Jesse C. Johnson

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AIMS To evaluate the safety and efficacy of internal resection in the treatment of malignant melanoma of the choroid. METHODS 32 consecutive patients with histopathologically proved malignant choroidal melanomas were treated with internal resection. 29 of the 32 (90.6%) tumours were within 2 disc diameters of the optic nerve or fovea. The surgery was(More)
The purpose of this study was to evaluate the added benefit of computed tomography lower extremity venography (CTLV)—performed following CT pulmonary angiography (CTPA)—in the emergency department (ED) patient suspected of pulmonary embolism (PE). A retrospective review of 427 consecutive patients having both CTPA and CTLV performed to evaluate patients(More)
Elderly patients face a mortality risk two to three times greater for certain surgical procedures than do middle-aged patients. This increased risk is attributed partly to the normal physiologic changes associated with aging, but more so to pathologic changes seen less uniformly in the elderly population. Most studies report cardiac and pulmonary(More)
We compared the field efficacy of a new antibiotic, florfenicol, with tilmicosin in the treatment of naturally occurring undifferentiated bovine respiratory disease. Beef calves with rectal temperatures greater than 40.5 degrees C and signs compatible with undifferentiated bovine respiratory disease were entered into the trial. Calves were randomly assigned(More)
The triad of normal-pressure hydrocephalus, parkinsonism, and primary empty sella appeared in a 70-year-old woman. There was dramatic resolution of the extrapyramidal signs and symptoms on treatment with levodopa-carbidopa and ventriculojugular shunt. The syndrome may be the result of several mechanisms, but an alteration of cerebrospinal fluid (CSF)(More)
OBJECTIVE To report values for percentage coverage of the femoral head (PC) and Norberg angle (NA) in 4 common breeds of dogs and to determine values for each that distinguish between normal and dysplastic hip status on the basis of Orthopedic Foundation for Animals (OFA) hip evaluation. ANIMALS 1,841 dogs 24 to 48 months of age that were Labrador(More)
OBJECTIVE To determine the efficacy of florfenicol for treatment of calves with naturally occurring infectious bovine keratoconjunctivitis (IBK). DESIGN Randomized controlled field trial. ANIMALS 63 beef calves and 80 dairy calves between 4 and 12 months of age. PROCEDURE Calves were randomly assigned to 1 of 3 treatment groups. Calves in the SC(More)
OBJECTIVE To evaluate efficacy of florfenicol in an induced model of infectious bovine keratoconjunctivitis, using a blinded randomized, controlled trial. ANIMALS 48 male Holstein calves, 2 to 4 months old. PROCEDURE Moraxella bovis infection was induced in all calves. When corneal ulcers developed, each calf was assigned randomly to 1 of 3 treatment(More)
STUDY OBJECTIVES To evaluate the immediate cardiac and cardiovascular effects of Taser X26 conducted electrical weapon (CEW) exposure in human volunteers, including heart rhythm, rate and blood pressure. METHODS Volunteer police officers participating in CEW training and testing each underwent a 5, 3 and 1 s exposure to the Taser X26 CEW. Continuous(More)