Cockett syndrome: understanding, diagnosing and treating pelvic venous compression
Cockett syndrome , also known as May -Thurner syndrome , is a venous pathology caused by compression of the left iliac vein by the right iliac artery.
This compression disrupts the return of blood to the heart and causes poor venous circulation , often leading to recurrent varicose veins or phlebitis , and especially to pelvic congestion syndrome of obstructive origin. In advanced cases, the kidneys can be affected.
Dr. Guilhem Seban , a vascular surgeon in Annecy , Annemasse and Geneva , specializes in the diagnosis and treatment of this condition using minimally invasive endovascular techniques .
What is Cockett syndrome?
Nutcracker syndrome is a compression of the left renal vein by the aorta and superior mesenteric artery. Venous return is hindered by this compression and the dilation of the poorly draining veins causes the symptoms. There may be repercussions on the kidney.
This syndrome occurs preferentially in women and can manifest as the equivalent of pelvic congestion syndrome with pelvic pain or pain localized to the left flank, hematuria and proteinuria.
Angio-CT scan is a good examination to confirm the diagnosis.
Before proposing treatment, several consultations are necessary to assess the discomfort, the impact on daily life, and any possible kidney manifestations.
Sometimes gaining weight in very thin subjects can improve or eliminate clinical signs by reducing compression of the renal vein.
Historical treatments are surgical (transposition and release of the renal vein) but it appears that the placement of stents in the renal vein gives excellent results in several publications without the risks of surgery.
When possible, we favour endovascular treatments for left renal vein compression syndrome.
Associated pelvic varicose veins can be treated at the same time by embolization.
Symptoms of Cockett syndrome
The symptoms are often unilateral :
- Heavy and swollen legs ;
- Abdominal pain described as heaviness, more often on the left side
- Recurrent varicose veins on the left leg;
- A feeling of tension or heat ;
- Recurrent phlebitis without apparent cause.
In advanced stages, we sometimes observe:
- Skin hyperpigmentation ,
- Venous ulcers ,
Visible asymmetry between the two legs.
Diagnosis of Cockett syndrome
The diagnosis is based on several specialized imaging examinations:
- Venous Doppler ultrasound : the first step to assess circulation and detect reflux.
- Phlebography or venous scan : allows precise visualization of the compression of the iliac vein.
- Venous MRI (pelvic MRI): the reference examination to confirm the diagnosis.
Dr. Seban works with specialized imaging centers for a rapid and accurate diagnosis of this often underestimated pathology.
Treatment of Cockett syndrome
Medical treatment
In moderate forms:
- Wearing compression stockings to promote venous return;
- Regular Doppler monitoring ;
Anticoagulant treatment in case of associated phlebitis.
Endovascular treatment
When the compression is marked, the treatment consists of reopening the compressed iliac vein using a minimally invasive approach.
Steps of the intervention:
- Introduction of a catheter into the femoral vein under local anesthesia;
- Dilation of the vein using a balloon;
- Placement of a venous stent (small metallic prosthesis) to keep the vein open and restore normal circulation.
This procedure, performed under radiological control, is painless and allows for an immediate resumption of activities .
Post-operative follow-up
- Temporary anticoagulant treatment;
- Ultrasound monitoring at 1 month, 6 months, then annually;
- Regular clinical monitoring by the vascular surgeon.
Links with other venous pathologies
Cockett syndrome is often the cause of chronic venous disorders:
- Recurrent varicose veins despite laser treatment or sclerotherapy;
- Unexplained phlebitis in one leg;
- Chronic edema or persistent feeling of heaviness.
A combined approach to varicose veins and pelvic compression is essential to prevent recurrence.
Consult a vascular surgeon
Dr. Seban consults at the Pays de Savoie Private Hospital
19 avenue Pierre Mendès France, 74100 Annemasse.
Video conference consultations are also possible.
Restoring normal circulation through targeted care
Thanks to advances in endovascular surgery , Cockett syndrome can now be treated effectively , safely and sustainably .
Early detection and appropriate intervention can relieve symptoms and prevent venous recurrences .