News | Stroke | March 27, 2019

Interventional radiologists may be key to expanding access to timely thrombectomies

New Stroke Training Model Improves Access to Life-Saving Care

March 27, 2019 — Training interventional radiologists to perform endovascular thrombectomies results in positive outcomes for patients experiencing stroke, according to a study presented at the Society of Interventional Radiology (SIR) Annual Scientific Meeting, March 23-28 in Austin, Texas.1 Expanding access to this treatment provides patients timely access to this gold-standard treatment.

“With a limited availability of providers, thrombectomy is only available to 2 to 3 percent of eligible patients in the United States,” said Kelvin Hong, M.D., FSIR, associate professor and division chief of interventional radiology at Johns Hopkins University. “Patients don’t plan where and when they have a stroke. Our model of training board-certified interventional radiologists can expand access to quality, evidence-based care, and reduce the lifelong disability associated with stroke.”

Thrombectomy — a treatment that clears a clogged artery in the brain — increases the survival rates among those suffering an acute ischemic stroke, reduces the likelihood of resulting disabilities and speeds function recovery. However, to gain these benefits, thrombectomies must be initiated and performed quickly. Many hospitals do not have providers available to perform these treatments and must transfer patients to a facility where they can get this care, losing valuable time.

To determine an efficient and sustainable way to expand access to thrombectomy, researchers from Johns Hopkins University developed an interventional radiology stroke team at Suburban Hospital, a community hospital in Montgomery County, Md., a suburb of Washington, D.C. The team consisted of four interventional radiologists who were specially trained by a neurointerventional radiologist for six months. The entire team was available 24 hours a day, seven days a week, with the neurointerventional radiologist helicoptered to the hospital for every case during this training period.

“We looked to change the dynamic in stroke care, where instead of transporting medically fragile patients, we brought in a specialist to perform this care and build the infrastructure necessary to provide this treatment to a community with limited stroke care resources,” said Ferdinand Hui, M.D., a neurointerventional radiologist and associate professor of radiology and radiological science at Johns Hopkins University. “In a situation where every minute counts, we wanted to design our program to provide the training and organization necessary to bring 24/7 highly trained stroke interventionalists online as quickly as possible.”

Once the interventional radiologists were conducting the treatments independently, researchers measured the technical success of the thrombectomies performed by the newly trained physicians in 35 stroke cases using the Thrombolysis in Cerebral Infarction (TICI) scale. They found no significant differences compared to the 2016 HERMES meta-analysis2 of endovascular thrombectomy outcomes performed by other practitioners, such as neurointerventional radiologists and neurosurgeons. Additionally, 14 percent mortality in the first 90 days after the procedure was similar to 15.3 percent 90-day mortality among patients at stroke centers evaluated through the Journal of the American Medical Association-published HERMES trial.3 The median interval from symptom onset to the point when blood flow was restored was 325 minutes, compared to 285 minutes in previous research.

Researchers plan to further evaluate the technical outcomes and time metrics in a second-year study, with a goal of further reducing the time to treat each patient by improving efficiency and optimization year over year.

A limitation of the study may be in whether hospitals of varying sizes and resources can reproduce the program with the same outcomes. The research team plans to re-evaluate the program after two years of data collection.

For more information: www.sirmeeting.org

Related Stroke Content

VIDEO: Creating and Operating a Mobile Stroke Unit

Northwestern Medicine Mobile Stroke Unit Delivers Life-Saving Care 30 Minutes Sooner

 

References

1. Abstract 294: Technical Outcomes and Early Experience of a Centrifugally-Trained Interventional Radiology Stroke Service.  Huh E., Hui F., Bhagat N., et al. SIR Annual Scientific Meeting, March 23–28, 2019. www.sirmeeting.org.

2. Goyal M., Menon B.K., van Zwam W.H., et al. Endovascular thrombectomy after large-vessel ischaemic stroke: a meta-analysis of individual patient data from five randomised trials. The Lancet, April 23, 2016. 

3. Saver J.L., Goyal M., van der Lugt A., et al. Time to Treatment With Endovascular Thrombectomy and Outcomes From Ischemic Stroke: A Meta-analysis. JAMA, Sept. 27, 2016. doi:10.1001/jama.2016.13647

Related Content

News | Contrast Media

June 23, 2022 — Supply chain disruptions have created critical shortages of Omnipaque (iohexol) and Visipaque (iodixanol ...

Time June 23, 2022
arrow
News | SIR

June 20, 2022 — SIR Foundation launched a program to enhance the scientific rigor of research into interventional ...

Time June 20, 2022
arrow
News | Interventional Radiology

June 17, 2022 — Parag J. Patel, MD, MS, FSIR, an interventional radiologist and professor of radiology at the Medical ...

Time June 17, 2022
arrow
News | Computed Tomography (CT)

June 16, 2022 — Xoran Technologies has recently received a patent for a modular computed tomography (CT) system assembly ...

Time June 16, 2022
arrow
News | Interventional Radiology

June 13, 2022 — The Society of Interventional Radiology (SIR) presented its highest honor, the SIR Gold Medal, to ...

Time June 13, 2022
arrow
News | Interventional Radiology

June 13, 2022 — As demand for minimally invasive surgery continues to grow, GE Healthcare is committed to helping ...

Time June 13, 2022
arrow
News | Virtual and Augmented Reality

May 24, 2022 — Activ Surgical, a digital surgery pioneer, today announced the successful completion of an Institutional ...

Time May 24, 2022
arrow
News | Radiology Business

April 15, 2022 — The American College of Radiology (ACR) has released the latest edition of the ACR Appropriateness ...

Time April 15, 2022
arrow
Feature | Artificial Intelligence | By Dave Fornell, ITN Editor

Artificial intelligence (AI) has found a unique niche to help automate the activation of acute care teams for pulmonary ...

Time January 19, 2022
arrow
News | Radiology Imaging

December 16, 2021 — Rayus Radiology, a leading national provider of advanced diagnostic and interventional radiology ...

Time December 16, 2021
arrow
Subscribe Now