Point-of-care ultrasound use for vascular access assessment and cannulation in hemodialysis: A scoping review

Point-of-care ultrasound (POCUS) for access assessment and guided cannulation has become more common in hemodialysis units. The aims of this scoping review were to determine: circumstances in which renal nurses and technicians use POCUS; the barriers and facilitators; and evidence of the effects of POCUS in guiding assessment and cannulation. A search was conducted of CINAHL, Medline, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, and ProQuest, Trove and Google Scholar as grey literature sources. Of 1904 publications, 21 studies met inclusion criteria (11 full text and 10 abstracts). These included primary research publications (n = 5), clinical observational cohort studies (n = 5), case studies (n = 3), published guidelines (n = 2), and published position papers (n = 6). POCUS was used for: assessing arteriovenous fistula (AVF) maturation; identifying landmarks and abnormalities; assessing alternate cannulation sites; performing new AVF cannulation; performing difficult cannulation; increasing cannulation accuracy; performing cannulation through stents; and patient self-cannulation training. There were scant data on the barriers to, and facilitators of the use of POCUS, and a distinct lack of empirical evidence to support its use. These knowledge gaps highlight the need for further clinical studies, particularly randomized clinical trials, to test the effectiveness of POCUS in hemodialysis for assessment and guided cannulation.

Health professionals' lack of knowledge of central venous access devices: the impact on patients

BACKGROUND

the literature on the patient experience of living with a central venous access device (CVAD) is growing, but remains sparse. It suggests that patients accept having a CVAD as it should reduce episodes of repeated cannulations. However, a recent doctoral study found the reality did not live up to this hope.

AIM

the study objective was to uncover the global, cross-disease experience of patients with CVADs.

METHOD

an online survey was sent to an international sample of people living with CVADs.

FINDINGS

74 people from eight countries responded. Respondents corroborated the PhD findings: painful cannulation attempts continued after CVAD insertion because of a lack of clinical knowledge. Participants lost trust in clinicians and feared complications due to poor practice.

CONCLUSION

clinicians often lack the necessary skills to care and maintain CVADs. This leads to a negative patient experience.