Armande Case of Lewiston walks with two of her six children during the American Heart Association Start! Heart Walk in Lewiston on Sunday morning. Case, 78, had open heart surgery and an aortic valve replacement in March 2003 and walked her first heart walk that following September. Joining Case during her sixth heart walk are her daughters Sue Littlefield, left, of Mechanic Falls, and Deanna Wall of Lewiston. Despite the rain, at least 1,000 people participated in Sunday’s walk, said Brenda Quinn, communications director for the American Heart Association of Maine. Organizers set a goal to raise $185,000 for the fight against cardiovascular disease, the number one killer of men and women in Maine.