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Zurkiya O, Ganguli S, Irani Z, Liu R, Oliveira G, Walker G, Wicky S, Salazar G. Incidence of May-Thurner syndrome (MTS) in patients under evaluation of lower extremity venous reflux: implications for treatment. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Chittle M, Liu R, Petrozza J, Wicky S, Salazar G. Uterine fibroid quality improvement project: implementing an integrated program for fibroids to increase referrals, uterine fibroid embolization procedures, and time from consult to procedure. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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3
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Tao H, Hirsch J, Sheridan R, Miguel K, Wicky S, Salazar G. Implementation of team training in vascular interventional radiology (IR): adherence of training and impact in workflow and outcomes. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Zurkiya O, Ganguli S, Irani Z, Liu R, Oklu R, Oliveira G, Salazar G, Wicky S, Zhao T, King D, Velmahos G, Yeh D, Walker G. Provocative mesenteric angiography for gastrointestinal hemorrhage. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Butros SR, Walker TG, Salazar GM, Kalva SP, Oklu R, Wicky S, Ganguli S. Direct translumbar inferior vena cava ports for long-term central venous access in patients with cancer. J Vasc Interv Radiol 2014; 25:556-60. [PMID: 24507994 DOI: 10.1016/j.jvir.2013.12.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 12/16/2013] [Accepted: 12/17/2013] [Indexed: 10/25/2022] Open
Abstract
PURPOSE To evaluate the indications, complications, and long-term results of translumbar port placements to the inferior vena cava for long-term central venous access in a single tertiary center. MATERIALS AND METHODS This retrospective study included all patients with cancer who underwent translumbar port placement from January 2000 to July 2012; 31 patients (all women) with an average age of 53.1 years ± 11.1 (range, 30-77 y) were included in the study. Of these patients, 26 (81%) had breast cancer, 3 had lung cancer, 1 had ovarian cancer, and 1 had rectal cancer. Indications included central venous occlusion in 9 patients (29%) and bilateral mastectomy and lymph node dissection in 22 patients (71%). RESULTS All procedures were technically successful. The overall 30-day complication rate was 9.7% (n = 3). Average catheter use was 14.1 months ± 21 (range, 0.75-108 mo). Thirteen (41.9%) ports were removed because they were no longer needed; 4 (12.9%) ports required removal for port malfunction; 12 (38.7%) patients died with their ports still in place; 2 (6.5%) ports remain in use. Three (9.7%) ports required delayed secondary intervention to remain functional. One patient had a systemic infection attributed to the port, resulting in an overall infection rate of 0.08 per 1,000 catheter days. CONCLUSIONS Translumbar inferior vena cava port placement is a technically feasible and safe alternative method for long-term central venous access.
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Elias N, Kawai T, Ko DSC, Saidi R, Tolkoff-Rubin N, Wicky S, Cosimi AB, Hertl M. Native portal vein embolization for persistent hyperoxaluria following kidney and auxiliary partial liver transplantation. Am J Transplant 2013; 13:2739-42. [PMID: 23915277 DOI: 10.1111/ajt.12381] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/14/2013] [Accepted: 06/06/2013] [Indexed: 01/25/2023]
Abstract
Type 1 primary hyperoxaluria (PH1) causes renal failure, for which isolated kidney transplantation (KT) is usually unsuccessful treatment due to early oxalate stone recurrence. Although hepatectomy and liver transplantation (LT) corrects PH1 enzymatic defect, simultaneous auxiliary partial liver transplantation (APLT) and KT have been suggested as an alternative approach. APLT advantages include preservation of the donor pool and retention of native liver function in the event of liver graft loss. However, APLT relative mass may be inadequate to correct the defect. We here report the first case of native portal vein embolization (PVE) to increase APLT to native liver mass ratio (APLT/NLM-R). Following initial combined APLT-KT, both allografts functioned well, but oxalate plasma levels did not normalize. We postulated the inadequate APLT/NLM-R could be corrected by trans-hepatic native PVE. The resulting increased APLT/NLM-R decreased serum oxalate to normal levels within 1 month following PVE. We conclude that persistently elevated oxalate levels after combined APLT-KT for PH1 treatment, results from inadequate relative functional capacity. This can be reversed by partial native PVE to decrease portal flow to the native liver. This approach might be applicable to other scenarios where partial grafts have been transplanted to replace native liver function.
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Oklu R, Deipolyi AR, Wicky S, Ergul E, Deik AA, Chen JW, Hirsch JA, Wojtkiewicz GR, Clish CB. Identification of small compound biomarkers of pituitary adenoma: a bilateral inferior petrosal sinus sampling study. J Neurointerv Surg 2013; 6:541-6. [PMID: 24005126 DOI: 10.1136/neurintsurg-2013-010821] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Evaluation of the pathogenic mechanisms underlying Cushing disease (CD) is limited partly by the inaccessibility of the pituitary gland for biopsy. We used bilateral inferior petrosal sinus sampling (BIPSS), the gold standard in diagnosing pituitary sources of CD, to obtain central blood samples for in vivo metabolomic analysis of pathways involved in pituitary adenomas. We evaluated 16 samples from eight patients who underwent BIPSS to measure adrenocorticotropic hormone (ACTH) levels in the inferior petrosal sinus (IPS) bilaterally. Seven patients had CD with concordant BIPSS, surgical, and pathologic findings. Samples from the IPS contralateral to histologically proven lesions were used as controls. BIPSS of the eighth patient revealed no central pituitary ACTH source, and these samples were also included as controls. Plasma samples were profiled using a combination of three liquid chromatography tandem mass spectrometry methods, which assessed 259 metabolites. Following Bonferroni correction for multiple comparisons, three small compound biomarkers of CD (pyridoxate, deoxycholic acid, and 3-methyladipate) were identified to be significantly altered in pituitary adenomas. The pathway most significantly impacted in CD samples is one previously shown to be upregulated in other cancers. Exploiting the BIPSS technique, we showed a complete metabolite and lipid profile of pituitary adenomas in CD. These potential biomarkers of CD may elucidate tumor biology and suggest possible diagnostic molecular imaging probes as well as therapeutic targets in patients with recurrent disease after surgery.
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Salazar GM, Gregory Walker T, Conway RF, Yeddula K, Wicky S, Waltman AC, Kalva SP. Embolization of Angiographically Visible Type I and II Utero-ovarian Anastomoses during Uterine Artery Embolization for Fibroid Tumors: Impact on Symptom Recurrence and Permanent Amenorrhea. J Vasc Interv Radiol 2013; 24:1347-52. [DOI: 10.1016/j.jvir.2013.05.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/17/2013] [Accepted: 05/17/2013] [Indexed: 11/15/2022] Open
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Prabhakar AM, Harvey HB, Wicky S, Hirsch JA, Thrall JH, Oklu R. What's Brewing: How Interventional Radiologists Can Learn From the Reinvention of Starbucks. J Am Coll Radiol 2013; 10:559-61. [DOI: 10.1016/j.jacr.2012.12.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 12/26/2012] [Indexed: 11/28/2022]
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Kalva SP, Pectasides M, Liu R, Rachamreddy N, Surakanti S, Yeddula K, Ganguli S, Wicky S, Blaszkowsky LS, Zhu AX. Safety and effectiveness of chemoembolization with drug-eluting beads for advanced-stage hepatocellular carcinoma. Cardiovasc Intervent Radiol 2013; 37:381-7. [PMID: 23754191 DOI: 10.1007/s00270-013-0654-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 05/01/2013] [Indexed: 02/06/2023]
Abstract
BACKGROUND According to the Barcelona Clinic Liver Cancer (BCLC) algorithm, patients with advanced stage (BCLC-C) hepatocellular carcinoma (HCC) are recommended for systemic treatment or palliative therapy. However, chemoembolization with drug-eluting beads (DEB-TACE) has been shown to be safe in high-risk patients. The purpose of our study was to evaluate the safety and effectiveness of DEB-TACE in patients with an advanced-stage HCC. METHODS In this institutional review board-approved, retrospective study, 80 patients with advanced-stage HCC underwent DEB-TACE with doxorubicin. Patients were evaluated for median hospital stay, incidence of Grade 3/4 toxicities, 30-day mortality, progression-free survival (PFS), and overall survival (OS) following DEB-TACE. Univariate and multivariate analysis were performed for predictors of better OS. RESULTS The median hospital stay following DEB-TACE was 1 day (range: 1-11). The median PFS and OS were 5.1 months [95% confidence interval (CI): 4.1-7.7] and 13.3 months (95% CI: 10.1-18.6) respectively. On multivariate analysis ECOG PS ≤ 1 and >2 DEB-TACE procedures were associated with better OS. Patients with ECOG PS ≤ 1 demonstrated a median survival of 17.7 months compared with 5.6 months for patients with ECOG PS > 1 (p = 0.025). Multiple DEB-TACE procedures (>2 procedures) were associated with improved survival (26.8 months) compared with patients with one or two procedures (11.4 months, p = 0.01). Portal vein thrombosis or extrahepatic disease had no statistically significant association with OS. CONCLUSIONS DEB-TACE is safe and effective in patients with advanced HCC. ECOG PS ≤ 1 and >2 DEB-TACE procedures were associated with better OS.
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Sheth RA, Hesketh R, Kong DS, Wicky S, Oklu R. Barriers to drug delivery in interventional oncology. J Vasc Interv Radiol 2013; 24:1201-7. [PMID: 23735316 DOI: 10.1016/j.jvir.2013.03.034] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/28/2013] [Accepted: 03/29/2013] [Indexed: 11/17/2022] Open
Abstract
Although much attention has been paid to mechanisms of anticancer drug resistance that focus on intracellular processes that protect tumor cells, it has recently become increasingly evident that the unique features of the tumor microenvironment profoundly impact the efficacy of cancer therapies. The properties of this extracellular milieu, including increased interstitial pressure, decreased pH, hypoxia, and abnormal vascularity, result in limited drug efficacy; this finding is true not only for systemic chemotherapy but also for catheter-based therapies, including chemoembolization and radioembolization. The present review summarizes the barriers to drug delivery imposed by the tumor microenvironment and provides methods to overcome these hurdles.
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Prabhakar, Alkasab T, Harvey H, Ganguli S, Salazar G, Walker G, Kalva S, Liu R, Irani Z, Wicky S, Oliveira G, Oklu R. Grapevine: a novel PACS-integrated group peer-review system to improve quality and standardization in vascular and interventional radiology. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Butros S, Oklu R, Walker G, Kalva S, Salazar G, Wicky S, Ganguli S. Translumbar ports: feasibility and efficacy of direct translumbar inferior vena cava approach for long-term central venous access. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Kalva S, Elmi A, Somarouthu B, Karaosmanoglu A, Liu R, Ganguli S, Oklu R, Walker G, Salazar G, Wicky S. Angiographic intervention in patients with gastrointestinal bleeding. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Politi R, Kawai T, Wu S, Wicky S, Walker G. Review of the HeRO (hemodialysis reliable outflow) device: a novel approach for hemodialysis. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Wicky S, Pinto EG, Oklu R. Catheter-directed thrombolysis of arterial thrombosis. Semin Thromb Hemost 2013; 39:441-5. [PMID: 23483456 DOI: 10.1055/s-0033-1334482] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Thrombotic or embolic arterial occlusive disease can lead to profound ischemia and, without emergent revascularization, is associated with significant morbidity and mortality. Significant advances in the management of arterial occlusive disease range from newer thrombolytic agents to innovative catheter designs to enhance thrombolysis and thrombectomy. Most of these advances have been directed toward the management of acute limb ischemia; therefore, we review the management of limb ischemia with emphasis on endovascular interventions.
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Abstract
Venous thrombosis is a major public health problem associated with significant morbidity and mortality and has a substantial impact on the quality of life. Over the years, it has become more apparent that anticoagulation alone in the treatment of deep venous thrombosis (DVT) is insufficient in the prevention of postthrombotic syndrome, which adversely impacts the quality of life of the patient, and it is insufficient in preventing recurrence of DVT. With the advent of innovative catheter designs to deliver thrombolytic therapies in the treatment of DVT, there have been significant advances in the management of DVT. We review the management of DVT with emphasis on catheter-directed interventions.
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Tan CS, Jie C, Joe J, Irani ZD, Ganguli S, Kalva SP, Wicky S, Wu S. The impact of transvenous cardiac devices on vascular access patency in hemodialysis patients. Semin Dial 2013; 26:728-32. [PMID: 23458207 DOI: 10.1111/sdi.12073] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Creating a vascular access in the presence of a cardiovascular implantable electronic device (CIED) in a patient with or approaching end-stage renal disease can be challenging. In this study, we aimed to evaluate the impact of a CIED on the outcomes of vascular access creation in hemodialysis patients and determine their effects on vascular access patency. This is a single-center retrospective review of hemodialysis patients who underwent vascular access creation after CIED placement. Outcomes of vascular access creation and need for endovascular interventions were compared between patients with vascular access created ipsilateral and contralateral to the site of CIED. Comparing patients with arteriovenous (AV) access created ipsilateral to CIED placement (n=19) versus the contralateral side (n=17), the primary failure rate was 78.9% versus 35.3% (p=0.02). For AV accesses that were matured, the median primary patency durations for AV accesses created ipsilateral to the CIED was 11.2 months compared to 7.8 months for AV accesses created contralateral to the CIED (p=1.00). AV accesses created ipsilateral to a CIED have a higher primary failure rate compared with the contralateral arm and should be avoided as much as possible.
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Gunn AJ, Iqbal SI, Kalva SP, Walker TG, Ganguli S, Salazar GM, Oklu R, Wicky S. Intravascular Ultrasound-Guided Inferior Vena Cava Filter Placement Using a Single-Puncture Technique in 99 Patients. Vasc Endovascular Surg 2013; 47:97-101. [DOI: 10.1177/1538574412473186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Brazeau NF, Pinto EG, Harvey HB, Oliveira GR, Pomerantz BJ, Wicky S, Oklu R. Critical limb ischemia: an update for interventional radiologists. Diagn Interv Radiol 2012; 19:173-80. [PMID: 23233402 DOI: 10.4261/1305-3825.dir.5955-12.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Critical limb ischemia (CLI) is a growing epidemic with bleak patient outcomes. A variety of treatment modalities have been adopted to address CLI based on comorbidities, life expectancy, and the nature of the arterial disease. With advances in technology and treatment strategies, the clinical outcomes of CLI patients have significantly improved over recent years. However, despite progress, patency rates of both surgical and endovascular interventions, limb-salvage and amputation rates are still dismal. We review the epidemiology, treatment strategies, imaging modalities, and the microcirculation aspect of CLI.
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Iqbal SI, Elmi A, Hedgire S, Yeddula K, Ganguli S, Walker TG, Salazar GM, Wicky S, Kalva SP. Preliminary Experience With Option Inferior Vena Cava Filter. Vasc Endovascular Surg 2012; 47:24-9. [DOI: 10.1177/1538574412465971] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objectives: To evaluate the safety and efficacy of Option inferior vena cava (IVC) filter during placement and short-term follow-up. Methods: A total of 165 patients (mean age: 60-years) who received Option IVC filter from June 2009 to July 2011 were included. In all, 42 patients presented with deep vein thrombosis (DVT), 26 with pulmonary embolism (PE), and 17 with both. All outcomes were examined until April 30, 2012. Results: The filters were successfully deployed in 161patients. During follow-up (mean, 9.5 ± 0.68months), 10 patients were diagnosed with post-filter PE and 13 patients with DVT. There were no instances of fatal PE. Follow-up abdominal computed tomography was available in 60 patients and demonstrated filter-related problems in 8 patients (2: penetration of filter legs, 5: asymptomatic nonocclusive thrombus, and 1: caval occlusion). There were no instances of filter migration or fracture. In total, 27 filters were successfully retrieved after a mean of 5.27 ± 0.76 months. Conclusion: The Option filter was effective and safe during implantation and short-term follow-up and associated with high technical success at retrieval.
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Oklu R, Albadawi H, Watkins MT, Monestier M, Sillesen M, Wicky S. Detection of extracellular genomic DNA scaffold in human thrombus: implications for the use of deoxyribonuclease enzymes in thrombolysis. J Vasc Interv Radiol 2012; 23:712-8. [PMID: 22525027 DOI: 10.1016/j.jvir.2012.01.072] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 01/20/2012] [Accepted: 01/20/2012] [Indexed: 01/04/2023] Open
Abstract
PURPOSE Mechanisms underlying transition of a thrombus susceptible to tissue plasminogen activator (TPA) fibrinolysis to one that is resistant is unclear. Demonstration of a new possible thrombus scaffold may open new avenues of research in thrombolysis and may provide mechanistic insight into thrombus remodeling. MATERIALS AND METHODS Ten human thrombus samples were collected during cases of thrombectomy and open surgical repair of abdominal aortic aneurysms (five samples < 3 d old and five samples > 1 y old). Additionally, an acute murine hindlimb ischemia model was created to evaluate thrombus samples in mice. Human sections were immunostained for the H2A/H2B/DNA complex, myeloperoxidase, fibrinogen, and von Willebrand factor. Mouse sections were immunostained with the H2A antibody. All samples were further evaluated after hematoxylin and eosin and Masson trichrome staining. RESULTS An extensive network of extracellular histone/DNA complex was demonstrated in the matrix of human ex vivo thrombus. This network is present throughout the highly cellular acute thrombus. However, in chronic thrombi, detection of the histone/DNA network was predominantly in regions of low collagen content and high cell density, which were mostly near the lumen. These regions of high cell density contained neutrophils and monocytes. Similarly, sections from the acute murine hindlimb ischemia model also exhibited extensive immunoreactivity to the histone antibody in the extracellular space within murine thrombi. CONCLUSIONS Extensive detection of genomic DNA associated with histones in the extracellular matrix of human and mouse thrombi suggest the presence of a new thrombus-associated scaffold.
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Habito CMR, Wicky S, Kalva SP. Garland vein: sequela of left innominate occlusion. J Vasc Interv Radiol 2012; 23:1223. [PMID: 22841899 DOI: 10.1016/j.jvir.2012.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 06/05/2012] [Accepted: 06/08/2012] [Indexed: 11/29/2022] Open
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McDermott S, Oliveira G, Ergül E, Brazeau N, Wicky S, Oklu R. May-Thurner syndrome: can it be diagnosed by a single MR venography study? Diagn Interv Radiol 2012; 19:44-8. [PMID: 22801870 DOI: 10.4261/1305-3825.dir.5939-12.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE We aimed to evaluate the longitudinal stability of left common iliac vein (LCIV) compression by the right common iliac artery on magnetic resonance venography (MRV). MATERIALS AND METHODS This retrospective study included 214 patients diagnosed with May-Thurner syndrome by MRV. We identified a subset of patients who underwent contrast-enhanced cross-sectional imaging of the pelvis six months before or anytime after the MRV and did not undergo any interventional venous procedures between the two studies; 36 patients met these criteria. The degree of venous compression was calculated in both the index and comparison study. RESULTS On the index MRV, the mean compression of the LCIV was 62%. However, on the comparison study in the same patients, the mean compression was 39%. The mean change in degree of compression between the two studies was 23% (P < 0.0001), ranging from a 12% increase to 69% decrease in degree of compression on the comparison study. CONCLUSION The compressed LCIV on a single MRV study was not stable over time and thus may be insufficient to diagnose May-Thurner syndrome.
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Deipolyi A, Ergul E, Clish C, Deik A, Chen J, Wicky S, Oklu R. Abstract No. 42: Identification of small compound biomarkers of pituitary adenomas: a bilateral inferior petrosal sinus sampling study. J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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