Pregnant people assigned female at birth with Klippel-Trenaunay Syndrome (KTS) may experience feelings of anxiety and be overwhelmed about the potential effects of their condition on both themselves and their unborn child. You are never alone, and the good news is that people who suffer from KTS have safe, healthy pregnancies with the proper care. In order to ensure that you feel empowered and confident throughout your journey, we are here to help people navigate the risks, factors and best practices. 

Introduction: what is klippel-trenaunay syndrome?

Klippel-Trenaunay syndrome (KTS) is a rare congenital defect. Three key characteristics are involved, and it often affects one leg:

• A birthmark that is flat, red, or purple on the skin (also known as a port-wine stain)
• The afflicted leg may enlarge or, in rare instances, contract
• Veins that are abnormally dilated, usually on the affected leg's side

A variety of blood vessel types are affected by KTS, primarily capillaries, veins, and lymph vessels, but not arteries. Blood flow between veins and arteries is not significantly aberrant.

Typically, treatment is non-surgical, and symptom management is the main goal. Compression clothing, such as tight stockings, is frequently worn to aid blood flow and lessen swelling. Stains from port wine can be lightened using laser therapy.

In order to thoroughly examine the veins and ensure that the deep veins are functioning properly, doctors perform imaging testing prior to any procedures. Options for treatment differ from person to person and may include:

• Sclerotherapy is the process of injecting medication into the veins to seal them
• Vein sealing using heat (endovenous ablation)
• The most typical way is to remove troublesome veins through surgery (stripping or phlebectomy)

Within surgery, a tourniquet may be used to stop bleeding. Sometimes, in order to prevent blood clots from travelling to the lungs, a specific filter is inserted into the large vein, also known as the inferior vena cava. As KTS is known to be a complex condition, care from a variety of specialists is frequently required.

The typical physiological changes in blood pressure, volume and clotting factors that occur during pregnancy might exacerbate pre-existing vascular problems; hence, care is extremely crucial.¹

General pregnancy risks in KTS

 KTS involves different additional risks due to the syndrome's etiology, which includes vascular abnormalities, venous varicosities, and limb hypertrophy. Pregnancy-related physiological changes, such as elevated blood volume and venous pressure, raise these risks. The following are some of the main risks:

1. Exacerbation of the symptoms - The pre-existing   KTS symptoms can be considerably exacerbated during pregnancy. As the patient's pregnancy proceeds, for instance, she may experience swelling and growing varicosities in her
2. Increased Thrombosis Risk: Pregnancy makes KTS patients much more susceptible to venous thrombosis, which they already have. Thrombosis or thromboembolism may result from hormonal and blood flow changes that occur during pregnancy. Preventive anticoagulation, like low molecular weight heparin (LMWH), is advised to reduce this risk starting in the second trimester and continuing postpartum. Additionally, it has been discovered that LMWH and micronised pure flavonoid extract work better together to lower thromboembolic events
3. Postpartum haemorrhage: The risk of severe bleeding during childbirth is increased when venous abnormalities, such as varicosities in the genitalia, are present. The patient in the case study had dilated and enlarged arteries, which caused significant bleeding from the episiotomy site. This demonstrates how bleeding can complicate both vaginal and caesarean deliveries
4. Delivery Mode Considerations: For any KTS patients, the mode of distribution needs to be customised. While the presence of abdominal or uterine varices can complicate a caesarean operation, vulvovaginal varicosities also provide concerns for vaginal delivery by raising the chance of haemorrhage. Consequently, it is necessary to carefully weigh the advantages and disadvantages. In order to rule out any neuraxial vascular abnormalities that would make regional anaesthesia more difficult, pre-delivery imaging is also advised, such as a spine MRI
5. Multidisciplinary Care: A multidisciplinary approach is crucial since controlling pregnancy in patients with KTS is complicated. Collaboration among obstetricians, anaesthesiologists, haematologists, and vascular surgeons is necessary to deliver the best possible treatment. The effective management of the described case demonstrates how important this strategy is to guarantee the health of both the mother and the foetus and to attain a positive result²

Pregnancy management of KTS

1. Preconception counselling: It is ideal for patients with KTS to have a multidisciplinary team evaluate them before becoming pregnant. In this instance, early risk identification and planning were clearly necessary, even if preconception counselling was not conducted. Prior to pregnancy, if at all possible, imaging tests (MRI, ultrasound) and past vascular histories (haemangioma, embolisation) should be examined
2. Compression Therapy: While compression therapy was not discussed directly in this case, the existence of venous varicosities and limb hypertrophy implies that graduated compression stockings may be useful, particularly for treating limb pain and venous return during pregnancy
3. Monitoring: Frequent MRIs and ultrasounds were performed on the patient to track any vascular abnormalities. Haemoglobin levels were monitored, and coagulation tests (PT, APTT) were conducted because of the severe anaemia. In order to rule out thrombus development, postpartum follow-up involved repeat MRI and Doppler ultrasonography. This was particularly important because the patient's right toes grew larger after birth. Therefore, this raised concerns about potential vascular problems
4. Blood thinners: In order to prevent thrombotic problems during pregnancy, the patient was prescribed low-molecular-weight heparin (LMWH). This is consistent with the typical recommendations for anticoagulation in comparable instances because KTS patients have a significant risk of developing deep vein thrombosis (DVT) and pulmonary embolism (PE)^3,4,5

Postpartum care for KTS patients

Patients with  KTS  suffer high postpartum risks, such as severe bleeding and thromboembolic consequences caused by underlying vascular malformations and coagulation abnormalities. During pregnancy and the postpartum phase, prophylactic anticoagulation with low-molecular-weight heparin is highly advised to reduce these risks, particularly for individuals with a history of thrombosis or coagulopathy. 

A healthy recovery depends on close observation, prompt action, and a multidisciplinary team that includes obstetricians, anaesthesiologists, vascular surgeons, and critical care specialists. The patient in the cited case, was discharged on the third day with continued anticoagulant therapy, had received the proper care, and had not suffered any more significant bleeding following surgery. This positive result emphasises the value of customised management, close monitoring, and coordinated care in promoting positive maternal health outcomes for KTS patients.^{[6] [7]}

Navigating pregnancy and postpartum with KTS

Being pregnant is a life-changing experience, and for those with KTS. It poses particular difficulties that call for assistance and careful preparation. Here's how to take care of your physical and mental health both during and after pregnancy:

• Hydration: Maintaining enough fluid intake helps support the overall vascular health
• Light exercise: engaging in a mild, doctor-recommended exercise improves the chances of circulation
• Leg Elevation: Elevating your limbs regularly helps reduce swelling and discomfort
• Emotional Wellness:  Engaging in relaxing activities can help reduce stress
• Support groups: joining support groups and connecting with others who undergo the same problem as you could help in providing emotional reassurance and practical advice
• Counselling: engaging in counselling with a professional therapist can assist in navigating fears, stress and any other postpartum challenges

Managing pregnancy with KTS requires a multidisciplinary team including obstetricians, haematologists, anaesthesiologists, and other specialists. In order to adjust care plans appropriately,  the team can assist in monitoring for any problems like haemorrhage or thrombosis.¹¹

Summary

In summary, safe pregnancies are possible for people with KTS,  but only with meticulous preparation and continuous, specialised care. The main hazards are postpartum haemorrhage, clot formation, and increasing varicosities. Results can be greatly enhanced by preconception counselling, anticoagulant medication, compression support, and imaging-guided birth planning. The foundation of effective maternal care in KTS cases is multidisciplinary teamwork prior to, throughout, and following pregnancy.⁸

FAQs

Is klippel-trenaunay syndrome genetic?

Most cases don't have a family history and happen occasionally. However, in rare cases, it might be genetically related to PIK3CA gene mutations.⁹

Does klippel-trenaunay syndrome worsen after getting pregnant?

Pain or swelling may temporarily intensify for some people, particularly postpartum, but long-term progression is not assured with proper care.

Should postpartum anticoagulation treatment be continued?

Yes, in order to reduce the risk of clotting, anticoagulation is frequently maintained for a few weeks after giving birth.¹⁰