How to Assess Illusory May–Thurner Syndrome by Ultrasound

Zamboni, Paolo; Franceschi, C.

doi:10.1016/j.ejvs.2019.01.034

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…The situation may be even more serious if a patient were to undergo the examination in the supine position. In past studies, the blood flow of common iliac vein will further decrease as a result of the increase in the intensity of CIV compression when lying down, which may cause a misjudgment of the severity of compression [ 37 ]. Therefore, when severe CIV compression is highly suspected at TRANCE MRI images and QFlow data, other vascular examinations, such as intravascular ultrasound, should be considered to avoid posture-related artifacts.…”

Section: Discussionmentioning

confidence: 99%

Reduced External Iliac Venous Blood Flow Rate Is Associated with Asymptomatic Compression of the Common Iliac Veins

et al. 2021

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Background and Objectives: Compression of the common iliac veins (CIV) is not always associated with lower extremity symptoms. This study analyzed this issue from the perspective of patient venous blood flow changes using quantitative flow magnetic resonance imaging. Materials and Methods: After we excluded patients with active deep vein thrombosis, the mean flux (MF) and mean velocity (MV) of the popliteal vein, femoral vein, and external iliac vein (EIV) were compared between the left and right sides. Results: Overall, 26 of the patients had unilateral CIV compression, of which 16 patients had symptoms. No significant differences were noted in the MF or MV of the veins between the two sides. However, for the 10 patients without symptoms, the EIV MF of the compression side was significantly lower than the EIV MF of the non-compression side (p = 0.04). The receiver operating characteristic curve and chi-squared analyses showed that when the percentage difference of EIV MF between the compression and non-compression sides was ≤−18.5%, the relative risk of associated lower extremity symptoms was 0.44 (p = 0.016). Conclusions: If a person has compression of the CIV, a decrease in EIV blood flow rate on the compression side reduces the rate of symptom occurrence.

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Section: Discussionmentioning

confidence: 99%

Reduced External Iliac Venous Blood Flow Rate Is Associated with Asymptomatic Compression of the Common Iliac Veins

et al. 2021

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“…14 There are several studies most of them retrospective reporting high technical success up to 98% and low complication rates with five years follow up from 0% to 20% 18,19,37,64,65 ; but, in many patients symptom relief were reported inconsistently. 82,83,86 Previous systematic reviews showed relief of edema and pain in up to 64% to 68% and 82% of patients studied 96,97 ; This suggests that more than one third of the patients could be overtreated.…”

Section: Diagnostic Assessment and Risk Of Overtreatmentmentioning

confidence: 98%

May Thurner syndrome: Sixty years later

et al. 2021

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May-Thurner syndrome (MTS) was described sixty years ago. Once ignored for several years, it is currently a recognized pathology in the vascular surgery community; but not long ago due to several factors, it was underdiagnosed and sub-optimally treated. In the last 20 years, with renewed interest in venous pathology, technical imaging advances and the recent interventional procedures, it has become a better known disease. On the other hand, nowadays the easiness in diagnosis and treatment of the syndrome has lead to overtreatment of such patients. In this article, we do a historical review and describe the significant advances and current management of May-Thurner syndrome.

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“…Nonetheless, this imaging tool provides useful, noninvasive information that allows for risk stratification. In patients with primary evidence for compression, postural change with reassessment may help to distinguish illusory with flow recovery from true (persistent) compression [17]. In the obstetric population, DVT is significantly more likely to occur proximally, with a high predilection for involvement of the iliofemoral vessels [11,[18][19][20].…”

Section: Ultrasoundmentioning

confidence: 99%

Management of May Thurner Syndrome in Pregnant Patients

Schrufer-Poland

Florio

Grodzinsky

et al. 2022

JCDD

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May Thurner Syndrome contributes to thromboembolic disease and can cause significant morbidity in pregnant patients secondary to exaggerated anatomic relationships and physiologic changes in the hematologic system favoring thrombogenesis. Because this condition is both underrecognized and underreported, management in pregnant and postpartum patients is based on expert opinion without any formal evidence-based guidance. Herein, we review five pregnancies in four patients with May Thurner Syndrome and general management strategies. Through collaborative and multidisciplinary care, patients with May Thurner Syndrome can be safely and successfully managed during pregnancy and the postpartum period with appropriate anticoagulation.

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How to Assess Illusory May–Thurner Syndrome by Ultrasound

Cited by 4 publications

References 3 publications

Reduced External Iliac Venous Blood Flow Rate Is Associated with Asymptomatic Compression of the Common Iliac Veins

Reduced External Iliac Venous Blood Flow Rate Is Associated with Asymptomatic Compression of the Common Iliac Veins

May Thurner syndrome: Sixty years later

Management of May Thurner Syndrome in Pregnant Patients

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