. Diseases of the heart and thoracic aorta. Fig. 71.—Pressure i^ oz. IlG. 72.—Pressure 2| oz. Fig. 71.—Aortic Stenosis aiid Dilated Aorta.—J. C, puddler, aet. 25, admittedto Newcastle Infirmary 20th February 1879. The patient had been underobservation for four years previously. Marked thrill and loud systolicmurmur over base of heart and over aortic region. Heart moderatelyhypertrophied. Pressure = i^ oz. Fig. 72.—Tracing taking from the same patient with a slightly increased pressure;the apex is now pointed. In most cases of aortic stenosis a pointed apex can be obtained by carefuladjustment

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. Diseases of the heart and thoracic aorta. Fig. 71.—Pressure i^ oz. IlG. 72.—Pressure 2| oz. Fig. 71.—Aortic Stenosis aiid Dilated Aorta.—J. C, puddler, aet. 25, admittedto Newcastle Infirmary 20th February 1879. The patient had been underobservation for four years previously. Marked thrill and loud systolicmurmur over base of heart and over aortic region. Heart moderatelyhypertrophied. Pressure = i^ oz. Fig. 72.—Tracing taking from the same patient with a slightly increased pressure;the apex is now pointed. In most cases of aortic stenosis a pointed apex can be obtained by carefuladjustment and regulation of the pressure. (See figs. 71 and 72.) 244 Diseases of the Heart. Dr Galabin points out that if the tracing of any pulsetaken at a low pressure show a very marked primary summit,whose proportionate magnitude is modified by increase ofpressure, then the tracing taken at the higher pressure moreclosely represents the pulse-wave. The form of trace at thelower pressure may, however, have much significance, andin these

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectheart, bookyear1884