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Although postoperative adjuvant chemotherapy for pancreatic carcinoma improves survival in some patients, its efficacy varies among individuals. The aim of this study was to determine the usefulness of intratumoral expression of human equilibrative nucleoside transporter 1 (hENT1) and ribonucleotide reductase regulatory subunit M1 (RRM1) as predictive markers of the efficacy of adjuvant gemcitabine-based...
Locoregional recurrence occurs in approximately 20% of patients with melanoma and is associated with a significantly worse prognosis. Standards are well established for peripheral margins; however, there is insufficient evidence regarding depth of resection.Retrospective review of 964 patients undergoing excision of trunk or extremity melanoma ≥1 mm thick during a 29-year period at a tertiary academic...
Despite the accumulation of favorable results from laparoscopic liver resection (LLR), centrally located tumors close to the hilum, major hepatic veins, or inferior vena cava (IVC) are still considered contraindications for LLR. We evaluated the feasibility and safety of LLR for centrally located tumors.Of the 182 patients who underwent LLR for benign or malignant tumors between September 2003 and...
Surgical never events are being used increasingly as quality metrics in health care in the United States. However, little is known about their costs to the health care system, the outcomes of patients, or the characteristics of the providers involved. We designed a study to describe the number and magnitude of paid malpractice claims for surgical never events, as well as associated patient and provider...
Hepatocellular carcinoma (HCC) is among the most common malignant neoplasms worldwide. Only few data on HCC in noncirrhotic livers without viral hepatitis in Western countries are available. The purpose of this study was to define the outcomes and potential prognostic factors associated with survival after hepatic resection in patients with HCC in the absence of liver cirrhosis and hepatitis B or...
Despite relatively sparse data regarding their outcomes in the setting of infection, biologic grafts have gained rapid acceptance by the surgical community for complex hernia repair. These materials are heterogeneous in their procurement and processing techniques, which may ultimately have an impact in their ability to withstand infection. The objective of this study is to evaluate the impact of varying...
Brief preoperative dietary interventions emphasizing reduced calorie and protein intake will decrease perioperative morbidity and mortality associated with vascular operative procedures by modulating maladaptive response to operative stress.
We demonstrated previously that ischemic postconditioning (IPo) attenuated intestinal injury induced by intestinal ischemia/reperfusion (I/R), and thereafter employed a proteomic method to identify aldose reductase (AR), a differentially expressed protein in intestinal mucosal tissue, which was downregulated by intestinal I/R and upregulated by IPo. This study aimed to further explore the possible...
The h-index is used as an objective measure of research impact. Its validity, however, is not known in the context of general surgery and comparisons with other bibliometric indices are lacking. We sought to evaluate the h-index as a reliable and valid measure of research performance in general surgery across 6 universities in the province of Ontario, Canada.Bibliometric indices for 219 faculty members...
Unlike new drugs and medical devices, most surgical procedures are developed outside clinical trials and without regulatory oversight. Surgical professional organizations have discussed how new procedures should be introduced into practice without agreement on what topics informed consent discussions must include. To provide surgeons with more specific guidance, we wanted to determine what information...
Neural Wiskott-Aldrich syndrome protein (N-WASP) mediates migration and invasion in cancer cells, but its expression and clinicopathologic and prognostic importance in hepatocellular carcinoma (HCC) remain unknown. The present study was designed to address these issues.N-WASP expression was first analyzed by Western blotting in 19 paired HCC and paratumoral liver (PTL) tissues. We further evaluated...
Short-term changes in preoperative nutrition can have profound effects on surgery-related outcomes such as ischemia/reperfusion injury in preclinical models. Dietary interventions that lend protection against stress in animal models (eg, fasting, dietary restriction [DR]) impact adipose tissue quality/quantity. Adipose tissue holds high surgical relevance because of its anatomic location and large...
In colorectal surgeries, surgical site infections (SSIs) frequently cause morbidity; an incidence of up to 20% has been shown in previous studies. Recently, to prevent microbial colonization of suture material in operative wounds, triclosan-coated polyglactin suture materials with antimicrobial activity have been developed; however, their significance in colorectal surgery remains unclear. This randomized...
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