. Medical diagnosis for the student and practitioner. s) at the right sternal border is acute in the case of the normalheart, a right angle in the case of the extreme type of drop heart, with the accumulationof fluid the angle is rendered obtuse by decided dulness or flatness, on light percussion, andso demonstrable in many instances. The position of the angle is shifted to the right, butas the effusion distends the sac an acute angle is formed decided dulness or flatness ex-tends far beyond the sternum to the right. The secondary resumption of the acute anglemay not be demonstrable by percuss
. Medical diagnosis for the student and practitioner. s) at the right sternal border is acute in the case of the normalheart, a right angle in the case of the extreme type of drop heart, with the accumulationof fluid the angle is rendered obtuse by decided dulness or flatness, on light percussion, andso demonstrable in many instances. The position of the angle is shifted to the right, butas the effusion distends the sac an acute angle is formed decided dulness or flatness ex-tends far beyond the sternum to the right. The secondary resumption of the acute anglemay not be demonstrable by percussion, though readily revealed by the fluoroscope. Cryptogenetic focal infections of the most varied actual origin are adequateto produce the disease and a considerable number of cases result throughdirect extension and circulatory and structural continuity in cases of pneu-monia, pleurisy and peritonitis. Whether the disease may be said to be caused by Brights disease, scorbu-tus, purpura and other ailments of like nature may be doubted. The depress-. Fig. 424.—General dilatation and insufficiency. This may resemble pericardial effu-sion yet more closely in certain universal dilatations of the drop heart occasionally en-countered in acute prostrating infections. (Schwartz, modified.) (See Fig. 358.) ing constitutional effect of such toxemias doubtless invites infection from themany obscure but potent sources now known to exist in a considerable pro-portion of individuals. The same statement applies to pericarditis associatedwith pulmonary tuberculosis in some instances, many of these being non- PERICARDITIS 783 tubercular and probably due to the same conjunction of predisposition andpotent pathogenic organism.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
