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  • JAMA Surgery October 11, 2017

    Figure: Patient Flowchart

    Selection of patients undergoing an endovascular aortic aneurysm repair (EVAR), carotid endarterectomy (CEA), carotid artery stenting (CAS), lower extremity bypass (LEB), or peripheral vascular intervention (PVI) in nationwide hospitals and assessment of imaging studies performed within a 1-year period after these procedures. Patients who underwent EVAR were assessed for abdominal duplex ultrasonography or abdominal computed tomography (CT). Those who underwent LEB or PVI were assessed for ankle-brachial index study, duplex study, angiography, or CT angiography. Those who underwent CEA or CAS were assessed for carotid duplex study or CT angiography of the neck. The subsequent linkage of Medicare claims to data from Vascular Quality Initiative (VQI) participating hospitals was undertaken to perform difference-in-differences analysis.
  • JAMA Surgery September 20, 2017

    Figure 1: Acute Abdominal Pain in a Man in His 50s

    A, Contrast-enhanced computed tomographic (CECT) image showing an intra-abdominal hyperdense mass (arrowhead) and free fluid in the upper abdomen. B, Visceral artery angiogram revealing an aneurysm (arrowhead).
  • JAMA Surgery May 1, 2017

    Figure 2: Multiple Injuries in Blunt Abdominal Trauma

    Angiogram showing deployment of thoracic stent graft.
  • JAMA Surgery November 1, 2016

    Figure 1: Abdominal Pain Following Lower Gastrointestinal Bleeding

    A, Computed tomographic angiogram showing pooling of contrast in right colon (yellow arrowhead), B, Selective embolization of right colic artery with a gel foam slurry.
  • Abdominal Pain Following Lower Gastrointestinal Bleeding

    Abstract Full Text
    JAMA Surg. 2016; 151(11):1079-1080. doi: 10.1001/jamasurg.2016.0994

    A 67-year old man was evaluated for lower gastrointestinal tract bleeding. What is your diagnosis?

  • JAMA Surgery October 1, 2015

    Figure 2: Elderly Man With 1-Month History of Flank and Abdominal Pain

    Completion angiogram of deployed endograft in infrarenal aorta and excluded aneurysm.
  • Elderly Man With 1-Month History of Flank and Abdominal Pain

    Abstract Full Text
    JAMA Surg. 2015; 150(10):1011-1012. doi: 10.1001/jamasurg.2015.0975

    An elderly man presented to the emergency department with a 1-month history of new-onset, persistent lower abdominal and flank pain that was sharp and constant with intermittent radiation to the back and associated anorexia with a 10-kg weight loss. What is your diagnosis?

  • JAMA Surgery August 1, 2015

    Figure 1: Arm Ischemia and Posterior Stroke in a Patient With a Pulsatile Mass in the Right Upper Side of Chest

    A, Magnetic resonance imaging of the head. B, Selective angiogram of the innominate artery.
  • JAMA Surgery August 1, 2015

    Figure 2: Arm Ischemia and Posterior Stroke in a Patient With a Pulsatile Mass in the Right Upper Side of Chest

    Aortic arch completion angiogram indicating successful coverage of innominate artery pseudoaneurysm with an iCAST balloon-expandable covered stent (Atrium).
  • Arteriography for Lower Gastrointestinal Hemorrhage: Role of Preceding Abdominal Computed Tomographic Angiogram in Diagnosis and Localization

    Abstract Full Text
    free access
    JAMA Surg. 2015; 150(7):650-656. doi: 10.1001/jamasurg.2015.97

    This pre-post analysis of patients who received visceral angiography for acute lower gastrointestinal hemorrhage showed that preceding visceral angiography with computed tomographic angiography improves localization of the hemorrhage site. See also the Invited Commentary by Lightner and Russell.

  • JAMA Surgery July 1, 2015

    Figure 1: Computed Tomographic Angiogram and Subsequent Radiologic Intervention

    Computed tomographic angiography (CTA) showing unenhanced (A), arterial (B), and venous (C) phase images of a 74-year-old woman with diverticular hemorrhage in the ascending colon and hepatic flexure. Arrowheads mark extravasation of contrast on the arterial phase and accumulation of endoluminal contrast on the venous phase. Arteriogram of superior mesenteric artery with arrowhead marking extravasation (D). Selective right colonic artery injection with arrowhead marking endoluminal contrast (E). Post-angiography and embolization fluoroscopic image with arrowhead marking 2 coils placed in adjacent vasa recta with cessation of bleeding and preservation of marginal artery of Drummund.
  • JAMA Surgery January 1, 2015

    Figure 2: Symptomatic Carotid Stenosis

    Angiogram of the left internal carotid artery following stent placement.
  • JAMA Surgery September 1, 2014

    Figure 2: Abrupt Vomiting and Pain With Abdominal Mass

    A, Typical corkscrew vessels and both tapering and obstruction of the superior mesenteric artery are shown by use of a 3-dimensional reconstruction of a computed tomographic angiographic scan. B, Encircled loops of the small-bowel volvulus around the superior mesenteric artery.
  • JAMA Surgery August 1, 2014

    Figure 1: Unadjusted Vein Graft Failure (VGF) Rates According to Vein Graft Preservation Solutions

    A, Adjusted odds ratios (ORs) for patient-level VGF. B, Adjusted ORs for graft-level VGF. Patients and grafts are stratified by vein graft preservation solutions for the angiographic cohort.
  • Vein Graft Preservation Solutions, Patency, and Outcomes After Coronary Artery Bypass Graft Surgery: Follow-up From the PREVENT IV Randomized Clinical Trial

    Abstract Full Text
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    JAMA Surg. 2014; 149(8):798-805. doi: 10.1001/jamasurg.2014.87

    Harskamp et al evaluate the effect of vein graft preservation solutions on vein graft failure and clinical outcomes in patients undergoing coronary artery bypass graft (CABG) surgery. See the Invited Commentary by Yuh.

  • JAMA Surgery November 1, 2013

    Figure 1: Angiograms

    A, Carotid angiogram showing a large sheath misplaced in the common carotid artery during jugular vein cannulation. No filling defect is seen, suggestive of thrombus. B, Computed tomographic angiogram performed 2 days later showing successful closure.
  • Preoperative Superselective Mesenteric Angiography and Methylene Blue Injection for Localization of Obscure Gastrointestinal Bleeding

    Abstract Full Text
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    JAMA Surg. 2013; 148(7):665-668. doi: 10.1001/jamasurg.2013.345

    Pai and coauthors review the management of patients presenting with obscure gastrointestinal bleeding during the period from 2005 to 2011. Four patients had preoperative localization of the bleeding site with superselective mesenteric angiography, which was confirmed by the use of intraoperative methylene blue injection. This novel technique allowed them to identify the abnormal pathology.

  • JAMA Surgery May 1, 2013

    Figure: Image of the Month—Quiz Case

    Figure 1. An abdominal computed tomographic scan showed a giant solid lesion occupying the entire abdominal cavity (A), and angiography showed a relatively hypervascular tumor in the entire abdomen (B).
  • Image of the Month—Quiz Case

    Abstract Full Text
    free access
    JAMA Surg. 2013; 148(5):479-479. doi: 10.1001/jamasurg.2013.301a