PT - JOURNAL ARTICLE AU - Renato B. Berroya AU - Fernando B. Escano, Jr. TI - Mitral disc-valve variance AID - 10.1136/thx.27.1.87 DP - 1972 Jan 01 TA - Thorax PG - 87--89 VI - 27 IP - 1 4099 - http://thorax.bmj.com/content/27/1/87.short 4100 - http://thorax.bmj.com/content/27/1/87.full SO - Thorax1972 Jan 01; 27 AB - This report deals with a rare complication of disc-valve prosthesis in the mitral area. A significant disc poppet and struts destruction of mitral Beall valve prostheses occurred 20 and 17 months after implantation. The resulting valve incompetence in the first case contributed to the death of the patient. The durability of Teflon prosthetic valves appears to be in question and this type of valve probably will be unacceptable if there is an increasing number of disc-valve variance in the future.