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AIUM Practice Parameter for the Performance of Peripheral Arterial Ultrasound Examinations Using Color and Spectral Doppler Imaging. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2021; 40:E17-E24. [PMID: 33555645 DOI: 10.1002/jum.15643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
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Pieruzzi L, Napoli V, Goretti C, Adami D, Iacopi E, Cicorelli A, Piaggesi A. Ultrasound in the Modern Management of the Diabetic Foot Syndrome: A Multipurpose Versatile Toolkit. INT J LOW EXTR WOUND 2020; 19:315-333. [PMID: 32820699 DOI: 10.1177/1534734620948351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ultrasound (US) is a noninvasive and versatile technology that in recent years found acceptance in almost all the medical specialties, with diagnostic and interventional applications. In the diabetic foot syndrome (DFS), US found specific indications mainly in the screening, quantification, and follow-up of the vascular component of the pathology, but also in the study of the deformities and structural modifications induced by neuropathy and in the diagnosis and surgical management of infections, especially those that induce anatomical changes, like abscesses and fasciitis. This review will summarize all these application of US, giving special attention to the vascular aspects, and on the predominant role that US gained in recent times to guide the indication to revascularization, on the new standardized approach to the study of the arterial tree of the limb and the foot, the so-called duplex ultrasound arterial mapping, which significantly increased the utilization of US to plan the revascularizations in this complex pathology. Outside the vascular fields, the diagnosis of neuropathy and infection and the intraoperative use of US in the surgical management of abscesses and fasciitis will be discussed, leaving the last part to the new and interesting applications of US in the management of DFU, a field that is still in evolution, offering new possibilities to the health care professionals involved in the management of these chronic wounds. The variety of applications both in diagnostic and operative fields makes US a rather versatile technology-a toolkit-that should have a special place among those at reach of the specialists of DFS care.
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Donohue CM, Adler JV, Bolton LL. Peripheral arterial disease screening and diagnostic practice: A scoping review. Int Wound J 2019; 17:32-44. [PMID: 31680419 DOI: 10.1111/iwj.13223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/18/2019] [Indexed: 11/28/2022] Open
Abstract
Early reliable, valid screening, diagnosis, and treatment improve peripheral arterial disease outcomes, yet screening and diagnostic practices vary across settings and specialties. A scoping literature review described reliability and validity of peripheral ischaemia diagnosis or screening tools. Clinical studies in the PUBMED database January 1, 1970, to August 13, 2018, were reviewed summarising ranges of reliability and validity of peripheral ischaemia diagnostic and screening tools for patients with non-neuropathic lower leg ischaemia. Peripheral ischaemia screening and diagnostic practices varied in parameters measured such as timing, frequency, setting, ordering clinicians, degree of invasiveness, costs, definitions, and cut-off points informing clinical and referral decisions. Traditional ankle/brachial systolic blood pressure index <0.9 was a reliable, valid lower leg ischaemia screening test to trigger specialist referral for detailed diagnosis. For patients with advanced peripheral ischaemia or calcified arteries, toe-brachial index, claudication, or invasive angiographic imaging techniques that can have complications were reliable, valid screening, and diagnostic tools to inform management decisions. Ankle/brachial index testing is sufficiently reliable and valid for use during routine examinations to improve timing and consistency of peripheral ischaemia screening, triggering prompt specialist referral for more reliable, accurate Doppler, or other diagnosis to inform treatment decisions.
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Affiliation(s)
- Cornelius M Donohue
- Wound Healing and Limb Preservation Center of Philadelphia LLC, Ardmore, Pennsylvania
| | - Joseph V Adler
- Department of Occupational and Physical Therapy, Good Shepherd Penn Partners at the Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Laura L Bolton
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
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Cooper K, Majdalany BS, Kalva SP, Chandra A, Collins JD, Francois CJ, Ganguli S, Gornik HL, Kendi AT, Khaja MS, Minocha J, Norton PT, Obara P, Reis SP, Sutphin PD, Rybicki FJ. ACR Appropriateness Criteria ® Lower Extremity Arterial Revascularization-Post-Therapy Imaging. J Am Coll Radiol 2019; 15:S104-S115. [PMID: 29724414 DOI: 10.1016/j.jacr.2018.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 03/04/2018] [Indexed: 02/07/2023]
Abstract
Peripheral arterial disease (PAD) affects millions across the world and in the United States between 9% to 23% of all patients older than 55 years. The refinement of surgical techniques and evolution of endovascular approaches have improved the success rates of revascularization in patients afflicted by lower extremity PAD. However, restenosis or occlusion of previously treated vessels remains a pervasive issue in the postoperative setting. A variety of different imaging options are available to evaluate patients and are reviewed within the context of asymptomatic and symptomatic patients with PAD who have previously undergone endovascular or surgical revascularization. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
| | - Kyle Cooper
- Research Author, University of Michigan Health System, Ann Arbor, Michigan
| | - Bill S Majdalany
- Principal Author and Panel Vice-Chair, University of Michigan Health System, Ann Arbor, Michigan.
| | | | - Ankur Chandra
- Scripps Green Hospital, La Jolla, California; Society for Vascular Surgery
| | | | | | | | - Heather L Gornik
- Cleveland Clinic Heart and Vascular Institute, Cleveland, Ohio; American College of Cardiology
| | | | | | - Jeet Minocha
- University of California, San Diego, San Diego, California
| | | | - Piotr Obara
- Loyola University Medical Center, Maywood, Illinois
| | | | | | - Frank J Rybicki
- Specialty Chair, Ottawa Hospital Research Institute and the Department of Radiology, The University of Ottawa, Ottawa, Ontario, Canada
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Richter L, Freisinger E, Lüders F, Gebauer K, Meyborg M, Malyar NM. Impact of diabetes type on treatment and outcome of patients with peripheral artery disease. Diab Vasc Dis Res 2018; 15:504-510. [PMID: 30246546 DOI: 10.1177/1479164118793986] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The prevalence of diabetes mellitus and its associated complications such as peripheral artery disease is increasing worldwide. We aimed to explore the distinct impact of type 1 diabetes mellitus and type 2 diabetes mellitus on treatment and on short- and long-term outcome in patients with peripheral artery disease. METHODS Retrospective analysis of anonymized data of hospitalized patients covered by a large German health insurance. Assessment of patient's characteristics (comorbidities, complications, etc.) and outcome using multivariable Cox regression and Kaplan-Meier curves. RESULTS Among 41,702 patients with peripheral artery disease, 339 (0.8%) had type 1 diabetes mellitus and 13,151 (31.5%) had type 2 diabetes mellitus. Patients with diabetes mellitus had more comorbidities and complications than patients without diabetes mellitus ( p < 0.001). Type 1 diabetes mellitus patients exhibited the highest risk for limb amputation at 4-year follow-up (44.6% vs 35.1%, p < 0.001), while type 2 diabetes mellitus patients had higher mortality than type 1 diabetes mellitus (43.6% vs 31.0%, p < 0.001). CONCLUSION Although the fraction of type 1 diabetes mellitus among patients with peripheral artery disease and diabetes mellitus is low, it represents a subset of patients being at particular high risk for limb amputation. Research focused on elaborating the determinants of limb amputation and mortality in peripheral artery disease patients with diabetes mellitus is warranted to improve the poor prognosis of these patients.
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Affiliation(s)
- Lars Richter
- 1 Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Münster, Münster, Germany
| | - Eva Freisinger
- 1 Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Münster, Münster, Germany
| | - Florian Lüders
- 2 Ambulatory Vascular Center Münster (AGZM), Münster, Germany
| | - Katrin Gebauer
- 1 Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Münster, Münster, Germany
| | - Matthias Meyborg
- 1 Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Münster, Münster, Germany
| | - Nasser M Malyar
- 1 Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Münster, Münster, Germany
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Abualhin M, Sonetto A, Faggioli G, Mirelli M, Freyrie A, Gallitto E, Spath P, Stella A, Gargiulo M. Outcomes of Duplex-Guided Paramalleolar and Inframalleolar Bypass in Patients with Critical Limb Ischemia. Ann Vasc Surg 2018; 53:154-164. [DOI: 10.1016/j.avsg.2018.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 04/10/2018] [Accepted: 04/10/2018] [Indexed: 10/14/2022]
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Fabiani I, Calogero E, Pugliese NR, Di Stefano R, Nicastro I, Buttitta F, Nuti M, Violo C, Giannini D, Morgantini A, Conte L, Barletta V, Berchiolli R, Adami D, Ferrari M, Di Bello V. Critical Limb Ischemia: A Practical Up-To-Date Review. Angiology 2017; 69:465-474. [PMID: 29161885 DOI: 10.1177/0003319717739387] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Critical limb ischemia (CLI) is the most advanced form of peripheral artery disease. It is associated with significant morbidity and mortality and high management costs. It carries a high risk of amputation and local infection. Moreover, cardiovascular complications remain a major concern. Although it is a well-known entity and new technological and therapeutic advances have been made, this condition remains poorly addressed, with significantly heterogeneous management, especially in nonexperienced centers. This review, from a third-level dedicated inpatient and outpatient cardioangiology structure, aims to provide an updated summary on the topic of CLI of its complexity, encompassing epidemiological, social, economical and, in particular, diagnostic/imaging issues, together with potential therapeutic strategies (medical, endovascular, and surgical), including the evaluation of cardiovascular risk factors, the diagnosis, and treatment together with prognostic stratification.
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Affiliation(s)
- Iacopo Fabiani
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Enrico Calogero
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Nicola Riccardo Pugliese
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Rossella Di Stefano
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Irene Nicastro
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Flavio Buttitta
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Marco Nuti
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Caterina Violo
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Danilo Giannini
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Alessandro Morgantini
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Lorenzo Conte
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Valentina Barletta
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Raffaella Berchiolli
- 2 Vascular Surgery Operative Unit, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Daniele Adami
- 2 Vascular Surgery Operative Unit, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Mauro Ferrari
- 2 Vascular Surgery Operative Unit, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
| | - Vitantonio Di Bello
- 1 Cardioangiology Universitary Departmental Section, Cardio Thoracic and Vascular Department, A.O.U.P., University of Pisa, Pisa, Italy
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Bredahl K, Mestre XM, Coll RV, Ghulam QM, Sillesen H, Eiberg J. Contrast-Enhanced Ultrasound in Vascular Surgery: Review and Update. Ann Vasc Surg 2017; 45:287-293. [DOI: 10.1016/j.avsg.2017.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 05/19/2017] [Accepted: 05/26/2017] [Indexed: 01/24/2023]
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Freisinger E, Malyar NM, Reinecke H, Lawall H. Impact of diabetes on outcome in critical limb ischemia with tissue loss: a large-scaled routine data analysis. Cardiovasc Diabetol 2017; 16:41. [PMID: 28376797 PMCID: PMC5379505 DOI: 10.1186/s12933-017-0524-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/25/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Patients with diabetes concomitant to critical limb ischemia (CLI) represent a sub-group at particular risk. Objective of this analysis is to evaluate the actual impact of diabetes on treatment, outcome, and costs in a real-world scenario in Germany. METHODS We obtained routine-data on 15,332 patients with CLI with tissue loss from the largest German health insurance, BARMER GEK from 2009 to 2011, including a follow-up until 2013. Patient data were analyzed regarding co-diagnosis with diabetes with respect to risk profiles, treatment strategy, in-hospital and long-term outcome including costs. RESULTS Diabetic patients received less overall revascularizations in Rutherford grades 5 and 6 (Rutherford grade 5: 45.0 vs. 55.5%; Rutherford grade 6: 46.5 vs. 51.8; p < 0.001) and less vascular surgery (Rutherford grade 5: 13.4 vs. 23.4; Rutherford grade 6: 19.7 vs. 29.6; p < 0.001), however more often endovascular revascularization in Rutherford grade 6 (31.0 vs. 28.1; p = 0.004) compared to non-diabetic patients. Diabetes was associated with a higher observed ratio of infections (35.3 vs. 23.5% Rutherford grade 5; 44.3 vs. 27.4% Rutherford grade 6; p < 0.001) and in-hospital amputations (13.0 vs. 7.3% Rutherford grade 5; 47.5 vs. 36.7% Ruth6; p < 0.001). Diabetes further increased the risk for amputation during follow-up [Rutherford grade 5: HR 1.51 (1.38-1.67); Rutherford grade 6: HR 1.33 (1.25-1.41); p < 0.001], but not for death. CONCLUSIONS Diabetes increases markedly the risk of amputation attended by higher costs in CLI patients with tissue loss (OR 1.67 at Rutherford 5, OR 1.53 at Rutherford 6; p < 0.001), but is associated with lower revascularizations. However, in Rutherford grades 5 and 6, concomitant diabetes does not further worsen the overall poor survival.
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Affiliation(s)
- Eva Freisinger
- Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Muenster, Albert Schweitzer Campus 1, A1, 48149, Muenster, Germany.
| | - Nasser M Malyar
- Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Muenster, Albert Schweitzer Campus 1, A1, 48149, Muenster, Germany
| | - Holger Reinecke
- Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Muenster, Albert Schweitzer Campus 1, A1, 48149, Muenster, Germany
| | - Holger Lawall
- Praxis für Herzkreislauferkrankungen und Akademie für Gefaeßkrankheiten, Ettlingen, Germany
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Neufang A. Indikationen und Ergebnisse der Bypasschirurgie bei kritischer Extremitätenischämie (CLI). GEFASSCHIRURGIE 2015. [DOI: 10.1007/s00772-015-0024-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sultan S, Hynes N. Commentary: on the silver jubilee of subintimal angioplasty, how successful are contemporary endovascular therapies in the management of critical limb ischemia? J Endovasc Ther 2014; 21:254-7. [PMID: 24754285 DOI: 10.1583/13-4510c.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sherif Sultan
- Western Vascular Institute, Department of Vascular and Endovascular Surgery, Galway University Hospital, Galway, Ireland
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de Vos MS, Bol BJ, Gravereaux EC, Hamming JF, Nguyen LL. Treatment planning for peripheral arterial disease based on duplex ultrasonography and computed tomography angiography: Consistency, confidence and the value of additional imaging. Surgery 2014; 156:492-502. [DOI: 10.1016/j.surg.2014.03.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 03/19/2014] [Indexed: 12/31/2022]
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de Vos MS, Hawkins AT, Hevelone ND, Hamming JF, Nguyen LL. National variation in the utilization of alternative imaging in peripheral arterial disease. J Vasc Surg 2014; 59:1315-22.e1. [PMID: 24423477 DOI: 10.1016/j.jvs.2013.11.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 11/07/2013] [Accepted: 11/10/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The value and cost-effectiveness of less invasive alternative imaging (AI) modalities (duplex ultrasound scanning, computed tomography angiography, and magnetic resonance angiography) in the care of peripheral arterial disease (PAD) has been reported; however, there is no consensus on their role. We hypothesized that AI utilization is low compared with angiography in the United States and that patient and hospital characteristics are both associated with AI utilization. METHODS The Nationwide Inpatient Sample (2007-2010) was used to identify patients with an International Classification of Diseases-Ninth Edition diagnosis of claudication or critical limb ischemia (CLI) as well as PAD treatment (surgical, endovascular, or amputation). Patients with AI and those with angiography or expected angiography (endovascular procedures without imaging codes) were selected and compared. Multivariable logistic regression was performed for receiving AI stratified by claudication and CLI and adjusting for patient and hospital factors. RESULTS We identified 290,184 PAD patients, of whom 5702 (2.0%) received AI. Patients with AI were more likely to have diagnosis of CLI (78.8% vs 48.6%; P < .0001) and receive open revascularizations (30.4% vs 18.8%; P < .0001). Van Walraven comorbidity scores (mean [standard error] 5.85 ± 0.22 vs 4.10 ± 0.05; P < .0001) reflected a higher comorbidity burden in AI patients. In multivariable analysis for claudicant patients, AI was associated with large bed size (odds ratio [OR], 3.26, 95% confidence interval [CI], 1.16-9.18; P = .025), teaching hospitals (OR, 1.97; 95% CI, 1.10-3.52; P = .023), and renal failure (OR, 1.52; 95% CI, 1.13-2.05; P = .006). For CLI patients, AI was associated with black race (OR, 1.53; 95% CI, 1.13-2.08; P = .006) and chronic heart failure (OR, 1.29; 95% CI, 1.04-1.60; P = .021) and was negatively associated with renal failure (OR, 0.80; 95% CI, 0.67-0.95; P = .012). The Northeast and West regions were associated with higher odds of AI in claudicant patients (OR, 2.41; 95% CI, 1.23-4.75; P = .011; and OR, 2.59; 95% CI, 1.34-5.02; P = .005, respectively) and CLI patients (OR, 4.31; 95% CI, 2.20-8.36; P < .0001; and OR, 2.18; 95% CI, 1.12-4.22; P = .021, respectively). Rates of AI utilization across states were not evenly distributed but showed great variability, with ranges from 0.31% to 9.81%. CONCLUSIONS National utilization of AI for PAD is low and shows great variation among institutions in the United States. Patient and hospital factors are both associated with receiving AI in PAD care, and AI utilization is subject to significant regional variation. These findings suggest differences in systems of care or practice patterns and call for a clearer understanding and a more unified approach to imaging strategies in PAD care.
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Affiliation(s)
- Marit S de Vos
- Department of Surgery, Division of Endovascular and Vascular Surgery, Brigham & Women's Hospital and Harvard Medical School, Boston, Mass; Department of Surgery, Division of Vascular Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Alexander T Hawkins
- Center for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Boston, Mass
| | - Nathanael D Hevelone
- Center for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Boston, Mass
| | - Jaap F Hamming
- Department of Surgery, Division of Vascular Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Louis L Nguyen
- Department of Surgery, Division of Endovascular and Vascular Surgery, Brigham & Women's Hospital and Harvard Medical School, Boston, Mass; Center for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Boston, Mass.
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