Youth offer valuable insight on health communication needs and solutions in their communities. We propose youth participatory action communication research (YPACR) as a model for health campaign development that engages youth perspectives in applying systematic theory-informed communication research to addressing youth-identified health priorities. YPACR informed a series of paid high school internship programs in West Philadelphia, in which youth interns identified mental health help-seeking communication as a need among peers.
View Article and Find Full Text PDFBackground: Sepsis and septic shock remain a significant burden on the US health care system. A multidisciplinary response system (Coordinated Response to Sepsis, CaRTS) that included a pharmacist responder was implemented for patients with newly suspected sepsis.
Objective: To evaluate the time to appropriate antibiotic administration among patients with the CaRTS intervention compared with historical controls.
Background: Critically ill patients often require sedation and analgesia. Scales have been developed to provide clinicians with sedation targets. Daily interruption of continuous infusions of sedatives and sedation protocols improve patients' outcomes.
View Article and Find Full Text PDFPurpose: The primary purpose of this study was to compare the efficacy of 1.4 percent sodium citrate with heparin, 4 U/ml, for maintaining radial artery catheter patency in patients in the medical ICU.
Patients And Methods: Patients in the medical ICU (n = 40) were randomized to either a 1.
Adult swine (n = 18) were studied to compare the effects on neuronal morphology of hypothermic circulatory arrest with hypothermic very-low-flow cardiopulmonary bypass. Animals were anesthetized with halothane and prepared in a standard manner for nonpulsatile cardiopulmonary bypass. Monitored variables included mean arterial pressure, arterial blood gases, the processed electroencephalogram, and subdural brain temperature.
View Article and Find Full Text PDFWe prospectively studied transport of a group of 100 surgery/trauma patients and a matched control group in the ICU. APACHE II scores for the two groups were 23 +/- 6 and 20 +/- 8. During transport both groups had ECG, heart rate, blood pressure, and oxygen saturation continuously monitored.
View Article and Find Full Text PDFThis study compares the synthesis of mutant type I collagen in cultured dermal fibroblasts and trabecular osteoblasts that were isolated from a patient with moderately severe osteogenesis imperfecta (type IV). Previous study of this patient's dermal fibroblasts revealed a 2000 dalton deletion located in cyanogen bromide peptide 4 of alpha 2(I)-collagen. The phenotype of the bone cell cultures was defined by a 3-4 day logarithmic phase doubling time, predominantly type I collagen production over type III and alkaline phosphatase activity 13.
View Article and Find Full Text PDFA double-blind, randomized study was conducted in 30 adult medical intensive care unit patients to determine if the presence of heparin in continuous-flush solutions prolongs the functional life span of radial arterial catheters compared with catheters flushed with solutions not containing heparin. Patients were consecutively entered into the study and randomly assigned to receive arterial line flush solutions containing 0.9% sodium chloride (NSS) or heparin 4 U/ml in 0.
View Article and Find Full Text PDFThis study quantifies the in vitro motion occurring between bone and cemented and noncemented tibial components. Liquid metal strain gauges were used to measure the motion between the tibial component and bone at four locations in eight cadaver tibia at near-point cyclic loads ranging from 10 to 2,000 N. Two types of motion were observed: inducible displacement, which is reversible, followed the oscillating load and occurred in both cemented and uncemented tests, and liftoff or separation of the component and bone, which occurred only for the noncemented cases and remained even after removal of the load.
View Article and Find Full Text PDFThe common carotid arteries were ligated bilaterally 2 weeks before induction of subarachnoid hemorrhage in rabbits. The rabbits were observed closely for clinical symptoms, and angiographic and pathologic investigations were performed. Thirteen experimental rabbits showed a progressing neurologic deficit that was worst on the fourth or fifth day after the subarachnoid hemorrhage.
View Article and Find Full Text PDFThis study using pigs was designed to determine the efficacy of delayed subarachnoid plasmin injection in preventing the vasculopathy secondary to experimental subarachnoid hemorrhage. Animals received cisterna magna injections of either plasmin or saline 2, 4, or 6 days after double subarachnoid blood injection. The cerebral blood vessels of all animals were examined histologically for evidence of intimal proliferation and medial necrosis.
View Article and Find Full Text PDFUtilizing a double subarachnoid blood injection model in pigs, we have evaluated the protective effect of the intracisternal injection of the thrombolytic agent, plasmin, in preventing the secondary intracranial arteriopathy seen after artificial subarachnoid hemorrhage in untreated animals. Twelve animals injected with plasmin revealed markedly less intimal proliferation and medial necrosis than were seen in control animals. These observations support the hypothesis that the persistence of clotted blood around the intracranial arteries is the cause of the vasculopathy.
View Article and Find Full Text PDFJ Neurosurg
September 1984
A model of experimental subarachnoid hemorrhage in young pigs has been created using two subarachnoid blood injections. Cerebral arteries of the pig demonstrate intimal proliferation and medial necrosis 10 days after experimental blood injection; this appears to be a reaction to arterial injury. The similarity between the arterial reaction to subarachnoid blood and the general process of atherosclerosis is noted, and steps have been taken to insure that the vasculopathy described is truly a response to the injected blood.
View Article and Find Full Text PDFCerebral arteries have been shown to react to experimental subarachnoid hemorrhage with a nonspecific arterial injury reaction characterized by endothelial cell desquamation, adherence of platelets to the exposed collagen, subendothelial edema, and medial necrosis. This injury reaction is followed by a reparative process with intimal proliferation and medial fibrosis. We have postulated that the arterial narrowing seen by angiography in patients after subarachnoid hemorrhage may be a manifestation of this injury reaction.
View Article and Find Full Text PDFExperiments in monkeys have demonstrated that the chronic vasospasm and arterial injury reaction produced by subarachnoid blood injection can be prevented by treatment with the phosphodiesterase inhibitor phthalazinol. This protective effect, which is present even when the drug treatment is initiated after the subarachnoid blood injection, is presumed to occur because of the platelet inhibiting effect of phthalazinol.
View Article and Find Full Text PDFJ Comp Physiol Psychol
October 1975
Male mice (C57BL/10J or SJL/J strains) were reared in either enriched social cages or restricted individual cages from 25 days of age until they underwent septal or control surgery 1 mo later. Enrichment differentially altered septal or control behavior as measured by: fluid consumption of water, saccharin, and quinine; performance on a rotorod; and the acquisition of an active avoidance task. The interactions of presurgical history with brain damage were manifested differently in the two strains of mice.
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