This review intends to serve as a practical guide reflecting the current understanding of adverse transfusion

events, clinical features helpful for diagnosis, and recommended management strategies for typical scenarios. Severe and mild transfusion reactions are covered, with a focus on the distinguishing features of challenging clinical dilemmas. Topics include pulmonary complications of transfusion, hemolytic reactions, allergic and anaphylactic reactions, septic reactions, and febrile responses to transfusion. We also discuss a consultative approach to evaluation and reporting of transfusion reactions.”
“Background: Adenosine cardiovascular magnetic C59 Wnt inhibitor resonance (CMR) can accurately quantify myocardial perfusion reserve. While regadenoson is increasingly employed due to ease of use, imaging protocols

have not been standardized. We sought to determine the optimal regadenoson CMR protocol for quantifying myocardial perfusion reserve index (MPRi) – more specifically, whether regadenoson stress imaging should be performed before or after rest imaging.

Methods: Twenty healthy subjects underwent CMR perfusion imaging during resting conditions, during regadenoson-induced hyperemia (0.4 mg), and after 15 min of recovery. In 10/20 subjects, recovery was facilitated Tariquidar order with aminophylline (125 mg). Myocardial time-intensity curves were used to obtain left ventricular cavity-normalized myocardial up-slopes. MPRi was calculated in two different ways: as the up-slope ratio of stress to rest (MPRi-rest), and the up-slope ratio of stress to recovery (MPRi-recov).

Results: In all 20 subjects, MPRi-rest was 1.78 +/- 0.60. Recovery up-slope did not return to resting levels, regardless of aminophylline use. Among patients not receiving aminophylline, MPRi-recov was 36 +/- 16% lower than MPRi-rest (1.13 +/- 0.38 vs. 1.82 +/- 0.73, P = 0.001).

In the 10 patients whose recovery was facilitated with aminophylline, MPRi-recov was 20 +/- 24% lower than MPRi-rest (1.40 +/- 0.35 vs. 1.73 +/- 0.43, P = 0.04), indicating incomplete reversal. In 3 subjects not receiving aminophylline and 4 subjects receiving aminophylline, up-slope at recovery was greater JAK 抑制剂 than at stress, suggesting delayed maximal hyperemia.

Conclusions: MPRi measurements from regadenoson CMR are underestimated if recovery perfusion is used as a substitute for resting perfusion, even when recovery is facilitated with aminophylline. True resting images should be used to allow accurate MPRi quantification. The delayed maximal hyperemia observed in some subjects deserves further study.”
“Objective: Growing evidence has shown an association between obesity and asthma. Adiponectin, an adipocyte-derived cytokine, is known to have anti-inflammatory effects with reduced concentrations in obese subjects. Recent findings raised the intriguing possibility that adiponectin might play a role in allergic inflammation, although the mechanistic basis for their relationship remains unclear.