University of California San Francisco

Dr. Warren Gasper
Warren
Gasper
MD

Associate Professor of Surgery,
Division of Vascular and Endovascular Surgery
Chief, Vascular Surgery Section,
San Francisco VA Health Care System
Director, Vascular Integrated Physiology and
Experimental Therapeutics (ViperX)
Associate Director, Vascular Surgery Integrated Residency Program

Academic Office:
400 Parnassus Ave, A581, Box 0222
San Francisco, CA 94143
Tel: 415-353-4366
Email: [email protected] 
Asst: [email protected]

Vascular Surgery Clinic:
400 Parnassus Ave, A501, Box 0957
San Francisco, CA 94143
Tel: 415-353-2357
Fax: 415-353-2669

Vascular Surgery Clinic at SFVA:
4150 Clement Street 
San Francisco, CA 94121
Tel: 415-221-4810 x25496 

Biography

My current research interests fall broadly into the categories of vein / vein graft physiology and advanced endovascular aneurysm therapies. Over the past 4 years I have been working with Dr Michael Conte and Dr Christopher Owens in the UCSF Division of Vascular and Endovascular Surgery on several projects involving vein graft physiology, which have lead to several presentations at national meetings as well as publications. We have found that after lower extremity bypass surgery most luminal dilation occurs early (30 days) and is typically complete by 3 months. However, the response is not uniform and it appears that a mixture of local factors (e.g. vein diameter and quality), biologic factors (e.g. preoperative hsCRP levels) and systemic factors (e.g. race, indication for bypass surgery) are involved in the remodeling response.
My second major area of research interest is advanced endovascular therapies for aortic aneurysms. The development and widespread adoption of endovascular stent-grafts for infrarenal aortic aneurysms and thoracic aortic aneurysms have dramatically reduced the physiologic demands, complication rates and length of hospitalization for patients undergoing infrarenal or thoracic aortic aneurysm repairs compared to open techniques. However, aneurysms of thoracoabdominal, paravisceral and/or pararenal aorta require even more demanding operations with a higher rate of complications and longer hospitalizations. For the past 4 years I have worked with Dr. Timothy Chuter and Dr. Linda Reilly in the UCSF Division of Vascular and Endovascular Surgery to develop the multi-branched endovascular thoracoabdominal aneurysm repair technique. The technique is being studied under an FDA IDE in a CHR-approved study at UCSF and the San Francisco VA. As the co-principal investigator, I am responsible for overseeing the regulatory and subject care activities for the study at the San Francisco VA. This work has included consultations in the outpatient clinic, planning and performing the multi-branched endovascular repairs and analyzing the results of the study.

Awards & Honors

Award Conferred By Date
Lim/Thomas Excellence in Teaching Award UCSF Department of Surgery Chief Residents 2018
Excellence in Teaching Award UCSF Haile T. Debas Academy of Medical Educators 2017
First place, Poster Competition Society for Vascular Surgery Annual Meeting 2011

Education

Institution Degree Dept or School End Date
University of California, San Francisco Vascular Surgeyr Fellowship School of Medicine 2013
University of California, San Francisco Vascular Surgery Fellowship School of Medicine 2011
University of California, San Francisco General Surgery Residency School of Medicine 2010
Univeristy of Maryland, Baltimore M.D. School of Medicine 2003
Bowdoin College A.B Biochemistry & German 1999

Clinical Expertise

Aortic Dissection

Abdominal Aortic Aneurysm

Carotid Artery Disease

Complex Limb Revascularization

Critical Limb Ischemia

Diabetic Vascular Disease

Dialysis Access

Endovascular Aneurysm Repair

Mesenteric Artery Disease

Peripheral Artery Disease

Thoracic Aortic Aneurysm

Thoracic Outlet Syndrome

Clinical Trials

  1. Nectero EAST System Clinical Study (NCT06001918)
    Related Conditions: Abdominal Aortic Aneurysm, Aneurysm| Start Date: | End Date:
  2. Endovascular Exclusion of Thoracoabdominal and/or Paravisceral Abdominal Aortic Aneurysm (NCT00483249)
    Related Conditions: Aneurysm, Abdominal Aortic Aneurysm| Start Date: | End Date:
  3. Branched Aortic Arch Study (NCT00488696)
    Related Conditions: Aneurysm| Start Date: | End Date:
  4. Intima Versus Adventitia Drug Delivery to Elucidate Mechanisms of Restenosis: Magnetic Resonance Imaging (NCT02807779)
    Related Conditions: Peripheral Artery Disease, Vascular Disease, Chronic Limb-Threatening Ischemia, Critical Limb Ischemia, MRI, Neuroimaging| Start Date: | End Date:
  5. The Effects of Omega-3 Fatty Acids Supplementation on Endothelial Function and Inflammation (NCT01310270)
    Related Conditions: Peripheral Artery Disease, Vascular Disease| Start Date: | End Date:
  6. Use of Fish Oil to Reduce Inflammation During Endovascular Abdominal Aortic Repair (NCT03208920)
    Related Conditions: Peripheral Artery Disease, Abdominal Aortic Aneurysm, Aneurysm| Start Date: | End Date:
  7. The Effects of Omega-3 Fatty Acids on Peripheral Arterial Disease II (NCT01979874)
    Related Conditions: Peripheral Artery Disease, Vascular Disease| Start Date: | End Date:
  8. The Use of Fish Oil to Reduce Inflammation Caused by a Peripheral Vascular Intervention (NCT02096757)
    Related Conditions: Peripheral Artery Disease, Vascular Disease| Start Date: | End Date:
  9. Dexamethasone Infusion to the Adventitia to Enhance Clinical Efficacy After Femoropopliteal Revascularization (NCT01507558)
    Related Conditions: Peripheral Artery Disease, Vascular Disease| Start Date: | End Date:
  10. Endothelial Function and Vein Graft Remodeling (NCT00831090)
    Related Conditions: Peripheral Artery Disease, Cardiovascular Disease, Vascular Disease| Start Date: | End Date:
  11. Endothelial Function and Arterio-Venous Fistula Maturation (NCT01604473)
    Related Conditions: Chronic Kidney Disease, Kidney Disease, Arteriovenous Fistula, Fistula| Start Date: | End Date:

In the News

UCSF Department of Surgery Faculty Honored with Excellence in Teaching Awards
October, 02, 2017 | UCSF Department of Surgery
Warren J. Gasper, M.D. Wins Top Prize at SVS Poster Competition
August, 12, 2011 | UCSF Vascular & Endovascular Surgery

Grants and Funding

  • Transfusion Trigger after Operations in High Cardiac Risk Patients | VA Cooperative Studies Program | 2017-10-01 - 2022-02-28 | Role: Co-local Site Investigator
  • Targeted Endovascular Treatment of Inflammation for Vascular Healing in Humans | NIH/NHLBI | 2015-08-18 - 2020-04-30 | Role: Co-Investigator
  • Imaging Substudy, part of "A Phase 2 Study for the Evaluation of Safety and Efficacy of Humacyte's Human Acellular Vessel for Use as a Vascular Prosthesis for Femoro-Popliteal Bypass in Patients With Peripheral Arterial Disease" | Industry | 2016-06-13 - 2020-03-31 | Role: Principal Investigator
  • Randomized, Multicenter, Controlled Trial to Compare Best Endovascular versus Best Surgical Therapy in Patients With Critical Limb Ischemia (BEST-CLI) | NIH/NHLBI | 2014-12-01 - 2019-12-31 | Role: Principal Investigator

Research Narrative

Dr. Gasper’s clinical interests include diseases of the aorta and its major branches, aneurysms and peripheral artery disease. Dr Gasper’s research has been focused on translational projects involving vascular physiology and venous remodeling after arteriovenous fistula and lower extremity bypass surgeries. He also been active in research involving pharmacologic therapies to reduce or prevent restenosis and has been involved in pre-clinical studies as well as clinical trials using a novel endovascular approach to deliver therapy to the artery adventitia.

Publications

MOST RECENT PUBLICATIONS FROM A TOTAL OF 107
  1. A Novel Preoperative Risk Score to Identify Patients at High Risk for Non-Home Discharge After Elective Open Abdominal Aortic Aneurysm Repair.
    Ramirez JL, Sung E, Gasper WJ, Conte MS, Boitano LT, Ulloa JG, Iannuzzi JC| | PubMed
  2. Impact of the type of anesthesia on adverse events during transcarotid artery revascularization.
    Lal BK, Mayorga-Carlin M, Sahoo S, Cambria R, Raffetto JD, Gasper W, Ju M, Macdonald S, Sorkin JD| | PubMed
  3. Outcomes using inverted iliac limb bifurcate components in fenestrated/branched endografting.
    Khoury MK, Beck AW, Farber MA, Gasper W, Lee WA, Oderich G, Parodi FE, Schanzer A, Schneider D, Sweet M, Timaran CH, Eagleton MJ| | PubMed
  4. Early Opioid Use and Postoperative Delirium Following Open Abdominal Aortic Aneurysm Repair.
    Gutierrez RD, Pepic L, Lancaster EM, Gasper WJ, Hiramoto JS, Conte MS, Bongiovanni T, Iannuzzi JC| | PubMed
  5. Early and Late Aortic-Related Mortality and Rupture After Fenestrated-Branched Endovascular Aortic Repair of Thoracoabdominal Aortic Aneurysms: A Prospective Multicenter Cohort Study.
    Oderich GS, Huang Y, Harmsen WS, Tenorio ER, Schanzer A, Timaran CH, Schneider DB, Mendes BC, Eagleton MJ, Farber MA, Gasper WJ, Beck AW, Sweet MP, Lee WA, United States Aortic Research Consortium| | PubMed
  6. Postdissection aortic aneurysm sac enlargement after fenestrated and branched endovascular aortic aneurysm repair.
    Figueroa AV, Tanenbaum MT, Timaran CH, Oderich GS, Eagleton MJ, Schanzer A, Farber MA, Beck AW, Schneider DB, Gasper W, Sweet MP, Lee A, Cantor RS, Li X| | PubMed
  7. Practice patterns of antiplatelet and anticoagulant therapy after fenestrated/branched endovascular aortic repair.
    Fan EY, Schanzer A, Beck AW, Eagleton MJ, Farber MA, Gasper WJ, Lee WA, Oderich GS, Parodi FE, Schneider DB, Sweet MP, Timaran CH, Simons JP, US Aortic Research Consortium| | PubMed
  8. Preoperative risk factors for 1-year mortality in patients undergoing fenestrated endovascular aortic aneurysm repair in the US Aortic Research Consortium.
    Banks CA, Novak Z, Spangler EL, Schanzer A, Farber MA, Sweet MP, Oderich G, Timaran CH, Lee A, Schneider DB, Eagleton MJ, Gasper W, Beck AW| | PubMed
  9. Prospective randomized pilot trial comparing prophylactic and therapeutic cerebrospinal fluid drainage during complex endovascular thoracoabdominal aortic aneurysm repair.
    Blakeslee-Carter J, Novak Z, Jansen JO, Schanzer A, Eagleton MJ, Farber MA, Gasper W, Lee WA, Oderich GS, Timaran CH, Schneider DB, Sweet MP, Beck AW| | PubMed
  10. Relevance of BEST-CLI trial endpoints in a tertiary care limb preservation program.
    Liu IH, El Khoury R, Hiramoto JS, Gasper WJ, Schneider PA, Vartanian SM, Conte MS| | PubMed
  11. Secondary interventions following open vs endovascular revascularization for chronic limb threatening ischemia in the BEST-CLI trial.
    Conte MS, Azene E, Doros G, Gasper WJ, Hamza T, Kashyap VS, Guzman R, Mena-Hurtado C, Menard MT, Rosenfield K, Rowe VL, Strong M, Farber A| | PubMed
  12. Predictors of amputation-free survival and wound healing after infrainguinal bypass with alternative conduits.
    Matthay ZA, Pace WA, Smith EJ, Gutierrez RD, Gasper WJ, Hiramoto JS, Reilly LM, Conte MS, Iannuzzi JC| | PubMed
  13. Risk factors and associated outcomes of postoperative delirium after open abdominal aortic aneurysm repair.
    Gutierrez RD, Smith EJT, Matthay ZA, Gasper WJ, Hiramoto JS, Conte MS, Finlayson E, Walter LC, Iannuzzi JC| | PubMed
  14. Descending thoracic aortic mural ulceration is associated with postoperative spinal cord ischemia after branched endovascular aortic aneurysm repair.
    Huynh C, Liu I, Sommer A, Menke L, Reilly L, Gasper W, Hiramoto J| | PubMed
  15. Measurement of Abdominal Aortic Aneurysm Strain Using MR Deformable Image Registration: Accuracy and Relationship to Recent Aneurysm Progression.
    Dong H, Leach JR, Kao E, Zhou A, Chitiboi T, Zhu C, Ballweber M, Jiang F, Lee YJ, Iannuzzi J, Gasper W, Saloner D, Hope MD, Mitsouras D| | PubMed
  16. Development and Validation of a Novel Preoperative Risk Score to Identify Patients at Risk for Nonhome Discharge after Elective Endovascular Aortic Aneurysm Repair (EVAR).
    Ramirez JL, Sung E, Jaramillo E, Gasper WJ, Conte MS, Boitano L, Iannuzzi JC| | PubMed
  17. Decreasing prevalence of centers meeting the Society for Vascular Surgery abdominal aortic aneurysm guidelines in the United States.
    Ramirez JL, Matthay ZA, Lancaster E, Smith EJT, Gasper WJ, Zarkowsky DS, Doyle AJ, Patel VI, Schanzer A, Conte MS, Iannuzzi JC| | PubMed
  18. Outcomes of Elective and Non-elective Fenestrated-branched Endovascular Aortic Repair for Treatment of Thoracoabdominal Aortic Aneurysms.
    Dias-Neto M, Vacirca A, Huang Y, Baghbani-Oskouei A, Jakimowicz T, Mendes BC, Kolbel T, Sobocinski J, Bertoglio L, Mees B, Gargiulo M, Dias N, Schanzer A, Gasper W, Beck AW, Farber MA, Mani K, Timaran C, Schneider DB, Pedro LM, Tsilimparis N, Haulon S, Sweet MP, Ferreira E, Eagleton M, Yeung KK, Khashram M, Jama K, Panuccio G, Rohlffs F, Mesnard T, Chiesa R, Kahlberg A, Schurink GW, Lemmens C, Gallitto E, Faggioli G, Karelis A, Parodi E, Gomes V, Wanhainen A, Habib M, Colon JP, Pavarino F, Baig MS, Gouveia E Melo REC, Crawford S, Zettervall SL, Garcia R, Ribeiro T, Alves G, Gonçalves FB, Kappe KO, Mariko van Knippenberg SE, Tran BL, Gormley S, Oderich GS, International Multicenter Aortic Research Group| | PubMed
  19. Update of T-branch use from the US Aortic Research Consortium.
    Khoury MK, Lancaster E, Eagleton MJ, Gasper WJ| | PubMed
  20. Severity of acute kidney injury is associated with decreased survival after fenestrated and branched endovascular aortic aneurysm repair.
    Finnesgard EJ, Beck AW, Eagleton MJ, Farber MA, Gasper WJ, Lee WA, Oderich GS, Schneider DB, Sweet MP, Timaran CH, Simons JP, Schanzer A, United States Aortic Research Consortium| | PubMed
  21. Mid-term Renal and Mesenteric Artery Outcomes During Fenestrated and Branched Endovascular Aortic Repair for Complex Abdominal and Thoracoabdominal Aortic Aneurysms in the United States Aortic Research Consortium.
    Tenorio ER, Schanzer A, Timaran CH, Schneider DB, Mendes BC, Eagleton MJ, Farber MA, Parodi FE, Gasper WJ, Beck AW, Sweet MP, Huang Y, Oderich GS, U.S. Fenestrated and Branched Aortic Research Consortium| | PubMed
  22. Predictors and outcomes of spinal cord injury following complex branched/fenestrated endovascular aortic repair in the US Aortic Research Consortium.
    Aucoin VJ, Motyl CM, Novak Z, Eagleton MJ, Farber MA, Gasper W, Oderich GS, Mendes B, Schanzer A, Tenorio E, Timaran CH, Schneider DB, Sweet MP, Zettervall SL, Beck AW, U.S. Aortic Research Consortium| | PubMed
  23. Effect of bridging stent graft selection for directional branches on target artery outcomes of fenestrated-branched endovascular aortic repair in the United States Aortic Research Consortium.
    Tenorio ER, Schanzer A, Timaran CH, Schneider DB, Mendes BC, Eagleton MJ, Farber MA, Parodi FE, Gasper WJ, Beck AW, Sweet MP, Zettervall SL, Huang Y, Oderich GS, U.S. Fenestrated and Branched Aortic Research Consortium| | PubMed
  24. Dynamic Contrast-Enhanced MRI in Abdominal Aortic Aneurysms as a Potential Marker for Disease Progression.
    Zhou A, Leach JR, Zhu C, Dong H, Jiang F, Lee YJ, Iannuzzi J, Gasper W, Saloner D, Hope MD, Mitsouras D| | PubMed
  25. Comparison of single- and multistage strategies during fenestrated-branched endovascular aortic repair of thoracoabdominal aortic aneurysms.
    Dias-Neto M, Tenorio ER, Huang Y, Jakimowicz T, Mendes BC, Kölbel T, Sobocinski J, Bertoglio L, Mees B, Gargiulo M, Dias N, Schanzer A, Gasper W, Beck AW, Farber MA, Mani K, Timaran C, Schneider DB, Pedro LM, Tsilimparis N, Haulon S, Sweet M, Ferreira E, Eagleton M, Yeung KK, Khashram M, Vacirca A, Lima GB, Baghbani-Oskouei A, Jama K, Panuccio G, Rohlffs F, Chiesa R, Schurink GW, Lemmens C, Gallitto E, Faggioli G, Karelis A, Parodi E, Gomes V, Wanhainen A, Dean A, Colon JP, Pavarino F, E Melo RG, Crawford S, Garcia R, Ribeiro T, Kappe KO, van Knippenberg SEM, Tran BL, Gormley S, Oderich GS, International Aortic Research Consortium| | PubMed
  26. Cognitive Impairment is Common in a Veterans Affairs Population with Peripheral Arterial Disease.
    Smith EJT, Gasper WJ, Schneider PA, Finlayson E, Walter LC, Covinsky KE, Conte MS, Iannuzzi JC| | PubMed
  27. Open revascularization approach is associated with healing and ambulation after transmetatarsal amputation in patients with chronic limb threatening ischemia.
    Gomez-Sanchez C, Werlin E, Sorrentino T, El Khoury R, Lancaster E, Parks C, Goodman B, Dini M, Iannuzzi J, Reyzelman A, Conte MS, Gasper W| | PubMed
  28. Presenting limb severity is associated with long-term outcomes after infrainguinal revascularization for chronic limb-threatening ischemia.
    Liu IH, El Khoury R, Wu B, Gasper WJ, Schneider PA, Hiramoto JS, Vartanian SM, Conte MS| | PubMed
  29. Expression of Concern: Association of tetraspanin CD9 with transmembrane TGFα confers alterations in cell-surface presentation of TGFα and cytoskeletal organization.
    Imhof I, Gasper WJ, Derynck R| | PubMed
  30. Surgery or Endovascular Therapy for Chronic Limb-Threatening Ischemia.
    Farber A, Menard MT, Conte MS, Kaufman JA, Powell RJ, Choudhry NK, Hamza TH, Assmann SF, Creager MA, Cziraky MJ, Dake MD, Jaff MR, Reid D, Siami FS, Sopko G, White CJ, van Over M, Strong MB, Villarreal MF, McKean M, Azene E, Azarbal A, Barleben A, Chew DK, Clavijo LC, Douville Y, Findeiss L, Garg N, Gasper W, Giles KA, Goodney PP, Hawkins BM, Herman CR, Kalish JA, Koopmann MC, Laskowski IA, Mena-Hurtado C, Motaganahalli R, Rowe VL, Schanzer A, Schneider PA, Siracuse JJ, Venermo M, Rosenfield K, BEST-CLI Investigators| | PubMed
  31. Racial and ethnic disparities in major adverse limb events persist for chronic limb threatening ischemia despite presenting limb threat severity after peripheral vascular intervention.
    Jaramillo EA, Smith EJT, Matthay ZA, Sanders KM, Hiramoto JS, Gasper WJ, Conte MS, Iannuzzi JC| | PubMed
  32. Comparison of upper extremity and transfemoral access for fenestrated-branched endovascular aortic repair.
    Chamseddin K, Timaran CH, Oderich GS, Tenorio ER, Farber MA, Parodi FE, Schneider DB, Schanzer A, Beck AW, Sweet MP, Zettervall SL, Mendes B, Eagleton MJ, Gasper WJ, U.S. Aortic Research Consortium| | PubMed
  33. Clinical Predictors and Outcomes Associated with Postoperative Delirium Following Infrainguinal Bypass Surgery.
    Gutierrez RD, Matthay ZA, Smith EJT, Linderman K, Gasper WJ, Hiramoto JS, Conte MS, Iannuzzi JC| | PubMed
  34. Correction to: The Resolution of Abdominal Pain: an Ominous Sign of Mesenteric Ischemia.
    Strait A, Gasper W, Dhaliwal G| | PubMed
  35. Eptifibatide bridging therapy for staged carotid artery stenting and cardiac surgery: Safety and feasibility.
    Caton MT, Narsinh KH, Baker A, Amans MR, Hetts SW, Rapp JH, Ianuzzi JC, Tseng E, Gasper WJ, Cooke DL| | PubMed
  36. Secondary interventions after fenestrated/branched aneurysm repairs are common and nondetrimental to long-term survival.
    Zettervall SL, Tenorio ER, Schanzer A, Oderich GS, Timaran CH, Schneider DB, Eagleton M, Farber MA, Gasper WJ, Beck AW, Sweet MP, U.S. Fenestrated and Branched Aortic Research Consortium| | PubMed
  37. Risk factors for venous thromboembolism after vascular surgery and implications for chemoprophylaxis strategies.
    Matthay ZA, Flanagan CP, Sanders K, Smith EJ, Lancaster EM, Gasper WJ, Kornblith LZ, Hiramoto JS, Conte MS, Iannuzzi JC| | PubMed
  38. High glucose macrophage exosomes enhance atherosclerosis by driving cellular proliferation & hematopoiesis.
    Bouchareychas L, Duong P, Phu TA, Alsop E, Meechoovet B, Reiman R, Ng M, Yamamoto R, Nakauchi H, Gasper WJ, Van Keuren-Jensen K, Raffai RL| | PubMed
  39. Understanding value and patient complexity among common inpatient vascular surgery procedures.
    Ramirez JL, Lopez J, Sanders K, Schneider PA, Gasper WJ, Conte MS, Sosa JA, Iannuzzi JC| | PubMed
  40. Contemporary Experience with Paravisceral Aortic Aneurysm (PVAAA) Repair in a Tertiary Center.
    Zarkowsky DS, Inman JT, Sorrentino TA, Hiramoto JS, Vartanian SM, Eichler CM, Reilly LM, Gasper WJ, Conte MS| | PubMed
  41. Depression Predicts Non-Home Discharge After Abdominal Aortic Aneurysm Repair.
    Ramirez JL, Zarkowsky DS, Ramirez FD, Gasper WJ, Cohen BE, Conte MS, Grenon SM, Iannuzzi JC| | PubMed
  42. Patients with depression are less likely to go home after critical limb revascularization.
    Ramirez JL, Zahner GJ, Arya S, Grenon SM, Gasper WJ, Sosa JA, Conte MS, Iannuzzi JC| | PubMed
  43. The Resolution of Abdominal Pain: an Ominous Sign of Mesenteric Ischemia.
    Strait A, Gasper W, Dhaliwal G| | PubMed
  44. A novel preoperative risk score for nonhome discharge after elective thoracic endovascular aortic repair.
    Ramirez JL, Zarkowsky DS, Boitano LT, Conrad MF, Arya S, Gasper WJ, Conte MS, Iannuzzi JC| | PubMed
  45. Impact of the coronavirus disease 2019 pandemic on an academic vascular practice and a multidisciplinary limb preservation program.
    Lancaster EM, Wu B, Iannuzzi J, Oskowitz A, Gasper W, Vartanian S, Wick E, Hiramoto J, Eichler C, Lobo E, Reyzelman A, Reilly L, Sosa JA, Conte MS| | PubMed
  46. Living in a Food Desert is Associated with 30-day Readmission after Revascularization for Chronic Limb-Threatening Ischemia.
    Smith EJT, Ramirez JL, Wu B, Zarkowsky DS, Gasper WJ, Finlayson E, Conte MS, Iannuzzi JC| | PubMed
  47. Increased Reintervention After Infrainguinal Revascularization for Chronic Limb-Threatening Ischemia in Women.
    Wu B, Lancaster EM, Ramirez JL, Zarkowsky DS, Reyzelman AM, Gasper WJ, Conte MS, Hiramoto JS| | PubMed
  48. Patient complexity by surgical specialty does not correlate with work relative value units.
    Ramirez JL, Gasper WJ, Seib CD, Finlayson E, Conte MS, Sosa JA, Iannuzzi JC| | PubMed
  49. Quantitative measurement of atheroma burden: reproducibility in serial studies of atherosclerotic femoral arteries.
    Wang Y, Liu X, Haraldsson H, Zhu C, Ballweber M, Gasper W, Hatsukami T, Saloner D| | PubMed
  50. Antegrade common femoral artery closure device use is associated with decreased complications.
    Ramirez JL, Zarkowsky DS, Sorrentino TA, Hicks CW, Vartanian SM, Gasper WJ, Conte MS, Iannuzzi JC| | PubMed
  51. Growth of common iliac artery aneurysms coexisting with abdominal aortic aneurysms: associated factors and potential role of intraluminal thrombus.
    Wang Y, Zhu C, Leach J, Gasper W, Saloner D, Hope M| | PubMed
  52. Intraluminal Thrombus Predicts Rapid Growth of Abdominal Aortic Aneurysms.
    Zhu C, Leach JR, Wang Y, Gasper W, Saloner D, Hope MD| | PubMed
  53. Acute Insulin Resistance and Rapid Alterations in Neuronal Derived Blood Exosome Concentration After Branched Endovascular Aortic Aneurysm Repair.
    Hiramoto JS, Elahi FM, Gasper WJ, Reilly LM, Chuter TA, Goetzl EJ| | PubMed
  54. Strict Control of Blood Glucose With an Intravenous Insulin Infusion Decreases the Risk of Post-operative Lower Extremity Weakness After Complex Endovascular Aortic Aneurysm Repair.
    Hiramoto JS, Hoffman M, Gasper W, Reilly L, Chuter T| | PubMed
  55. Multibranched endovascular aortic aneurysm repair in patients with and without chronic aortic dissections.
    Werlin EC, Kaushik S, Gasper WJ, Hoffman M, Reilly LM, Chuter TA, Hiramoto JS| | PubMed
  56. Peripheral Artery Disease Is Associated with a Deficiency of Erythrocyte Membrane n-3 Polyunsaturated Fatty Acids.
    Ramirez JL, Zahner GJ, Spaulding KA, Khetani SA, Hills NK, Gasper WJ, Harris WS, Cohen BE, Grenon SM| | PubMed
  57. Fish Oil Increases Specialized Pro-resolving Lipid Mediators in PAD (The OMEGA-PAD II Trial).
    Ramirez JL, Gasper WJ, Khetani SA, Zahner GJ, Hills NK, Mitchell PT, Sansbury BE, Conte MS, Spite M, Grenon SM| | PubMed
  58. Leptinemia is Associated With Peripheral Artery Disease.
    Zahner GJ, Ramirez JL, Spaulding KA, Khetani SA, Gasper WJ, Grunfeld C, Hills NK, Schafer AL, Grenon SM| | PubMed
  59. Long-term durability of multibranched endovascular repair of thoracoabdominal and pararenal aortic aneurysms.
    Walker J, Kaushik S, Hoffman M, Gasper W, Hiramoto J, Reilly L, Chuter T| | PubMed
  60. Radial Artery Tonometry is Associated With Major Adverse Cardiac Events in Patients With Peripheral Artery Disease.
    Ramirez JL, Spaulding KA, Zahner GJ, Khetani SA, Schaller MS, Gasper WJ, Hills NK, Marlene Grenon S| | PubMed
  61. Serum resistin is associated with impaired endothelial function and a higher rate of adverse cardiac events in patients with peripheral artery disease.
    Ramirez JL, Khetani SA, Zahner GJ, Spaulding KA, Schaller MS, Gasper WJ, Hills NK, Schafer AL, Grenon SM| | PubMed
  62. Depression severity is associated with increased inflammation in veterans with peripheral artery disease.
    Hernandez NV, Ramirez JL, Khetani SA, Spaulding KA, Gasper WJ, Hiramoto J, Lindqvist D, Wolkowitz OM, Hills NK, Grenon SM, Zahner GJ| | PubMed
  63. Frailty Is Associated with an Increased Risk of Major Adverse Cardiac Events in Patients with Stable Claudication.
    Schaller MS, Ramirez JL, Gasper WJ, Zahner GJ, Hills NK, Grenon SM| | PubMed
  64. The impact of prior aortic surgery on outcomes after multibranched endovascular aortic aneurysm repair.
    Kaushik S, Gasper WJ, Ramanan B, Vartanian SM, Reilly LM, Chuter TAM, Hiramoto JS| | PubMed
  65. Characterizing the relationship between flow-mediated vasodilation and radial artery tonometry in peripheral artery disease.
    Zahner GJ, Spaulding KA, Ramirez JL, Schaller MS, Walker SC, Hills NK, Gasper WJ, Grenon SM| | PubMed
  66. Determinants of midterm functional outcomes, wound healing, and resources used in a hospital-based limb preservation program.
    Ramanan B, Ahmed A, Wu B, Causey MW, Gasper WJ, Vartanian SM, Reyzelman AM, Hiramoto JS, Conte MS| | PubMed
  67. Association between arterial stiffness and peripheral artery disease as measured by radial artery tonometry.
    Zahner GJ, Gruendl MA, Spaulding KA, Schaller MS, Hills NK, Gasper WJ, Grenon SM| | PubMed
  68. Relationship between the omega-3 index and specialized pro-resolving lipid mediators in patients with peripheral arterial disease taking fish oil supplements.
    Schaller MS, Zahner GJ, Gasper WJ, Harris WS, Conte MS, Hills NK, Grenon SM| | PubMed
  69. Medical therapy and intervention do not improve uncomplicated isolated mesenteric artery dissection outcomes over observation alone.
    Loeffler JW, Obara H, Fujimura N, Bove P, Newton DH, Zettervall SL, van Petersen AS, Geelkerken RH, Charlton-Ouw KM, Shalhub S, Singh N, Roussel A, Glebova NO, Harlander-Locke MP, Gasper WJ, Humphries MD, Lawrence PF| | PubMed
  70. Lower extremity weakness is associated with elevated blood and cerebrospinal fluid glucose levels following multibranched endovascular aortic aneurysm repair.
    Hiramoto JS, Fernandez C, Gasper W, Vartanian S, Reilly L, Chuter T| | PubMed
  71. Predictors of change in omega-3 index with fish oil supplementation in peripheral artery disease.
    Drudi LM, Schaller MS, Hiramoto J, Gasper W, Harris WS, Hills NK, Grenon SM| | PubMed
  72. Society for Vascular Surgery limb stage and patient risk correlate with outcomes in an amputation prevention program.
    Causey MW, Ahmed A, Wu B, Gasper WJ, Reyzelman A, Vartanian SM, Hiramoto JS, Conte MS| | PubMed
  73. Posttraumatic Stress Disorder Is Associated With Worse Endothelial Function Among Veterans.
    Grenon SM, Owens CD, Alley H, Perez S, Whooley MA, Neylan TC, Aschbacher K, Gasper WJ, Hilton JF, Cohen BE| | PubMed
  74. Low-profile versus standard-profile multibranched thoracoabdominal aortic stent grafts.
    Ramanan B, Fernandez CC, Sobel JD, Gasper WJ, Vartanian SM, Reilly LM, Chuter TA, Hiramoto JS| | PubMed
  75. Standard off-the-shelf versus custom-made multibranched thoracoabdominal aortic stent grafts.
    Fernandez CC, Sobel JD, Gasper WJ, Vartanian SM, Reilly LM, Chuter TA, Hiramoto JS| | PubMed
  76. Isotropic 3D black blood MRI of abdominal aortic aneurysm wall and intraluminal thrombus.
    Zhu C, Haraldsson H, Faraji F, Owens C, Gasper W, Ahn S, Liu J, Laub G, Hope MD, Saloner D| | PubMed
  77. Vascular inflammation in a growing iliac artery aneurysm.
    Hope MD, Gasper WJ, Rapp J, Owens CD, Haraldsson H, Saloner D| | PubMed
  78. Endovascular rescue after inadvertent false lumen stent graft implantation.
    Han SM, Gasper WJ, Chuter TA| | PubMed
  79. Lower extremity weakness after endovascular aneurysm repair with multibranched thoracoabdominal stent grafts.
    Sobel JD, Vartanian SM, Gasper WJ, Hiramoto JS, Chuter TA, Reilly LM| | PubMed
  80. Ultrasound assessment of endothelial-dependent flow-mediated vasodilation of the brachial artery in clinical research.
    Alley H, Owens CD, Gasper WJ, Grenon SM| | PubMed
  81. Relationship between kidney disease and endothelial function in peripheral artery disease.
    Chong KC, Owens CD, Park M, Alley HF, Boscardin WJ, Conte MS, Gasper WJ, Grenon SM| | PubMed
  82. Ferumoxytol-enhanced magnetic resonance angiography is a feasible method for the clinical evaluation of lower extremity arterial disease.
    Walker JP, Nosova E, Sigovan M, Rapp J, Grenon MS, Owens CD, Gasper WJ, Saloner DA| | PubMed
  83. Vitamin D deficiency is associated with mortality and adverse vascular access outcomes in patients with end-stage renal disease.
    Walker JP, Hiramoto JS, Gasper WJ, Auyang P, Conte MS, Rapp JH, Lovett DH, Owens CD| | PubMed
  84. Safety and feasibility of adjunctive dexamethasone infusion into the adventitia of the femoropopliteal artery following endovascular revascularization.
    Owens CD, Gasper WJ, Walker JP, Alley HF, Conte MS, Grenon SM| | PubMed
  85. Walking disability in patients with peripheral artery disease is associated with arterial endothelial function.
    Grenon SM, Chong K, Alley H, Nosova E, Gasper W, Hiramoto J, Boscardin WJ, Owens CD| | PubMed
  86. Adventitial nab-rapamycin injection reduces porcine femoral artery luminal stenosis induced by balloon angioplasty via inhibition of medial proliferation and adventitial inflammation.
    Gasper WJ, Jimenez CA, Walker J, Conte MS, Seward K, Owens CD| | PubMed
  87. Vein graft failure.
    Owens CD, Gasper WJ, Rahman AS, Conte MS| | PubMed
  88. Assessing the anatomic applicability of the multibranched endovascular repair of thoracoabdominal aortic aneurysm technique.
    Gasper WJ, Reilly LM, Rapp JH, Grenon SM, Hiramoto JS, Sobel JD, Chuter TA| | PubMed
  89. A single nucleotide polymorphism in the p27(Kip1) gene is associated with primary patency of lower extremity vein bypass grafts.
    Conte MS, Owens CD, Belkin M, Creager MA, Edwards KL, Gasper WJ, Kenagy RD, LeBoeuf RC, Sobel M, Clowes A| | PubMed
  90. Vascular remodeling in autogenous arterio-venous fistulas by MRI and CFD.
    Sigovan M, Rayz V, Gasper W, Alley HF, Owens CD, Saloner D| | PubMed
  91. Thirty-day vein remodeling is predictive of midterm graft patency after lower extremity bypass.
    Gasper WJ, Owens CD, Kim JM, Hills N, Belkin M, Creager MA, Conte MS| | PubMed
  92. USPIO-enhanced MR angiography of arteriovenous fistulas in patients with renal failure.
    Sigovan M, Gasper W, Alley HF, Owens CD, Saloner D| | PubMed
  93. An integrated biochemical prediction model of all-cause mortality in patients undergoing lower extremity bypass surgery for advanced peripheral artery disease.
    Owens CD, Kim JM, Hevelone ND, Gasper WJ, Belkin M, Creager MA, Conte MS| | PubMed
  94. Management of infrapopliteal peripheral arterial occlusive disease.
    Gasper WJ, Runge SJ, Owens CD| | PubMed
  95. Associations of endothelial dysfunction and arterial stiffness with intradialytic hypotension and hypertension.
    Dubin R, Owens C, Gasper W, Ganz P, Johansen K| | PubMed
  96. Assessing drug elution technologies in the superficial femoral artery.
    Owens CD, Gasper WJ, Conte MS| | PubMed
  97. Excellent outcomes of laparoscopic esophagomyotomy for achalasia in patients older than 60 years of age.
    Roll GR, Ma S, Gasper WJ, Patti M, Way LW, Carter J| | PubMed
  98. Has recognition of the relationship between mortality rates and hospital volume for major cancer surgery in California made a difference?: A follow-up analysis of another decade.
    Gasper WJ, Glidden DV, Jin C, Way LW, Patti MG| | PubMed
  99. Gastroesophageal reflux disease and connective tissue disorders: pathophysiology and implications for treatment.
    Patti MG, Gasper WJ, Fisichella PM, Nipomnick I, Palazzo F| | PubMed
  100. Predicting strangulated small bowel obstruction: an old problem revisited.
    Jancelewicz T, Vu LT, Shawo AE, Yeh B, Gasper WJ, Harris HW| | PubMed
  101. Association of tetraspanin CD9 with transmembrane TGF{alpha} confers alterations in cell-surface presentation of TGF{alpha} and cytoskeletal organization.
    Imhof I, Gasper WJ, Derynck R| | PubMed
  102. Lung transplantation in patients with connective tissue disorders and esophageal dysmotility.
    Gasper WJ, Sweet MP, Golden JA, Hoopes C, Leard LE, Kleinhenz ME, Hays SR, Patti MG| | PubMed
  103. Palliation of thoracic malignancies.
    Gasper WJ, Jamshidi R, Theodore PR| | PubMed
  104. The outcome of laparoscopic Heller myotomy for achalasia is not influenced by the degree of esophageal dilatation.
    Sweet MP, Nipomnick I, Gasper WJ, Bagatelos K, Ostroff JW, Fisichella PM, Way LW, Patti MG| | PubMed
  105. Antireflux surgery for patients with end-stage lung disease before and after lung transplantation.
    Gasper WJ, Sweet MP, Hoopes C, Leard LE, Kleinhenz ME, Hays SR, Golden JA, Patti MG| | PubMed
  106. Angiogenic inhibition mediated by a DNAzyme that targets vascular endothelial growth factor receptor 2.
    Zhang L, Gasper WJ, Stass SA, Ioffe OB, Davis MA, Mixson AJ| | PubMed
  107. Targeting tumor angiogenesis with gene therapy.
    Chen QR, Zhang L, Gasper W, Mixson AJ| | PubMed