Connie R. Hill

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The development of a widened mediastinum in patients with neoplastic disease frequently indicates tumor recurrence or spread. Seven cases of mediastinal widening in children with a variety of neoplasms are described wherein the etiology is either proven or strongly suspected to be benign thymic enlargement. Awareness of this benign etiology for mediastinal(More)
A paucity of outcome measures exist for children, making evidence-based treatment guidelines difficult to establish. Serum albumin has been identified as a surrogate marker for nutritional status and morbidity/mortality in patients with end-stage renal disease (ESRD). We hypothesized that the prevalence of low serum albumin (<2.9 g/dl) in children on(More)
The radiographs of 136 patients with bronchioloalveolar carcinoma were reviewed. The varied radiographic manifestations were a result of the characteristic peripheral location of the tumor, its tendency to infiltrate the local airways with mucus production and desmoplasia, and its variable aggressiveness resulting in a wide variation in rate of(More)
OBJECTIVE To determine baseline rates of primary bloodstream infection (BSI) among a large pool of patients receiving hemodialysis using standardized surveillance tools and methodology. DESIGN Prospective, descriptive analysis of primary BSI rates. SETTING Ten hospital-based hemodialysis centers in Connecticut. PATIENTS All patients receiving(More)
We propose a methodology of applying PoMDPs at a sufficiently high abstraction of a high-dimensional continuous-time partially observable hybrid system. In particular, we develop a two-layer hybrid controller, where the higher-level PoMDP-based hybrid controller learns the boundaries between various modes and appropriately switches between them. The modes(More)
The Health Care Financing Administration (HCFA) has gathered clinical data on end stage renal disease (ESRD) patients since 1994, but details are only available on patients ≥18 years. In this report, we present morbidity data collected prospectively over 12 months from all children (1–18 years) maintained on either hemodialysis (HD) or peritoneal dialysis(More)
Although there is a substantial body of evidence implicating Myodil or Pantopaque as a cause of lumbar arachnoiditis, assessment of the clinically based evidence is complicated by the additional potentially causative factors present in a high proportion of cases. These include pre-existing spinal pathology, traumatic lumbar puncture and surgery. The aim of(More)
A prospective comparison was made of standard two-dimensional MRI sequences, at both high and midfield strength, with CT myelography in 23 patients with cervical spondylosis. MRI is adequate for assessment of cord compression, where high field strength is superior to midfield strength. MRI using 4-mm sections is inadequate for presurgical assessment of root(More)
Two MRI strategies which have been reported to be effective in assessing cervical exit foramina, were prospectively compared with CT myelography in 20 patients with cervical radiculopathy. The first strategy utilized 3D T2* images, the second gadolinium enhanced 2D T1 images. Gadolinium (dimeglumine gadopentetate, Schering Ltd) enhanced images did not(More)