Shannon D Hoffman

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BACKGROUND Aortic valve replacement (AVR) is the treatment of choice for critical aortic stenosis. Selected patients have not previously been referred for AVR because of excessive risk of mortality and morbidity with surgery. The option of transcatheter aortic valve implantation (TAVI) has increased referral of this high-risk cohort for therapeutic(More)
The objective of this study was to determine pressure-volume relationships in the human knee. Eight normal knees in eight patients undergoing elective arthroscopic surgery were studied to develop pressure-volume curves at 0 degrees, 15 degrees, 30 degrees, 60 degrees, and 80 degrees of flexion, and measure capsular volume at 0 degrees, 15 degrees, 30(More)
PURPOSE We evaluate whether spiral computerized tomography (CT) can be used in lieu of renal angiography for preoperative assessment of living renal donors, with special attention to multiplicity of renal vasculature. MATERIALS AND METHODS A total of 47 living renal donor candidates were evaluated with spiral CT and all but 2 underwent donor nephrectomy.(More)
BACKGROUND A minimally invasive surgery for treatment of atrial fibrillation was developed with bilateral pulmonary vein isolation, mapping, and ablation of the ganglionic plexi and excision of the left atrial appendage. A prospective multicenter registry was created to evaluate the outcomes. METHODS The procedure was performed through bilateral(More)
BACKGROUND Cardiac resynchronization therapy has been shown to be an effective treatment to improve functional status and prolong survival among patients with advanced congestive heart failure. However, as many as 30% of patients do not respond. Nonresponse may be due to suboptimal left ventricular lead placement. Studies have indicated that leads placed in(More)
We report a case of recurrent priapism in a sickle cell patient who had undergone physiological transformation from a low-flow state to a mixed high-flow/low-flow picture. An oral alpha-adrenergic agonist/histamine-1 antagonist combination maintained a balance of potency without stutter in the latter state, whereas an oral alpha-adrenergic agonist in the(More)
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