Epinephrine room of can turn back by the intersection of dependence and peaking etc. tachycardia diagnose check _'s symptom

Epinephrine room of can turn back by the intersection of dependence and peaking etc. tachycardia diagnose check _'s symptom
Diagnose: Schwarts got in law LQTS diagnostic standard out of and scored in 1993, it was a common diagnostic standard in the world at present.
Check in the laboratory: Have not found the relevant materials yet at present.
Other auxiliary examination:
Check the characteristic in electrocardiogram
(1)Epinephrine can the intersection of dependence and TDP break out an electrocardiogram characteristic of intermittence:
One is lengthened and T, U wave are unusual among Q-T: A. One is lengthened among Q-T: The traditional diagnostic standard is greater than or equal to 0.44s for one and QTc among Q-T. The internatioanlly agreed diagnostic standard put forward in 1993 was greater than or equal to 0.45s, women and greater than or equal to 0.46s for men, in order to lengthen. One is lengthened to usually exist for a long time among the patients Q-T of this disease, but its intensity is often changed, not lengthening sometimes, as the increase of age can be shortened gradually, sports can make one among Q-T lengthen. The size of one relates to kind of gene of mutation among Q-T. LQTS1, LQTS2 person issue mostly normal among the Q-T, LQTS3, LQTS4 person issue lengthen among the Q-T. Several second in several minute, it is obvious issue under Q-T until TDP break out Obvious extension, the intersection of TU and wave unusually, can chase, fight, display difference obviously, chase it, change, even the split second changes. The intersection of TDP and issues of> 0.44s mostly under Q-T break out, short of some patients> 0.60s. B.T, U wave shape are unusual: T The wave is spacious, increase of U wave amplitude. Different kinds of the intersection of mutation and gene the intersection of T and the intersection of wave and shape can have difference among being LQTS getting inferior, can show as, increase wide becoming sharp lowering etc.. Can appear the intersection of T and the intersection of wave and electricity replace ,Appear until Epinephrine can before the intersection of dependence and TDT break out often, but intermittence person who rely on TDP have characteristic this, can distinguish. It also discerns a high an important and objective index of endangering the patient. U The wave can also increase notably '> 0.15mV is a prominent U wave) ,Can also present U wave electricity to replace, in order to present QT(U) particularly There is the electricity even more alternatively to diagnose value. TU amplitude, QT electricity are replaced, can present the fluctuation change, and the disease development degree, taking exercises and excited vigorously with the patient has close relations. It is often the omen appearing in serious arrhythmia that the complicated TU shape is changed.
Among breaking out intermittent during this periodly or Q-T when one is normal: By impelling the method that the orthosympathetic tension increases, test, cold testing or tile movements of pressurizing in such as sports, or vein instil different third Epinephrine wait for measure to increase heart rate, can make issues of person who lengthen lengthen even more among the original Q-T, the delay take place in the normal one among Q-T, T wave increases, increases widely, U wave amplitude increases, and can bring out TDP. Kadise(1990) Propose quiet interest QT normal it lengthens to be " the getting potential LQTS " unusually at the sporting Concept.
Prove through taking exercises and testing to LQTS patient's family, observes the changes of T, U wave, it has certain prediction function whether to have illness coming on to it or not.
Break out intermittence it is obvious room nature shrank before one or flat R-on-T nature shrank before one during this period: Basic rhythms of the heart are mostly sinus rhythms of the heart.
One among Q-T is dispersed degree is big: Regular to lead difference of issue under most long most short Q-T unite, for issues of dispersed degree under Q-T, dispersed degree (QTd) reflecting the ventricle replies very much . The normal per person is 89ms, per person of LQTS patient is 155ms.
(2)Epinephrine can the intersection of dependence and TDP break out an electrocardiogram characteristic: The frequency is 150- 180 times min while breaking out, TDP can be by R-on-T type (R-on-U type) The room shrinks and brings out before one. Can be seen on ventricle replying time extreme extension Q-T/R-R large while or equals 1ing very much, even neat normal heartbeat also can fall into whom ventricle delay unusually reply, bring out, produce ADP during this period extremely ADP have one is long and the other is short characteristic of cycle, this the intersection of intermittence and main basis that ADP distinguish one of of relying on etc. originally type.
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