So with other valvular murmurs: for example, an aortic diastolic murmur proves to be related to syphilis.
Note contractile effect of light in diminution of amplitude and reduction of diastolic limit of pulsation.
Up-curve represents diastolicexpansion and down-curve systolic contraction.
The up-and-down movements of the leaflet correspond to the diastolic and systolic movements of the animal heart.
The contractile effect of light is seen not only in the retardation of growth, but also by the characteristic modification of pulsation of Desmodium in the diminution of diastolic limit of expansion.
The contractile effect of stimulus is seen in the pulsations of leaflet Desmodium by the reduction of their expansive or diastolic limit, and in growing organs by the retardation of the rate of growth.
The contractile reaction of light is seen to counteract the normal expansion, with diminution of diastoliclimit of pulsation.
Application of cathode at the pulvinule was found to exert a contractile reaction, exhibited either by the reduction of normal limit of diastolic expansion, or by an arrest of movement at systole.
Each pulsation consists of a sudden contractile movement downwards, corresponding to the systole of a beating heart, and a slower up movement of diastolic expansion.
If there is a high systolic pressure and a correspondingly high diastolic pressure, the balance between the vessels and the heart is compensated as long as the heart muscle is sufficient.
While a real atheroma generally causes a reduction in diastolic blood pressure, or at least but slight increase, he has found in syphilitic cases with arteriosclerosis a high diastolic pressure.
If such patients have the systolic blood pressure raised even a small amount, or if the diastolic pressure, which is very low, is raised even a small amount, they immediately feel better.
It has been suggested that the diastolic pressure be taken at the point where the sound is first heard on gradually raising the pressure in the armlet.
On the other hand, if the diastolic is being raised by an increased venous pressure from a failing heart, digitalis, strychnin and caffein may be of benefit in lowering the diastolic as well as raising the systolic.
Hence the relationship of the systolic to the diastolic pressure in pneumonia is of very great importance in deciding on the proper treatment.
If the systolic pressure is not very low but the diastolic is high, vasodilator drugs, by lowering the diastolic and increasing the pulse pressure, are often of benefit.
He also takes the systolic and diastolicpressures at the same time.
However, for general use, unless one is particularly expert, it is better to read the diastolicpressure at the beginning of the fifth phase.
The strenuous measures that should he used to lower a high diastolicpressure are contraindicated when the diastolic pressure is already low, even if the systolic pressure 1s high.
When a normal person reclines, with the muscular system relaxed, there is an increase in the systolic pressure and a decrease in the diastolic pressure, with an increase in the pressure pulse from the figures found when the person is standing.
The blood which distends the ventricles is driven forcibly into them by the auricular systole, the muscular walls of the auricles having been stimulated to contract by diastolic distention due likewise to blood.
Harvey made the systolic contraction of auricle or ventricle dependent on the mechanical stimulus of its next preceding diastolic distension.
The systolic muscular contractions of the walls of the ventricles are caused by direct mechanical stimulation (in modern language) due to diastolic distension by blood of the relaxed muscular walls of these chambers.
When all these factors are taken into consideration, it becomes apparent that the diastolic pressure is most important, if not the most important part of the pressure picture.
It was therefore concluded that experimentally in dogs the point where diastolic pressure should be read is at the tone change from clear to dull, not at the point where all sound disappears.
Thus the diastolic pressure may be read off on the dial scale by watching the fling of the hand and with some practice one might acquire considerable accuracy.
In other words the systolic pressure is always increased to greater degree than the diastolic pressure.
On the other hand, the pressure must not be released too rapidly, else one runs over the points of systolic and diastolic pressure and the readings are grossly inaccurate.
No one can seriously maintain that he can measure the diastolic pressure under all circumstances.
Again we repeat that it is not the systolic alone or the diastolic alone but the pulse pressure which we wish to keep informed about.
Hemorrhage lowers also the pulse pressure, and it may be possible to prognosticate internal hemorrhage by frequent estimations of the systolic and diastolic pressures (Wiggers).
Note that diastolic pause in which extrasystole occurs is practically equal to two normal diastolic pauses.
Now the whole duty of the anesthetist is to administer the ether so that this ratio of systolic and diastolic is maintained throughout the operation.
The diastolic pressure drops back nearly to normal and the increased pulse pressure is due almost entirely to the slight rise in the systolic pressure.
The high pulse pressure is due to a very low diastolic pressure, for in my experience with uncomplicated aortic insufficiency the systolic pressure is, as a rule, not much increased above the normal for the individual's age.
The pressure then in these arterioles is practically the same as the diastolic pressure.
When the systolic anddiastolic pressures approach, heart failure is imminent either when pressure picture is high or low.
The diastolic pressure is determined by the tone in the arterioles and is under the control of the vasomotor sympathetic system.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "diastolic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
