Publications by authors named "Harold D Waller"

Objectives: The natural history and optimal management of spontaneous renal artery dissections (SRADs) are poorly understood. We compared baseline characteristics, presentation, management, and outcomes between patients with symptomatic versus asymptomatic SRADs.

Methods: We performed a retrospective review of medical charts for patients diagnosed with SRAD at a single, tertiary care center.

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Background: Clinical outcomes in women with peripheral artery disease (PAD) after revascularization procedures are worse compared to men, yet there is little in the existing literature as why this may be the case. Platelet Mapping is an emerging point-of-care viscoelastic technology that measures the comprehensive properties of a blood clot, including fibrin-platelet interactions. This prospective observational study aimed to characterize the clinical and Platelet Mapping profiles of female and male patients undergoing lower extremity revascularization, and to correlate Platelet Mapping distribution to thrombotic potential.

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Background: Postoperative infection and wound dehiscence rates are higher than expected in peripheral artery disease and contribute significantly to limb loss and mortality. Microvascular pathology characterized by microthrombi and increased platelet aggregation have been cited as contributing factors to poor wound healing and infection. The emergence of viscoelastic assays, such as thromboelastography with platelet mapping (TEG-PM), have been utilized to identify prothrombotic states and may provide insight into a patient's microvascular coagulation profile.

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Background: Pregnancy is a known risk factor for developing varicose veins (VV). However, pregnancy is often considered a homogeneous entity and few studies have examined if specific characteristics and complications of pregnancy may influence VV formation. This study sought to identify which pregnancy-specific factors are associated with the development of VV.

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Background: There is a paucity of data regarding the conversion rate from dry gangrene to wet gangrene after lower extremity revascularization. This study aimed to determine the rate of conversion from dry to wet gangrene within 30 days post-procedure in patients who underwent endovascular or open revascularization for critical limb ischemia. Secondary aims included determining the time to conversion and associated risk factors with conversion.

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Objective: Spinal cord ischemia (SCI) is one of the most devastating complications after descending thoracic aortic (DTA) and thoracoabdominal aortic (TAA) repairs. Patients who develop SCI have a poor prognosis, with mortality rates reaching 75% within the first year after surgery. Many factors have been shown to increase the risk of this complication, including the extent of TAA repair, length of aortic and collateral network coverage, embolization, and reduced spinal cord perfusion pressure.

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Objective: Penetrating atherosclerotic ulcers (PAUs) in aortic branch vessels are rare. There is a paucity of data regarding their long-term natural history and associated management. This study aimed to determine the prevalence and natural history of aortic branch PAUs.

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Objective: The current Society for Vascular Surgery practice guidelines recommend carotid revascularization for asymptomatic disease in patients with at least a 3-year life expectancy and stenosis >60% when the expected perioperative stroke and death rate is <3%. Based on this recommendation, it was previously determined that asymptomatic patients who require dialysis would not meet the perioperative stroke and death thresholds nor the long-term survival benchmarks to justify carotid surgery. To determine whether carotid surgery for patients requiring dialysis is appropriate, the present study compared the perioperative outcomes after carotid revascularization for dialysis-dependent patients relative to nondialysis patients in a contemporary, national cohort.

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