Ehrin J. Armstrong, MD, MSc, FACC

The application of 2 distinct and simultaneously applied drug-delivery platforms for the treatment of peripheral artery disease has not been studied. This study investigated the outcomes of femoropopliteal disease treated with drug-coated...

The application of 2 distinct...

06/01/2022

Journal of Invasive Cardiology

Case Report

The Nature of Dissections in Infrapopliteal Arteries: Insights from Intravascular Ultrasound Imaging

06/10/2020

Gail A. Shammas , BSN, BS , RN, BSc;

Ehrin J. Armstrong , MD, MSc, FACC;

Waheeb John Shammas , BS, MBA, RA, BA;

Qais Radaideh , MD, MS;

Nicolas W. Shammas , MD, MS, FACC, FSCAI, FACP, FSVM;

Shammas and colleagues discuss how treatment of infrapopliteal arteries can be challenging due to the presence of medial calcinosis and fibrotic rings.

Shammas and colleagues discuss...

06/10/2020

Cath Lab Digest

Original Contribution

Procedural and 3-Year Outcomes of Peripheral Vascular Interventions Performed in Office-Based Labs: LIBERTY 360 Sub-Analysis

05/01/2021

George Pliagas , MD, FACS, FRCSC;

Stefanos Giannopoulos , MD;

Ehrin J. Armstrong , MD, MSc, FACC;

Few data are available on the safety of interventions for peripheral arterial disease performed in the office-based laboratory (OBL) setting. Thus, the aim of this study was to investigate the short- and late-term outcomes of patients treated...

Few data are available on the...

05/01/2021

Journal of Invasive Cardiology

Original Contribution

Contemporary Use of Laser During Percutaneous Coronary Interventions: Insights from the Laser Veterans Affairs (LAVA) Multicenter Registry

03/15/2018

Subhash Banerjee , MD, FSCAI;

Aris Karatasakis , MD;

Barbara Anna Danek , MD;

Aya J. Alame , BA;

Judit Karacsonyi , MD, PhD;

José Roberto Martínez-Parachini , MD;

Michele Roesle , RN, BSN, MD;

Houman Khalili , MD;

Bavana V. Rangan , BDS, MPH, MD;

Ehrin J. Armstrong , MD, MSc, FACC;

Imre Ungi , MD, PhD;

Emmanouil S. Brilakis , MD, PhD, FACC, FAHA, FESC, FSCAI;

Huu Tam D. Truong , MD;

Ryan Tsuda , MD;

Damianos G. Kokkinidis , MD;

We examined the baseline clinical and angiographic characteristics and procedural outcomes of 130 target lesions in 121 consecutive PCIs (n = 116 patients) in which excimer laser coronary atherectomy was performed at three United States...

We examined the baseline...

03/15/2018

Journal of Invasive Cardiology

Original Contribution

Comparative Effectiveness Study of Drug-Eluting and Bare-Metal Peripheral Artery Stents in Endovascular Femoropopliteal Artery Revascularization

09/30/2018

Osvaldo S. Gigliotti , MD;

Haekyung Jeon-Slaughter , PhD;

Shirling Tsai , MD;

Omar Jawaid , MD;

Ehrin J. Armstrong , MD, MSc, FACC;

Hua Lu , MD;

Nicolas W. Shammas , MD, MS, FACC, FSCAI, FACP, FSVM;

Tayo Addo , MD;

Houman Khalili , MD;

Subhash Banerjee , MD, FSCAI;

Mazen S. Abu-Fadel , MD;

This study compared clinically driven target-lesion revascularization, target-vessel revascularization, and target-limb revascularization outcomes at 1 year between drug-eluting stent and bare-metal stent treatments in a real-world setting.

This study compared clinically...

09/30/2018

Journal of Invasive Cardiology

Clinical Images

Orbital Atherectomy in the Renal Artery: A New Frontier for an Emerging Technology?

12/31/2016

Ehrin J. Armstrong , MD, MSc, FACC;

Stephen Waldo , MD;

Javier A. Valle , MD, MSc;

This case demonstrating the safe and effective use of orbital atherectomy in the renal vasculature suggests an opportunity for ongoing evaluation into expanded roles for this technology beyond the coronary and lower-extremity arterial...

This case demonstrating the safe...

12/31/2016

Journal of Invasive Cardiology

Original Research

Concomitant Drug-Coated Balloon Angioplasty With Bail-Out Use of Eluvia Drug-Eluting Stent: Is There Any Downside to a Double Dose of Paclitaxel?

08/01/2022

Eric A. Secemsky , MD, MSc, RPVI, FACC, FAHA, FSCAI;

Ehrin J. Armstrong , MD, MSc, FACC;

Stefanos Giannopoulos , MD;

Peripheral artery disease (PAD) of the lower extremities is frequently due to atherosclerotic lesions of the femoropopliteal artery, which may result in disabling claudication and rest pain with or without tissue loss. More than 50% of the...

Peripheral artery disease (PAD)...

08/01/2022

Cath Lab Digest

Peripheral Arterial Disease

Crossing Peripheral Chronic Total Occlusions Efficiently With the Crosser iQ™ CTO Recanalization System

06/02/2022

Ehrin J. Armstrong , MD, MSc, FACC;

I am an interventional cardiologist at Adventist Heart and Vascular Institute. We have an extensive practice focused on limb salvage and limb preservation in patients with advanced peripheral artery disease (PAD). This includes patients with...

I am an interventional...

06/02/2022

Cath Lab Digest

Original Contribution

Clinical Characteristics and Reperfusion Times Among Patients With an Isolated Posterior Myocardial Infarction

07/30/2013

James M. McCabe , MD, FACC;

Ehrin J. Armstrong , MD, MSc, FACC;

Stephen Waldo , MD;

Ameya Kulkarni , MD;

Kurt S. Hoffmayer , MD;

Priscilla Hsue , MD;

Peter Ganz , MD;

An isolated PMI is associated with significant morbidity and mortality. And because physicians often fail to recognize this diagnosis, there may be delays in the timely revascularization of these patients. The present study sought to identify...

An isolated PMI is associated...

07/30/2013

Journal of Invasive Cardiology