Newly Published Marchand Institute Analysis on mRNA Vaccination Validates Link Between mRNA Vaccines and Cardiac Mortality

August 3, 2023Laparoscopy, Laproscopy, Minimally Invasive Surgery, OBGYNBy Justin Clegg

FOR IMMEDIATE RELEASE

MESA, Ariz. — August 3, 2023

Just published today in Taylor & Francis’s prestigious journal, “Human Vaccines & Immunotherapeutics,” is a groundbreaking study on the safety of COVID19 mRNA vaccines. The study, the first of its kind on this subject, used statistical analysis to compare the risk of death and specifically the risk of death from cardiac causes (heart attacks, heart inflammation, etc. etc.) in the short period of time following the administration of the COVID19 mRNA vaccination on over 750,000 individuals. The study found a significant increase in cardiac-related deaths following the administration of the vaccinations. This connection was previously proposed by Dr. Joseph Ladapo, and was disputed by CDC officials including the commissioner (Robert M. Califf, MD) and director (Rochelle P. Walensky, MD). The study was led by Dr. Greg Marchand MD. Full Study: https://www.tandfonline.com/doi/full/10.1080/21645515.2023.2230828

About Dr. Greg Marchand

Greg J. Marchand, MD, FACS, FACOG, FICS, is a dual board-certified obstetrician-gynecologist and minimally invasive gynecologic surgeon practising in Mesa, Arizona. He holds the ABOG Focused Practice Designation in Minimally Invasive Gynecologic Surgery and directs the Marchand Institute for Minimally Invasive Surgery, a 501(c)(3) tax-exempt non-profit research and educational corporation (EIN 42-2857240). He is Program Director of an SLS-accredited fellowship in Minimally Invasive and Robotic Gynecologic Surgery, holds three issued United States patents, and has served as Principal Investigator on eight FDA clinical trials. His systematic reviews are prospectively registered with PROSPERO, reported to PRISMA standards and appraised with the Cochrane Risk of Bias 2 tool. He accepts no industry funding for his research.

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Newsroom and press kit · Full publication list · Research methodology · Expert commentary topics

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February 20, 2026

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February 5, 2026

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January 29, 2026

Newest Paper on Laparoscopic Single Site Ovarian Cystectomy Online Now!
January 1, 2026

“I delivered both my beautiful babies with Dr. Marchand and I wouldn’t have it any other way! Every doctor visit up until I was in labor was great, he took all the time to answer all my questions. I didn’t feel rushed in and rushed out of the office. The office was always very clean! The staff were always very friendly. When I was in labor he made sure my birth plan was the most important thing! He always had my best interest in hand! My first delivery I was induced and it took 3 long days and Marchand kept checking on me all hours of the night!! If I did it all over again I’d definitely use Marchand as my OB again!”

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Alex S.
“We congratulate Dr. Greg J. Marchand as SRC’s first Surgeon of Excellence in Minimally Invasive Surgery (SOEMIS) in the United States. To achieve SOEMIS accreditation, Dr. Marchand invited SRC to complete a rigorous onsite inspection and thorough chart review to illustrate his compliance with the program. Dr. Marchand and his practice exemplify SRC’s commitment to patient safety and care.”

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Ashley DuBray, Senior Director of the Surgical Review Corporation
“I initially met Dr. Marchand upon an emergency room visit due to complications during my first pregnancy. My husband and I had recently moved from out of state. Not knowing many people here, in a scary situation and finding myself hospitalized was made a lot easier once we met Dr. Marchand who we decided would be the best doctor to see my care through the pregnancy and ultimate c-section. He always had time for our questions even when we knew he had many other patients. He did a great job with the surgery and follow up care and was very pleasant, patient and professional throughout the process. When we decided to have another baby, he saw us through another pregnancy and c-section and continues to be my OB of choice. I would recommend him in a heartbeat to any girlfriends I know.”

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Megan E. of Gilbert, AZ
“Growing up I have had my fair share of woman health issue from Endometriosis, PCOS, Severe Pelvic Pain, Loss of Pregnancy and Infertility and more pelvic surgeries than I can count. I have seen many different doctors till about 6-7 years ago when I needed emergency surgery and met Dr. Marchand and now I refuse to go to any one else. With the many issues I have had both Dr. Marchand as well as his whole office staff have been so helpful I couldn’t be more grateful. It’s very hard to find an honest, trustworthy doctor these days but rest assured you can’t go wrong with Dr. Greg Marchand. They are open late and almost always can fit you into the schedule for emergencies and you can always reach him no matter what time it is if you have questions. Dr. Marchand is an amazing surgeon and loves what he does. He has delivered many friends and family’s children and hope that one day he will be able to deliver mine as well.”

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Tomi M. of Gilbert