Skip to Content
800-533-8762
  • Careers
  • Newsroom
  • Health Care Professionals
  • About Us
  • Contact Us
UPMC
  • Find a Doctor
  • Services
    • Frequently Searched Services
    • Frequently Searched Services
      Allergy & Immunology Behavioral & Mental Health Cancer Ear, Nose & Throat Endocrinology Gastroenterology Heart & Vascular Imaging Neurosciences Orthopaedics
      Physical Rehabilitation Plastic & Reconstructive Surgery Primary Care Senior Services Sports Medicine Telemedicine Transplant Surgery Walk-In Care Weight Management Women’s Health
      See all Services
    • Services by Region
    • Find a UPMC health care facility close to you quickly by browsing by region.
      UPMC in Western Pa. Western Pa. and New York
      UPMC in Central Pa. Central Pa.
      UPMC in North Central Pa. North Central Pa.
      UPMC in Western Md. Maryland & West Virginia
    • See All Services
  • Locations
    • Locations by Type
    • Locations by Type
      UPMC hospitals
      Hospitals
      Physical Therapy
      Physical Therapy
      Urgent care
      Walk-In Care
      UPMC Outpatient Centers
      Outpatient Centers
      UPMC Imaging Services
      Imaging
      Community Health Centers
      Community Health Centers
      See All Locations
    • Locations by Region
    • Locations by Region
      UPMC in Southwest Pa. Southwest Pa.
      UPMC in North Central Pa. North Central Pa.
      UPMC in Northwest Pa and Ny. Northwest Pa. & Western N.Y.
      UPMC in West Central Pa. West Central Pa.
      UPMC in Central Pa. Central Pa.
      UPMC in Western Md. Maryland & West Virginia
    • See All Locations
  • Patients & Visitors
    • Patient & Visitor Resources
    • Patient & Visitor Resources
      Patients and Visitors Resources Pay a Bill Classes & Events Medical Records Health Library Patient Information
      Patient Portals Privacy Information Shared Decision Making Traveling Patients Visitor Information
      Man uses mobile phone
      Pay a Bill
      Nurse reviews medical chart
      Request Medical Records
  • Patient Portals
  • Find Covid-19 updates
  • Schedule an appointment
  • Request medical records
  • Pay a bill
  • Learn about financial assistance
  • Find classes & events
  • Send a patient an eCard
  • Make a donation
  • Volunteer
  • Read HealthBeat blog
  • Explore UPMC Careers
Skip to Content
UPMC
  • Patient Portals
  • For Patients & Visitors
    • Find a Doctor
    • Locations
    • Patient & Visitor Resources
    • Pay a Bill
    • Services
    • More
      • Medical Records
      • Financial Assistance
      • Classes & Events
      • HealthBeat Blog
      • Health Library
  • About UPMC
    • Why UPMC
    • Facts & Stats
    • Supply Chain Management
    • Community Commitment
    • More
      • Financials
      • Support UPMC
      • UPMC Apps
      • UPMC Enterprises
      • UPMC International
  • For Health Care Professionals
    • Physician Information
    • Resources
    • Education & Training
    • Departments
    • Credentialing
  • Careers
  • Contact Us
  • Newsroom
  • UPMC >
  • Our Services >
  • Heart & Vascular >
  • ... >
  • About Us >
  • Patient Stories >
  • Heart Valve Disease >
  • Dan Demarines
Heart & Vascular
About Us
Awards & Recognition
Your Care Team
Classes, Events, & News
Giving
Patient Stories
Heart Disease
Heart Rhythm Disorder
Heart Transplant
Heart Valve Disease
Pulmonary Hypertension
Vascular Conditions
Ventricular Assist Device (VAD)
Conditions We Treat
Our Services
For Patients
For Professionals & Students
Our Locations
Contact Us
Heart & Vascular
About Us
Awards & Recognition
Your Care Team
Classes, Events, & News
Giving
Patient Stories
Heart Disease
Heart Rhythm Disorder
Heart Transplant
Heart Valve Disease
Pulmonary Hypertension
Vascular Conditions
Ventricular Assist Device (VAD)
Conditions We Treat
Our Services
For Patients
For Professionals & Students
Our Locations
Contact Us

Chat Keywords List

  • cancel or exit: Stops your conversation
  • start over: Restarts your current scenario
  • help: Shows what this bot can do
  • terms: Shows terms of use and privacy statement
  • feedback: Give us feedback
Continue
Chat with UPMC
RESTART
MENU
CLOSE

Dan Demarines: Mitral Valve Prolapse

Dan Demarines - Mitral Valve Prolapse (MVP) Patient Story

The Challenge: Mitral Valve Prolapse and an Abnormal Heart Rhythm

Nearly three years ago, Dan Demarines couldn’t get to sleep. He lay awake in his bed, heart pounding and short of breath. His chest pain seemed to amplify when he would lie down, so he slept upright.

For this 63-year-old retired school principal, sleep was anything but refreshing.

“I was having chest pains — some pretty severe — but when I would lie down to sleep, my heart sounded like someone banging a drum,” he says. “I could barely sleep and it was really starting to scare me.”

Dan went to his primary care doctor who diagnosed him with an abnormal heart rhythm caused by premature ventricular contractions, or PVCs. This form of heart palpitation is commonly associated with mitral valve disorders such as mitral valve prolapse (MVP), a condition where the valve between the heart's left upper chamber and left lower chamber doesn't close properly. He referred Dan to cardiologist Dr. William Barrington who performed a catheter ablation — a special procedure that delivers energy through a catheter to tiny areas of the heart that might cause these PVCs. The energy “disconnected” the pathways of the abnormal rhythm.

Following the procedure, Dan felt much better, and was quickly back to his normal routine.

But around a year-and-a-half later, Dan’s discomfort returned, along with his shortness of breath and palpitations. Only now, the symptoms were worse.

The Path to UPMC's Heart and Vascular Institute

Dan’s cardiologist referred him to the team at the UPMC Heart and Vascular Institute's Center for Mitral Valve Disease, where he was immediately diagnosed with a severe form of MVP.

According to UPMC's experts, MVP is often harmless until the valve begins to leak. In Dan’s case, the valve was causing blood to leak severely from his heart's lower left chamber back into the upper left chamber. Dan's doctors advised him to consider surgery to repair his valve as soon as possible.

The Solution: Minimally Invasive Robotic Surgery

Dan's team of cardiovascular specialists performed robotic surgery to repair his mitral valve.

Instead of using the traditional approach — where the surgeon makes an incision down the front of the chest and through the breastbone — Dan's surgeon made a small, two inch incision in his right chest and four small openings less than the size of a fingernail to provide robotic access.

The surgeon and his expert team were then able to perform extensive repair to Dan’s heart valve without harming important tissue and muscle surrounding the heart.

The Result: Feeling Like A New Man

With surgery, Dan experienced an immediate improvement. Just two months after surgery, Dan was back to doing what he did before his heart complications, and wasn’t afraid to push his limits.

“I felt like a new person,” he says. “I was exercising a lot, and even went to Hawaii and hiked up a mountain. My doctor probably wouldn’t have liked that I was doing that so soon after surgery, but it was so beautiful — and I felt like I was back at 100 percent.”


Dan's treatment and results may not be representative of similar cases.

Read more Heart Valve Disease patient stories


Learn More About Mitral Valve Disease

 UPMC Heart and Vascular Institute:

  • Mitral Valve Disease 

From our Health Library:

  • Mitral Valve Prolapse
  • Angioplasty for Heart Disease (Video)
UPMC
200 Lothrop Street Pittsburgh, PA 15213

412-647-8762 800-533-8762

Patients And Visitors
  • Find a Doctor
  • Locations
  • Pay a Bill
  • Patient & Visitor Resources
  • Disabilities Resource Center
  • Services
  • Medical Records
  • No Surprises Act
  • Price Transparency
  • Financial Assistance
  • Classes & Events
  • Health Library
Health Care Professionals
  • Physician Information
  • Resources
  • Education & Training
  • Departments
  • Credentialing
Newsroom
  • Newsroom Home
  • Inside Life Changing Medicine Blog
  • News Releases
About
  • Why UPMC
  • Facts & Stats
  • Supply Chain Management
  • Community Commitment
  • Financials
  • Supporting UPMC
  • HealthBeat Blog
  • UPMC Apps
  • UPMC Enterprises
  • UPMC Health Plan
  • UPMC International
  • Nondiscrimination Policy
Life changing is...
Follow UPMC
  • Contact Us
  • Website/Email Terms of Use
  • Medical Advice Disclaimer
  • Privacy Information
  • Active Privacy Alerts
  • Sitemap
© 2025 UPMC I Affiliated with the University of Pittsburgh Schools of the Health Sciences Supplemental content provided by Healthwise, Incorporated. To learn more, visit healthwise.org
Find Care
Providers
Video Visit
Portal Login