“…fro m 30) fo u n d it in as m u ch as 2 6 % o u t o f all deceased p e rso n s s u b je c te d to p o s tm o rte m e x a m in a tio n , a n d in 1 4% it was th e im m e d ia te cau se of d e a th . I n tr a v ita l d iag n o sis o f p u lm o n a ry em bolism is d iffic u lt. C lin ical, fluoroscopic a n d E C G s y m p to m s [6,7,13,14,15,16,20,25,26,30,32,34,35,41] a re v e ry o fte n h id d e n in sy m p to m s o f o th e r c a rd io v a s c u la r or p u lm o n a ry diseases. C h a ra c te ristic fu n c tio n a l ch an g es in th e lesser c irc u la tio n a n d in re s p ira tio n , p re se n t in p a r tia l occlusion o f th e p u lm o n a ry a rte ria l b e d , m a y be o f v alu ab le help fo r th e d ia g nosis of th is im p o r ta n t d iso rd e r.…”