1856

Publication of Paul Broca’s On Aneurysms and Their Treatment (931 pages in length), “one of the last books in the classical manner as well as one of the first modern monographs on a relatively limited subject.”  Broca added novel concept: Broca’s “active [i.e., good, hard fibrous, organized thrombus] and passive [i.e., soft product of mere clotting] clot.”  He hailed Bellingham’s “indirect compression” – bearing down on the feeding artery through the intact tissues to produce an “active clot” through decreased blood flow to the lesion (Schiller, 106-110; quotes at 107).