Nontraumatic ascending aortic disruption.

This report documents a case of completely spontaneous ascending aortic disruption. A 54-year-old African American male day laborer presented with severe retro-sternal chest and back pain and shortness of breath. He had no history of hypertension, smoking, or trauma and was taking no medications.

Electrocardiograms with pacemakers: accuracy of computer reading.

Objective: We analyzed the accuracy with which a computer algorithm reads electrocardiograms (ECGs) with electronic pacemakers (PMs).

Methods: Electrocardiograms were screened for the presence of electronic pacing spikes. Computer-derived interpretations were compared with cardiologists' readings.

Analysis of current nuclear cardiology literature in MEDLINE database: a study of gated SPECT imaging using PubMed.

Background: Easy access to relevant clinical information is necessary for physicians to make the best decisions for patient management. The increasing amount of information available has made it difficult for physicians to retrieve up-to-date information efficiently. We sought to determine the accessibility and accuracy of indexing in the nuclear cardiology literature by conducting sample searches in the MEDLINE database on the topic of gated single photon emission computed tomography (SPECT) imaging.