Building Your Care Team and Family Planning for ATS

Managing Arterial Tortuosity Syndrome (ATS) is not a solo effort. Because the condition affects so many different parts of the body, it requires a “medical home” where multiple specialists work together. This team should ideally be based at a specialized center with deep experience in inherited aortopathies (conditions affecting the aorta) or rare connective tissue disorders ^[1][2].

Building Your Multidisciplinary Team

A comprehensive care team for ATS should include the following specialists, each focusing on a different aspect of the condition:

• Medical Geneticists: These experts coordinate the molecular testing needed to confirm the SLC2A10 mutations. They also help the family understand inheritance patterns and risks for other family members ^[3][4].
• Cardiologists (Pediatric or Adult): The cardiologist is often the “lead” on the team, performing serial echocardiograms and coordinating cross-sectional imaging (MRA or CTA) to track the aortic root and pulmonary arteries ^[2][5].
• Vascular Surgeons and Interventionalists: These specialists evaluate and treat severe narrowing (stenosis) or bulging (aneurysm) of the vessels ^[6][7].
• Ophthalmologists: Because ATS can cause significant eye issues like keratoconus or corneal thinning, a baseline ophthalmic assessment is appropriate, with follow-up intervals set by the eye specialist ^[8][9].
• Pulmonologists: A lung specialist is vital if the twisted arteries are pressing against the airways or if there is high blood pressure in the lungs (pulmonary hypertension) ^[10][11].
• Neurologists: A neurology consultation is important if there is a history of transient ischemic attacks (TIAs) or if imaging shows significant twisting of the arteries supplying the brain ^[12].

Genetics and Family Planning

ATS is an autosomal-recessive disorder. This means that a person with ATS inherited one pathogenic variant of the SLC2A10 gene from each parent ^[3][13].

• Recurrence Risk (Carrier Parents): If both parents are confirmed carriers of the mutation, each of their future pregnancies has a 25% chance of having ATS, a 50% chance of being a carrier, and a 25% chance of inheriting neither familial variant ^[3][14].
• Recurrence Risk (Adult with ATS): If an adult with ATS has a child, the reproductive risk depends entirely on the partner’s SLC2A10 status.
• Cascade Testing: Once a diagnosis is confirmed, “cascade testing” is recommended for at-risk relatives using the known familial variants. This involves testing siblings to see if they are carriers ^[4][13].
• Genetic Counseling: Families are strongly encouraged to meet with a genetic counselor. They can discuss reproductive options, such as preimplantation genetic testing (PGT) or prenatal diagnosis ^[3][14].

Prenatal Screening and Early Detection

With advances in imaging, it is sometimes possible to see clues of ATS before a baby is born.

• Antenatal Clues: A specialized prenatal ultrasound or fetal echocardiogram may show unusual elongation or “twisting” of the great arteries. However, ultrasound findings are nonspecific clues and are not a reliable way to diagnose or rule out ATS ^[3][14]. Definitive testing requires molecular analysis.
• A Call for Specialization: If ATS is suspected prenatally, the baby should be scheduled for delivery at a high-level medical center. This ensures that a specialized team—including neonatal cardiology and respiratory support—is ready to evaluate the newborn immediately after birth ^[3][14].

Vetting Your Doctors

When meeting with a new specialist, it is helpful to ask specific questions to gauge their familiarity with rare vascular conditions:

• “How many patients with inherited aortopathies (like Marfan or Loeys-Dietz) do you currently manage?”
• “Are you familiar with the specific vascular kinking and airway compression risks associated with ATS?”
• “Does this hospital have a multidisciplinary board or clinic where different specialists discuss complex cases?”
• “What is your protocol for coordinating care with my other specialists?” ^[1][15].

By surrounding yourself with an informed and communicative team, you can ensure that monitoring is thorough and that any changes in health are addressed quickly and expertly.