Guidelines for percutaneous transluminal coronary angioplasty. A report of the American Heart Association/American College of Cardiology Task Force on Assessment of Diagnostic and Therapeutic Cardiovascular Procedures (Committee on Percutaneous Transluminal Coronary Angioplasty)

"The American College of Cardiology/American Heart Association Task Force on Assessment of Diagnostic and Therapeutic Cardiovascular Procedures was formed to gather information and make recommendations about appropriate use of technology in the diagnosis and treatment of patients with cardiovascular disease. Coronary angioplasty is one such important technique. We are currently witnessing an extraordinary expansion of the use of coronary angioplasty as an alternative means of achieving myocardial revascularization. An estimated 300 000 angioplasty procedures were performed in the United States in 1990, a more than tenfold increase over the past decade.1 Such growth is attributable not only to demonstrated clinical benefit but also to continuing technical advances that have led to improved techniques and higher success rates over time. There was some concomitant broadening of the indications for both coronary angiography and angioplasty, which led the task force to promulgate guidelines for coronary angiography in 19872 and guidelines for percutaneous transluminal coronary angioplasty (PTCA) in 1988.3 In view of the continuing advances and expanding role of interventional cardiology in clinical practice today, it was recommended that this committee review current indications and procedures governing the performance of angioplasty in the United States and determine whether any alterations in the previously published guidelines are warranted. Such a review was anticipated and recommended in the original committee report.3 This document presents the summary opinion of the reconvened committee with its newly constituted membership.

Esophageal and tracheobronchial foreign bodies in infants and children

In an effort to improve the diagnosis and management of children with aspiration or ingestion of foreign bodies we reviewed 100 consecutive cases of esophageal (49) or tracheobronchial (51) foreign bodies occurring over a 6-year period. While the incidence of positive physical findings in the esophageal group was low, the combination of plain and contrast radiography was positive in 96% (47/49). Of the patients with tracheobronchial foreign body, 78% (40/51) had lateralizing signs on physical examination and 80% (41/51) had abnormal inspiratory/expiratory radiographs. Disimpaction of esophageal foreign bodies was carried out using a combination of techniques with 100% success and no complications. All cases of tracheobronchial foreign bodies were managed with the rigid bronchoscope with 98% success (50/51) using a variety of instruments. Complications secondary to the foreign body itself rather than its management were seen in 9 patients, and were often due to a delay in diagnosis. A careful history and physical examination along with appropriate radiographic studies will result in a correct diagnosis in virtually all cases of esophageal and tracheobronchial foreign bodies. A liberal indication for endoscopy using an approach tailored to the particular case will almost always be successful.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47159/1/383_2004_Article_BF00175647.pd

“Wear your eyes thus”: Toward a Cognitive Ecology of VR Shakespeare

How will immersive virtual reality (VR) cognitively affect the audiences who interface with it to interpret Shakespeare performances? Current theories of performance and cognition are based on theatre and film audiences, but VR performances combine features of both media: a disembodied spectral presence, like a theatrical audience; and a flexible range of locations and vantage points, like a film audience. This paper imagines how VR might adapt a sequence from Orson Welles' 1952 film *Othello*. It asks not only what would be lost and gained in the transition, but what cognitive ecology results from a medium that limits our interaction with and our movements within a performed narrative

Course Outline: Revenge Tragedy

English 412 is, in its official description, "A survey of drama from 1558 to 1603, including works by William Shakespeare and Christopher Marlowe." In this version from 2017, students focused on six revenge tragedies, the blockbuster genre of the Elizabethan theatre: plays filled with bloody violence, elevated rhetoric, and ghosts imploring justice. Like classic Hollywood films, revenge tragedies demanded more collaborations among writers than any other genre -- famous playwrights like Marlowe and Shakespeare, and the lesser-known Thomas Kyd, George Peele, John Marston, Henry Chettle, and Thomas Middleton. Students learned about their collaborations and their competitions for audiences, and their tragedies' adaptations of ancient sources to modern contexts