Arbovirus studies in the Ohio-Mississippi Basin, 1964-1967. VII. Lone Star virus, a hitherto unknown agent isolated from the tick Amblyomma americanum (Linn).
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Animals↗
Biomedical subjects
J Hayes
Publications and source records attributed to J Hayes.
St. Louis encephalitis in McLeansboro, Illinois, 1964.
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Animals↗
Toxicology of Abate in volunteers.
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Cholinesterases↗
Peripheral nerve dysfunction in adult patients with cystic fibrosis.
The prevalence of peripheral nerve dysfunction was assessed in 24 randomly selected adult patients with cystic fibrosis. Median, peroneal and sural nerves were studied. In 15 patients (62%), one or more electrical abnormality were detected. In the median nerve, conduction velocity was slowed in 29% of sensory studies and 12.5% of motor studies; compound muscle action potential (CMAP) and sensory nerve action potential (SNAP) amplitudes were normal. The CAMP was low in 17% of peroneal studies with motor conduction velocity slow in 8%. The sural SNAP was low in 17% and sensory nerve conduction velocity slow in 25%. Using a multiple regression analysis only age at diagnosis was identified as a significant predictor of peripheral nerve dysfunction (multiple R = 0.55; p < 0.01). This study demonstrates that mild peripheral nerve dysfunction is common in patients with cystic fibrosis. With the improving long term survival of these patients we predict that the prevalence and severity of this complication will increase.
Action Potentials↗
Predictors and outcomes of cardiac complications following elective coronary bypass grafting.
Our objective was to determine the predictors of cardiac complications among a cohort of elective coronary artery bypass graft (CABG) surgery patients and to determine the relationship of such complications to subsequent quality of life and symptoms. A total of 248 patients were enrolled and 237 completed 6 month follow-up. The combined rate of both major and minor cardiac complications was 9.7% (n = 24). Patients in this study were evaluated preoperatively, monitored intraoperatively, followed immediately postoperatively and at 6 months. Major cardiac complications accounted for 3.6% (n = 9) and minor complications for 6% (n = 15). Using multivariable logistic regression analysis, the predictors of major cardiac complications were receiving diuretics preoperatively (p = .01) and increased time during cross-clamping (p = .006). At 6 months after surgery, 19% of the patients with postoperative cardiac complications experienced worsening of symptoms, in contrast to only 8% of those without cardiac complications (p = .03). We concluded that patients who were on preoperative diuretics and those who had longer cross-clamp times were at higher risk of cardiac complications. The majority of patients who had acute cardiac complications had improved function and symptoms at 6 months postoperatively.
Aged↗
The effect of an educational program on transfusion practices in a regional blood program.
With the increased complexity of blood component therapy, it is important to be able to modify physician behavior with reliable educational programs. A standardized educational program on the use of red blood cells and whole blood was tested in 22 hospitals in a regional blood program using medical audit and computer monitoring to evaluate effectiveness. Most hospitals were eager to take advantage of the education program but were unwilling to use the audit-education cycle. At the same time, computer monitoring of indivisual hospital ordering and transfusion practices demonstrated an increased utilization of red blood cells in 64 per cent of hospitals with an overall improvement of 8 per cent. The improved use of red blood cells was appreciated within the month of the program and then sustained for six to twelve months at the new level.
Blood Transfusion↗
A multicenter, prospective study of the placement of transpyloric feeding tubes with assistance of a magnetic device. The Magnet-Guided Enteral Feeding Tube Study Group.
BACKGROUND: Placement of feeding tubes in the transpyloric position can be helpful in the management of enterally fed patients with pancreatitis, gastric atony, enterocutaneous fistulae, or pulmonary aspiration risk. The attainment of transpyloric position is difficult, and numerous techniques have been proposed to help in achieving this location. Recently, the use of a magnet-tipped feeding tube, dragged into proper position with an external magnet, has been described with an excellent success rate. METHODS: At 10 participating institutions, practitioners were trained in the use of the device. Successful tube placement was determined by abdominal radiograph. RESULTS: One hundred fifty-six tube placements were attempted. Transpyloric position was obtained in 60%. Placement into the third portion of the duodenum or distal was obtained in only 32%. Analysis of the data did not reveal a learning curve at the institutions, and 7 of 10 had a 50% or lower success rate. CONCLUSIONS: Placement of feeding tubes with the assistance of a magnetic device was infrequently successful at the majority of institutions where it was attempted. We report a lower success rate than the original article, which described an 88% success rate of transpyloric intubation. Although this technique has a high failure rate, some individuals seem to be very successful using it, which could reduce the need for endoscopy or transport for the placement of feeding tubes.
Electromagnetic Phenomena↗
The experience of therapeutic touch from a nursing perspective.
This article describes the phenomenon of therapeutic touch (TT). Similarities and differences in the experience of the phenomenon from the perspective of a novice practitioner and healthy volunteers are highlighted. A qualitative analysis of findings indicates that the experiences of giving and receiving TT can be classified within two categories: the cognitive (knowing in the widest sense); and conative (instinct and feeling). The key constructs which emerged in this study are associated with feelings such as tingling, warmth, coolness, comfort, peace, calm and security. Formulation of the two main categories, cognitive and conative, emphasize the relationship associated with what is known by the mind and instinctively felt by the body. The holistic aspects associated with the phenomenon of TT are confirmed in the therapeutic relationship which can be formed between the practitioner and recipient during the administration of TT. It is suggested that TT, when provided by the nurse in the clinical setting, can promote feelings of comfort, peace, calm and security among patients.
Adult↗
Jaundice and disseminated intravascular coagulopathy in pregnancy.
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Adult↗
Creutzfeld-Jakob disease: the Grace General Hospital experience.
After some patients were exposed to a blood product from a donor with Creutzfeld-Jakob disease, Winnipeg hospitals had to decide whether to inform them of the possibly minuscule health risk. The Salvation Army Grace Hospital decided to inform its patients, citing their fundamental right to facts regarding their own health; their need to make a responsible, informed decision regarding donation of their own blood or organs; and the need to maintain the trust and confidence of the public in the wake of the Krever inquiry.
Blood Donors↗
Prolonging access function and survival, the nurse's role.
Vascular access is the lifeline of all patients undergoing HD. In a recent patient satisfaction survey, the area of vascular access and needling technique was highlighted as an area with the need for improvement, this is addressed in this paper by the formulation of: Individual access Vulnerability Score, an Access Care Plan and the implementation of a Staff cannulation training programme. Addressing these 3 areas of practice with a structured programme not only assists staff to develop and value patient access but ultimately provides a higher quality of service. Patient satisfaction, access complications, staff knowledge and clinical abilities can all be improved by the implementation of a more structured approach to developing and valuing vascular access.
Algorithms↗
Determination of emamectin benzoate in medicated fish feed.
A method was developed to quantitate emamectin benzoate in fish feed at levels between 5 and 15 ppm. The active ingredient is extracted from 20 g medicated feed into aqueous-methanolic solvent by overnight shaking. A solid-phase extraction procedure using a 2 g C18 cartridge is then used to concentrate the active residue and remove interfering matrix components. The extracted drug and internal standard are eluted from the cartridge, evaporated to dryness, and reconstituted in methanol. A control feed sample and fortified control working standard are simultaneously prepared. Remaining interferences and sample analysis are further separated on a gradient liquid chromatographic system. Recovery of emamectin benzoate from fortified feeds ranged from 97 to 100%, with a coefficient of variation (CV) of 1.2%. Determination of emamectin benzoate in medicated feeds resulted in CVs ranging from 2.3 to 4.2% and recoveries of 88 to 98% of label claim.
Animal Feed↗
Non-nursing duties are eroding our status.
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Australia↗
HLA-DR and -DQ genotyping in anti-GBM disease.
Anti-GBM disease has been associated with the HLA genes of the major histocompatibility complex (MHC) in previous serological studies, with an increased incidence of HLA-DR2 in patients. In this study, 36 patients with anti-GBM disease were genotyped by restriction fragment length polymorphism (RFLP) analysis using cDNA probes for DRB, DQA, and DQB. The frequency of HLA-DRw15(Dw2), a split of DR2, was significantly increased in the patients compared with the controls (63.9 per cent versus 23.3 per cent, chi 2 = 22.4, p(corr) less than 0.0001), and all but one of the patients were positive for either DRw15(Dw2) or DR4 (p less than 0.0001). The frequencies of the remaining DR antigens were not decreased randomly, with a significant decrease in DR7 in the patient group (chi 2 = 8.6, p(corr) less than 0.05). The closely linked gene HLA-DQw6 was found to be significantly increased in frequency in the patients compared with the controls (p(corr) less than 0.0001). No correlations could be made between the genetic data and clinical features of the disease.
Adolescent↗
Temperament and cognitive style in early childhood.
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Child, Preschool↗