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In this clinical trial involving patients undergoing high-risk cardiac surgery, aprotinin was somewhat more effective than either aminocaproic acid or tranexamic acid in reducing massive perioperative bleeding but at the expense of a higher rate of death, mainly from cardiac causes. Aprotinin cannot be recommended to control blood loss in this clinical setting. In patients undergoing high-risk cardiac surgery, aprotinin was somewhat more effective than either aminocaproic acid or tranexamic acid in reducing massive perioperative bleeding but at the expense of a higher rate of death, mainly from cardiac causes. Every year an estimated 1 million to 1.25 million patients worldwide undergo cardiac surgery, including high-risk procedures such as repeat coronary-artery bypass grafting (CABG), valve replacements, and combined procedures. 1 High-risk procedures present an increased risk of death, massive bleeding, renal failure, and thrombotic complications, as compared with first-time isolated CABG. 2 – 4 Three antifibrinolytic agents have been used in cardiac surgery to minimize bleeding and reduce the need for transfusion: aprotinin, a naturally occurring serine protease inhibitor, and two lysine analogues, tranexamic acid and aminocaproic acid. 5 In clinical trials, all three drugs have been shown to be effective in reducing the . . .

To describe the utility of vasopressin in the treatment of acute distributive shock clinically compatible with the diagnosis of aprotinin anaphylaxis. A 57-yr-old female patient underwent repeat cardiac surgery to treat prosthetic valve endocarditis. She had received aprotinin during her first surgery 60 days ago. Despite a negative test dose of i.v. aprotinin 20,000 KIU, when aprotinin loading was initiated during the repeat surgery, the patient developed bronchospasm and hypotension secondary to acute distributive shock. Bronchospasm responded to inhaled salbutamol and ipatropium. The hypotension was refractory to high doses of phenylephrine. Two doses of i.v. vasopressin 5 U reversed the vasodilation and reestablished normal blood pressure. Vasopressin, in association with alpha-agonists, can reverse acute refractory distributive shock following aprotinin administration.

Pressure measurements at the level of the right atrium are commonly used in clinical anesthesia and the intensive care unit (ICU). There is growing interest in the use of peripheral venous sites for estimating central venous pressure (CVP). This study compared bias, precision, and covariance in simultaneous measurements of CVP and of peripheral venous pressure (PVP) in patients with various hemodynamic conditions. Operating room and ICU of a tertiary care university-affiliated hospital. Nineteen elective cardiac surgery patients requiring cardiopulmonary bypass were studied. A PVP catheter was placed in the antecubital vein and connected to the transducer of the pulmonary artery catheter with a T connector. Data were acquired at different times during cardiac surgery and in the ICU. A total of 188 measurements in 19 patients were obtained under various hemodynamic conditions which included before and after the introduction of mechanical ventilation, following the induction of anesthesia, fluid infusion, application of positive end expiratory pressure and administration of nitroglycerin. PVP and CVP values were correlated and were interchangeable, with a bias of the PVP between -0.72 and 0 mmHg compared to the CVP. PVP monitoring can accurately estimate CVP under various conditions encountered in the operating room and in the ICU.

Magnesium potentiates the effect of nondepolarizing neuromuscular blocking agents. It is used in cardiac anesthesia to prevent hypertension and arrhythmias. This study was performed to measure the interaction between magnesium and cisatracurium in cardiac surgery. Twenty patients scheduled for elective cardiac surgery were randomly assigned to receive magnesium sulfate (70 mg x kg(-1) at induction followed by 30 mg x kg(-1) x hr(-1)) or placebo. The ulnar nerve was stimulated and the electromyographic response of the adductor pollicis was measured. Cisatracurium 0.1 mg x kg(-1) was given at induction, followed by 0.05 mg x kg(-1) when the first twitch in the train-of-four reached 25%. Ionized magnesium was 1.32 +/- 0.24 mmol x L(-1) in the treatment group vs 0.47 +/- 0.4 mmol x L(-1) in the control group. Duration of action of the intubating dose was longer in the magnesium group (74 +/- 20 min) than in the placebo group (42 +/- 6 min, P = 0.0001). Duration of the first maintenance dose was 69 +/- 16 min in the magnesium group vs 35 +/- 7 min in the placebo group (P = 0.0001). Total dose of cisatracurium administered throughout surgery was 0.19 +/- 0.07 mg x kg(-1) in the magnesium group compared with 0.29 +/- 0.01 mg x kg(-1) in the placebo group (P = 0.017). Hemodynamic variables and temperature were similar in both groups. In patients undergoing cardiac surgery, administration of magnesium sulfate, resulting in ionized levels of 1.3 mmol x L(-1), results in a 30-35 min prolongation of the neuromuscular blockade induced with intubating and maintenance doses of cisatracurium and does not alter hemodynamic stability.

The suggestion by the mayor and Mendel chair Art Knight that a compromise was necessary because the federal government doesn't support renovation projects simply isn't true; Ottawa has supported the renovation of several cultural facilities across Canada. In strong support of that founding vision and the renovation of the Mendel, former gallery director Terry Graff stated in 2005: \"The architectural design of an art gallery should exceed its practical, technological requirements to also serve as an object of esthetic beauty, as an exemplar of a particular architectural style, as a symbol of culture, heritage and civic identity, and as a repository of the very best of social values.\"

PurposeFDG PET/CT is emerging as a new tool for the evaluation of acute encephalitis (AE). However, to date, there are no exclusively pediatric studies on the use of FDG PET for suspected AE. The objective of this study was to compare qualitative and quantitative brain PET to conventional brain imaging in a cohort of children, and to identify patterns of metabolic abnormalities characteristic of AE.MethodsThis retrospective study included 34 children imaged with PET/CT, CT and magnetic resonance imaging (MRI). The positivity rate of all three imaging modalities was measured. Besides visual assessment, quantification of relative regional brain metabolism (RRBM) was performed and compared to a database of normal pediatric brains.ResultsFourteen subjects had a clinical diagnosis of autoimmune encephalitis (AIE) or encephalitis of unknown origin (EX), six of anti-N-methyl-D-aspartate receptor (anti-NMDAr) encephalitis, three of Hashimoto’s encephalopathy, three of neurolupus and eight had other subtypes of encephalitis.Quantitative PET was abnormal in 100% of cases, visually assessed PET in 94.1% of subjects, MRI in 41.2% and CT in 6.9%. RRBM quantification demonstrated multiple hyper and hypo metabolic cortical regions in 82.3% of subjects, exclusively hypermetabolic abnormalities in 3%, and exclusively hypometabolic abnormalities in 14.7%. The basal ganglia were hypermetabolic in 26.5% of cases on visual assessment and in 58.8% of subjects using quantification.ConclusionIn our pediatric population FDG PET was more sensitive than conventional imaging for the detection of AE, and basal ganglia hypermetabolism was frequently encountered.

In contemporary spoken European French, on meaning `we' is the predominant first-person plural variant, having largely supplanted its competitor, nous. There is, however, considerable debate as to whether the domination of on is the result of fairly rapid change in the late nineteenth/early twentieth centuries or whether there is actually a robust tradition of on usage going back several centuries. In this article, we trace the trajectory of first-person plural pronominal variation over four centuries of usage and investigate the role of both linguistic and extralinguistic conditioning factors, an analysis based on data from plays and parodic dialogues, metalinguistic commentary (by grammarians, lexicographers, and philologists), and naturalistic data (sociolinguistic interviews). The study not only involves quantitative and qualitative analysis of on and nous usage, the variants typically considered in the literature, but also focuses on the use of je in combination with the first-person plural ending -ons, a lower-class variant not sufficiently taken into account in earlier studies. We show that a shift toward dominant on does take place in the latter half of the nineteenth century in lower-class speech, but on is not adopted by the upper classes until the twentieth century. Further, the lower class does not move directly from je to on but rather passes through an intermediate stage wherein nous is the dominant variant, a transition interpreted as part of a general shift toward greater analycity in the pronominal system. We show that for much of the period under study, on is primarily associated with unrestricted reference, taking over in restricted reference contexts only as the change accelerates. We then compare variation and change in European French to what has obtained in both conservative and innovative New World varieties, varieties with closely related grammars but that differ with regard to their history and to the sociolinguistic settings in which they are spoken. This comparison allows further testing and confirmation of the analyses put forward for European French.

Many copy number variants (CNVs) confer risk for the same range of neurodevelopmental symptoms and psychiatric conditions including autism and schizophrenia. Yet, to date neuroimaging studies have typically been carried out one mutation at a time, showing that CNVs have large effects on brain anatomy. Here, we aimed to characterize and quantify the distinct brain morphometry effects and latent dimensions across 8 neuropsychiatric CNVs. We analyzed T1-weighted MRI data from clinically and non-clinically ascertained CNV carriers (deletion/duplication) at the 1q21.1 (n = 39/28), 16p11.2 (n = 87/78), 22q11.2 (n = 75/30), and 15q11.2 (n = 72/76) loci as well as 1296 non-carriers (controls). Case-control contrasts of all examined genomic loci demonstrated effects on brain anatomy, with deletions and duplications showing mirror effects at the global and regional levels. Although CNVs mainly showed distinct brain patterns, principal component analysis (PCA) loaded subsets of CNVs on two latent brain dimensions, which explained 32 and 29% of the variance of the 8 Cohen’s d maps. The cingulate gyrus, insula, supplementary motor cortex, and cerebellum were identified by PCA and multi-view pattern learning as top regions contributing to latent dimension shared across subsets of CNVs. The large proportion of distinct CNV effects on brain morphology may explain the small neuroimaging effect sizes reported in polygenic psychiatric conditions. Nevertheless, latent gene brain morphology dimensions will help subgroup the rapidly expanding landscape of neuropsychiatric variants and dissect the heterogeneity of idiopathic conditions.