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1دورية أكاديمية
المؤلفون: Sanders AP; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Swerdlow NJ; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Yadavalli SD; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Marcaccio CL; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Stangenberg L; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Schermerhorn ML; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2024 Jun; Vol. 79 (6), pp. 1287-1294.e1. Date of Electronic Publication: 2024 Jan 05.
نوع المنشور: Journal Article; Comparative Study
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Endovascular Procedures*/adverse effects , Endovascular Procedures*/instrumentation , Endovascular Procedures*/mortality , Blood Vessel Prosthesis* , Blood Vessel Prosthesis Implantation*/adverse effects , Blood Vessel Prosthesis Implantation*/instrumentation , Blood Vessel Prosthesis Implantation*/mortality , Prosthesis Design* , Reoperation*, Humans ; Retrospective Studies ; Male ; Female ; Aged ; Time Factors ; Aged, 80 and over ; Risk Factors ; Aortic Aneurysm, Abdominal/surgery ; Aortic Aneurysm, Abdominal/mortality ; Aortic Aneurysm, Abdominal/diagnostic imaging ; Aortic Aneurysm, Abdominal/physiopathology ; Stents ; Postoperative Complications/etiology ; Postoperative Complications/surgery ; Treatment Failure ; Treatment Outcome ; Endovascular Aneurysm Repair
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2دورية أكاديمية
المؤلفون: Sanders AP; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Swerdlow NJ; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Department of Surgery, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA., Jabbour G; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Schermerhorn ML; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2024 Apr; Vol. 79 (4), pp. 954-961. Date of Electronic Publication: 2023 Nov 04.
نوع المنشور: Journal Article
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Endovascular Procedures* , Radiation Exposure*/adverse effects , Radiation Exposure*/prevention & control , Blood Vessel Prosthesis Implantation*, Humans ; Prospective Studies ; Aortography/methods ; Treatment Outcome ; Technology ; Radiation Dosage ; Fluoroscopy ; Retrospective Studies
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3دورية أكاديمية
المؤلفون: Varkevisser RRB; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.; Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands., Patel PB; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA., Swerdlow NJ; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA., Li C; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA., Rastogi V; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA., Verhagen HJM; Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands., Lyden SP; Department of Vascular Surgery, Cleveland Clinic, Cleveland, OH, USA., Schermerhorn ML; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
المصدر: Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists [J Endovasc Ther] 2023 Aug 30, pp. 15266028231195771. Date of Electronic Publication: 2023 Aug 30.
نوع المنشور: Journal Article
بيانات الدورية: Publisher: Sage Publications Country of Publication: United States NLM ID: 100896915 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1545-1550 (Electronic) Linking ISSN: 15266028 NLM ISO Abbreviation: J Endovasc Ther Subsets: MEDLINE
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4دورية أكاديمية
المؤلفون: Patel PB; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA; Department of General Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ., Marcaccio CL; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Swerdlow NJ; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., O'Donnell TFX; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA; Division of Vascular Surgery and Endovascular Interventions, Columbia University Medical Center, New York, NY., Rastogi V; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Marino R; Boston University School of Medicine, Boston, MA., Patel VI; Division of Vascular Surgery and Endovascular Interventions, Columbia University Medical Center, New York, NY., Zettervall SL; Division of Vascular Surgery, University of Washington Medicine, Seattle, WA., Lindsay T; Department of Vascular Surgery, University of Toronto, Toronto, ON, Canada., Schermerhorn ML; The Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2023 Aug; Vol. 78 (2), pp. 269-277.e3. Date of Electronic Publication: 2023 Apr 11.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Aortic Aneurysm, Thoracoabdominal* , Blood Vessel Prosthesis Implantation*/adverse effects , Endovascular Procedures*/adverse effects , Stroke*/etiology , Aortic Aneurysm, Thoracic*/diagnostic imaging , Aortic Aneurysm, Thoracic*/surgery , Aortic Aneurysm, Thoracic*/etiology , Aortic Aneurysm, Abdominal*/diagnostic imaging , Aortic Aneurysm, Abdominal*/surgery , Aortic Aneurysm, Abdominal*/etiology, Humans ; Endovascular Aneurysm Repair ; Risk Factors ; Postoperative Complications ; Treatment Outcome ; Retrospective Studies
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5دورية أكاديمية
المؤلفون: O'Donnell TFX; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA; Division of Cardiac, Thoracic, and Vascular Surgery, New York-Presbyterian/Columbia University Irving Medical Centre/Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA., Patel PB; Division of General Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA., Marcaccio CL; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA., Dansey KD; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA., Swerdlow NJ; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA., Rastogi V; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA., Patel VI; Division of Cardiac, Thoracic, and Vascular Surgery, New York-Presbyterian/Columbia University Irving Medical Centre/Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA., Beck AW; Division of Vascular Surgery and Endovascular Therapy, University of Alabama at Birmingham, Birmingham, AL, USA., Zettervall SL; Division of Vascular and Endovascular Surgery, University of Washington, Seattle, WA, USA., Schermerhorn ML; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, USA.
المصدر: European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery [Eur J Vasc Endovasc Surg] 2023 Jul; Vol. 66 (1), pp. 58-66. Date of Electronic Publication: 2023 Apr 21.
نوع المنشور: Journal Article
بيانات الدورية: Publisher: Elsevier Country of Publication: England NLM ID: 9512728 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1532-2165 (Electronic) Linking ISSN: 10785884 NLM ISO Abbreviation: Eur J Vasc Endovasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Aortic Aneurysm, Thoracic*/diagnostic imaging , Aortic Aneurysm, Thoracic*/surgery , Aortic Aneurysm, Thoracic*/etiology , Blood Vessel Prosthesis Implantation*/adverse effects , Endovascular Procedures*/adverse effects , Aortic Aneurysm, Abdominal*/surgery , Spinal Cord Ischemia*/etiology, Humans ; Aged ; United States ; Blood Vessel Prosthesis ; Treatment Outcome ; Risk Factors ; Medicare
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6دورية أكاديمية
المؤلفون: Varkevisser RRB; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Department of Vascular Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands., Carvalho Mota MT; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Department of Vascular Surgery, Amsterdam University Medical Centers (Amsterdam UMC), VUMC, Amsterdam, the Netherlands., Swerdlow NJ; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA., Stone DH; Division of Vascular and Endovascular Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH., Scali ST; Division of Vascular Surgery and Endovascular Therapy, University of Florida Health, Gainesville, FL., Blankensteijn JD; Department of Vascular Surgery, Amsterdam University Medical Centers (Amsterdam UMC), VUMC, Amsterdam, the Netherlands., Verhagen HJM; Department of Vascular Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands., Schermerhorn ML; Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2022 Oct; Vol. 76 (4), pp. 899-907.e3. Date of Electronic Publication: 2022 Mar 31.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Aortic Aneurysm, Abdominal*/complications , Aortic Aneurysm, Abdominal*/diagnostic imaging , Aortic Aneurysm, Abdominal*/surgery , Blood Vessel Prosthesis Implantation*/adverse effects , Endovascular Procedures*/adverse effects, Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Retrospective Studies ; Risk Factors ; Time Factors ; Treatment Outcome
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7دورية أكاديمية
المؤلفون: De Guerre LEVM; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA; Department of Vascular Surgery, University Medical Center, Utrecht, the Netherlands., O'Donnell TFX; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Varkevisser RRB; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Swerdlow NJ; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Li C; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Dansey K; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., van Herwaarden JA; Department of Vascular Surgery, University Medical Center, Utrecht, the Netherlands., Schermerhorn ML; Divisions of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA., Patel VI; Division of Vascular and Endovascular Surgery, New York Presbyterian/Columbia University Irving Medical Center/Columbia University Vagelos College of Physicians & Surgeons, New York, NY. Electronic address: vp2385@cumc.columbia.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2022 Sep; Vol. 76 (3), pp. 690-698.e2. Date of Electronic Publication: 2022 Mar 09.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Aortic Aneurysm, Abdominal*/diagnostic imaging , Aortic Aneurysm, Abdominal*/surgery , Blood Vessel Prosthesis Implantation* , Endovascular Procedures*, Aged ; Blood Vessel Prosthesis ; Endoleak/surgery ; Female ; Humans ; Retrospective Studies ; Risk Factors ; Time Factors ; Treatment Outcome
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8دورية أكاديمية
المؤلفون: Allar BG; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Swerdlow NJ; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., de Guerre LEVM; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Dansey KD; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Li C; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Wang GJ; Division of Vascular Surgery and Endovascular Therapy, Hospital of the University of Pennsylvania, Philadelphia, Pa., Patel VI; Division of Cardiac, Thoracic, and Vascular Surgery, New York-Presbyterian/Columbia University Medical Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY., Schermerhorn ML; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2021 Dec; Vol. 74 (6), pp. 1996-2005. Date of Electronic Publication: 2021 Jun 26.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Blood Vessel Prosthesis Implantation*/adverse effects , Blood Vessel Prosthesis Implantation*/mortality , Endovascular Procedures*/adverse effects , Endovascular Procedures*/mortality, Aorta, Thoracic/*surgery , Aortic Diseases/*surgery , Hydroxymethylglutaryl-CoA Reductase Inhibitors/*therapeutic use, Aged ; Aged, 80 and over ; Aorta, Thoracic/diagnostic imaging ; Aortic Diseases/diagnostic imaging ; Aortic Diseases/mortality ; Female ; Humans ; Male ; Middle Aged ; Postoperative Complications/etiology ; Protective Factors ; Registries ; Retrospective Studies ; Risk Assessment ; Risk Factors ; Time Factors ; Treatment Outcome
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9دورية أكاديمية
المؤلفون: Dansey KD; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., Varkevisser RRB; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., Swerdlow NJ; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., Li C; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., de Guerre LEVM; Department of Vascular Surgery, University Medical Center, Utrecht, the Netherlands., Liang P; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., Marcaccio C; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., O'Donnell TFX; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston., Carroll BJ; Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston., Schermerhorn ML; Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Boston. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2021 Aug; Vol. 74 (2), pp. 414-424. Date of Electronic Publication: 2021 Feb 14.
نوع المنشور: Journal Article
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Aortic Aneurysm, Abdominal/*surgery , Aortic Rupture/*surgery , Blood Vessel Prosthesis Implantation/*trends , Diagnostic Screening Programs/*trends , Eligibility Determination/*trends, Aged ; Aortic Aneurysm, Abdominal/diagnostic imaging ; Aortic Aneurysm, Abdominal/mortality ; Aortic Rupture/diagnostic imaging ; Aortic Rupture/mortality ; Blood Vessel Prosthesis Implantation/adverse effects ; Blood Vessel Prosthesis Implantation/mortality ; Clinical Decision-Making ; Databases, Factual ; Female ; Hospital Mortality/trends ; Humans ; Male ; Patient Admission/trends ; Predictive Value of Tests ; Retrospective Studies ; Risk Assessment ; Risk Factors ; Time Factors ; Treatment Outcome ; United States/epidemiology
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10دورية أكاديمية
المؤلفون: Solomon Y; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass; Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands., Varkevisser RRB; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Swerdlow NJ; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Li C; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Liang P; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., Siracuse JJ; Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University School of Medicine, Boston, Mass., de Borst GJ; Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands., Schermerhorn ML; Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass. Electronic address: mscherm@bidmc.harvard.edu.
المصدر: Journal of vascular surgery [J Vasc Surg] 2021 Jun; Vol. 73 (6), pp. 2021-2029. Date of Electronic Publication: 2020 Dec 02.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8407742 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6809 (Electronic) Linking ISSN: 07415214 NLM ISO Abbreviation: J Vasc Surg Subsets: MEDLINE
مواضيع طبية MeSH: Catheterization, Peripheral*/adverse effects , Catheterization, Peripheral*/mortality , Femoral Artery* , Stents*, Carotid Stenosis/*therapy , Endovascular Procedures/*instrumentation, Aged ; Carotid Stenosis/complications ; Carotid Stenosis/diagnostic imaging ; Carotid Stenosis/mortality ; Databases, Factual ; Endovascular Procedures/adverse effects ; Endovascular Procedures/mortality ; Female ; Hospital Mortality ; Humans ; Ischemic Attack, Transient/etiology ; Male ; Middle Aged ; Punctures ; Retrospective Studies ; Risk Assessment ; Risk Factors ; Stroke/etiology ; Time Factors ; Treatment Outcome