DESCRIPTIONS OF THROMBOSIS PRIOR TO VIRCHOW
Recently, World Thrombosis Day (WTD) was celebrated on October 13,2020. In the last post, we saw why October 13 was celebrated as WTD. There is a lot of work which Virchow did on thrombosis and hence he was honoured by celebrating his birthday as WTD. But there were other people, who had also described thrombosis even before Virchow. The first probable reference was in 1271. Raoul of Normandy, a 20 year old man, developed unilateral oedema in his right ankle, which subsequently extended up to his thigh with no obvious symptoms in the contralateral leg. In 1576, Ambroise Pare first documented that blood could clot and congeal in a vein. He mentioned this in reference to superficial veins. “they (the varicose veins) often swell with congealed dryed blood and cause pain which is increased by going and compression.” Towards the end of the seventeenth century, childbirth as a cause of thrombosis was described. This may be because, at that time, there was shift from midwife doctors