Bamberger's Sign

BAMBERGER'S SIGN (Bamberger), observed in exudative pericarditis, consists of a change in the percussion tone in the interscapular space, closer to the inner edge of the scapula, when the patient bends forward, when the fluid shifts in the pericardial sac to the anterior wall; as a result, the muffling effect of the fluid decreases and a normal lung sound is obtained upon percussion. B ANG, Ivar (Ivar Bang, 1869-1918), Norwegian biochemist who gained wide fame for the micro-methods of blood research he introduced (see Bang's micro-methods). Graduated from the medical faculty in Kristiania in 1895; in 1896-97 B. studied analytical chemistry with Fresenius in Wiesbaden, and in 1897-99 physiological chemistry with Hammarsten in Uppsala. In 1899 B. moved to head the Physiological Institute in Lund, where from 1904 until his death he was professor of physiological chemistry. Died suddenly in the laboratory while at work. B.'s main works: "Micro-methods for blood research" (1923), "Chemistry and Biochemistry of Lipoids" (1911), "Blood Sugar" (1913), "Micro-methods for Blood Examination" (1915).