. Medical diagnosis for the student and practitioner. Fig. 330.—E 80). Readily dilatable drop heart in obese young woman. Decom-pensation when present manifested chiefly by pulmonary congestion. Exposure shownwas made during such a decompensatery period. The total transverse diameter is See Fig. 329 for comparison. arterial changes and a slowly progressive increasing deficiency of theperipheral circulation and of the heart itself. Men do not often die of chronic valvular disease, per se, but of its inevitableaccompaniment, myocardial degeneration. 628 MEDICAL DIAGNOSIS Acquiredequilibr
. Medical diagnosis for the student and practitioner. Fig. 330.—E 80). Readily dilatable drop heart in obese young woman. Decom-pensation when present manifested chiefly by pulmonary congestion. Exposure shownwas made during such a decompensatery period. The total transverse diameter is See Fig. 329 for comparison. arterial changes and a slowly progressive increasing deficiency of theperipheral circulation and of the heart itself. Men do not often die of chronic valvular disease, per se, but of its inevitableaccompaniment, myocardial degeneration. 628 MEDICAL DIAGNOSIS Acquiredequilibrium. Hypertrophy is gradually superadded to dilatation and after a variableperiod, in young hearts at least, the increase of muscle and the dilatationlimiting tonus establish a circulatory equilibrium backed by a variable amountof reserve, often wholly adequate to hard labor, and a normal pulse. Fig. 331.—A type of cardiac outline frequently observed in high blood-pressure underlying hanging drop type and extremely small transverse diameter despite theincrease of left heart area. rate. There remains, however, perhaps only in slight and unnoticeabledegree, a constant slowly progressing damage in the vascular field. In suchcases we inaccurately but conveniently say that the lesion is compensated. HEART-COMPENSATION 629 A Cardiovascular Paradox.—So wonderful is this adaptive change thatfor years a man may pursue a laborious occupation without any seriousbreak in this circulatory equilibrium, yet he may and often does break downsuddenly under some unusual physical strain, no greater, less perhaps, than
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
