's treatment of the making a diagnosis and giving treatment of atrio-ventricular block for a time

's treatment of the making a diagnosis and giving treatment of atrio-ventricular block for a time
Disease summary
Atrio-ventricular block (first degree atrioventricular block, degree AVB) for a time Mean the room room conducts time to lengthen, exceed the normal range, but each atrium is excited can still spread into the ventricle, also claim the room room conducts the delay.
Differential diagnosis
1.Differentiation of some special phenomena at the time of atrio-ventricular block for a time For a time when atrio-ventricular block is with sinus nature tachycardia or room tachycardia, because the emergence of the intersection of P and wave may be in relaxation middle period, relaxation early period, shrinking in later period and shrinking in middle period, it shrinks middle period to be early even, cause issue among the P-R, appear issue greater than issue under P-P or equal issue among the P-P among the P-R, or when being smaller than one among P-P slightly, it is apt to misdiagnose as other arrhythmia.
(1)For a time when atrio-ventricular block is with sinus nature or room tachycardia, if one is greater than one among P-P among P-R, sinus the intersection of P and wave need, cross over under later the intersection of P and wave passing the ventricle, claim to cross over and conduct then. This P wave calls " crossing over P wave " ,It is apt to misdiagnose it for 2 at this moment: The rooms of room 1 are conducted.
(2)For a time when atrio-ventricular block is with sinus nature or room tachycardia, if one equals one among P-P among P-R, because the intersection of P and wave overlap in the intersection of QRS and wave at this moment, see, there is not the intersection of P and wave (the intersection of P' and wave) while being a series of only Room on sex QRS-T wave group,getting more apt to misdiagnose to room room handing over tachycardia or sex tachycardia at room at this moment. If stimulate the nervus vagus, make the heart rate slow down such as oppressing carotid sinus and or inject atropines to make the heart rate accelerate, can enable P wave (P' wave) Separate and confirms and diagnoses in wave group from QRS.
(3)For a time when atrio-ventricular block is with sinus nature or room tachycardia, if one is slightly smaller than one among P-P among P-R, because the intersection of P and wave appear, shrink middle period in early days at this moment, namely the intersection of P and wave lie J some some in front of being partial in this period of times such as summit such as wave such as T, it is apt to misdiagnose it in order to conduct above average and conduct above average false (space phenomenon) . Distinguish it is because of shrinking before one on the basis of sinus tachycardia that some lies in conducting or false and conducting above average above average, it appear on shrink middle period, and can unexpected underground pass. And sinus tachycardia (or room tachycardia) Accompany it at the time of atrio-ventricular block for a time, only a P wave (P' wave) ,And one (or one among P' - R) among P-R Obvious extension.
2.With the differentiation of one among interfering with P-R Person who insert shrink in front of the issue can produce issue lengthen among the P-R, reason this the intersection of back run and the intersection of and room that shrink whom room hand over in the district invisible to conduct in front of the issue while being back, make before the issue shrinking back the first sinusing issue or issue lengthen among the several aroused in interest P-R continuously among the aroused in interest P-R; Spread because room tachycardia to the room room to hand over zone time under the excited P' wave of atrium, it is answer on the period relatively to if you can't district meet just on this, in,P' be and then not more cause there more lengthen is issue among P-R at a the first one T that waves aroused in interest on propping up oftenned wave. One is lengthened among the above-mentioned two kinds of situations namely P-R that the interference of so-called room room causes.
3.Form a issue of differentiation lengthening while conducting P-R caused of one pair of routes with the room room Appear in sinus rhythm of the heart sometimes " The crossing " The atrio-ventricular block for a time, in fact reflect that the room room formed one pair of routes. P-R (A-H) at this moment Among extension of issue is block routes quick, conduct that routes slow because in form room room. Sinus rhythm of the heart is conducted in the quick route while forming through the room room this time sometimes. Will conduct in the slow route while forming through the room room next time. Shown as in the electrocardiogram one appears alternatively in short and long P-R.
Healing solution
Atrio-ventricular block does not usually produce dynamics of blood flow to change for a time, to having no symptom, not also having hypotension or sinus the slow one aroused in interest that does not need special-purpose processing, directed primarily to having illness coming on originallying because treat; The more slowly persons who have obvious symptoms can use atropine 0.3mg to the heart rate, take orally 2- 3 times d; Or aminophylline 100- 200mg, take orally 2- 3 times d. Some teenagers appear issue lengthen among the P-R, have obvious symptom, one return to normal among the P-R after the treatment through resist rheumatism, should consider as due to rheumatic fever. Atrio-ventricular block have patient of symptom for a time to lie in wish in the system Pu, must follow up a case by regular visits to and observe closely, because it may have changed into the atrio-ventricular block of two degrees of Model 2 suddenly, even highly change into or atrio-ventricular block of three degrees. Medical history that if the patient fainted to break out and getting rid of other reasons. Though only for a time atrio-ventricular block, wish one bunch of electric pictures verifies that wishes one bunch of one that lefts was blocked for a time in bunch or wishes on the electrocardiogram, must consider placing the pace maker treatment. As the patient has history of fainting, one among the electrocardiograms P-R is normal, but wish one bunch of electric charts is a prominent extension (> 60ms) among H-V now ,Also should consider placing the pace maker.
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