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Percutaneous vascular access guided by color duplex sonography

F Wacker1, K J Wolf, F Fobbe

  • 1Department of Radiology, Benjamin Franklin University Hospital, Free University Berlin, Germany.

European Radiology
|January 1, 1997
PubMed
Summary

This study evaluated the use of color duplex sonography (CDS) to guide vascular punctures when traditional palpation methods failed or were not possible. A total of 165 CDS-assisted procedures were performed, and all were successful. The average number of attempts was 1.66 in cases where palpation had failed three times. The time taken for each procedure was similar to standard palpation-guided techniques. The study concluded that CDS is a reliable and efficient method for vascular access, especially in difficult conditions. It offers a fast and safe alternative when palpation is not viable.

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Area of Science:

  • Medical imaging techniques in clinical practice
  • Interventional vascular procedures
  • Diagnostic ultrasound applications

Background:

Medical professionals often rely on palpation to guide vascular access. However, this method may fail when pulses are absent or difficult to detect. Prior research has shown that palpation-guided techniques can be unreliable in such cases. That uncertainty drove the search for alternative methods. Color duplex sonography is widely used for diagnostic purposes. No prior work had resolved its utility in guiding actual punctures. This gap motivated the evaluation of CDS as a procedural aid. The study aimed to assess its effectiveness in challenging vascular access scenarios.

Purpose Of The Study:

The study aimed to assess the effectiveness of color duplex sonography in guiding vascular punctures. It focused on cases where palpation failed or was not possible. The researchers wanted to determine if CDS could serve as a reliable alternative. They considered both arterial and venous access in their evaluation. The motivation was to improve success rates in difficult puncture conditions. They also wanted to compare the time required for CDS-assisted versus palpation-guided techniques. The goal was to establish whether CDS could offer a faster and safer method. The study aimed to provide evidence for its clinical utility in vascular access.

Keywords:
vascular accessultrasound-guided proceduresclinical imaginginterventional techniques

Frequently Asked Questions

The study found a 100% success rate for CDS-assisted vascular punctures.

The average number of attempts was 1.66 in cases with three prior failures.

CDS was used to guide vascular punctures when palpation failed or was not possible.

The primary outcome was the success rate of CDS-assisted vascular punctures.

The study found no statistically significant difference in procedure duration.

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Main Methods:

The study used a prospective design to evaluate CDS-assisted vascular punctures. A total of 165 procedures were included in the analysis. These were performed after three failed palpation attempts or when no pulse was detectable. The researchers recorded the number of attempts and the time taken for each procedure. They compared these metrics with standard palpation-guided techniques. The primary outcome was the success rate of the CDS-assisted method. Secondary outcomes included the average number of attempts and procedure duration. The study followed a structured protocol to ensure consistent data collection.

Main Results:

All CDS-assisted vascular punctures in the study were successful. The average number of attempts was 1.66 in cases with three prior failures. The time taken for each procedure did not differ significantly from palpation-guided techniques. The success rate was 100% for CDS-assisted punctures. The comparison showed no statistical difference in duration between the two methods. The results suggest that CDS can be used effectively in difficult access situations. The average attempt count indicates a high level of efficiency. These findings support the use of CDS as a reliable alternative to palpation.

Conclusions:

The authors concluded that CDS-assisted vascular puncture is a fast and safe method. It is particularly useful when palpation is not possible or has failed. The study found no significant difference in duration compared to standard techniques. The success rate of 100% supports its clinical value. The average of 1.66 attempts in failed cases highlights its efficiency. The findings suggest that CDS can be used confidently in challenging conditions. The authors propose that it should be considered as an alternative to palpation. The study provides evidence for its effectiveness in vascular access procedures.

The authors suggest that CDS is a fast and safe alternative for difficult vascular access.