September 2004

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Volume 16 Issue 9
The “pseudostenosis” is a well-known angiographic finding observed when the guidewire crosses markedly angulated coronary segments, most commonly in right coronary arteries.1–9 This phenomenon is produced by the straightening of angulated segments by…
Atrial septal aneurysm is a cardiac malformation defined as a localized thinning and bulging of the atrial septum into either atrium. It appears to be acquired as the result of abnormal atrial hemodynamics with resultant pressure deformity and mobili…
Heparin has been the standard anticoagulation for percutaneous cardiovascular procedures (PCI). Its low cost and the lack of a better therapeutic alternative have accounted for its widespread adoption in the cardiac catheterization laboratory over th…
Case Study. A 49-year-old female was investigated for a 2-year history of dyspnea, angina on exertion, and exertional presyncope. Physical examination revealed a 2/6 mid-systolic murmur at rest, increasing in intensity to 3/6 following the Valsalva m…
Percutaneous coronary intervention (PCI) is increasingly utilized in the treatment of coronary artery disease. Despite its numerous benefits, serious and potentially life-threatening complications of PCI can occur, including iatrogenic coronary disse…
Percutaneous coronary intervention (PCI) has improved the treatment of coronary artery disease. However, unlike native coronary arteries, progress in the percutaneous intervention of saphenous vein bypass grafts (SVBG) has been disappointing, often c…
Catheter-based radiofrequency ablation (RFA) is an increasingly utilized modality for the treatment of symptomatic tachyarrhythmias. It is both safe and effective, but complications do infrequently occur. We present a case of asymptomatic acute infer…
During functional evaluation of an intermediate lesion in the circumflex coronary artery by pressure wire, an angiographically false image of long dissection extending from the left main coronary artery (LMCA) to the second obtuse marginal branch of…
Acute aortic dissection (AD) constitutes a life-threatening entity that requires early recognition and management.1–3 AD is a dynamic process with a broad clinical spectrum of presentation. In most patients AD occurs spontaneously as the result of cy…
Coronary artery bypass surgery is now a common operation in major tertiary centers with over 300,000 surgeries performed annually in the United States. Despite the refinement of the procedure and high volume experience of most surgeons, mistakes are…