MynxGrip vascular closure device use in pediatric neurointerventional procedures

Direct carotid artery access for neurointerventional procedures in infants

BACKGROUND

Femoral access is the primary route for neurointerventional procedures in children. However, endovascular treatment may not always be possible through a femoral approach, necessitating conversion to alternative access routes.

OBJECTIVE

To review the feasibility and safety of direct carotid puncture (DCP) in infants undergoing neuroendovascular interventions.

METHODS

We conducted a retrospective review of all infants who underwent DCP as the access route to treat neuroendovascular pathologies between January 2011 and January 2021. Patients' demographics, clinical presentation, imaging findings, and technical details were reviewed.

RESULTS

Between January 2011 and January 2021, five infants aged between 28 and 150 days underwent DCP out of 1129 neuroendovascular interventions performed in our institution (0.4%). All five infants (100%) were diagnosed with intracranial fistulas and were found to have severe tortuosity of the cervical arteries. DCP was performed as the initial access route in 2/5 patients and as crossover after a failed femoral attempt in 3/5 patients. DCP was performed under ultrasound guidance in all patients. Closure was performed by manual compression, without complications. Ultrasound showed patent cervical vessels in all patients at 3 months' follow-up.

CONCLUSION

Direct carotid access is a feasible and safe alternative route to treat neuroendovascular pathologies in infants and can be considered in cases of inaccessible or failed transfemoral access or in cases with severe arterial tortuosity in infants with intracranial fistulas.

Transarterial and transvenous access for neurointerventional surgery: report of the SNIS Standards and Guidelines Committee

The purpose of this publication is to provide a comprehensive review on the techniques and tools used for vascular access in neurointerventional procedures. Using published literature, we reviewed data on access methods, sites, tools, and techniques for neurointerventions. Recommendations are provided based on quality of data/levels of evidence and, where appropriate, expert consensus. While tools and techniques continue to be developed, current literature and experience supports certain principles regarding vascular access for neurointerventional procedures.

An update on the use of an arterial closure device following femoral arterial puncture in children

BACKGROUND

The use of arterial closure devices in achieving femoral hemostasis has been well documented in adults but insufficiently studied in the pediatric population. An earlier study from our institution of 40 Angio-Seal devices in 38 patients concluded that the arterial closure device is safe in children with only a single minor complication. Ongoing experience with this device at our institution, however, suggests a higher rate of complication.

OBJECTIVE

To retrospectively evaluate the safety and efficacy of the Angio-Seal in a pediatric population.

MATERIALS AND METHODS

A retrospective analysis reviewed all cases in which the Angio-Seal was deployed from June 2011 to September 2017. Peri-procedural documentation was reviewed for pre-procedure labs, clinical effectiveness in achieving hemostasis and complications related to the use of this device. Logistic regression analysis was also used to evaluate the relationship between patient demographic, vessel size and indication for angiography, and the presence or absence of complications.

RESULTS

During the study period, 48 additional Angio-Seal devices were deployed in 41 consecutive patients. Five patients were excluded for being older than 18 years. The mean age of the patients was 13.3 years (range: 4-18 years) with 18 patients female. The mean common femoral artery diameter was 5.98 mm in short axis diameter (range: 4-9 mm). Complications were present in 6/43 cases (14%) including 3 minor and 3 major complications that included additional procedures. No significant relationship was identified between vessel size, age and the indication for angiography, and the rate of complication on logistic regression analysis.

CONCLUSION

While percutaneous arterial closure devices can be efficacious for achieving hemostasis, our experience demonstrates a higher rate of complications in children, contrary to a previous report. The deployment of such devices should be performed with prejudice in this population.