The Value of Positron Emission Tomography/Computed Tomography for Evaluating Metastatic Disease in Patients With Pancreatic Cancer

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Abstract

Routine application of positron emission tomography/computed tomography (PET/CT) for pancreatic cancer staging remains a controversial approach. The purpose of this study was to reassess the clinical impact of PET/CT for the detection of distant metastasis of pancreatic cancer.

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Perioperative CA19-9 levels can predict stage and survival in patients with resectable pancreatic adenocarcinoma.

Alona Muzikansky, Sarah P. Thayer, Andrew Warshaw … (2006)

Different prognostic factors stratify patients with pancreatic adenocarcinoma. The purpose of this study was to determine whether preoperative CA19-9 levels can predict stage of disease or survival and whether a change in preoperative to postoperative CA19-9 or the postoperative CA19-9 predicts overall survival. Four hundred twenty-four consecutive patients with pancreatic adenocarcinoma underwent resection between January 1, 1985 and January 1, 2004. Of the patients with a bilirubin less than 2 mg/dL, 176 had preoperative CA19-9 values, and 111 had pre- and postoperative CA19-9 values. Survival was measured from the first postoperative CA19-9 level measured (median, 39 days) until death or last follow-up. A multivariate failure time model was fit using clinical, operative, pathologic, and adjuvant treatment characteristics, and a categorization was defined by the values and changes in CA19-9 before and after surgery. Of the 176 patients, 128 (73%) had T3 lesions, and 99 (56%) had N1 disease; 138 patients (78%) underwent pancreaticoduodenectomy. Median preoperative CA19-9 levels were lower in N0 patients compared with patients with positive nodes (nine v 164 U/mL, respectively; nonparametric P = .06) and in T1/T2 patients versus T3 patients (41 v 162 U/mL, respectively; P = .03). Median follow-up time (n = 111) was 1.8 years (range, 1 to 12.9 years), with overall actuarial 1-, 3-, and 5-year survival rates of 70%, 36%, and 30%, respectively. Significant predictors of survival on multivariate analysis included a decrease in CA19-9 (P = .0005), negative lymph nodes (P = .001), lower T stage (P = .0008), and postoperative CA19-9 less than 200 U/mL (P = .0007). In patients with pancreatic adenocarcinoma, preoperative CA19-9 correlates with stage of disease. Both a postoperative decrease in CA19-9 and a postoperative CA19-9 value of less than 200 U/mL are strong independent predictors of survival, even after adjusting for stage. CA19-9 levels should be included in a patient's perioperative care and should be considered for prognostic nomograms.

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Chemoradiotherapy in the management of locally advanced pancreatic carcinoma: a qualitative systematic review.

Françoise Mornex, David Azria, F Huguet … (2009)

Pancreatic carcinoma is one of the leading causes of cancer-related mortality. At time of diagnosis, 30% of patients present with a locally advanced unresectable but nonmetastatic pancreatic carcinoma (LAPC). The French program Standards, Options, and Recommendations was promoted to conduct a qualitative systematic review to evaluate the role of radiotherapy in patients with LAPC. A search to identify eligible studies was undertaken using the MEDLINE database. All phase III randomized trials and systematic reviews evaluating the role of radiotherapy in LAPC were included, together with some noncontrolled studies if no phase III trials were retrieved. The quality and clinical relevance of the studies were evaluated using validated checklists, which allowed associating each result with a level of evidence. Twenty-one studies were included, as follows: two meta-analyses, 13 randomized trials, and six nonrandomized trials. Chemoradiotherapy increases overall survival when compared with best supportive care (level of evidence C) or with exclusive radiotherapy (level B1), but is more toxic (level B1). Chemoradiotherapy is not superior to chemotherapy in terms of survival (level B1) and increases toxicity (level A). Recent data favor limited irradiation to the tumor volume (level C). Fluorouracil is still the reference chemotherapy in association with radiotherapy (level B1). Induction chemotherapy before chemoradiotherapy improves survival (level C). No standard treatment exists, but there are two options for treatment of LAPC; these are gemcitabine-based chemotherapy and chemoradiotherapy. Induction chemotherapy followed by a chemoradiotherapy is a promising strategy for selection of patients without early metastatic/progressing disease.

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Cancer Statistics in Korea: Incidence, Mortality and Survival in 2005

Kyu-Won Jung, Young-Joo Won, Sohee Park … (2009)

Cancer has been the most common cause of death in Korea since 1983 and is a major public health concern. This paper overviews the nationwide cancer statistics, including incidence, mortality, and survival rates, and their trends in Korea. In 2005, 142,610 new cancer cases and 65,117 cancer deaths occurred in Korea. The incidence rate for all cancer combined increased by 2.6% annually from 1999 to 2005. Significant increases have occurred in the incidence of colorectal, thyroid, female breast, and prostate cancers. The number of cancer deaths has increased over the past two decades, due mostly to population aging, while the age-standardized mortality rates have decreased in both men and women since 2002. Notable improvement has been observed in the 5-yr relative survival rates for most major cancers and for all cancer combined, with the exception of pancreatic cancer. The nationwide cancer statistics in this paper will provide essential data for evidence-based decisions in the national cancer control program in Korea.