection of hepatocellular carcinoma (HCC) has been reported to be 30 to 50%, however the actual survival rate may be different. We analyzed the actual 5-year survival rate and prognostic factors after curative resection of HCC. Retrospective analysis was performed on 63 HCC patients who underwent curative resection from 1998 to 1999. A total of 63 cases were reviewed, consisting of 53 men and 10 women, with a median age of 49 years. These cases included all four pathologic T stages (pT stage) and had the following representation: stage 1 (1 case), stage 2 (17 cases), stage 3 (38 cases), and stage 4 (7 cases). In our study, the actual 5-year survival rate was 57.0% and the median survival time was 60 months. In addition, the patients in our study had an actual 5-year disease-free survival rate of 50.2% and a median disease-free survival time of 46 months. Thirty-one patients had recurrences, with a majority occurring within one year (65%). These patients with early recurrences had a poor actual 5-year survival rate of 5%. A univariate analysis showed that the prognostic factors influencing survival rate were the presence of satellite nodules, increased pT stage, HCC recurrence, and the time to recurrence (within one year). Interestingly, microvascular invasion made a difference in survival rate but was not statistically significant (p = 0.08). Furthermore, factors influencing the disease free survival rate include the presence of satellite nodules, microvascular invasion, and pT stage. Multivariate analysis identified pT stage as the only statistically related factor in determining the disease-free survival rate. The most important prognostic factor of HCC is recurrence. Moreover, the major risk factor for recurrence is an advanced pT stage. Therefore, performing prospective studies of postoperative adjuvant therapy is necessary to prevent recurrences after hepatic resection. Furthermore, active preventative treatment and early diagnosis of recurrences should be of the highest priority in the care of high-risk patient groups that have an advanced pT stage.

Adult↗

Prognostic significance of immunohistochemical expression of p53 and retinoblastoma gene protein (pRB) in curatively resected gastric cancer.

BACKGROUND: The aim of this study was to determine the prognostic significance of the expression of p53 and retinoblastoma (Rb) gene products in cases of curatively resected gastric adenocarcinoma, by immunohistochemical analysis. METHODS: Between January 1996 and December 2001, 736 curatively resected gastric cancer patients underwent immunohistochemical staining for p53 or Rb proteins (pRb), and we retrospectively analyzed the correlation of our results with the clinical outcomes of these cases. RESULTS: High levels of expression of p53 (>25% p53-positive cells) and Rb (>50% Rb-positive cells) proteins were detected in 40.1% and 43.7% of cases, respectively. Tubular type was found to frequently exhibit higher levels of p53 expression (high expression in 44.2%) than signet ring cell type (high expression in 26.0%) (p = 0.042). The incidence of vascular invasion was lower in the high pRb expressors (43.2%) than in the pRb low expressors (56.8%), but this was not a statistically significant discrepancy (p = 0.063). Preoperative CEA levels were found to be low in high pRb expressors: initial CEA level in the high pRb expressors was 2.31 +/- 3.30 ng/mL, and was 5.18 +/- 24.80 ng/mL in the low pRb expressors (p = 0.033). Tumor depth and node metastasis were both independent of the levels of expression of p53 and Rb proteins. The seven-year overall survival rate and relapse-free survival rates of patients were 87.2% and 75.7%, respectively. Multivariate Cox regression analysis indicated that tumor stage, tumor size, patient age and pRb expression were the significant prognostic factors with regard to overall survival, and tumor stage and age were both significant factors with regard to relapse-free survival. CONCLUSION: Immunohistochemical staining of retinoblastoma gene products was an independent prognostic factor for the prediction of overall survival in curatively resected gastric cancer patients.

Adenocarcinoma↗

Effect of curative versus palliative surgical treatment for stage III pancreatic cancer patients.

UNLABELLED: During the last decade, significant progress has been made in pancreaticoduodenectomy for patients with pancreatic carcinoma. Pancreatic resection performed by surgeons in tertiary referral centres is therefore justified, while the indications for pancreatic resection could be extended in patients with advance stages of disease. The aim of our study is to compare the effect of curative (pancreaticoduodenectomy) versus palliative surgery in patients with stage III pancreatic cancer, during a 20-years period. We retrospectively reviewed the charts of 58 consecutive patients with stage III ductal adenocarcinoma of the head of the pancreas. 23 patients underwent pancreatoduodenectomy with curative intent while the remaining 35 patients had surgery for palliative purposes (combined biliary and gastric bypass was performed in 83%). The hospital mortality rate was similar in both groups (4% vs 6%). 43% of patients undergoing pancreaticoduodenectomy had an uncomplicated post-operative course compared with 49% of patients undergoing palliative bypass. The length of surgical procedure and post-operative hospital stay in pancreaticoduodenectomy group were significant longer compared to those patients undergoing palliative bypass (p = 0.03 and p = 0.02 respectively). The overall actuarial survival was significantly (p < 0.01) longer in the group of patients who underwent pancreaticoduodenectomy compared with the group with palliative intent surgery. CONCLUSION: Pancreaticoduodenectomy with curative intent for stage III pancreatic cancer patients, could improve prognosis with similar peri-operative morbidity and mortality when compared with palliative bypass.

Adenocarcinoma↗