Lazar John Greenfield

Learn More
OBJECTIVE To define the relevance of treating renal artery aneurysms (RAAs) surgically. SUMMARY BACKGROUND DATA Most prior definitions of the clinical, pathologic, and management features of RAAs have evolved from anecdotal reports. Controversy surrounding this clinical entity continues. METHODS A retrospective review was undertaken of 168 patients (107(More)
Fifty-five patients with 72 aneurysms of the iliac vessels were evaluated retrospectively during a 12-year period (1972 to 1985). Atherosclerotic vascular disease was found in all aneurysms. Marked male predominance (5:1) and advanced age (mean 74.6 years) characterized this population group. Two thirds of them harbored multiple aneurysms and isolated(More)
The purpose of this report is to define the clinical characteristics and outcome of surgical management of vascular complications after interventional cardiac catheterization and to contrast them to those after diagnostic cardiac catheterization. From October 1985 to December 1989, 101 patients were treated for 106 vascular complications after 1866(More)
Initial efforts to modify the stainless steel Greenfield filter for percutaneous insertion led to development of a titanium Greenfield filter, which could be inserted by use of a 12F carrier. This device functioned well as a filter but had an unacceptable 30% rate of migration, tilting, and penetration. Therefore a titanium Greenfield filter with modified(More)
BACKGROUND The long-term consequences of stress on the surgeon are unknown. One manifestation of stress is burnout. The purpose of this study was to measure the prevalence of burnout in actively practicing American surgeons. METHODS The Maslach Burnout Inventory and a questionnaire of our own design were sent to 1706 graduates of various University of(More)
BACKGROUND Hospital cost containment, cost reduction, and alternative care delivery systems continue to preoccupy health care providers, payers, employers, and policy makers throughout the United States. The universal metric for gauging the success of these efforts is hospital length of stay (LOS). Reducing the LOS purportedly yields large cost savings. The(More)
The proinflammatory cytokines have been implicated in mediating myocardial dysfunction associated with myocardial infarction, severe congestive heart failure, and sepsis. We tested the hypothesis that cytokine levels are elevated after uncomplicated coronary artery bypass grafting and associated with episodes of postoperative myocardial ischemia and(More)
Monitoring of ventricular function by central venous (CVP) and pulmonary wedge pressures (PCW) was compared with ejection fraction and end-diastolic volume (gated pool scan) in patients resuscitated from hypovolemic and septic shock. Sixteen patients were studied within 24 hours of resuscitation and all showed depressed right ventricular ejection (RVEF)(More)
Review of the indications for and results of Greenfield filter placement for protection against thromboembolism in 260 patients shows that the most common indication remains a contraindication to anticoagulation therapy (35%) or recurrent thromboembolism in spite of anticoagulation therapy (31%). Prophylaxis in the absence of embolism is a less common(More)