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Wang Y, Gu J, Lu L, Yang Y, Zhang W, Huang C. Endovascular Strategy for Inferior Vena Cava Thrombosis Secondary to Deep Venous Thrombosis of the Lower Extremities: Early Experience From Two Centres. Vasc Endovascular Surg 2023; 57:689-696. [PMID: 36997158 DOI: 10.1177/15385744231167668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
PURPOSE To evaluate the safety, feasibility and technical aspects of endovascular treatments for inferior vena cava (IVC) thrombosis secondary to deep venous thrombosis of the lower extremities. MATERIALS AND METHODS A retrospective study of patients from two centres who received endovascular treatment for IVC thrombosis from January 2015 to December 2020. Under the protection of the IVC filter, all lesions were treated with manual aspiration thrombectomy (MAT) followed by catheter-directed thrombolysis (CDT). Technical aspects, complications, IVC patency, Venous Clinical Severity Score (VCSS) score and Villalta score were recorded during the follow-up observation. RESULTS Endovascular procedures including MAT and CDT were performed successfully in 36 patients (97.3%). The average duration of the endovascular procedure was 71 minutes (range: 35-152 min). To protect against fatal pulmonary artery embolism, 33 filters (91.7%) were deployed in the inferior renal IVC, while three patients (8.3%) received filter implantation in the retrohepatic IVC. No severe complications occurred during the procedure. In the follow-up observations, the cumulative primary and secondary patency rates in IVC were 95% and 100%, respectively. The patency rates for the iliac vein were as follows: a primary patency rate of 77% and a secondary patency rate of 85%. The average VCSS score was 5.9 ± 2.6, and the Villalta score was 3.9 ± 2.2. The rate of post thrombotic syndrome is 22% in our study as assessed by the villalta score (Villalta score>4). CONCLUSIONS Endovascular treatment for IVC thrombosis secondary to DVT of the lower extremities is feasible, safe, and effective. This strategy alleviates venous insufficiency and results in a high patency rate in IVC.
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Affiliation(s)
- Yue Wang
- Department of Vascular Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Jingxiao Gu
- Department of Vascular Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Liu Lu
- Department of Breast Surgery, Affiliated Maternity and Child Health Care Hospital of Nantong University Nantong, Nanchang, China
| | - Yadan Yang
- Department of Vascular Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Wenwen Zhang
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University Medical School, Nanchang, China
| | - Chen Huang
- Department of Vascular Surgery, Affiliated Hospital of Nantong University, Nantong, China
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Yu T, Song J, Yu L, Deng W. A systematic evaluation and meta-analysis of early prediction of post-thrombotic syndrome. Front Cardiovasc Med 2023; 10:1250480. [PMID: 37692043 PMCID: PMC10484413 DOI: 10.3389/fcvm.2023.1250480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
Objective Post-thrombotic syndrome (PTS) is the most common long-term complication in patients with deep venous thrombosis, and the prevention of PTS remains a major challenge in clinical practice. Some studies have explored early predictors and constructed corresponding prediction models, whereas their specific application and predictive value are controversial. Therefore, we conducted this systematic evaluation and meta-analysis to investigate the incidence of PTS and the feasibility of early prediction. Methods We systematically searched databases of PubMed, Embase, Cochrane and Web of Science up to April 7, 2023. Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of the included articles, and the OR values of the predictors in multi-factor logistic regression were pooled to assess whether they could be used as effective independent predictors. Results We systematically included 20 articles involving 8,512 subjects, with a predominant onset of PTS between 6 and 72 months, with a 2-year incidence of 37.5% (95% CI: 27.8-47.7%). The results for the early predictors were as follows: old age OR = 1.840 (95% CI: 1.410-2.402), obesity or overweight OR = 1.721 (95% CI: 1.245-2.378), proximal deep vein thrombosis OR = 2.335 (95% CI: 1.855-2.938), history of venous thromboembolism OR = 3.593 (95% CI: 1.738-7.240), history of smoking OR = 2.051 (95% CI: 1.305-3.224), varicose veins OR = 2.405 (95% CI: 1.344-4.304), and baseline Villalta score OR = 1.095(95% CI: 1.056-1.135). Meanwhile, gender, unprovoked DVT and insufficient anticoagulation were not independent predictors. Seven studies constructed risk prediction models. In the training set, the c-index of the prediction models was 0.77 (95% CI: 0.74-0.80) with a sensitivity of 0.75 (95% CI: 0.68-0.81) and specificity of 0.69 (95% CI: 0.60-0.77). In the validation set, the c-index, sensitivity and specificity of the prediction models were 0.74(95% CI: 0.69-0.79), 0.71(95% CI: 0.64-0.78) and 0.72(95% CI: 0.67-0.76), respectively. Conclusions With a high incidence after venous thrombosis, PTS is a complication that cannot be ignored in patients with venous thrombosis. Risk prediction scoring based on early model construction is a feasible option, which helps to identify the patient's condition and develop an individualized prevention program to reduce the risk of PTS.
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Affiliation(s)
- Tong Yu
- Pharmacy Laboratory, College of Pharmacy, Shenyang Pharmaceutical University, Benxi, China
| | - Jialin Song
- Microbiology laboratory, College of Life Sciences and Pharmacy, Shenyang Pharmaceutical University, Benxi, China
| | - LingKe Yu
- Department of Encephalopathy, Internal Medicine Department, Liaoning University of Traditional Chinese Medicine Affiliated Second Hospital, Shenyang, China
| | - Wanlin Deng
- Electrical Engineering, Information Engineering College, Shenyang University of Chemical Technology, Shenyang, China
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Gong M, Fu G, Liu Z, Zhou Y, Kong J, Zhao B, Lou W, Gu J, He X. Rheolytic thrombectomy using an AngioJet ZelanteDVT catheter or a Solent Omni catheter for patients with proximal vein thrombosis. Thromb J 2023; 21:25. [PMID: 36899377 PMCID: PMC9999514 DOI: 10.1186/s12959-023-00472-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
PURPOSE The present study aimed to investigate the preliminary safety and efficacy of rheolytic thrombectomy (RT) using an AngioJet Zelante DVT catheter or a Solent Omni catheter for acute proximal deep vein thrombosis (DVT). MATERIAL AND METHODS We conducted a retrospective review of 40 patients who were treated with an AngioJet RT between January 2019 and January 2021, and then the patients were divided into the ZelanteDVT group (n = 17) and the Solent group (n = 23). Data on demographics, clinical characteristics, technical success, clinical success, complications, and early follow-up were analysed. RESULTS No significant differences regarding demographics were detected (all p > .05). The technical success rates were both 100%. The ZelanteDVT group had a shorter duration of RT and a higher primary RT success than the Solent group (all p < .05), and the percentage of adjunctive catheter-directed thrombolysis (CDT) was 29.4% in the ZelanteDVT group, which was significantly lower than the 73.9% in the Solent group (p = .010). The clinical success rates for the ZelanteDVT group and Solent group were 100% (17/17) and 95.7% (22/23), respectively, and these values were high in the two groups (p > .05). Apart from transient macroscopic haemoglobinuria occurring in all the patients during the first 24 hours post-RT, none of the patients in either group suffered other procedure-related adverse events or major complications. Minor complications included bleeding events in 21.7% (5/23) of the patients in the Solent group and one (5.9%) patient in the ZelanteDVT group (p > .05). At 6 months, the frequency of PTS was 5.9% (1/17) in the ZelanteDVT group and 17.4% (4/23) in the Solent group (p > .05). CONCLUSION Both catheters are safe and effective in managing patients with proximal DVT, thus leading to improved clinical outcomes with few complications. The ZelanteDVT catheter was more effective than the Solent catheter in thrombectomy, thus allowing for faster extraction of the DVT with a shorter run time and lower proportions of patients with adjunctive CDT.
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Affiliation(s)
- Maofeng Gong
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Guanqi Fu
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Zhengli Liu
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Yangyi Zhou
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Jie Kong
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Boxiang Zhao
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Wensheng Lou
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Jianping Gu
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China
| | - Xu He
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, People's Republic of China.
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Gong M, Fu G, Liu Z, Zhou Y, Zhao B, Kong J, He X, Gu J. AngioJet rheolytic thrombectomy for the treatment of deep vein thrombosis in elderly patients: Increase the risk of acute kidney injury? Digit Health 2023; 9:20552076231154691. [PMID: 36776409 PMCID: PMC9909069 DOI: 10.1177/20552076231154691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/17/2023] [Indexed: 02/10/2023] Open
Abstract
Objective The objective of this study was to investigate the risk of acute kidney injury in elderly patients compared with nonelderly patients undergoing AngioJet rheolytic thrombectomy for treatment of acute deep vein thrombosis. Methods A retrospective review of all patients who underwent AngioJet rheolytic thrombectomy for the treatment of acute deep vein thrombosis between November 1, 2014 and August 1, 2022 was conducted. Their baseline demographics, comorbidities, clinical characteristics, procedural details, and postoperative course were reviewed. Results A total of 105 eligible patients were reviewed; 45 patients were in the elderly group, and 60 were in the nonelderly group. Except for age (p < 0.001), no significant differences regarding demographics were detected (p >0.05). Transient macroscopic hemoglobinuria occurred in all patients during the first 24 h post-AngioJet rheolytic thrombectomy. The overall morbidity of acute kidney injury in the two groups was 11.4%, and the nonelderly group had a similar rate of acute kidney injury (8.3%) to the elderly group (15.6%). None of the 12 patients progressed to dialysis within the postoperative period, and the mean acute kidney injury recovery time of the elderly group was 5.86 ± 1.57 days, which was longer than the 3.60 ± .89 days of the nonelderly group (p = 0.017). Conclusion The use of AngioJet rheolytic thrombectomy for the treatment of patients with acute deep vein thrombosis is associated with a potential risk of acute kidney injury, which seems to have a comparable rate in elderly and nonelderly patients. acute kidney injury in the elderly group tends to need a longer recovery time, which requires postoperative vigilance for this population.
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Affiliation(s)
- Maofeng Gong
- Jianping Gu, Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China.
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Kishore SA, Bajwa R, Van Doren L, Wilkins C, O'Sullivan GJ. Endovascular Management of Venous Thromboembolic Disease in the Oncologic Patient Population. Curr Oncol Rep 2022; 24:351-362. [PMID: 35129782 DOI: 10.1007/s11912-022-01191-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Venous thromboembolic disease causes significant mortality and morbidity in the oncologic patient population. Recently, minimally invasive endovascular technologies have been developed as an adjunct to antithrombotic therapy for the management of DVT and PE. The current and potential roles for endovascular treatment of cancer-associated venous thromboembolism (VTE) will be reviewed in this article. RECENT FINDINGS The recent NCCN guidelines recommend endovascular therapy in patients eligible for therapeutic anticoagulation who present with life-, organ-, or limb-threatening thrombosis. However, symptomatic non-life-threatening VTE can negatively affect QOL and physical function, both of which have prognostic implications in the cancer population. Endovascular therapies have been shown to improve physical function and QOL in prospective trials performed in a non-oncologic patient population as well as small retrospective studies in the cancer population. In addition to treating life- and limb-threatening thrombosis, endovascular therapy for VTE can improve QOL and physical function in comparison to anticoagulation alone. Prospective trials are warranted to assess the benefit of endovascular therapy for quality of life-years, performance status, and overall survival in the oncologic patient population.
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Affiliation(s)
- Sirish A Kishore
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA. .,Department of Radiology, Stanford University, Palo Alto, CA, USA.
| | - Raazi Bajwa
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Layla Van Doren
- Department of Medicine, Division of Hematologic/Oncology, Columbia University Medical Center, New York, NY, USA
| | - Cy Wilkins
- Department of Medicine, Division of Hematology and Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gerard J O'Sullivan
- Department of Interventional Radiology, Galway University Hospital, Galway, Ireland
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Avila L, Cullinan N, White M, Gaballah M, Cahill AM, Warad D, Rodriguez V, Tarango C, Hoppmann A, Nelson S, Kuhn T, Biss T, Weiss A, Temple M, Amaral JG, Amiri N, Xavier AC, Renzi S, Brandão LR. Pediatric May-Thurner Syndrome-Systematic review and individual patient data meta-analysis. J Thromb Haemost 2021; 19:1283-1293. [PMID: 33651481 PMCID: PMC8126469 DOI: 10.1111/jth.15284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/08/2021] [Accepted: 02/25/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND The outcomes of deep vein thrombosis (DVT) in children with May-Thurner Syndrome (MTS) remain unclear. OBJECTIVES This systematic review and patient-level meta-analysis aims to describe the outcomes of children with MTS presenting with DVT. METHODS A systematic review of the published literature was performed. Data related to patients <18 years diagnosed with MTS and DVT was extracted. Risk of bias was assessed using the Murad criteria. Outcomes included vessel patency post-treatment, DVT recurrence, and post-thrombotic syndrome (PTS). Predictive and explanatory models were developed for these outcomes. RESULTS In total, 109 cases were identified (age range 4-17 years; 77 females) in 28 studies; 75% of patients had ≥1 additional risk factor for DVT. PTS was seen in 61% of patients, DVT recurrence in 38%, and complete vessel patency post-treatment in 65%. The models developed to predict and explain PTS performed poorly overall. Recurrent thrombosis (adjusted for age and patency) predicted PTS (odds ratio [OR] 3.36, 95% confidence interval [CI] 1.28-8.82). DVT management strategies (adjusted for age and DVT characteristics) predicted vessel patency (OR 2.10, 95% CI 1.43-3.08). Lack of complete vessel patency (adjusted for age and thrombophilia) predicted recurrent DVT (OR 2.70, 95% CI 1.09-6.67). Sensitivity analyses showed the same direction of effects for all outcomes. CONCLUSIONS PTS and DVT recurrence occur frequently in pediatric MTS. PTS prediction is complex and it was not possible to identify early predictors to guide clinical practice. Use of imaging-guided therapy and thrombus burden predicted venous patency, and lack of patency predicted DVT recurrence.
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Affiliation(s)
- Laura Avila
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Michael White
- Children’s Healthcare of Atlanta, Emory University, Atlanta, Georgia, USA
| | - Marian Gaballah
- The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Anne Marie Cahill
- The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | | | - Cristina Tarango
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Centre, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Anna Hoppmann
- Children’s of Alabama, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Stephen Nelson
- Children’s Hospitals and Clinics of Minnesota, Minneapolis, Minnesota, USA
| | - Tomas Kuhn
- University Hospital Ostrava and Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - Tina Biss
- Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | | | - Michael Temple
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - João G. Amaral
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nour Amiri
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ana C. Xavier
- Children’s of Alabama, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Samuele Renzi
- The Hospital for Sick Children, Toronto, Ontario, Canada
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Mukherjee D, Kittner J. Surgical Considerations in the Treatment of Axillary-Subclavian Venous Thrombosis in the Era of COVID-19. Vasc Endovascular Surg 2021; 55:663-667. [PMID: 33757394 DOI: 10.1177/15385744211002803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Traditional treatment of axillary-subclavian venous thrombosis is resource intensive due to the need for advanced nursing care and increased utilization of intensive care units for thrombolysis procedures. We recently encountered this in the management of 2 patients with effort-induced upper extremity venous thrombosis following COVID-19 infection and offer a treatment paradigm for consideration. CASE REPORTS A 30-year-old presented with 2 weeks of left upper extremity symptoms following COVID-19 infection. Duplex ultrasound demonstrated axillary-subclavian venous thrombosis and venogram confirmed total occlusion of the axillary and subclavian veins with profuse collaterals around the occlusion. Suction thrombectomy was performed successfully and veins remained patent at 6 month follow up. The patient declined first rib resection and stopped lifting weights. A 16-year-old presented with 4 days of right arm symptoms 1 month after testing positive for COVID-19. Duplex ultrasound revealed acute axillary and subclavian vein thrombosis and she underwent successful thrombectomy followed by balloon angioplasty with improvement in symptoms. CONCLUSION The pandemic has strained health care resources such that the treatment of non-life-threatening conditions must be triaged to conserve resources. While axillary-subclavian venous occlusion is usually not life-threatening, timely treatment leads to decreased morbidity and better outcomes. Percutaneous aspiration and thrombectomy without adjunctive thrombolysis may be of benefit in reducing healthcare resource utilization while still achieving good outcomes during the COVID pandemic and beyond.
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Beller E, Becher M, Meinel FG, Kröger JC, Rajagopal R, Höft R, Weber MA, Heller T. Prevalence and predictors of alternative diagnoses on whole-leg ultrasound negative for acute deep venous thrombosis. BMC Med Imaging 2020; 20:127. [PMID: 33267839 PMCID: PMC7709303 DOI: 10.1186/s12880-020-00527-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
Background To investigate the prevalence, spectrum, and predictors of alternative diagnoses explaining leg symptoms in patients negative for suspected acute deep venous thrombosis (DVT), which can be detected with whole-leg ultrasound. Methods We retrospectively analyzed a cohort of 789 patients (median age 70 years, 50.6% women) evaluated with a whole-leg ultrasound examination for suspected acute DVT within one year. All findings in the radiology report were analyzed and electronic chart review was performed to collect clinical information. Results Ultrasound was negative for acute DVT in 531 patients (67.3%). Among these, alternative diagnoses explaining leg symptoms were seen in 349 patients (65.7%). The most frequent alternative diagnoses were chronic venous insufficiency (147 patients, 27.7%), followed by lymphedema (48 patients, 9.0%) and chronic post-thrombotic changes (41 patients, 7.7%). Patients with alternative diagnoses were older (median 71 vs. 66 years, p = 0.0226), as well as more likely to present with leg swelling (39.5% vs. 23.1%, p = 0.0002), difference in leg circumference (25.5% vs. 14.8%, p = 0.0055) and redness (7.7% vs. 2.7%, p = 0.0213) than patients without alternative diagnosis. Independent predictors of finding alternative diagnoses on whole-leg ultrasound were older age (odds ratio 1.014 per year, p = 0.0119), leg swelling (OR 1.949, p = 0.0020) and history of previous DVT (OR 2.235, p = 0.0154). Conclusions Alternative diagnoses explaining leg symptoms can be detected on whole-leg ultrasound in two thirds of patients with no evidence of acute DVT. Our data supports performing a comprehensive ultrasound evaluation beyond the venous system, particularly, in older patients, who present with leg swelling and a past history of DVT.
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Affiliation(s)
- Ebba Beller
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Mattes Becher
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Felix G Meinel
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Jens-Christian Kröger
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | | | - Raimund Höft
- Department of Emergency Medicine, University Medical Centre Rostock, Rostock, Germany
| | - Marc-André Weber
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Thomas Heller
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
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