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flight thrombosis vein

Mike J Clarke, Cathryn Broderick, Sally Hopewell, Ed Juszczak, Anne Eisinga
BACKGROUND: Air travel might increase the risk of deep vein thrombosis (DVT). It has been suggested that wearing compression stockings might reduce this risk. This is an update of the review first published in 2006. OBJECTIVES: To assess the effects of wearing compression stockings versus not wearing them for preventing DVT in people travelling on flights lasting at least four hours. SEARCH METHODS: For this update the Cochrane Vascular Information Specialist (CIS) searched the Specialised Register (10 February 2016)...
September 14, 2016: Cochrane Database of Systematic Reviews
Ahmad Alsheekh, Anil Hingorani, Natalie Marks, Enrico Ascher
OBJECTIVE: There is an increasing number of procedures that traditionally were performed in the inpatient setting that are now becoming office-based procedures. These include peripheral endovascular procedures such as angiograms, angioplasties, dialysis access interventions, and treatment for venous insufficiency. We chose to evaluate the feasibility, safety of inferior vena cava (IVC) filter placement in the office-based setting. METHODS: All procedures were performed using local anesthesia, and ultrasound guidance for puncture...
July 2016: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Peter Buzzacott, Andreas Mollerlokken
Aviation deep vein thrombosis is a challenge poorly understood in modern aviation. The aim of the present project was to determine if cabin decompression might favor formation of vascular bubbles in commercial air travelers. Thirty commercial flights were taken. Cabin pressure was noted at take-off and at every minute following, until the pressure stabilized. These time-pressure profiles were imported into the statistics program R and analyzed using the package SCUBA. Greatest pressure differentials between tissues and cabin pressures were estimated for 20, 40, 60, 80 and 120 min half-time compartments...
October 2016: Journal of Thrombosis and Thrombolysis
Kiyoshi Tamura, Hideki Nakahara
OBJECTIVE: To assess the performance of magnetic resonance venography (MRV) for pelvis and deep vein thrombosis in the lower extremities before surgical interventions for varicose veins. MATERIALS AND METHODS: We enrolled 72 patients who underwent MRV and ultrasonography before stripping for varicose veins of lower extremities. All images of the deep venous systems were evaluated by time-of-flight MRV. RESULTS: Forty-six patients (63.9%) of all were female...
2014: Annals of Vascular Diseases
C Whitney White, Angela R Thomason, Valerie Prince
OBJECTIVE: To report a patient case identifying risk for recurrent venous thromboembolism (VTE) associated with heterozygous Factor V Leiden mutation. CASE SUMMARY: A 54-year-old Caucasian male was diagnosed with heterozygous Factor V Leiden mutation in 2008 after experiencing a deep vein thrombosis (DVT) and bilateral pulmonary embolism. The patient was treated appropriately and started on anticoagulation therapy with warfarin through an anticoagulation management clinic...
September 2014: Hospital Pharmacy
Maria L Hahnemann, Sonja Kinner, Bernd Schweiger, Thomas Bajanowski, Bernd Karger, Heidi Pfeiffer, Daniel Wittschieber
OBJECTIVES: Abusive head trauma (AHT) in infants is usually diagnosed using a multi-disciplinary approach by investigating the circumstances and identifying morphological indicators, for example, subdural hematomas (SDHs), subdural hygromas (SDHys), retinal haemorrhages and encephalopathy. The present morphological study investigates the incidence, radiological characteristics and non-radiological co-factors of bridging vein thrombosis (BVT) in infants with AHT. METHODS: From 2002 to 2013, computed tomography (CT) and magnetic resonance imaging (MRI) material of 628 infants aged 0-2 years were analysed retrospectively...
February 2015: European Radiology
Calen Wherry
No abstract text is available yet for this article.
December 2013: Aviation, Space, and Environmental Medicine
Siddharth A Padia, Adam Alessio, Sharon W Kwan, David H Lewis, Sandeep Vaidya, Satoshi Minoshima
PURPOSE: To compare positron emission tomography/computed tomography (PET/CT) imaging with bremsstrahlung single photon emission computed tomography (SPECT) in patients after yttrium-90 ((90)Y) microsphere radioembolization to assess particle uptake. MATERIALS AND METHODS: This prospective study comprised patients with large (> 5 cm) hepatocellular carcinoma (HCC) or tumor-associated portal vein thrombus (PVT), or both. After radioembolization for HCC, patients underwent bremsstrahlung SPECT/CT and time-of-flight PET/CT imaging of (90)Y without additional tracer administration...
August 2013: Journal of Vascular and Interventional Radiology: JVIR
Om P Gulati
The present review provides an update of the biological profile of Pycnogenol in the light of its use in the treatment of chronic venous insufficiency (CVI) and related venous disorders such as deep vein thrombosis (DVT), post-thrombotic syndrome, long haul air-travel-related leg oedema, venous ulcers and acute haemorrhoids. Pycnogenol is a French maritime pine bark extract produced from the outer bark of Pinus pinaster Ait. subsp. atlantica. Its strong antioxidant, anti-inflammatory and vasodilator activities, antithrombotic effects and collagen stabilizing properties make it uniquely able to target the multi facet pathophysiology of CVI and related venous disorders...
March 2014: Phytotherapy Research: PTR
Peter Iblher, Hauke Paarmann, Kristina Stuckert, Andreas Werner, Friedrich K Klotz, Wolfgang Eichler
BACKGROUND: Long-haul flights (LHF) are known to be connected with an increased risk of deep vein thrombosis. There is still some lack of clarity about the impact of hypoxia and lower levels of air pressure and humidity on passengers during flight. This cross-over study researched interstitial fluid shifts traced by measurements of tissue thickness (TT) under controlled simulated conditions of a LHF. METHODS: There were 18 male volunteers (28.4 +/- 8.1 yr) who were subjected to both procedure 1 (altitude: 2500 m/humidity: 15%)and procedure 2 (altitude: 0 m/humidity: 50%), each lasting 8 h...
May 2013: Aviation, Space, and Environmental Medicine
W-J Metsemakers, J Duchateau, F Vanhoenacker, Y Tielemans, J De Leersnyder
We report a 71-year-old obese white female who presented with sudden right calf pain after a long distance flight. Symptoms were initially regarded as venous in origin. Duplex investigation ruled out deep vein thrombosis. Ultimately she presented to our department with complaints of claudication. Clinical evaluation and a new duplex scan showed occlusion of the right popliteal artery. Further evaluation with CT-angiography showed, besides occlusion of the right popliteal artery, a floating thrombus in the infrarenal abdominal aorta...
January 2013: Acta Chirurgica Belgica
Alan Nurden, Patrick Mercié, Pascal Zely, Paquita Nurden
Patients with Glanzmann thrombasthenia fail to form large platelet thrombi due to mutations that affect the biosynthesis and/or function of the αIIbβ3 integrin. The result is a moderate to severe bleeding syndrome. We now report unusual vascular behaviour in a 55-year-old woman with classic type I disease (with no platelet αIIbβ3 expression) and a homozygous ITGA2B missense mutation (E324K) affecting the terminal β-propeller domain of αIIb. While exhibiting classic bleeding symptoms as a child, in later life this woman first developed deep vein thrombosis after a long air flight then showed vascular problems characteristic of Raynaud's phenomenon, and finally this year she presented with chest pains suggestive of coronary heart disease...
2012: Case Reports in Hematology
Ali Raza Rajani, Kosar Hussain, Fahad Omar Baslaib, Ghazi Ahmad Radaideh
A 72-year-old man was referred to our hospital as a case of postcardiac arrest following a long distance air flight. Work-up in the emergency department revealed the presence of deep vein thrombosis (DVT), bilateral pulmonary embolism, inferior STEMI (ST elevation myocardial infarction) and ischaemic stroke. He received thrombolysis by recombinant tissue plasminogen activator (tPA) following which his haemodynamic status improved, but he developed haemorrhagic transformation of the stroke as a complication...
2012: BMJ Case Reports
Yon-Kwon Ihn, Won-Sang Jung, Seong-Su Hwang
OBJECTIVES: The purpose of this study is to compare the various magnetic resonance imaging (MRI) sequences when they are used to visualize and evaluate cerebral venous thrombosis. METHODS: Eleven patients with cerebral venous thrombosis were retrospectively analyzed using computed tomography, MRI, magnetic resonance angiography (MRA), and conventional angiography. The MR sequence included T1-weighted spin echo (SE) imaging, obtained before and after administration of contrast medium, T2-weighted turbo spin echo (TSE), fluid-attenuated inversion recovery (FLAIR), T2*-weighted conventional gradient-echo (GRE), as well as three-dimensional (3D) venous time-of-flight MRA and conventional angiography...
May 2013: Clinical Imaging
Yan Wang, Heng-hui Zhang, Yan-hui Chen, Xing-wang Xie, Wei-jia Liao, Li-ling Qin, Xiu-yun Sun, Ran Fei, Xue-yan Wang, Lai Wei, Hong-song Chen, Ming-hui Mei
OBJECTIVE: To explore the correlation between single nucleotide polymorphisms (SNPs) of interleukin-28B (IL-28B) gene and the susceptibility to primary hepatocellular carcinoma (HCC). METHODS: A total of 300 histologically confirmed HCC cases (from November 2001 to April 2010) and 310 healthy controls with no history of chronic hepatitis B or hepatocellular carcinoma (2009-2010) were selected from a hospital in Guilin and a hospital in Beijing for this case-control study...
June 2012: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
T Gertsch, T Pfammatter, M Braun, L Hechelhammer, C Meyenberger, D Semela, M Sawatzki
We report about a 27-years old female patient with acute liver failure due to an acute Budd Chiari Syndrom (thrombosis of all three liver veins an vena cava inferior) with caval web, birth control pills and after long distance flight. After successfull aspiration of the caval thrombus and dilatation of caval web liver transplantation could be bypassed. Two weeks after intervention the patient was in a good healthy condition with normal laboratory values, normal liver size, normal perfusion of the V. cava inferior and signs of reperfusion of the middle liver vein...
August 8, 2012: Praxis
Zoran Mihailovic, Bojana Radnic, Tatjana Atanasijevic, Vesna Popovic
Air travel as a risk factor for pulmonary thromboembolism (PTE) is rarely described in forensic literature. Two cases of PTE after air travel are presented in this report. Each flight was intercontinental and lasted for more than 10 h, resulting in typical "traveler's thrombosis" within 2 weeks. In both cases, the risk factors were age, duration of flight and also peripheral circulation problems caused by heart (hypertension, arrhythmia), and varicose veins failures. Possible pathophysiological mechanisms of thrombus formation in these cases were blood flow stasis from prolonged recumbence, reduced function of the lower leg muscle pump, dehydration, and hypobaric hypoxia...
October 10, 2012: Forensic Science International
At Tucker, A Maass, Ds Bain, L-H Chen, M Azzam, H Dawson, A Johnston
BACKGROUND: Deep vein thrombosis (DVT) is the formation of a blood clot within the deep veins. During periods of sitting, blood flow is decreased and this contributes to an increased risk of DVT. Trials have shown that 5% to 10% of passengers undertaking long-haul flights develop asymptomatic calf DVT. AIM: To investigate the safety and efficacy of a novel neuromuscular device that augments peripheral blood flow. METHODS: Thirty healthy volunteers were assessed while seated...
2010: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
Muhammad Shafique Sajid, Mittal Desai, Richard Morris, George Hamilton
OBJECTIVE: To systematically review the randomized controlled trials that have evaluated the efficacy of knee-length (KL) compression stockings for thromboprophylaxis in air travellers. METHOD: After an electronic database search, the randomized controlled trials that studied passengers on long-haul flights were selected and analyzed to generate summative data. RESULTS: Nine trials studying participants using KL stockings were analyzed. Forty-six of 1261 participants randomly assigned to the control group developed deep vein thrombosis (DVT), compared with two of 1237 participants (0...
2008: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
Hasan Yiğit, Aynur Turan, Elif Ergün, Pınar Koşar, Uğur Koşar
OBJECTIVES: To compare time-resolved imaging of contrast kinetics (TRICKS) magnetic resonance angiography (MRA) with two-dimensional time-of-flight (TOF) magnetic resonance venography (MRV), and three-dimensional contrast-enhanced (CE) MRV in the visualisation of normal cerebral veins and dural venous sinuses. METHODS: This prospective study consisted of 35 consecutive patients. All patients were examined with TOF MRV, TRICKS MRA and CE MRV; a single dose of intravenous contrast material was administered for the last two sequences...
May 2012: European Radiology
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