What Is the Value of QRS Duration for the Prediction of Response to Cardiac Resynchronization Therapy?doi:10.1111/j.1541-9215.2007.05603.xGabeB.BleekerJeroenJ.BaxWileyAmerican Heart Hospital JournalBleeker GB, Bax JJ. What is the value of QRS duration for the prediction of response to cardiac ...
qrsmorphologydurationcardiacmattersdyssynchrony REVIEWTOPICOFTHEWEEKQRSDurationorQRSMorphologyWhatReallyMattersinCardiacResynchronizationTherapy?JeanneE.Poole,MD,aJagmeetP.Singh,MD,PHD,bUlrikaBirgersdotter-Green,MDcABSTRACTThebeneficialeffectsofcardiacresynchronizationtherapy(CRT)havebeenwellestablishedinlarge,randomize...
Targeting tachycardia: diagnostic tips and tools: many narrow QRS complex tachycardias are benign, but some require rapid intervention. The review, EKG str... Narrow QRS complex tachycardias--rhythms with a rate 100 beats per minute (bpm) and a QRS duration Early and accurate diagnosis is para...
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The space between the P wave and the R wave within the QRS complex is called the PR interval and normally lasts 120 to 200 milliseconds. A good indicator of atrioventricular (AV) node function, the PR interval reproduces the time for an electrical impulse to travel from the sinus node ...
不作为惯性即失去-一个具有吸引力的行为机会，将会导致对随后相同领域内类似机会的不作为。这种现象通常发生在，错失的前一次机会的吸引力大过当前呈现机会的吸引力的情况下，哪怕当前机会仍然具有“正效价”，人们通常都采取不作为。根据上述定义，下列不属于不作为惯性的是：
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30 Figure 4A illustrates good basket coverage, producing high-confidence FIRM maps. Basket positioning is used to minimize electrodes overlying the superior and inferior mitral annulus (left atrium), or triscupid annulus (right atrium), that register ventricular (QRS) artifact. Moreo...
Multiple myeloma (MM) is a hematological malignancy characterized by an increase in aberrant plasma cells in the bone marrow leading to rising monoclonal protein in serum and urine. With the introduction of novel therapies with manageable side effects, this incurable disease has evolved into a chroni...
Following the principle of counterpulsation, the IAB is deflated during systole which coincides with QRS –T interval (R wave always triggers balloon deflation). In this manner balloon inflation during cardiac systole is prevented. The IAB is inflated during diastole, which coincides with T-P int...