Cynthia M. Tracy

American College of Cardiology/Society for Cardiac Angiography and Interventions Clinical Expert Consensus Document on Cardiac Catheterization Laboratory Standards: A report of the American College of Cardiology Task Force on Clinical Expert Consensus Documents

This document has been developed as a Clinical Expert Consensus Document (CECD), combining the resources of the American College of Cardiology (ACC) and the Society for Cardiac Angiography and Interventions (SCA&I). It is intended to provide a perspective on the current state of cardiac

ACC/AHA guidelines for ambulatory electrocardiography: Executive summary and recommendations: A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Revise the Guidelines for Ambulatory Electrocardiography): Developed in Collaboration with the North American Society for Pacing and Electrophysiology

Improvements in solid-state digital technology have enhanced transtelephonic transmission of electrocardiography (ECG) data and increased the accuracy of software-based analysis systems. These advances, in addition to better signal quality and greater computer arrhythmia interpretation capabilities, have opened new potential uses for ambulatory electrocardiography (AECG). Traditional uses of AECG for arrhythmia detection have expanded as the result of increased use of multichannel and telemetered signals. The clinical application of arrhythmia monitoring to assess drug and device efficacy has been further defined by new studies. The analysis of transient ST-segment deviation remains controversial, but considerably more data are now available, especially about the prognostic value of detecting asymptomatic ischemia. Heart rate variability (HRV) analysis has shown promise for predicting mortality rates in cardiac patients at high risk. Despite these advances, a true automated analysis system has not been perfected and technician/physician participation is still essential. The widespread availability and low cost of personal computers and workstations has allowed for the development of extremely sophisticated and automated signal processing algorithms. Current AECG equipment provides for the detection and analysis of arrhythmias and ST-segment deviation as well as more sophisticated analyses of R-R intervals, QRS-T morphology including late potentials, Q-T dispersion, and T-wave alternans. There are 2 categories of AECG recorders: continuous recorders, typically used for 24 to 48 hours to investigate symptoms and ECG events that are likely to occur within that time frame, and intermittent recorders, which may be used for long periods of time (weeks to months) to provide briefer, intermittent recordings for investigating events that occur infrequently. ### A. Continuous Recorders Rapidly evolving technologies now allow for direct recording of the ECG signal in a digital format using solid-state recording devices. The direct digital recording avoids all of the biases introduced by the mechanical features of tape recording devices and the problems associated with …

ACCF/AHA/CDC conference report on emerging infectious diseases and biological terrorism threats: the clinical and public health implications for the prevention and control of cardiovascular diseases.

### American College of Cardiology Foundation ### American Heart Association View this table: ACCF/AHA/CDC Consensus Conference Report on Emerging Infectious Diseases and Biological Terrorism Threats—Participants’ Relationships With Industry