Treatment of renovascular hypertension remains a topic of much dispute. The simplistic approach says that if a renal artery stenosis (RAS) causes hypertension, invasive therapy will cure the patient. That approach overlooks that patients with atherosclerotic RAS as a rule exhibit widespread vascular disease of other organs leading to premature death that is barely influenced by the blood pressu...

UNLABELLED Peritonsillar abscess (PTA) can be a life-threatening disease and may lead to significant complications without drainage. OBJECTIVES To describe the utility of ultrasound (US) in the evaluation of potential PTA and US-guided PTA drainage. METHODS The authors performed a retrospective US quality assurance review of all patients over 18 years of age scanned by emergency physicians ...

OBJECTIVES To study the relationship between peritonsillar abscess (PTA) and minor salivary glands surrounding the palatine tonsils. STUDY DESIGN Prospective population-based study. SETTINGS Tertiary care university hospital. SUBJECTS AND METHOD Prospective study including 41 patients with PTA and 6 patients with a neck abscess. Amylase levels of the pus and serum were measured and compar...

BACKGROUND Constrictive vascular remodeling (VR) is the most significant component of restenosis after balloon angioplasty (PTA). Whereas in physiological conditions VR is associated with normalization of shear stress (SS) and wall stress (WS), after PTA the role of SS and WS in VR is unknown. Furthermore, whereas matrix metalloproteinase inhibition (MMPI) has been shown to modulate VR after PT...

Although many investigators have reported the hearing function in the immediate postoperative period in patients with vestibular schwannoma (VS), little is known about the long-term outcomes of the postoperative hearing. The aim of this study was to analyze the long-term hearing outcomes at a mean follow-up of 5 years in patients with unilateral VS treated via the retrosigmoid approach. Twenty-...

Pseudomonas aeruginosa is a common pathogen implicated in nosocomial infections with increasing resistance to a limited arsenal of antibiotics. Monte Carlo simulation provides antimicrobial stewardship teams with an additional tool to guide empiric therapy. We modeled empiric therapies with antipseudomonal β-lactam antibiotic regimens to determine which were most likely to achieve probability o...

To apply the method of quantitative electron microscopy to the measurement of mass in thin sections, the thickness of the section at or very near the structure to be studied must be known. Dowex anion exchange resin AG 1 x 2, stained with phosphotungstic acid (PTA) at pH 6.4, was used as a thickness standard which could be embedded and sectioned. The sectioned PTA-Dowex appeared uniformly stain...

Surgery is the traditional treatment for juxta-anastomotic stenoses in forearm arteriovenous fistulas (AVF), but percutaneous transluminal angioplasty (PTA) is a suitable alternative. No prospective comparative trials between the two have been reported to date, however. A retrospective analysis of prospectively, concurrently collected data was performed to compare the outcome and cost of surger...

A cobalt cluster-based triple-stranded helicate, Co8(PDA)6(PTA)3(DMF)3(H2O)3 () (PDA = 2,6-pyridinedicarboxylate, PTA = benzene-1,3-dicarboxylate, DMF = dimethylformamide) was successfully synthesized and fully characterized. Complex can be used as a supramolecular building block in constructing a higher-order helix-of-helix structure, [Co8(PDA)6(PTA)3(DMF)2(H2O)4-0.51(Co(OHn)2)] (n = 1 or 2) ().

The title compound, C(7)H(15)N(3)P(+)·BF(4) (-) or [PTA-Me][BF(4)], is the N-methyl-ated derivative of the well known water-soluble amino-phosphine 1,3,5-triaza-7-phosphaadamantane (PTA). The asymmetric unit consists of a cage-like cation [PTA-Me](+) and a disordered tetra-fluoro-borate anion; two F atoms are disordered equally over two sites. A network of weak inter-molecular C-H⋯F hydrogen bo...