Holly Ruth Middlekauff MD

Professor, Medicine (Cardiology) and Physiology, UCLA David Geffen School of Medicine; Assistant Dean for Student Affairs, UCLA David Geffen School of Medicine

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200 Medical 420 120 530 Plz# 365Los Angeles, CA 90095
Phone+1 310-206-6672
Fax+1 310-825-9014

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Education & Training

UCLA David Geffen School of Medicine/UCLA Medical CenterFellowship, Cardiovascular Disease, 1989 - 1992
UCLA David Geffen School of Medicine/UCLA Medical CenterResidency, Internal Medicine, 1986 - 1989
Keck School of Medicine of the University of Southern CaliforniaClass of 1986

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Certifications & Licensure

CA State Medical License 1988 - 2027
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Cardiovascular Disease

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory - Core EMR, Epic Systems Corporation, 2014-2017
CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014-2017
CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014-2017

Clinical Trials

Acupuncture in Cardiovascular Disease
COMPLETED
PHASE2
Using Clonidine to Improve Leg Weakness in People With Heart Failure
COMPLETED
PHASE4
E-Cigarettes and SNA
COMPLETED
NA

Publications & Presentations

PubMed

Cannabis Is Associated With Potentially Proatherogenic Inflammation in Youth.
Theodoros Kelesidis, Leila Fotooh Abadi, Pratik Lama Tamang, Katherine Hampilos, Reece Fong
Circulation Research. 2026-08-14
Primary Cardiac Angiosarcoma Leading to Tamponade and Fatal Right Atrial Rupture.
Katherine E Makaroff, Katherine Hampilos, Sammy Sayed, Benjamin Emert, Xuchen Hu
JACC. Case Reports. 2026-07-22
1 citations
Ventricular Repolarization in Healthy Young Adults Who Use Combusted Cannabis: A Cross-Sectional Parallel Group Comparison Study.
Katherine Hampilos, Reece Fong, Joshua Sanchez, Isabelle Ruedisueli, Samuel Lopez
Journal of the American Heart Association. 2025-08-05

Lectures

Vaping: What Every Cardiologist Needs to Know
2019 ACC Scientific Session & Expo, New Orleans - 3/18/2019

Press Mentions

E-cigarettes Linked to Lower Cardiac Risks Compared to Tobacco Cigarettes in People with HIVMarch 19th, 2025
UCLA Health Expert on the Rise and Hidden Health Risks of Blunt SmokingOctober 16th, 2024
Science Shows How a Surge of Anger Could Raise Heart Attack RiskMay 1st, 2024

Grant Support

Sympathoexcitatory Effect Of Tobacco In Premenopausal WomenNational Center For Research Resources2010
Cardiac Resynchronization Therapy And The Skeletal Myopathy Of Heart FailureNational Center For Research Resources2010
The Effect Of Smoking On The Pattern Of Neural Sympathetic Outflow In PremenopauNational Center For Research Resources2009–2010
Clionidine And The Skeletal Myopathy Of Heart FailureNational Center For Research Resources2009–2010
Sympathetic Nerve Activity And The Skeletal Myopathy Of Heart FailureNational Heart, Lung, And Blood Institute2007–2010