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A survey of implanters of permanent cardiac pacemakers and implanted cardioverter-defibrillators (ICDs) in the United States during 1993 was conducted to identify present and changing patterns in indications for pacing, implantation techniques, pacing-mode selection, follow-up, and opinions...
Digital coronary angiographic techniques are now widely used in many cardiac catheterization laboratories. However, the full potential of digital imaging technology remains to be achieved because of its enormous storage and exchange requirements. Compression of digital imaging data allows a...
The aim of this study was to assess the importance of congestive heart failure and left ventricular (LV) systolic dysfunction after an acute myocardial infarction (AMI) on long-term mortality in different age groups. A total of 7,001 consecutive enzyme-confirmed AMIs (6,676 patients) were...
In summary, although larger lumens by core laboratory readings result in a lower restenosis rate at restudy, the relation between post-PTCA and restudy results as measured by the local site operator is weak, and the strategy of trying to obtain the largest lumen possible when using balloon...
Sotalol caused similar proportional changes in ventricular effective refractory period at both 600 and 300 ms cycle lengths. There is no evidence for clinically significant reverse-use dependence on ventricular refractoriness at normal versus rapid heart rates in the intact human heart.
In summary, by using a turbidimetric method there is no evidence of a direct proaggregatory effect of cocaine or its metabolites on platelet function in healthy volunteers without prior exposure to this drug, and it may even have antiaggregatory effects in this group. Both thrombotic and...
This study was performed to assess the value of dobutamine stress echocardiography for noninvasive diagnosis of cardiac allograft vasculopathy (CAV) compared with coronary angiography and intravascular ultrasound (IVUS) in 50 consecutive orthotopic heart transplant recipients. In 46 of 50...
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