About Trident Cardiology Associates. Trident Cardiology Associates, PA, has served people in the Lowcountry region for more than 30 years. They look forward to a long future of providing an exceptional level of kind, compassionate, and quality heart care to the communities of Ladson, Walterboro, and Moncks Corner, South Carolina.Providers‧Services‧Resources‧Locations‧Stress Tests‧Echocardiography.