Radiographic External Measurement Technique for TIVAP Placement

Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization

Status: Enrolling

Conditions: Vascular Access Device; Catherization

Treatments: Procedure: Chest X-Ray-Based External Measurement Method

Study type: Interventional

Funder types: Other

Identifiers

NCT07549035

6814288

Details and patient eligibility

About

Totally implantable venous access ports (TIVAPs) are commonly used in patients who need long-term intravenous treatment such as chemotherapy, parenteral nutrition, or repeated blood sampling. Correct placement of the catheter tip is important to reduce the risk of complications, including arrhythmia, thrombosis, catheter dysfunction, vessel injury, and infection.

Several methods are used to determine catheter tip position during port placement, including fluoroscopy, echocardiography, and chest X-ray. However, some of these methods may require additional equipment, increase procedure time, or may not be available in all hospitals.

This study aims to evaluate a simple chest X-ray-based external measurement method to estimate the appropriate catheter length before TIVAP placement. In this method, anatomical landmarks identified on a recent chest X-ray are used to calculate the expected catheter length, which is then applied during the procedure.

The main goal of the study is to assess how accurately this method places the catheter tip in the desired anatomical position. Secondary goals include evaluating the rate of optimal tip placement, procedure-related complications, and the relationship between predicted and actual catheter tip positions.

If successful, this method may provide a practical, low-cost, and widely applicable technique to improve TIVAP placement in routine clinical practice.

Enrollment: 120 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age 18 years or older
• Scheduled for elective totally implantable venous access port placement
• Available posterior-anterior chest X-ray obtained within the previous 3 months
• Ability to provide written informed consent

Exclusion criteria

• Known central venous stenosis or occlusion due to previous central venous catheter or port history
• Congenital heart disease
• Significant mediastinal anatomical abnormality or distortion
• Chest X-ray in which anatomical landmarks cannot be clearly identified
• Emergency port implantation
• Pregnancy (if required by local ethics policy)
• Refusal or inability to provide written informed consent

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

---

120 participants in 1 patient group

Chest X-Ray-Based External Measurement Group

Experimental group

Description:

Participants in this arm undergo totally implantable venous access port placement using a chest X-ray-based external measurement method to determine catheter length before implantation. Anatomical landmarks identified on a recent chest X-ray are used to estimate the target catheter length. Post-procedure chest X-ray is performed to assess final catheter tip position and procedural outcomes.

Treatment:

Procedure: Chest X-Ray-Based External Measurement Method