Utrasound as a method for confirming the positioning of enteral catheters in critically ill patients.

Aim: To evaluate the agreement between the bedside ultrasound in a single epigastric window and the plain X-ray to confirm the positioning of the enteral catheter in critically ill patients.

Material And Methods: This was an observational, cross-sectional study conducted in two Intensive Care Units of a university hospital. The ultrasound exams were carried out immediately after the introduction of the enteral catheter, using only the epigastric window, with an injection of 5 ml of air associated with 5 ml of saline solution.

Cyclopalladated compounds containing 2,6-lutidine: Synthesis, spectral and biological studies.

Bridge splitting reactions between [Pd(C,N-dmba)(μ-X)] (dmba = N,N-dimethylbenzylamine; X = Cl, I, N, NCO) and 2,6-lutidine (lut) in the 1:2 molar ratio at room temperature afforded cyclopalladated compounds of general formulae [Pd(C,N-dmba)(X)(lut)] {X = Cl (1), I(2), NNN(3), NCO(4)}, which were characterized by elemental analyses and infrared (IR), H NMR spectroscopy. The molecular structures of all synthesized palladacycles have been solved by single-crystal X-ray crystallography. The cytotoxicity of the cyclopalladated compounds has been evaluated against a panel of murine {mammary carcinoma (4T1) and melanoma (B16F10-Nex2)} and human {melanoma (A2058, SK-MEL-110 and SK-MEL-5) tumor cell lines.