Home Procedures Vascular Access Lines & Venous Sampling

Placement of Vascular Access Lines & Venous Sampling

Image-guided placement of PICC lines, Hickman catheters, implantable ports, and selective venous sampling procedures performed by Dr. Gurucharan S Shetty at Sparsh Hospitals Bangalore for safe, reliable long-term venous access.

Vascular Interventional Radiology

What is Vascular Access Lines & Venous Sampling?

Image-guided placement of central venous access devices provides safe, reliable long-term venous access for patients requiring prolonged intravenous therapy including chemotherapy, antibiotics, and total parenteral nutrition where repeated peripheral cannulation is impractical or damaging to veins. Ultrasound guidance during vein puncture and fluoroscopic confirmation of catheter tip position ensure a significantly lower complication rate compared to blind landmark-guided insertion. Selective venous sampling procedures use the same catheter-based techniques to localise hormone-secreting tumours with precision that cross-sectional imaging cannot achieve.

Who is This Procedure For?

Vascular access lines are recommended for patients who require reliable, repeated, or long-term intravenous access, as well as for selective venous sampling in endocrine diagnosis. This includes cancer patients undergoing chemotherapy who need multiple cycles of intravenous treatment over weeks to months, where PICC lines or implantable ports provide safe and consistent access. They are also indicated for individuals requiring long-term intravenous antibiotics, such as in cases of osteomyelitis, endocarditis, and other serious infections needing 4–8 weeks or more of therapy. Patients who require total parenteral nutrition (TPN), particularly those with bowel failure or malabsorption, also benefit from vascular access lines. Temporary central venous catheters are used for haemodialysis in patients who are starting or bridging dialysis. Additionally, these lines are used for specialised diagnostic procedures such as adrenal vein sampling to distinguish between unilateral and bilateral primary hyperaldosteronism (Conn's syndrome), and inferior petrosal sinus sampling to differentiate pituitary from ectopic ACTH sources in Cushing's syndrome.

Types of Vascular Access Devices

  • PICC Line

    Peripherally Inserted Central Catheter inserted via the antecubital vein under ultrasound guidance, advanced to the superior vena cava. Used for weeks to months for chemotherapy, antibiotics, or TPN.

  • Tunnelled Central Venous Catheter

    Hickman or Broviac catheter tunnelled under skin from the jugular or subclavian vein to a chest exit site. Preferred for haematology patients and bone marrow transplant recipients needing months of access.

  • Implantable Port (Port-a-Cath)

    Completely subcutaneous titanium/plastic reservoir implanted below the clavicle accessed through the skin with a special needle. No external components; lowest infection risk; allows normal bathing and swimming. Ideal for intermittent chemotherapy over years.

  • Adrenal Vein Sampling (AVS)

    Selective catheterisation of adrenal veins to collect blood samples before and after ACTH stimulation the gold standard for lateralisation of primary hyperaldosteronism.

  • Inferior Petrosal Sinus Sampling (IPSS)

    Bilateral simultaneous sampling from the inferior petrosal sinuses to measure ACTH gradients localises Cushing's disease to the pituitary or identifies ectopic source with high accuracy.

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Benefits of This Procedure

Ultrasound Guided

Real-time ultrasound guidance during vein puncture eliminates the 'blind' technique dramatically reducing complications including arterial puncture, haematoma, and pneumothorax.

Fluoroscopic Confirmation

Fluoroscopy confirms catheter tip at the optimal cavoatrial junction position ensuring effective drug delivery and preventing malposition complications.

Immediate Venous Access

Catheter is immediately available for infusion therapy after placement no waiting period.

Protects Peripheral Veins

Long-term central venous access prevents the scarring, phlebitis, and extravasation that occurs with repeated peripheral cannulation.

Frequently Asked Questions

A PICC line can remain in place for up to 12 months with proper care and regular flushing. An implantable port can remain for 5–10 years or more. Tunnelled catheters (Hickman) can last for years. The device is removed when no longer needed or if complications such as infection, thrombosis, or malfunction occur.
Local anaesthetic is thoroughly injected before any puncture, making the procedure comfortable. You may feel pressure during catheter placement but should not experience sharp pain. For port insertion, mild soreness at the incision site is expected for 3–5 days post-procedure, managed with simple analgesics.
Yes an implantable port has no external components, so you can shower, bathe, and swim normally. This is one of its greatest advantages over external catheters such as PICC lines (which must be protected from water) and Hickman catheters.
Adrenal vein sampling (AVS) is the gold standard for differentiating unilateral from bilateral primary hyperaldosteronism (Conn's syndrome). CT scan cannot reliably identify which adrenal gland is producing excess aldosterone particularly in patients with bilateral adrenal nodules. AVS provides precise lateralisation that determines whether surgical adrenalectomy (curative) or lifelong medical therapy is appropriate. It is technically demanding and best performed at specialised IR centres.
Image-guided placement has a very low complication rate. Minor risks include bruising or haematoma at the access site, and mild soreness after port insertion. Serious risks (each <1%) include pneumothorax (collapsed lung), arterial puncture, infection, and deep vein thrombosis. Dr. Shetty uses ultrasound guidance throughout to minimise all risks.
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Need Reliable Long-Term Venous Access?

Consult Dr. Gurucharan S Shetty at Sparsh Hospitals, Bengaluru for image-guided, safe central venous access placement tailored to your treatment needs.

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