Báo cáo y học: "Heterogeneity in ventilation during positive end-expiratory pressure" ppt

... anticipating any good eff ect of inhomogeneity of ventilation during PEEP may give a false impression to physicians regarding mechanically ventilated patients in the ICU. Respiratory parameters ... heterogeneity) caused by diff erent degrees of lung collapse and hyper- distension. Our major point in our commentary was that by simply trying to minimize the heterogeneity in ventila...

Ngày tải lên: 13/08/2014, 21:21

... concomi- tant inspiratory efforts and as obstructive hypopnea in the presence of discernable inspiratory airflow reduction with inspiratory efforts accompanied by a decrease of >3% in oxygen saturation. ... possibil- ity for snoring people to have OSAH. Indeed, according to this method an increased pharyngeal collapsibility even during wakefulness affects the vast majority of snorers...

Ngày tải lên: 12/08/2014, 16:20

... have investigated the preventive or prophylactic use of NPPV immediately after extubation in avoiding extubation failure in comparison with standard medical therapy. In one early study on the indiscriminate ... valid alternative for ventilation in a group of heterogeneous patients that initially failed weaning. NPPV is increasingly being proposed in the management of the ventilato...

Ngày tải lên: 13/08/2014, 08:21

... thresh- old value may abrupt changes in the system occur. Since we consider a late end-point, namely cancer, in a very complicated system, it is not surprising that we obtain in Section 4 mixture ... for variability among individuals. This allows us to introduce heterogeneity in a biologically meaningful way. In the next section, we describe the multistage carcinogen- esis model and...

Ngày tải lên: 13/08/2014, 16:21

... procollagen prolyl hydroxylases (P4HA1 and P4HA2), lysyl oxidase (LOX) and lysyl hydroxylases (procollagen lysyl hydroxylase and procollagen lysyl hydroxylase 2). Similar links between hypoxia and ... oxygen-dependent regu- lation of HIF-1α. This hydroxylation is catalyzed by a family of 2-oxoglutarate dependent dioxygenases called prolyl hydroxy- lase domains (PHDs) [7]. During the hydroxy...

Ngày tải lên: 09/08/2014, 01:22

... many different cytokines may be involved. Second, although many cytokines may be involved in the pathogenesis of SLE, research thus far has concentrated on a small group of cytokines, notably tumour ... meeting showed the breadth of interest in the role played by different cytokines in SLE. A large amount of work in mice, and a smaller body of evidence on the effects of anticytokine a...

Ngày tải lên: 09/08/2014, 01:22

... is included in the study. Results showed a 5% to 10% improvement in prediction using combined versus single biomarkers – a definite improvement on existing biomarkers. This is an important principle ... efficacy of intervention and diagnostic) recommendations [4]. As the authors comment, the use of the current suboptimal method for determining OA radiographically is a weakness and only ea...

Ngày tải lên: 09/08/2014, 14:22

... evidence, par- ticularly if they are integrated in the hypothesis testing step of positive deviance studies; however, used in isola- tion, such studies they may oversimplify recommenda- tions for ... delay in performing direct coronary angioplasty and early clinical outcome in patients with acute myocardial infarction: results from the global use of strategies to open occluded arter...

Ngày tải lên: 11/08/2014, 05:21

... Christensen F: Hypokalemic myopathy in pregnancy caused by clay ingestion. Obstet Gynecol 2003, 102(5):1169-1171. 13. Falcomata TS, Roane HS, Pabico RR: Unintentional stimulus control during the treatment ... observed since antiquity, pica remain s a mys- terious and fascinating occurrence. It seems to be strongly associated with iron deficiency anemia, and in the majority of cases the...

Ngày tải lên: 11/08/2014, 12:20

... by volume loading’ can therefore be achieved simply by minimising PPV with the advantage of being less invasive. In their paper, Lopes and colleagues [25] show that minimising PPV (<10%) by ... volume index (SVI) after sternotomy in cardiac surgery patients. This study showed that dynamic parameters such as PPV and SVV are more accurate in predicting changes in CO following sternot...

Ngày tải lên: 13/08/2014, 11:22