Open Forum Infect Dis
November 2021
Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA loads in patient specimens may act as a clinical outcome predictor in critically ill patients with coronavirus disease 2019 (COVID-19).
Methods: We evaluated the predictive value of viral RNA loads and courses in the blood compared with the upper and lower respiratory tract loads of critically ill COVID-19 patients. Daily specimen collection and viral RNA quantification by reverse transcription quantitative polymerase chain reaction were performed in all consecutive 170 COVID-19 patients between March 2020 and February 2021 during the entire intensive care unit (ICU) stay (4145 samples analyzed).
Pancreatic ductal adenocarcinoma (PDAC) is among the most lethal cancers. Its poor prognosis is predominantly due to the fact that most patients remain asymptomatic until the disease reaches an advanced stage, alongside the lack of early markers and screening strategies. A better understanding of PDAC risk factors is essential for the identification of groups at high risk in the population.
View Article and Find Full Text PDFIn this study, we directly compared coronavirus disease 2019 (COVID-19) patients hospitalized during the first (27 February-28 July 2020) and second (29 July-31 December 2020) wave of the pandemic at a large tertiary center in northern Germany. Patients who presented during the first ( = 174) and second ( = 331) wave did not differ in age (median [IQR], 59 years [46, 71] vs. 58 years [42, 73]; = 0.
View Article and Find Full Text PDFPancreatic ductal adenocarcinoma (PDAC) is projected to become the second cancer-related cause of death by 2030. Identifying novel risk factors, including genetic risk loci, could be instrumental in risk stratification and implementation of prevention strategies. Long noncoding RNAs (lncRNAs) are involved in regulation of key biological processes, and the possible role of their genetic variability has been unexplored so far.
View Article and Find Full Text PDFBackground: Resection margin status and lymph node (LN) involvement are known prognostic factors for patients who undergo pancreatoduodenectomy for pancreatic ductal adenocarcinoma (PDAC). This study aimed to compare overall survival (OS) and disease-free survival (DFS) by resection margin status in patients with PDAC and LN involvement.
Methods: A retrospective international multicentric study was performed including four Western centers.
Background: Most cases of pancreatic ductal adenocarcinoma (PDAC) are asymptomatic in early stages, and the disease is typically diagnosed in advanced phases, resulting in very high mortality. Tools to identify individuals at high risk of developing PDAC would be useful to improve chances of early detection.
Objective: We generated a polygenic risk score (PRS) for PDAC risk prediction, combining the effect of known risk SNPs, and carried out an exploratory analysis of a multifactorial score.
Early onset pancreatic cancer (EOPC) is a rare disease with a very high mortality rate. Almost nothing is known on the genetic susceptibility of EOPC, therefore, we performed a genome-wide association study (GWAS) to identify novel genetic variants specific for patients diagnosed with pancreatic ductal adenocarcinoma (PDAC) at younger ages. In the first phase, conducted on 821 cases with age of onset ≤60 years, of whom 198 with age of onset ≤50, and 3227 controls from PanScan I-II, we observed four SNPs (rs7155613, rs2328991, rs4891017 and rs12610094) showing an association with EOPC risk (P < 1 × 10 ).
View Article and Find Full Text PDFThe aim of the present review was to analyze the current data on surgery of synchronous liver metastases in pancreatic ductal adenocarcinoma (PDAC) in curative intent. A review of the literature was carried out to identify the current international concepts regarding surgery of liver metastases of PDAC and, furthermore, we addressed the current challenges of resection of liver metastases of PDAC. Resection of liver metastases in PDAC may provide survival benefit without compromising safety and quality of life in a highly selected group of patients.
View Article and Find Full Text PDFThe function of Forkhead box O 1 (FOXO1) and pSerine256-FOXO1 immunostaining in esophageal cancer is unclear. To clarify the prognostic role of nuclear FOXO1 and cytoplasmic pSerine256-FOXO1 immunostaining, a tissue microarray containing more than 600 esophageal cancers was analyzed. In non-neoplastic esophageal mucosae, FOXO1 expression was detectable in low and pSerine256-FOXO1 expression in high intensities.
View Article and Find Full Text PDFDevelopment and progression of malignant tumors is in part characterized by the ability of a tumor cell to overcome cell-cell and cell-matrix adhesion and to disseminate in organs distinct from that in which they originated. This study was undertaken to analyze the clinical significance of the expression of the following cell-cell and cell-matrix adhesion molecules in pancreatic ductal adenocarcinomas (PDACs) and synchronous liver metastases: intercellular adhesion molecule 1 (ICAM-1), E-cadherin, periostin, and midkine (MK). ICAM-1, E-cadherin, periostin and MK expression was analyzed by immunohistochemistry on a tissue microarray containing 34 PDACs and 12 liver metastasis specimens.
View Article and Find Full Text PDFBackground: The aim of this study was to establish a new preoperative staging classification and evaluate its comparability to the post-operative tumour stage, lymph node invasion and metastasis (TNM) classification. To date, adequate, preoperative staging in patients with oesophageal carcinoma (EC) is still missing but urgently needed. Systemic inflammation and disseminated tumour load have a pivotal role in recurrence and oncological outcome.
View Article and Find Full Text PDFBackground: Esophageal resection for cancer (EC) is still associated with considerable mortality and morbidity rates. Allogenic blood transfusion (aBT) is associated with poor short-term and long-term outcome in surgical oncology. We aimed to evaluate the effect of aBT in a homogeneous population of EC patients undergoing esophagectomy without perioperative treatment.
View Article and Find Full Text PDFObjective: The aim of this study is to investigate the impact of the circumferential resection margin (CRM) in esophageal cancer on survival and recurrence in patients without pretreatment.
Background: Whereas the infiltration of the proximal or distal resection margin is associated with poor survival and higher recurrence, studies looking at the role of the circumferential resection margin on survival and local recurrence after esophagectomy are conflicting.
Methods: Influence of CRM infiltration according to the College of American Pathologists (CAP) and Royal College of Pathologists (RCP) on long-term survival of 180 patients with resected pT3 tumors and without neoadjuvant therapy was analyzed.
Objective: To retrospectively assess the frequency and indications for emergency pancreatoduodenctomies in a tertiary referral center.
Methods: Pancreatoduodenectomies between January 2005 and January 2014 were retrospectively assessed for emergency indications defined as surgery following unplanned hospital admission in less than 24 h. Data on indications and on the intraoperative as well as the post-operative course were collected.
Background: Systemic inflammation is a key factor in tumor growth. C-reactive protein and albumin are parameters of systemic inflammation from the Glasgow Prognostic Score (GPS). The purpose was to evaluate the prognostic role of GPS in a homogeneous population of gastric cancer patients undergoing surgical treatment only.
View Article and Find Full Text PDFEsophageal resection in patients with esophageal cancer (EC) is still associated with high mortality and morbidity rates. We aimed to develop a simple preoperative risk score for the prediction of short-term and long-term outcomes for patients with EC treated by esophageal resection. In total, 498 patients suffering from esophageal carcinoma, who underwent esophageal resection, were included in this retrospective cohort study.
View Article and Find Full Text PDFObjective: The aim of this study is to evaluate the impact of upfront surgery without neoadjuvant pretreatment on survival in patients with clinically staged locally advanced esophageal carcinoma before the new era of neoadjuvant therapy regimes.
Material And Methods: This is a retrospective analysis of prospectively collected data of patients with clinically advanced esophageal cancer (cT3) and without neoadjuvant treatment who underwent transthoracic esophagectomy (TTE) in curative intent between 1992 and 2009. Locally advanced esophageal cancer was defined based on presurgical computertomography, endoscopy, and endosonography findings as a tumor infiltrating the paraesophageal tissue or the adjacent structures, with or without lymph node affection.
Background: Post-pancreatic surgical morbidity is frequent but often manageable by less invasive means than re-operation. Yet, some complications can become hazardous and life threatening. Herein, the results of a completion pancreatectomy (CP) to cope with severe post-operative pancreatic fistulas (POPF) and bleeding complications after major pancreatic resections for suspected pancreatic malignancy are presented.
View Article and Find Full Text PDFBackground And Objective: Cyclin D1 is an important regulator protein for the G1-S cell cycle phase transition. The aim of this trial was to evaluate the impact of the CCND1 polymorphism G870A and corresponding protein expression and CCND1 amplification on the survival of the patients.
Methods: 425 patients with ductal pancreatic adenocarcinoma who underwent resection were included after histopathological confirmation.
Objectives: Development of a simple preoperative risk score to predict morbidity related to pancreatic surgery.
Background: Pancreatic surgery is standardized with little technical diversity among institutions and unchanging morbidity and mortality rates in recent years. Preoperative identification of high-risk patients is potentially one of the rare avenues for improving the clinical course of patients undergoing pancreatic surgery.
Objective: To analyze survival differences between transthoracic esophagectomy (TTE) and limited transhiatal esophagectomy (THE) in clinically (cT3) and pathologically (pT3) staged advanced tumors without neoadjuvant treatment.
Background: Debate exists whether in the type of resection in locally advanced cancer plays a role in prognosis and whether THE is a valuable alternative to TTE regarding oncological doctrine and overall survival.
Methods: In a retrospective study of 2 high-volume centers, 468 patients with cT3NXM0 esophageal cancer, including 242 (51.
Background: Surgery for early esophageal carcinoma has been challenged by less invasive endoscopic approaches. Selecting patients in need for surgical intervention according to their risk of lymphatic spread is mandatory.
Objective: The aim of this study was to evaluate risk factors for lymphatic metastasis formation in T1b esophageal carcinomas.
Objective: The aim of this study was to assess the influence of lymphatic and vascular invasion on overall survival in patients with surgically resected non-small cell lung cancer (NSCLC) without lymph node and distant metastases.
Methods: From January 1999 to December 2009, a total of 190 NSCLC patients with node-negative pT1-pT4 disease underwent radical resection with lymphadenectomy. Pathologic reports were reclassified to the TNM-7 version, and the influence of lymphatic and vascular invasion on overall survival was examined using Kaplan-Meier and adjusted Cox proportional hazards analyses.
The progress of non-small cell lung cancer (NSCLC) is dependent on sufficient angiogenesis. Thrombin induced activation of proteinase-activated receptor 1 (PAR-1) on platelets leads to platelet secretion and aggregation. This influences cell survival, apoptosis and angiogenesis by the release of VEGF and Endostatin (ES), a potent angiogenesis inhibitor.
View Article and Find Full Text PDFDue to the late onset of symptoms in pancreatic cancer, patients are often presented with an already advanced or metastatic state of disease. Only in a minority of patients is a tumor resection indicated, e.g.
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