6 results on '"Donovan EC"'
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2. Defining the operative time threshold for safety in patients undergoing robotic pancreaticoduodenectomy.
- Author
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Delman AM, Whitrock JN, Turner KM, Donovan EC, Quillin RC 3rd, Shah SA, Patel SH, Ahmad SA, and Wilson GC
- Subjects
- Humans, Pancreaticoduodenectomy adverse effects, Pancreaticoduodenectomy methods, Operative Time, Postoperative Complications epidemiology, Postoperative Complications etiology, Postoperative Complications surgery, Retrospective Studies, Robotic Surgical Procedures adverse effects, Robotic Surgical Procedures methods, Pancreatic Neoplasms
- Abstract
Background: Robotic pancreaticoduodenectomy (RPD) is a safe and efficacious procedure in appropriately selected patients, though frequently with increased operative times compared to open pancreaticoduodenectomy (OPD)., Methods: From 2014 to 2019, patients who underwent elective, low-risk, RPDs and OPDs in the NSQIP database were isolated. The operative time threshold (OTT) for safety in RPD patients was estimated by identifying the operative time at which complication rates for RPD patients exceeded the complication rate of the benchmark OPD control., Results: Of 6270 patients identified, 939 (15%) underwent RPD and 5331 (85%) underwent OPD. The incidence of major morbidity or mortality for the OPD cohort was 35.1%. The OTT was identified as 7.7 h. Patients whose RPDs were above the OTT experienced a higher incidence of major morbidity (42.5% vs. 35.0%, p < 0.01) and 30-day mortality (2.7% vs. 1.2%, p = 0.03) than the OPD cohort. Preoperative obstructive jaundice (OR: 1.47, [95% CI: 1.08-2.01]) and pancreatic duct size <3 mm (OR: 2.44, [95% CI: 1.47-4.06]) and 3-6 mm (OR: 2.15, [95% CI: 1.31-3.52]) were risk factors for prolonged RPDs on multivariable regression., Conclusion: The operative time threshold for safety, identified at 7.7 h, should be used to improve patient selection for RPDs and as a competency-based quality benchmark., (Copyright © 2023 International Hepato-Pancreato-Biliary Association Inc. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
3. Incidence of Postoperative Complications Following Pancreatectomy for Pancreatic Cystic Lesions or Pancreatic Cancer.
- Author
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Donovan EC, Prakash LR, Chiang YJ, Bruno ML, Maxwell JE, Ikoma N, Tzeng CD, Katz MHG, Lee JE, and Kim MP
- Subjects
- Humans, Pancreatectomy adverse effects, Incidence, Pancreaticoduodenectomy adverse effects, Postoperative Complications epidemiology, Postoperative Complications etiology, Postoperative Complications surgery, Pancreatic Fistula epidemiology, Pancreatic Fistula etiology, Pancreatic Fistula surgery, Retrospective Studies, Pancreatic Neoplasms pathology, Carcinoma, Pancreatic Ductal surgery, Carcinoma, Pancreatic Ductal complications, Pancreatic Cyst surgery
- Abstract
Background: In contrast to pancreatic ductal adenocarcinoma (PDAC), the risks of pancreatectomy for mucinous pancreatic cysts (MCs) are balanced against the putative goal of removing potentially malignant tumors. Despite undergoing similar operations, different rates of perioperative complications and morbidity between MC and PDAC patient populations may affect recommendations for resection. We therefore sought to compare the rates of postoperative complications between patients undergoing pancreatectomies for MCs or PDAC., Methods: A prospectively maintained institutional database was used to identify patients who underwent surgical resection for MCs or PDAC from July 2011 to August 2019. Patient demographics, complications, and perioperative data were compared between groups., Results: A total of 103 patients underwent surgical resection for MCs and 428 patients underwent resection for PDAC. Combined major 90-day postoperative complications were similar between MC and PDAC patients undergoing pancreaticoduodenectomy (PD, 32.5% vs. 20.0%, p = 0.068) or distal pancreatectomy (DP, 30.2% vs. 20.5%, p = 0.172). The most frequent complications were postoperative pancreatic fistula (POPF), abscess, and postoperative bleeding. The incidence of 90-day ISGPS Grade B/C POPF was higher in cyst patients undergoing PD (17.5% vs. 4.1%, p = 0.003) but not DP (25.4% vs. 20.5%, p = 0.473). No significant differences in operative time or length of stay between MCs and PDAC cohorts were observed., Conclusions: POPFs occur more frequently and at higher grades in patients undergoing PD for MCs than for PDAC and should inform patient selection. Accordingly, the perioperative management of MC patients undergoing PD should emphasize POPF risk mitigation., (© 2022. The Society for Surgery of the Alimentary Tract.)
- Published
- 2023
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- View/download PDF
4. Total pancreatectomy and islet cell autotransplantation: a 10-year update on outcomes and assessment of long-term durability.
- Author
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Turner KM, Delman AM, Donovan EC, Brunner J, Wahab SA, Dai Y, Choe KA, Smith MT, Patel SH, Ahmad SA, and Wilson GC
- Subjects
- Humans, Pancreatectomy adverse effects, Transplantation, Autologous, Quality of Life, Treatment Outcome, Islets of Langerhans Transplantation adverse effects, Pancreatitis, Chronic surgery, Islets of Langerhans surgery
- Abstract
Background: Total pancreatectomy and islet cell autotransplantation (TPIAT) offers an effective, lasting solution for the management of chronic pancreatitis up to 5-years post-operatively. Our aim was to assess durability of TPIAT at 10-years., Methods: Patients undergoing TPIAT for chronic pancreatitis eligible for 10-year follow-up were included. Primary outcomes, including endocrine function and narcotic requirements, were reported at 5-, 7.5-, and 10-years post-operatively., Results: Of the 231 patients who underwent TPIAT, 142 met inclusion criteria. All patients underwent successful TPIAT with an average of 5680.3 islet equivalents per body weight. While insulin independence tended to decrease over time (25.7% vs. 16.0% vs. 10.9%, p = 0.11) with an increase in HbA
1C (7.6% vs. 8.2% vs. 8.4%, p = 0.09), partial islet function persisted (64.9% vs. 68.0% vs. 67.4%, p = 0.93). Opioid independence was achieved and remained durable in the majority (73.3% vs. 72.2% vs. 75.5%, p = 0.93). Quality of life improvements persisted, with 85% reporting improvement from baseline at 10-years. Estimated median overall survival was 202.7 months., Conclusion: This study represents one of the largest series reporting on long-term outcomes after TPIAT, demonstrating excellent long-term pain control and durable improvements in quality of life. Islet cell function declines over time however stable glycemic control is maintained., (Copyright © 2022. Published by Elsevier Ltd.)- Published
- 2022
- Full Text
- View/download PDF
5. Evaluation and quality improvement of Doctor of Nursing Practice-Family Nurse Practitioner scholarly projects.
- Author
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Donovan EC, Holvoet JA, and Hall KN
- Abstract
Background: The Commission on Collegiate Nursing Education's accreditation standards require nursing programs to demonstrate that students acquire doctoral-level knowledge and competencies beyond that expected at the baccalaureate and/or masters levels. The purpose of this article was to describe a quality improvement (QI) project for Doctor of Nursing Practice-Family Nurse Practitioner (NP) scholarly projects., Local Problem: Nurse practitioner faculty inquired about whether students' scholarly projects were of the quality and rigor expected at the doctoral, rather than masters, level., Methods: This project was conducted as a QI initiative and was designated as such by the institutional review board. Methods were based on Deming Plan-Do-Study-Act QI process model., Interventions: Two doctorally prepared nursing faculty evaluated nine doctoral scholarly projects using the Roush DNP-PCAT instrument. This instrument evaluates 16 components, and key elements within each component, for completeness. The DNP-PCAT tool was evaluated for interrater reliability and content validity in an earlier study., Results: Strengths and weaknesses were identified using quantitative and qualitative data analyses. Floor effects were seen in strategic planning, ethical concerns, data collection, results, discussion, and limitations. Qualitative findings identified weaknesses across all 16 components. Findings were similar to the results reported in a prior study. Results were reviewed and action plans were developed to improve the rigor of scholarly projects., Conclusions: The nursing faculty plan to incorporate routine evaluation of scholarly projects into their program evaluation. Other NP programs may benefit from instituting a similar process., Competing Interests: Competing interests: The authors report no conflicts of interest., (Copyright © 2021 American Association of Nurse Practitioners.)
- Published
- 2022
- Full Text
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6. Vascular endothelial growth factor receptor-2 inhibition in experimental murine colitis.
- Author
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Knod L, Donovan EC, Chernoguz A, Crawford KM, Dusing MR, and Frischer JS
- Subjects
- Acute Disease, Animals, Body Weight drug effects, Colitis chemically induced, Colitis immunology, Dextran Sulfate pharmacology, Disease Models, Animal, Gene Expression drug effects, Gene Expression immunology, MAP Kinase Signaling System drug effects, MAP Kinase Signaling System immunology, Male, Mice, Mice, Inbred C57BL, Microcirculation drug effects, Microcirculation immunology, Neovascularization, Pathologic immunology, Vascular Endothelial Growth Factor A genetics, Vascular Endothelial Growth Factor A immunology, Vascular Endothelial Growth Factor Receptor-2 genetics, Antibodies, Monoclonal pharmacology, Colitis drug therapy, Neovascularization, Pathologic drug therapy, Vascular Endothelial Growth Factor Receptor-2 antagonists & inhibitors, Vascular Endothelial Growth Factor Receptor-2 immunology
- Abstract
Background: In the setting of inflammatory bowel disease, inflammation is associated with a simultaneous increase in angiogenesis; moreover, elevated vascular endothelial growth factor (VEGF) levels implicate angiogenesis as a pathologic contributor to disease severity. We hypothesize that selectively inhibiting vascular endothelial growth factor receptor-2 (VEGFR2) in a model of murine colitis will reduce angiogenesis, resulting in decreased inflammation and disease severity, providing mechanistic insight into the role of pathologic angiogenesis in IBD., Materials and Methods: In a dextran sodium sulfate model of murine colitis, anti-VEGFR2 monoclonal antibody (DC101) or placebo was administered. Clinical assessments followed by histologic and molecular tissue analysis were performed to quantify inflammation, microvessel density (MVD), VEGF and VEGFR2 gene expression, and phosphorylated mitogen-activated protein kinase protein expression., Results: Weight loss began after d 6 with the treatment group demonstrating a more favorable percent weight change. Inflammation and MVD were similar between cohorts, both increasing in parallel toward a plateau. VEGF and VEGFR2 messenger RNA expression were not significantly different, but phosphorylated mitogen-activated protein kinase was elevated in the DC101 cohort (P = 0.03)., Conclusions: Despite a more favorable weight change profile in the treated group, no difference was observed between cohorts regarding clinical disease severity. However, a parallel rise in inflammation and MVD was observed coinciding with weight loss, suggesting their relationship in IBD. VEGFR2 downstream signaling was significantly elevated in the treated cohort, possibly by VEGF-independent signal transduction. Early and effective inhibition of angiogenesis by limiting downstream VEGF signaling or targeting multiple angiogenic pathways may block angiogenesis, thereby reducing disease severity and provide evidence toward the mechanism and clinical benefit of antiangiogenics in the setting of IBD., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
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