Jay E Tiongson

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Healthcare reform is upon the United States (US) healthcare system. Prioritisation of preventative efforts will guide necessary transitions within the US healthcare system. While annual deep-vein thrombosis (DVT) costs have recently been defined at the US national level, annual pulmonary embolism (PE) and venous thromboembolism (VTE) costs have not yet been(More)
PURPOSE This prospective study was designed to determine the upper limits of normal for duration and maximum velocity of retrograde flow (RF) in lower extremity veins. METHODS Eighty limbs in 40 healthy subjects and 60 limbs in 45 patients with chronic venous disease were examined with duplex scanning in the standing and supine positions. Each limb was(More)
BACKGROUND Information on nonsaphenous superficial venous reflux is lacking. This study was designed to determine the prevalence of reflux in nonsaphenous veins, their association and correlation with risk factors, and signs and symptoms of chronic venous disease (CVD). METHODS Information on 835 limbs in patients with signs and symptoms of CVD were(More)
BACKGROUND Patients with end-stage renal disease are at increased risk for sudden cardiac death, although the utility of implantable cardioverter-defibrillators (ICDs) in these patients is unknown. OBJECTIVES The purpose of this study was to evaluate whether end-stage renal disease is an independent risk factor for appropriate ICD therapy for ventricular(More)
OBJECTIVE Anecdotally, the Brockenbrough transseptal needle generates plastic particles through a process of skiving (shaving off particles), when advanced through the dilator and sheath. This study was performed to assess particle creation by the Brockenbrough needle during transseptal catheterization. We explore strategies that may reduce this phenomenon,(More)
Identified were characteristics of individuals with skin damage related to chronic venous disease. Patients with chronic venous disease (n = 164) were evaluated with duplex ultrasound imaging and were placed in classes 4, 5, and 6 according to the CEAP classification. Their findings were compared with 100 class 2 controls. The prevalence of deep venous(More)
Studies of myocardial metabolism have reported that contractile performance at a given myocardial oxygen consumption (MVO2) can be lower when the heart is oxidizing fatty acids rather than glucose or lactate. The objective of this study is to assess the prognostic value of myocardial metabolic phenotypes in identifying non-responders among non-ischemic(More)
INTRODUCTION Non-valvular atrial fibrillation (NVAF) and ischemic stroke are collectively associated with annual hospital costs of tens of billions of dollars in the USA. Oral anticoagulant (OAC) treatment with warfarin reduces the risk of stroke in patients with NVAF. Unfortunately, because of the complexity of warfarin therapy and potential for adverse(More)
OBJECTIVE To determine the prevalence of uncommon ulcers, unrelated to venous or arterial etiology, in patients presenting to vascular clinics. METHODS This was a multicenter prospective study of consecutive patients presenting with lower extremity ulceration. The settings were university hospital outpatient centers and venous clinics. A total of 799(More)