[Synchronous cancer duplicities of pancreas and stomach/kidney and their surgical treatment]. / Synchronní nádorové duplicity pankreatu a zaludku/ledviny a jejich lécba.

INTRODUCTION: The occurence of synchronous pancreatic cancer and other primary cancer is not frequent and reaches about 5.6% as reported in autoptic studies. Double resections of the pancreas with another organ due to synchronous malignancies have been published only in quite sporadic sets of cases or individual case reports. The authors present three cases of synchronous pancreatic malignancies and stomach or renal cancers treated with surgery, including results and survival. CASES: Three patients with synchronous double cancer were identified in a series of 400 pancreatic resections (20062014). Two patients presented with symptoms of pancreatic periampullary tumors (bile duct obstruction, weight loss and abdominal pain). The second malignancies were identified as incidental during diagnostic work-up (asymptomatic cancer of the stomach, kidney). Pancreatoduodenectomies (PDE) with lymphadenectomies were performed due to ductal adenocarcinomas (pT2N1M0 G3 and pT3N1M0 G2). The second procedures included subtotal gastrectomy with lymphadenectomy (gastric adenocarcinoma pT1N1M0, G2) and nephrectomy (renal papillary carcinoma pT1bN0M0, G3). Postoperative adjuvant chemotherapy with gemcitabine was given in both patients. Survival rates were 12 and 19 months, respectively. The third patient suffered from abdominal pain and weight loss. Diagnostic work-up revealed stomach carcinoma and early pancreatic adenocarcinoma. Double resection - subtotal gastrectomy with lymphadenectomy and pancreatoduodenectomy with lymphadenectomy - was performed. Gastric adenocarcinoma pT2N2M0, G3 and pancreatic ductal papillary-mucinous adenocarcinoma pT2N0M0, G1 were found in the specimens. Adjuvant radiochemotherapy with 5-fluorouracil and leukovorine was given postoperatively. This patient is still alive nearly 5 years after the surgery, without any reccurence. CONCLUSION: The survival of patients with double synchronous pancreatic malignancies and other primary tumors in our set seems to be influenced by the stage and biology of pancreatic cancer. The survival was worse when the duplicity was presented with symptoms of pancreatic cancer. Pancreatic cancer found incidentally when another malignancy is presented has more favourable results.

[Pancreatic metastases--diagnosis, radical surgery, complications and survival]. / Metastázy do pankreatu--diagnostika a moznosti radikální lécby, komplikace, prezívání.

INTRODUCTION: Although generally uncommon, pancreatic metastases are increasingly encountered in clinical practice. The benefit of pancreatic resections in this setting is unclear and still being discussed. Renal cell carcinoma is the most frequent primary tumour metastasing to the pancreas--R0 resections in cases of solitary metastases can be performed. Resections in malignant melanoma and ovarian cancer are rather considered as palliative. The aim of this study is to analyse our own set of patients operated on for metastases into the pancreas and evaluate the results of their surgical treatment. METHODS: We identified the patients operated on for metastases to the pancreas. Patient and tumour characteristics were summarized using descriptive statistics. RESULTS: A total of 9 patients (out of 312 patients undergoing resection for malignancy in the period of 2006-2014) with pancreatic metastases were analysed. All but one were asymptomatic; the symptomatic patient suffered from GI bleeding. All patients had a metachronous lesion with a median length of 12 years (421 years) between the initial operation and pancreatic resection. The most common metastasing tumour was renal cell carcinoma (77%) with the highest incidence occurring at the head of the pancreas (44%). The most frequent procedure used was the pylorus-preserving pancreatic head resection (44%). The median operating time was 247 min, (126375 min). Six patients were complication free, the median of their hospital stay was 9.5 days (812 days). Complications included PPH type C and PF type B both of which required surgical intervention; however, PF type A required no intervention. No postoperative deaths occurred, multiple metastases were found in 4 patients with renal cell carcinoma metastases. The median of follow-up has been 11.5 months, (334 months). CONCLUSION: Survival after pancreatic resections due to renal cell carcinoma is favourable. Mortality is low and morbidity is similar to that associated with pancreatic resections due to other aetiologies, making surgery a valid and safe treatment option. Lifelong follow-up of patients after nephrectomy is advised. Resections in pancreatic metastases of malignant melanoma or ovarian carcinoma are considered as palliative, their indication being individual following interdisciplinary consultation.

[Determination of CEA, EGFR and hTERT expression in peritoneal lavage in patients with pancreatic adenocarcinoma using RT - PCR method]. / Stanovení exprese CEA, EGFR a hTERT v peritoneální lavázi u pacientu s adenokarcinomem pankreatu metodou RT-PCR.

INTRODUCTION: The aim of this study is to assess the significance of CEA, EGFR and hTERT as markers of occult tumor cells for predicting treatment outcomes in pancreatic cancers, as well as determining the cut-off values of these markers individually in peritoneal lavage. METHOD: The study compared 87 patients undergoing palliative operations (bypass surgery, biological sampling for subsequent oncological treatment) for either stage III or IV (UICC) pancreatic ductal adenocarcinomas with a control group of 24 healthy patients. Abdominal cavity lavage was performed at the beginning of the surgery in both groups, using 100 ml of physiological solution (phosphate buffered saline, pH 7.2). The samples were transported in bottles containing 1.5 ml 0.5 M EDTA and 10 ml of fetal bovine serum. Total RNA samples were all processed and purified by reverse transcription. Occult tumor cells in the peritoneal lavage were detected by the real-time RT-PCR method using CEA, EGFR and hTERT as markers of tumor cells. Another aim was to calculate the cut-off values of these markers. Statistical analysis was done using software R (www.r-project.org) and Statistica (StatSoft, Inc. USA). RESULTS: Mean expression of CEA, EGFR and hTERT in peritoneal lavage in the control group was 2501, 716749 and 104 copies of mRNA / mg RNA. Threshold, cut-off values were determined as the "mean + 2 times standard deviation". Absolute expression values were further normalized to expression of the house-keeping gene glyceraldehyde-3-phosphate dehydrogenase (GAPDH). After normalization, cut-off values of the tested markers were 4.89, 115.88 and 0.02 copies of mRNA/GAPDH mRNA. As regards absolute expression of the markers tested, only hTERT was able to statistically significantly (p<0.001) distinguish the analysed groups, where patients with advanced pancreatic adenocarcinoma had a higher expression of hTERT. Absolute expression of CEA or EGFR was not able to discriminate between the two groups. The more accurate normalized expression values of the test markers demonstrated a statistically significantly higher expression of hTERT (p<0.005) and CEA (p<0.001) in patients with advanced adenocarcinoma compared to the control group. CONCLUSION: Absolute hTERT expression in peritoneal lavage of patients with advanced pancreatic cancer was significantly higher compared to the control group.

[Surgical therapy of pancreatic cancer - 5 years survival]. / Resekabilní karcinom pankreatu 5leté prezití.

INTRODUCTION: The purpose was to identify 5-year survivors among a group of radically resected patients with pancreatic cancer and analyse the characteristics and factors associated with their 5-year survival. Single tertiary centre experience. METHOD: A prospectively maintained database of 155 pancreatic resections from January 2006 to June 2010 was scanned to identify patients after curative radical resections for pancreatic ductal adenocarcinoma. The clinical and pathological data was analysed retrospectively. The outcomes of the PDAC group were evaluated using Kaplan-Meier analysis (survival) with the Log-rank test and Cox regression analysis (evaluation of prognostic factors). Characteristics of the survivors were discussed. Significance level of 0.05 was used. Those factors were used as independent variables for Cox regression analysis whose significant effect on survival was shown based on Kaplan-Meier analysis. RESULTS: Among 155 patients undergoing a curative pancreatic resection, 73 had a pancreatic ductal adenocarcinoma. Fifteen patients (20.5%) after radical surgery survived over 5 years, 13 of whom are still alive. In the group of the survivors, the mean overall survival was 77.1 months (60110) and the median survival was 74 months. The mean relapse-free interval in the group of the survivors was 63.3 months (14110) with the median of 65 months. Factors associated with a longer survival included the absence of lymph node infiltration (p=0.031), uncomplicated postoperative course (p=0.025), absence of vascular invasion (p=0.017), no blood transfusions (p=0.015) and the use of postoperative therapy - predominantly chemotherapy (p=0.009). Significant independent predictors of survival included vascular invasion HR=2.239 (95%CI: 1.0934.590; p=0.028), postoperative chemotherapy HR=2.587 (95%CI: 1.3015.145; p=0.007) and blood transfusion HR=2.080 (95%CI: 1.0274.212; p=0.042). The risk of death was increased 2.2 times in patients with vascular invasion, 2.1 times in patients with transfusions, and finally 2.6 times in those with no chemotherapy. CONCLUSION: Factors associated with an improved overall survival included: the absence of lymph node infiltration, an uncomplicated postoperative course, absence of vascular invasion, no need of blood transfusions, and finally the use of postoperative chemotherapy. Vascular invasion, use of blood transfusions and postoperative adjuvant chemotherapy were significant independent prognostic factors of survival.