bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical impact of postgastrectomy sarcopenia on the prognosis in patients with gastric cancer.
Authors: Kim Beom Jin , Lee Eun Sun , Park Joong-Min , Hwang In Gyu 
Published: February 2020

311 Background: There is a lack of research on newly developed sarcopenia postoperatively. The purpose of this study was to investigate the risk factors and the clinical impact of postgastrectomy sarcopenia on the prognosis in patients undergoing radical gastrectomy for gastric cancer (GC). Methods: We retrospectively reviewed clinicopathological data from 430 consecutive GC patients who underwent surgical resection at Chung-Ang University Hospital between January 2011 and December 2015. Their skeletal muscle mass and abdominal fat volume were measured by abdominal CT imaging. Results: A total of 425 patients were analyzed in the study. The mean age was 62 years old and male were 301 (70.8%). Of these, 42 patients (9.9%) were diagnosed as pre-operative sarcopenia. Compared with non-sarcopenic group, pre-operative sarcopenia groups showed more female, higher BMI, less alcoholic, and less smoking. However, there was no significant difference in 5 - year overall survival and disease free survival between the groups (p = 0.836 and p = 0.638, respectively). Among 381 non-sarcopenic patients, 48 patients (12.6%) were diagnosed as newly developed sarcopenia in one year after gastric resection. Compared with non-sarcopenic group, the newly developed sarcopenic group showed more male, more undifferentiated tumor, lower hemoglobin level, less alcoholic, less smoking, and presence of diabetes mellitus. However, there was no significant difference in the 5 - year overall survival and disease free survival among non-sarcopenic, sarcopenic, and newly developed sarcopenic groups (p = 0.521 and p = 0.534, respectively). The relationship between preoperative body fat volume and postoperative muscle mass showed a significant correlation (rho = 0.296, p < 0.001), but only BMI was significantly associated with long term survival. Conclusions: Although newly developed sarcopenia after surgery did not affect the survival rate, patients with nutritional risk of sarcopenia after surgical resection may require early evaluation of nutritional status and nutritional support.
Development and validation of a pretreatment nomogram to predict disease-specific mortality in gastric cancer.
Authors: Bando Etsuro , Ji Xinge , Kattan Michael W. , Bencivenga Maria , De Manzoni Giovanni , Terashima Masanori 
Published: February 2020

312 Background: The American Joint Committee on Cancer (AJCC) has increasingly recognized the need for individual risk prediction model. The AJCC has emphasized the attractiveness of disease-specific mortality (DSM), which can properly control for competing events. as an endpoint of risk model, as well as overall survival (OS) and disease-specific survival (DSS). For the era of tailored therapy, we aimed to develop a new pretreatment gastric cancer nomogram for prediction of DSM. Methods: The nomogram was developed using data of 5,231 patients with primary gastric cancer treated at Shizuoka Cancer Center (Shizuoka, Japan), and it was created with a Fine and Gray competing-risks proportional hazards regression model. Fifteen clinical variables, which were obtained at pretreatment, were collected and registered, to develop the nomogram. Data of independent cohort of patients from the University of Verona (Italy; 389 patients) formed the external validation cohort. The model was validated internally and externally using measures of discrimination (Harrell’s C-index), calibration and decision curve analysis. Results: In the development procedure, multivariable analysis for DSM selected 14 variables for constructing the nomogram. The developed nomogram showed good discrimination, with a C-index of 0.887 (95%CI; 0.881-0.894); that of the American Joint Committee on Cancer (AJCC) clinical stage was 0.794 (0.784-0.804). In the external validation procedure, the C-index was 0.713 (0.680-0.746) (AJCC, 0.582, 0.539-0.622) in the University of Verona cohort. The nomogram performed well in the calibration and decision curve analyses when applied to both the internal and external validation cohorts. Conclusions: This new pretreatment risk model accurately predicts DSM in gastric cancer and can be used for patient counseling in clinical practice and stratification in clinical trials.
Real-world treatment attrition rates in advanced esophagogastric cancer.
Authors: Tsang Erica S. , Lim Howard John , Renouf Daniel John , Davies Janine Marie , Loree Jonathan M. , Gill Sharlene 
Published: February 2020

317 Background: Over the last decade, multiple agents have demonstrated efficacy for advanced esophagogastric cancer (EGC), including ramucirumab, irinotecan, trifluridine/tipiracil, and immunotherapy. Despite the availability of later lines of therapy, there remains limited real-world data about the treatment attrition rates between lines of therapy. We sought to characterize the use and attrition rates between lines of therapy for patients with advanced EGC. Methods: We identified patients who received at least one cycle of chemotherapy for advanced EGC between July 1, 2017 and July 31, 2018 across 6 regional centers in British Columbia (BC), Canada. Clinicopathologic, treatment, and outcomes data were extracted by chart review. Results: Of 169 patients who received at least one line of therapy, median age was 65.2 years (IQR 58-72) and 128 (76%) were male, ECOG PS 0/1 (84%), gastric vs GEJ (35% vs 65%). Histologies included adenocarcinoma (76%), squamous cell carcinoma (10%) and signet ring (14%), with 26% HER2 positive. 62% presented with de novo disease, and 35% had received previous chemoradiation. There was a high level of treatment attrition, with patients receiving only one line of therapy (n = 73, 43%), two lines (n = 65, 38%), three lines (n = 25, 15%), and four lines (n = 6, 4%). Kaplan-Meier survival analysis demonstrated improved survival with increasing lines of therapy (median overall survival 9.6 vs. 18.5 vs. 25.8 vs. 40.7 months, p< 0.05). On multivariable Cox regression, improved survival was associated with better baseline ECOG, longer duration of first-line therapy, and increased lines of therapy ( p< 0.01). Conclusions: The steep attrition rates between therapies highlight the unmet need for more efficacious earlier-line treatment options for patients with advanced EGC. [Table: see text]
Treatment modalities and oncological outcomes in Mexican patients with localized gastric cancer.
Authors: Verduzco-Aguirre Haydee Cristina , Meneses Medina Mónica Isabel , Valenzuela Ana Karen , Rosas Camargo Vanessa , Anaya Sánchez Luis Guillermo , Cortez Dominguez Edwin Ulises , Huitzil-Melendez Fidel David 
Published: February 2020

319 Background: gastric cancer is common in Mexico. Evaluation of treatment strategies is greatly important in early gastric cancer. National institutions rarely report their outcomes, limiting feedback and policy improvements. Methods: single-center retrospective review of patients with histologically confirmed localized gastric cancer diagnosed from Jan 2005 to Dec 2017. Overall survival (OS) and recurrence-free survival (RFS) were estimated by Kaplan-Meier curves and compared with log-rank rest. A p value < 0.05 was significant. Results: we included 78 cases, median age 63 years, 52.6% men. Surgery was the initial treatment in 46 patients (59%) and 87% achieved R0 resection. Adjuvant treatment was administered to 63% of patients. 29 patients (37.2%) started perioperative chemotherapy with 86.2% of them being resected, and 75.9% having R0 resection. 13 patients (44.8%) also received postoperative chemotherapy. Better performance status (p=0.036) and lower albumin levels (p=0.039) were found in patients with initial surgery vs those with perioperative chemotherapy. At the time of surgery, most patients had stage III disease in both groups but 5 patients had M1 disease despite negative initial laparoscopy in the chemotherapy group and 5 patients did not require aduvant tx given early stage in the surgery first group. Median OS and RFS are reported in table. Conclusions: Most patients in our center undergo initial surgery. We report a differential survival according to initial treatment. More advanced disease in chemotherapy first group may explain differences. Given non-random assignment, we could not show survival benefit of chemotherapy treated patients. [Table: see text]
Informing metastatic colorectal cancer patients by quantifying multiple scenarios for survival based on real-life data.
Authors: Hamers Patricia , Elferink Marloes A.G. , Stellato Rebecca K. , Punt Cornelis J. A. , May Anne Maria , Koopman Miriam , Vink Geraldine R. 
Published: February 2020

32 Background: Reported median overall survival (mOS) in trials of metastatic colorectal cancer (mCRC) patients receiving systemic therapy has increased to over 30 months. When informing patients, many clinicians quote the mOS reported in these trials. It is uncertain whether trial results translate to real-life populations. Moreover, patients prefer presentation of multiple survival scenarios over presentation of just mOS. Therefore, we quantified multiple scenarios for survival time of real-life mCRC patients. Methods: Nationwide population-based data of all stage IV CRC patients diagnosed between 2008 and 2016 were obtained from the Netherlands Cancer Registry. We calculated percentiles (scenarios) of OS per year of diagnosis for the total population, and for treatment subgroups: 10th (best-case), 25th (upper-typical), 50th (median), 75th (lower-typical), and 90th (worst-case). Results: The total study population comprised 27,275 patients. Twenty-five percent these patients did not receive any antitumor treatment. From 2008-2016, mOS of the total population remained unchanged at approximately 12 months. OS improved only for the upper-typical and best-case patients; by 4.2 to 29.1 months (p<0.001), and by 6.0 months to 62.0 months (p<0.001), respectively. No clinically relevant change was seen among patients who received systemic therapy, with mOS close to 15 months and best-case scenario approximately 40 months. mOS and worst-case scenario for survival were highest in patients who underwent both metastasectomy and systemic therapy: around 48 and 15 months, respectively. A clinically relevant improvement in survival over time was observed only in patients who initially received metastasectomy without systemic treatment. Conclusions: In contrast to the wide belief that mOS of mCRC patients receiving systemic therapy has improved substantially, improvement could not be demonstrated in our real-life population. Clinicians should consider quoting multiple scenarios for survival based on real-life data, instead of point estimates from clinical trials, when informing patients about their life expectancy.
Blood-based-inflammation-markers, body mass index, and survival of nonmetastatic esophageal cancer.
Authors: Wang Wanning , Soriano Joelle , Soberano Tyler , Hueniken Katrina , Brown M. Catherine , Taylor Kirsty , Bajwa Jaspreet K. , Dong George , Chen Eric Xueyu , Knox Jennifer J. , Jang Raymond Woo-Jun , Wong Rebecca , Darling Gail Elizabeth , Xu Wei , McInnis Micheal , Liu Geoffrey , Rozenberg Dmitry , Elimova Elena , Fares Aline Fusco 
Published: February 2020

324 Background: Blood-based-inflammation-markers (BBIM) and Body Mass Index (BMI) have been associated with overall survival (OS) in a number of cancers. Inflammation and obesity have biological interactions. We evaluated the role of Neutrophil-to-Lymphocyte-Ratio (NLR), Platelet-to-Lymphocyte-Ratio (PLR) and Systemic-Inflammation-Index (SII) in conjunction with BMI as predictors of OS in localized/locally-advanced-esophageal cancer (LEC/LAEC). Methods: LEC/LAEC patients treated from 2006-2014 had the following variables analyzed both as continuous and categorical: BMI (low <25 kg/m2, high ≥25 kg/m2), NLR (low <4, high ≥4), PLR (low <232, high ≥232), and SII (low <1375, high ≥1375), with OS. Univariate (UVA) and Multivariate analysis (MVA) were analyzed using Cox regression (adjusted hazard ratios, aHR; 95% Confidence Intervals, CI). MVA models of OS were built, assessing different categorical combinations of BBIM factors with and without BMI. Results: Of 411 pts, 79% were males, median age was 63.5 years, 67% were adenocarcinomas; Stage I/II/III: 14%, 28%, 59%; Median BMI was 26.5kg/m2 and BMI distribution was: 3% underweight, 40% normal weight, 37% overweight and 20% obese. After a median follow-up of 87 months, 204 pts recurred, and 257 died. In MVA, BMI alone had no impact on OS (aHR 0.89, CI 0.7-1.1, p=0.15); individually as continuous variables, higher SII (p=0.03) and higher NLR (p=0.006) were inversely associated with OS whereas higher PLR was not (p=0.10). In an MVA of categorical combinations of BMI and BBIM on OS, patients in the high-BMI/low-PLR group were at lower risk of death when compared to all other groups (aHR=0.65, 95%CI:0.5-0.8, p=0.007). Similar non-statistically significant trends were shown when SII and NLR were individually combined with BMI (aHR=0.77, 95%CI:0.6-1.0, p=0.09; aHR=0.74, 95%CI:0.5-1.0, p=0.05, respectively). Conclusions: Our results suggest that in LEC/LAEC pts, high BMI and low PLR together are associated with improved OS when compared to pts with low BMI and/or high PLR. NLR and SII alone were associated with OS. Further studies evaluating the underlying mechanisms of BBMI, in particular PLR and inflammation/obesity are warranted.
Tumor size and the risk for lymph node metastases in T1 esophageal adenocarcinoma.
Authors: Sadaps Meena , Mehta Neal , McNamara Michael J. , Khorana Alok A. , Bhatt Amit 
Published: February 2020

332 Background: Adjuvant therapy after endoscopic resection (ER) of T1 EAC in non-surgical candidates is largely based on the risk of LNM. Risk factors for LNM in T1 EAC are not clearly defined. Our aim is to evaluate risk factors for LNM in T1 EAC patients following esophagectomy or ER with ≥ 5 years of follow-up. Methods: This is a retrospective analysis at a large tertiary referral center. Our pathology database identified patients who underwent esophagectomy or ER with ≥ 5 years follow-up, with histologically proven T1 EAC from 2010-2017. Patients were excluded if they (a) received chemoradiation prior to esophagectomy or before/after ER (b) had any other primary cancer treated within the previous 5 years. Specimens were reviewed by an expert GI pathologist for accuracy. Results: Of 80 patients [85% males], 61 (76%) underwent esophagectomy and 19 (24%) underwent ER. Twelve (15%) developed LNM per study criteria. Tumor size was significantly (p-value 0.014) associated with risk of LNM (Table). No other factors including lymphovascular invasion, differentiation on pathology, macroscopic appearance, infiltration growth pattern, or tumor distance from the gastroesophageal junction were significant risk factors for LNM. Conclusions: In T1 EAC, tumor size appears to be a significant risk factor for LNM at five years following surgical or endoscopic resection. Adjuvant therapy should be considered in patients with larger tumor size. [Table: see text]
Exploring the epidemiology of gastric cancer in a Tibetan population.
Authors: Mehta Krisha K. , Sadutshang Tsetan D. , Namdon Tenzin , Woesal Tenzin , Grollman Arthur P. , Dickman Kathleen G. , Dorjee Kunchok 
Published: February 2020

335 Background: Gastric cancer is the 3rd leading cause of death from cancer and the 5th most common cancer world-wide. It is the primary cause of death for people of Tibetan origin in the Himalayan belt, with incidence (and death) rates between 60-140/100,000 people per year. Despite such a high disease burden, the epidemiology of gastric cancer has not been studied in this population. In this study, we explore gastric cancer risk factors among Tibetan refugees residing in India. Methods: Patients diagnosed with gastric cancer were identified by reviewing admission, discharge and out-patient endoscopy records between 2013-2019 at the Tibetan Delek hospital in Dharamshala, India. Risk factors not captured in the records were collected through interviews of patients or their relatives. Results: A total of 52 gastric cancer cases were identified, mostly males (77%). Median age was 78 (range: 30-91 years). Of the gastric cancer cases, 32% (n = 12/37) were retired military, 19% (n = 7/37) were monks or nuns, and 95% (n = 36/38) were born in Tibet. Sixty-five percent (n = 34/52) of the cases had histories of dyspepsia, 49% (n = 21/43) had used alcohol, and 40% (n = 17/43) were past smokers. Ninety-five percent (n = 20/21) of cases had been treated with traditional Tibetan medicines for various reasons in the past. Of the 17 patients (or relatives) interviewed for dietary risk factors, 76% (n = 13) reported frequent ingestion of stale and unrefrigerated food, 30% (n = 5) did not eat fresh fruit, and 47% (n = 8) reported intake of fresh fruit < 3 times per month. Most (83%, n = 24/29) patients had non-cardia cancers located in the fundus/body (n = 12) and antrum/pylorus (n = 12). Fifty-two percent (n = 16/31) had been treated with either chemotherapy, radiotherapy, or surgery, and 34% (n = 11/32) of the patients were receiving traditional Tibetan medicine as treatment for gastric cancer. Conclusions: Tibetan people have socio-cultural, behavioral and dietary risk factors that may be associated with gastric cancer. Investigations of causal factors (genetic, infective ( Helicobacter pylori), environmental) with possible synergistic interactions could inform clinical and public health practice for this population and globally.
Screening and treatment strategy for double cancer for esophageal cancer surgery patients.
Authors: Ogata Takashi , Shimoda Yota , Kano Kazuki , Koumori Keisuke , Watanabe Hayato , Fujikawa Hirohito , Yamada Takanobu , Oshima Takashi 
Published: February 2020

336 Background: Esophageal cancer treatment, especially esophagectomy, is highly invasive, so treatment strategies are considered in view of existing double cancers. On the other hand, in Japan, 90% of esophageal cancers are squamous cell carcinoma, and it is known that there are a large proportion of head and neck cancers for double cancers as field cancerization. Methods: The aim of this study is to investigate the types of double cancer, simultaneous/metachronous, and the frequency and treatment policy of head and neck cancer as a particularly high coexistence rate for esophageal cancer surgery patient. The subjects were 304 patients who underwent esophagectomy performed from April 2010 to December 2017. All patients were examined with high-definition endoscopy with NBI by certificated endoscopist at the first visit as a search for simultaneous double cancer from the pharynx to the stomach. And after esophagectomy, endoscopy was also performed to check for metachronous double cancers in the remaining esophagus, gastric tube, and pharynx at least every 2 years. Results: The number of double cancer cases was found in 94 cases (30.9%), and the total number of double cancer cases was 122. Head and neck cancer(33 cases), stomach cancer(16 cases), and colon cancer(12 cases) were observed as the main course of double cancers. In double cancer cases, 47cases(50.0%) were metachronous, 35cases(37.2%) were simultaneous, and 12cases(12.8%) were both synchronous. The most common double cancer was head and neck cancer(33 cases:35.1%), and 23 cases were simultaneous, 10 cases were metachronous. As treatment strategy for head and neck cancer, endoscopic laryngo-pharyngo surgery(ELPS) were 19 cases. 10 cases(52.7%) were synchronous cancers, and 9 cases (47.3%) were metachronous cancers which were detected during follow-up after esophagectomy. Conclusions: Head and neck cancer associated with esophageal cancer surgery is the most common type of double cancer, and 1/3 of ELPS cases have been detected by follow-up endoscopy after esophagectomy, so endoscopic surveillance was also considered important.
Outcomes of elderly patients with resectable liver metastases from colorectal cancer (CRLM): Single center experience.
Authors: Mansour Laura , Nassabein Rami Mohamad , Gryspeerdt Filip , Vandenbroucke-Menu Franck , Aubin Francine , Ayoub Jean-Pierre M. , Dagenais Michel , Lapointe Real W. , Letourneau Richard , Plasse Marylene , Roy Andre , Turcotte Simon , Tehfe Mustapha 
Published: February 2020

34 Background: Half of patients with colorectal cancer develop liver metastases during the course of their disease. Surgery is the only potentially curative option for CRLM if resectable. Treatment of patients over 70 years old is challenging mainly because of comorbidities and other geriatric syndromes. Thus, we intended to report our experience with elderly patients with resectable CRLM. Methods: After approval by the Institutional Review Board (IRB), all records from a prospectively collected database at Centre Hospitalier de l’Université de Monréal (CHUM) were retrospectively analyzed. Clinicopathological characteristics, surgery and chemotherapy treatment modalities were reviewed. RFS and OS in patients ≥ 70y were calculated using the Kaplan Meier survival curve. Results: From 2010 to 2016, 101 patients older than 70 years were identified. Safety and surgical complications were previously reported. Median age was 75 years. CRLM were synchronous in 46.5% and metachronous in 53.5%. Relapse free survival (RFS) of patients ≥ 70 years was 33.7 months. Overall survival (OS) of patients ≥70 years was comparable to those of less than 65 years old (median OS: 56 vs 62 months; p = 0.15, respectively). Hepatic relapse showed worse survival when compared to extra-liver recurrence, mOS: 44 vs 33.2 vs 29.3 months for non-hepatic, hepatic only and hepatic with other sites respectively (trend p = 0.034). Although non-statistically significant, Patients with metachronous CRLM had superior mOS compared to those with synchronous disease (58.7 vs 44.7 months; p = 0.22). Conclusions: Survival Outcomes of patients with an age ≥ 70 years were comparable to those of younger patients and what is reported in literature. Age should not be a limiting factor in the management of elderly patients with resectable CRLM. Hepatic metastatectomies +/- chemotherapy should be offered with curative intents.