This is a Message Board Post that is gatewayed to this mailing list. Author: RonLankshear Surnames: Classification: queries Message Board URL: http://boards.rootsweb.com/surnames.shaw/6673.1/mb.ashx Message Board Post: My father's grand mother was a Shaw from Oxfordshire in UK. My father died of pulmonary embolism caused by clots in leg (DVT). In 2001 I had same problem and survived. My hematologist established that I had a blood disorder Protein C deficiency. At the time before this was established I was medicated with warfarin to prevent thrombosis. But warfarin lowers Protein C so I had more clots. I am now on daily injection of Clexane a form of Heparin. Have them check for that. It is not a common condition. Important Note: The author of this message may not be subscribed to this list. If you would like to reply to them, please click on the Message Board URL link above and respond on the board.