Stephen L. Jones

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A novel computer simulator is now commercially available for robotic surgery using the da Vinci® System (Intuitive Surgical, Sunnyvale, CA). Initial investigations into its utility have been limited due to a lack of understanding of which of the many provided skills modules and metrics are useful for evaluation. In addition, construct validity testing has(More)
The actual dietary protein intake of adults without and with different stages of chronic kidney disease is not known. To evaluate this we performed cross-sectional analyses of 16,872 adults (20 years of age and older) participating in the National Health and Nutrition Examination Survey 2001-2008 who completed a dietary interview by stage of kidney disease.(More)
BACKGROUND Sepsis is the leading cause of mortality in noncoronary intensive care units. Recent evidence based guidelines outline strategies for the management of sepsis and studies have shown that early implementation of these guidelines improves survival. We developed an extensive logic-based sepsis management protocol; however, we found that early(More)
OBJECTIVE This study aimed to assess kidney dysfunction in general surgical patients and examine the effect on postoperative mortality and morbidity. BACKGROUND An estimated 13% of the US population has chronic kidney disease (CKD), but awareness among patients and caregivers is lacking. METHODS The American College of Surgeons National Surgical Quality(More)
BACKGROUND The purpose of this study was to assess how surgical intensive care unit (SICU) patients and their families would perceive robotic telepresence. We hypothesized that they would view such technology positively. METHODS This research was an Institutional Review Board-approved prospective observational study. Our robotic telepresence program(More)
The aim of the present preliminary study was to investigate the potential of measurement of IFN-γ secretion by T cells into blood plasma using QuantiFERON assay with leishmanial antigens to determine the presence of Leishmania infection. Blood samples from cured visceral (N = 18), and cutaneous (N = 20) leishmaniasis cases, and 20 healthy controls were(More)
BACKGROUND Nucleated red blood cells (NRBCs) are present in certain non-oncologic disease states and are associated with a poor prognosis. The purpose of this study was to evaluate NRBCs as an early prognostic marker for death in patients with surgical sepsis. METHODS Retrospective evaluation of data collected prospectively from 275 patients from our(More)
BACKGROUND For the past two decades multiple series have documented that liver resection has become safer. The purpose of this study was to determine the current status of hepatic resection in the USA by analysing the multi-institutional experience within the National Surgical Quality Improvement Program (NSQIP) dataset. METHODS Of the 363,897 cases in(More)
OBJECTIVE To document the incidence, mortality rate, and risk factors for sepsis and septic shock compared with pulmonary embolism and myocardial infarction in the general-surgery population. DESIGN Retrospective review. SETTING American College of Surgeons National Surgical Quality Improvement Program institutions. PATIENTS General-surgery patients(More)
BACKGROUND Liver resections (LRs) are performed with increasing frequency for metastatic disease. To minimize the risk of postoperative complications, a period of 6 weeks between the last dose of chemotherapy and LR is typically recommended. The current study examines postoperative morbidity and mortality following LR in patients who received chemotherapy(More)