Peripheral venodisection: everything you need to know

Peripheral venodisection consists in a surgical process that aims to dissect the superficial vein of some limb or neck. With this, it is sought to introduce a catheter into light that can be short or reach the vena cava, or right atrium.

The access consists of a fully implantable venous access port, which means that provides patients with safe and permanent access to a vein.

Therefore, peripheral venodisection It is indicated in those situations in which it is necessary to maintain a channeled vein and the process cannot be achieved percutaneously.

They are often used in patients who need continuous administration of injectable drugs, such as those patients receiving chemotherapy. The procedure is also called phlebotomy.

Advantages of peripheral venodisection

The peripheral venodisection technique is an open surgical procedure. In the same process, the cephalic vein is opened and accessed.

Venodisection is a procedure that can be very favorable for the patient due to the following characteristics:

  • Long catheters can be introduced under direct vision of the vein.
  • Chemotherapy, total parenteral nutrition or hypertonic solutions may be administered.
  • The tip of the catheter can be placed in a central position of the vein.
  • Through the catheter, central venous pressure can be recorded.
  • Catheters can remain in place for long periods., even years.

Likewise, it is important to mention that when the tip can be placed in a thick vein or right atrium, professionals avoid the development of phlebitis and sclerosis.

Both diseases usually develop when these treatments are passedn through the injection of blood into a peripheral vein, using short catheters.

Read also: What are the causes of superficial thrombophlebitis?

Peripheral venodisection technique

The first thing to take into account for the correct execution of the technique is the patient's position. This depend on the place chosen to perform the method.

When it comes to adults, The region that is most often used is the anteromedial side of the arm in his third disc. Specifically, above the bend of the elbow. The goal is to address the basilica vein. Likewise, other frequented places are:

In the case that the patient is a minor, the process focuses on the internal saphenous in its origin. This means 1 centimeter above and in front of the internal or medial malleolus of the ankle.

It is essential to keep in mind that, if the patient's conditions allow it, The surgeon should always explain the procedure and obtain your consent before starting it.

After choosing the place where the procedure will take place, the patient will be placed in the proper position. If a venodisection is to be performed on the arm or deltopectoral groove, the arm will be abducted.

The professional must always wear the regulatory clothing, which will consist of a hat, mask, gown and sterile gloves.


Generally, the complications associated with this technique are based on the surgical procedure to be followed. In this way, we find surgical risks related to the essence of the catheter in situ or postoperative risks, which usually occur during the postoperative care itself.

First, the surgical complications are usually the following:

  • Impossibility or difficulty identifying or channeling a vein.
  • Venous tears or arterial lesions. In this case, there can be really serious consequences.
  • Rupture of the channeled vein, bruising or arterial ligation.
  • Difficulty passing the catheter.

Apart, Postoperative complications are based on the stay of the catheter in the vein.. This may occur due to lack of care or for a long time. The risks are as follows:

  • Thromboembolism.
  • Phlebitis: problem that arises when leaving the catheter inside the vein for a long time.
  • Pus accumulation at the site of the incision: this is usually due to infected bruises that, in the worst case, can lead to the development of a generalized sepsis.

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This is why good postoperative care is always essential. The professionals recommend keeping the catheter insulated with sterile gauze. Thus, bacterial colonization is avoided and remains fixed to prevent it from getting out during handling or when moving the patient.