Severe valve damage means the valve must be replaced and most often involves the aortic or mitral valve. It is also used to treat any valve disease that is life-threatening. Some patients may need more than one valve repaired or replaced.ou and your doctor will decide which type of valve is best for you. During valve repair or replacement surgery, the breastbone is divided, the heart is stopped, and blood is sent through a heart-lung machine. Because the heart or the aorta must be opened, heart valve surgery is open heart surgery.
Use your spatula to stir the beef around while it cooks, to ensure it cooks evenly. Lower the heat if the fat begins to splatter. Cook the minced beef over medium heat for 5 to 10 minutes or until no pink remains. Turn off the heat and use the slotted spoon to remove the beef from the skillet, setting it aside.se your spatula to stir the beef around while it cooks, to ensure it cooks evenly. Lower the heat if the fat begins to splatter. Cook the minced beef over medium heat for 5 to 10 minutes or until no pink remains. Turn off the heat and use the slotted spoon to remove the beef from the skillet, setting it aside.
  Answer   If frozen then a 4 lb. beef roast will cook faster. Put the oven up to 400 (lid on roaster) for 20 - 30 minutes and sear, then put the temperature down to â¦ 350 and cook 15 minutes per pound.  If the 4 lb. beef roast is thawed then sear as above and cook for 20 minutes per pound. to 5lb Joint 1Â½ to 2 hours 5 to 7 lb Joint 2 to 2Â½ hours 7 to 10lb Joint 2Â½ to 3 hours The beef can be taken out sooner if you prefer rare (bloody) meat. Tips for a better roast.