iliac vein compression syndrome

May-Thurner Syndrome (MTS) remains evasive because of the insidiousness and variable etiologies by which it can manifest. In this study, we examine a unique presentation of MTS resulting from compression of both common iliac veins by a right common iliac artery aneurysm that required complex endovascular venous and arterial intervention.

Venous compression syndromes have been described, yet the role of sex is poorly understood. Although iliac vein compression has been discussed more often with the advent of newer technologies, research has fallen short on defining epidemiology, best practices for evaluation and treatment, and differences in responses to treatment between men and females. The authors report on iliac vein compression, nonthrombotic renal vein compression, and other venous compression syndromes in females. Literature searches of PubMed were performed using the following keywords: females/females and May Thurner, venous stenting, venous outcomes, deep venous disease, deep venous compression, venous stenting, renal vein compression, renal vein surgery/stent, popliteal vein entrapment, venous thoracic vein entrapment, and popliteal vein entrapment...

Dunbar syndrome (DS) and May-Thurner syndrome (MTS) are part of a group of rare vascular disorders known as "vascular compression syndromes." Dunbar's syndrome is caused by the median arcuate ligament of diaphragm, which, due to an abnormal course, causes celiac artery compression. MTS is caused by the left common iliac vein compression pushed against the spine by the right common iliac artery causing progressive flow congestion and leading to thrombosis. Ultrasound is the first-level examination for the diagnosis of these rare pathologies and allows to recognize vascular compressions and to obtain an estimate of stenosis degree...

May-Thurner syndrome (MTS) is a pathological variant where the left iliac vein is compressed by the right iliac artery. Usually common in females between the third and fourth decades of life, this case report is about MTS in an adolescent girl. The patient was overweight and had a sedentary lifestyle. She developed a sudden onset of unilateral left leg deep venous thrombosis (DVT), leading to low-risk pulmonary embolism (PE) within a week of the symptoms starting. The patient received a heparin infusion for one week, after which she was switched to subcutaneous low-molecular-weight heparin...

INTRODUCTION AND IMPORTANCE: May-Thurner Syndrome (MTS) is an uncommon etiology of left common iliac vein thrombosis due to arterial compression. In this report, we describe a case of MTS with severe occlusion of the left common iliac vein in the context of a previously undiagnosed pancreatic cancer. We detail the endovascular resolution of the iliac vein compression and show long-term patency. CASE PRESENTATION: A 33-year-old woman on oral contraceptive pills presented with extensive thrombosis of the left common iliac vein extending cephalad into the lower IVC and inferiorly to the femoral vein...

<b/> Background: Pharmaco-mechanical thrombectomy (PMT) and catheter-directed thrombolysis (CDT) are therapeutic options for selected patients with acute deep vein thrombosis (DVT) to prevent post-thrombotic syndrome (PTS). Patients and methods: We aimed to describe the clinical characteristics and outcomes of 159 patients with symptomatic iliofemoral DVT undergoing PMT alone, CDT alone, or CDT followed by PMT (bail-out) in the Swiss Venous Stent Registry. The primary outcome was the incidence of peri-interventional major and minor bleeding complications (ISTH criteria)...

Duplicated inferior vena cava with bilateral iliac vein compression is extremely rare. We report a case of an 87-year-old man presented with bilateral lower extremity swelling, who was noted to have duplicated inferior vena cava, as revealed by computed tomography angiography (CTA). This revealed bilateral iliac vein compression caused by surrounding structures. Anticoagulant treatment combined with stent implantation completely alleviated this chronic debilitating condition during the follow-up of 2 months with no recurrence...

May-Thurner syndrome (MTS) can be caused by abdominal aortic aneurysm (AAA) compressing the left common iliac vein against the lumbar vertebra. We reported a rare case of MTS due to AAA Compression successfully treated with anticoagulation.

Nutcracker syndrome (NCS) is an uncommon condition that predominantly affects the left renal vein (LRV) because of its entrapment between the aorta and superior mesenteric vein. It can result in pain in the left flank or back, hematuria, and proteinuria. May-Thurner syndrome (MTS) is described as a condition in which the left common iliac vein is compressed by the right common iliac artery, causing swelling, fullness, venous ulcers, or varicose veins in the leg. We present a case of a 77-year-old female who had these symptoms for over a decade, until she was diagnosed in 2017...

May-Thurner Syndrome (MTS) is a unique condition characterized by the compression of the left iliac vein by the right common iliac artery, which causes venous outflow obstruction and a high risk of venous sequelae. May-Thurner Syndrome is a condition that is primarily observed in females and is an uncommon cause of deep vein thrombosis (DVT). The more common presentation of DVT is in the lower left extremity, although there have been cases of right-sided formation. In this case report, we present a patient with unprovoked, recurrent, left-sided deep vein thrombosis in a 70-year-old woman...

RATIONALE AND OBJECTIVES: To evaluate 4D Flow magnetic resonance imaging (MRI) sequences for quantitative flow measurements of the pelvic venous vasculature. MATERIALS AND METHODS: A prospective study of healthy volunteers was performed. After informed consent all subjects underwent 4D flow sequences at a 3 T MRI scanner with different isotropic resolution and different velocity encoding (Venc) settings: (sequence #1) voxel size (VS) 1.63 mm3 , Venc 50 cm/s; (sequence #2) VS 1...

BACKGROUND: Iliac vein compression syndrome (IVCS) is an underlying cause of varicose vein (VV) recurrence after venous surgery. However, the management of recurrent varicose veins (RVVs) combined with IVCS has rarely been reported. This study aimed to investigate the outcomes of a one-stop procedure to correct outflow obstruction and superficial reflux for patients with RVVs and IVCS. METHODS: A retrospective analysis was conducted of 102 consecutive patients diagnosed with RVVs...

Lower limb venous obstruction secondary to a lipoma is a rare occurrence. Patients with these benign soft tissue tumors can be asymptomatic, or may experience symptoms of pain, parasthesia, paralysis and swelling secondary to compression on adjacent neurovascular structures. Duplex ultrasound examination is the first-line investigation, but has its limitations. We report on a case of venous obstruction syndrome misdiagnosed as chronic venous insufficiency on duplex ultrasound examination, from a deep-seated giant lipoma compressing on the common femoral and distal external iliac vein in a patient with Dercum's disease...

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May-Thurner syndrome, also known as iliocaval compression syndrome, is a rare vascular condition that involves compression of the left common iliac vein by the right common iliac artery. This compression can lead to venous stasis and increase the risk of deep vein thrombosis in the left lower extremity. Treatment options range from conservative measures to endovascular procedures such as venous stenting. Here, we present the case of a 45-year-old female with a history of recurrent deep vein thrombosis in her left leg, who arrived at the emergency department with swelling, pain, and tenderness...

The treatment of choice for patients with symptomatic venous compression syndrome is venous stenting. However, this treatment has well-documented complications and, although rare, contralateral deep venous thrombosis is one of these complications. Our objective is to present a case of deep venous thrombosis of the contralateral iliac vein resulting from placement of the stent beyond the recommended position and the therapeutic challenge is to recanalize the vein with reconstruction of the iliocaval confluence...

OBJECTIVE: The aim of this study was to investigate the prevalence of radiological left common iliac vein (LCIV) compression among the asymptomatic population and identify possible predictors. METHODS: Contrast-enhanced abdominal and/or pelvic computed tomography (CT) scans of eligible asymptomatic patients were examined. The LCIV diameter was measured from different horizontal planes in the venous phase using PACSView. Degree of LCIV compression (Dc ) was calculated by a predefined formula and graded as insignificant (Dc < 25%), mild (≥ 25% Dc < 50%), moderate (≥ 50% Dc <75%), and severe (Dc ≥ 75%)...

Venous stenting is the mainstay treatment for symptomatic ilio-femoral venous outflow obstruction (IFVOO). However, with pregnancy and post-partum being hypercoagulable, there are concerns about stenting women of childbearing age. This is a systematic review up to April 2023 of studies reporting on the performance of venous stents in women who subsequently became pregnant. Data included demographics, indication for stenting, stent characteristics, stent-related complications, incidence of VTE , medical management during pregnancy and follow-up...

OBJECTIVE: We investigated the diagnostic efficacy of modified time of flight magnetic resonance venography (mTOF-MRV) for iliac vein compression syndrome diagnosis by optimizing the scanning parameters and improving image quality. METHODS: A retrospective study was conducted on 69 patients who underwent routine time of flight magnetic resonance venography (TOF-MRV) and 85 patients who received mTOF-MRV. Assessment of image quality of the two methods was performed by two radiologists using a four-point method...

OBJECTIVE: To evaluate the clinical efficacy and safety of novel ZelanteDVT™ catheter rheolytic thrombectomy in the single-session endovascular management of subacute deep venous thrombosis (DVT). METHODS: A retrospective study was performed on 31 patients with subacute DVT who underwent ZelanteDVT™ catheter rheolytic thrombectomy. Procedure data, associated complications, and venous patency score were recorded. The deep venous patency and post-thrombotic syndrome (PTS) rate were assessed in all patients during follow-up visits...